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1// CodeMirror, copyright (c) by Marijn Haverbeke and others 2// Distributed under an MIT license: https://codemirror.net/5/LICENSE 3 4// This is CodeMirror (https://codemirror.net/5), a code editor 5// implemented in JavaScript on top of the browser's DOM. 6// 7// You can find some technical background for some of the code below 8// at http://marijnhaverbeke.nl/blog/#cm-internals . 9 10(function (global, factory) { 11 typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() : 12 typeof define === 'function' && define.amd ? define(factory) : 13 (global = global || self, global.CodeMirror = factory()); 14}(this, (function () { 'use strict'; 15 16 // Kludges for bugs and behavior differences that can't be feature 17 // detected are enabled based on userAgent etc sniffing. 18 var userAgent = navigator.userAgent; 19 var platform = navigator.platform; 20 21 var gecko = /gecko\/\d/i.test(userAgent); 22 var ie_upto10 = /MSIE \d/.test(userAgent); 23 var ie_11up = /Trident\/(?:[7-9]|\d{2,})\..*rv:(\d+)/.exec(userAgent); 24 var edge = /Edge\/(\d+)/.exec(userAgent); 25 var ie = ie_upto10 || ie_11up || edge; 26 var ie_version = ie && (ie_upto10 ? document.documentMode || 6 : +(edge || ie_11up)[1]); 27 var webkit = !edge && /WebKit\//.test(userAgent); 28 var qtwebkit = webkit && /Qt\/\d+\.\d+/.test(userAgent); 29 var chrome = !edge && /Chrome\/(\d+)/.exec(userAgent); 30 var chrome_version = chrome && +chrome[1]; 31 var presto = /Opera\//.test(userAgent); 32 var safari = /Apple Computer/.test(navigator.vendor); 33 var mac_geMountainLion = /Mac OS X 1\d\D([8-9]|\d\d)\D/.test(userAgent); 34 var phantom = /PhantomJS/.test(userAgent); 35 36 var ios = safari && (/Mobile\/\w+/.test(userAgent) || navigator.maxTouchPoints > 2); 37 var android = /Android/.test(userAgent); 38 // This is woefully incomplete. Suggestions for alternative methods welcome. 39 var mobile = ios || android || /webOS|BlackBerry|Opera Mini|Opera Mobi|IEMobile/i.test(userAgent); 40 var mac = ios || /Mac/.test(platform); 41 var chromeOS = /\bCrOS\b/.test(userAgent); 42 var windows = /win/i.test(platform); 43 44 var presto_version = presto && userAgent.match(/Version\/(\d*\.\d*)/); 45 if (presto_version) { presto_version = Number(presto_version[1]); } 46 if (presto_version && presto_version >= 15) { presto = false; webkit = true; } 47 // Some browsers use the wrong event properties to signal cmd/ctrl on OS X 48 var flipCtrlCmd = mac && (qtwebkit || presto && (presto_version == null || presto_version < 12.11)); 49 var captureRightClick = gecko || (ie && ie_version >= 9); 50 51 function classTest(cls) { return new RegExp("(^|\\s)" + cls + "(?:$|\\s)\\s*") } 52 53 var rmClass = function(node, cls) { 54 var current = node.className; 55 var match = classTest(cls).exec(current); 56 if (match) { 57 var after = current.slice(match.index + match[0].length); 58 node.className = current.slice(0, match.index) + (after ? match[1] + after : ""); 59 } 60 }; 61 62 function removeChildren(e) { 63 for (var count = e.childNodes.length; count > 0; --count) 64 { e.removeChild(e.firstChild); } 65 return e 66 } 67 68 function removeChildrenAndAdd(parent, e) { 69 return removeChildren(parent).appendChild(e) 70 } 71 72 function elt(tag, content, className, style) { 73 var e = document.createElement(tag); 74 if (className) { e.className = className; } 75 if (style) { e.style.cssText = style; } 76 if (typeof content == "string") { e.appendChild(document.createTextNode(content)); } 77 else if (content) { for (var i = 0; i < content.length; ++i) { e.appendChild(content[i]); } } 78 return e 79 } 80 // wrapper for elt, which removes the elt from the accessibility tree 81 function eltP(tag, content, className, style) { 82 var e = elt(tag, content, className, style); 83 e.setAttribute("role", "presentation"); 84 return e 85 } 86 87 var range; 88 if (document.createRange) { range = function(node, start, end, endNode) { 89 var r = document.createRange(); 90 r.setEnd(endNode || node, end); 91 r.setStart(node, start); 92 return r 93 }; } 94 else { range = function(node, start, end) { 95 var r = document.body.createTextRange(); 96 try { r.moveToElementText(node.parentNode); } 97 catch(e) { return r } 98 r.collapse(true); 99 r.moveEnd("character", end); 100 r.moveStart("character", start); 101 return r 102 }; } 103 104 function contains(parent, child) { 105 if (child.nodeType == 3) // Android browser always returns false when child is a textnode 106 { child = child.parentNode; } 107 if (parent.contains) 108 { return parent.contains(child) } 109 do { 110 if (child.nodeType == 11) { child = child.host; } 111 if (child == parent) { return true } 112 } while (child = child.parentNode) 113 } 114 115 function activeElt(doc) { 116 // IE and Edge may throw an "Unspecified Error" when accessing document.activeElement. 117 // IE < 10 will throw when accessed while the page is loading or in an iframe. 118 // IE > 9 and Edge will throw when accessed in an iframe if document.body is unavailable. 119 var activeElement; 120 try { 121 activeElement = doc.activeElement; 122 } catch(e) { 123 activeElement = doc.body || null; 124 } 125 while (activeElement && activeElement.shadowRoot && activeElement.shadowRoot.activeElement) 126 { activeElement = activeElement.shadowRoot.activeElement; } 127 return activeElement 128 } 129 130 function addClass(node, cls) { 131 var current = node.className; 132 if (!classTest(cls).test(current)) { node.className += (current ? " " : "") + cls; } 133 } 134 function joinClasses(a, b) { 135 var as = a.split(" "); 136 for (var i = 0; i < as.length; i++) 137 { if (as[i] && !classTest(as[i]).test(b)) { b += " " + as[i]; } } 138 return b 139 } 140 141 var selectInput = function(node) { node.select(); }; 142 if (ios) // Mobile Safari apparently has a bug where select() is broken. 143 { selectInput = function(node) { node.selectionStart = 0; node.selectionEnd = node.value.length; }; } 144 else if (ie) // Suppress mysterious IE10 errors 145 { selectInput = function(node) { try { node.select(); } catch(_e) {} }; } 146 147 function doc(cm) { return cm.display.wrapper.ownerDocument } 148 149 function win(cm) { return doc(cm).defaultView
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149 } 150 151 function bind(f) { 152 var args = Array.prototype.slice.call(arguments, 1); 153 return function(){return f.apply(null, args)} 154 } 155 156 function copyObj(obj, target, overwrite) { 157 if (!target) { target = {}; } 158 for (var prop in obj) 159 { if (obj.hasOwnProperty(prop) && (overwrite !== false || !target.hasOwnProperty(prop))) 160 { target[prop] = obj[prop]; } } 161 return target 162 } 163 164 // Counts the column offset in a string, taking tabs into account. 165 // Used mostly to find indentation. 166 function countColumn(string, end, tabSize, startIndex, startValue) { 167 if (end == null) { 168 end = string.search(/[^\s\u00a0]/); 169 if (end == -1) { end = string.length; } 170 } 171 for (var i = startIndex || 0, n = startValue || 0;;) { 172 var nextTab = string.indexOf("\t", i); 173 if (nextTab < 0 || nextTab >= end) 174 { return n + (end - i) } 175 n += nextTab - i; 176 n += tabSize - (n % tabSize); 177 i = nextTab + 1; 178 } 179 } 180 181 var Delayed = function() { 182 this.id = null; 183 this.f = null; 184 this.time = 0; 185 this.handler = bind(this.onTimeout, this); 186 }; 187 Delayed.prototype.onTimeout = function (self) { 188 self.id = 0; 189 if (self.time <= +new Date) { 190 self.f(); 191 } else { 192 setTimeout(self.handler, self.time - +new Date); 193 } 194 }; 195 Delayed.prototype.set = function (ms, f) { 196 this.f = f; 197 var time = +new Date + ms; 198 if (!this.id || time < this.time) { 199 clearTimeout(this.id); 200 this.id = setTimeout(this.handler, ms); 201 this.time = time; 202 } 203 }; 204 205 function indexOf(array, elt) { 206 for (var i = 0; i < array.length; ++i) 207 { if (array[i] == elt) { return i } } 208 return -1 209 } 210 211 // Number of pixels added to scroller and sizer to hide scrollbar 212 var scrollerGap = 50; 213 214 // Returned or thrown by various protocols to signal 'I'm not 215 // handling this'. 216 var Pass = {toString: function(){return "CodeMirror.Pass"}}; 217 218 // Reused option objects for setSelection & friends 219 var sel_dontScroll = {scroll: false}, sel_mouse = {origin: "*mouse"}, sel_move = {origin: "+move"}; 220 221 // The inverse of countColumn -- find the offset that corresponds to 222 // a particular column. 223 function findColumn(string, goal, tabSize) { 224 for (var pos = 0, col = 0;;) { 225 var nextTab = string.indexOf("\t", pos); 226 if (nextTab == -1) { nextTab = string.length; } 227 var skipped = nextTab - pos; 228 if (nextTab == string.length || col + skipped >= goal) 229 { return pos + Math.min(skipped, goal - col) } 230 col += nextTab - pos; 231 col += tabSize - (col % tabSize); 232 pos = nextTab + 1; 233 if (col >= goal) { return pos } 234 } 235 } 236 237 var spaceStrs = [""]; 238 function spaceStr(n) { 239 while (spaceStrs.length <= n) 240 { spaceStrs.push(lst(spaceStrs) + " "); } 241 return spaceStrs[n] 242 } 243 244 function lst(arr) { return arr[arr.length-1] } 245 246 function map(array, f) { 247 var out = []; 248 for (var i = 0; i < array.length; i++) { out[i] = f(array[i], i); } 249 return out 250 } 251 252 function insertSorted(array, value, score) { 253 var pos = 0, priority = score(value); 254 while (pos < array.length && score(array[pos]) <= priority) { pos++; } 255 array.splice(pos, 0, value); 256 } 257 258 function nothing() {} 259 260 function createObj(base, props) { 261 var inst; 262 if (Object.create) { 263 inst = Object.create(base); 264 } else { 265 nothing.prototype = base; 266 inst = new nothing(); 267 } 268 if (props) { copyObj(props, inst); } 269 return inst 270 } 271 272 var nonASCIISingleCaseWordChar = /[\u00df\u0587\u0590-\u05f4\u0600-\u06ff\u3040-\u309f\u30a0-\u30ff\u3400-\u4db5\u4e00-\u9fcc\uac00-\ud7af]/; 273 function isWordCharBasic(ch) { 274 return /\w/.test(ch) || ch > "\x80" && 275 (ch.toUpperCase() != ch.toLowerCase() || nonASCIISingleCaseWordChar.test(ch)) 276 } 277 function isWordChar(ch, helper) { 278 if (!helper) { return isWordCharBasic(ch) } 279 if (helper.source.indexOf("\\w") > -1 && isWordCharBasic(ch)) { return true } 280 return helper.test(ch) 281 } 282 283 function isEmpty(obj) { 284 for (var n in obj) { if (obj.hasOwnProperty(n) && obj[n]) { return false } } 285 return true 286 } 287 288 // Extending unicode characters. A series of a non-extending char + 289 // any number of extending chars is treated as a single unit as far 290 // as editing and measuring is concerned. This is not fully correct, 291 // since some scripts/fonts/browsers also treat other configurations 292 // of code points as a group. 293 var extendingChars = /[\u0300-\u036f\u0483-\u0489\u0591-\u05bd\u05bf\u05c1\u05c2\u05c4\u05c5\u05c7\u0610-\u061a\u064b-\u065e\u0670\u06d6-\u06dc\u06de-\u06e4\u06e7\u06e8\u06ea-\u06ed\u0711\u0730-\u074a\u07a6-\u07b0\u07eb-\u07f3\u0816-\u0819\u081b-\u0823\u0825-\u0827\u0829-\u082d\u0900-\u0902\u093c\u0941-\u0948\u094d\u0951-\u0955\u0962\u0963\u0981\u09bc\u09be\u09c1-\u09c4\u09cd\u09d7\u09e2\u09e3\u0a01\u0a02\u0a3c\u0a41\u0a42\u0a47\u0a48\u0a4b-\u0a4d\u0a51\u0a70\u0a71\u0a75\u0a81\u0a82\u0abc\u0ac1-\u0ac5\u0ac7\u0ac8\u0acd\u0ae2\u0ae3\u0b01\u0b3c\u0b3e\u0b3f\u0b41-\u0b44\u0b4d\u0b56\u0b57\u0b62\u0b63\u0b82\u0bbe\u0bc0\u0bcd\u0bd7\u0c3e-\u0c40\u0c46-\u0c48\u0c4a-\u0c4d\u0c55\u0c56\u0c62\u0c63\u0cbc\u0cbf\u0cc2\u0cc6\u0ccc\u0ccd\u0cd5\u0cd6\u0ce2\u0ce3\u0d3e\u0d41-\u0d44\u0d4d\u0d57\u0d62\u0d63\u0dca\u0dcf\u0dd2-\u0dd4\u0dd6\u0ddf\u0e31\u0e34-\u0e3a\u0e47-\u0e4e\u0eb1\u0eb4-\u0eb9\u0ebb\u0ebc\u0ec8-\u0ecd\u0f18\u0f19\u0f35\u0f37\u0f39\u0f71-\u0f7e\u0f80-\u0f84\u0f86\u0f87\u0f90-\u0f97\u0f99-\u0fbc\u0fc6\u102d-\u1030\u1032-\u1037\u1039\u103a\u103d\u103e\u1058\u1059\u105e-\u1060\u1071-\u1074\u1082\u1085\u1086\u108d\u109d\u135f\u1712-\u1714\u1732-\u1734\u1752\u1753\u1772\u1773\u17b7-\u17bd\u17c6\u17c9-\u17d3\u17dd\u180b-\u180d\u18a9\u1920-\u1922\u1927\u1928\u1932\u1939-\u193b\u1a17\u1a18\u1a56\u1a58-\u1a5e\u1a60\u1a62\u1a65-\u1a6c\u1a73-\u1a7c\u1a7f\u1b00-\u1b03\u1b34\u1b36-\u1b3a\u1b3c\u1b42\u1b6b-\u1b73\u1b80\u1b81\u1ba2-\u1ba5\u1ba8\u1ba9\u1c2c-\u1c33\u1c36\u1c37\u1cd0-\u1cd2\u1cd4-\u1ce0\u1ce2-\u1ce8\u1ced\u1dc0-\u1de6\u1dfd-\u1dff\u200c\u200d\u20d0-\u20f0\u2cef-\u2cf1\u2de0-\u2dff\u302a-\u302f\u3099\u309a\ua66f-\ua672\ua67c\ua67d\ua6f0\ua6f1\ua802\ua806\ua80b\ua825\ua826\ua8c4\ua8e0-\ua8f1\ua926-\ua92d\ua947-\ua951\ua980-\ua982\ua9b3\ua9b6-\ua9b9\ua9bc\uaa29-\uaa2e\uaa31\uaa32\uaa35\uaa36\uaa43\uaa4c\uaab0\uaab2-\uaab4\uaab7\uaab8\uaabe\uaabf\uaac1\uabe5\uabe8\uabed\udc00-\udfff\ufb1e\ufe00-\ufe0f\ufe20-\ufe26\uff9e\uff9f]/; 294 function isExtendingChar(ch) { return ch.charCodeAt(0) >= 768 && extendingChars.test(ch) } 295 296 // Returns a number from the range [`0`; `str.length`] unless `pos` is outside that range. 297 function skipExtendingChars(str, pos, dir) { 298 while ((dir < 0 ? pos > 0 : pos < str.length) && isExtendingChar(str.charAt(pos))) { pos += dir; } 299 return pos 300 } 301 302 // Returns the value from the range [`from`; `to`] that satisfies 303 // `pred` and is closest to `from`. Assumes that at least `to` 304 // satisfies `pred`. Supports `from` being greater than `to`. 305 function findFirst(pred, from, to) { 306 // At any point we are certain `to` satisfies `pred`, don't know 307 // whether `from` does. 308 var dir = from > to ? -1 : 1; 309 for (;;) { 310 if (from == to) { return from } 311 var midF = (from + to) / 2, mid = dir < 0 ? Math.ceil(midF) : Math.floor(midF); 312 if (mid == from) { return pred(mid) ? from : to } 313 if (pred(mid)) { to = mid; } 314 else { from = mid + dir; } 315 } 316 } 317 318 // BIDI HELPERS 319 320 function iterateBidiSections(order, from, to, f) { 321 if (!order) { return f(from, to, "ltr", 0) } 322 var found = false; 323 for (var i = 0; i < order.length; ++i) { 324 var part = order[i]; 325 if (part.from < to && part.to > from || from == to && part.to == from) { 326 f(Math.max(part.from, from), Math.min(part.to, to), part.level == 1 ? "rtl" : "ltr", i); 327 found = true; 328 } 329 } 330 if (!found) { f(from, to, "ltr"); } 331 } 332 333 var bidiOther = null; 334 function getBidiPartAt(order, ch, sticky) { 335 var found; 336 bidiOther = null; 337 for (var i = 0; i < order.length; ++i) { 338 var cur = order[i]; 339 if (cur.from < ch && cur.to > ch) { return i } 340 if (cur.to == ch) { 341 if (cur.from != cur.to && sticky == "before") { found = i; } 342 else { bidiOther = i; } 343 } 344 if (cur.from == ch) { 345 if (cur.from != cur.to && sticky != "before") { found = i; } 346 else { bidiOther = i; } 347 } 348 } 349 return found != null ? found : bidiOther 350 } 351 352 // Bidirectional ordering algorithm 353 // See http://unicode.org/reports/tr9/tr9-13.html for the algorithm 354 // that this (partially) implements. 355 356 // One-char codes used for character types: 357 // L (L): Left-to-Right 358 // R (R): Right-to-Left 359 // r (AL): Right-to-Left Arabic 360 // 1 (EN): European Number 361 // + (ES): European Number Separator 362 // % (ET): European Number Terminator 363 // n (AN): Arabic Number 364 // , (CS): Common Number Separator 365 // m (NSM): Non-Spacing Mark 366 // b (BN): Boundary Neutral 367 // s (B): Paragraph Separator 368 // t (S): Segment Separator 369 // w (WS): Whitespace 370 // N (ON): Other Neutrals 371 372 // Returns null if characters are ordered as they appear 373 // (left-to-right), or an array of sections ({from, to, level} 374 // objects) in the order in which they occur visually. 375 var bidiOrdering = (function() { 376 // Character types for codepoints 0 to 0xff 377 var lowTypes = "bbbbbbbbbtstwsbbbbbbbbbbbbbbssstwNN%%%NNNNNN,N,N1111111111NNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNbbbbbbsbbbbbbbbbbbbbbbbbbbbbbbbbb,N%%%%NNNNLNNNNN%%11NLNNN1LNNNNNLLLLLLLLLLLLLLLLLLLLLLLNLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLN"; 378 // Character types for codepoints 0x600 to 0x6f9 379 var arabicTypes = "nnnnnnNNr%%r,rNNmmmmmmmmmmmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmmmmmmmmnnnnnnnnnn%nnrrrmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmnNmmmmmmrrmmNmmmmrr1111111111"; 380 function charType(code) { 381 if (code <= 0xf7) { return lowTypes.charAt(code) } 382 else if (0x590 <= code && code <= 0x5f4) { return "R" } 383 else if (0x600 <= code && code <= 0x6f9) { return arabicTypes.charAt(code - 0x600) } 384 else if (0x6ee <= code && code <= 0x8ac) { return "r" } 385 else if (0x2000 <= code && code <= 0x200b) { return "w" } 386 else if (code == 0x200c) { return "b" } 387 else { return "L" } 388 } 389 390 var bidiRE = /[\u0590-\u05f4\u0600-\u06ff\u0700-\u08ac]/; 391 var isNeutral = /[stwN]/, isStrong = /[LRr]/, countsAsLeft = /[Lb1n]/, countsAsNum = /[1n]/; 392 393 function BidiSpan(level, from, to) { 394 this.level = level; 395 this.from = from; this.to = to; 396 } 397 398 return function(str, direction) { 399 var outerType = direction == "ltr" ? "L" : "R"; 400 401 if (str.length == 0 || direction == "ltr" && !bidiRE.test(str)) { return false } 402 var len = str.length, types = []; 403 for (var i = 0; i < len; ++i) 404 { types.push(charType(str.charCodeAt(i))); } 405 406 // W1. Examine each non-spacing mark (NSM) in the level run, and 407 // change the type of the NSM to the type of the previous 408 // character. If the NSM is at the start of the level run, it will 409 // get the type of sor. 410 for (var i$1 = 0, prev = outerType; i$1 < len; ++i$1) { 411 var type = types[i$1]; 412 if (type == "m") { types[i$1] = prev; } 413 else { prev = type; } 414 } 415 416 // W2. Search backwards from each instance of a European number 417 // until the first strong type (R, L, AL, or sor) is found. If an 418 // AL is found, change the type of the European number to Arabic 419 // number. 420 // W3. Change all ALs to R. 421 for (var i$2 = 0, cur = outerType; i$2 < len; ++i$2) { 422 var type$1 = types[i$2]; 423 if (type$1 == "1" && cur == "r") { types[i$2] = "n"; } 424 else if (isStrong.test(type$1)) { cur = type$1; if (type$1 == "r") { types[i$2] = "R"; } } 425 } 426 427 // W4. A single European separator between two European numbers 428 // changes to a European number. A single common separator between 429 // two numbers of the same type changes to that type. 430 for (var i$3 = 1, prev$1 = types[0]; i$3 < len - 1; ++i$3) { 431 var type$2 = types[i$3]; 432 if (type$2 == "+" && prev$1 == "1" && types[i$3+1] == "1") { types[i$3] = "1"; } 433 else if (type$2 == "," && prev$1 == types[i$3+1] && 434 (prev$1 == "1" || prev$1 == "n")) { types[i$3] = prev$1; } 435 prev$1 = type$2; 436 } 437 438 // W5. A sequence of European terminators adjacent to European 439 // numbers changes to all European numbers. 440 // W6. Otherwise, separators and terminators change to Other 441 // Neutral. 442 for (var i$4 = 0; i$4 < len; ++i$4) { 443 var type$3 = types[i$4]; 444 if (type$3 == ",") { types[i$4] = "N"; } 445 else if (type$3 == "%") { 446 var end = (void 0); 447 for (end = i$4 + 1; end < len && types[end] == "%"; ++end) {} 448 var replace = (i$4 && types[i$4-1] == "!") || (end < len && types[end] == "1") ? "1" : "N"; 449 for (var j = i$4; j < end; ++j) { types[j] = replace; } 450 i$4 = end - 1; 451 } 452 } 453 454 // W7. Search backwards from each instance of a European number 455 // until the first strong type (R, L, or sor) is found. If an L is 456 // found, then change the type of the European number to L. 457 for (var i$5 = 0, cur$1 = outerType; i$5 < len; ++i$5) { 458 var type$4 = types[i$5]; 459 if (cur$1 == "L" && type$4 == "1") { types[i$5] = "L"; } 460 else if (isStrong.test(type$4)) { cur$1 = type$4; } 461 } 462 463 // N1. A sequence of neutrals takes the direction of the 464 // surrounding strong text if the text on both sides has the same 465 // direction. European and Arabic numbers act as if they were R in 466 // terms of their influence on neutrals. Start-of-level-run (sor) 467 // and end-of-level-run (eor) are used at level run boundaries. 468 // N2. Any remaining neutrals take the embedding direction. 469 for (var i$6 = 0; i$6 < len; ++i$6) { 470 if (isNeutral.test(types[i$6])) { 471 var end$1 = (void 0); 472 for (end$1 = i$6 + 1; end$1 < len && isNeutral.test(types[end$1]); ++end$1) {} 473 var before = (i$6 ? types[i$6-1] : outerType) == "L"; 474 var after = (end$1 < len ? types[end$1] : outerType) == "L"; 475 var replace$1 = before == after ? (before ? "L" : "R") : outerType; 476 for (var j$1 = i$6; j$1 < end$1; ++j$1) { types[j$1] = replace$1; } 477 i$6 = end$1 - 1; 478 } 479 } 480 481 // Here we depart from the documented algorithm, in order to avoid 482 // building up an actual levels array. Since there are only three 483 // levels (0, 1, 2) in an implementation that doesn't take 484 // explicit embedding into account, we can build up the order on 485 // the fly, without following the level-based algorithm. 486 var order = [], m; 487 for (var i$7 = 0; i$7 < len;) { 488 if (countsAsLeft.test(types[i$7])) { 489 var start = i$7; 490 for (++i$7; i$7 < len && countsAsLeft.test(types[i$7]); ++i$7) {} 491 order.push(new BidiSpan(0, start, i$7)); 492 } else { 493 var pos = i$7, at = order.length, isRTL = direction == "rtl" ? 1 : 0; 494 for (++i$7; i$7 < len && types[i$7] != "L"; ++i$7) {} 495 for (var j$2 = pos; j$2 < i$7;) { 496 if (countsAsNum.test(types[j$2])) { 497 if (pos < j$2) { order.splice(at, 0, new BidiSpan(1, pos, j$2)); at += isRTL; } 498 var nstart = j$2; 499 for (++j$2; j$2 < i$7 && countsAsNum.test(types[j$2]); ++j$2) {} 500 order.splice(at, 0, new BidiSpan(2, nstart, j$2)); 501 at += isRTL; 502 pos = j$2; 503 } else { ++j$2; } 504 } 505 if (pos < i$7) { order.splice(at, 0, new BidiSpan(1, pos, i$7)); } 506 } 507 } 508 if (direction == "ltr") { 509 if (order[0].level == 1 && (m = str.match(/^\s+/))) { 510 order[0].from = m[0].length; 511 order.unshift(new BidiSpan(0, 0, m[0].length)); 512 } 513 if (lst(order).level == 1 && (m = str.match(/\s+$/))) { 514 lst(order).to -= m[0].length; 515 order.push(new BidiSpan(0, len - m[0].length, len)); 516 } 517 } 518 519 return direction == "rtl" ? order.reverse() : order 520 } 521 })(); 522 523 // Get the bidi ordering for the given line (and cache it). Returns 524 // false for lines that are fully left-to-right, and an array of 525 // BidiSpan objects otherwise. 526 function getOrder(line, direction) { 527 var order = line.order; 528 if (order == null) { order = line.order = bidiOrdering(line.text, direction); } 529 return order 530 } 531 532 // EVENT HANDLING 533 534 // Lightweight event framework. on/off also work on DOM nodes, 535 // registering native DOM handlers. 536 537 var noHandlers = []; 538 539 var on = function(emitter, type, f) { 540 if (emitter.addEventListener) { 541 emitter.addEventListener(type, f, false); 542 } else if (emitter.attachEvent) { 543 emitter.attachEvent("on" + type, f); 544 } else { 545 var map = emitter._handlers || (emitter._handlers = {}); 546 map[type] = (map[type] || noHandlers).concat(f); 547 } 548 }; 549 550 function getHandlers(emitter, type) { 551 return emitter._handlers && emitter._handlers[type] || noHandlers 552 } 553 554 function off(emitter, type, f) { 555 if (emitter.removeEventListener) { 556 emitter.removeEventListener(type, f, false); 557 } else if (emitter.detachEvent) { 558 emitter.detachEvent("on" + type, f); 559 } else { 560 var map = emitter._handlers, arr = map && map[type]; 561 if (arr) { 562 var index = indexOf(arr, f); 563 if (index > -1) 564 { map[type] = arr.slice(0, index).concat(arr.slice(index + 1)); } 565 } 566 } 567 } 568 569 function signal(emitter, type /*, values...*/) { 570 var handlers = getHandlers(emitter, type); 571 if (!handlers.length) { return } 572 var args = Array.prototype.slice.call(arguments, 2); 573 for (var i = 0; i < handlers.length; ++i) { handlers[i].apply(null, args); } 574 } 575 576 // The DOM events that CodeMirror handles can be overridden by 577 // registering a (non-DOM) handler on the editor for the event name, 578 // and preventDefault-ing the event in that handler. 579 function signalDOMEvent(cm, e, override) { 580 if (typeof e == "string") 581 { e = {type: e, preventDefault: function() { this.defaultPrevented = true; }}; } 582 signal(cm, override || e.type, cm, e); 583 return e_defaultPrevented(e) || e.codemirrorIgnore 584 } 585 586 function signalCursorActivity(cm) { 587 var arr = cm._handlers && cm._handlers.cursorActivity; 588 if (!arr) { return } 589 var set = cm.curOp.cursorActivityHandlers || (cm.curOp.cursorActivityHandlers = []); 590 for (var i = 0; i < arr.length; ++i) { if (indexOf(set, arr[i]) == -1) 591 { set.push(arr[i]); } } 592 } 593 594 function hasHandler(emitter, type) { 595 return getHandlers(emitter, type).length > 0 596 } 597 598 // Add on and off methods to a constructor's prototype, to make 599 // registering events on such objects more convenient. 600 function eventMixin(ctor) { 601 ctor.prototype.on = function(type, f) {on(this, type, f);}; 602 ctor.prototype.off = function(type, f) {off(this, type, f);}; 603 } 604 605 // Due to the fact that we still support jurassic IE versions, some 606 // compatibility wrappers are needed. 607 608 function e_preventDefault(e) { 609 if (e.preventDefault) { e.preventDefault(); } 610 else { e.returnValue = false; } 611 } 612 function e_stopPropagation(e) { 613 if (e.stopPropagation) { e.stopPropagation(); } 614 else { e.cancelBubble = true; } 615 } 616 function e_defaultPrevented(e) { 617 return e.defaultPrevented != null ? e.defaultPrevented : e.returnValue == false 618 } 619 function e_stop(e) {e_preventDefault(e); e_stopPropagation(e);} 620 621 function e_target(e) {return e.target || e.srcElement} 622 function e_button(e) { 623 var b = e.which; 624 if (b == null) { 625 if (e.button & 1) { b = 1; } 626 else if (e.button & 2) { b = 3; } 627 else if (e.button & 4) { b = 2; } 628 } 629 if (mac && e.ctrlKey && b == 1) { b = 3; } 630 return b 631 } 632 633 // Detect drag-and-drop 634 var dragAndDrop = function() { 635 // There is *some* kind of drag-and-drop support in IE6-8, but I 636 // couldn't get it to work yet. 637 if (ie && ie_version < 9) { return false } 638 var div = elt('div'); 639 return "draggable" in div || "dragDrop" in div 640 }(); 641 642 var zwspSupported; 643 function zeroWidthElement(measure) { 644 if (zwspSupported == null) { 645 var test = elt("span", "\u200b"); 646 removeChildrenAndAdd(measure, elt("span", [test, document.createTextNode("x")])); 647 if (measure.firstChild.offsetHeight != 0) 648 { zwspSupported = test.offsetWidth <= 1 && test.offsetHeight > 2 && !(ie && ie_version < 8); } 649 } 650 var node = zwspSupported ? elt("span", "\u200b") : 651 elt("span", "\u00a0", null, "display: inline-block; width: 1px; margin-right: -1px"); 652 node.setAttribute("cm-text", ""); 653 return node 654 } 655 656 // Feature-detect IE's crummy client rect reporting for bidi text 657 var badBidiRects; 658 function hasBadBidiRects(measure) { 659 if (badBidiRects != null) { return badBidiRects } 660 var txt = removeChildrenAndAdd(measure, document.createTextNode("A\u062eA")); 661 var r0 = range(txt, 0, 1).getBoundingClientRect(); 662 var r1 = range(txt, 1, 2).getBoundingClientRect(); 663 removeChildren(measure); 664 if (!r0 || r0.left == r0.right) { return false } // Safari returns null in some cases (#2780) 665 return badBidiRects = (r1.right - r0.right < 3) 666 } 667 668 // See if "".split is the broken IE version, if so, provide an 669 // alternative way to split lines. 670 var splitLinesAuto = "\n\nb".split(/\n/).length != 3 ? function (string) { 671 var pos = 0, result = [], l = string.length; 672 while (pos <= l) { 673 var nl = string.indexOf("\n", pos); 674 if (nl == -1) { nl = string.length; } 675 var line = string.slice(pos, string.charAt(nl - 1) == "\r" ? nl - 1 : nl); 676 var rt = line.indexOf("\r"); 677 if (rt != -1) { 678 result.push(line.slice(0, rt)); 679 pos += rt + 1; 680 } else { 681 result.push(line); 682 pos = nl + 1; 683 } 684 } 685 return result 686 } : function (string) { return string.split(/\r\n?|\n/); }; 687 688 var hasSelection = window.getSelection ? function (te) { 689 try { return te.selectionStart != te.selectionEnd } 690 catch(e) { return false } 691 } : function (te) { 692 var range; 693 try {range = te.ownerDocument.selection.createRange();} 694 catch(e) {} 695 if (!range || range.parentElement() != te) { return false } 696 return range.compareEndPoints("StartToEnd", range) != 0 697 }; 698 699 var hasCopyEvent = (function () { 700 var e = elt("div"); 701 if ("oncopy" in e) { return true } 702 e.setAttribute("oncopy", "return;"); 703 return typeof e.oncopy == "function" 704 })(); 705 706 var badZoomedRects = null; 707 function hasBadZoomedRects(measure) { 708 if (badZoomedRects != null) { return badZoomedRects } 709 var node = removeChildrenAndAdd(measure, elt("span", "x")); 710 var normal = node.getBoundingClientRect(); 711 var fromRange = range(node, 0, 1).getBoundingClientRect(); 712 return badZoomedRects = Math.abs(normal.left - fromRange.left) > 1 713 } 714 715 // Known modes, by name and by MIME 716 var modes = {}, mimeModes = {}; 717 718 // Extra arguments are stored as the mode's dependencies, which is 719 // used by (legacy) mechanisms like loadmode.js to automatically 720 // load a mode. (Preferred mechanism is the require/define calls.) 721 function defineMode(name, mode) { 722 if (arguments.length > 2) 723 { mode.dependencies = Array.prototype.slice.call(arguments, 2); } 724 modes[name] = mode; 725 } 726 727 function defineMIME(mime, spec) { 728 mimeModes[mime] = spec; 729 } 730 731 // Given a MIME type, a {name, ...options} config object, or a name 732 // string, return a mode config object. 733 function resolveMode(spec) { 734 if (typeof spec == "string" && mimeModes.hasOwnProperty(spec)) { 735 spec = mimeModes[spec]; 736 } else if (spec && typeof spec.name == "string" && mimeModes.hasOwnProperty(spec.name)) { 737 var found = mimeModes[spec.name]; 738 if (typeof found == "string") { found = {name: found}; } 739 spec = createObj(found, spec); 740 spec.name = found.name; 741 } else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+xml$/.test(spec)) { 742 return resolveMode("application/xml") 743 } else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+json$/.test(spec)) { 744 return resolveMode("application/json") 745 } 746 if (typeof spec == "string") { return {name: spec} } 747 else { return spec || {name: "null"} } 748 } 749 750 // Given a mode spec (anything that resolveMode accepts), find and 751 // initialize an actual mode object. 752 function getMode(options, spec) { 753 spec = resolveMode(spec); 754 var mfactory = modes[spec.name]; 755 if (!mfactory) { return getMode(options, "text/plain") } 756 var modeObj = mfactory(options, spec); 757 if (modeExtensions.hasOwnProperty(spec.name)) { 758 var exts = modeExtensions[spec.name]; 759 for (var prop in exts) { 760 if (!exts.hasOwnProperty(prop)) { continue } 761 if (modeObj.hasOwnProperty(prop)) { modeObj["_" + prop] = modeObj[prop]; } 762 modeObj[prop] = exts[prop]; 763 } 764 } 765 modeObj.name = spec.name; 766 if (spec.helperType) { modeObj.helperType = spec.helperType; } 767 if (spec.modeProps) { for (var prop$1 in spec.modeProps) 768 { modeObj[prop$1] = spec.modeProps[prop$1]; } } 769 770 return modeObj 771 } 772 773 // This can be used to attach properties to mode objects from 774 // outside the actual mode definition. 775 var modeExtensions = {}; 776 function extendMode(mode, properties) { 777 var exts = modeExtensions.hasOwnProperty(mode) ? modeExtensions[mode] : (modeExtensions[mode] = {}); 778 copyObj(properties, exts); 779 } 780 781 function copyState(mode, state) { 782 if (state === true) { return state } 783 if (mode.copyState) { return mode.copyState(state) } 784 var nstate = {}; 785 for (var n in state) { 786 var val = state[n]; 787 if (val instanceof Array) { val = val.concat([]); } 788 nstate[n] = val; 789 } 790 return nstate 791 } 792 793 // Given a mode and a state (for that mode), find the inner mode and 794 // state at the position that the state refers to. 795 function innerMode(mode, state) { 796 var info; 797 while (mode.innerMode) { 798 info = mode.innerMode(state); 799 if (!info || info.mode == mode) { break } 800 state = info.state; 801 mode = info.mode; 802 } 803 return info || {mode: mode, state: state} 804 } 805 806 function startState(mode, a1, a2) { 807 return mode.startState ? mode.startState(a1, a2) : true 808 } 809 810 // STRING STREAM 811 812 // Fed to the mode parsers, provides helper functions to make 813 // parsers more succinct. 814 815 var StringStream = function(string, tabSize, lineOracle) { 816 this.pos = this.start = 0; 817 this.string = string; 818 this.tabSize = tabSize || 8; 819 this.lastColumnPos = this.lastColumnValue = 0; 820 this.lineStart = 0; 821 this.lineOracle = lineOracle; 822 }; 823 824 StringStream.prototype.eol = function () {return this.pos >= this.string.length}; 825 StringStream.prototype.sol = function () {return this.pos == this.lineStart}; 826 StringStream.prototype.peek = function () {return this.string.charAt(this.pos) || undefined}; 827 StringStream.prototype.next = function () { 828 if (this.pos < this.string.length) 829 { return this.string.charAt(this.pos++) } 830 }; 831 StringStream.prototype.eat = function (match) { 832 var ch = this.string.charAt(this.pos); 833 var ok; 834 if (typeof match == "string") { ok = ch == match; } 835 else { ok = ch && (match.test ? match.test(ch) : match(ch)); } 836 if (ok) {++this.pos; return ch} 837 }; 838 StringStream.prototype.eatWhile = function (match) { 839 var start = this.pos; 840 while (this.eat(match)){} 841 return this.pos > start 842 }; 843 StringStream.prototype.eatSpace = function () { 844 var start = this.pos; 845 while (/[\s\u00a0]/.test(this.string.charAt(this.pos))) { ++this.pos; } 846 return this.pos > start 847 }; 848 StringStream.prototype.skipToEnd = function () {this.pos = this.string.length;}; 849 StringStream.prototype.skipTo = function (ch) { 850 var found = this.string.indexOf(ch, this.pos); 851 if (found > -1) {this.pos = found; return true} 852 }; 853 StringStream.prototype.backUp = function (n) {this.pos -= n;}; 854 StringStream.prototype.column = function () { 855 if (this.lastColumnPos < this.start) { 856 this.lastColumnValue = countColumn(this.string, this.start, this.tabSize, this.lastColumnPos, this.lastColumnValue); 857 this.lastColumnPos = this.start; 858 } 859 return this.lastColumnValue - (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0) 860 }; 861 StringStream.prototype.indentation = function () { 862 return countColumn(this.string, null, this.tabSize) - 863 (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0) 864 }; 865 StringStream.prototype.match = function (pattern, consume, caseInsensitive) { 866 if (typeof pattern == "string") { 867 var cased = function (str) { return caseInsensitive ? str.toLowerCase() : str; }; 868 var substr = this.string.substr(this.pos, pattern.length); 869 if (cased(substr) == cased(pattern)) { 870 if (consume !== false) { this.pos += pattern.length; } 871 return true 872 } 873 } else { 874 var match = this.string.slice(this.pos).match(pattern); 875 if (match && match.index > 0) { return null } 876 if (match && consume !== false) { this.pos += match[0].length; } 877 return match 878 } 879 }; 880 StringStream.prototype.current = function (){return this.string.slice(this.start, this.pos)}; 881 StringStream.prototype.hideFirstChars = function (n, inner) { 882 this.lineStart += n; 883 try { return inner() } 884 finally { this.lineStart -= n; } 885 }; 886 StringStream.prototype.lookAhead = function (n) { 887 var oracle = this.lineOracle; 888 return oracle && oracle.lookAhead(n) 889 }; 890 StringStream.prototype.baseToken = function () { 891 var oracle = this.lineOracle; 892 return oracle && oracle.baseToken(this.pos) 893 }; 894 895 // Find the line object corresponding to the given line number. 896 function getLine(doc, n) { 897 n -= doc.first; 898 if (n < 0 || n >= doc.size) { throw new Error("There is no line " + (n + doc.first) + " in the document.") } 899 var chunk = doc; 900 while (!chunk.lines) { 901 for (var i = 0;; ++i) { 902 var child = chunk.children[i], sz = child.chunkSize(); 903 if (n < sz) { chunk = child; break } 904 n -= sz; 905 } 906 } 907 return chunk.lines[n] 908 } 909 910 // Get the part of a document between two positions, as an array of 911 // strings. 912 function getBetween(doc, start, end) { 913 var out = [], n = start.line; 914 doc.iter(start.line, end.line + 1, function (line) { 915 var text = line.text; 916 if (n == end.line) { text = text.slice(0, end.ch); } 917 if (n == start.line) { text = text.slice(start.ch); } 918 out.push(text); 919 ++n; 920 }); 921 return out 922 } 923 // Get the lines between from and to, as array of strings. 924 function getLines(doc, from, to) { 925 var out = []; 926 doc.iter(from, to, function (line) { out.push(line.text); }); // iter aborts when callback returns truthy value 927 return out 928 } 929 930 // Update the height of a line, propagating the height change 931 // upwards to parent nodes. 932 function updateLineHeight(line, height) { 933 var diff = height - line.height; 934 if (diff) { for (var n = line; n; n = n.parent) { n.height += diff; } } 935 } 936 937 // Given a line object, find its line number by walking up through 938 // its parent links. 939 function lineNo(line) { 940 if (line.parent == null) { return null } 941 var cur = line.parent, no = indexOf(cur.lines, line); 942 for (var chunk = cur.parent; chunk; cur = chunk, chunk = chunk.parent) { 943 for (var i = 0;; ++i) { 944 if (chunk.children[i] == cur) { break } 945 no += chunk.children[i].chunkSize(); 946 } 947 } 948 return no + cur.first 949 } 950 951 // Find the line at the given vertical position, using the height 952 // information in the document tree. 953 function lineAtHeight(chunk, h) { 954 var n = chunk.first; 955 outer: do { 956 for (var i$1 = 0; i$1 < chunk.children.length; ++i$1) { 957 var child = chunk.children[i$1], ch = child.height; 958 if (h < ch) { chunk = child; continue outer } 959 h -= ch; 960 n += child.chunkSize(); 961 } 962 return n 963 } while (!chunk.lines) 964 var i = 0; 965 for (; i < chunk.lines.length; ++i) { 966 var line = chunk.lines[i], lh = line.height; 967 if (h < lh) { break } 968 h -= lh; 969 } 970 return n + i 971 } 972 973 function isLine(doc, l) {return l >= doc.first && l < doc.first + doc.size} 974 975 function lineNumberFor(options, i) { 976 return String(options.lineNumberFormatter(i + options.firstLineNumber)) 977 } 978 979 // A Pos instance represents a position within the text. 980 function Pos(line, ch, sticky) { 981 if ( sticky === void 0 ) sticky = null; 982 983 if (!(this instanceof Pos)) { return new Pos(line, ch, sticky) } 984 this.line = line; 985 this.ch = ch; 986 this.sticky = sticky; 987 } 988 989 // Compare two positions, return 0 if they are the same, a negative 990 // number when a is less, and a positive number otherwise. 991 function cmp(a, b) { return a.line - b.line || a.ch - b.ch } 992 993 function equalCursorPos(a, b) { return a.sticky == b.sticky && cmp(a, b) == 0 } 994 995 function copyPos(x) {return Pos(x.line, x.ch)} 996 function maxPos(a, b) { return cmp(a, b) < 0 ? b : a } 997 function minPos(a, b) { return cmp(a, b) < 0 ? a : b } 998 999 // Most of the external API clips given positions to make sure they 1000 // actually exist within the document. 1001 function clipLine(doc, n) {return Math.max(doc.first, Math.min(n, doc.first + doc.size - 1))} 1002 function clipPos(doc, pos) { 1003 if (pos.line < doc.first) { return Pos(doc.first, 0) } 1004 var last = doc.first + doc.size - 1; 1005 if (pos.line > last) { return Pos(last, getLine(doc, last).text.length) } 1006 return clipToLen(pos, getLine(doc, pos.line).text.length) 1007 } 1008 function clipToLen(pos, linelen) { 1009 var ch = pos.ch; 1010 if (ch == null || ch > linelen) { return Pos(pos.line, linelen) } 1011 else if (ch < 0) { return Pos(pos.line, 0) } 1012 else { return pos } 1013 } 1014 function clipPosArray(doc, array) { 1015 var out = []; 1016 for (var i = 0; i < array.length; i++) { out[i] = clipPos(doc, array[i]); } 1017 return out 1018 } 1019 1020 var SavedContext = function(state, lookAhead) { 1021 this.state = state; 1022 this.lookAhead = lookAhead; 1023 }; 1024 1025 var Context = function(doc, state, line, lookAhead) { 1026 this.state = state; 1027 this.doc = doc; 1028 this.line = line; 1029 this.maxLookAhead = lookAhead || 0; 1030 this.baseTokens = null; 1031 this.baseTokenPos = 1; 1032 }; 1033 1034 Context.prototype.lookAhead = function (n) { 1035 var line = this.doc.getLine(this.line + n); 1036 if (line != null && n > this.maxLookAhead) { this.maxLookAhead = n; } 1037 return line 1038 }; 1039 1040 Context.prototype.baseToken = function (n) { 1041 if (!this.baseTokens) { return null } 1042 while (this.baseTokens[this.baseTokenPos] <= n) 1043 { this.baseTokenPos += 2; } 1044 var type = this.baseTokens[this.baseTokenPos + 1]; 1045 return {type: type && type.replace(/( |^)overlay .*/, ""), 1046 size: this.baseTokens[this.baseTokenPos] - n} 1047 }; 1048 1049 Context.prototype.nextLine = function () { 1050 this.line++; 1051 if (this.maxLookAhead > 0) { this.maxLookAhead--; } 1052 }; 1053 1054 Context.fromSaved = function (doc, saved, line) { 1055 if (saved instanceof SavedContext) 1056 { return new Context(doc, copyState(doc.mode, saved.state), line, saved.lookAhead) } 1057 else 1058 { return new Context(doc, copyState(doc.mode, saved), line) } 1059 }; 1060 1061 Context.prototype.save = function (copy) { 1062 var state = copy !== false ? copyState(this.doc.mode, this.state) : this.state; 1063 return this.maxLookAhead > 0 ? new SavedContext(state, this.maxLookAhead) : state 1064 }; 1065 1066 1067 // Compute a style array (an array starting with a mode generation 1068 // -- for invalidation -- followed by pairs of end positions and 1069 // style strings), which is used to highlight the tokens on the 1070 // line. 1071 function highlightLine(cm, line, context, forceToEnd) { 1072 // A styles array always starts with a number identifying the 1073 // mode/overlays that it is based on (for easy invalidation). 1074 var st = [cm.state.modeGen], lineClasses = {}; 1075 // Compute the base array of styles 1076 runMode(cm, line.text, cm.doc.mode, context, function (end, style) { return st.push(end, style); }, 1077 lineClasses, forceToEnd); 1078 var state = context.state; 1079 1080 // Run overlays, adjust style array. 1081 var loop = function ( o ) { 1082 context.baseTokens = st; 1083 var overlay = cm.state.overlays[o], i = 1, at = 0; 1084 context.state = true; 1085 runMode(cm, line.text, overlay.mode, context, function (end, style) { 1086 var start = i; 1087 // Ensure there's a token end at the current position, and that i points at it 1088 while (at < end) { 1089 var i_end = st[i]; 1090 if (i_end > end) 1091 { st.splice(i, 1, end, st[i+1], i_end); } 1092 i += 2; 1093 at = Math.min(end, i_end); 1094 } 1095 if (!style) { return } 1096 if (overlay.opaque) { 1097 st.splice(start, i - start, end, "overlay " + style); 1098 i = start + 2; 1099 } else { 1100 for (; start < i; start += 2) { 1101 var cur = st[start+1]; 1102 st[start+1] = (cur ? cur + " " : "") + "overlay " + style; 1103 } 1104 } 1105 }, lineClasses); 1106 context.state = state; 1107 context.baseTokens = null; 1108 context.baseTokenPos = 1; 1109 }; 1110 1111 for (var o = 0; o < cm.state.overlays.length; ++o) loop( o ); 1112 1113 return {styles: st, classes: lineClasses.bgClass || lineClasses.textClass ? lineClasses : null} 1114 } 1115 1116 function getLineStyles(cm, line, updateFrontier) { 1117 if (!line.styles || line.styles[0] != cm.state.modeGen) { 1118 var context = getContextBefore(cm, lineNo(line)); 1119 var resetState = line.text.length > cm.options.maxHighlightLength && copyState(cm.doc.mode, context.state); 1120 var result = highlightLine(cm, line, context); 1121 if (resetState) { context.state = resetState; } 1122 line.stateAfter = context.save(!resetState); 1123 line.styles = result.styles; 1124 if (result.classes) { line.styleClasses = result.classes; } 1125 else if (line.styleClasses) { line.styleClasses = null; } 1126 if (updateFrontier === cm.doc.highlightFrontier) 1127 { cm.doc.modeFrontier = Math.max(cm.doc.modeFrontier, ++cm.doc.highlightFrontier); } 1128 } 1129 return line.styles 1130 } 1131 1132 function getContextBefore(cm, n, precise) { 1133 var doc = cm.doc, display = cm.display; 1134 if (!doc.mode.startState) { return new Context(doc, true, n) } 1135 var start = findStartLine(cm, n, precise); 1136 var saved = start > doc.first && getLine(doc, start - 1).stateAfter; 1137 var context = saved ? Context.fromSaved(doc, saved, start) : new Context(doc, startState(doc.mode), start); 1138 1139 doc.iter(start, n, function (line) { 1140 processLine(cm, line.text, context); 1141 var pos = context.line; 1142 line.stateAfter = pos == n - 1 || pos % 5 == 0 || pos >= display.viewFrom && pos < display.viewTo ? context.save() : null; 1143 context.nextLine(); 1144 }); 1145 if (precise) { doc.modeFrontier = context.line; } 1146 return context 1147 } 1148 1149 // Lightweight form of highlight -- proceed over this line and 1150 // update state, but don't save a style array. Used for lines that 1151 // aren't currently visible. 1152 function processLine(cm, text, context, startAt) { 1153 var mode = cm.doc.mode; 1154 var stream = new StringStream(text, cm.options.tabSize, context); 1155 stream.start = stream.pos = startAt || 0; 1156 if (text == "") { callBlankLine(mode, context.state); } 1157 while (!stream.eol()) { 1158 readToken(mode, stream, context.state); 1159 stream.start = stream.pos; 1160 } 1161 } 1162 1163 function callBlankLine(mode, state) { 1164 if (mode.blankLine) { return mode.blankLine(state) } 1165 if (!mode.innerMode) { return } 1166 var inner = innerMode(mode, state); 1167 if (inner.mode.blankLine) { return inner.mode.blankLine(inner.state) } 1168 } 1169 1170 function readToken(mode, stream, state, inner) { 1171 for (var i = 0; i < 10; i++) { 1172 if (inner) { inner[0] = innerMode(mode, state).mode; } 1173 var style = mode.token(stream, state); 1174 if (stream.pos > stream.start) { return style } 1175 } 1176 throw new Error("Mode " + mode.name + " failed to advance stream.") 1177 } 1178 1179 var Token = function(stream, type, state) { 1180 this.start = stream.start; this.end = stream.pos; 1181 this.string = stream.current(); 1182 this.type = type || null; 1183 this.state = state; 1184 }; 1185 1186 // Utility for getTokenAt and getLineTokens 1187 function takeToken(cm, pos, precise, asArray) { 1188 var doc = cm.doc, mode = doc.mode, style; 1189 pos = clipPos(doc, pos); 1190 var line = getLine(doc, pos.line), context = getContextBefore(cm, pos.line, precise); 1191 var stream = new StringStream(line.text, cm.options.tabSize, context), tokens; 1192 if (asArray) { tokens = []; } 1193 while ((asArray || stream.pos < pos.ch) && !stream.eol()) { 1194 stream.start = stream.pos; 1195 style = readToken(mode, stream, context.state); 1196 if (asArray) { tokens.push(new Token(stream, style, copyState(doc.mode, context.state))); } 1197 } 1198 return asArray ? tokens : new Token(stream, style, context.state) 1199 } 1200 1201 function extractLineClasses(type, output) { 1202 if (type) { for (;;) { 1203 var lineClass = type.match(/(?:^|\s+)line-(background-)?(\S+)/); 1204 if (!lineClass) { break } 1205 type = type.slice(0, lineClass.index) + type.slice(lineClass.index + lineClass[0].length); 1206 var prop = lineClass[1] ? "bgClass" : "textClass"; 1207 if (output[prop] == null) 1208 { output[prop] = lineClass[2]; } 1209 else if (!(new RegExp("(?:^|\\s)" + lineClass[2] + "(?:$|\\s)")).test(output[prop])) 1210 { output[prop] += " " + lineClass[2]; } 1211 } } 1212 return type 1213 } 1214 1215 // Run the given mode's parser over a line, calling f for each token. 1216 function runMode(cm, text, mode, context, f, lineClasses, forceToEnd) { 1217 var flattenSpans = mode.flattenSpans; 1218 if (flattenSpans == null) { flattenSpans = cm.options.flattenSpans; } 1219 var curStart = 0, curStyle = null; 1220 var stream = new StringStream(text, cm.options.tabSize, context), style; 1221 var inner = cm.options.addModeClass && [null]; 1222 if (text == "") { extractLineClasses(callBlankLine(mode, context.state), lineClasses); } 1223 while (!stream.eol()) { 1224 if (stream.pos > cm.options.maxHighlightLength) { 1225 flattenSpans = false; 1226 if (forceToEnd) { processLine(cm, text, context, stream.pos); } 1227 stream.pos = text.length; 1228 style = null; 1229 } else { 1230 style = extractLineClasses(readToken(mode, stream, context.state, inner), lineClasses); 1231 } 1232 if (inner) { 1233 var mName = inner[0].name; 1234 if (mName) { style = "m-" + (style ? mName + " " + style : mName); } 1235 } 1236 if (!flattenSpans || curStyle != style) { 1237 while (curStart < stream.start) { 1238 curStart = Math.min(stream.start, curStart + 5000); 1239 f(curStart, curStyle); 1240 } 1241 curStyle = style; 1242 } 1243 stream.start = stream.pos; 1244 } 1245 while (curStart < stream.pos) { 1246 // Webkit seems to refuse to render text nodes longer than 57444 1247 // characters, and returns inaccurate measurements in nodes 1248 // starting around 5000 chars. 1249 var pos = Math.min(stream.pos, curStart + 5000); 1250 f(pos, curStyle); 1251 curStart = pos; 1252 } 1253 } 1254 1255 // Finds the line to start with when starting a parse. Tries to 1256 // find a line with a stateAfter, so that it can start with a 1257 // valid state. If that fails, it returns the line with the 1258 // smallest indentation, which tends to need the least context to 1259 // parse correctly. 1260 function findStartLine(cm, n, precise) { 1261 var minindent, minline, doc = cm.doc; 1262 var lim = precise ? -1 : n - (cm.doc.mode.innerMode ? 1000 : 100); 1263 for (var search = n; search > lim; --search) { 1264 if (search <= doc.first) { return doc.first } 1265 var line = getLine(doc, search - 1), after = line.stateAfter; 1266 if (after && (!precise || search + (after instanceof SavedContext ? after.lookAhead : 0) <= doc.modeFrontier)) 1267 { return search } 1268 var indented = countColumn(line.text, null, cm.options.tabSize); 1269 if (minline == null || minindent > indented) { 1270 minline = search - 1; 1271 minindent = indented; 1272 } 1273 } 1274 return minline 1275 } 1276 1277 function retreatFrontier(doc, n) { 1278 doc.modeFrontier = Math.min(doc.modeFrontier, n); 1279 if (doc.highlightFrontier < n - 10) { return } 1280 var start = doc.first; 1281 for (var line = n - 1; line > start; line--) { 1282 var saved = getLine(doc, line).stateAfter; 1283 // change is on 3 1284 // state on line 1 looked ahead 2 -- so saw 3 1285 // test 1 + 2 < 3 should cover this 1286 if (saved && (!(saved instanceof SavedContext) || line + saved.lookAhead < n)) { 1287 start = line + 1; 1288 break 1289 } 1290 } 1291 doc.highlightFrontier = Math.min(doc.highlightFrontier, start); 1292 } 1293 1294 // Optimize some code when these features are not used. 1295 var sawReadOnlySpans = false, sawCollapsedSpans = false; 1296 1297 function seeReadOnlySpans() { 1298 sawReadOnlySpans = true; 1299 } 1300 1301 function seeCollapsedSpans() { 1302 sawCollapsedSpans = true; 1303 } 1304 1305 // TEXTMARKER SPANS 1306 1307 function MarkedSpan(marker, from, to) { 1308 this.marker = marker; 1309 this.from = from; this.to = to; 1310 } 1311 1312 // Search an array of spans for a span matching the given marker. 1313 function getMarkedSpanFor(spans, marker) { 1314 if (spans) { for (var i = 0; i < spans.length; ++i) { 1315 var span = spans[i]; 1316 if (span.marker == marker) { return span } 1317 } } 1318 } 1319 1320 // Remove a span from an array, returning undefined if no spans are 1321 // left (we don't store arrays for lines without spans). 1322 function removeMarkedSpan(spans, span) { 1323 var r; 1324 for (var i = 0; i < spans.length; ++i) 1325 { if (spans[i] != span) { (r || (r = [])).push(spans[i]); } } 1326 return r 1327 } 1328 1329 // Add a span to a line. 1330 function addMarkedSpan(line, span, op) { 1331 var inThisOp = op && window.WeakSet && (op.markedSpans || (op.markedSpans = new WeakSet)); 1332 if (inThisOp &&
1332line.markedSpans
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1332 && inThisOp.has(line.markedSpans)) { 1333 line.markedSpans.push(span); 1334 } else { 1335 line.markedSpans = line.markedSpans ? line.markedSpans.concat([span]) : [span]; 1336 if (inThisOp) { inThisOp.add(line.markedSpans); } 1337 } 1338 span.marker.attachLine(line); 1339 } 1340 1341 // Used for the algorithm that adjusts markers for a change in the 1342 // document. These functions cut an array of spans at a given 1343 // character position, returning an array of remaining chunks (or 1344 // undefined if nothing remains). 1345 function markedSpansBefore(old, startCh, isInsert) { 1346 var nw; 1347 if (old) { for (var i = 0; i < old.length; ++i) { 1348 var span = old[i], marker = span.marker; 1349 var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= startCh : span.from < startCh); 1350 if (startsBefore || span.from == startCh && marker.type == "bookmark" && (!isInsert || !span.marker.insertLeft)) { 1351 var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= startCh : span.to > startCh) 1352 ;(nw || (nw = [])).push(new MarkedSpan(marker, span.from, endsAfter ? null : span.to)); 1353 } 1354 } } 1355 return nw 1356 } 1357 function markedSpansAfter(old, endCh, isInsert) { 1358 var nw; 1359 if (old) { for (var i = 0; i < old.length; ++i) { 1360 var span = old[i], marker = span.marker; 1361 var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= endCh : span.to > endCh); 1362 if (endsAfter || span.from == endCh && marker.type == "bookmark" && (!isInsert || span.marker.insertLeft)) { 1363 var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= endCh : span.from < endCh) 1364 ;(nw || (nw = [])).push(new MarkedSpan(marker, startsBefore ? null : span.from - endCh, 1365 span.to == null ? null : span.to - endCh)); 1366 } 1367 } } 1368 return nw 1369 } 1370 1371 // Given a change object, compute the new set of marker spans that 1372 // cover the line in which the change took place. Removes spans 1373 // entirely within the change, reconnects spans belonging to the 1374 // same marker that appear on both sides of the change, and cuts off 1375 // spans partially within the change. Returns an array of span 1376 // arrays with one element for each line in (after) the change. 1377 function stretchSpansOverChange(doc, change) { 1378 if (change.full) { return null } 1379 var oldFirst = isLine(doc, change.from.line) && getLine(doc, change.from.line).markedSpans; 1380 var oldLast = isLine(doc, change.to.line) && getLine(doc, change.to.line).markedSpans; 1381 if (!oldFirst && !oldLast) { return null } 1382 1383 var startCh = change.from.ch, endCh = change.to.ch, isInsert = cmp(change.from, change.to) == 0; 1384 // Get the spans that 'stick out' on both sides 1385 var first = markedSpansBefore(oldFirst, startCh, isInsert); 1386 var last = markedSpansAfter(oldLast, endCh, isInsert); 1387 1388 // Next, merge those two ends 1389 var sameLine = change.text.length == 1, offset = lst(change.text).length + (sameLine ? startCh : 0); 1390 if (first) { 1391 // Fix up .to properties of first 1392 for (var i = 0; i < first.length; ++i) { 1393 var span = first[i]; 1394 if (span.to == null) { 1395 var found = getMarkedSpanFor(last, span.marker); 1396 if (!found) { span.to = startCh; } 1397 else if (sameLine) { span.to = found.to == null ? null : found.to + offset; } 1398 } 1399 } 1400 } 1401 if (last) { 1402 // Fix up .from in last (or move them into first in case of sameLine) 1403 for (var i$1 = 0; i$1 < last.length; ++i$1) { 1404 var span$1 = last[i$1]; 1405 if (span$1.to != null) { span$1.to += offset; } 1406 if (span$1.from == null) { 1407 var found$1 = getMarkedSpanFor(first, span$1.marker); 1408 if (!found$1) { 1409 span$1.from = offset; 1410 if (sameLine) { (first || (first = [])).push(span$1); } 1411 } 1412 } else { 1413 span$1.from += offset; 1414 if (sameLine) { (first || (first = [])).push(span$1); } 1415 } 1416 } 1417 } 1418 // Make sure we didn't create any zero-length spans 1419 if (first) { first = clearEmptySpans(first); } 1420 if (last && last != first) { last = clearEmptySpans(last); } 1421 1422 var newMarkers = [first]; 1423 if (!sameLine) { 1424 // Fill gap with whole-line-spans 1425 var gap = change.text.length - 2, gapMarkers; 1426 if (gap > 0 && first) 1427 { for (var i$2 = 0; i$2 < first.length; ++i$2) 1428 { if (first[i$2].to == null) 1429 { (gapMarkers || (gapMarkers = [])).push(new MarkedSpan(first[i$2].marker, null, null)); } } } 1430 for (var i$3 = 0; i$3 < gap; ++i$3) 1431 { newMarkers.push(gapMarkers); } 1432 newMarkers.push(last); 1433 } 1434 return newMarkers 1435 } 1436 1437 // Remove spans that are empty and don't have a clearWhenEmpty 1438 // option of false. 1439 function clearEmptySpans(spans) { 1440 for (var i = 0; i < spans.length; ++i) { 1441 var span = spans[i]; 1442 if (span.from != null && span.from == span.to && span.marker.clearWhenEmpty !== false) 1443 { spans.splice(i--, 1); } 1444 } 1445 if (!spans.length) { return null } 1446 return spans 1447 } 1448 1449 // Used to 'clip' out readOnly ranges when making a change. 1450 function removeReadOnlyRanges(doc, from, to) { 1451 var markers = null; 1452 doc.iter(from.line, to.line + 1, function (line) { 1453 if (line.markedSpans) { for (var i = 0; i < line.markedSpans.length; ++i) { 1454 var mark = line.markedSpans[i].marker; 1455 if (mark.readOnly && (!markers || indexOf(markers, mark) == -1)) 1456 { (markers || (markers = [])).push(mark); } 1457 } } 1458 }); 1459 if (!markers) { return null } 1460 var parts = [{from: from, to: to}]; 1461 for (var i = 0; i < markers.length; ++i) { 1462 var mk = markers[i], m = mk.find(0); 1463 for (var j = 0; j < parts.length; ++j) { 1464 var p = parts[j]; 1465 if (cmp(p.to, m.from) < 0 || cmp(p.from, m.to) > 0) { continue } 1466 var newParts = [j, 1], dfrom = cmp(p.from, m.from), dto = cmp(p.to, m.to); 1467 if (dfrom < 0 || !mk.inclusiveLeft && !dfrom) 1468 { newParts.push({from: p.from, to: m.from}); } 1469 if (dto > 0 || !mk.inclusiveRight && !dto) 1470 { newParts.push({from: m.to, to: p.to}); } 1471 parts.splice.apply(parts, newParts); 1472 j += newParts.length - 3; 1473 } 1474 } 1475 return parts 1476 } 1477 1478 // Connect or disconnect spans from a line. 1479 function detachMarkedSpans(line) { 1480 var spans = line.markedSpans; 1481 if (!spans) { return } 1482 for (var i = 0; i < spans.length; ++i) 1483 { spans[i].marker.detachLine(line); } 1484 line.markedSpans = null; 1485 } 1486 function attachMarkedSpans(line, spans) { 1487 if (!spans) { return } 1488 for (var i = 0; i < spans.length; ++i) 1489 { spans[i].marker.attachLine(line); } 1490 line.markedSpans = spans; 1491 } 1492 1493 // Helpers used when computing which overlapping collapsed span 1494 // counts as the larger one. 1495 function extraLeft(marker) { return marker.inclusiveLeft ? -1 : 0 } 1496 function extraRight(marker) { return marker.inclusiveRight ? 1 : 0 } 1497 1498 // Returns a number indicating which of two overlapping collapsed 1499 // spans is larger (and thus includes the other). Falls back to 1500 // comparing ids when the spans cover exactly the same range. 1501 function compareCollapsedMarkers(a, b) { 1502 var lenDiff = a.lines.length - b.lines.length; 1503 if (lenDiff != 0) { return lenDiff } 1504 var aPos = a.find(), bPos = b.find(); 1505 var fromCmp = cmp(aPos.from, bPos.from) || extraLeft(a) - extraLeft(b); 1506 if (fromCmp) { return -fromCmp } 1507 var toCmp = cmp(aPos.to, bPos.to) || extraRight(a) - extraRight(b); 1508 if (toCmp) { return toCmp } 1509 return b.id - a.id 1510 } 1511 1512 // Find out whether a line ends or starts in a collapsed span. If 1513 // so, return the marker for that span. 1514 function collapsedSpanAtSide(line, start) { 1515 var sps = sawCollapsedSpans && line.markedSpans, found; 1516 if (sps) { for (var sp = (void 0), i = 0; i < sps.length; ++i) { 1517 sp = sps[i]; 1518 if (sp.marker.collapsed && (start ? sp.from : sp.to) == null && 1519 (!found || compareCollapsedMarkers(found, sp.marker) < 0)) 1520 { found = sp.marker; } 1521 } } 1522 return found 1523 } 1524 function collapsedSpanAtStart(line) { return collapsedSpanAtSide(line, true) } 1525 function collapsedSpanAtEnd(line) { return collapsedSpanAtSide(line, false) } 1526 1527 function collapsedSpanAround(line, ch) { 1528 var sps = sawCollapsedSpans && line.markedSpans, found; 1529 if (sps) { for (var i = 0; i < sps.length; ++i) { 1530 var sp = sps[i]; 1531 if (sp.marker.collapsed && (sp.from == null || sp.from < ch) && (sp.to == null || sp.to > ch) && 1532 (!found || compareCollapsedMarkers(found, sp.marker) < 0)) { found = sp.marker; } 1533 } } 1534 return found 1535 } 1536 1537 // Test whether there exists a collapsed span that partially 1538 // overlaps (covers the start or end, but not both) of a new span. 1539 // Such overlap is not allowed. 1540 function conflictingCollapsedRange(doc, lineNo, from, to, marker) { 1541 var line = getLine(doc, lineNo); 1542 var sps = sawCollapsedSpans && line.markedSpans; 1543 if (sps) { for (var i = 0; i < sps.length; ++i) { 1544 var sp = sps[i]; 1545 if (!sp.marker.collapsed) { continue } 1546 var found = sp.marker.find(0); 1547 var fromCmp = cmp(found.from, from) || extraLeft(sp.marker) - extraLeft(marker); 1548 var toCmp = cmp(found.to, to) || extraRight(sp.marker) - extraRight(marker); 1549 if (fromCmp >= 0 && toCmp <= 0 || fromCmp <= 0 && toCmp >= 0) { continue } 1550 if (fromCmp <= 0 && (sp.marker.inclusiveRight && marker.inclusiveLeft ? cmp(found.to, from) >= 0 : cmp(found.to, from) > 0) || 1551 fromCmp >= 0 && (sp.marker.inclusiveRight && marker.inclusiveLeft ? cmp(found.from, to) <= 0 : cmp(found.from, to) < 0)) 1552 { return true } 1553 } } 1554 } 1555 1556 // A visual line is a line as drawn on the screen. Folding, for 1557 // example, can cause multiple logical lines to appear on the same 1558 // visual line. This finds the start of the visual line that the 1559 // given line is part of (usually that is the line itself). 1560 function visualLine(line) { 1561 var merged; 1562 while (merged = collapsedSpanAtStart(line)) 1563 { line = merged.find(-1, true).line; } 1564 return line 1565 } 1566 1567 function visualLineEnd(line) { 1568 var merged; 1569 while (merged = collapsedSpanAtEnd(line)) 1570 { line = merged.find(1, true).line; } 1571 return line 1572 } 1573 1574 // Returns an array of logical lines that continue the visual line 1575 // started by the argument, or undefined if there are no such lines. 1576 function visualLineContinued(line) { 1577 var merged, lines; 1578 while (merged = collapsedSpanAtEnd(line)) { 1579 line = merged.find(1, true).line 1580 ;(lines || (lines = [])).push(line); 1581 } 1582 return lines 1583 } 1584 1585 // Get the line number of the start of the visual line that the 1586 // given line number is part of. 1587 function visualLineNo(doc, lineN) { 1588 var line = getLine(doc, lineN), vis = visualLine(line); 1589 if (line == vis) { return lineN } 1590 return lineNo(vis) 1591 } 1592 1593 // Get the line number of the start of the next visual line after 1594 // the given line. 1595 function visualLineEndNo(doc, lineN) { 1596 if (lineN > doc.lastLine()) { return lineN } 1597 var line = getLine(doc, lineN), merged; 1598 if (!lineIsHidden(doc, line)) { return lineN } 1599 while (merged = collapsedSpanAtEnd(line)) 1600 { line = merged.find(1, true).line; } 1601 return lineNo(line) + 1 1602 } 1603 1604 // Compute whether a line is hidden. Lines count as hidden when they 1605 // are part of a visual line that starts with another line, or when 1606 // they are entirely covered by collapsed, non-widget span. 1607 function lineIsHidden(doc, line) { 1608 var sps = sawCollapsedSpans && line.markedSpans; 1609 if (sps) { for (var sp = (void 0), i = 0; i < sps.length; ++i) { 1610 sp = sps[i]; 1611 if (!sp.marker.collapsed) { continue } 1612 if (sp.from == null) { return true } 1613 if (sp.marker.widgetNode) { continue } 1614 if (sp.from == 0 && sp.marker.inclusiveLeft && lineIsHiddenInner(doc, line, sp)) 1615 { return true } 1616 } } 1617 } 1618 function lineIsHiddenInner(doc, line, span) { 1619 if (span.to == null) { 1620 var end = span.marker.find(1, true); 1621 return lineIsHiddenInner(doc, end.line, getMarkedSpanFor(end.line.markedSpans, span.marker)) 1622 } 1623 if (span.marker.inclusiveRight && span.to == line.text.length) 1624 { return true } 1625 for (var sp = (void 0), i = 0; i < line.markedSpans.length; ++i) { 1626 sp = line.markedSpans[i]; 1627 if (sp.marker.collapsed && !sp.marker.widgetNode && sp.from == span.to && 1628 (sp.to == null || sp.to != span.from) && 1629 (sp.marker.inclusiveLeft || span.marker.inclusiveRight) && 1630 lineIsHiddenInner(doc, line, sp)) { return true } 1631 } 1632 } 1633 1634 // Find the height above the given line. 1635 function heightAtLine(lineObj) { 1636 lineObj = visualLine(lineObj); 1637 1638 var h = 0, chunk = lineObj.parent; 1639 for (var i = 0; i < chunk.lines.length; ++i) { 1640 var line = chunk.lines[i]; 1641 if (line == lineObj) { break } 1642 else { h += line.height; } 1643 } 1644 for (var p = chunk.parent; p; chunk = p, p = chunk.parent) { 1645 for (var i$1 = 0; i$1 < p.children.length; ++i$1) { 1646 var cur = p.children[i$1]; 1647 if (cur == chunk) { break } 1648 else { h += cur.height; } 1649 } 1650 } 1651 return h 1652 } 1653 1654 // Compute the character length of a line, taking into account 1655 // collapsed ranges (see markText) that might hide parts, and join 1656 // other lines onto it. 1657 function lineLength(line) { 1658 if (line.height == 0) { return 0 } 1659 var len = line.text.length, merged, cur = line; 1660 while (merged = collapsedSpanAtStart(cur)) { 1661 var found = merged.find(0, true); 1662 cur = found.from.line; 1663 len += found.from.ch - found.to.ch; 1664 } 1665 cur = line; 1666 while (merged = collapsedSpanAtEnd(cur)) { 1667 var found$1 = merged.find(0, true); 1668 len -= cur.text.length - found$1.from.ch; 1669 cur = found$1.to.line; 1670 len += cur.text.length - found$1.to.ch; 1671 } 1672 return len 1673 } 1674 1675 // Find the longest line in the document. 1676 function findMaxLine(cm) { 1677 var d = cm.display, doc = cm.doc; 1678 d.maxLine = getLine(doc, doc.first); 1679 d.maxLineLength = lineLength(d.maxLine); 1680 d.maxLineChanged = true; 1681 doc.iter(function (line) { 1682 var len = lineLength(line); 1683 if (len > d.maxLineLength) { 1684 d.maxLineLength = len; 1685 d.maxLine = line; 1686 } 1687 }); 1688 } 1689 1690 // LINE DATA STRUCTURE 1691 1692 // Line objects. These hold state related to a line, including 1693 // highlighting info (the styles array). 1694 var Line = function(text, markedSpans, estimateHeight) { 1695 this.text = text; 1696 attachMarkedSpans(this, markedSpans); 1697 this.height = estimateHeight ? estimateHeight(this) : 1; 1698 }; 1699 1700 Line.prototype.lineNo = function () { return lineNo(this) }; 1701 eventMixin(Line); 1702 1703 // Change the content (text, markers) of a line. Automatically 1704 // invalidates cached information and tries to re-estimate the 1705 // line's height. 1706 function updateLine(line, text, markedSpans, estimateHeight) { 1707 line.text = text; 1708 if (line.stateAfter) { line.stateAfter = null; } 1709 if (line.styles) { line.styles = null; } 1710 if (line.order != null) { line.order = null; } 1711 detachMarkedSpans(line); 1712 attachMarkedSpans(line, markedSpans); 1713 var estHeight = estimateHeight ? estimateHeight(line) : 1; 1714 if (estHeight != line.height) { updateLineHeight(line, estHeight); } 1715 } 1716 1717 // Detach a line from the document tree and its markers. 1718 function cleanUpLine(line) { 1719 line.parent = null; 1720 detachMarkedSpans(line); 1721 } 1722 1723 // Convert a style as returned by a mode (either null, or a string 1724 // containing one or more styles) to a CSS style. This is cached, 1725 // and also looks for line-wide styles. 1726 var styleToClassCache = {}, styleToClassCacheWithMode = {}; 1727 function interpretTokenStyle(style, options) { 1728 if (!style || /^\s*$/.test(style)) { return null } 1729 var cache = options.addModeClass ? styleToClassCacheWithMode : styleToClassCache; 1730 return cache[style] || 1731 (cache[style] = style.replace(/\S+/g, "cm-$&")) 1732 } 1733 1734 // Render the DOM representation of the text of a line. Also builds 1735 // up a 'line map', which points at the DOM nodes that represent 1736 // specific stretches of text, and is used by the measuring code. 1737 // The returned object contains the DOM node, this map, and 1738 // information about line-wide styles that were set by the mode. 1739 function buildLineContent(cm, lineView) { 1740 // The padding-right forces the element to have a 'border', which 1741 // is needed on Webkit to be able to get line-level bounding 1742 // rectangles for it (in measureChar). 1743 var content = eltP("span", null, null, webkit ? "padding-right: .1px" : null); 1744 var builder = {pre: eltP("pre", [content], "CodeMirror-line"), content: content, 1745 col: 0, pos: 0, cm: cm, 1746 trailingSpace: false, 1747 splitSpaces: cm.getOption("lineWrapping")}; 1748 lineView.measure = {}; 1749 1750 // Iterate over the logical lines that make up this visual line. 1751 for (var i = 0; i <= (lineView.rest ? lineView.rest.length : 0); i++) { 1752 var line = i ? lineView.rest[i - 1] : lineView.line, order = (void 0); 1753 builder.pos = 0; 1754 builder.addToken = buildToken; 1755 // Optionally wire in some hacks into the token-rendering 1756 // algorithm, to deal with browser quirks. 1757 if (hasBadBidiRects(cm.display.measure) && (order = getOrder(line, cm.doc.direction))) 1758 { builder.addToken = buildTokenBadBidi(builder.addToken, order); } 1759 builder.map = []; 1760 var allowFrontierUpdate = lineView != cm.display.externalMeasured && lineNo(line); 1761 insertLineContent(line, builder, getLineStyles(cm, line, allowFrontierUpdate)); 1762 if (line.styleClasses) { 1763 if (line.styleClasses.bgClass) 1764 { builder.bgClass = joinClasses(line.styleClasses.bgClass, builder.bgClass || ""); } 1765 if (line.styleClasses.textClass) 1766 { builder.textClass = joinClasses(line.styleClasses.textClass, builder.textClass || ""); } 1767 } 1768 1769 // Ensure at least a single node is present, for measuring. 1770 if (builder.map.length == 0) 1771 { builder.map.push(0, 0, builder.content.appendChild(zeroWidthElement(cm.display.measure))); } 1772 1773 // Store the map and a cache object for the current logical line 1774 if (i == 0) { 1775 lineView.measure.map = builder.map; 1776 lineView.measure.cache = {}; 1777 } else { 1778 (lineView.measure.maps || (lineView.measure.maps = [])).push(builder.map) 1779 ;(lineView.measure.caches || (lineView.measure.caches = [])).push({}); 1780 } 1781 } 1782 1783 // See issue #2901 1784 if (webkit) { 1785 var last = builder.content.lastChild; 1786 if (/\bcm-tab\b/.test(last.className) || (last.querySelector && last.querySelector(".cm-tab"))) 1787 { builder.content.className = "cm-tab-wrap-hack"; } 1788 } 1789 1790 signal(cm, "renderLine", cm, lineView.line, builder.pre); 1791 if (builder.pre.className) 1792 { builder.textClass = joinClasses(builder.pre.className, builder.textClass || ""); } 1793 1794 return builder 1795 } 1796 1797 function defaultSpecialCharPlaceholder(ch) { 1798 var token = elt("span", "\u2022", "cm-invalidchar"); 1799 token.title = "\\u" + ch.charCodeAt(0).toString(16); 1800 token.setAttribute("aria-label", token.title); 1801 return token 1802 } 1803 1804 // Build up the DOM representation for a single token, and add it to 1805 // the line map. Takes care to render special characters separately. 1806 function buildToken(builder, text, style, startStyle, endStyle, css, attributes) { 1807 if (!text) { return } 1808 var displayText = builder.splitSpaces ? splitSpaces(text, builder.trailingSpace) : text; 1809 var special = builder.cm.state.specialChars, mustWrap = false; 1810 var content; 1811 if (!special.test(text)) { 1812 builder.col += text.length; 1813 content = document.createTextNode(displayText); 1814 builder.map.push(builder.pos, builder.pos + text.length, content); 1815 if (ie && ie_version < 9) { mustWrap = true; } 1816 builder.pos += text.length; 1817 } else { 1818 content = document.createDocumentFragment(); 1819 var pos = 0; 1820 while (true) { 1821 special.lastIndex = pos; 1822 var m = special.exec(text); 1823 var skipped = m ? m.index - pos : text.length - pos; 1824 if (skipped) { 1825 var txt = document.createTextNode(displayText.slice(pos, pos + skipped)); 1826 if (ie && ie_version < 9) { content.appendChild(elt("span", [txt])); } 1827 else { content.appendChild(txt); } 1828 builder.map.push(builder.pos, builder.pos + skipped, txt); 1829 builder.col += skipped; 1830 builder.pos += skipped; 1831 } 1832 if (!m) { break } 1833 pos += skipped + 1; 1834 var txt$1 = (void 0); 1835 if (m[0] == "\t") { 1836 var tabSize = builder.cm.options.tabSize, tabWidth = tabSize - builder.col % tabSize; 1837 txt$1 = content.appendChild(elt("span", spaceStr(tabWidth), "cm-tab")); 1838 txt$1.setAttribute("role", "presentation"); 1839 txt$1.setAttribute("cm-text", "\t"); 1840 builder.col += tabWidth; 1841 } else if (m[0] == "\r" || m[0] == "\n") { 1842 txt$1 = content.appendChild(elt("span", m[0] == "\r" ? "\u240d" : "\u2424", "cm-invalidchar")); 1843 txt$1.setAttribute("cm-text", m[0]); 1844 builder.col += 1; 1845 } else { 1846 txt$1 = builder.cm.options.specialCharPlaceholder(m[0]); 1847 txt$1.setAttribute("cm-text", m[0]); 1848 if (ie && ie_version < 9) { content.appendChild(elt("span", [txt$1])); } 1849 else { content.appendChild(txt$1); } 1850 builder.col += 1; 1851 } 1852 builder.map.push(builder.pos, builder.pos + 1, txt$1); 1853 builder.pos++; 1854 } 1855 } 1856 builder.trailingSpace = displayText.charCodeAt(text.length - 1) == 32; 1857 if (style || startStyle || endStyle || mustWrap || css || attributes) { 1858 var fullStyle = style || ""; 1859 if (startStyle) { fullStyle += startStyle; } 1860 if (endStyle) { fullStyle += endStyle; } 1861 var token = elt("span", [content], fullStyle, css); 1862 if (attributes) { 1863 for (var attr in attributes) { if (attributes.hasOwnProperty(attr) && attr != "style" && attr != "class") 1864 { token.setAttribute(attr, attributes[attr]); } } 1865 } 1866 return builder.content.appendChild(token) 1867 } 1868 builder.content.appendChild(content); 1869 } 1870 1871 // Change some spaces to NBSP to prevent the browser from collapsing 1872 // trailing spaces at the end of a line when rendering text (issue #1362). 1873 function splitSpaces(text, trailingBefore) { 1874 if (text.length > 1 && !/ /.test(text)) { return text } 1875 var spaceBefore = trailingBefore, result = ""; 1876 for (var i = 0; i < text.length; i++) { 1877 var ch = text.charAt(i); 1878 if (ch == " " && spaceBefore && (i == text.length - 1 || text.charCodeAt(i + 1) == 32)) 1879 { ch = "\u00a0"; } 1880 result += ch; 1881 spaceBefore = ch == " "; 1882 } 1883 return result 1884 } 1885 1886 // Work around nonsense dimensions being reported for stretches of 1887 // right-to-left text. 1888 function buildTokenBadBidi(inner, order) { 1889 return function (builder, text, style, startStyle, endStyle, css, attributes) { 1890 style = style ? style + " cm-force-border" : "cm-force-border"; 1891 var start = builder.pos, end = start + text.length; 1892 for (;;) { 1893 // Find the part that overlaps with the start of this text 1894 var part = (void 0); 1895 for (var i = 0; i < order.length; i++) { 1896 part = order[i]; 1897 if (part.to > start && part.from <= start) { break } 1898 } 1899 if (part.to >= end) { return inner(builder, text, style, startStyle, endStyle, css, attributes) } 1900 inner(builder, text.slice(0, part.to - start), style, startStyle, null, css, attributes); 1901 startStyle = null; 1902 text = text.slice(part.to - start); 1903 start = part.to; 1904 } 1905 } 1906 } 1907 1908 function buildCollapsedSpan(builder, size, marker, ignoreWidget) { 1909 var widget = !ignoreWidget && marker.widgetNode; 1910 if (widget) { builder.map.push(builder.pos, builder.pos + size, widget); } 1911 if (!ignoreWidget && builder.cm.display.input.needsContentAttribute) { 1912 if (!widget) 1913 { widget = builder.content.appendChild(document.createElement("span")); } 1914 widget.setAttribute("cm-marker", marker.id); 1915 } 1916 if (widget) { 1917 builder.cm.display.input.setUneditable(widget); 1918 builder.content.appendChild(widget); 1919 } 1920 builder.pos += size; 1921 builder.trailingSpace = false; 1922 } 1923 1924 // Outputs a number of spans to make up a line, taking highlighting 1925 // and marked text into account. 1926 function insertLineContent(line, builder, styles) { 1927 var spans = line.markedSpans, allText = line.text, at = 0; 1928 if (!spans) { 1929 for (var i$1 = 1; i$1 < styles.length; i$1+=2) 1930 { builder.addToken(builder, allText.slice(at, at = styles[i$1]), interpretTokenStyle(styles[i$1+1], builder.cm.options)); } 1931 return 1932 } 1933 1934 var len = allText.length, pos = 0, i = 1, text = "", style, css; 1935 var nextChange = 0, spanStyle, spanEndStyle, spanStartStyle, collapsed, attributes; 1936 for (;;) { 1937 if (nextChange == pos) { // Update current marker set 1938 spanStyle = spanEndStyle = spanStartStyle = css = ""; 1939 attributes = null; 1940 collapsed = null; nextChange = Infinity; 1941 var foundBookmarks = [], endStyles = (void 0); 1942 for (var j = 0; j < spans.length; ++j) { 1943 var sp = spans[j], m = sp.marker; 1944 if (m.type == "bookmark" && sp.from == pos && m.widgetNode) { 1945 foundBookmarks.push(m); 1946 } else if (sp.from <= pos && (sp.to == null || sp.to > pos || m.collapsed && sp.to == pos && sp.from == pos)) { 1947 if (sp.to != null && sp.to != pos && nextChange > sp.to) { 1948 nextChange = sp.to; 1949 spanEndStyle = ""; 1950 } 1951 if (m.className) { spanStyle += " " + m.className; } 1952 if (m.css) { css = (css ? css + ";" : "") + m.css; } 1953 if (m.startStyle && sp.from == pos) { spanStartStyle += " " + m.startStyle; } 1954 if (m.endStyle && sp.to == nextChange) { (endStyles || (endStyles = [])).push(m.endStyle, sp.to); } 1955 // support for the old title property 1956 // https://github.com/codemirror/CodeMirror/pull/5673 1957 if (m.title) { (attributes || (attributes = {})).title = m.title; } 1958 if (m.attributes) { 1959 for (var attr in m.attributes) 1960 { (attributes || (attributes = {}))[attr] = m.attributes[attr]; } 1961 } 1962 if (m.collapsed && (!collapsed || compareCollapsedMarkers(collapsed.marker, m) < 0)) 1963 { collapsed = sp; } 1964 } else if (sp.from > pos && nextChange > sp.from) { 1965 nextChange = sp.from; 1966 } 1967 } 1968 if (endStyles) { for (var j$1 = 0; j$1 < endStyles.length; j$1 += 2) 1969 { if (endStyles[j$1 + 1] == nextChange) { spanEndStyle += " " + endStyles[j$1]; } } } 1970 1971 if (!collapsed || collapsed.from == pos) { for (var j$2 = 0; j$2 < foundBookmarks.length; ++j$2) 1972 { buildCollapsedSpan(builder, 0, foundBookmarks[j$2]); } } 1973 if (collapsed && (collapsed.from || 0) == pos) { 1974 buildCollapsedSpan(builder, (collapsed.to == null ? len + 1 : collapsed.to) - pos, 1975 collapsed.marker, collapsed.from == null); 1976 if (collapsed.to == null) { return } 1977 if (collapsed.to == pos) { collapsed = false; } 1978 } 1979 } 1980 if (pos >= len) { break } 1981 1982 var upto = Math.min(len, nextChange); 1983 while (true) { 1984 if (text) { 1985 var end = pos + text.length; 1986 if (!collapsed) { 1987 var tokenText = end > upto ? text.slice(0, upto - pos) : text; 1988 builder.addToken(builder, tokenText, style ? style + spanStyle : spanStyle, 1989 spanStartStyle, pos + tokenText.length == nextChange ? spanEndStyle : "", css, attributes); 1990 } 1991 if (end >= upto) {text = text.slice(upto - pos); pos = upto; break} 1992 pos = end; 1993 spanStartStyle = ""; 1994 } 1995 text = allText.slice(at, at = styles[i++]); 1996 style = interpretTokenStyle(styles[i++], builder.cm.options); 1997 } 1998 } 1999 } 2000 2001 2002 // These objects are used to represent the visible (currently drawn) 2003 // part of the document. A LineView may correspond to multiple 2004 // logical lines, if those are connected by collapsed ranges. 2005 function LineView(doc, line, lineN) { 2006 // The starting line 2007 this.line = line; 2008 // Continuing lines, if any 2009 this.rest = visualLineContinued(line); 2010 // Number of logical lines in this visual line 2011 this.size = this.rest ? lineNo(lst(this.rest)) - lineN + 1 : 1; 2012 this.node = this.text = null; 2013 this.hidden = lineIsHidden(doc, line); 2014 } 2015 2016 // Create a range of LineView objects for the given lines. 2017 function buildViewArray(cm, from, to) { 2018 var array = [], nextPos; 2019 for (var pos = from; pos < to; pos = nextPos) { 2020 var view = new LineView(cm.doc, getLine(cm.doc, pos), pos); 2021 nextPos = pos + view.size; 2022 array.push(view); 2023 } 2024 return array 2025 } 2026 2027 var operationGroup = null; 2028 2029 function pushOperation(op) { 2030 if (operationGroup) { 2031 operationGroup.ops.push(op); 2032 } else { 2033 op.ownsGroup = operationGroup = { 2034 ops: [op], 2035 delayedCallbacks: [] 2036 }; 2037 } 2038 } 2039 2040 function fireCallbacksForOps(group) { 2041 // Calls delayed callbacks and cursorActivity handlers until no 2042 // new ones appear 2043 var callbacks = group.delayedCallbacks, i = 0; 2044 do { 2045 for (; i < callbacks.length; i++) 2046 { callbacks[i].call(null); } 2047 for (var j = 0; j < group.ops.length; j++) { 2048 var op = group.ops[j]; 2049 if (op.cursorActivityHandlers) 2050 { while (op.cursorActivityCalled < op.cursorActivityHandlers.length) 2051 { op.cursorActivityHandlers[op.cursorActivityCalled++].call(null, op.cm); } } 2052 } 2053 } while (i < callbacks.length) 2054 } 2055 2056 function finishOperation(op, endCb) { 2057 var group = op.ownsGroup; 2058 if (!group) { return } 2059 2060 try { fireCallbacksForOps(group); } 2061 finally { 2062 operationGroup = null; 2063 endCb(group); 2064 } 2065 } 2066 2067 var orphanDelayedCallbacks = null; 2068 2069 // Often, we want to signal events at a point where we are in the 2070 // middle of some work, but don't want the handler to start calling 2071 // other methods on the editor, which might be in an inconsistent 2072 // state or simply not expect any other events to happen. 2073 // signalLater looks whether there are any handlers, and schedules 2074 // them to be executed when the last operation ends, or, if no 2075 // operation is active, when a timeout fires. 2076 function signalLater(emitter, type /*, values...*/) { 2077 var arr = getHandlers(emitter, type); 2078 if (!arr.length) { return } 2079 var args = Array.prototype.slice.call(arguments, 2), list; 2080 if (operationGroup) { 2081 list = operationGroup.delayedCallbacks; 2082 } else if (orphanDelayedCallbacks) { 2083 list = orphanDelayedCallbacks; 2084 } else { 2085 list = orphanDelayedCallbacks = []; 2086 setTimeout(fireOrphanDelayed, 0); 2087 } 2088 var loop = function ( i ) { 2089 list.push(function () { return arr[i].apply(null, args); }); 2090 }; 2091 2092 for (var i = 0; i < arr.length; ++i) 2093 loop( i ); 2094 } 2095 2096 function fireOrphanDelayed() { 2097 var delayed = orphanDelayedCallbacks; 2098 orphanDelayedCallbacks = null; 2099 for (var i = 0; i < delayed.length; ++i) { delayed[i](); } 2100 } 2101 2102 // When an aspect of a line changes, a string is added to 2103 // lineView.changes. This updates the relevant part of the line's 2104 // DOM structure. 2105 function updateLineForChanges(cm, lineView, lineN, dims) { 2106 for (var j = 0; j < lineView.changes.length; j++) { 2107 var type = lineView.changes[j]; 2108 if (type == "text") { updateLineText(cm, lineView); } 2109 else if (type == "gutter") { updateLineGutter(cm, lineView, lineN, dims); } 2110 else if (type == "class") { updateLineClasses(cm, lineView); } 2111 else if (type == "widget") { updateLineWidgets(cm, lineView, dims); } 2112 } 2113 lineView.changes = null; 2114 } 2115 2116 // Lines with gutter elements, widgets or a background class need to 2117 // be wrapped, and have the extra elements added to the wrapper div 2118 function ensureLineWrapped(lineView) { 2119 if (lineView.node == lineView.text) { 2120 lineView.node = elt("div", null, null, "position: relative"); 2121 if (lineView.text.parentNode) 2122 { lineView.text.parentNode.replaceChild(lineView.node, lineView.text); } 2123 lineView.node.appendChild(lineView.text); 2124 if (ie && ie_version < 8) { lineView.node.style.zIndex = 2; } 2125 } 2126 return lineView.node 2127 } 2128 2129 function updateLineBackground(cm, lineView) { 2130 var cls = lineView.bgClass ? lineView.bgClass + " " + (lineView.line.bgClass || "") : lineView.line.bgClass; 2131 if (cls) { cls += " CodeMirror-linebackground"; } 2132 if (lineView.background) { 2133 if (cls) { lineView.background.className = cls; } 2134 else { lineView.background.parentNode.removeChild(lineView.background); lineView.background = null; } 2135 } else if (cls) { 2136 var wrap = ensureLineWrapped(lineView); 2137 lineView.background = wrap.insertBefore(elt("div", null, cls), wrap.firstChild); 2138 cm.display.input.setUneditable(lineView.background); 2139 } 2140 } 2141 2142 // Wrapper around buildLineContent which will reuse the structure 2143 // in display.externalMeasured when possible. 2144 function getLineContent(cm, lineView) { 2145 var ext = cm.display.externalMeasured; 2146 if (ext && ext.line == lineView.line) { 2147 cm.display.externalMeasured = null; 2148 lineView.measure = ext.measure; 2149 return ext.built 2150 } 2151 return buildLineContent(cm, lineView) 2152 } 2153 2154 // Redraw the line's text. Interacts with the background and text 2155 // classes because the mode may output tokens that influence these 2156 // classes. 2157 function updateLineText(cm, lineView) { 2158 var cls = lineView.text.className; 2159 var built = getLineContent(cm, lineView); 2160 if (lineView.text == lineView.node) { lineView.node = built.pre; } 2161 lineView.text.parentNode.replaceChild(built.pre, lineView.text); 2162 lineView.text = built.pre; 2163 if (built.bgClass != lineView.bgClass || built.textClass != lineView.textClass) { 2164 lineView.bgClass = built.bgClass; 2165 lineView.textClass = built.textClass; 2166 updateLineClasses(cm, lineView); 2167 } else if (cls) { 2168 lineView.text.className = cls; 2169 } 2170 } 2171 2172 function updateLineClasses(cm, lineView) { 2173 updateLineBackground(cm, lineView); 2174 if (lineView.line.wrapClass) 2175 { ensureLineWrapped(lineView).className = lineView.line.wrapClass; } 2176 else if (lineView.node != lineView.text) 2177 { lineView.node.className = ""; } 2178 var textClass = lineView.textClass ? lineView.textClass + " " + (lineView.line.textClass || "") : lineView.line.textClass; 2179 lineView.text.className = textClass || ""; 2180 } 2181 2182 function updateLineGutter(cm, lineView, lineN, dims) { 2183 if (lineView.gutter) { 2184 lineView.node.removeChild(lineView.gutter); 2185 lineView.gutter = null; 2186 } 2187 if (lineView.gutterBackground) { 2188 lineView.node.removeChild(lineView.gutterBackground); 2189 lineView.gutterBackground = null; 2190 } 2191 if (lineView.line.gutterClass) { 2192 var wrap = ensureLineWrapped(lineView); 2193 lineView.gutterBackground = elt("div", null, "CodeMirror-gutter-background " + lineView.line.gutterClass, 2194 ("left: " + (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) + "px; width: " + (dims.gutterTotalWidth) + "px")); 2195 cm.display.input.setUneditable(lineView.gutterBackground); 2196 wrap.insertBefore(lineView.gutterBackground, lineView.text); 2197 } 2198 var markers = lineView.line.gutterMarkers; 2199 if (cm.options.lineNumbers || markers) { 2200 var wrap$1 = ensureLineWrapped(lineView); 2201 var gutterWrap = lineView.gutter = elt("div", null, "CodeMirror-gutter-wrapper", ("left: " + (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) + "px")); 2202 gutterWrap.setAttribute("aria-hidden", "true"); 2203 cm.display.input.setUneditable(gutterWrap); 2204 wrap$1.insertBefore(gutterWrap, lineView.text); 2205 if (lineView.line.gutterClass) 2206 { gutterWrap.className += " " + lineView.line.gutterClass; } 2207 if (cm.options.lineNumbers && (!markers || !markers["CodeMirror-linenumbers"])) 2208 { lineView.lineNumber = gutterWrap.appendChild( 2209 elt("div", lineNumberFor(cm.options, lineN), 2210 "CodeMirror-linenumber CodeMirror-gutter-elt", 2211 ("left: " + (dims.gutterLeft["CodeMirror-linenumbers"]) + "px; width: " + (cm.display.lineNumInnerWidth) + "px"))); } 2212 if (markers) { for (var k = 0; k < cm.display.gutterSpecs.length; ++k) { 2213 var id = cm.display.gutterSpecs[k].className, found = markers.hasOwnProperty(id) && markers[id]; 2214 if (found) 2215 { gutterWrap.appendChild(elt("div", [found], "CodeMirror-gutter-elt", 2216 ("left: " + (dims.gutterLeft[id]) + "px; width: " + (dims.gutterWidth[id]) + "px"))); } 2217 } } 2218 } 2219 } 2220 2221 function updateLineWidgets(cm, lineView, dims) { 2222 if (lineView.alignable) { lineView.alignable = null; } 2223 var isWidget = classTest("CodeMirror-linewidget"); 2224 for (var node = lineView.node.firstChild, next = (void 0); node; node = next) { 2225 next = node.nextSibling; 2226 if (isWidget.test(node.className)) { lineView.node.removeChild(node); } 2227 } 2228 insertLineWidgets(cm, lineView, dims); 2229 } 2230 2231 // Build a line's DOM representation from scratch 2232 function buildLineElement(cm, lineView, lineN, dims) { 2233 var built = getLineContent(cm, lineView); 2234 lineView.text = lineView.node = built.pre; 2235 if (built.bgClass) { lineView.bgClass = built.bgClass; } 2236 if (built.textClass) { lineView.textClass = built.textClass; } 2237 2238 updateLineClasses(cm, lineView); 2239 updateLineGutter(cm, lineView, lineN, dims); 2240 insertLineWidgets(cm, lineView, dims); 2241 return lineView.node 2242 } 2243 2244 // A lineView may contain multiple logical lines (when merged by 2245 // collapsed spans). The widgets for all of them need to be drawn. 2246 function insertLineWidgets(cm, lineView, dims) { 2247 insertLineWidgetsFor(cm, lineView.line, lineView, dims, true); 2248 if (lineView.rest) { for (var i = 0; i < lineView.rest.length; i++) 2249 { insertLineWidgetsFor(cm, lineView.rest[i], lineView, dims, false); } } 2250 } 2251 2252 function insertLineWidgetsFor(cm, line, lineView, dims, allowAbove) { 2253 if (!line.widgets) { return } 2254 var wrap = ensureLineWrapped(lineView); 2255 for (var i = 0, ws = line.widgets; i < ws.length; ++i) { 2256 var widget = ws[i], node = elt("div", [widget.node], "CodeMirror-linewidget" + (widget.className ? " " + widget.className : "")); 2257 if (!widget.handleMouseEvents) { node.setAttribute("cm-ignore-events", "true"); } 2258 positionLineWidget(widget, node, lineView, dims); 2259 cm.display.input.setUneditable(node); 2260 if (allowAbove && widget.above) 2261 { wrap.insertBefore(node, lineView.gutter || lineView.text); } 2262 else 2263 { wrap.appendChild(node); } 2264 signalLater(widget, "redraw"); 2265 } 2266 } 2267 2268 function positionLineWidget(widget, node, lineView, dims) { 2269 if (widget.noHScroll) { 2270 (lineView.alignable || (lineView.alignable = [])).push(node); 2271 var width = dims.wrapperWidth; 2272 node.style.left = dims.fixedPos + "px"; 2273 if (!widget.coverGutter) { 2274 width -= dims.gutterTotalWidth; 2275 node.style.paddingLeft = dims.gutterTotalWidth + "px"; 2276 } 2277 node.style.width = width + "px"; 2278 } 2279 if (widget.coverGutter) { 2280 node.style.zIndex = 5; 2281 node.style.position = "relative"; 2282 if (!widget.noHScroll) { node.style.marginLeft = -dims.gutterTotalWidth + "px"; } 2283 } 2284 } 2285 2286 function widgetHeight(widget) { 2287 if (widget.height != null) { return widget.height } 2288 var cm = widget.doc.cm; 2289 if (!cm) { return 0 } 2290 if (!contains(document.body, widget.node)) { 2291 var parentStyle = "position: relative;"; 2292 if (widget.coverGutter) 2293 { parentStyle += "margin-left: -" + cm.display.gutters.offsetWidth + "px;"; } 2294 if (widget.noHScroll) 2295 { parentStyle += "width: " + cm.display.wrapper.clientWidth + "px;"; } 2296 removeChildrenAndAdd(cm.display.measure, elt("div", [widget.node], null, parentStyle)); 2297 } 2298 return widget.height = widget.node.parentNode.offsetHeight 2299 } 2300 2301 // Return true when the given mouse event happened in a widget 2302 function eventInWidget(display, e) { 2303 for (var n = e_target(e); n != display.wrapper; n = n.parentNode) { 2304 if (!n || (n.nodeType == 1 && n.getAttribute("cm-ignore-events") == "true") || 2305 (n.parentNode == display.sizer && n != display.mover)) 2306 { return true } 2307 } 2308 } 2309 2310 // POSITION MEASUREMENT 2311 2312 function paddingTop(display) {return display.lineSpace.offsetTop} 2313 function paddingVert(display) {return display.mover.offsetHeight - display.lineSpace.offsetHeight} 2314 function paddingH(display) { 2315 if (display.cachedPaddingH) { return display.cachedPaddingH } 2316 var e = removeChildrenAndAdd(display.measure, elt("pre", "x", "CodeMirror-line-like")); 2317 var style = window.getComputedStyle ? window.getComputedStyle(e) : e.currentStyle; 2318 var data = {left: parseInt(style.paddingLeft), right: parseInt(style.paddingRight)}; 2319 if (!isNaN(data.left) && !isNaN(data.right)) { display.cachedPaddingH = data; } 2320 return data 2321 } 2322 2323 function scrollGap(cm) { return scrollerGap - cm.display.nativeBarWidth } 2324 function displayWidth(cm) { 2325 return cm.display.scroller.clientWidth - scrollGap(cm) - cm.display.barWidth 2326 } 2327 function displayHeight(cm) { 2328 return cm.display.scroller.clientHeight - scrollGap(cm) - cm.display.barHeight 2329 } 2330 2331 // Ensure the lineView.wrapping.heights array is populated. This is 2332 // an array of bottom offsets for the lines that make up a drawn 2333 // line. When lineWrapping is on, there might be more than one 2334 // height. 2335 function ensureLineHeights(cm, lineView, rect) { 2336 var wrapping = cm.options.lineWrapping; 2337 var curWidth = wrapping && displayWidth(cm); 2338 if (!lineView.measure.heights || wrapping && lineView.measure.width != curWidth) { 2339 var heights = lineView.measure.heights = []; 2340 if (wrapping) { 2341 lineView.measure.width = curWidth; 2342 var rects = lineView.text.firstChild.getClientRects(); 2343 for (var i = 0; i < rects.length - 1; i++) { 2344 var cur = rects[i], next = rects[i + 1]; 2345 if (Math.abs(cur.bottom - next.bottom) > 2) 2346 { heights.push((cur.bottom + next.top) / 2 - rect.top); } 2347 } 2348 } 2349 heights.push(rect.bottom - rect.top); 2350 } 2351 } 2352 2353 // Find a line map (mapping character offsets to text nodes) and a 2354 // measurement cache for the given line number. (A line view might 2355 // contain multiple lines when collapsed ranges are present.) 2356 function mapFromLineView(lineView, line, lineN) { 2357 if (lineView.line == line) 2358 { return {map: lineView.measure.map, cache: lineView.measure.cache} } 2359
2359if (lineView.rest) { 2360 for (var i = 0; i < lineView.rest.length; i++) 2361 { if (lineView.rest[i] == line) 2362 { return {map: lineView.measure.maps[i], cache: lineView.measure.caches[i]} } } 2363 for (var i$1 = 0; i$1 < lineView.rest.length; i$1++) 2364 { if (lineNo(lineView.rest[i$1]) > lineN) 2365 { return {map: lineView.measure.maps[i$1], cache: lineView.measure.caches[i$1], before: true} } } 2366
vendor: 8,664 bytes, lines 2366-2580
2366 } 2367 } 2368 2369 // Render a line into the hidden node display.externalMeasured. Used 2370 // when measurement is needed for a line that's not in the viewport. 2371 function updateExternalMeasurement(cm, line) { 2372 line = visualLine(line); 2373 var lineN = lineNo(line); 2374 var view = cm.display.externalMeasured = new LineView(cm.doc, line, lineN); 2375 view.lineN = lineN; 2376 var built = view.built = buildLineContent(cm, view); 2377 view.text = built.pre; 2378 removeChildrenAndAdd(cm.display.lineMeasure, built.pre); 2379 return view 2380 } 2381 2382 // Get a {top, bottom, left, right} box (in line-local coordinates) 2383 // for a given character. 2384 function measureChar(cm, line, ch, bias) { 2385 return measureCharPrepared(cm, prepareMeasureForLine(cm, line), ch, bias) 2386 } 2387 2388 // Find a line view that corresponds to the given line number. 2389 function findViewForLine(cm, lineN) { 2390 if (lineN >= cm.display.viewFrom && lineN < cm.display.viewTo) 2391 { return cm.display.view[findViewIndex(cm, lineN)] } 2392 var ext = cm.display.externalMeasured; 2393 if (ext && lineN >= ext.lineN && lineN < ext.lineN + ext.size) 2394 { return ext } 2395 } 2396 2397 // Measurement can be split in two steps, the set-up work that 2398 // applies to the whole line, and the measurement of the actual 2399 // character. Functions like coordsChar, that need to do a lot of 2400 // measurements in a row, can thus ensure that the set-up work is 2401 // only done once. 2402 function prepareMeasureForLine(cm, line) { 2403 var lineN = lineNo(line); 2404 var view = findViewForLine(cm, lineN); 2405 if (view && !view.text) { 2406 view = null; 2407 } else if (view && view.changes) { 2408 updateLineForChanges(cm, view, lineN, getDimensions(cm)); 2409 cm.curOp.forceUpdate = true; 2410 } 2411 if (!view) 2412 { view = updateExternalMeasurement(cm, line); } 2413 2414 var info = mapFromLineView(view, line, lineN); 2415 return { 2416 line: line, view: view, rect: null, 2417 map: info.map, cache: info.cache, before: info.before, 2418 hasHeights: false 2419 } 2420 } 2421 2422 // Given a prepared measurement object, measures the position of an 2423 // actual character (or fetches it from the cache). 2424 function measureCharPrepared(cm, prepared, ch, bias, varHeight) { 2425 if (prepared.before) { ch = -1; } 2426 var key = ch + (bias || ""), found; 2427 if (prepared.cache.hasOwnProperty(key)) { 2428 found = prepared.cache[key]; 2429 } else { 2430 if (!prepared.rect) 2431 { prepared.rect = prepared.view.text.getBoundingClientRect(); } 2432 if (!prepared.hasHeights) { 2433 ensureLineHeights(cm, prepared.view, prepared.rect); 2434 prepared.hasHeights = true; 2435 } 2436 found = measureCharInner(cm, prepared, ch, bias); 2437 if (!found.bogus) { prepared.cache[key] = found; } 2438 } 2439 return {left: found.left, right: found.right, 2440 top: varHeight ? found.rtop : found.top, 2441 bottom: varHeight ? found.rbottom : found.bottom} 2442 } 2443 2444 var nullRect = {left: 0, right: 0, top: 0, bottom: 0}; 2445 2446 function nodeAndOffsetInLineMap(map, ch, bias) { 2447 var node, start, end, collapse, mStart, mEnd; 2448 // First, search the line map for the text node corresponding to, 2449 // or closest to, the target character. 2450 for (var i = 0; i < map.length; i += 3) { 2451 mStart = map[i]; 2452 mEnd = map[i + 1]; 2453 if (ch < mStart) { 2454 start = 0; end = 1; 2455 collapse = "left"; 2456 } else if (ch < mEnd) { 2457 start = ch - mStart; 2458 end = start + 1; 2459 } else if (i == map.length - 3 || ch == mEnd && map[i + 3] > ch) { 2460 end = mEnd - mStart; 2461 start = end - 1; 2462 if (ch >= mEnd) { collapse = "right"; } 2463 } 2464 if (start != null) { 2465 node = map[i + 2]; 2466 if (mStart == mEnd && bias == (node.insertLeft ? "left" : "right")) 2467 { collapse = bias; } 2468 if (bias == "left" && start == 0) 2469 { while (i && map[i - 2] == map[i - 3] && map[i - 1].insertLeft) { 2470 node = map[(i -= 3) + 2]; 2471 collapse = "left"; 2472 } } 2473 if (bias == "right" && start == mEnd - mStart) 2474 { while (i < map.length - 3 && map[i + 3] == map[i + 4] && !map[i + 5].insertLeft) { 2475 node = map[(i += 3) + 2]; 2476 collapse = "right"; 2477 } } 2478 break 2479 } 2480 } 2481 return {node: node, start: start, end: end, collapse: collapse, coverStart: mStart, coverEnd: mEnd} 2482 } 2483 2484 function getUsefulRect(rects, bias) { 2485 var rect = nullRect; 2486 if (bias == "left") { for (var i = 0; i < rects.length; i++) { 2487 if ((rect = rects[i]).left != rect.right) { break } 2488 } } else { for (var i$1 = rects.length - 1; i$1 >= 0; i$1--) { 2489 if ((rect = rects[i$1]).left != rect.right) { break } 2490 } } 2491 return rect 2492 } 2493 2494 function measureCharInner(cm, prepared, ch, bias) { 2495 var place = nodeAndOffsetInLineMap(prepared.map, ch, bias); 2496 var node = place.node, start = place.start, end = place.end, collapse = place.collapse; 2497 2498 var rect; 2499 if (node.nodeType == 3) { // If it is a text node, use a range to retrieve the coordinates. 2500 for (var i$1 = 0; i$1 < 4; i$1++) { // Retry a maximum of 4 times when nonsense rectangles are returned 2501 while (start && isExtendingChar(prepared.line.text.charAt(place.coverStart + start))) { --start; } 2502 while (place.coverStart + end < place.coverEnd && isExtendingChar(prepared.line.text.charAt(place.coverStart + end))) { ++end; } 2503 if (ie && ie_version < 9 && start == 0 && end == place.coverEnd - place.coverStart) 2504 { rect = node.parentNode.getBoundingClientRect(); } 2505 else 2506 { rect = getUsefulRect(range(node, start, end).getClientRects(), bias); } 2507 if (rect.left || rect.right || start == 0) { break } 2508 end = start; 2509 start = start - 1; 2510 collapse = "right"; 2511 } 2512 if (ie && ie_version < 11) { rect = maybeUpdateRectForZooming(cm.display.measure, rect); } 2513 } else { // If it is a widget, simply get the box for the whole widget. 2514 if (start > 0) { collapse = bias = "right"; } 2515 var rects; 2516 if (cm.options.lineWrapping && (rects = node.getClientRects()).length > 1) 2517 { rect = rects[bias == "right" ? rects.length - 1 : 0]; } 2518 else 2519 { rect = node.getBoundingClientRect(); } 2520 } 2521 if (ie && ie_version < 9 && !start && (!rect || !rect.left && !rect.right)) { 2522 var rSpan = node.parentNode.getClientRects()[0]; 2523 if (rSpan) 2524 { rect = {left: rSpan.left, right: rSpan.left + charWidth(cm.display), top: rSpan.top, bottom: rSpan.bottom}; } 2525 else 2526 { rect = nullRect; } 2527 } 2528 2529 var rtop = rect.top - prepared.rect.top, rbot = rect.bottom - prepared.rect.top; 2530 var mid = (rtop + rbot) / 2; 2531 var heights = prepared.view.measure.heights; 2532 var i = 0; 2533 for (; i < heights.length - 1; i++) 2534 { if (mid < heights[i]) { break } } 2535 var top = i ? heights[i - 1] : 0, bot = heights[i]; 2536 var result = {left: (collapse == "right" ? rect.right : rect.left) - prepared.rect.left, 2537 right: (collapse == "left" ? rect.left : rect.right) - prepared.rect.left, 2538 top: top, bottom: bot}; 2539 if (!rect.left && !rect.right) { result.bogus = true; } 2540 if (!cm.options.singleCursorHeightPerLine) { result.rtop = rtop; result.rbottom = rbot; } 2541 2542 return result 2543 } 2544 2545 // Work around problem with bounding client rects on ranges being 2546 // returned incorrectly when zoomed on IE10 and below. 2547 function maybeUpdateRectForZooming(measure, rect) { 2548 if (!window.screen || screen.logicalXDPI == null || 2549 screen.logicalXDPI == screen.deviceXDPI || !hasBadZoomedRects(measure)) 2550 { return rect } 2551 var scaleX = screen.logicalXDPI / screen.deviceXDPI; 2552 var scaleY = screen.logicalYDPI / screen.deviceYDPI; 2553 return {left: rect.left * scaleX, right: rect.right * scaleX, 2554 top: rect.top * scaleY, bottom: rect.bottom * scaleY} 2555 } 2556 2557 function clearLineMeasurementCacheFor(lineView) { 2558 if (lineView.measure) { 2559 lineView.measure.cache = {}; 2560 lineView.measure.heights = null; 2561 if (lineView.rest) { for (var i = 0; i < lineView.rest.length; i++) 2562 { lineView.measure.caches[i] = {}; } } 2563 } 2564 } 2565 2566 function clearLineMeasurementCache(cm) { 2567 cm.display.externalMeasure = null; 2568 removeChildren(cm.display.lineMeasure); 2569 for (var i = 0; i < cm.display.view.length; i++) 2570 { clearLineMeasurementCacheFor(cm.display.view[i]); } 2571 } 2572 2573 function clearCaches(cm) { 2574 clearLineMeasurementCache(cm); 2575 cm.display.cachedCharWidth = cm.display.cachedTextHeight = cm.display.cachedPaddingH = null; 2576 if (!cm.options.lineWrapping) { cm.display.maxLineChanged = true; } 2577 cm.display.lineNumChars = null; 2578 } 2579 2580 function pageScrollX(
2580doc) { 2581 // Work around https://bugs.chromium.org/p/chromium/issues/detail?id=489206 2582 // which causes page_Offset and bounding client rects to use 2583 // different reference viewports and invalidate our calculations. 2584 if (chrome && android) { return -(doc.body.getBoundingClientRect().left - parseInt(getComputedStyle(doc.body).marginLeft)) } 2585 return doc.defaultView.pageXOffset || (doc.documentElement || doc.body).scrollLeft 2586 } 2587 function pageScrollY(doc) { 2588 if (chrome && android) { return -(doc.body.getBoundingClientRect().top - parseInt(getComputedStyle(doc.body).marginTop)) } 2589 return doc.defaultView.pageYOffset || (doc.documentElement || doc.body).scrollTop 2590 } 2591 2592 function widgetTopHeight(lineObj) {
vendor: 1,694 bytes, lines 2593-2633
2593 var ref = visualLine(lineObj); 2594 var widgets = ref.widgets; 2595 var height = 0; 2596 if (widgets) { for (var i = 0; i < widgets.length; ++i) { if (widgets[i].above) 2597 { height += widgetHeight(widgets[i]); } } } 2598 return height 2599 } 2600 2601 // Converts a {top, bottom, left, right} box from line-local 2602 // coordinates into another coordinate system. Context may be one of 2603 // "line", "div" (display.lineDiv), "local"./null (editor), "window", 2604 // or "page". 2605 function intoCoordSystem(cm, lineObj, rect, context, includeWidgets) { 2606 if (!includeWidgets) { 2607 var height = widgetTopHeight(lineObj); 2608 rect.top += height; rect.bottom += height; 2609 } 2610 if (context == "line") { return rect } 2611 if (!context) { context = "local"; } 2612 var yOff = heightAtLine(lineObj); 2613 if (context == "local") { yOff += paddingTop(cm.display); } 2614 else { yOff -= cm.display.viewOffset; } 2615 if (context == "page" || context == "window") { 2616 var lOff = cm.display.lineSpace.getBoundingClientRect(); 2617 yOff += lOff.top + (context == "window" ? 0 : pageScrollY(doc(cm))); 2618 var xOff = lOff.left + (context == "window" ? 0 : pageScrollX(doc(cm))); 2619 rect.left += xOff; rect.right += xOff; 2620 } 2621 rect.top += yOff; rect.bottom += yOff; 2622 return rect 2623 } 2624 2625 // Coverts a box from "div" coords to another coordinate system. 2626 // Context may be "window", "page", "div", or "local"./null. 2627 function fromCoordSystem(cm, coords, context) { 2628 if (context == "div") { return coords } 2629 var left = coords.left, top = coords.top; 2630 // First move into "page" coordinate system 2631 if (context == "page") { 2632 left -= pageScrollX(doc(cm)); 2633 top -= pageScrollY(doc(cm)
vendor: 21,925 bytes, lines 2633-3162
2633); 2634 } else if (context == "local" || !context) { 2635 var localBox = cm.display.sizer.getBoundingClientRect(); 2636 left += localBox.left; 2637 top += localBox.top; 2638 } 2639 2640 var lineSpaceBox = cm.display.lineSpace.getBoundingClientRect(); 2641 return {left: left - lineSpaceBox.left, top: top - lineSpaceBox.top} 2642 } 2643 2644 function charCoords(cm, pos, context, lineObj, bias) { 2645 if (!lineObj) { lineObj = getLine(cm.doc, pos.line); } 2646 return intoCoordSystem(cm, lineObj, measureChar(cm, lineObj, pos.ch, bias), context) 2647 } 2648 2649 // Returns a box for a given cursor position, which may have an 2650 // 'other' property containing the position of the secondary cursor 2651 // on a bidi boundary. 2652 // A cursor Pos(line, char, "before") is on the same visual line as `char - 1` 2653 // and after `char - 1` in writing order of `char - 1` 2654 // A cursor Pos(line, char, "after") is on the same visual line as `char` 2655 // and before `char` in writing order of `char` 2656 // Examples (upper-case letters are RTL, lower-case are LTR): 2657 // Pos(0, 1, ...) 2658 // before after 2659 // ab a|b a|b 2660 // aB a|B aB| 2661 // Ab |Ab A|b 2662 // AB B|A B|A 2663 // Every position after the last character on a line is considered to stick 2664 // to the last character on the line. 2665 function cursorCoords(cm, pos, context, lineObj, preparedMeasure, varHeight) { 2666 lineObj = lineObj || getLine(cm.doc, pos.line); 2667 if (!preparedMeasure) { preparedMeasure = prepareMeasureForLine(cm, lineObj); } 2668 function get(ch, right) { 2669 var m = measureCharPrepared(cm, preparedMeasure, ch, right ? "right" : "left", varHeight); 2670 if (right) { m.left = m.right; } else { m.right = m.left; } 2671 return intoCoordSystem(cm, lineObj, m, context) 2672 } 2673 var order = getOrder(lineObj, cm.doc.direction), ch = pos.ch, sticky = pos.sticky; 2674 if (ch >= lineObj.text.length) { 2675 ch = lineObj.text.length; 2676 sticky = "before"; 2677 } else if (ch <= 0) { 2678 ch = 0; 2679 sticky = "after"; 2680 } 2681 if (!order) { return get(sticky == "before" ? ch - 1 : ch, sticky == "before") } 2682 2683 function getBidi(ch, partPos, invert) { 2684 var part = order[partPos], right = part.level == 1; 2685 return get(invert ? ch - 1 : ch, right != invert) 2686 } 2687 var partPos = getBidiPartAt(order, ch, sticky); 2688 var other = bidiOther; 2689 var val = getBidi(ch, partPos, sticky == "before"); 2690 if (other != null) { val.other = getBidi(ch, other, sticky != "before"); } 2691 return val 2692 } 2693 2694 // Used to cheaply estimate the coordinates for a position. Used for 2695 // intermediate scroll updates. 2696 function estimateCoords(cm, pos) { 2697 var left = 0; 2698 pos = clipPos(cm.doc, pos); 2699 if (!cm.options.lineWrapping) { left = charWidth(cm.display) * pos.ch; } 2700 var lineObj = getLine(cm.doc, pos.line); 2701 var top = heightAtLine(lineObj) + paddingTop(cm.display); 2702 return {left: left, right: left, top: top, bottom: top + lineObj.height} 2703 } 2704 2705 // Positions returned by coordsChar contain some extra information. 2706 // xRel is the relative x position of the input coordinates compared 2707 // to the found position (so xRel > 0 means the coordinates are to 2708 // the right of the character position, for example). When outside 2709 // is true, that means the coordinates lie outside the line's 2710 // vertical range. 2711 function PosWithInfo(line, ch, sticky, outside, xRel) { 2712 var pos = Pos(line, ch, sticky); 2713 pos.xRel = xRel; 2714 if (outside) { pos.outside = outside; } 2715 return pos 2716 } 2717 2718 // Compute the character position closest to the given coordinates. 2719 // Input must be lineSpace-local ("div" coordinate system). 2720 function coordsChar(cm, x, y) { 2721 var doc = cm.doc; 2722 y += cm.display.viewOffset; 2723 if (y < 0) { return PosWithInfo(doc.first, 0, null, -1, -1) } 2724 var lineN = lineAtHeight(doc, y), last = doc.first + doc.size - 1; 2725 if (lineN > last) 2726 { return PosWithInfo(doc.first + doc.size - 1, getLine(doc, last).text.length, null, 1, 1) } 2727 if (x < 0) { x = 0; } 2728 2729 var lineObj = getLine(doc, lineN); 2730 for (;;) { 2731 var found = coordsCharInner(cm, lineObj, lineN, x, y); 2732 var collapsed = collapsedSpanAround(lineObj, found.ch + (found.xRel > 0 || found.outside > 0 ? 1 : 0)); 2733 if (!collapsed) { return found } 2734 var rangeEnd = collapsed.find(1); 2735 if (rangeEnd.line == lineN) { return rangeEnd } 2736 lineObj = getLine(doc, lineN = rangeEnd.line); 2737 } 2738 } 2739 2740 function wrappedLineExtent(cm, lineObj, preparedMeasure, y) { 2741 y -= widgetTopHeight(lineObj); 2742 var end = lineObj.text.length; 2743 var begin = findFirst(function (ch) { return measureCharPrepared(cm, preparedMeasure, ch - 1).bottom <= y; }, end, 0); 2744 end = findFirst(function (ch) { return measureCharPrepared(cm, preparedMeasure, ch).top > y; }, begin, end); 2745 return {begin: begin, end: end} 2746 } 2747 2748 function wrappedLineExtentChar(cm, lineObj, preparedMeasure, target) { 2749 if (!preparedMeasure) { preparedMeasure = prepareMeasureForLine(cm, lineObj); } 2750 var targetTop = intoCoordSystem(cm, lineObj, measureCharPrepared(cm, preparedMeasure, target), "line").top; 2751 return wrappedLineExtent(cm, lineObj, preparedMeasure, targetTop) 2752 } 2753 2754 // Returns true if the given side of a box is after the given 2755 // coordinates, in top-to-bottom, left-to-right order. 2756 function boxIsAfter(box, x, y, left) { 2757 return box.bottom <= y ? false : box.top > y ? true : (left ? box.left : box.right) > x 2758 } 2759 2760 function coordsCharInner(cm, lineObj, lineNo, x, y) { 2761 // Move y into line-local coordinate space 2762 y -= heightAtLine(lineObj); 2763 var preparedMeasure = prepareMeasureForLine(cm, lineObj); 2764 // When directly calling `measureCharPrepared`, we have to adjust 2765 // for the widgets at this line. 2766 var widgetHeight = widgetTopHeight(lineObj); 2767 var begin = 0, end = lineObj.text.length, ltr = true; 2768 2769 var order = getOrder(lineObj, cm.doc.direction); 2770 // If the line isn't plain left-to-right text, first figure out 2771 // which bidi section the coordinates fall into. 2772 if (order) { 2773 var part = (cm.options.lineWrapping ? coordsBidiPartWrapped : coordsBidiPart) 2774 (cm, lineObj, lineNo, preparedMeasure, order, x, y); 2775 ltr = part.level != 1; 2776 // The awkward -1 offsets are needed because findFirst (called 2777 // on these below) will treat its first bound as inclusive, 2778 // second as exclusive, but we want to actually address the 2779 // characters in the part's range 2780 begin = ltr ? part.from : part.to - 1; 2781 end = ltr ? part.to : part.from - 1; 2782 } 2783 2784 // A binary search to find the first character whose bounding box 2785 // starts after the coordinates. If we run across any whose box wrap 2786 // the coordinates, store that. 2787 var chAround = null, boxAround = null; 2788 var ch = findFirst(function (ch) { 2789 var box = measureCharPrepared(cm, preparedMeasure, ch); 2790 box.top += widgetHeight; box.bottom += widgetHeight; 2791 if (!boxIsAfter(box, x, y, false)) { return false } 2792 if (box.top <= y && box.left <= x) { 2793 chAround = ch; 2794 boxAround = box; 2795 } 2796 return true 2797 }, begin, end); 2798 2799 var baseX, sticky, outside = false; 2800 // If a box around the coordinates was found, use that 2801 if (boxAround) { 2802 // Distinguish coordinates nearer to the left or right side of the box 2803 var atLeft = x - boxAround.left < boxAround.right - x, atStart = atLeft == ltr; 2804 ch = chAround + (atStart ? 0 : 1); 2805 sticky = atStart ? "after" : "before"; 2806 baseX = atLeft ? boxAround.left : boxAround.right; 2807 } else { 2808 // (Adjust for extended bound, if necessary.) 2809 if (!ltr && (ch == end || ch == begin)) { ch++; } 2810 // To determine which side to associate with, get the box to the 2811 // left of the character and compare it's vertical position to the 2812 // coordinates 2813 sticky = ch == 0 ? "after" : ch == lineObj.text.length ? "before" : 2814 (measureCharPrepared(cm, preparedMeasure, ch - (ltr ? 1 : 0)).bottom + widgetHeight <= y) == ltr ? 2815 "after" : "before"; 2816 // Now get accurate coordinates for this place, in order to get a 2817 // base X position 2818 var coords = cursorCoords(cm, Pos(lineNo, ch, sticky), "line", lineObj, preparedMeasure); 2819 baseX = coords.left; 2820 outside = y < coords.top ? -1 : y >= coords.bottom ? 1 : 0; 2821 } 2822 2823 ch = skipExtendingChars(lineObj.text, ch, 1); 2824 return PosWithInfo(lineNo, ch, sticky, outside, x - baseX) 2825 } 2826 2827 function coordsBidiPart(cm, lineObj, lineNo, preparedMeasure, order, x, y) { 2828 // Bidi parts are sorted left-to-right, and in a non-line-wrapping 2829 // situation, we can take this ordering to correspond to the visual 2830 // ordering. This finds the first part whose end is after the given 2831 // coordinates. 2832 var index = findFirst(function (i) { 2833 var part = order[i], ltr = part.level != 1; 2834 return boxIsAfter(cursorCoords(cm, Pos(lineNo, ltr ? part.to : part.from, ltr ? "before" : "after"), 2835 "line", lineObj, preparedMeasure), x, y, true) 2836 }, 0, order.length - 1); 2837 var part = order[index]; 2838 // If this isn't the first part, the part's start is also after 2839 // the coordinates, and the coordinates aren't on the same line as 2840 // that start, move one part back. 2841 if (index > 0) { 2842 var ltr = part.level != 1; 2843 var start = cursorCoords(cm, Pos(lineNo, ltr ? part.from : part.to, ltr ? "after" : "before"), 2844 "line", lineObj, preparedMeasure); 2845 if (boxIsAfter(start, x, y, true) && start.top > y) 2846 { part = order[index - 1]; } 2847 } 2848 return part 2849 } 2850 2851 function coordsBidiPartWrapped(cm, lineObj, _lineNo, preparedMeasure, order, x, y) { 2852 // In a wrapped line, rtl text on wrapping boundaries can do things 2853 // that don't correspond to the ordering in our `order` array at 2854 // all, so a binary search doesn't work, and we want to return a 2855 // part that only spans one line so that the binary search in 2856 // coordsCharInner is safe. As such, we first find the extent of the 2857 // wrapped line, and then do a flat search in which we discard any 2858 // spans that aren't on the line. 2859 var ref = wrappedLineExtent(cm, lineObj, preparedMeasure, y); 2860 var begin = ref.begin; 2861 var end = ref.end; 2862 if (/\s/.test(lineObj.text.charAt(end - 1))) { end--; } 2863 var part = null, closestDist = null; 2864 for (var i = 0; i < order.length; i++) { 2865 var p = order[i]; 2866 if (p.from >= end || p.to <= begin) { continue } 2867 var ltr = p.level != 1; 2868 var endX = measureCharPrepared(cm, preparedMeasure, ltr ? Math.min(end, p.to) - 1 : Math.max(begin, p.from)).right; 2869 // Weigh against spans ending before this, so that they are only 2870 // picked if nothing ends after 2871 var dist = endX < x ? x - endX + 1e9 : endX - x; 2872 if (!part || closestDist > dist) { 2873 part = p; 2874 closestDist = dist; 2875 } 2876 } 2877 if (!part) { part = order[order.length - 1]; } 2878 // Clip the part to the wrapped line. 2879 if (part.from < begin) { part = {from: begin, to: part.to, level: part.level}; } 2880 if (part.to > end) { part = {from: part.from, to: end, level: part.level}; } 2881 return part 2882 } 2883 2884 var measureText; 2885 // Compute the default text height. 2886 function textHeight(display) { 2887 if (display.cachedTextHeight != null) { return display.cachedTextHeight } 2888 if (measureText == null) { 2889 measureText = elt("pre", null, "CodeMirror-line-like"); 2890 // Measure a bunch of lines, for browsers that compute 2891 // fractional heights. 2892 for (var i = 0; i < 49; ++i) { 2893 measureText.appendChild(document.createTextNode("x")); 2894 measureText.appendChild(elt("br")); 2895 } 2896 measureText.appendChild(document.createTextNode("x")); 2897 } 2898 removeChildrenAndAdd(display.measure, measureText); 2899 var height = measureText.offsetHeight / 50; 2900 if (height > 3) { display.cachedTextHeight = height; } 2901 removeChildren(display.measure); 2902 return height || 1 2903 } 2904 2905 // Compute the default character width. 2906 function charWidth(display) { 2907 if (display.cachedCharWidth != null) { return display.cachedCharWidth } 2908 var anchor = elt("span", "xxxxxxxxxx"); 2909 var pre = elt("pre", [anchor], "CodeMirror-line-like"); 2910 removeChildrenAndAdd(display.measure, pre); 2911 var rect = anchor.getBoundingClientRect(), width = (rect.right - rect.left) / 10; 2912 if (width > 2) { display.cachedCharWidth = width; } 2913 return width || 10 2914 } 2915 2916 // Do a bulk-read of the DOM positions and sizes needed to draw the 2917 // view, so that we don't interleave reading and writing to the DOM. 2918 function getDimensions(cm) { 2919 var d = cm.display, left = {}, width = {}; 2920 var gutterLeft = d.gutters.clientLeft; 2921 for (var n = d.gutters.firstChild, i = 0; n; n = n.nextSibling, ++i) { 2922 var id = cm.display.gutterSpecs[i].className; 2923 left[id] = n.offsetLeft + n.clientLeft + gutterLeft; 2924 width[id] = n.clientWidth; 2925 } 2926 return {fixedPos: compensateForHScroll(d), 2927 gutterTotalWidth: d.gutters.offsetWidth, 2928 gutterLeft: left, 2929 gutterWidth: width, 2930 wrapperWidth: d.wrapper.clientWidth} 2931 } 2932 2933 // Computes display.scroller.scrollLeft + display.gutters.offsetWidth, 2934 // but using getBoundingClientRect to get a sub-pixel-accurate 2935 // result. 2936 function compensateForHScroll(display) { 2937 return display.scroller.getBoundingClientRect().left - display.sizer.getBoundingClientRect().left 2938 } 2939 2940 // Returns a function that estimates the height of a line, to use as 2941 // first approximation until the line becomes visible (and is thus 2942 // properly measurable). 2943 function estimateHeight(cm) { 2944 var th = textHeight(cm.display), wrapping = cm.options.lineWrapping; 2945 var perLine = wrapping && Math.max(5, cm.display.scroller.clientWidth / charWidth(cm.display) - 3); 2946 return function (line) { 2947 if (lineIsHidden(cm.doc, line)) { return 0 } 2948 2949 var widgetsHeight = 0; 2950 if (line.widgets) { for (var i = 0; i < line.widgets.length; i++) { 2951 if (line.widgets[i].height) { widgetsHeight += line.widgets[i].height; } 2952 } } 2953 2954 if (wrapping) 2955 { return widgetsHeight + (Math.ceil(line.text.length / perLine) || 1) * th } 2956 else 2957 { return widgetsHeight + th } 2958 } 2959 } 2960 2961 function estimateLineHeights(cm) { 2962 var doc = cm.doc, est = estimateHeight(cm); 2963 doc.iter(function (line) { 2964 var estHeight = est(line); 2965 if (estHeight != line.height) { updateLineHeight(line, estHeight); } 2966 }); 2967 } 2968 2969 // Given a mouse event, find the corresponding position. If liberal 2970 // is false, it checks whether a gutter or scrollbar was clicked, 2971 // and returns null if it was. forRect is used by rectangular 2972 // selections, and tries to estimate a character position even for 2973 // coordinates beyond the right of the text. 2974 function posFromMouse(cm, e, liberal, forRect) { 2975 var display = cm.display; 2976 if (!liberal && e_target(e).getAttribute("cm-not-content") == "true") { return null } 2977 2978 var x, y, space = display.lineSpace.getBoundingClientRect(); 2979 // Fails unpredictably on IE[67] when mouse is dragged around quickly. 2980 try { x = e.clientX - space.left; y = e.clientY - space.top; } 2981 catch (e$1) { return null } 2982 var coords = coordsChar(cm, x, y), line; 2983 if (forRect && coords.xRel > 0 && (line = getLine(cm.doc, coords.line).text).length == coords.ch) { 2984 var colDiff = countColumn(line, line.length, cm.options.tabSize) - line.length; 2985 coords = Pos(coords.line, Math.max(0, Math.round((x - paddingH(cm.display).left) / charWidth(cm.display)) - colDiff)); 2986 } 2987 return coords 2988 } 2989 2990 // Find the view element corresponding to a given line. Return null 2991 // when the line isn't visible. 2992 function findViewIndex(cm, n) { 2993 if (n >= cm.display.viewTo) { return null } 2994 n -= cm.display.viewFrom; 2995 if (n < 0) { return null } 2996 var view = cm.display.view; 2997 for (var i = 0; i < view.length; i++) { 2998 n -= view[i].size; 2999 if (n < 0) { return i } 3000 } 3001 } 3002 3003 // Updates the display.view data structure for a given change to the 3004 // document. From and to are in pre-change coordinates. Lendiff is 3005 // the amount of lines added or subtracted by the change. This is 3006 // used for changes that span multiple lines, or change the way 3007 // lines are divided into visual lines. regLineChange (below) 3008 // registers single-line changes. 3009 function regChange(cm, from, to, lendiff) { 3010 if (from == null) { from = cm.doc.first; } 3011 if (to == null) { to = cm.doc.first + cm.doc.size; } 3012 if (!lendiff) { lendiff = 0; } 3013 3014 var display = cm.display; 3015 if (lendiff && to < display.viewTo && 3016 (display.updateLineNumbers == null || display.updateLineNumbers > from)) 3017 { display.updateLineNumbers = from; } 3018 3019 cm.curOp.viewChanged = true; 3020 3021 if (from >= display.viewTo) { // Change after 3022 if (sawCollapsedSpans && visualLineNo(cm.doc, from) < display.viewTo) 3023 { resetView(cm); } 3024 } else if (to <= display.viewFrom) { // Change before 3025 if (sawCollapsedSpans && visualLineEndNo(cm.doc, to + lendiff) > display.viewFrom) { 3026 resetView(cm); 3027 } else { 3028 display.viewFrom += lendiff; 3029 display.viewTo += lendiff; 3030 } 3031 } else if (from <= display.viewFrom && to >= display.viewTo) { // Full overlap 3032 resetView(cm); 3033 } else if (from <= display.viewFrom) { // Top overlap 3034 var cut = viewCuttingPoint(cm, to, to + lendiff, 1); 3035 if (cut) { 3036 display.view = display.view.slice(cut.index); 3037 display.viewFrom = cut.lineN; 3038 display.viewTo += lendiff; 3039 } else { 3040 resetView(cm); 3041 } 3042 } else if (to >= display.viewTo) { // Bottom overlap 3043 var cut$1 = viewCuttingPoint(cm, from, from, -1); 3044 if (cut$1) { 3045 display.view = display.view.slice(0, cut$1.index); 3046 display.viewTo = cut$1.lineN; 3047 } else { 3048 resetView(cm); 3049 } 3050 } else { // Gap in the middle 3051 var cutTop = viewCuttingPoint(cm, from, from, -1); 3052 var cutBot = viewCuttingPoint(cm, to, to + lendiff, 1); 3053 if (cutTop && cutBot) { 3054 display.view = display.view.slice(0, cutTop.index) 3055 .concat(buildViewArray(cm, cutTop.lineN, cutBot.lineN)) 3056 .concat(display.view.slice(cutBot.index)); 3057 display.viewTo += lendiff; 3058 } else { 3059 resetView(cm); 3060 } 3061 } 3062 3063 var ext = display.externalMeasured; 3064 if (ext) { 3065 if (to < ext.lineN) 3066 { ext.lineN += lendiff; } 3067 else if (from < ext.lineN + ext.size) 3068 { display.externalMeasured = null; } 3069 } 3070 } 3071 3072 // Register a change to a single line. Type must be one of "text", 3073 // "gutter", "class", "widget" 3074 function regLineChange(cm, line, type) { 3075 cm.curOp.viewChanged = true; 3076 var display = cm.display, ext = cm.display.externalMeasured; 3077 if (ext && line >= ext.lineN && line < ext.lineN + ext.size) 3078 { display.externalMeasured = null; } 3079 3080 if (line < display.viewFrom || line >= display.viewTo) { return } 3081 var lineView = display.view[findViewIndex(cm, line)]; 3082 if (lineView.node == null) { return } 3083 var arr = lineView.changes || (lineView.changes = []); 3084 if (indexOf(arr, type) == -1) { arr.push(type); } 3085 } 3086 3087 // Clear the view. 3088 function resetView(cm) { 3089 cm.display.viewFrom = cm.display.viewTo = cm.doc.first; 3090 cm.display.view = []; 3091 cm.display.viewOffset = 0; 3092 } 3093 3094 function viewCuttingPoint(cm, oldN, newN, dir) { 3095 var index = findViewIndex(cm, oldN), diff, view = cm.display.view; 3096 if (!sawCollapsedSpans || newN == cm.doc.first + cm.doc.size) 3097 { return {index: index, lineN: newN} } 3098 var n = cm.display.viewFrom; 3099 for (var i = 0; i < index; i++) 3100 { n += view[i].size; } 3101 if (n != oldN) { 3102 if (dir > 0) { 3103 if (index == view.length - 1) { return null } 3104 diff = (n + view[index].size) - oldN; 3105 index++; 3106 } else { 3107 diff = n - oldN; 3108 } 3109 oldN += diff; newN += diff; 3110 } 3111 while (visualLineNo(cm.doc, newN) != newN) { 3112 if (index == (dir < 0 ? 0 : view.length - 1)) { return null } 3113 newN += dir * view[index - (dir < 0 ? 1 : 0)].size; 3114 index += dir; 3115 } 3116 return {index: index, lineN: newN} 3117 } 3118 3119 // Force the view to cover a given range, adding empty view element 3120 // or clipping off existing ones as needed. 3121 function adjustView(cm, from, to) { 3122 var display = cm.display, view = display.view; 3123 if (view.length == 0 || from >= display.viewTo || to <= display.viewFrom) { 3124 display.view = buildViewArray(cm, from, to); 3125 display.viewFrom = from; 3126 } else { 3127 if (display.viewFrom > from) 3128 { display.view = buildViewArray(cm, from, display.viewFrom).concat(display.view); } 3129 else if (display.viewFrom < from) 3130 { display.view = display.view.slice(findViewIndex(cm, from)); } 3131 display.viewFrom = from; 3132 if (display.viewTo < to) 3133 { display.view = display.view.concat(buildViewArray(cm, display.viewTo, to)); } 3134 else if (display.viewTo > to) 3135 { display.view = display.view.slice(0, findViewIndex(cm, to)); } 3136 } 3137 display.viewTo = to; 3138 } 3139 3140 // Count the number of lines in the view whose DOM representation is 3141 // out of date (or nonexistent). 3142 function countDirtyView(cm) { 3143 var view = cm.display.view, dirty = 0; 3144 for (var i = 0; i < view.length; i++) { 3145 var lineView = view[i]; 3146 if (!lineView.hidden && (!lineView.node || lineView.changes)) { ++dirty; } 3147 } 3148 return dirty 3149 } 3150 3151 function updateSelection(cm) { 3152 cm.display.input.showSelection(cm.display.input.prepareSelection()); 3153 } 3154 3155 function prepareSelection(cm, primary) { 3156 if ( primary === void 0 ) primary = true; 3157 3158 var doc = cm.doc, result = {}; 3159 var curFragment = result.cursors = document.createDocumentFragment(); 3160 var selFragment = result.selection = document.createDocumentFragment(); 3161 3162
3162var customCursor = cm.options.$customCursor; 3163 if (customCursor) { primary = true; } 3164 for (var i = 0; i < doc.sel.ranges.length; i++) { 3165 if (!primary && i == doc.sel.primIndex) { continue } 3166 var range = doc.sel.ranges[i]; 3167 if (range.from().line >
vendor: 4,104 bytes, lines 3167-3252
3167= cm.display.viewTo || range.to().line < cm.display.viewFrom) { continue } 3168 var collapsed = range.empty(); 3169 if (customCursor) { 3170 var head = customCursor(cm, range); 3171 if (head) { drawSelectionCursor(cm, head, curFragment); } 3172 } else if (collapsed || cm.options.showCursorWhenSelecting) { 3173 drawSelectionCursor(cm, range.head, curFragment); 3174 } 3175 if (!collapsed) 3176 { drawSelectionRange(cm, range, selFragment); } 3177 } 3178 return result 3179 } 3180 3181 // Draws a cursor for the given range 3182 function drawSelectionCursor(cm, head, output) { 3183 var pos = cursorCoords(cm, head, "div", null, null, !cm.options.singleCursorHeightPerLine); 3184 3185 var cursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor")); 3186 cursor.style.left = pos.left + "px"; 3187 cursor.style.top = pos.top + "px"; 3188 cursor.style.height = Math.max(0, pos.bottom - pos.top) * cm.options.cursorHeight + "px"; 3189 3190 if (/\bcm-fat-cursor\b/.test(cm.getWrapperElement().className)) { 3191 var charPos = charCoords(cm, head, "div", null, null); 3192 var width = charPos.right - charPos.left; 3193 cursor.style.width = (width > 0 ? width : cm.defaultCharWidth()) + "px"; 3194 } 3195 3196 if (pos.other) { 3197 // Secondary cursor, shown when on a 'jump' in bi-directional text 3198 var otherCursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor CodeMirror-secondarycursor")); 3199 otherCursor.style.display = ""; 3200 otherCursor.style.left = pos.other.left + "px"; 3201 otherCursor.style.top = pos.other.top + "px"; 3202 otherCursor.style.height = (pos.other.bottom - pos.other.top) * .85 + "px"; 3203 } 3204 } 3205 3206 function cmpCoords(a, b) { return a.top - b.top || a.left - b.left } 3207 3208 // Draws the given range as a highlighted selection 3209 function drawSelectionRange(cm, range, output) { 3210 var display = cm.display, doc = cm.doc; 3211 var fragment = document.createDocumentFragment(); 3212 var padding = paddingH(cm.display), leftSide = padding.left; 3213 var rightSide = Math.max(display.sizerWidth, displayWidth(cm) - display.sizer.offsetLeft) - padding.right; 3214 var docLTR = doc.direction == "ltr"; 3215 3216 function add(left, top, width, bottom) { 3217 if (top < 0) { top = 0; } 3218 top = Math.round(top); 3219 bottom = Math.round(bottom); 3220 fragment.appendChild(elt("div", null, "CodeMirror-selected", ("position: absolute; left: " + left + "px;\n top: " + top + "px; width: " + (width == null ? rightSide - left : width) + "px;\n height: " + (bottom - top) + "px"))); 3221 } 3222 3223 function drawForLine(line, fromArg, toArg) { 3224 var lineObj = getLine(doc, line); 3225 var lineLen = lineObj.text.length; 3226 var start, end; 3227 function coords(ch, bias) { 3228 return charCoords(cm, Pos(line, ch), "div", lineObj, bias) 3229 } 3230 3231 function wrapX(pos, dir, side) { 3232 var extent = wrappedLineExtentChar(cm, lineObj, null, pos); 3233 var prop = (dir == "ltr") == (side == "after") ? "left" : "right"; 3234 var ch = side == "after" ? extent.begin : extent.end - (/\s/.test(lineObj.text.charAt(extent.end - 1)) ? 2 : 1); 3235 return coords(ch, prop)[prop] 3236 } 3237 3238 var order = getOrder(lineObj, doc.direction); 3239 iterateBidiSections(order, fromArg || 0, toArg == null ? lineLen : toArg, function (from, to, dir, i) { 3240 var ltr = dir == "ltr"; 3241 var fromPos = coords(from, ltr ? "left" : "right"); 3242 var toPos = coords(to - 1, ltr ? "right" : "left"); 3243 3244 var openStart = fromArg == null && from == 0, openEnd = toArg == null && to == lineLen; 3245 var first = i == 0, last = !order || i == order.length - 1; 3246 if (toPos.top - fromPos.top <= 3) { // Single line 3247 var openLeft = (docLTR ? openStart : openEnd) && first; 3248 var openRight = (docLTR ? openEnd : openStart) && last; 3249 var left = openLeft ? leftSide : (ltr ? fromPos : toPos).left; 3250 var right = openRight ? rightSide : (ltr ? toPos : fromPos).right; 3251 add(left, fromPos.top, right - left, fromPos.bottom); 3252 } else { // Multiple lines
vendor: 4,146 bytes, lines 3253-3356
3253 var topLeft, topRight, botLeft, botRight; 3254 if (ltr) { 3255 topLeft = docLTR && openStart && first ? leftSide : fromPos.left; 3256 topRight = docLTR ? rightSide : wrapX(from, dir, "before"); 3257 botLeft = docLTR ? leftSide : wrapX(to, dir, "after"); 3258 botRight = docLTR && openEnd && last ? rightSide : toPos.right; 3259 } else { 3260 topLeft = !docLTR ? leftSide : wrapX(from, dir, "before"); 3261 topRight = !docLTR && openStart && first ? rightSide : fromPos.right; 3262 botLeft = !docLTR && openEnd && last ? leftSide : toPos.left; 3263 botRight = !docLTR ? rightSide : wrapX(to, dir, "after"); 3264 } 3265 add(topLeft, fromPos.top, topRight - topLeft, fromPos.bottom); 3266 if (fromPos.bottom < toPos.top) { add(leftSide, fromPos.bottom, null, toPos.top); } 3267 add(botLeft, toPos.top, botRight - botLeft, toPos.bottom); 3268 } 3269 3270 if (!start || cmpCoords(fromPos, start) < 0) { start = fromPos; } 3271 if (cmpCoords(toPos, start) < 0) { start = toPos; } 3272 if (!end || cmpCoords(fromPos, end) < 0) { end = fromPos; } 3273 if (cmpCoords(toPos, end) < 0) { end = toPos; } 3274 }); 3275 return {start: start, end: end} 3276 } 3277 3278 var sFrom = range.from(), sTo = range.to(); 3279 if (sFrom.line == sTo.line) { 3280 drawForLine(sFrom.line, sFrom.ch, sTo.ch); 3281 } else { 3282 var fromLine = getLine(doc, sFrom.line), toLine = getLine(doc, sTo.line); 3283 var singleVLine = visualLine(fromLine) == visualLine(toLine); 3284 var leftEnd = drawForLine(sFrom.line, sFrom.ch, singleVLine ? fromLine.text.length + 1 : null).end; 3285 var rightStart = drawForLine(sTo.line, singleVLine ? 0 : null, sTo.ch).start; 3286 if (singleVLine) { 3287 if (leftEnd.top < rightStart.top - 2) { 3288 add(leftEnd.right, leftEnd.top, null, leftEnd.bottom); 3289 add(leftSide, rightStart.top, rightStart.left, rightStart.bottom); 3290 } else { 3291 add(leftEnd.right, leftEnd.top, rightStart.left - leftEnd.right, leftEnd.bottom); 3292 } 3293 } 3294 if (leftEnd.bottom < rightStart.top) 3295 { add(leftSide, leftEnd.bottom, null, rightStart.top); } 3296 } 3297 3298 output.appendChild(fragment); 3299 } 3300 3301 // Cursor-blinking 3302 function restartBlink(cm) { 3303 if (!cm.state.focused) { return } 3304 var display = cm.display; 3305 clearInterval(display.blinker); 3306 var on = true; 3307 display.cursorDiv.style.visibility = ""; 3308 if (cm.options.cursorBlinkRate > 0) 3309 { display.blinker = setInterval(function () { 3310 if (!cm.hasFocus()) { onBlur(cm); } 3311 display.cursorDiv.style.visibility = (on = !on) ? "" : "hidden"; 3312 }, cm.options.cursorBlinkRate); } 3313 else if (cm.options.cursorBlinkRate < 0) 3314 { display.cursorDiv.style.visibility = "hidden"; } 3315 } 3316 3317 function ensureFocus(cm) { 3318 if (!cm.hasFocus()) { 3319 cm.display.input.focus(); 3320 if (!cm.state.focused) { onFocus(cm); } 3321 } 3322 } 3323 3324 function delayBlurEvent(cm) { 3325 cm.state.delayingBlurEvent = true; 3326 setTimeout(function () { if (cm.state.delayingBlurEvent) { 3327 cm.state.delayingBlurEvent = false; 3328 if (cm.state.focused) { onBlur(cm); } 3329 } }, 100); 3330 } 3331 3332 function onFocus(cm, e) { 3333 if (cm.state.delayingBlurEvent && !cm.state.draggingText) { cm.state.delayingBlurEvent = false; } 3334 3335 if (cm.options.readOnly == "nocursor") { return } 3336 if (!cm.state.focused) { 3337 signal(cm, "focus", cm, e); 3338 cm.state.focused = true; 3339 addClass(cm.display.wrapper, "CodeMirror-focused"); 3340 // This test prevents this from firing when a context 3341 // menu is closed (since the input reset would kill the 3342 // select-all detection hack) 3343 if (!cm.curOp && cm.display.selForContextMenu != cm.doc.sel) { 3344 cm.display.input.reset(); 3345 if (webkit) { setTimeout(function () { return cm.display.input.reset(true); }, 20); } // Issue #1730 3346 } 3347 cm.display.input.receivedFocus(); 3348 } 3349 restartBlink(cm); 3350 } 3351 function onBlur(cm, e) { 3352 if (cm.state.delayingBlurEvent) { return } 3353 3354 if (cm.state.focused) { 3355 signal(cm, "blur", cm, e); 3356 cm.state.focused = false;
vendor: 5,401 bytes, lines 3357-3469
3357 rmClass(cm.display.wrapper, "CodeMirror-focused"); 3358 } 3359 clearInterval(cm.display.blinker); 3360 setTimeout(function () { if (!cm.state.focused) { cm.display.shift = false; } }, 150); 3361 } 3362 3363 // Read the actual heights of the rendered lines, and update their 3364 // stored heights to match. 3365 function updateHeightsInViewport(cm) { 3366 var display = cm.display; 3367 var prevBottom = display.lineDiv.offsetTop; 3368 var viewTop = Math.max(0, display.scroller.getBoundingClientRect().top); 3369 var oldHeight = display.lineDiv.getBoundingClientRect().top; 3370 var mustScroll = 0; 3371 for (var i = 0; i < display.view.length; i++) { 3372 var cur = display.view[i], wrapping = cm.options.lineWrapping; 3373 var height = (void 0), width = 0; 3374 if (cur.hidden) { continue } 3375 oldHeight += cur.line.height; 3376 if (ie && ie_version < 8) { 3377 var bot = cur.node.offsetTop + cur.node.offsetHeight; 3378 height = bot - prevBottom; 3379 prevBottom = bot; 3380 } else { 3381 var box = cur.node.getBoundingClientRect(); 3382 height = box.bottom - box.top; 3383 // Check that lines don't extend past the right of the current 3384 // editor width 3385 if (!wrapping && cur.text.firstChild) 3386 { width = cur.text.firstChild.getBoundingClientRect().right - box.left - 1; } 3387 } 3388 var diff = cur.line.height - height; 3389 if (diff > .005 || diff < -.005) { 3390 if (oldHeight < viewTop) { mustScroll -= diff; } 3391 updateLineHeight(cur.line, height); 3392 updateWidgetHeight(cur.line); 3393 if (cur.rest) { for (var j = 0; j < cur.rest.length; j++) 3394 { updateWidgetHeight(cur.rest[j]); } } 3395 } 3396 if (width > cm.display.sizerWidth) { 3397 var chWidth = Math.ceil(width / charWidth(cm.display)); 3398 if (chWidth > cm.display.maxLineLength) { 3399 cm.display.maxLineLength = chWidth; 3400 cm.display.maxLine = cur.line; 3401 cm.display.maxLineChanged = true; 3402 } 3403 } 3404 } 3405 if (Math.abs(mustScroll) > 2) { display.scroller.scrollTop += mustScroll; } 3406 } 3407 3408 // Read and store the height of line widgets associated with the 3409 // given line. 3410 function updateWidgetHeight(line) { 3411 if (line.widgets) { for (var i = 0; i < line.widgets.length; ++i) { 3412 var w = line.widgets[i], parent = w.node.parentNode; 3413 if (parent) { w.height = parent.offsetHeight; } 3414 } } 3415 } 3416 3417 // Compute the lines that are visible in a given viewport (defaults 3418 // the the current scroll position). viewport may contain top, 3419 // height, and ensure (see op.scrollToPos) properties. 3420 function visibleLines(display, doc, viewport) { 3421 var top = viewport && viewport.top != null ? Math.max(0, viewport.top) : display.scroller.scrollTop; 3422 top = Math.floor(top - paddingTop(display)); 3423 var bottom = viewport && viewport.bottom != null ? viewport.bottom : top + display.wrapper.clientHeight; 3424 3425 var from = lineAtHeight(doc, top), to = lineAtHeight(doc, bottom); 3426 // Ensure is a {from: {line, ch}, to: {line, ch}} object, and 3427 // forces those lines into the viewport (if possible). 3428 if (viewport && viewport.ensure) { 3429 var ensureFrom = viewport.ensure.from.line, ensureTo = viewport.ensure.to.line; 3430 if (ensureFrom < from) { 3431 from = ensureFrom; 3432 to = lineAtHeight(doc, heightAtLine(getLine(doc, ensureFrom)) + display.wrapper.clientHeight); 3433 } else if (Math.min(ensureTo, doc.lastLine()) >= to) { 3434 from = lineAtHeight(doc, heightAtLine(getLine(doc, ensureTo)) - display.wrapper.clientHeight); 3435 to = ensureTo; 3436 } 3437 } 3438 return {from: from, to: Math.max(to, from + 1)} 3439 } 3440 3441 // SCROLLING THINGS INTO VIEW 3442 3443 // If an editor sits on the top or bottom of the window, partially 3444 // scrolled out of view, this ensures that the cursor is visible. 3445 function maybeScrollWindow(cm, rect) { 3446 if (signalDOMEvent(cm, "scrollCursorIntoView")) { return } 3447 3448 var display = cm.display, box = display.sizer.getBoundingClientRect(), doScroll = null; 3449 var doc = display.wrapper.ownerDocument; 3450 if (rect.top + box.top < 0) { doScroll = true; } 3451 else if (rect.bottom + box.top > (doc.defaultView.innerHeight || doc.documentElement.clientHeight)) { doScroll = false; } 3452 if (doScroll != null && !phantom) { 3453 var scrollNode = elt("div", "\u200b", null, ("position: absolute;\n top: " + (rect.top - display.viewOffset - paddingTop(cm.display)) + "px;\n height: " + (rect.bottom - rect.top + scrollGap(cm) + display.barHeight) + "px;\n left: " + (rect.left) + "px; width: " + (Math.max(2, rect.right - rect.left)) + "px;")); 3454 cm.display.lineSpace.appendChild(scrollNode); 3455 scrollNode.scrollIntoView(doScroll); 3456 cm.display.lineSpace.removeChild(scrollNode); 3457 } 3458 } 3459 3460 // Scroll a given position into view (immediately), verifying that 3461 // it actually became visible (as line heights are accurately 3462 // measured, the position of something may 'drift' during drawing). 3463 function scrollPosIntoView(cm, pos, end, margin) { 3464 if (margin == null) { margin = 0; } 3465 var rect; 3466 if (!cm.options.lineWrapping && pos == end) { 3467 // Set pos and end to the cursor positions around the character pos sticks to 3468 // If pos.sticky == "before", that is around pos.ch - 1, otherwise around pos.ch 3469 // If pos == Pos(_, 0, "before"), pos and end are unchanged
vendor: 6,216 bytes, lines 3470-3609
3470 end = pos.sticky == "before" ? Pos(pos.line, pos.ch + 1, "before") : pos; 3471 pos = pos.ch ? Pos(pos.line, pos.sticky == "before" ? pos.ch - 1 : pos.ch, "after") : pos; 3472 } 3473 for (var limit = 0; limit < 5; limit++) { 3474 var changed = false; 3475 var coords = cursorCoords(cm, pos); 3476 var endCoords = !end || end == pos ? coords : cursorCoords(cm, end); 3477 rect = {left: Math.min(coords.left, endCoords.left), 3478 top: Math.min(coords.top, endCoords.top) - margin, 3479 right: Math.max(coords.left, endCoords.left), 3480 bottom: Math.max(coords.bottom, endCoords.bottom) + margin}; 3481 var scrollPos = calculateScrollPos(cm, rect); 3482 var startTop = cm.doc.scrollTop, startLeft = cm.doc.scrollLeft; 3483 if (scrollPos.scrollTop != null) { 3484 updateScrollTop(cm, scrollPos.scrollTop); 3485 if (Math.abs(cm.doc.scrollTop - startTop) > 1) { changed = true; } 3486 } 3487 if (scrollPos.scrollLeft != null) { 3488 setScrollLeft(cm, scrollPos.scrollLeft); 3489 if (Math.abs(cm.doc.scrollLeft - startLeft) > 1) { changed = true; } 3490 } 3491 if (!changed) { break } 3492 } 3493 return rect 3494 } 3495 3496 // Scroll a given set of coordinates into view (immediately). 3497 function scrollIntoView(cm, rect) { 3498 var scrollPos = calculateScrollPos(cm, rect); 3499 if (scrollPos.scrollTop != null) { updateScrollTop(cm, scrollPos.scrollTop); } 3500 if (scrollPos.scrollLeft != null) { setScrollLeft(cm, scrollPos.scrollLeft); } 3501 } 3502 3503 // Calculate a new scroll position needed to scroll the given 3504 // rectangle into view. Returns an object with scrollTop and 3505 // scrollLeft properties. When these are undefined, the 3506 // vertical/horizontal position does not need to be adjusted. 3507 function calculateScrollPos(cm, rect) { 3508 var display = cm.display, snapMargin = textHeight(cm.display); 3509 if (rect.top < 0) { rect.top = 0; } 3510 var screentop = cm.curOp && cm.curOp.scrollTop != null ? cm.curOp.scrollTop : display.scroller.scrollTop; 3511 var screen = displayHeight(cm), result = {}; 3512 if (rect.bottom - rect.top > screen) { rect.bottom = rect.top + screen; } 3513 var docBottom = cm.doc.height + paddingVert(display); 3514 var atTop = rect.top < snapMargin, atBottom = rect.bottom > docBottom - snapMargin; 3515 if (rect.top < screentop) { 3516 result.scrollTop = atTop ? 0 : rect.top; 3517 } else if (rect.bottom > screentop + screen) { 3518 var newTop = Math.min(rect.top, (atBottom ? docBottom : rect.bottom) - screen); 3519 if (newTop != screentop) { result.scrollTop = newTop; } 3520 } 3521 3522 var gutterSpace = cm.options.fixedGutter ? 0 : display.gutters.offsetWidth; 3523 var screenleft = cm.curOp && cm.curOp.scrollLeft != null ? cm.curOp.scrollLeft : display.scroller.scrollLeft - gutterSpace; 3524 var screenw = displayWidth(cm) - display.gutters.offsetWidth; 3525 var tooWide = rect.right - rect.left > screenw; 3526 if (tooWide) { rect.right = rect.left + screenw; } 3527 if (rect.left < 10) 3528 { result.scrollLeft = 0; } 3529 else if (rect.left < screenleft) 3530 { result.scrollLeft = Math.max(0, rect.left + gutterSpace - (tooWide ? 0 : 10)); } 3531 else if (rect.right > screenw + screenleft - 3) 3532 { result.scrollLeft = rect.right + (tooWide ? 0 : 10) - screenw; } 3533 return result 3534 } 3535 3536 // Store a relative adjustment to the scroll position in the current 3537 // operation (to be applied when the operation finishes). 3538 function addToScrollTop(cm, top) { 3539 if (top == null) { return } 3540 resolveScrollToPos(cm); 3541 cm.curOp.scrollTop = (cm.curOp.scrollTop == null ? cm.doc.scrollTop : cm.curOp.scrollTop) + top; 3542 } 3543 3544 // Make sure that at the end of the operation the current cursor is 3545 // shown. 3546 function ensureCursorVisible(cm) { 3547 resolveScrollToPos(cm); 3548 var cur = cm.getCursor(); 3549 cm.curOp.scrollToPos = {from: cur, to: cur, margin: cm.options.cursorScrollMargin}; 3550 } 3551 3552 function scrollToCoords(cm, x, y) { 3553 if (x != null || y != null) { resolveScrollToPos(cm); } 3554 if (x != null) { cm.curOp.scrollLeft = x; } 3555 if (y != null) { cm.curOp.scrollTop = y; } 3556 } 3557 3558 function scrollToRange(cm, range) { 3559 resolveScrollToPos(cm); 3560 cm.curOp.scrollToPos = range; 3561 } 3562 3563 // When an operation has its scrollToPos property set, and another 3564 // scroll action is applied before the end of the operation, this 3565 // 'simulates' scrolling that position into view in a cheap way, so 3566 // that the effect of intermediate scroll commands is not ignored. 3567 function resolveScrollToPos(cm) { 3568 var range = cm.curOp.scrollToPos; 3569 if (range) { 3570 cm.curOp.scrollToPos = null; 3571 var from = estimateCoords(cm, range.from), to = estimateCoords(cm, range.to); 3572 scrollToCoordsRange(cm, from, to, range.margin); 3573 } 3574 } 3575 3576 function scrollToCoordsRange(cm, from, to, margin) { 3577 var sPos = calculateScrollPos(cm, { 3578 left: Math.min(from.left, to.left), 3579 top: Math.min(from.top, to.top) - margin, 3580 right: Math.max(from.right, to.right), 3581 bottom: Math.max(from.bottom, to.bottom) + margin 3582 }); 3583 scrollToCoords(cm, sPos.scrollLeft, sPos.scrollTop); 3584 } 3585 3586 // Sync the scrollable area and scrollbars, ensure the viewport 3587 // covers the visible area. 3588 function updateScrollTop(cm, val) { 3589 if (Math.abs(cm.doc.scrollTop - val) < 2) { return } 3590 if (!gecko) { updateDisplaySimple(cm, {top: val}); } 3591 setScrollTop(cm, val, true); 3592 if (gecko) { updateDisplaySimple(cm); } 3593 startWorker(cm, 100); 3594 } 3595 3596 function setScrollTop(cm, val, forceScroll) { 3597 val = Math.max(0, Math.min(cm.display.scroller.scrollHeight - cm.display.scroller.clientHeight, val)); 3598 if (cm.display.scroller.scrollTop == val && !forceScroll) { return } 3599 cm.doc.scrollTop = val; 3600 cm.display.scrollbars.setScrollTop(val); 3601 if (cm.display.scroller.scrollTop != val) { cm.display.scroller.scrollTop = val; } 3602 } 3603 3604 // Sync scroller and scrollbar, ensure the gutter elements are 3605 // aligned. 3606 function setScrollLeft(cm, val, isScroller, forceScroll) { 3607 val = Math.max(0, Math.min(val, cm.display.scroller.scrollWidth - cm.display.scroller.clientWidth)); 3608 if ((isScroller ? val == cm.doc.scrollLeft : Math.abs(cm.doc.scrollLeft - val) < 2) && !forceScroll) { return } 3609 cm.doc.scrollLeft = val;
vendor: 4,815 bytes, lines 3610-3722
3610 alignHorizontally(cm); 3611 if (cm.display.scroller.scrollLeft != val) { cm.display.scroller.scrollLeft = val; } 3612 cm.display.scrollbars.setScrollLeft(val); 3613 } 3614 3615 // SCROLLBARS 3616 3617 // Prepare DOM reads needed to update the scrollbars. Done in one 3618 // shot to minimize update/measure roundtrips. 3619 function measureForScrollbars(cm) { 3620 var d = cm.display, gutterW = d.gutters.offsetWidth; 3621 var docH = Math.round(cm.doc.height + paddingVert(cm.display)); 3622 return { 3623 clientHeight: d.scroller.clientHeight, 3624 viewHeight: d.wrapper.clientHeight, 3625 scrollWidth: d.scroller.scrollWidth, clientWidth: d.scroller.clientWidth, 3626 viewWidth: d.wrapper.clientWidth, 3627 barLeft: cm.options.fixedGutter ? gutterW : 0, 3628 docHeight: docH, 3629 scrollHeight: docH + scrollGap(cm) + d.barHeight, 3630 nativeBarWidth: d.nativeBarWidth, 3631 gutterWidth: gutterW 3632 } 3633 } 3634 3635 var NativeScrollbars = function(place, scroll, cm) { 3636 this.cm = cm; 3637 var vert = this.vert = elt("div", [elt("div", null, null, "min-width: 1px")], "CodeMirror-vscrollbar"); 3638 var horiz = this.horiz = elt("div", [elt("div", null, null, "height: 100%; min-height: 1px")], "CodeMirror-hscrollbar"); 3639 vert.tabIndex = horiz.tabIndex = -1; 3640 place(vert); place(horiz); 3641 3642 on(vert, "scroll", function () { 3643 if (vert.clientHeight) { scroll(vert.scrollTop, "vertical"); } 3644 }); 3645 on(horiz, "scroll", function () { 3646 if (horiz.clientWidth) { scroll(horiz.scrollLeft, "horizontal"); } 3647 }); 3648 3649 this.checkedZeroWidth = false; 3650 // Need to set a minimum width to see the scrollbar on IE7 (but must not set it on IE8). 3651 if (ie && ie_version < 8) { this.horiz.style.minHeight = this.vert.style.minWidth = "18px"; } 3652 }; 3653 3654 NativeScrollbars.prototype.update = function (measure) { 3655 var needsH = measure.scrollWidth > measure.clientWidth + 1; 3656 var needsV = measure.scrollHeight > measure.clientHeight + 1; 3657 var sWidth = measure.nativeBarWidth; 3658 3659 if (needsV) { 3660 this.vert.style.display = "block"; 3661 this.vert.style.bottom = needsH ? sWidth + "px" : "0"; 3662 var totalHeight = measure.viewHeight - (needsH ? sWidth : 0); 3663 // A bug in IE8 can cause this value to be negative, so guard it. 3664 this.vert.firstChild.style.height = 3665 Math.max(0, measure.scrollHeight - measure.clientHeight + totalHeight) + "px"; 3666 } else { 3667 this.vert.scrollTop = 0; 3668 this.vert.style.display = ""; 3669 this.vert.firstChild.style.height = "0"; 3670 } 3671 3672 if (needsH) { 3673 this.horiz.style.display = "block"; 3674 this.horiz.style.right = needsV ? sWidth + "px" : "0"; 3675 this.horiz.style.left = measure.barLeft + "px"; 3676 var totalWidth = measure.viewWidth - measure.barLeft - (needsV ? sWidth : 0); 3677 this.horiz.firstChild.style.width = 3678 Math.max(0, measure.scrollWidth - measure.clientWidth + totalWidth) + "px"; 3679 } else { 3680 this.horiz.style.display = ""; 3681 this.horiz.firstChild.style.width = "0"; 3682 } 3683 3684 if (!this.checkedZeroWidth && measure.clientHeight > 0) { 3685 if (sWidth == 0) { this.zeroWidthHack(); } 3686 this.checkedZeroWidth = true; 3687 } 3688 3689 return {right: needsV ? sWidth : 0, bottom: needsH ? sWidth : 0} 3690 }; 3691 3692 NativeScrollbars.prototype.setScrollLeft = function (pos) { 3693 if (this.horiz.scrollLeft != pos) { this.horiz.scrollLeft = pos; } 3694 if (this.disableHoriz) { this.enableZeroWidthBar(this.horiz, this.disableHoriz, "horiz"); } 3695 }; 3696 3697 NativeScrollbars.prototype.setScrollTop = function (pos) { 3698 if (this.vert.scrollTop != pos) { this.vert.scrollTop = pos; } 3699 if (this.disableVert) { this.enableZeroWidthBar(this.vert, this.disableVert, "vert"); } 3700 }; 3701 3702 NativeScrollbars.prototype.zeroWidthHack = function () { 3703 var w = mac && !mac_geMountainLion ? "12px" : "18px"; 3704 this.horiz.style.height = this.vert.style.width = w; 3705 this.horiz.style.visibility = this.vert.style.visibility = "hidden"; 3706 this.disableHoriz = new Delayed; 3707 this.disableVert = new Delayed; 3708 }; 3709 3710 NativeScrollbars.prototype.enableZeroWidthBar = function (bar, delay, type) { 3711 bar.style.visibility = ""; 3712 function maybeDisable() { 3713 // To find out whether the scrollbar is still visible, we 3714 // check whether the element under the pixel in the bottom 3715 // right corner of the scrollbar box is the scrollbar box 3716 // itself (when the bar is still visible) or its filler child 3717 // (when the bar is hidden). If it is still visible, we keep 3718 // it enabled, if it's hidden, we disable pointer events. 3719 var box = bar.getBoundingClientRect(); 3720 var elt = type == "vert" ? document.elementFromPoint(box.right - 1, (box.top + box.bottom) / 2) 3721 : document.elementFromPoint((box.right + box.left) / 2, box.bottom - 1); 3722 if (elt != bar) { bar.style.visibility = "hidden
vendor: 7,769 bytes, lines 3722-3903
3722"; } 3723 else { delay.set(1000, maybeDisable); } 3724 } 3725 delay.set(1000, maybeDisable); 3726 }; 3727 3728 NativeScrollbars.prototype.clear = function () { 3729 var parent = this.horiz.parentNode; 3730 parent.removeChild(this.horiz); 3731 parent.removeChild(this.vert); 3732 }; 3733 3734 var NullScrollbars = function () {}; 3735 3736 NullScrollbars.prototype.update = function () { return {bottom: 0, right: 0} }; 3737 NullScrollbars.prototype.setScrollLeft = function () {}; 3738 NullScrollbars.prototype.setScrollTop = function () {}; 3739 NullScrollbars.prototype.clear = function () {}; 3740 3741 function updateScrollbars(cm, measure) { 3742 if (!measure) { measure = measureForScrollbars(cm); } 3743 var startWidth = cm.display.barWidth, startHeight = cm.display.barHeight; 3744 updateScrollbarsInner(cm, measure); 3745 for (var i = 0; i < 4 && startWidth != cm.display.barWidth || startHeight != cm.display.barHeight; i++) { 3746 if (startWidth != cm.display.barWidth && cm.options.lineWrapping) 3747 { updateHeightsInViewport(cm); } 3748 updateScrollbarsInner(cm, measureForScrollbars(cm)); 3749 startWidth = cm.display.barWidth; startHeight = cm.display.barHeight; 3750 } 3751 } 3752 3753 // Re-synchronize the fake scrollbars with the actual size of the 3754 // content. 3755 function updateScrollbarsInner(cm, measure) { 3756 var d = cm.display; 3757 var sizes = d.scrollbars.update(measure); 3758 3759 d.sizer.style.paddingRight = (d.barWidth = sizes.right) + "px"; 3760 d.sizer.style.paddingBottom = (d.barHeight = sizes.bottom) + "px"; 3761 d.heightForcer.style.borderBottom = sizes.bottom + "px solid transparent"; 3762 3763 if (sizes.right && sizes.bottom) { 3764 d.scrollbarFiller.style.display = "block"; 3765 d.scrollbarFiller.style.height = sizes.bottom + "px"; 3766 d.scrollbarFiller.style.width = sizes.right + "px"; 3767 } else { d.scrollbarFiller.style.display = ""; } 3768 if (sizes.bottom && cm.options.coverGutterNextToScrollbar && cm.options.fixedGutter) { 3769 d.gutterFiller.style.display = "block"; 3770 d.gutterFiller.style.height = sizes.bottom + "px"; 3771 d.gutterFiller.style.width = measure.gutterWidth + "px"; 3772 } else { d.gutterFiller.style.display = ""; } 3773 } 3774 3775 var scrollbarModel = {"native": NativeScrollbars, "null": NullScrollbars}; 3776 3777 function initScrollbars(cm) { 3778 if (cm.display.scrollbars) { 3779 cm.display.scrollbars.clear(); 3780 if (cm.display.scrollbars.addClass) 3781 { rmClass(cm.display.wrapper, cm.display.scrollbars.addClass); } 3782 } 3783 3784 cm.display.scrollbars = new scrollbarModel[cm.options.scrollbarStyle](function (node) { 3785 cm.display.wrapper.insertBefore(node, cm.display.scrollbarFiller); 3786 // Prevent clicks in the scrollbars from killing focus 3787 on(node, "mousedown", function () { 3788 if (cm.state.focused) { setTimeout(function () { return cm.display.input.focus(); }, 0); } 3789 }); 3790 node.setAttribute("cm-not-content", "true"); 3791 }, function (pos, axis) { 3792 if (axis == "horizontal") { setScrollLeft(cm, pos); } 3793 else { updateScrollTop(cm, pos); } 3794 }, cm); 3795 if (cm.display.scrollbars.addClass) 3796 { addClass(cm.display.wrapper, cm.display.scrollbars.addClass); } 3797 } 3798 3799 // Operations are used to wrap a series of changes to the editor 3800 // state in such a way that each change won't have to update the 3801 // cursor and display (which would be awkward, slow, and 3802 // error-prone). Instead, display updates are batched and then all 3803 // combined and executed at once. 3804 3805 var nextOpId = 0; 3806 // Start a new operation. 3807 function startOperation(cm) { 3808 cm.curOp = { 3809 cm: cm, 3810 viewChanged: false, // Flag that indicates that lines might need to be redrawn 3811 startHeight: cm.doc.height, // Used to detect need to update scrollbar 3812 forceUpdate: false, // Used to force a redraw 3813 updateInput: 0, // Whether to reset the input textarea 3814 typing: false, // Whether this reset should be careful to leave existing text (for compositing) 3815 changeObjs: null, // Accumulated changes, for firing change events 3816 cursorActivityHandlers: null, // Set of handlers to fire cursorActivity on 3817 cursorActivityCalled: 0, // Tracks which cursorActivity handlers have been called already 3818 selectionChanged: false, // Whether the selection needs to be redrawn 3819 updateMaxLine: false, // Set when the widest line needs to be determined anew 3820 scrollLeft: null, scrollTop: null, // Intermediate scroll position, not pushed to DOM yet 3821 scrollToPos: null, // Used to scroll to a specific position 3822 focus: false, 3823 id: ++nextOpId, // Unique ID 3824 markArrays: null // Used by addMarkedSpan 3825 }; 3826 pushOperation(cm.curOp); 3827 } 3828 3829 // Finish an operation, updating the display and signalling delayed events 3830 function endOperation(cm) { 3831 var op = cm.curOp; 3832 if (op) { finishOperation(op, function (group) { 3833 for (var i = 0; i < group.ops.length; i++) 3834 { group.ops[i].cm.curOp = null; } 3835 endOperations(group); 3836 }); } 3837 } 3838 3839 // The DOM updates done when an operation finishes are batched so 3840 // that the minimum number of relayouts are required. 3841 function endOperations(group) { 3842 var ops = group.ops; 3843 for (var i = 0; i < ops.length; i++) // Read DOM 3844 { endOperation_R1(ops[i]); } 3845 for (var i$1 = 0; i$1 < ops.length; i$1++) // Write DOM (maybe) 3846 { endOperation_W1(ops[i$1]); } 3847 for (var i$2 = 0; i$2 < ops.length; i$2++) // Read DOM 3848 { endOperation_R2(ops[i$2]); } 3849 for (var i$3 = 0; i$3 < ops.length; i$3++) // Write DOM (maybe) 3850 { endOperation_W2(ops[i$3]); } 3851 for (var i$4 = 0; i$4 < ops.length; i$4++) // Read DOM 3852 { endOperation_finish(ops[i$4]); } 3853 } 3854 3855 function endOperation_R1(op) { 3856 var cm = op.cm, display = cm.display; 3857 maybeClipScrollbars(cm); 3858 if (op.updateMaxLine) { findMaxLine(cm); } 3859 3860 op.mustUpdate = op.viewChanged || op.forceUpdate || op.scrollTop != null || 3861 op.scrollToPos && (op.scrollToPos.from.line < display.viewFrom || 3862 op.scrollToPos.to.line >= display.viewTo) || 3863 display.maxLineChanged && cm.options.lineWrapping; 3864 op.update = op.mustUpdate && 3865 new DisplayUpdate(cm, op.mustUpdate && {top: op.scrollTop, ensure: op.scrollToPos}, op.forceUpdate); 3866 } 3867 3868 function endOperation_W1(op) { 3869 op.updatedDisplay = op.mustUpdate && updateDisplayIfNeeded(op.cm, op.update); 3870 } 3871 3872 function endOperation_R2(op) { 3873 var cm = op.cm, display = cm.display; 3874 if (op.updatedDisplay) { updateHeightsInViewport(cm); } 3875 3876 op.barMeasure = measureForScrollbars(cm); 3877 3878 // If the max line changed since it was last measured, measure it, 3879 // and ensure the document's width matches it. 3880 // updateDisplay_W2 will use these properties to do the actual resizing 3881 if (display.maxLineChanged && !cm.options.lineWrapping) { 3882 op.adjustWidthTo = measureChar(cm, display.maxLine, display.maxLine.text.length).left + 3; 3883 cm.display.sizerWidth = op.adjustWidthTo; 3884 op.barMeasure.scrollWidth = 3885 Math.max(display.scroller.clientWidth, display.sizer.offsetLeft + op.adjustWidthTo + scrollGap(cm) + cm.display.barWidth); 3886 op.maxScrollLeft = Math.max(0, display.sizer.offsetLeft + op.adjustWidthTo - displayWidth(cm)); 3887 } 3888 3889 if (op.updatedDisplay || op.selectionChanged) 3890 { op.preparedSelection = display.input.prepareSelection(); } 3891 } 3892 3893 function endOperation_W2(op) { 3894 var cm = op.cm; 3895 3896 if (op.adjustWidthTo != null) { 3897 cm.display.sizer.style.minWidth = op.adjustWidthTo + "px"; 3898 if (op.maxScrollLeft < cm.doc.scrollLeft) 3899 { setScrollLeft(cm, Math.min(cm.display.scroller.scrollLeft, op.maxScrollLeft), true); } 3900 cm.display.maxLineChanged = false; 3901 } 3902 3903 var takeFocus = op.focus && op.focus == activeElt(
3903doc(cm)
vendor: 6,824 bytes, lines 3903-4080
3903); 3904 if (op.preparedSelection) 3905 { cm.display.input.showSelection(op.preparedSelection, takeFocus); } 3906 if (op.updatedDisplay || op.startHeight != cm.doc.height) 3907 { updateScrollbars(cm, op.barMeasure); } 3908 if (op.updatedDisplay) 3909 { setDocumentHeight(cm, op.barMeasure); } 3910 3911 if (op.selectionChanged) { restartBlink(cm); } 3912 3913 if (cm.state.focused && op.updateInput) 3914 { cm.display.input.reset(op.typing); } 3915 if (takeFocus) { ensureFocus(op.cm); } 3916 } 3917 3918 function endOperation_finish(op) { 3919 var cm = op.cm, display = cm.display, doc = cm.doc; 3920 3921 if (op.updatedDisplay) { postUpdateDisplay(cm, op.update); } 3922 3923 // Abort mouse wheel delta measurement, when scrolling explicitly 3924 if (display.wheelStartX != null && (op.scrollTop != null || op.scrollLeft != null || op.scrollToPos)) 3925 { display.wheelStartX = display.wheelStartY = null; } 3926 3927 // Propagate the scroll position to the actual DOM scroller 3928 if (op.scrollTop != null) { setScrollTop(cm, op.scrollTop, op.forceScroll); } 3929 3930 if (op.scrollLeft != null) { setScrollLeft(cm, op.scrollLeft, true, true); } 3931 // If we need to scroll a specific position into view, do so. 3932 if (op.scrollToPos) { 3933 var rect = scrollPosIntoView(cm, clipPos(doc, op.scrollToPos.from), 3934 clipPos(doc, op.scrollToPos.to), op.scrollToPos.margin); 3935 maybeScrollWindow(cm, rect); 3936 } 3937 3938 // Fire events for markers that are hidden/unidden by editing or 3939 // undoing 3940 var hidden = op.maybeHiddenMarkers, unhidden = op.maybeUnhiddenMarkers; 3941 if (hidden) { for (var i = 0; i < hidden.length; ++i) 3942 { if (!hidden[i].lines.length) { signal(hidden[i], "hide"); } } } 3943 if (unhidden) { for (var i$1 = 0; i$1 < unhidden.length; ++i$1) 3944 { if (unhidden[i$1].lines.length) { signal(unhidden[i$1], "unhide"); } } } 3945 3946 if (display.wrapper.offsetHeight) 3947 { doc.scrollTop = cm.display.scroller.scrollTop; } 3948 3949 // Fire change events, and delayed event handlers 3950 if (op.changeObjs) 3951 { signal(cm, "changes", cm, op.changeObjs); } 3952 if (op.update) 3953 { op.update.finish(); } 3954 } 3955 3956 // Run the given function in an operation 3957 function runInOp(cm, f) { 3958 if (cm.curOp) { return f() } 3959 startOperation(cm); 3960 try { return f() } 3961 finally { endOperation(cm); } 3962 } 3963 // Wraps a function in an operation. Returns the wrapped function. 3964 function operation(cm, f) { 3965 return function() { 3966 if (cm.curOp) { return f.apply(cm, arguments) } 3967 startOperation(cm); 3968 try { return f.apply(cm, arguments) } 3969 finally { endOperation(cm); } 3970 } 3971 } 3972 // Used to add methods to editor and doc instances, wrapping them in 3973 // operations. 3974 function methodOp(f) { 3975 return function() { 3976 if (this.curOp) { return f.apply(this, arguments) } 3977 startOperation(this); 3978 try { return f.apply(this, arguments) } 3979 finally { endOperation(this); } 3980 } 3981 } 3982 function docMethodOp(f) { 3983 return function() { 3984 var cm = this.cm; 3985 if (!cm || cm.curOp) { return f.apply(this, arguments) } 3986 startOperation(cm); 3987 try { return f.apply(this, arguments) } 3988 finally { endOperation(cm); } 3989 } 3990 } 3991 3992 // HIGHLIGHT WORKER 3993 3994 function startWorker(cm, time) { 3995 if (cm.doc.highlightFrontier < cm.display.viewTo) 3996 { cm.state.highlight.set(time, bind(highlightWorker, cm)); } 3997 } 3998 3999 function highlightWorker(cm) { 4000 var doc = cm.doc; 4001 if (doc.highlightFrontier >= cm.display.viewTo) { return } 4002 var end = +new Date + cm.options.workTime; 4003 var context = getContextBefore(cm, doc.highlightFrontier); 4004 var changedLines = []; 4005 4006 doc.iter(context.line, Math.min(doc.first + doc.size, cm.display.viewTo + 500), function (line) { 4007 if (context.line >= cm.display.viewFrom) { // Visible 4008 var oldStyles = line.styles; 4009 var resetState = line.text.length > cm.options.maxHighlightLength ? copyState(doc.mode, context.state) : null; 4010 var highlighted = highlightLine(cm, line, context, true); 4011 if (resetState) { context.state = resetState; } 4012 line.styles = highlighted.styles; 4013 var oldCls = line.styleClasses, newCls = highlighted.classes; 4014 if (newCls) { line.styleClasses = newCls; } 4015 else if (oldCls) { line.styleClasses = null; } 4016 var ischange = !oldStyles || oldStyles.length != line.styles.length || 4017 oldCls != newCls && (!oldCls || !newCls || oldCls.bgClass != newCls.bgClass || oldCls.textClass != newCls.textClass); 4018 for (var i = 0; !ischange && i < oldStyles.length; ++i) { ischange = oldStyles[i] != line.styles[i]; } 4019 if (ischange) { changedLines.push(context.line); } 4020 line.stateAfter = context.save(); 4021 context.nextLine(); 4022 } else { 4023 if (line.text.length <= cm.options.maxHighlightLength) 4024 { processLine(cm, line.text, context); } 4025 line.stateAfter = context.line % 5 == 0 ? context.save() : null; 4026 context.nextLine(); 4027 } 4028 if (+new Date > end) { 4029 startWorker(cm, cm.options.workDelay); 4030 return true 4031 } 4032 }); 4033 doc.highlightFrontier = context.line; 4034 doc.modeFrontier = Math.max(doc.modeFrontier, context.line); 4035 if (changedLines.length) { runInOp(cm, function () { 4036 for (var i = 0; i < changedLines.length; i++) 4037 { regLineChange(cm, changedLines[i], "text"); } 4038 }); } 4039 } 4040 4041 // DISPLAY DRAWING 4042 4043 var DisplayUpdate = function(cm, viewport, force) { 4044 var display = cm.display; 4045 4046 this.viewport = viewport; 4047 // Store some values that we'll need later (but don't want to force a relayout for) 4048 this.visible = visibleLines(display, cm.doc, viewport); 4049 this.editorIsHidden = !display.wrapper.offsetWidth; 4050 this.wrapperHeight = display.wrapper.clientHeight; 4051 this.wrapperWidth = display.wrapper.clientWidth; 4052 this.oldDisplayWidth = displayWidth(cm); 4053 this.force = force; 4054 this.dims = getDimensions(cm); 4055 this.events = []; 4056 }; 4057 4058 DisplayUpdate.prototype.signal = function (emitter, type) { 4059 if (hasHandler(emitter, type)) 4060 { this.events.push(arguments); } 4061 }; 4062 DisplayUpdate.prototype.finish = function () { 4063 for (var i = 0; i < this.events.length; i++) 4064 { signal.apply(null, this.events[i]); } 4065 }; 4066 4067 function maybeClipScrollbars(cm) { 4068 var display = cm.display; 4069 if (!display.scrollbarsClipped && display.scroller.offsetWidth) { 4070 display.nativeBarWidth = display.scroller.offsetWidth - display.scroller.clientWidth; 4071 display.heightForcer.style.height = scrollGap(cm) + "px"; 4072 display.sizer.style.marginBottom = -display.nativeBarWidth + "px"; 4073 display.sizer.style.borderRightWidth = scrollGap(cm) + "px"; 4074 display.scrollbarsClipped = true; 4075 } 4076 } 4077 4078 function selectionSnapshot(cm) { 4079 if (cm.hasFocus()) { return null } 4080 var active = activeElt(
vendor: 996 bytes, lines 4080-4101
4080doc(cm)); 4081 if (!active || !contains(cm.display.lineDiv, active)) { return null } 4082 var result = {activeElt: active}; 4083 if (window.getSelection) { 4084 var sel = win(cm).getSelection(); 4085 if (sel.anchorNode && sel.extend && contains(cm.display.lineDiv, sel.anchorNode)) { 4086 result.anchorNode = sel.anchorNode; 4087 result.anchorOffset = sel.anchorOffset; 4088 result.focusNode = sel.focusNode; 4089 result.focusOffset = sel.focusOffset; 4090 } 4091 } 4092 return result 4093 } 4094 4095 function restoreSelection(snapshot) { 4096 if (!snapshot || !snapshot.activeElt || snapshot.activeElt == activeElt(snapshot.activeElt.ownerDocument)) { return } 4097 snapshot.activeElt.focus(); 4098 if (!/^(INPUT|TEXTAREA)$/.test(snapshot.activeElt.nodeName) && 4099 snapshot.anchorNode && contains(document.body, snapshot.anchorNode) && contains(document.body, snapshot.focusNode)) { 4100 var doc = snapshot.activeElt.ownerDocument; 4101 var sel = doc.defaultView.getSelection(), range = doc
vendor: 13,784 bytes, lines 4101-4417
4101.createRange(); 4102 range.setEnd(snapshot.anchorNode, snapshot.anchorOffset); 4103 range.collapse(false); 4104 sel.removeAllRanges(); 4105 sel.addRange(range); 4106 sel.extend(snapshot.focusNode, snapshot.focusOffset); 4107 } 4108 } 4109 4110 // Does the actual updating of the line display. Bails out 4111 // (returning false) when there is nothing to be done and forced is 4112 // false. 4113 function updateDisplayIfNeeded(cm, update) { 4114 var display = cm.display, doc = cm.doc; 4115 4116 if (update.editorIsHidden) { 4117 resetView(cm); 4118 return false 4119 } 4120 4121 // Bail out if the visible area is already rendered and nothing changed. 4122 if (!update.force && 4123 update.visible.from >= display.viewFrom && update.visible.to <= display.viewTo && 4124 (display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo) && 4125 display.renderedView == display.view && countDirtyView(cm) == 0) 4126 { return false } 4127 4128 if (maybeUpdateLineNumberWidth(cm)) { 4129 resetView(cm); 4130 update.dims = getDimensions(cm); 4131 } 4132 4133 // Compute a suitable new viewport (from & to) 4134 var end = doc.first + doc.size; 4135 var from = Math.max(update.visible.from - cm.options.viewportMargin, doc.first); 4136 var to = Math.min(end, update.visible.to + cm.options.viewportMargin); 4137 if (display.viewFrom < from && from - display.viewFrom < 20) { from = Math.max(doc.first, display.viewFrom); } 4138 if (display.viewTo > to && display.viewTo - to < 20) { to = Math.min(end, display.viewTo); } 4139 if (sawCollapsedSpans) { 4140 from = visualLineNo(cm.doc, from); 4141 to = visualLineEndNo(cm.doc, to); 4142 } 4143 4144 var different = from != display.viewFrom || to != display.viewTo || 4145 display.lastWrapHeight != update.wrapperHeight || display.lastWrapWidth != update.wrapperWidth; 4146 adjustView(cm, from, to); 4147 4148 display.viewOffset = heightAtLine(getLine(cm.doc, display.viewFrom)); 4149 // Position the mover div to align with the current scroll position 4150 cm.display.mover.style.top = display.viewOffset + "px"; 4151 4152 var toUpdate = countDirtyView(cm); 4153 if (!different && toUpdate == 0 && !update.force && display.renderedView == display.view && 4154 (display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo)) 4155 { return false } 4156 4157 // For big changes, we hide the enclosing element during the 4158 // update, since that speeds up the operations on most browsers. 4159 var selSnapshot = selectionSnapshot(cm); 4160 if (toUpdate > 4) { display.lineDiv.style.display = "none"; } 4161 patchDisplay(cm, display.updateLineNumbers, update.dims); 4162 if (toUpdate > 4) { display.lineDiv.style.display = ""; } 4163 display.renderedView = display.view; 4164 // There might have been a widget with a focused element that got 4165 // hidden or updated, if so re-focus it. 4166 restoreSelection(selSnapshot); 4167 4168 // Prevent selection and cursors from interfering with the scroll 4169 // width and height. 4170 removeChildren(display.cursorDiv); 4171 removeChildren(display.selectionDiv); 4172 display.gutters.style.height = display.sizer.style.minHeight = 0; 4173 4174 if (different) { 4175 display.lastWrapHeight = update.wrapperHeight; 4176 display.lastWrapWidth = update.wrapperWidth; 4177 startWorker(cm, 400); 4178 } 4179 4180 display.updateLineNumbers = null; 4181 4182 return true 4183 } 4184 4185 function postUpdateDisplay(cm, update) { 4186 var viewport = update.viewport; 4187 4188 for (var first = true;; first = false) { 4189 if (!first || !cm.options.lineWrapping || update.oldDisplayWidth == displayWidth(cm)) { 4190 // Clip forced viewport to actual scrollable area. 4191 if (viewport && viewport.top != null) 4192 { viewport = {top: Math.min(cm.doc.height + paddingVert(cm.display) - displayHeight(cm), viewport.top)}; } 4193 // Updated line heights might result in the drawn area not 4194 // actually covering the viewport. Keep looping until it does. 4195 update.visible = visibleLines(cm.display, cm.doc, viewport); 4196 if (update.visible.from >= cm.display.viewFrom && update.visible.to <= cm.display.viewTo) 4197 { break } 4198 } else if (first) { 4199 update.visible = visibleLines(cm.display, cm.doc, viewport); 4200 } 4201 if (!updateDisplayIfNeeded(cm, update)) { break } 4202 updateHeightsInViewport(cm); 4203 var barMeasure = measureForScrollbars(cm); 4204 updateSelection(cm); 4205 updateScrollbars(cm, barMeasure); 4206 setDocumentHeight(cm, barMeasure); 4207 update.force = false; 4208 } 4209 4210 update.signal(cm, "update", cm); 4211 if (cm.display.viewFrom != cm.display.reportedViewFrom || cm.display.viewTo != cm.display.reportedViewTo) { 4212 update.signal(cm, "viewportChange", cm, cm.display.viewFrom, cm.display.viewTo); 4213 cm.display.reportedViewFrom = cm.display.viewFrom; cm.display.reportedViewTo = cm.display.viewTo; 4214 } 4215 } 4216 4217 function updateDisplaySimple(cm, viewport) { 4218 var update = new DisplayUpdate(cm, viewport); 4219 if (updateDisplayIfNeeded(cm, update)) { 4220 updateHeightsInViewport(cm); 4221 postUpdateDisplay(cm, update); 4222 var barMeasure = measureForScrollbars(cm); 4223 updateSelection(cm); 4224 updateScrollbars(cm, barMeasure); 4225 setDocumentHeight(cm, barMeasure); 4226 update.finish(); 4227 } 4228 } 4229 4230 // Sync the actual display DOM structure with display.view, removing 4231 // nodes for lines that are no longer in view, and creating the ones 4232 // that are not there yet, and updating the ones that are out of 4233 // date. 4234 function patchDisplay(cm, updateNumbersFrom, dims) { 4235 var display = cm.display, lineNumbers = cm.options.lineNumbers; 4236 var container = display.lineDiv, cur = container.firstChild; 4237 4238 function rm(node) { 4239 var next = node.nextSibling; 4240 // Works around a throw-scroll bug in OS X Webkit 4241 if (webkit && mac && cm.display.currentWheelTarget == node) 4242 { node.style.display = "none"; } 4243 else 4244 { node.parentNode.removeChild(node); } 4245 return next 4246 } 4247 4248 var view = display.view, lineN = display.viewFrom; 4249 // Loop over the elements in the view, syncing cur (the DOM nodes 4250 // in display.lineDiv) with the view as we go. 4251 for (var i = 0; i < view.length; i++) { 4252 var lineView = view[i]; 4253 if (lineView.hidden) ; else if (!lineView.node || lineView.node.parentNode != container) { // Not drawn yet 4254 var node = buildLineElement(cm, lineView, lineN, dims); 4255 container.insertBefore(node, cur); 4256 } else { // Already drawn 4257 while (cur != lineView.node) { cur = rm(cur); } 4258 var updateNumber = lineNumbers && updateNumbersFrom != null && 4259 updateNumbersFrom <= lineN && lineView.lineNumber; 4260 if (lineView.changes) { 4261 if (indexOf(lineView.changes, "gutter") > -1) { updateNumber = false; } 4262 updateLineForChanges(cm, lineView, lineN, dims); 4263 } 4264 if (updateNumber) { 4265 removeChildren(lineView.lineNumber); 4266 lineView.lineNumber.appendChild(document.createTextNode(lineNumberFor(cm.options, lineN))); 4267 } 4268 cur = lineView.node.nextSibling; 4269 } 4270 lineN += lineView.size; 4271 } 4272 while (cur) { cur = rm(cur); } 4273 } 4274 4275 function updateGutterSpace(display) { 4276 var width = display.gutters.offsetWidth; 4277 display.sizer.style.marginLeft = width + "px"; 4278 // Send an event to consumers responding to changes in gutter width. 4279 signalLater(display, "gutterChanged", display); 4280 } 4281 4282 function setDocumentHeight(cm, measure) { 4283 cm.display.sizer.style.minHeight = measure.docHeight + "px"; 4284 cm.display.heightForcer.style.top = measure.docHeight + "px"; 4285 cm.display.gutters.style.height = (measure.docHeight + cm.display.barHeight + scrollGap(cm)) + "px"; 4286 } 4287 4288 // Re-align line numbers and gutter marks to compensate for 4289 // horizontal scrolling. 4290 function alignHorizontally(cm) { 4291 var display = cm.display, view = display.view; 4292 if (!display.alignWidgets && (!display.gutters.firstChild || !cm.options.fixedGutter)) { return } 4293 var comp = compensateForHScroll(display) - display.scroller.scrollLeft + cm.doc.scrollLeft; 4294 var gutterW = display.gutters.offsetWidth, left = comp + "px"; 4295 for (var i = 0; i < view.length; i++) { if (!view[i].hidden) { 4296 if (cm.options.fixedGutter) { 4297 if (view[i].gutter) 4298 { view[i].gutter.style.left = left; } 4299 if (view[i].gutterBackground) 4300 { view[i].gutterBackground.style.left = left; } 4301 } 4302 var align = view[i].alignable; 4303 if (align) { for (var j = 0; j < align.length; j++) 4304 { align[j].style.left = left; } } 4305 } } 4306 if (cm.options.fixedGutter) 4307 { display.gutters.style.left = (comp + gutterW) + "px"; } 4308 } 4309 4310 // Used to ensure that the line number gutter is still the right 4311 // size for the current document size. Returns true when an update 4312 // is needed. 4313 function maybeUpdateLineNumberWidth(cm) { 4314 if (!cm.options.lineNumbers) { return false } 4315 var doc = cm.doc, last = lineNumberFor(cm.options, doc.first + doc.size - 1), display = cm.display; 4316 if (last.length != display.lineNumChars) { 4317 var test = display.measure.appendChild(elt("div", [elt("div", last)], 4318 "CodeMirror-linenumber CodeMirror-gutter-elt")); 4319 var innerW = test.firstChild.offsetWidth, padding = test.offsetWidth - innerW; 4320 display.lineGutter.style.width = ""; 4321 display.lineNumInnerWidth = Math.max(innerW, display.lineGutter.offsetWidth - padding) + 1; 4322 display.lineNumWidth = display.lineNumInnerWidth + padding; 4323 display.lineNumChars = display.lineNumInnerWidth ? last.length : -1; 4324 display.lineGutter.style.width = display.lineNumWidth + "px"; 4325 updateGutterSpace(cm.display); 4326 return true 4327 } 4328 return false 4329 } 4330 4331 function getGutters(gutters, lineNumbers) { 4332 var result = [], sawLineNumbers = false; 4333 for (var i = 0; i < gutters.length; i++) { 4334 var name = gutters[i], style = null; 4335 if (typeof name != "string") { style = name.style; name = name.className; } 4336 if (name == "CodeMirror-linenumbers") { 4337 if (!lineNumbers) { continue } 4338 else { sawLineNumbers = true; } 4339 } 4340 result.push({className: name, style: style}); 4341 } 4342 if (lineNumbers && !sawLineNumbers) { result.push({className: "CodeMirror-linenumbers", style: null}); } 4343 return result 4344 } 4345 4346 // Rebuild the gutter elements, ensure the margin to the left of the 4347 // code matches their width. 4348 function renderGutters(display) { 4349 var gutters = display.gutters, specs = display.gutterSpecs; 4350 removeChildren(gutters); 4351 display.lineGutter = null; 4352 for (var i = 0; i < specs.length; ++i) { 4353 var ref = specs[i]; 4354 var className = ref.className; 4355 var style = ref.style; 4356 var gElt = gutters.appendChild(elt("div", null, "CodeMirror-gutter " + className)); 4357 if (style) { gElt.style.cssText = style; } 4358 if (className == "CodeMirror-linenumbers") { 4359 display.lineGutter = gElt; 4360 gElt.style.width = (display.lineNumWidth || 1) + "px"; 4361 } 4362 } 4363 gutters.style.display = specs.length ? "" : "none"; 4364 updateGutterSpace(display); 4365 } 4366 4367 function updateGutters(cm) { 4368 renderGutters(cm.display); 4369 regChange(cm); 4370 alignHorizontally(cm); 4371 } 4372 4373 // The display handles the DOM integration, both for input reading 4374 // and content drawing. It holds references to DOM nodes and 4375 // display-related state. 4376 4377 function Display(place, doc, input, options) { 4378 var d = this; 4379 this.input = input; 4380 4381 // Covers bottom-right square when both scrollbars are present. 4382 d.scrollbarFiller = elt("div", null, "CodeMirror-scrollbar-filler"); 4383 d.scrollbarFiller.setAttribute("cm-not-content", "true"); 4384 // Covers bottom of gutter when coverGutterNextToScrollbar is on 4385 // and h scrollbar is present. 4386 d.gutterFiller = elt("div", null, "CodeMirror-gutter-filler"); 4387 d.gutterFiller.setAttribute("cm-not-content", "true"); 4388 // Will contain the actual code, positioned to cover the viewport. 4389 d.lineDiv = eltP("div", null, "CodeMirror-code"); 4390 // Elements are added to these to represent selection and cursors. 4391 d.selectionDiv = elt("div", null, null, "position: relative; z-index: 1"); 4392 d.cursorDiv = elt("div", null, "CodeMirror-cursors"); 4393 // A visibility: hidden element used to find the size of things. 4394 d.measure = elt("div", null, "CodeMirror-measure"); 4395 // When lines outside of the viewport are measured, they are drawn in this. 4396 d.lineMeasure = elt("div", null, "CodeMirror-measure"); 4397 // Wraps everything that needs to exist inside the vertically-padded coordinate system 4398 d.lineSpace = eltP("div", [d.measure, d.lineMeasure, d.selectionDiv, d.cursorDiv, d.lineDiv], 4399 null, "position: relative; outline: none"); 4400 var lines = eltP("div", [d.lineSpace], "CodeMirror-lines"); 4401 // Moved around its parent to cover visible view. 4402 d.mover = elt("div", [lines], null, "position: relative"); 4403 // Set to the height of the document, allowing scrolling. 4404 d.sizer = elt("div", [d.mover], "CodeMirror-sizer"); 4405 d.sizerWidth = null; 4406 // Behavior of elts with overflow: auto and padding is 4407 // inconsistent across browsers. This is used to ensure the 4408 // scrollable area is big enough. 4409 d.heightForcer = elt("div", null, null, "position: absolute; height: " + scrollerGap + "px; width: 1px;"); 4410 // Will contain the gutters, if any. 4411 d.gutters = elt("div", null, "CodeMirror-gutters"); 4412 d.lineGutter = null; 4413 // Actual scrollable element. 4414 d.scroller = elt("div", [d.sizer, d.heightForcer, d.gutters], "CodeMirror-scroll"); 4415 d.scroller.setAttribute("tabIndex", "-1"); 4416 // The element in which the editor lives. 4417 d.wrapper = elt("div", [d.scrollbarFiller, d.gutterFiller, d.scroller], "CodeMirror");
vendor: 7,158 bytes, lines 4418-4591
4418 // See #6982. FIXME remove when this has been fixed for a while in Chrome 4419 if (chrome && chrome_version >= 105) { d.wrapper.style.clipPath = "inset(0px)"; } 4420 4421 // This attribute is respected by automatic translation systems such as Google Translate, 4422 // and may also be respected by tools used by human translators. 4423 d.wrapper.setAttribute('translate', 'no'); 4424 4425 // Work around IE7 z-index bug (not perfect, hence IE7 not really being supported) 4426 if (ie && ie_version < 8) { d.gutters.style.zIndex = -1; d.scroller.style.paddingRight = 0; } 4427 if (!webkit && !(gecko && mobile)) { d.scroller.draggable = true; } 4428 4429 if (place) { 4430 if (place.appendChild) { place.appendChild(d.wrapper); } 4431 else { place(d.wrapper); } 4432 } 4433 4434 // Current rendered range (may be bigger than the view window). 4435 d.viewFrom = d.viewTo = doc.first; 4436 d.reportedViewFrom = d.reportedViewTo = doc.first; 4437 // Information about the rendered lines. 4438 d.view = []; 4439 d.renderedView = null; 4440 // Holds info about a single rendered line when it was rendered 4441 // for measurement, while not in view. 4442 d.externalMeasured = null; 4443 // Empty space (in pixels) above the view 4444 d.viewOffset = 0; 4445 d.lastWrapHeight = d.lastWrapWidth = 0; 4446 d.updateLineNumbers = null; 4447 4448 d.nativeBarWidth = d.barHeight = d.barWidth = 0; 4449 d.scrollbarsClipped = false; 4450 4451 // Used to only resize the line number gutter when necessary (when 4452 // the amount of lines crosses a boundary that makes its width change) 4453 d.lineNumWidth = d.lineNumInnerWidth = d.lineNumChars = null; 4454 // Set to true when a non-horizontal-scrolling line widget is 4455 // added. As an optimization, line widget aligning is skipped when 4456 // this is false. 4457 d.alignWidgets = false; 4458 4459 d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null; 4460 4461 // Tracks the maximum line length so that the horizontal scrollbar 4462 // can be kept static when scrolling. 4463 d.maxLine = null; 4464 d.maxLineLength = 0; 4465 d.maxLineChanged = false; 4466 4467 // Used for measuring wheel scrolling granularity 4468 d.wheelDX = d.wheelDY = d.wheelStartX = d.wheelStartY = null; 4469 4470 // True when shift is held down. 4471 d.shift = false; 4472 4473 // Used to track whether anything happened since the context menu 4474 // was opened. 4475 d.selForContextMenu = null; 4476 4477 d.activeTouch = null; 4478 4479 d.gutterSpecs = getGutters(options.gutters, options.lineNumbers); 4480 renderGutters(d); 4481 4482 input.init(d); 4483 } 4484 4485 // Since the delta values reported on mouse wheel events are 4486 // unstandardized between browsers and even browser versions, and 4487 // generally horribly unpredictable, this code starts by measuring 4488 // the scroll effect that the first few mouse wheel events have, 4489 // and, from that, detects the way it can convert deltas to pixel 4490 // offsets afterwards. 4491 // 4492 // The reason we want to know the amount a wheel event will scroll 4493 // is that it gives us a chance to update the display before the 4494 // actual scrolling happens, reducing flickering. 4495 4496 var wheelSamples = 0, wheelPixelsPerUnit = null; 4497 // Fill in a browser-detected starting value on browsers where we 4498 // know one. These don't have to be accurate -- the result of them 4499 // being wrong would just be a slight flicker on the first wheel 4500 // scroll (if it is large enough). 4501 if (ie) { wheelPixelsPerUnit = -.53; } 4502 else if (gecko) { wheelPixelsPerUnit = 15; } 4503 else if (chrome) { wheelPixelsPerUnit = -.7; } 4504 else if (safari) { wheelPixelsPerUnit = -1/3; } 4505 4506 function wheelEventDelta(e) { 4507 var dx = e.wheelDeltaX, dy = e.wheelDeltaY; 4508 if (dx == null && e.detail && e.axis == e.HORIZONTAL_AXIS) { dx = e.detail; } 4509 if (dy == null && e.detail && e.axis == e.VERTICAL_AXIS) { dy = e.detail; } 4510 else if (dy == null) { dy = e.wheelDelta; } 4511 return {x: dx, y: dy} 4512 } 4513 function wheelEventPixels(e) { 4514 var delta = wheelEventDelta(e); 4515 delta.x *= wheelPixelsPerUnit; 4516 delta.y *= wheelPixelsPerUnit; 4517 return delta 4518 } 4519 4520 function onScrollWheel(cm, e) { 4521 // On Chrome 102, viewport updates somehow stop wheel-based 4522 // scrolling. Turning off pointer events during the scroll seems 4523 // to avoid the issue. 4524 if (chrome && chrome_version == 102) { 4525 if (cm.display.chromeScrollHack == null) { cm.display.sizer.style.pointerEvents = "none"; } 4526 else { clearTimeout(cm.display.chromeScrollHack); } 4527 cm.display.chromeScrollHack = setTimeout(function () { 4528 cm.display.chromeScrollHack = null; 4529 cm.display.sizer.style.pointerEvents = ""; 4530 }, 100); 4531 } 4532 var delta = wheelEventDelta(e), dx = delta.x, dy = delta.y; 4533 var pixelsPerUnit = wheelPixelsPerUnit; 4534 if (e.deltaMode === 0) { 4535 dx = e.deltaX; 4536 dy = e.deltaY; 4537 pixelsPerUnit = 1; 4538 } 4539 4540 var display = cm.display, scroll = display.scroller; 4541 // Quit if there's nothing to scroll here 4542 var canScrollX = scroll.scrollWidth > scroll.clientWidth; 4543 var canScrollY = scroll.scrollHeight > scroll.clientHeight; 4544 if (!(dx && canScrollX || dy && canScrollY)) { return } 4545 4546 // Webkit browsers on OS X abort momentum scrolls when the target 4547 // of the scroll event is removed from the scrollable element. 4548 // This hack (see related code in patchDisplay) makes sure the 4549 // element is kept around. 4550 if (dy && mac && webkit) { 4551 outer: for (var cur = e.target, view = display.view; cur != scroll; cur = cur.parentNode) { 4552 for (var i = 0; i < view.length; i++) { 4553 if (view[i].node == cur) { 4554 cm.display.currentWheelTarget = cur; 4555 break outer 4556 } 4557 } 4558 } 4559 } 4560 4561 // On some browsers, horizontal scrolling will cause redraws to 4562 // happen before the gutter has been realigned, causing it to 4563 // wriggle around in a most unseemly way. When we have an 4564 // estimated pixels/delta value, we just handle horizontal 4565 // scrolling entirely here. It'll be slightly off from native, but 4566 // better than glitching out. 4567 if (dx && !gecko && !presto && pixelsPerUnit != null) { 4568 if (dy && canScrollY) 4569 { updateScrollTop(cm, Math.max(0, scroll.scrollTop + dy * pixelsPerUnit)); } 4570 setScrollLeft(cm, Math.max(0, scroll.scrollLeft + dx * pixelsPerUnit)); 4571 // Only prevent default scrolling if vertical scrolling is 4572 // actually possible. Otherwise, it causes vertical scroll 4573 // jitter on OSX trackpads when deltaX is small and deltaY 4574 // is large (issue #3579) 4575 if (!dy || (dy && canScrollY)) 4576 { e_preventDefault(e); } 4577 display.wheelStartX = null; // Abort measurement, if in progress 4578 return 4579 } 4580 4581 // 'Project' the visible viewport to cover the area that is being 4582 // scrolled into view (if we know enough to estimate it). 4583 if (dy && pixelsPerUnit != null) { 4584 var pixels = dy * pixelsPerUnit; 4585 var top = cm.doc.scrollTop, bot = top + display.wrapper.clientHeight; 4586 if (pixels < 0) { top = Math.max(0, top + pixels - 50); } 4587 else { bot = Math.min(cm.doc.height, bot + pixels + 50); } 4588 updateDisplaySimple(cm, {top: top, bottom: bot}); 4589 } 4590 4591 if (wheelSamples < 20 && e.deltaMode !==
vendor: 24,005 bytes, lines 4591-5215
45910) { 4592 if (display.wheelStartX == null) { 4593 display.wheelStartX = scroll.scrollLeft; display.wheelStartY = scroll.scrollTop; 4594 display.wheelDX = dx; display.wheelDY = dy; 4595 setTimeout(function () { 4596 if (display.wheelStartX == null) { return } 4597 var movedX = scroll.scrollLeft - display.wheelStartX; 4598 var movedY = scroll.scrollTop - display.wheelStartY; 4599 var sample = (movedY && display.wheelDY && movedY / display.wheelDY) || 4600 (movedX && display.wheelDX && movedX / display.wheelDX); 4601 display.wheelStartX = display.wheelStartY = null; 4602 if (!sample) { return } 4603 wheelPixelsPerUnit = (wheelPixelsPerUnit * wheelSamples + sample) / (wheelSamples + 1); 4604 ++wheelSamples; 4605 }, 200); 4606 } else { 4607 display.wheelDX += dx; display.wheelDY += dy; 4608 } 4609 } 4610 } 4611 4612 // Selection objects are immutable. A new one is created every time 4613 // the selection changes. A selection is one or more non-overlapping 4614 // (and non-touching) ranges, sorted, and an integer that indicates 4615 // which one is the primary selection (the one that's scrolled into 4616 // view, that getCursor returns, etc). 4617 var Selection = function(ranges, primIndex) { 4618 this.ranges = ranges; 4619 this.primIndex = primIndex; 4620 }; 4621 4622 Selection.prototype.primary = function () { return this.ranges[this.primIndex] }; 4623 4624 Selection.prototype.equals = function (other) { 4625 if (other == this) { return true } 4626 if (other.primIndex != this.primIndex || other.ranges.length != this.ranges.length) { return false } 4627 for (var i = 0; i < this.ranges.length; i++) { 4628 var here = this.ranges[i], there = other.ranges[i]; 4629 if (!equalCursorPos(here.anchor, there.anchor) || !equalCursorPos(here.head, there.head)) { return false } 4630 } 4631 return true 4632 }; 4633 4634 Selection.prototype.deepCopy = function () { 4635 var out = []; 4636 for (var i = 0; i < this.ranges.length; i++) 4637 { out[i] = new Range(copyPos(this.ranges[i].anchor), copyPos(this.ranges[i].head)); } 4638 return new Selection(out, this.primIndex) 4639 }; 4640 4641 Selection.prototype.somethingSelected = function () { 4642 for (var i = 0; i < this.ranges.length; i++) 4643 { if (!this.ranges[i].empty()) { return true } } 4644 return false 4645 }; 4646 4647 Selection.prototype.contains = function (pos, end) { 4648 if (!end) { end = pos; } 4649 for (var i = 0; i < this.ranges.length; i++) { 4650 var range = this.ranges[i]; 4651 if (cmp(end, range.from()) >= 0 && cmp(pos, range.to()) <= 0) 4652 { return i } 4653 } 4654 return -1 4655 }; 4656 4657 var Range = function(anchor, head) { 4658 this.anchor = anchor; this.head = head; 4659 }; 4660 4661 Range.prototype.from = function () { return minPos(this.anchor, this.head) }; 4662 Range.prototype.to = function () { return maxPos(this.anchor, this.head) }; 4663 Range.prototype.empty = function () { return this.head.line == this.anchor.line && this.head.ch == this.anchor.ch }; 4664 4665 // Take an unsorted, potentially overlapping set of ranges, and 4666 // build a selection out of it. 'Consumes' ranges array (modifying 4667 // it). 4668 function normalizeSelection(cm, ranges, primIndex) { 4669 var mayTouch = cm && cm.options.selectionsMayTouch; 4670 var prim = ranges[primIndex]; 4671 ranges.sort(function (a, b) { return cmp(a.from(), b.from()); }); 4672 primIndex = indexOf(ranges, prim); 4673 for (var i = 1; i < ranges.length; i++) { 4674 var cur = ranges[i], prev = ranges[i - 1]; 4675 var diff = cmp(prev.to(), cur.from()); 4676 if (mayTouch && !cur.empty() ? diff > 0 : diff >= 0) { 4677 var from = minPos(prev.from(), cur.from()), to = maxPos(prev.to(), cur.to()); 4678 var inv = prev.empty() ? cur.from() == cur.head : prev.from() == prev.head; 4679 if (i <= primIndex) { --primIndex; } 4680 ranges.splice(--i, 2, new Range(inv ? to : from, inv ? from : to)); 4681 } 4682 } 4683 return new Selection(ranges, primIndex) 4684 } 4685 4686 function simpleSelection(anchor, head) { 4687 return new Selection([new Range(anchor, head || anchor)], 0) 4688 } 4689 4690 // Compute the position of the end of a change (its 'to' property 4691 // refers to the pre-change end). 4692 function changeEnd(change) { 4693 if (!change.text) { return change.to } 4694 return Pos(change.from.line + change.text.length - 1, 4695 lst(change.text).length + (change.text.length == 1 ? change.from.ch : 0)) 4696 } 4697 4698 // Adjust a position to refer to the post-change position of the 4699 // same text, or the end of the change if the change covers it. 4700 function adjustForChange(pos, change) { 4701 if (cmp(pos, change.from) < 0) { return pos } 4702 if (cmp(pos, change.to) <= 0) { return changeEnd(change) } 4703 4704 var line = pos.line + change.text.length - (change.to.line - change.from.line) - 1, ch = pos.ch; 4705 if (pos.line == change.to.line) { ch += changeEnd(change).ch - change.to.ch; } 4706 return Pos(line, ch) 4707 } 4708 4709 function computeSelAfterChange(doc, change) { 4710 var out = []; 4711 for (var i = 0; i < doc.sel.ranges.length; i++) { 4712 var range = doc.sel.ranges[i]; 4713 out.push(new Range(adjustForChange(range.anchor, change), 4714 adjustForChange(range.head, change))); 4715 } 4716 return normalizeSelection(doc.cm, out, doc.sel.primIndex) 4717 } 4718 4719 function offsetPos(pos, old, nw) { 4720 if (pos.line == old.line) 4721 { return Pos(nw.line, pos.ch - old.ch + nw.ch) } 4722 else 4723 { return Pos(nw.line + (pos.line - old.line), pos.ch) } 4724 } 4725 4726 // Used by replaceSelections to allow moving the selection to the 4727 // start or around the replaced test. Hint may be "start" or "around". 4728 function computeReplacedSel(doc, changes, hint) { 4729 var out = []; 4730 var oldPrev = Pos(doc.first, 0), newPrev = oldPrev; 4731 for (var i = 0; i < changes.length; i++) { 4732 var change = changes[i]; 4733 var from = offsetPos(change.from, oldPrev, newPrev); 4734 var to = offsetPos(changeEnd(change), oldPrev, newPrev); 4735 oldPrev = change.to; 4736 newPrev = to; 4737 if (hint == "around") { 4738 var range = doc.sel.ranges[i], inv = cmp(range.head, range.anchor) < 0; 4739 out[i] = new Range(inv ? to : from, inv ? from : to); 4740 } else { 4741 out[i] = new Range(from, from); 4742 } 4743 } 4744 return new Selection(out, doc.sel.primIndex) 4745 } 4746 4747 // Used to get the editor into a consistent state again when options change. 4748 4749 function loadMode(cm) { 4750 cm.doc.mode = getMode(cm.options, cm.doc.modeOption); 4751 resetModeState(cm); 4752 } 4753 4754 function resetModeState(cm) { 4755 cm.doc.iter(function (line) { 4756 if (line.stateAfter) { line.stateAfter = null; } 4757 if (line.styles) { line.styles = null; } 4758 }); 4759 cm.doc.modeFrontier = cm.doc.highlightFrontier = cm.doc.first; 4760 startWorker(cm, 100); 4761 cm.state.modeGen++; 4762 if (cm.curOp) { regChange(cm); } 4763 } 4764 4765 // DOCUMENT DATA STRUCTURE 4766 4767 // By default, updates that start and end at the beginning of a line 4768 // are treated specially, in order to make the association of line 4769 // widgets and marker elements with the text behave more intuitive. 4770 function isWholeLineUpdate(doc, change) { 4771 return change.from.ch == 0 && change.to.ch == 0 && lst(change.text) == "" && 4772 (!doc.cm || doc.cm.options.wholeLineUpdateBefore) 4773 } 4774 4775 // Perform a change on the document data structure. 4776 function updateDoc(doc, change, markedSpans, estimateHeight) { 4777 function spansFor(n) {return markedSpans ? markedSpans[n] : null} 4778 function update(line, text, spans) { 4779 updateLine(line, text, spans, estimateHeight); 4780 signalLater(line, "change", line, change); 4781 } 4782 function linesFor(start, end) { 4783 var result = []; 4784 for (var i = start; i < end; ++i) 4785 { result.push(new Line(text[i], spansFor(i), estimateHeight)); } 4786 return result 4787 } 4788 4789 var from = change.from, to = change.to, text = change.text; 4790 var firstLine = getLine(doc, from.line), lastLine = getLine(doc, to.line); 4791 var lastText = lst(text), lastSpans = spansFor(text.length - 1), nlines = to.line - from.line; 4792 4793 // Adjust the line structure 4794 if (change.full) { 4795 doc.insert(0, linesFor(0, text.length)); 4796 doc.remove(text.length, doc.size - text.length); 4797 } else if (isWholeLineUpdate(doc, change)) { 4798 // This is a whole-line replace. Treated specially to make 4799 // sure line objects move the way they are supposed to. 4800 var added = linesFor(0, text.length - 1); 4801 update(lastLine, lastLine.text, lastSpans); 4802 if (nlines) { doc.remove(from.line, nlines); } 4803 if (added.length) { doc.insert(from.line, added); } 4804 } else if (firstLine == lastLine) { 4805 if (text.length == 1) { 4806 update(firstLine, firstLine.text.slice(0, from.ch) + lastText + firstLine.text.slice(to.ch), lastSpans); 4807 } else { 4808 var added$1 = linesFor(1, text.length - 1); 4809 added$1.push(new Line(lastText + firstLine.text.slice(to.ch), lastSpans, estimateHeight)); 4810 update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0)); 4811 doc.insert(from.line + 1, added$1); 4812 } 4813 } else if (text.length == 1) { 4814 update(firstLine, firstLine.text.slice(0, from.ch) + text[0] + lastLine.text.slice(to.ch), spansFor(0)); 4815 doc.remove(from.line + 1, nlines); 4816 } else { 4817 update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0)); 4818 update(lastLine, lastText + lastLine.text.slice(to.ch), lastSpans); 4819 var added$2 = linesFor(1, text.length - 1); 4820 if (nlines > 1) { doc.remove(from.line + 1, nlines - 1); } 4821 doc.insert(from.line + 1, added$2); 4822 } 4823 4824 signalLater(doc, "change", doc, change); 4825 } 4826 4827 // Call f for all linked documents. 4828 function linkedDocs(doc, f, sharedHistOnly) { 4829 function propagate(doc, skip, sharedHist) { 4830 if (doc.linked) { for (var i = 0; i < doc.linked.length; ++i) { 4831 var rel = doc.linked[i]; 4832 if (rel.doc == skip) { continue } 4833 var shared = sharedHist && rel.sharedHist; 4834 if (sharedHistOnly && !shared) { continue } 4835 f(rel.doc, shared); 4836 propagate(rel.doc, doc, shared); 4837 } } 4838 } 4839 propagate(doc, null, true); 4840 } 4841 4842 // Attach a document to an editor. 4843 function attachDoc(cm, doc) { 4844 if (doc.cm) { throw new Error("This document is already in use.") } 4845 cm.doc = doc; 4846 doc.cm = cm; 4847 estimateLineHeights(cm); 4848 loadMode(cm); 4849 setDirectionClass(cm); 4850 cm.options.direction = doc.direction; 4851 if (!cm.options.lineWrapping) { findMaxLine(cm); } 4852 cm.options.mode = doc.modeOption; 4853 regChange(cm); 4854 } 4855 4856 function setDirectionClass(cm) { 4857 (cm.doc.direction == "rtl" ? addClass : rmClass)(cm.display.lineDiv, "CodeMirror-rtl"); 4858 } 4859 4860 function directionChanged(cm) { 4861 runInOp(cm, function () { 4862 setDirectionClass(cm); 4863 regChange(cm); 4864 }); 4865 } 4866 4867 function History(prev) { 4868 // Arrays of change events and selections. Doing something adds an 4869 // event to done and clears undo. Undoing moves events from done 4870 // to undone, redoing moves them in the other direction. 4871 this.done = []; this.undone = []; 4872 this.undoDepth = prev ? prev.undoDepth : Infinity; 4873 // Used to track when changes can be merged into a single undo 4874 // event 4875 this.lastModTime = this.lastSelTime = 0; 4876 this.lastOp = this.lastSelOp = null; 4877 this.lastOrigin = this.lastSelOrigin = null; 4878 // Used by the isClean() method 4879 this.generation = this.maxGeneration = prev ? prev.maxGeneration : 1; 4880 } 4881 4882 // Create a history change event from an updateDoc-style change 4883 // object. 4884 function historyChangeFromChange(doc, change) { 4885 var histChange = {from: copyPos(change.from), to: changeEnd(change), text: getBetween(doc, change.from, change.to)}; 4886 attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1); 4887 linkedDocs(doc, function (doc) { return attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1); }, true); 4888 return histChange 4889 } 4890 4891 // Pop all selection events off the end of a history array. Stop at 4892 // a change event. 4893 function clearSelectionEvents(array) { 4894 while (array.length) { 4895 var last = lst(array); 4896 if (last.ranges) { array.pop(); } 4897 else { break } 4898 } 4899 } 4900 4901 // Find the top change event in the history. Pop off selection 4902 // events that are in the way. 4903 function lastChangeEvent(hist, force) { 4904 if (force) { 4905 clearSelectionEvents(hist.done); 4906 return lst(hist.done) 4907 } else if (hist.done.length && !lst(hist.done).ranges) { 4908 return lst(hist.done) 4909 } else if (hist.done.length > 1 && !hist.done[hist.done.length - 2].ranges) { 4910 hist.done.pop(); 4911 return lst(hist.done) 4912 } 4913 } 4914 4915 // Register a change in the history. Merges changes that are within 4916 // a single operation, or are close together with an origin that 4917 // allows merging (starting with "+") into a single event. 4918 function addChangeToHistory(doc, change, selAfter, opId) { 4919 var hist = doc.history; 4920 hist.undone.length = 0; 4921 var time = +new Date, cur; 4922 var last; 4923 4924 if ((hist.lastOp == opId || 4925 hist.lastOrigin == change.origin && change.origin && 4926 ((change.origin.charAt(0) == "+" && hist.lastModTime > time - (doc.cm ? doc.cm.options.historyEventDelay : 500)) || 4927 change.origin.charAt(0) == "*")) && 4928 (cur = lastChangeEvent(hist, hist.lastOp == opId))) { 4929 // Merge this change into the last event 4930 last = lst(cur.changes); 4931 if (cmp(change.from, change.to) == 0 && cmp(change.from, last.to) == 0) { 4932 // Optimized case for simple insertion -- don't want to add 4933 // new changesets for every character typed 4934 last.to = changeEnd(change); 4935 } else { 4936 // Add new sub-event 4937 cur.changes.push(historyChangeFromChange(doc, change)); 4938 } 4939 } else { 4940 // Can not be merged, start a new event. 4941 var before = lst(hist.done); 4942 if (!before || !before.ranges) 4943 { pushSelectionToHistory(doc.sel, hist.done); } 4944 cur = {changes: [historyChangeFromChange(doc, change)], 4945 generation: hist.generation}; 4946 hist.done.push(cur); 4947 while (hist.done.length > hist.undoDepth) { 4948 hist.done.shift(); 4949 if (!hist.done[0].ranges) { hist.done.shift(); } 4950 } 4951 } 4952 hist.done.push(selAfter); 4953 hist.generation = ++hist.maxGeneration; 4954 hist.lastModTime = hist.lastSelTime = time; 4955 hist.lastOp = hist.lastSelOp = opId; 4956 hist.lastOrigin = hist.lastSelOrigin = change.origin; 4957 4958 if (!last) { signal(doc, "historyAdded"); } 4959 } 4960 4961 function selectionEventCanBeMerged(doc, origin, prev, sel) { 4962 var ch = origin.charAt(0); 4963 return ch == "*" || 4964 ch == "+" && 4965 prev.ranges.length == sel.ranges.length && 4966 prev.somethingSelected() == sel.somethingSelected() && 4967 new Date - doc.history.lastSelTime <= (doc.cm ? doc.cm.options.historyEventDelay : 500) 4968 } 4969 4970 // Called whenever the selection changes, sets the new selection as 4971 // the pending selection in the history, and pushes the old pending 4972 // selection into the 'done' array when it was significantly 4973 // different (in number of selected ranges, emptiness, or time). 4974 function addSelectionToHistory(doc, sel, opId, options) { 4975 var hist = doc.history, origin = options && options.origin; 4976 4977 // A new event is started when the previous origin does not match 4978 // the current, or the origins don't allow matching. Origins 4979 // starting with * are always merged, those starting with + are 4980 // merged when similar and close together in time. 4981 if (opId == hist.lastSelOp || 4982 (origin && hist.lastSelOrigin == origin && 4983 (hist.lastModTime == hist.lastSelTime && hist.lastOrigin == origin || 4984 selectionEventCanBeMerged(doc, origin, lst(hist.done), sel)))) 4985 { hist.done[hist.done.length - 1] = sel; } 4986 else 4987 { pushSelectionToHistory(sel, hist.done); } 4988 4989 hist.lastSelTime = +new Date; 4990 hist.lastSelOrigin = origin; 4991 hist.lastSelOp = opId; 4992 if (options && options.clearRedo !== false) 4993 { clearSelectionEvents(hist.undone); } 4994 } 4995 4996 function pushSelectionToHistory(sel, dest) { 4997 var top = lst(dest); 4998 if (!(top && top.ranges && top.equals(sel))) 4999 { dest.push(sel); } 5000 } 5001 5002 // Used to store marked span information in the history. 5003 function attachLocalSpans(doc, change, from, to) { 5004 var existing = change["spans_" + doc.id], n = 0; 5005 doc.iter(Math.max(doc.first, from), Math.min(doc.first + doc.size, to), function (line) { 5006 if (line.markedSpans) 5007 { (existing || (existing = change["spans_" + doc.id] = {}))[n] = line.markedSpans; } 5008 ++n; 5009 }); 5010 } 5011 5012 // When un/re-doing restores text containing marked spans, those 5013 // that have been explicitly cleared should not be restored. 5014 function removeClearedSpans(spans) { 5015 if (!spans) { return null } 5016 var out; 5017 for (var i = 0; i < spans.length; ++i) { 5018 if (spans[i].marker.explicitlyCleared) { if (!out) { out = spans.slice(0, i); } } 5019 else if (out) { out.push(spans[i]); } 5020 } 5021 return !out ? spans : out.length ? out : null 5022 } 5023 5024 // Retrieve and filter the old marked spans stored in a change event. 5025 function getOldSpans(doc, change) { 5026 var found = change["spans_" + doc.id]; 5027 if (!found) { return null } 5028 var nw = []; 5029 for (var i = 0; i < change.text.length; ++i) 5030 { nw.push(removeClearedSpans(found[i])); } 5031 return nw 5032 } 5033 5034 // Used for un/re-doing changes from the history. Combines the 5035 // result of computing the existing spans with the set of spans that 5036 // existed in the history (so that deleting around a span and then 5037 // undoing brings back the span). 5038 function mergeOldSpans(doc, change) { 5039 var old = getOldSpans(doc, change); 5040 var stretched = stretchSpansOverChange(doc, change); 5041 if (!old) { return stretched } 5042 if (!stretched) { return old } 5043 5044 for (var i = 0; i < old.length; ++i) { 5045 var oldCur = old[i], stretchCur = stretched[i]; 5046 if (oldCur && stretchCur) { 5047 spans: for (var j = 0; j < stretchCur.length; ++j) { 5048 var span = stretchCur[j]; 5049 for (var k = 0; k < oldCur.length; ++k) 5050 { if (oldCur[k].marker == span.marker) { continue spans } } 5051 oldCur.push(span); 5052 } 5053 } else if (stretchCur) { 5054 old[i] = stretchCur; 5055 } 5056 } 5057 return old 5058 } 5059 5060 // Used both to provide a JSON-safe object in .getHistory, and, when 5061 // detaching a document, to split the history in two 5062 function copyHistoryArray(events, newGroup, instantiateSel) { 5063 var copy = []; 5064 for (var i = 0; i < events.length; ++i) { 5065 var event = events[i]; 5066 if (event.ranges) { 5067 copy.push(instantiateSel ? Selection.prototype.deepCopy.call(event) : event); 5068 continue 5069 } 5070 var changes = event.changes, newChanges = []; 5071 copy.push({changes: newChanges}); 5072 for (var j = 0; j < changes.length; ++j) { 5073 var change = changes[j], m = (void 0); 5074 newChanges.push({from: change.from, to: change.to, text: change.text}); 5075 if (newGroup) { for (var prop in change) { if (m = prop.match(/^spans_(\d+)$/)) { 5076 if (indexOf(newGroup, Number(m[1])) > -1) { 5077 lst(newChanges)[prop] = change[prop]; 5078 delete change[prop]; 5079 } 5080 } } } 5081 } 5082 } 5083 return copy 5084 } 5085 5086 // The 'scroll' parameter given to many of these indicated whether 5087 // the new cursor position should be scrolled into view after 5088 // modifying the selection. 5089 5090 // If shift is held or the extend flag is set, extends a range to 5091 // include a given position (and optionally a second position). 5092 // Otherwise, simply returns the range between the given positions. 5093 // Used for cursor motion and such. 5094 function extendRange(range, head, other, extend) { 5095 if (extend) { 5096 var anchor = range.anchor; 5097 if (other) { 5098 var posBefore = cmp(head, anchor) < 0; 5099 if (posBefore != (cmp(other, anchor) < 0)) { 5100 anchor = head; 5101 head = other; 5102 } else if (posBefore != (cmp(head, other) < 0)) { 5103 head = other; 5104 } 5105 } 5106 return new Range(anchor, head) 5107 } else { 5108 return new Range(other || head, head) 5109 } 5110 } 5111 5112 // Extend the primary selection range, discard the rest. 5113 function extendSelection(doc, head, other, options, extend) { 5114 if (extend == null) { extend = doc.cm && (doc.cm.display.shift || doc.extend); } 5115 setSelection(doc, new Selection([extendRange(doc.sel.primary(), head, other, extend)], 0), options); 5116 } 5117 5118 // Extend all selections (pos is an array of selections with length 5119 // equal the number of selections) 5120 function extendSelections(doc, heads, options) { 5121 var out = []; 5122 var extend = doc.cm && (doc.cm.display.shift || doc.extend); 5123 for (var i = 0; i < doc.sel.ranges.length; i++) 5124 { out[i] = extendRange(doc.sel.ranges[i], heads[i], null, extend); } 5125 var newSel = normalizeSelection(doc.cm, out, doc.sel.primIndex); 5126 setSelection(doc, newSel, options); 5127 } 5128 5129 // Updates a single range in the selection. 5130 function replaceOneSelection(doc, i, range, options) { 5131 var ranges = doc.sel.ranges.slice(0); 5132 ranges[i] = range; 5133 setSelection(doc, normalizeSelection(doc.cm, ranges, doc.sel.primIndex), options); 5134 } 5135 5136 // Reset the selection to a single range. 5137 function setSimpleSelection(doc, anchor, head, options) { 5138 setSelection(doc, simpleSelection(anchor, head), options); 5139 } 5140 5141 // Give beforeSelectionChange handlers a change to influence a 5142 // selection update. 5143 function filterSelectionChange(doc, sel, options) { 5144 var obj = { 5145 ranges: sel.ranges, 5146 update: function(ranges) { 5147 this.ranges = []; 5148 for (var i = 0; i < ranges.length; i++) 5149 { this.ranges[i] = new Range(clipPos(doc, ranges[i].anchor), 5150 clipPos(doc, ranges[i].head)); } 5151 }, 5152 origin: options && options.origin 5153 }; 5154 signal(doc, "beforeSelectionChange", doc, obj); 5155 if (doc.cm) { signal(doc.cm, "beforeSelectionChange", doc.cm, obj); } 5156 if (obj.ranges != sel.ranges) { return normalizeSelection(doc.cm, obj.ranges, obj.ranges.length - 1) } 5157 else { return sel } 5158 } 5159 5160 function setSelectionReplaceHistory(doc, sel, options) { 5161 var done = doc.history.done, last = lst(done); 5162 if (last && last.ranges) { 5163 done[done.length - 1] = sel; 5164 setSelectionNoUndo(doc, sel, options); 5165 } else { 5166 setSelection(doc, sel, options); 5167 } 5168 } 5169 5170 // Set a new selection. 5171 function setSelection(doc, sel, options) { 5172 setSelectionNoUndo(doc, sel, options); 5173 addSelectionToHistory(doc, doc.sel, doc.cm ? doc.cm.curOp.id : NaN, options); 5174 } 5175 5176 function setSelectionNoUndo(doc, sel, options) { 5177 if (hasHandler(doc, "beforeSelectionChange") || doc.cm && hasHandler(doc.cm, "beforeSelectionChange")) 5178 { sel = filterSelectionChange(doc, sel, options); } 5179 5180 var bias = options && options.bias || 5181 (cmp(sel.primary().head, doc.sel.primary().head) < 0 ? -1 : 1); 5182 setSelectionInner(doc, skipAtomicInSelection(doc, sel, bias, true)); 5183 5184 if (!(options && options.scroll === false) && doc.cm && doc.cm.getOption("readOnly") != "nocursor") 5185 { ensureCursorVisible(doc.cm); } 5186 } 5187 5188 function setSelectionInner(doc, sel) { 5189 if (sel.equals(doc.sel)) { return } 5190 5191 doc.sel = sel; 5192 5193 if (doc.cm) { 5194 doc.cm.curOp.updateInput = 1; 5195 doc.cm.curOp.selectionChanged = true; 5196 signalCursorActivity(doc.cm); 5197 } 5198 signalLater(doc, "cursorActivity", doc); 5199 } 5200 5201 // Verify that the selection does not partially select any atomic 5202 // marked ranges. 5203 function reCheckSelection(doc) { 5204 setSelectionInner(doc, skipAtomicInSelection(doc, doc.sel, null, false)); 5205 } 5206 5207 // Return a selection that does not partially select any atomic 5208 // ranges. 5209 function skipAtomicInSelection(doc, sel, bias, mayClear) { 5210 var out; 5211 for (var i = 0; i < sel.ranges.length; i++) { 5212 var range = sel.ranges[i]; 5213 var old = sel.ranges.length == doc.sel.ranges.length && doc.sel.ranges[i]; 5214 var newAnchor = skipAtomic(doc, range.anchor, old && old.anchor, bias, mayClear); 5215 var newHead =
5215range.head == range.anchor ? newAnchor :
vendor: 83,725 bytes, lines 5215-7267
5215 skipAtomic(doc, range.head, old && old.head, bias, mayClear); 5216 if (out || newAnchor != range.anchor || newHead != range.head) { 5217 if (!out) { out = sel.ranges.slice(0, i); } 5218 out[i] = new Range(newAnchor, newHead); 5219 } 5220 } 5221 return out ? normalizeSelection(doc.cm, out, sel.primIndex) : sel 5222 } 5223 5224 function skipAtomicInner(doc, pos, oldPos, dir, mayClear) { 5225 var line = getLine(doc, pos.line); 5226 if (line.markedSpans) { for (var i = 0; i < line.markedSpans.length; ++i) { 5227 var sp = line.markedSpans[i], m = sp.marker; 5228 5229 // Determine if we should prevent the cursor being placed to the left/right of an atomic marker 5230 // Historically this was determined using the inclusiveLeft/Right option, but the new way to control it 5231 // is with selectLeft/Right 5232 var preventCursorLeft = ("selectLeft" in m) ? !m.selectLeft : m.inclusiveLeft; 5233 var preventCursorRight = ("selectRight" in m) ? !m.selectRight : m.inclusiveRight; 5234 5235 if ((sp.from == null || (preventCursorLeft ? sp.from <= pos.ch : sp.from < pos.ch)) && 5236 (sp.to == null || (preventCursorRight ? sp.to >= pos.ch : sp.to > pos.ch))) { 5237 if (mayClear) { 5238 signal(m, "beforeCursorEnter"); 5239 if (m.explicitlyCleared) { 5240 if (!line.markedSpans) { break } 5241 else {--i; continue} 5242 } 5243 } 5244 if (!m.atomic) { continue } 5245 5246 if (oldPos) { 5247 var near = m.find(dir < 0 ? 1 : -1), diff = (void 0); 5248 if (dir < 0 ? preventCursorRight : preventCursorLeft) 5249 { near = movePos(doc, near, -dir, near && near.line == pos.line ? line : null); } 5250 if (near && near.line == pos.line && (diff = cmp(near, oldPos)) && (dir < 0 ? diff < 0 : diff > 0)) 5251 { return skipAtomicInner(doc, near, pos, dir, mayClear) } 5252 } 5253 5254 var far = m.find(dir < 0 ? -1 : 1); 5255 if (dir < 0 ? preventCursorLeft : preventCursorRight) 5256 { far = movePos(doc, far, dir, far.line == pos.line ? line : null); } 5257 return far ? skipAtomicInner(doc, far, pos, dir, mayClear) : null 5258 } 5259 } } 5260 return pos 5261 } 5262 5263 // Ensure a given position is not inside an atomic range. 5264 function skipAtomic(doc, pos, oldPos, bias, mayClear) { 5265 var dir = bias || 1; 5266 var found = skipAtomicInner(doc, pos, oldPos, dir, mayClear) || 5267 (!mayClear && skipAtomicInner(doc, pos, oldPos, dir, true)) || 5268 skipAtomicInner(doc, pos, oldPos, -dir, mayClear) || 5269 (!mayClear && skipAtomicInner(doc, pos, oldPos, -dir, true)); 5270 if (!found) { 5271 doc.cantEdit = true; 5272 return Pos(doc.first, 0) 5273 } 5274 return found 5275 } 5276 5277 function movePos(doc, pos, dir, line) { 5278 if (dir < 0 && pos.ch == 0) { 5279 if (pos.line > doc.first) { return clipPos(doc, Pos(pos.line - 1)) } 5280 else { return null } 5281 } else if (dir > 0 && pos.ch == (line || getLine(doc, pos.line)).text.length) { 5282 if (pos.line < doc.first + doc.size - 1) { return Pos(pos.line + 1, 0) } 5283 else { return null } 5284 } else { 5285 return new Pos(pos.line, pos.ch + dir) 5286 } 5287 } 5288 5289 function selectAll(cm) { 5290 cm.setSelection(Pos(cm.firstLine(), 0), Pos(cm.lastLine()), sel_dontScroll); 5291 } 5292 5293 // UPDATING 5294 5295 // Allow "beforeChange" event handlers to influence a change 5296 function filterChange(doc, change, update) { 5297 var obj = { 5298 canceled: false, 5299 from: change.from, 5300 to: change.to, 5301 text: change.text, 5302 origin: change.origin, 5303 cancel: function () { return obj.canceled = true; } 5304 }; 5305 if (update) { obj.update = function (from, to, text, origin) { 5306 if (from) { obj.from = clipPos(doc, from); } 5307 if (to) { obj.to = clipPos(doc, to); } 5308 if (text) { obj.text = text; } 5309 if (origin !== undefined) { obj.origin = origin; } 5310 }; } 5311 signal(doc, "beforeChange", doc, obj); 5312 if (doc.cm) { signal(doc.cm, "beforeChange", doc.cm, obj); } 5313 5314 if (obj.canceled) { 5315 if (doc.cm) { doc.cm.curOp.updateInput = 2; } 5316 return null 5317 } 5318 return {from: obj.from, to: obj.to, text: obj.text, origin: obj.origin} 5319 } 5320 5321 // Apply a change to a document, and add it to the document's 5322 // history, and propagating it to all linked documents. 5323 function makeChange(doc, change, ignoreReadOnly) { 5324 if (doc.cm) { 5325 if (!doc.cm.curOp) { return operation(doc.cm, makeChange)(doc, change, ignoreReadOnly) } 5326 if (doc.cm.state.suppressEdits) { return } 5327 } 5328 5329 if (hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange")) { 5330 change = filterChange(doc, change, true); 5331 if (!change) { return } 5332 } 5333 5334 // Possibly split or suppress the update based on the presence 5335 // of read-only spans in its range. 5336 var split = sawReadOnlySpans && !ignoreReadOnly && removeReadOnlyRanges(doc, change.from, change.to); 5337 if (split) { 5338 for (var i = split.length - 1; i >= 0; --i) 5339 { makeChangeInner(doc, {from: split[i].from, to: split[i].to, text: i ? [""] : change.text, origin: change.origin}); } 5340 } else { 5341 makeChangeInner(doc, change); 5342 } 5343 } 5344 5345 function makeChangeInner(doc, change) { 5346 if (change.text.length == 1 && change.text[0] == "" && cmp(change.from, change.to) == 0) { return } 5347 var selAfter = computeSelAfterChange(doc, change); 5348 addChangeToHistory(doc, change, selAfter, doc.cm ? doc.cm.curOp.id : NaN); 5349 5350 makeChangeSingleDoc(doc, change, selAfter, stretchSpansOverChange(doc, change)); 5351 var rebased = []; 5352 5353 linkedDocs(doc, function (doc, sharedHist) { 5354 if (!sharedHist && indexOf(rebased, doc.history) == -1) { 5355 rebaseHist(doc.history, change); 5356 rebased.push(doc.history); 5357 } 5358 makeChangeSingleDoc(doc, change, null, stretchSpansOverChange(doc, change)); 5359 }); 5360 } 5361 5362 // Revert a change stored in a document's history. 5363 function makeChangeFromHistory(doc, type, allowSelectionOnly) { 5364 var suppress = doc.cm && doc.cm.state.suppressEdits; 5365 if (suppress && !allowSelectionOnly) { return } 5366 5367 var hist = doc.history, event, selAfter = doc.sel; 5368 var source = type == "undo" ? hist.done : hist.undone, dest = type == "undo" ? hist.undone : hist.done; 5369 5370 // Verify that there is a useable event (so that ctrl-z won't 5371 // needlessly clear selection events) 5372 var i = 0; 5373 for (; i < source.length; i++) { 5374 event = source[i]; 5375 if (allowSelectionOnly ? event.ranges && !event.equals(doc.sel) : !event.ranges) 5376 { break } 5377 } 5378 if (i == source.length) { return } 5379 hist.lastOrigin = hist.lastSelOrigin = null; 5380 5381 for (;;) { 5382 event = source.pop(); 5383 if (event.ranges) { 5384 pushSelectionToHistory(event, dest); 5385 if (allowSelectionOnly && !event.equals(doc.sel)) { 5386 setSelection(doc, event, {clearRedo: false}); 5387 return 5388 } 5389 selAfter = event; 5390 } else if (suppress) { 5391 source.push(event); 5392 return 5393 } else { break } 5394 } 5395 5396 // Build up a reverse change object to add to the opposite history 5397 // stack (redo when undoing, and vice versa). 5398 var antiChanges = []; 5399 pushSelectionToHistory(selAfter, dest); 5400 dest.push({changes: antiChanges, generation: hist.generation}); 5401 hist.generation = event.generation || ++hist.maxGeneration; 5402 5403 var filter = hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange"); 5404 5405 var loop = function ( i ) { 5406 var change = event.changes[i]; 5407 change.origin = type; 5408 if (filter && !filterChange(doc, change, false)) { 5409 source.length = 0; 5410 return {} 5411 } 5412 5413 antiChanges.push(historyChangeFromChange(doc, change)); 5414 5415 var after = i ? computeSelAfterChange(doc, change) : lst(source); 5416 makeChangeSingleDoc(doc, change, after, mergeOldSpans(doc, change)); 5417 if (!i && doc.cm) { doc.cm.scrollIntoView({from: change.from, to: changeEnd(change)}); } 5418 var rebased = []; 5419 5420 // Propagate to the linked documents 5421 linkedDocs(doc, function (doc, sharedHist) { 5422 if (!sharedHist && indexOf(rebased, doc.history) == -1) { 5423 rebaseHist(doc.history, change); 5424 rebased.push(doc.history); 5425 } 5426 makeChangeSingleDoc(doc, change, null, mergeOldSpans(doc, change)); 5427 }); 5428 }; 5429 5430 for (var i$1 = event.changes.length - 1; i$1 >= 0; --i$1) { 5431 var returned = loop( i$1 ); 5432 5433 if ( returned ) return returned.v; 5434 } 5435 } 5436 5437 // Sub-views need their line numbers shifted when text is added 5438 // above or below them in the parent document. 5439 function shiftDoc(doc, distance) { 5440 if (distance == 0) { return } 5441 doc.first += distance; 5442 doc.sel = new Selection(map(doc.sel.ranges, function (range) { return new Range( 5443 Pos(range.anchor.line + distance, range.anchor.ch), 5444 Pos(range.head.line + distance, range.head.ch) 5445 ); }), doc.sel.primIndex); 5446 if (doc.cm) { 5447 regChange(doc.cm, doc.first, doc.first - distance, distance); 5448 for (var d = doc.cm.display, l = d.viewFrom; l < d.viewTo; l++) 5449 { regLineChange(doc.cm, l, "gutter"); } 5450 } 5451 } 5452 5453 // More lower-level change function, handling only a single document 5454 // (not linked ones). 5455 function makeChangeSingleDoc(doc, change, selAfter, spans) { 5456 if (doc.cm && !doc.cm.curOp) 5457 { return operation(doc.cm, makeChangeSingleDoc)(doc, change, selAfter, spans) } 5458 5459 if (change.to.line < doc.first) { 5460 shiftDoc(doc, change.text.length - 1 - (change.to.line - change.from.line)); 5461 return 5462 } 5463 if (change.from.line > doc.lastLine()) { return } 5464 5465 // Clip the change to the size of this doc 5466 if (change.from.line < doc.first) { 5467 var shift = change.text.length - 1 - (doc.first - change.from.line); 5468 shiftDoc(doc, shift); 5469 change = {from: Pos(doc.first, 0), to: Pos(change.to.line + shift, change.to.ch), 5470 text: [lst(change.text)], origin: change.origin}; 5471 } 5472 var last = doc.lastLine(); 5473 if (change.to.line > last) { 5474 change = {from: change.from, to: Pos(last, getLine(doc, last).text.length), 5475 text: [change.text[0]], origin: change.origin}; 5476 } 5477 5478 change.removed = getBetween(doc, change.from, change.to); 5479 5480 if (!selAfter) { selAfter = computeSelAfterChange(doc, change); } 5481 if (doc.cm) { makeChangeSingleDocInEditor(doc.cm, change, spans); } 5482 else { updateDoc(doc, change, spans); } 5483 setSelectionNoUndo(doc, selAfter, sel_dontScroll); 5484 5485 if (doc.cantEdit && skipAtomic(doc, Pos(doc.firstLine(), 0))) 5486 { doc.cantEdit = false; } 5487 } 5488 5489 // Handle the interaction of a change to a document with the editor 5490 // that this document is part of. 5491 function makeChangeSingleDocInEditor(cm, change, spans) { 5492 var doc = cm.doc, display = cm.display, from = change.from, to = change.to; 5493 5494 var recomputeMaxLength = false, checkWidthStart = from.line; 5495 if (!cm.options.lineWrapping) { 5496 checkWidthStart = lineNo(visualLine(getLine(doc, from.line))); 5497 doc.iter(checkWidthStart, to.line + 1, function (line) { 5498 if (line == display.maxLine) { 5499 recomputeMaxLength = true; 5500 return true 5501 } 5502 }); 5503 } 5504 5505 if (doc.sel.contains(change.from, change.to) > -1) 5506 { signalCursorActivity(cm); } 5507 5508 updateDoc(doc, change, spans, estimateHeight(cm)); 5509 5510 if (!cm.options.lineWrapping) { 5511 doc.iter(checkWidthStart, from.line + change.text.length, function (line) { 5512 var len = lineLength(line); 5513 if (len > display.maxLineLength) { 5514 display.maxLine = line; 5515 display.maxLineLength = len; 5516 display.maxLineChanged = true; 5517 recomputeMaxLength = false; 5518 } 5519 }); 5520 if (recomputeMaxLength) { cm.curOp.updateMaxLine = true; } 5521 } 5522 5523 retreatFrontier(doc, from.line); 5524 startWorker(cm, 400); 5525 5526 var lendiff = change.text.length - (to.line - from.line) - 1; 5527 // Remember that these lines changed, for updating the display 5528 if (change.full) 5529 { regChange(cm); } 5530 else if (from.line == to.line && change.text.length == 1 && !isWholeLineUpdate(cm.doc, change)) 5531 { regLineChange(cm, from.line, "text"); } 5532 else 5533 { regChange(cm, from.line, to.line + 1, lendiff); } 5534 5535 var changesHandler = hasHandler(cm, "changes"), changeHandler = hasHandler(cm, "change"); 5536 if (changeHandler || changesHandler) { 5537 var obj = { 5538 from: from, to: to, 5539 text: change.text, 5540 removed: change.removed, 5541 origin: change.origin 5542 }; 5543 if (changeHandler) { signalLater(cm, "change", cm, obj); } 5544 if (changesHandler) { (cm.curOp.changeObjs || (cm.curOp.changeObjs = [])).push(obj); } 5545 } 5546 cm.display.selForContextMenu = null; 5547 } 5548 5549 function replaceRange(doc, code, from, to, origin) { 5550 var assign; 5551 5552 if (!to) { to = from; } 5553 if (cmp(to, from) < 0) { (assign = [to, from], from = assign[0], to = assign[1]); } 5554 if (typeof code == "string") { code = doc.splitLines(code); } 5555 makeChange(doc, {from: from, to: to, text: code, origin: origin}); 5556 } 5557 5558 // Rebasing/resetting history to deal with externally-sourced changes 5559 5560 function rebaseHistSelSingle(pos, from, to, diff) { 5561 if (to < pos.line) { 5562 pos.line += diff; 5563 } else if (from < pos.line) { 5564 pos.line = from; 5565 pos.ch = 0; 5566 } 5567 } 5568 5569 // Tries to rebase an array of history events given a change in the 5570 // document. If the change touches the same lines as the event, the 5571 // event, and everything 'behind' it, is discarded. If the change is 5572 // before the event, the event's positions are updated. Uses a 5573 // copy-on-write scheme for the positions, to avoid having to 5574 // reallocate them all on every rebase, but also avoid problems with 5575 // shared position objects being unsafely updated. 5576 function rebaseHistArray(array, from, to, diff) { 5577 for (var i = 0; i < array.length; ++i) { 5578 var sub = array[i], ok = true; 5579 if (sub.ranges) { 5580 if (!sub.copied) { sub = array[i] = sub.deepCopy(); sub.copied = true; } 5581 for (var j = 0; j < sub.ranges.length; j++) { 5582 rebaseHistSelSingle(sub.ranges[j].anchor, from, to, diff); 5583 rebaseHistSelSingle(sub.ranges[j].head, from, to, diff); 5584 } 5585 continue 5586 } 5587 for (var j$1 = 0; j$1 < sub.changes.length; ++j$1) { 5588 var cur = sub.changes[j$1]; 5589 if (to < cur.from.line) { 5590 cur.from = Pos(cur.from.line + diff, cur.from.ch); 5591 cur.to = Pos(cur.to.line + diff, cur.to.ch); 5592 } else if (from <= cur.to.line) { 5593 ok = false; 5594 break 5595 } 5596 } 5597 if (!ok) { 5598 array.splice(0, i + 1); 5599 i = 0; 5600 } 5601 } 5602 } 5603 5604 function rebaseHist(hist, change) { 5605 var from = change.from.line, to = change.to.line, diff = change.text.length - (to - from) - 1; 5606 rebaseHistArray(hist.done, from, to, diff); 5607 rebaseHistArray(hist.undone, from, to, diff); 5608 } 5609 5610 // Utility for applying a change to a line by handle or number, 5611 // returning the number and optionally registering the line as 5612 // changed. 5613 function changeLine(doc, handle, changeType, op) { 5614 var no = handle, line = handle; 5615 if (typeof handle == "number") { line = getLine(doc, clipLine(doc, handle)); } 5616 else { no = lineNo(handle); } 5617 if (no == null) { return null } 5618 if (op(line, no) && doc.cm) { regLineChange(doc.cm, no, changeType); } 5619 return line 5620 } 5621 5622 // The document is represented as a BTree consisting of leaves, with 5623 // chunk of lines in them, and branches, with up to ten leaves or 5624 // other branch nodes below them. The top node is always a branch 5625 // node, and is the document object itself (meaning it has 5626 // additional methods and properties). 5627 // 5628 // All nodes have parent links. The tree is used both to go from 5629 // line numbers to line objects, and to go from objects to numbers. 5630 // It also indexes by height, and is used to convert between height 5631 // and line object, and to find the total height of the document. 5632 // 5633 // See also http://marijnhaverbeke.nl/blog/codemirror-line-tree.html 5634 5635 function LeafChunk(lines) { 5636 this.lines = lines; 5637 this.parent = null; 5638 var height = 0; 5639 for (var i = 0; i < lines.length; ++i) { 5640 lines[i].parent = this; 5641 height += lines[i].height; 5642 } 5643 this.height = height; 5644 } 5645 5646 LeafChunk.prototype = { 5647 chunkSize: function() { return this.lines.length }, 5648 5649 // Remove the n lines at offset 'at'. 5650 removeInner: function(at, n) { 5651 for (var i = at, e = at + n; i < e; ++i) { 5652 var line = this.lines[i]; 5653 this.height -= line.height; 5654 cleanUpLine(line); 5655 signalLater(line, "delete"); 5656 } 5657 this.lines.splice(at, n); 5658 }, 5659 5660 // Helper used to collapse a small branch into a single leaf. 5661 collapse: function(lines) { 5662 lines.push.apply(lines, this.lines); 5663 }, 5664 5665 // Insert the given array of lines at offset 'at', count them as 5666 // having the given height. 5667 insertInner: function(at, lines, height) { 5668 this.height += height; 5669 this.lines = this.lines.slice(0, at).concat(lines).concat(this.lines.slice(at)); 5670 for (var i = 0; i < lines.length; ++i) { lines[i].parent = this; } 5671 }, 5672 5673 // Used to iterate over a part of the tree. 5674 iterN: function(at, n, op) { 5675 for (var e = at + n; at < e; ++at) 5676 { if (op(this.lines[at])) { return true } } 5677 } 5678 }; 5679 5680 function BranchChunk(children) { 5681 this.children = children; 5682 var size = 0, height = 0; 5683 for (var i = 0; i < children.length; ++i) { 5684 var ch = children[i]; 5685 size += ch.chunkSize(); height += ch.height; 5686 ch.parent = this; 5687 } 5688 this.size = size; 5689 this.height = height; 5690 this.parent = null; 5691 } 5692 5693 BranchChunk.prototype = { 5694 chunkSize: function() { return this.size }, 5695 5696 removeInner: function(at, n) { 5697 this.size -= n; 5698 for (var i = 0; i < this.children.length; ++i) { 5699 var child = this.children[i], sz = child.chunkSize(); 5700 if (at < sz) { 5701 var rm = Math.min(n, sz - at), oldHeight = child.height; 5702 child.removeInner(at, rm); 5703 this.height -= oldHeight - child.height; 5704 if (sz == rm) { this.children.splice(i--, 1); child.parent = null; } 5705 if ((n -= rm) == 0) { break } 5706 at = 0; 5707 } else { at -= sz; } 5708 } 5709 // If the result is smaller than 25 lines, ensure that it is a 5710 // single leaf node. 5711 if (this.size - n < 25 && 5712 (this.children.length > 1 || !(this.children[0] instanceof LeafChunk))) { 5713 var lines = []; 5714 this.collapse(lines); 5715 this.children = [new LeafChunk(lines)]; 5716 this.children[0].parent = this; 5717 } 5718 }, 5719 5720 collapse: function(lines) { 5721 for (var i = 0; i < this.children.length; ++i) { this.children[i].collapse(lines); } 5722 }, 5723 5724 insertInner: function(at, lines, height) { 5725 this.size += lines.length; 5726 this.height += height; 5727 for (var i = 0; i < this.children.length; ++i) { 5728 var child = this.children[i], sz = child.chunkSize(); 5729 if (at <= sz) { 5730 child.insertInner(at, lines, height); 5731 if (child.lines && child.lines.length > 50) { 5732 // To avoid memory thrashing when child.lines is huge (e.g. first view of a large file), it's never spliced. 5733 // Instead, small slices are taken. They're taken in order because sequential memory accesses are fastest. 5734 var remaining = child.lines.length % 25 + 25; 5735 for (var pos = remaining; pos < child.lines.length;) { 5736 var leaf = new LeafChunk(child.lines.slice(pos, pos += 25)); 5737 child.height -= leaf.height; 5738 this.children.splice(++i, 0, leaf); 5739 leaf.parent = this; 5740 } 5741 child.lines = child.lines.slice(0, remaining); 5742 this.maybeSpill(); 5743 } 5744 break 5745 } 5746 at -= sz; 5747 } 5748 }, 5749 5750 // When a node has grown, check whether it should be split. 5751 maybeSpill: function() { 5752 if (this.children.length <= 10) { return } 5753 var me = this; 5754 do { 5755 var spilled = me.children.splice(me.children.length - 5, 5); 5756 var sibling = new BranchChunk(spilled); 5757 if (!me.parent) { // Become the parent node 5758 var copy = new BranchChunk(me.children); 5759 copy.parent = me; 5760 me.children = [copy, sibling]; 5761 me = copy; 5762 } else { 5763 me.size -= sibling.size; 5764 me.height -= sibling.height; 5765 var myIndex = indexOf(me.parent.children, me); 5766 me.parent.children.splice(myIndex + 1, 0, sibling); 5767 } 5768 sibling.parent = me.parent; 5769 } while (me.children.length > 10) 5770 me.parent.maybeSpill(); 5771 }, 5772 5773 iterN: function(at, n, op) { 5774 for (var i = 0; i < this.children.length; ++i) { 5775 var child = this.children[i], sz = child.chunkSize(); 5776 if (at < sz) { 5777 var used = Math.min(n, sz - at); 5778 if (child.iterN(at, used, op)) { return true } 5779 if ((n -= used) == 0) { break } 5780 at = 0; 5781 } else { at -= sz; } 5782 } 5783 } 5784 }; 5785 5786 // Line widgets are block elements displayed above or below a line. 5787 5788 var LineWidget = function(doc, node, options) { 5789 if (options) { for (var opt in options) { if (options.hasOwnProperty(opt)) 5790 { this[opt] = options[opt]; } } } 5791 this.doc = doc; 5792 this.node = node; 5793 }; 5794 5795 LineWidget.prototype.clear = function () { 5796 var cm = this.doc.cm, ws = this.line.widgets, line = this.line, no = lineNo(line); 5797 if (no == null || !ws) { return } 5798 for (var i = 0; i < ws.length; ++i) { if (ws[i] == this) { ws.splice(i--, 1); } } 5799 if (!ws.length) { line.widgets = null; } 5800 var height = widgetHeight(this); 5801 updateLineHeight(line, Math.max(0, line.height - height)); 5802 if (cm) { 5803 runInOp(cm, function () { 5804 adjustScrollWhenAboveVisible(cm, line, -height); 5805 regLineChange(cm, no, "widget"); 5806 }); 5807 signalLater(cm, "lineWidgetCleared", cm, this, no); 5808 } 5809 }; 5810 5811 LineWidget.prototype.changed = function () { 5812 var this$1 = this; 5813 5814 var oldH = this.height, cm = this.doc.cm, line = this.line; 5815 this.height = null; 5816 var diff = widgetHeight(this) - oldH; 5817 if (!diff) { return } 5818 if (!lineIsHidden(this.doc, line)) { updateLineHeight(line, line.height + diff); } 5819 if (cm) { 5820 runInOp(cm, function () { 5821 cm.curOp.forceUpdate = true; 5822 adjustScrollWhenAboveVisible(cm, line, diff); 5823 signalLater(cm, "lineWidgetChanged", cm, this$1, lineNo(line)); 5824 }); 5825 } 5826 }; 5827 eventMixin(LineWidget); 5828 5829 function adjustScrollWhenAboveVisible(cm, line, diff) { 5830 if (heightAtLine(line) < ((cm.curOp && cm.curOp.scrollTop) || cm.doc.scrollTop)) 5831 { addToScrollTop(cm, diff); } 5832 } 5833 5834 function addLineWidget(doc, handle, node, options) { 5835 var widget = new LineWidget(doc, node, options); 5836 var cm = doc.cm; 5837 if (cm && widget.noHScroll) { cm.display.alignWidgets = true; } 5838 changeLine(doc, handle, "widget", function (line) { 5839 var widgets = line.widgets || (line.widgets = []); 5840 if (widget.insertAt == null) { widgets.push(widget); } 5841 else { widgets.splice(Math.min(widgets.length, Math.max(0, widget.insertAt)), 0, widget); } 5842 widget.line = line; 5843 if (cm && !lineIsHidden(doc, line)) { 5844 var aboveVisible = heightAtLine(line) < doc.scrollTop; 5845 updateLineHeight(line, line.height + widgetHeight(widget)); 5846 if (aboveVisible) { addToScrollTop(cm, widget.height); } 5847 cm.curOp.forceUpdate = true; 5848 } 5849 return true 5850 }); 5851 if (cm) { signalLater(cm, "lineWidgetAdded", cm, widget, typeof handle == "number" ? handle : lineNo(handle)); } 5852 return widget 5853 } 5854 5855 // TEXTMARKERS 5856 5857 // Created with markText and setBookmark methods. A TextMarker is a 5858 // handle that can be used to clear or find a marked position in the 5859 // document. Line objects hold arrays (markedSpans) containing 5860 // {from, to, marker} object pointing to such marker objects, and 5861 // indicating that such a marker is present on that line. Multiple 5862 // lines may point to the same marker when it spans across lines. 5863 // The spans will have null for their from/to properties when the 5864 // marker continues beyond the start/end of the line. Markers have 5865 // links back to the lines they currently touch. 5866 5867 // Collapsed markers have unique ids, in order to be able to order 5868 // them, which is needed for uniquely determining an outer marker 5869 // when they overlap (they may nest, but not partially overlap). 5870 var nextMarkerId = 0; 5871 5872 var TextMarker = function(doc, type) { 5873 this.lines = []; 5874 this.type = type; 5875 this.doc = doc; 5876 this.id = ++nextMarkerId; 5877 }; 5878 5879 // Clear the marker. 5880 TextMarker.prototype.clear = function () { 5881 if (this.explicitlyCleared) { return } 5882 var cm = this.doc.cm, withOp = cm && !cm.curOp; 5883 if (withOp) { startOperation(cm); } 5884 if (hasHandler(this, "clear")) { 5885 var found = this.find(); 5886 if (found) { signalLater(this, "clear", found.from, found.to); } 5887 } 5888 var min = null, max = null; 5889 for (var i = 0; i < this.lines.length; ++i) { 5890 var line = this.lines[i]; 5891 var span = getMarkedSpanFor(line.markedSpans, this); 5892 if (cm && !this.collapsed) { regLineChange(cm, lineNo(line), "text"); } 5893 else if (cm) { 5894 if (span.to != null) { max = lineNo(line); } 5895 if (span.from != null) { min = lineNo(line); } 5896 } 5897 line.markedSpans = removeMarkedSpan(line.markedSpans, span); 5898 if (span.from == null && this.collapsed && !lineIsHidden(this.doc, line) && cm) 5899 { updateLineHeight(line, textHeight(cm.display)); } 5900 } 5901 if (cm && this.collapsed && !cm.options.lineWrapping) { for (var i$1 = 0; i$1 < this.lines.length; ++i$1) { 5902 var visual = visualLine(this.lines[i$1]), len = lineLength(visual); 5903 if (len > cm.display.maxLineLength) { 5904 cm.display.maxLine = visual; 5905 cm.display.maxLineLength = len; 5906 cm.display.maxLineChanged = true; 5907 } 5908 } } 5909 5910 if (min != null && cm && this.collapsed) { regChange(cm, min, max + 1); } 5911 this.lines.length = 0; 5912 this.explicitlyCleared = true; 5913 if (this.atomic && this.doc.cantEdit) { 5914 this.doc.cantEdit = false; 5915 if (cm) { reCheckSelection(cm.doc); } 5916 } 5917 if (cm) { signalLater(cm, "markerCleared", cm, this, min, max); } 5918 if (withOp) { endOperation(cm); } 5919 if (this.parent) { this.parent.clear(); } 5920 }; 5921 5922 // Find the position of the marker in the document. Returns a {from, 5923 // to} object by default. Side can be passed to get a specific side 5924 // -- 0 (both), -1 (left), or 1 (right). When lineObj is true, the 5925 // Pos objects returned contain a line object, rather than a line 5926 // number (used to prevent looking up the same line twice). 5927 TextMarker.prototype.find = function (side, lineObj) { 5928 if (side == null && this.type == "bookmark") { side = 1; } 5929 var from, to; 5930 for (var i = 0; i < this.lines.length; ++i) { 5931 var line = this.lines[i]; 5932 var span = getMarkedSpanFor(line.markedSpans, this); 5933 if (span.from != null) { 5934 from = Pos(lineObj ? line : lineNo(line), span.from); 5935 if (side == -1) { return from } 5936 } 5937 if (span.to != null) { 5938 to = Pos(lineObj ? line : lineNo(line), span.to); 5939 if (side == 1) { return to } 5940 } 5941 } 5942 return from && {from: from, to: to} 5943 }; 5944 5945 // Signals that the marker's widget changed, and surrounding layout 5946 // should be recomputed. 5947 TextMarker.prototype.changed = function () { 5948 var this$1 = this; 5949 5950 var pos = this.find(-1, true), widget = this, cm = this.doc.cm; 5951 if (!pos || !cm) { return } 5952 runInOp(cm, function () { 5953 var line = pos.line, lineN = lineNo(pos.line); 5954 var view = findViewForLine(cm, lineN); 5955 if (view) { 5956 clearLineMeasurementCacheFor(view); 5957 cm.curOp.selectionChanged = cm.curOp.forceUpdate = true; 5958 } 5959 cm.curOp.updateMaxLine = true; 5960 if (!lineIsHidden(widget.doc, line) && widget.height != null) { 5961 var oldHeight = widget.height; 5962 widget.height = null; 5963 var dHeight = widgetHeight(widget) - oldHeight; 5964 if (dHeight) 5965 { updateLineHeight(line, line.height + dHeight); } 5966 } 5967 signalLater(cm, "markerChanged", cm, this$1); 5968 }); 5969 }; 5970 5971 TextMarker.prototype.attachLine = function (line) { 5972 if (!this.lines.length && this.doc.cm) { 5973 var op = this.doc.cm.curOp; 5974 if (!op.maybeHiddenMarkers || indexOf(op.maybeHiddenMarkers, this) == -1) 5975 { (op.maybeUnhiddenMarkers || (op.maybeUnhiddenMarkers = [])).push(this); } 5976 } 5977 this.lines.push(line); 5978 }; 5979 5980 TextMarker.prototype.detachLine = function (line) { 5981 this.lines.splice(indexOf(this.lines, line), 1); 5982 if (!this.lines.length && this.doc.cm) { 5983 var op = this.doc.cm.curOp 5984 ;(op.maybeHiddenMarkers || (op.maybeHiddenMarkers = [])).push(this); 5985 } 5986 }; 5987 eventMixin(TextMarker); 5988 5989 // Create a marker, wire it up to the right lines, and 5990 function markText(doc, from, to, options, type) { 5991 // Shared markers (across linked documents) are handled separately 5992 // (markTextShared will call out to this again, once per 5993 // document). 5994 if (options && options.shared) { return markTextShared(doc, from, to, options, type) } 5995 // Ensure we are in an operation. 5996 if (doc.cm && !doc.cm.curOp) { return operation(doc.cm, markText)(doc, from, to, options, type) } 5997 5998 var marker = new TextMarker(doc, type), diff = cmp(from, to); 5999 if (options) { copyObj(options, marker, false); } 6000 // Don't connect empty markers unless clearWhenEmpty is false 6001 if (diff > 0 || diff == 0 && marker.clearWhenEmpty !== false) 6002 { return marker } 6003 if (marker.replacedWith) { 6004 // Showing up as a widget implies collapsed (widget replaces text) 6005 marker.collapsed = true; 6006 marker.widgetNode = eltP("span", [marker.replacedWith], "CodeMirror-widget"); 6007 if (!options.handleMouseEvents) { marker.widgetNode.setAttribute("cm-ignore-events", "true"); } 6008 if (options.insertLeft) { marker.widgetNode.insertLeft = true; } 6009 } 6010 if (marker.collapsed) { 6011 if (conflictingCollapsedRange(doc, from.line, from, to, marker) || 6012 from.line != to.line && conflictingCollapsedRange(doc, to.line, from, to, marker)) 6013 { throw new Error("Inserting collapsed marker partially overlapping an existing one") } 6014 seeCollapsedSpans(); 6015 } 6016 6017 if (marker.addToHistory) 6018 { addChangeToHistory(doc, {from: from, to: to, origin: "markText"}, doc.sel, NaN); } 6019 6020 var curLine = from.line, cm = doc.cm, updateMaxLine; 6021 doc.iter(curLine, to.line + 1, function (line) { 6022 if (cm && marker.collapsed && !cm.options.lineWrapping && visualLine(line) == cm.display.maxLine) 6023 { updateMaxLine = true; } 6024 if (marker.collapsed && curLine != from.line) { updateLineHeight(line, 0); } 6025 addMarkedSpan(line, new MarkedSpan(marker, 6026 curLine == from.line ? from.ch : null, 6027 curLine == to.line ? to.ch : null), doc.cm && doc.cm.curOp); 6028 ++curLine; 6029 }); 6030 // lineIsHidden depends on the presence of the spans, so needs a second pass 6031 if (marker.collapsed) { doc.iter(from.line, to.line + 1, function (line) { 6032 if (lineIsHidden(doc, line)) { updateLineHeight(line, 0); } 6033 }); } 6034 6035 if (marker.clearOnEnter) { on(marker, "beforeCursorEnter", function () { return marker.clear(); }); } 6036 6037 if (marker.readOnly) { 6038 seeReadOnlySpans(); 6039 if (doc.history.done.length || doc.history.undone.length) 6040 { doc.clearHistory(); } 6041 } 6042 if (marker.collapsed) { 6043 marker.id = ++nextMarkerId; 6044 marker.atomic = true; 6045 } 6046 if (cm) { 6047 // Sync editor state 6048 if (updateMaxLine) { cm.curOp.updateMaxLine = true; } 6049 if (marker.collapsed) 6050 { regChange(cm, from.line, to.line + 1); } 6051 else if (marker.className || marker.startStyle || marker.endStyle || marker.css || 6052 marker.attributes || marker.title) 6053 { for (var i = from.line; i <= to.line; i++) { regLineChange(cm, i, "text"); } } 6054 if (marker.atomic) { reCheckSelection(cm.doc); } 6055 signalLater(cm, "markerAdded", cm, marker); 6056 } 6057 return marker 6058 } 6059 6060 // SHARED TEXTMARKERS 6061 6062 // A shared marker spans multiple linked documents. It is 6063 // implemented as a meta-marker-object controlling multiple normal 6064 // markers. 6065 var SharedTextMarker = function(markers, primary) { 6066 this.markers = markers; 6067 this.primary = primary; 6068 for (var i = 0; i < markers.length; ++i) 6069 { markers[i].parent = this; } 6070 }; 6071 6072 SharedTextMarker.prototype.clear = function () { 6073 if (this.explicitlyCleared) { return } 6074 this.explicitlyCleared = true; 6075 for (var i = 0; i < this.markers.length; ++i) 6076 { this.markers[i].clear(); } 6077 signalLater(this, "clear"); 6078 }; 6079 6080 SharedTextMarker.prototype.find = function (side, lineObj) { 6081 return this.primary.find(side, lineObj) 6082 }; 6083 eventMixin(SharedTextMarker); 6084 6085 function markTextShared(doc, from, to, options, type) { 6086 options = copyObj(options); 6087 options.shared = false; 6088 var markers = [markText(doc, from, to, options, type)], primary = markers[0]; 6089 var widget = options.widgetNode; 6090 linkedDocs(doc, function (doc) { 6091 if (widget) { options.widgetNode = widget.cloneNode(true); } 6092 markers.push(markText(doc, clipPos(doc, from), clipPos(doc, to), options, type)); 6093 for (var i = 0; i < doc.linked.length; ++i) 6094 { if (doc.linked[i].isParent) { return } } 6095 primary = lst(markers); 6096 }); 6097 return new SharedTextMarker(markers, primary) 6098 } 6099 6100 function findSharedMarkers(doc) { 6101 return doc.findMarks(Pos(doc.first, 0), doc.clipPos(Pos(doc.lastLine())), function (m) { return m.parent; }) 6102 } 6103 6104 function copySharedMarkers(doc, markers) { 6105 for (var i = 0; i < markers.length; i++) { 6106 var marker = markers[i], pos = marker.find(); 6107 var mFrom = doc.clipPos(pos.from), mTo = doc.clipPos(pos.to); 6108 if (cmp(mFrom, mTo)) { 6109 var subMark = markText(doc, mFrom, mTo, marker.primary, marker.primary.type); 6110 marker.markers.push(subMark); 6111 subMark.parent = marker; 6112 } 6113 } 6114 } 6115 6116 function detachSharedMarkers(markers) { 6117 var loop = function ( i ) { 6118 var marker = markers[i], linked = [marker.primary.doc]; 6119 linkedDocs(marker.primary.doc, function (d) { return linked.push(d); }); 6120 for (var j = 0; j < marker.markers.length; j++) { 6121 var subMarker = marker.markers[j]; 6122 if (indexOf(linked, subMarker.doc) == -1) { 6123 subMarker.parent = null; 6124 marker.markers.splice(j--, 1); 6125 } 6126 } 6127 }; 6128 6129 for (var i = 0; i < markers.length; i++) loop( i ); 6130 } 6131 6132 var nextDocId = 0; 6133 var Doc = function(text, mode, firstLine, lineSep, direction) { 6134 if (!(this instanceof Doc)) { return new Doc(text, mode, firstLine, lineSep, direction) } 6135 if (firstLine == null) { firstLine = 0; } 6136 6137 BranchChunk.call(this, [new LeafChunk([new Line("", null)])]); 6138 this.first = firstLine; 6139 this.scrollTop = this.scrollLeft = 0; 6140 this.cantEdit = false; 6141 this.cleanGeneration = 1; 6142 this.modeFrontier = this.highlightFrontier = firstLine; 6143 var start = Pos(firstLine, 0); 6144 this.sel = simpleSelection(start); 6145 this.history = new History(null); 6146 this.id = ++nextDocId; 6147 this.modeOption = mode; 6148 this.lineSep = lineSep; 6149 this.direction = (direction == "rtl") ? "rtl" : "ltr"; 6150 this.extend = false; 6151 6152 if (typeof text == "string") { text = this.splitLines(text); } 6153 updateDoc(this, {from: start, to: start, text: text}); 6154 setSelection(this, simpleSelection(start), sel_dontScroll); 6155 }; 6156 6157 Doc.prototype = createObj(BranchChunk.prototype, { 6158 constructor: Doc, 6159 // Iterate over the document. Supports two forms -- with only one 6160 // argument, it calls that for each line in the document. With 6161 // three, it iterates over the range given by the first two (with 6162 // the second being non-inclusive). 6163 iter: function(from, to, op) { 6164 if (op) { this.iterN(from - this.first, to - from, op); } 6165 else { this.iterN(this.first, this.first + this.size, from); } 6166 }, 6167 6168 // Non-public interface for adding and removing lines. 6169 insert: function(at, lines) { 6170 var height = 0; 6171 for (var i = 0; i < lines.length; ++i) { height += lines[i].height; } 6172 this.insertInner(at - this.first, lines, height); 6173 }, 6174 remove: function(at, n) { this.removeInner(at - this.first, n); }, 6175 6176 // From here, the methods are part of the public interface. Most 6177 // are also available from CodeMirror (editor) instances. 6178 6179 getValue: function(lineSep) { 6180 var lines = getLines(this, this.first, this.first + this.size); 6181 if (lineSep === false) { return lines } 6182 return lines.join(lineSep || this.lineSeparator()) 6183 }, 6184 setValue: docMethodOp(function(code) { 6185 var top = Pos(this.first, 0), last = this.first + this.size - 1; 6186 makeChange(this, {from: top, to: Pos(last, getLine(this, last).text.length), 6187 text: this.splitLines(code), origin: "setValue", full: true}, true); 6188 if (this.cm) { scrollToCoords(this.cm, 0, 0); } 6189 setSelection(this, simpleSelection(top), sel_dontScroll); 6190 }), 6191 replaceRange: function(code, from, to, origin) { 6192 from = clipPos(this, from); 6193 to = to ? clipPos(this, to) : from; 6194 replaceRange(this, code, from, to, origin); 6195 }, 6196 getRange: function(from, to, lineSep) { 6197 var lines = getBetween(this, clipPos(this, from), clipPos(this, to)); 6198 if (lineSep === false) { return lines } 6199 if (lineSep === '') { return lines.join('') } 6200 return lines.join(lineSep || this.lineSeparator()) 6201 }, 6202 6203 getLine: function(line) {var l = this.getLineHandle(line); return l && l.text}, 6204 6205 getLineHandle: function(line) {if (isLine(this, line)) { return getLine(this, line) }}, 6206 getLineNumber: function(line) {return lineNo(line)}, 6207 6208 getLineHandleVisualStart: function(line) { 6209 if (typeof line == "number") { line = getLine(this, line); } 6210 return visualLine(line) 6211 }, 6212 6213 lineCount: function() {return this.size}, 6214 firstLine: function() {return this.first}, 6215 lastLine: function() {return this.first + this.size - 1}, 6216 6217 clipPos: function(pos) {return clipPos(this, pos)}, 6218 6219 getCursor: function(start) { 6220 var range = this.sel.primary(), pos; 6221 if (start == null || start == "head") { pos = range.head; } 6222 else if (start == "anchor") { pos = range.anchor; } 6223 else if (start == "end" || start == "to" || start === false) { pos = range.to(); } 6224 else { pos = range.from(); } 6225 return pos 6226 }, 6227 listSelections: function() { return this.sel.ranges }, 6228 somethingSelected: function() {return this.sel.somethingSelected()}, 6229 6230 setCursor: docMethodOp(function(line, ch, options) { 6231 setSimpleSelection(this, clipPos(this, typeof line == "number" ? Pos(line, ch || 0) : line), null, options); 6232 }), 6233 setSelection: docMethodOp(function(anchor, head, options) { 6234 setSimpleSelection(this, clipPos(this, anchor), clipPos(this, head || anchor), options); 6235 }), 6236 extendSelection: docMethodOp(function(head, other, options) { 6237 extendSelection(this, clipPos(this, head), other && clipPos(this, other), options); 6238 }), 6239 extendSelections: docMethodOp(function(heads, options) { 6240 extendSelections(this, clipPosArray(this, heads), options); 6241 }), 6242 extendSelectionsBy: docMethodOp(function(f, options) { 6243 var heads = map(this.sel.ranges, f); 6244 extendSelections(this, clipPosArray(this, heads), options); 6245 }), 6246 setSelections: docMethodOp(function(ranges, primary, options) { 6247 if (!ranges.length) { return } 6248 var out = []; 6249 for (var i = 0; i < ranges.length; i++) 6250 { out[i] = new Range(clipPos(this, ranges[i].anchor), 6251 clipPos(this, ranges[i].head || ranges[i].anchor)); } 6252 if (primary == null) { primary = Math.min(ranges.length - 1, this.sel.primIndex); } 6253 setSelection(this, normalizeSelection(this.cm, out, primary), options); 6254 }), 6255 addSelection: docMethodOp(function(anchor, head, options) { 6256 var ranges = this.sel.ranges.slice(0); 6257 ranges.push(new Range(clipPos(this, anchor), clipPos(this, head || anchor))); 6258 setSelection(this, normalizeSelection(this.cm, ranges, ranges.length - 1), options); 6259 }), 6260 6261 getSelection: function(lineSep) { 6262 var ranges = this.sel.ranges, lines; 6263 for (var i = 0; i < ranges.length; i++) { 6264 var sel = getBetween(this, ranges[i].from(), ranges[i].to()); 6265 lines = lines ? lines.concat(sel) : sel; 6266 } 6267 if (lineSep === false) { return lines } 6268 else { return lines.join(lineSep || this.lineSeparator()) } 6269 }, 6270 getSelections: function(lineSep) { 6271 var parts = [], ranges = this.sel.ranges; 6272 for (var i = 0; i < ranges.length; i++) { 6273 var sel = getBetween(this, ranges[i].from(), ranges[i].to()); 6274 if (lineSep !== false) { sel = sel.join(lineSep || this.lineSeparator()); } 6275 parts[i] = sel; 6276 } 6277 return parts 6278 }, 6279 replaceSelection: function(code, collapse, origin) { 6280 var dup = []; 6281 for (var i = 0; i < this.sel.ranges.length; i++) 6282 { dup[i] = code; } 6283 this.replaceSelections(dup, collapse, origin || "+input"); 6284 }, 6285 replaceSelections: docMethodOp(function(code, collapse, origin) { 6286 var changes = [], sel = this.sel; 6287 for (var i = 0; i < sel.ranges.length; i++) { 6288 var range = sel.ranges[i]; 6289 changes[i] = {from: range.from(), to: range.to(), text: this.splitLines(code[i]), origin: origin}; 6290 } 6291 var newSel = collapse && collapse != "end" && computeReplacedSel(this, changes, collapse); 6292 for (var i$1 = changes.length - 1; i$1 >= 0; i$1--) 6293 { makeChange(this, changes[i$1]); } 6294 if (newSel) { setSelectionReplaceHistory(this, newSel); } 6295 else if (this.cm) { ensureCursorVisible(this.cm); } 6296 }), 6297 undo: docMethodOp(function() {makeChangeFromHistory(this, "undo");}), 6298 redo: docMethodOp(function() {makeChangeFromHistory(this, "redo");}), 6299 undoSelection: docMethodOp(function() {makeChangeFromHistory(this, "undo", true);}), 6300 redoSelection: docMethodOp(function() {makeChangeFromHistory(this, "redo", true);}), 6301 6302 setExtending: function(val) {this.extend = val;}, 6303 getExtending: function() {return this.extend}, 6304 6305 historySize: function() { 6306 var hist = this.history, done = 0, undone = 0; 6307 for (var i = 0; i < hist.done.length; i++) { if (!hist.done[i].ranges) { ++done; } } 6308 for (var i$1 = 0; i$1 < hist.undone.length; i$1++) { if (!hist.undone[i$1].ranges) { ++undone; } } 6309 return {undo: done, redo: undone} 6310 }, 6311 clearHistory: function() { 6312 var this$1 = this; 6313 6314 this.history = new History(this.history); 6315 linkedDocs(this, function (doc) { return doc.history = this$1.history; }, true); 6316 }, 6317 6318 markClean: function() { 6319 this.cleanGeneration = this.changeGeneration(true); 6320 }, 6321 changeGeneration: function(forceSplit) { 6322 if (forceSplit) 6323 { this.history.lastOp = this.history.lastSelOp = this.history.lastOrigin = null; } 6324 return this.history.generation 6325 }, 6326 isClean: function (gen) { 6327 return this.history.generation == (gen || this.cleanGeneration) 6328 }, 6329 6330 getHistory: function() { 6331 return {done: copyHistoryArray(this.history.done), 6332 undone: copyHistoryArray(this.history.undone)} 6333 }, 6334 setHistory: function(histData) { 6335 var hist = this.history = new History(this.history); 6336 hist.done = copyHistoryArray(histData.done.slice(0), null, true); 6337 hist.undone = copyHistoryArray(histData.undone.slice(0), null, true); 6338 }, 6339 6340 setGutterMarker: docMethodOp(function(line, gutterID, value) { 6341 return changeLine(this, line, "gutter", function (line) { 6342 var markers = line.gutterMarkers || (line.gutterMarkers = {}); 6343 markers[gutterID] = value; 6344 if (!value && isEmpty(markers)) { line.gutterMarkers = null; } 6345 return true 6346 }) 6347 }), 6348 6349 clearGutter: docMethodOp(function(gutterID) { 6350 var this$1 = this; 6351 6352 this.iter(function (line) { 6353 if (line.gutterMarkers && line.gutterMarkers[gutterID]) { 6354 changeLine(this$1, line, "gutter", function () { 6355 line.gutterMarkers[gutterID] = null; 6356 if (isEmpty(line.gutterMarkers)) { line.gutterMarkers = null; } 6357 return true 6358 }); 6359 } 6360 }); 6361 }), 6362 6363 lineInfo: function(line) { 6364 var n; 6365 if (typeof line == "number") { 6366 if (!isLine(this, line)) { return null } 6367 n = line; 6368 line = getLine(this, line); 6369 if (!line) { return null } 6370 } else { 6371 n = lineNo(line); 6372 if (n == null) { return null } 6373 } 6374 return {line: n, handle: line, text: line.text, gutterMarkers: line.gutterMarkers, 6375 textClass: line.textClass, bgClass: line.bgClass, wrapClass: line.wrapClass, 6376 widgets: line.widgets} 6377 }, 6378 6379 addLineClass: docMethodOp(function(handle, where, cls) { 6380 return changeLine(this, handle, where == "gutter" ? "gutter" : "class", function (line) { 6381 var prop = where == "text" ? "textClass" 6382 : where == "background" ? "bgClass" 6383 : where == "gutter" ? "gutterClass" : "wrapClass"; 6384 if (!line[prop]) { line[prop] = cls; } 6385 else if (classTest(cls).test(line[prop])) { return false } 6386 else { line[prop] += " " + cls; } 6387 return true 6388 }) 6389 }), 6390 removeLineClass: docMethodOp(function(handle, where, cls) { 6391 return changeLine(this, handle, where == "gutter" ? "gutter" : "class", function (line) { 6392 var prop = where == "text" ? "textClass" 6393 : where == "background" ? "bgClass" 6394 : where == "gutter" ? "gutterClass" : "wrapClass"; 6395 var cur = line[prop]; 6396 if (!cur) { return false } 6397 else if (cls == null) { line[prop] = null; } 6398 else { 6399 var found = cur.match(classTest(cls)); 6400 if (!found) { return false } 6401 var end = found.index + found[0].length; 6402 line[prop] = cur.slice(0, found.index) + (!found.index || end == cur.length ? "" : " ") + cur.slice(end) || null; 6403 } 6404 return true 6405 }) 6406 }), 6407 6408 addLineWidget: docMethodOp(function(handle, node, options) { 6409 return addLineWidget(this, handle, node, options) 6410 }), 6411 removeLineWidget: function(widget) { widget.clear(); }, 6412 6413 markText: function(from, to, options) { 6414 return markText(this, clipPos(this, from), clipPos(this, to), options, options && options.type || "range") 6415 }, 6416 setBookmark: function(pos, options) { 6417 var realOpts = {replacedWith: options && (options.nodeType == null ? options.widget : options), 6418 insertLeft: options && options.insertLeft, 6419 clearWhenEmpty: false, shared: options && options.shared, 6420 handleMouseEvents: options && options.handleMouseEvents}; 6421 pos = clipPos(this, pos); 6422 return markText(this, pos, pos, realOpts, "bookmark") 6423 }, 6424 findMarksAt: function(pos) { 6425 pos = clipPos(this, pos); 6426 var markers = [], spans = getLine(this, pos.line).markedSpans; 6427 if (spans) { for (var i = 0; i < spans.length; ++i) { 6428 var span = spans[i]; 6429 if ((span.from == null || span.from <= pos.ch) && 6430 (span.to == null || span.to >= pos.ch)) 6431 { markers.push(span.marker.parent || span.marker); } 6432 } } 6433 return markers 6434 }, 6435 findMarks: function(from, to, filter) { 6436 from = clipPos(this, from); to = clipPos(this, to); 6437 var found = [], lineNo = from.line; 6438 this.iter(from.line, to.line + 1, function (line) { 6439 var spans = line.markedSpans; 6440 if (spans) { for (var i = 0; i < spans.length; i++) { 6441 var span = spans[i]; 6442 if (!(span.to != null && lineNo == from.line && from.ch >= span.to || 6443 span.from == null && lineNo != from.line || 6444 span.from != null && lineNo == to.line && span.from >= to.ch) && 6445 (!filter || filter(span.marker))) 6446 { found.push(span.marker.parent || span.marker); } 6447 } } 6448 ++lineNo; 6449 }); 6450 return found 6451 }, 6452 getAllMarks: function() { 6453 var markers = []; 6454 this.iter(function (line) { 6455 var sps = line.markedSpans; 6456 if (sps) { for (var i = 0; i < sps.length; ++i) 6457 { if (sps[i].from != null) { markers.push(sps[i].marker); } } } 6458 }); 6459 return markers 6460 }, 6461 6462 posFromIndex: function(off) { 6463 var ch, lineNo = this.first, sepSize = this.lineSeparator().length; 6464 this.iter(function (line) { 6465 var sz = line.text.length + sepSize; 6466 if (sz > off) { ch = off; return true } 6467 off -= sz; 6468 ++lineNo; 6469 }); 6470 return clipPos(this, Pos(lineNo, ch)) 6471 }, 6472 indexFromPos: function (coords) { 6473 coords = clipPos(this, coords); 6474 var index = coords.ch; 6475 if (coords.line < this.first || coords.ch < 0) { return 0 } 6476 var sepSize = this.lineSeparator().length; 6477 this.iter(this.first, coords.line, function (line) { // iter aborts when callback returns a truthy value 6478 index += line.text.length + sepSize; 6479 }); 6480 return index 6481 }, 6482 6483 copy: function(copyHistory) { 6484 var doc = new Doc(getLines(this, this.first, this.first + this.size), 6485 this.modeOption, this.first, this.lineSep, this.direction); 6486 doc.scrollTop = this.scrollTop; doc.scrollLeft = this.scrollLeft; 6487 doc.sel = this.sel; 6488 doc.extend = false; 6489 if (copyHistory) { 6490 doc.history.undoDepth = this.history.undoDepth; 6491 doc.setHistory(this.getHistory()); 6492 } 6493 return doc 6494 }, 6495 6496 linkedDoc: function(options) { 6497 if (!options) { options = {}; } 6498 var from = this.first, to = this.first + this.size; 6499 if (options.from != null && options.from > from) { from = options.from; } 6500 if (options.to != null && options.to < to) { to = options.to; } 6501 var copy = new Doc(getLines(this, from, to), options.mode || this.modeOption, from, this.lineSep, this.direction); 6502 if (options.sharedHist) { copy.history = this.history 6503 ; }(this.linked || (this.linked = [])).push({doc: copy, sharedHist: options.sharedHist}); 6504 copy.linked = [{doc: this, isParent: true, sharedHist: options.sharedHist}]; 6505 copySharedMarkers(copy, findSharedMarkers(this)); 6506 return copy 6507 }, 6508 unlinkDoc: function(other) { 6509 if (other instanceof CodeMirror) { other = other.doc; } 6510 if (this.linked) { for (var i = 0; i < this.linked.length; ++i) { 6511 var link = this.linked[i]; 6512 if (link.doc != other) { continue } 6513 this.linked.splice(i, 1); 6514 other.unlinkDoc(this); 6515 detachSharedMarkers(findSharedMarkers(this)); 6516 break 6517 } } 6518 // If the histories were shared, split them again 6519 if (other.history == this.history) { 6520 var splitIds = [other.id]; 6521 linkedDocs(other, function (doc) { return splitIds.push(doc.id); }, true); 6522 other.history = new History(null); 6523 other.history.done = copyHistoryArray(this.history.done, splitIds); 6524 other.history.undone = copyHistoryArray(this.history.undone, splitIds); 6525 } 6526 }, 6527 iterLinkedDocs: function(f) {linkedDocs(this, f);}, 6528 6529 getMode: function() {return this.mode}, 6530 getEditor: function() {return this.cm}, 6531 6532 splitLines: function(str) { 6533 if (this.lineSep) { return str.split(this.lineSep) } 6534 return splitLinesAuto(str) 6535 }, 6536 lineSeparator: function() { return this.lineSep || "\n" }, 6537 6538 setDirection: docMethodOp(function (dir) { 6539 if (dir != "rtl") { dir = "ltr"; } 6540 if (dir == this.direction) { return } 6541 this.direction = dir; 6542 this.iter(function (line) { return line.order = null; }); 6543 if (this.cm) { directionChanged(this.cm); } 6544 }) 6545 }); 6546 6547 // Public alias. 6548 Doc.prototype.eachLine = Doc.prototype.iter; 6549 6550 // Kludge to work around strange IE behavior where it'll sometimes 6551 // re-fire a series of drag-related events right after the drop (#1551) 6552 var lastDrop = 0; 6553 6554 function onDrop(e) { 6555 var cm = this; 6556 clearDragCursor(cm); 6557 if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e)) 6558 { return } 6559 e_preventDefault(e); 6560 if (ie) { lastDrop = +new Date; } 6561 var pos = posFromMouse(cm, e, true), files = e.dataTransfer.files; 6562 if (!pos || cm.isReadOnly()) { return } 6563 // Might be a file drop, in which case we simply extract the text 6564 // and insert it. 6565 if (files && files.length && window.FileReader && window.File) { 6566 var n = files.length, text = Array(n), read = 0; 6567 var markAsReadAndPasteIfAllFilesAreRead = function () { 6568 if (++read == n) { 6569 operation(cm, function () { 6570 pos = clipPos(cm.doc, pos); 6571 var change = {from: pos, to: pos, 6572 text: cm.doc.splitLines( 6573 text.filter(function (t) { return t != null; }).join(cm.doc.lineSeparator())), 6574 origin: "paste"}; 6575 makeChange(cm.doc, change); 6576 setSelectionReplaceHistory(cm.doc, simpleSelection(clipPos(cm.doc, pos), clipPos(cm.doc, changeEnd(change)))); 6577 })(); 6578 } 6579 }; 6580 var readTextFromFile = function (file, i) { 6581 if (cm.options.allowDropFileTypes && 6582 indexOf(cm.options.allowDropFileTypes, file.type) == -1) { 6583 markAsReadAndPasteIfAllFilesAreRead(); 6584 return 6585 } 6586 var reader = new FileReader; 6587 reader.onerror = function () { return markAsReadAndPasteIfAllFilesAreRead(); }; 6588 reader.onload = function () { 6589 var content = reader.result; 6590 if (/[\x00-\x08\x0e-\x1f]{2}/.test(content)) { 6591 markAsReadAndPasteIfAllFilesAreRead(); 6592 return 6593 } 6594 text[i] = content; 6595 markAsReadAndPasteIfAllFilesAreRead(); 6596 }; 6597 reader.readAsText(file); 6598 }; 6599 for (var i = 0; i < files.length; i++) { readTextFromFile(files[i], i); } 6600 } else { // Normal drop 6601 // Don't do a replace if the drop happened inside of the selected text. 6602 if (cm.state.draggingText && cm.doc.sel.contains(pos) > -1) { 6603 cm.state.draggingText(e); 6604 // Ensure the editor is re-focused 6605 setTimeout(function () { return cm.display.input.focus(); }, 20); 6606 return 6607 } 6608 try { 6609 var text$1 = e.dataTransfer.getData("Text"); 6610 if (text$1) { 6611 var selected; 6612 if (cm.state.draggingText && !cm.state.draggingText.copy) 6613 { selected = cm.listSelections(); } 6614 setSelectionNoUndo(cm.doc, simpleSelection(pos, pos)); 6615 if (selected) { for (var i$1 = 0; i$1 < selected.length; ++i$1) 6616 { replaceRange(cm.doc, "", selected[i$1].anchor, selected[i$1].head, "drag"); } } 6617 cm.replaceSelection(text$1, "around", "paste"); 6618 cm.display.input.focus(); 6619 } 6620 } 6621 catch(e$1){} 6622 } 6623 } 6624 6625 function onDragStart(cm, e) { 6626 if (ie && (!cm.state.draggingText || +new Date - lastDrop < 100)) { e_stop(e); return } 6627 if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e)) { return } 6628 6629 e.dataTransfer.setData("Text", cm.getSelection()); 6630 e.dataTransfer.effectAllowed = "copyMove"; 6631 6632 // Use dummy image instead of default browsers image. 6633 // Recent Safari (~6.0.2) have a tendency to segfault when this happens, so we don't do it there. 6634 if (e.dataTransfer.setDragImage && !safari) { 6635 var img = elt("img", null, null, "position: fixed; left: 0; top: 0;"); 6636 img.src = "data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw=="; 6637 if (presto) { 6638 img.width = img.height = 1; 6639 cm.display.wrapper.appendChild(img); 6640 // Force a relayout, or Opera won't use our image for some obscure reason 6641 img._top = img.offsetTop; 6642 } 6643 e.dataTransfer.setDragImage(img, 0, 0); 6644 if (presto) { img.parentNode.removeChild(img); } 6645 } 6646 } 6647 6648 function onDragOver(cm, e) { 6649 var pos = posFromMouse(cm, e); 6650 if (!pos) { return } 6651 var frag = document.createDocumentFragment(); 6652 drawSelectionCursor(cm, pos, frag); 6653 if (!cm.display.dragCursor) { 6654 cm.display.dragCursor = elt("div", null, "CodeMirror-cursors CodeMirror-dragcursors"); 6655 cm.display.lineSpace.insertBefore(cm.display.dragCursor, cm.display.cursorDiv); 6656 } 6657 removeChildrenAndAdd(cm.display.dragCursor, frag); 6658 } 6659 6660 function clearDragCursor(cm) { 6661 if (cm.display.dragCursor) { 6662 cm.display.lineSpace.removeChild(cm.display.dragCursor); 6663 cm.display.dragCursor = null; 6664 } 6665 } 6666 6667 // These must be handled carefully, because naively registering a 6668 // handler for each editor will cause the editors to never be 6669 // garbage collected. 6670 6671 function forEachCodeMirror(f) { 6672 if (!document.getElementsByClassName) { return } 6673 var byClass = document.getElementsByClassName("CodeMirror"), editors = []; 6674 for (var i = 0; i < byClass.length; i++) { 6675 var cm = byClass[i].CodeMirror; 6676 if (cm) { editors.push(cm); } 6677 } 6678 if (editors.length) { editors[0].operation(function () { 6679 for (var i = 0; i < editors.length; i++) { f(editors[i]); } 6680 }); } 6681 } 6682 6683 var globalsRegistered = false; 6684 function ensureGlobalHandlers() { 6685 if (globalsRegistered) { return } 6686 registerGlobalHandlers(); 6687 globalsRegistered = true; 6688 } 6689 function registerGlobalHandlers() { 6690 // When the window resizes, we need to refresh active editors. 6691 var resizeTimer; 6692 on(window, "resize", function () { 6693 if (resizeTimer == null) { resizeTimer = setTimeout(function () { 6694 resizeTimer = null; 6695 forEachCodeMirror(onResize); 6696 }, 100); } 6697 }); 6698 // When the window loses focus, we want to show the editor as blurred 6699 on(window, "blur", function () { return forEachCodeMirror(onBlur); }); 6700 } 6701 // Called when the window resizes 6702 function onResize(cm) { 6703 var d = cm.display; 6704 // Might be a text scaling operation, clear size caches. 6705 d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null; 6706 d.scrollbarsClipped = false; 6707 cm.setSize(); 6708 } 6709 6710 var keyNames = { 6711 3: "Pause", 8: "Backspace", 9: "Tab", 13: "Enter", 16: "Shift", 17: "Ctrl", 18: "Alt", 6712 19: "Pause", 20: "CapsLock", 27: "Esc", 32: "Space", 33: "PageUp", 34: "PageDown", 35: "End", 6713 36: "Home", 37: "Left", 38: "Up", 39: "Right", 40: "Down", 44: "PrintScrn", 45: "Insert", 6714 46: "Delete", 59: ";", 61: "=", 91: "Mod", 92: "Mod", 93: "Mod", 6715 106: "*", 107: "=", 109: "-", 110: ".", 111: "/", 145: "ScrollLock", 6716 173: "-", 186: ";", 187: "=", 188: ",", 189: "-", 190: ".", 191: "/", 192: "`", 219: "[", 220: "\\", 6717 221: "]", 222: "'", 224: "Mod", 63232: "Up", 63233: "Down", 63234: "Left", 63235: "Right", 63272: "Delete", 6718 63273: "Home", 63275: "End", 63276: "PageUp", 63277: "PageDown", 63302: "Insert" 6719 }; 6720 6721 // Number keys 6722 for (var i = 0; i < 10; i++) { keyNames[i + 48] = keyNames[i + 96] = String(i); } 6723 // Alphabetic keys 6724 for (var i$1 = 65; i$1 <= 90; i$1++) { keyNames[i$1] = String.fromCharCode(i$1); } 6725 // Function keys 6726 for (var i$2 = 1; i$2 <= 12; i$2++) { keyNames[i$2 + 111] = keyNames[i$2 + 63235] = "F" + i$2; } 6727 6728 var keyMap = {}; 6729 6730 keyMap.basic = { 6731 "Left": "goCharLeft", "Right": "goCharRight", "Up": "goLineUp", "Down": "goLineDown", 6732 "End": "goLineEnd", "Home": "goLineStartSmart", "PageUp": "goPageUp", "PageDown": "goPageDown", 6733 "Delete": "delCharAfter", "Backspace": "delCharBefore", "Shift-Backspace": "delCharBefore", 6734 "Tab": "defaultTab", "Shift-Tab": "indentAuto", 6735 "Enter": "newlineAndIndent", "Insert": "toggleOverwrite", 6736 "Esc": "singleSelection" 6737 }; 6738 // Note that the save and find-related commands aren't defined by 6739 // default. User code or addons can define them. Unknown commands 6740 // are simply ignored. 6741 keyMap.pcDefault = { 6742 "Ctrl-A": "selectAll", "Ctrl-D": "deleteLine", "Ctrl-Z": "undo", "Shift-Ctrl-Z": "redo", "Ctrl-Y": "redo", 6743 "Ctrl-Home": "goDocStart", "Ctrl-End": "goDocEnd", "Ctrl-Up": "goLineUp", "Ctrl-Down": "goLineDown", 6744 "Ctrl-Left": "goGroupLeft", "Ctrl-Right": "goGroupRight", "Alt-Left": "goLineStart", "Alt-Right": "goLineEnd", 6745 "Ctrl-Backspace": "delGroupBefore", "Ctrl-Delete": "delGroupAfter", "Ctrl-S": "save", "Ctrl-F": "find", 6746 "Ctrl-G": "findNext", "Shift-Ctrl-G": "findPrev", "Shift-Ctrl-F": "replace", "Shift-Ctrl-R": "replaceAll", 6747 "Ctrl-[": "indentLess", "Ctrl-]": "indentMore", 6748 "Ctrl-U": "undoSelection", "Shift-Ctrl-U": "redoSelection", "Alt-U": "redoSelection", 6749 "fallthrough": "basic" 6750 }; 6751 // Very basic readline/emacs-style bindings, which are standard on Mac. 6752 keyMap.emacsy = { 6753 "Ctrl-F": "goCharRight", "Ctrl-B": "goCharLeft", "Ctrl-P": "goLineUp", "Ctrl-N": "goLineDown", 6754 "Ctrl-A": "goLineStart", "Ctrl-E": "goLineEnd", "Ctrl-V": "goPageDown", "Shift-Ctrl-V": "goPageUp", 6755 "Ctrl-D": "delCharAfter", "Ctrl-H": "delCharBefore", "Alt-Backspace": "delWordBefore", "Ctrl-K": "killLine", 6756 "Ctrl-T": "transposeChars", "Ctrl-O": "openLine" 6757 }; 6758 keyMap.macDefault = { 6759 "Cmd-A": "selectAll", "Cmd-D": "deleteLine", "Cmd-Z": "undo", "Shift-Cmd-Z": "redo", "Cmd-Y": "redo", 6760 "Cmd-Home": "goDocStart", "Cmd-Up": "goDocStart", "Cmd-End": "goDocEnd", "Cmd-Down": "goDocEnd", "Alt-Left": "goGroupLeft", 6761 "Alt-Right": "goGroupRight", "Cmd-Left": "goLineLeft", "Cmd-Right": "goLineRight", "Alt-Backspace": "delGroupBefore", 6762 "Ctrl-Alt-Backspace": "delGroupAfter", "Alt-Delete": "delGroupAfter", "Cmd-S": "save", "Cmd-F": "find", 6763 "Cmd-G": "findNext", "Shift-Cmd-G": "findPrev", "Cmd-Alt-F": "replace", "Shift-Cmd-Alt-F": "replaceAll", 6764 "Cmd-[": "indentLess", "Cmd-]": "indentMore", "Cmd-Backspace": "delWrappedLineLeft", "Cmd-Delete": "delWrappedLineRight", 6765 "Cmd-U": "undoSelection", "Shift-Cmd-U": "redoSelection", "Ctrl-Up": "goDocStart", "Ctrl-Down": "goDocEnd", 6766 "fallthrough": ["basic", "emacsy"] 6767 }; 6768 keyMap["default"] = mac ? keyMap.macDefault : keyMap.pcDefault; 6769 6770 // KEYMAP DISPATCH 6771 6772 function normalizeKeyName(name) { 6773 var parts = name.split(/-(?!$)/); 6774 name = parts[parts.length - 1]; 6775 var alt, ctrl, shift, cmd; 6776 for (var i = 0; i < parts.length - 1; i++) { 6777 var mod = parts[i]; 6778 if (/^(cmd|meta|m)$/i.test(mod)) { cmd = true; } 6779 else if (/^a(lt)?$/i.test(mod)) { alt = true; } 6780 else if (/^(c|ctrl|control)$/i.test(mod)) { ctrl = true; } 6781 else if (/^s(hift)?$/i.test(mod)) { shift = true; } 6782 else { throw new Error("Unrecognized modifier name: " + mod) } 6783 } 6784 if (alt) { name = "Alt-" + name; } 6785 if (ctrl) { name = "Ctrl-" + name; } 6786 if (cmd) { name = "Cmd-" + name; } 6787 if (shift) { name = "Shift-" + name; } 6788 return name 6789 } 6790 6791 // This is a kludge to keep keymaps mostly working as raw objects 6792 // (backwards compatibility) while at the same time support features 6793 // like normalization and multi-stroke key bindings. It compiles a 6794 // new normalized keymap, and then updates the old object to reflect 6795 // this. 6796 function normalizeKeyMap(keymap) { 6797 var copy = {}; 6798 for (var keyname in keymap) { if (keymap.hasOwnProperty(keyname)) { 6799 var value = keymap[keyname]; 6800 if (/^(name|fallthrough|(de|at)tach)$/.test(keyname)) { continue } 6801 if (value == "...") { delete keymap[keyname]; continue } 6802 6803 var keys = map(keyname.split(" "), normalizeKeyName); 6804 for (var i = 0; i < keys.length; i++) { 6805 var val = (void 0), name = (void 0); 6806 if (i == keys.length - 1) { 6807 name = keys.join(" "); 6808 val = value; 6809 } else { 6810 name = keys.slice(0, i + 1).join(" "); 6811 val = "..."; 6812 } 6813 var prev = copy[name]; 6814 if (!prev) { copy[name] = val; } 6815 else if (prev != val) { throw new Error("Inconsistent bindings for " + name) } 6816 } 6817 delete keymap[keyname]; 6818 } } 6819 for (var prop in copy) { keymap[prop] = copy[prop]; } 6820 return keymap 6821 } 6822 6823 function lookupKey(key, map, handle, context) { 6824 map = getKeyMap(map); 6825 var found = map.call ? map.call(key, context) : map[key]; 6826 if (found === false) { return "nothing" } 6827 if (found === "...") { return "multi" } 6828 if (found != null && handle(found)) { return "handled" } 6829 6830 if (map.fallthrough) { 6831 if (Object.prototype.toString.call(map.fallthrough) != "[object Array]") 6832 { return lookupKey(key, map.fallthrough, handle, context) } 6833 for (var i = 0; i < map.fallthrough.length; i++) { 6834 var result = lookupKey(key, map.fallthrough[i], handle, context); 6835 if (result) { return result } 6836 } 6837 } 6838 } 6839 6840 // Modifier key presses don't count as 'real' key presses for the 6841 // purpose of keymap fallthrough. 6842 function isModifierKey(value) { 6843 var name = typeof value == "string" ? value : keyNames[value.keyCode]; 6844 return name == "Ctrl" || name == "Alt" || name == "Shift" || name == "Mod" 6845 } 6846 6847 function addModifierNames(name, event, noShift) { 6848 var base = name; 6849 if (event.altKey && base != "Alt") { name = "Alt-" + name; } 6850 if ((flipCtrlCmd ? event.metaKey : event.ctrlKey) && base != "Ctrl") { name = "Ctrl-" + name; } 6851 if ((flipCtrlCmd ? event.ctrlKey : event.metaKey) && base != "Mod") { name = "Cmd-" + name; } 6852 if (!noShift && event.shiftKey && base != "Shift") { name = "Shift-" + name; } 6853 return name 6854 } 6855 6856 // Look up the name of a key as indicated by an event object. 6857 function keyName(event, noShift) { 6858 if (presto && event.keyCode == 34 && event["char"]) { return false } 6859 var name = keyNames[event.keyCode]; 6860 if (name == null || event.altGraphKey) { return false } 6861 // Ctrl-ScrollLock has keyCode 3, same as Ctrl-Pause, 6862 // so we'll use event.code when available (Chrome 48+, FF 38+, Safari 10.1+) 6863 if (event.keyCode == 3 && event.code) { name = event.code; } 6864 return addModifierNames(name, event, noShift) 6865 } 6866 6867 function getKeyMap(val) { 6868 return typeof val == "string" ? keyMap[val] : val 6869 } 6870 6871 // Helper for deleting text near the selection(s), used to implement 6872 // backspace, delete, and similar functionality. 6873 function deleteNearSelection(cm, compute) { 6874 var ranges = cm.doc.sel.ranges, kill = []; 6875 // Build up a set of ranges to kill first, merging overlapping 6876 // ranges. 6877 for (var i = 0; i < ranges.length; i++) { 6878 var toKill = compute(ranges[i]); 6879 while (kill.length && cmp(toKill.from, lst(kill).to) <= 0) { 6880 var replaced = kill.pop(); 6881 if (cmp(replaced.from, toKill.from) < 0) { 6882 toKill.from = replaced.from; 6883 break 6884 } 6885 } 6886 kill.push(toKill); 6887 } 6888 // Next, remove those actual ranges. 6889 runInOp(cm, function () { 6890 for (var i = kill.length - 1; i >= 0; i--) 6891 { replaceRange(cm.doc, "", kill[i].from, kill[i].to, "+delete"); } 6892 ensureCursorVisible(cm); 6893 }); 6894 } 6895 6896 function moveCharLogically(line, ch, dir) { 6897 var target = skipExtendingChars(line.text, ch + dir, dir); 6898 return target < 0 || target > line.text.length ? null : target 6899 } 6900 6901 function moveLogically(line, start, dir) { 6902 var ch = moveCharLogically(line, start.ch, dir); 6903 return ch == null ? null : new Pos(start.line, ch, dir < 0 ? "after" : "before") 6904 } 6905 6906 function endOfLine(visually, cm, lineObj, lineNo, dir) { 6907 if (visually) { 6908 if (cm.doc.direction == "rtl") { dir = -dir; } 6909 var order = getOrder(lineObj, cm.doc.direction); 6910 if (order) { 6911 var part = dir < 0 ? lst(order) : order[0]; 6912 var moveInStorageOrder = (dir < 0) == (part.level == 1); 6913 var sticky = moveInStorageOrder ? "after" : "before"; 6914 var ch; 6915 // With a wrapped rtl chunk (possibly spanning multiple bidi parts), 6916 // it could be that the last bidi part is not on the last visual line, 6917 // since visual lines contain content order-consecutive chunks. 6918 // Thus, in rtl, we are looking for the first (content-order) character 6919 // in the rtl chunk that is on the last line (that is, the same line 6920 // as the last (content-order) character). 6921 if (part.level > 0 || cm.doc.direction == "rtl") { 6922 var prep = prepareMeasureForLine(cm, lineObj); 6923 ch = dir < 0 ? lineObj.text.length - 1 : 0; 6924 var targetTop = measureCharPrepared(cm, prep, ch).top; 6925 ch = findFirst(function (ch) { return measureCharPrepared(cm, prep, ch).top == targetTop; }, (dir < 0) == (part.level == 1) ? part.from : part.to - 1, ch); 6926 if (sticky == "before") { ch = moveCharLogically(lineObj, ch, 1); } 6927 } else { ch = dir < 0 ? part.to : part.from; } 6928 return new Pos(lineNo, ch, sticky) 6929 } 6930 } 6931 return new Pos(lineNo, dir < 0 ? lineObj.text.length : 0, dir < 0 ? "before" : "after") 6932 } 6933 6934 function moveVisually(cm, line, start, dir) { 6935 var bidi = getOrder(line, cm.doc.direction); 6936 if (!bidi) { return moveLogically(line, start, dir) } 6937 if (start.ch >= line.text.length) { 6938 start.ch = line.text.length; 6939 start.sticky = "before"; 6940 } else if (start.ch <= 0) { 6941 start.ch = 0; 6942 start.sticky = "after"; 6943 } 6944 var partPos = getBidiPartAt(bidi, start.ch, start.sticky), part = bidi[partPos]; 6945 if (cm.doc.direction == "ltr" && part.level % 2 == 0 && (dir > 0 ? part.to > start.ch : part.from < start.ch)) { 6946 // Case 1: We move within an ltr part in an ltr editor. Even with wrapped lines, 6947 // nothing interesting happens. 6948 return moveLogically(line, start, dir) 6949 } 6950 6951 var mv = function (pos, dir) { return moveCharLogically(line, pos instanceof Pos ? pos.ch : pos, dir); }; 6952 var prep; 6953 var getWrappedLineExtent = function (ch) { 6954 if (!cm.options.lineWrapping) { return {begin: 0, end: line.text.length} } 6955 prep = prep || prepareMeasureForLine(cm, line); 6956 return wrappedLineExtentChar(cm, line, prep, ch) 6957 }; 6958 var wrappedLineExtent = getWrappedLineExtent(start.sticky == "before" ? mv(start, -1) : start.ch); 6959 6960 if (cm.doc.direction == "rtl" || part.level == 1) { 6961 var moveInStorageOrder = (part.level == 1) == (dir < 0); 6962 var ch = mv(start, moveInStorageOrder ? 1 : -1); 6963 if (ch != null && (!moveInStorageOrder ? ch >= part.from && ch >= wrappedLineExtent.begin : ch <= part.to && ch <= wrappedLineExtent.end)) { 6964 // Case 2: We move within an rtl part or in an rtl editor on the same visual line 6965 var sticky = moveInStorageOrder ? "before" : "after"; 6966 return new Pos(start.line, ch, sticky) 6967 } 6968 } 6969 6970 // Case 3: Could not move within this bidi part in this visual line, so leave 6971 // the current bidi part 6972 6973 var searchInVisualLine = function (partPos, dir, wrappedLineExtent) { 6974 var getRes = function (ch, moveInStorageOrder) { return moveInStorageOrder 6975 ? new Pos(start.line, mv(ch, 1), "before") 6976 : new Pos(start.line, ch, "after"); }; 6977 6978 for (; partPos >= 0 && partPos < bidi.length; partPos += dir) { 6979 var part = bidi[partPos]; 6980 var moveInStorageOrder = (dir > 0) == (part.level != 1); 6981 var ch = moveInStorageOrder ? wrappedLineExtent.begin : mv(wrappedLineExtent.end, -1); 6982 if (part.from <= ch && ch < part.to) { return getRes(ch, moveInStorageOrder) } 6983 ch = moveInStorageOrder ? part.from : mv(part.to, -1); 6984 if (wrappedLineExtent.begin <= ch && ch < wrappedLineExtent.end) { return getRes(ch, moveInStorageOrder) } 6985 } 6986 }; 6987 6988 // Case 3a: Look for other bidi parts on the same visual line 6989 var res = searchInVisualLine(partPos + dir, dir, wrappedLineExtent); 6990 if (res) { return res } 6991 6992 // Case 3b: Look for other bidi parts on the next visual line 6993 var nextCh = dir > 0 ? wrappedLineExtent.end : mv(wrappedLineExtent.begin, -1); 6994 if (nextCh != null && !(dir > 0 && nextCh == line.text.length)) { 6995 res = searchInVisualLine(dir > 0 ? 0 : bidi.length - 1, dir, getWrappedLineExtent(nextCh)); 6996 if (res) { return res } 6997 } 6998 6999 // Case 4: Nowhere to move 7000 return null 7001 } 7002 7003 // Commands are parameter-less actions that can be performed on an 7004 // editor, mostly used for keybindings. 7005 var commands = { 7006 selectAll: selectAll, 7007 singleSelection: function (cm) { return cm.setSelection(cm.getCursor("anchor"), cm.getCursor("head"), sel_dontScroll); }, 7008 killLine: function (cm) { return deleteNearSelection(cm, function (range) { 7009 if (range.empty()) { 7010 var len = getLine(cm.doc, range.head.line).text.length; 7011 if (range.head.ch == len && range.head.line < cm.lastLine()) 7012 { return {from: range.head, to: Pos(range.head.line + 1, 0)} } 7013 else 7014 { return {from: range.head, to: Pos(range.head.line, len)} } 7015 } else { 7016 return {from: range.from(), to: range.to()} 7017 } 7018 }); }, 7019 deleteLine: function (cm) { return deleteNearSelection(cm, function (range) { return ({ 7020 from: Pos(range.from().line, 0), 7021 to: clipPos(cm.doc, Pos(range.to().line + 1, 0)) 7022 }); }); }, 7023 delLineLeft: function (cm) { return deleteNearSelection(cm, function (range) { return ({ 7024 from: Pos(range.from().line, 0), to: range.from() 7025 }); }); }, 7026 delWrappedLineLeft: function (cm) { return deleteNearSelection(cm, function (range) { 7027 var top = cm.charCoords(range.head, "div").top + 5; 7028 var leftPos = cm.coordsChar({left: 0, top: top}, "div"); 7029 return {from: leftPos, to: range.from()} 7030 }); }, 7031 delWrappedLineRight: function (cm) { return deleteNearSelection(cm, function (range) { 7032 var top = cm.charCoords(range.head, "div").top + 5; 7033 var rightPos = cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, "div"); 7034 return {from: range.from(), to: rightPos } 7035 }); }, 7036 undo: function (cm) { return cm.undo(); }, 7037 redo: function (cm) { return cm.redo(); }, 7038 undoSelection: function (cm) { return cm.undoSelection(); }, 7039 redoSelection: function (cm) { return cm.redoSelection(); }, 7040 goDocStart: function (cm) { return cm.extendSelection(Pos(cm.firstLine(), 0)); }, 7041 goDocEnd: function (cm) { return cm.extendSelection(Pos(cm.lastLine())); }, 7042 goLineStart: function (cm) { return cm.extendSelectionsBy(function (range) { return lineStart(cm, range.head.line); }, 7043 {origin: "+move", bias: 1} 7044 ); }, 7045 goLineStartSmart: function (cm) { return cm.extendSelectionsBy(function (range) { return lineStartSmart(cm, range.head); }, 7046 {origin: "+move", bias: 1} 7047 ); }, 7048 goLineEnd: function (cm) { return cm.extendSelectionsBy(function (range) { return lineEnd(cm, range.head.line); }, 7049 {origin: "+move", bias: -1} 7050 ); }, 7051 goLineRight: function (cm) { return cm.extendSelectionsBy(function (range) { 7052 var top = cm.cursorCoords(range.head, "div").top + 5; 7053 return cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, "div") 7054 }, sel_move); }, 7055 goLineLeft: function (cm) { return cm.extendSelectionsBy(function (range) { 7056 var top = cm.cursorCoords(range.head, "div").top + 5; 7057 return cm.coordsChar({left: 0, top: top}, "div") 7058 }, sel_move); }, 7059 goLineLeftSmart: function (cm) { return cm.extendSelectionsBy(function (range) { 7060 var top = cm.cursorCoords(range.head, "div").top + 5; 7061 var pos = cm.coordsChar({left: 0, top: top}, "div"); 7062 if (pos.ch < cm.getLine(pos.line).search(/\S/)) { return lineStartSmart(cm, range.head) } 7063 return pos 7064 }, sel_move); }, 7065 goLineUp: function (cm) { return cm.moveV(-1, "line"); }, 7066 goLineDown: function (cm) { return cm.moveV(1, "line"); }, 7067 goPageUp: function (cm) { return cm.moveV(-1, "page"); }, 7068 goPageDown: function (cm) { return cm.moveV(1, "page"); }, 7069 goCharLeft: function (cm) { return cm.moveH(-1, "char"); }, 7070 goCharRight: function (cm) { return cm.moveH(1, "char"); }, 7071 goColumnLeft: function (cm) { return cm.moveH(-1, "column"); }, 7072 goColumnRight: function (cm) { return cm.moveH(1, "column"); }, 7073 goWordLeft: function (cm) { return cm.moveH(-1, "word"); }, 7074 goGroupRight: function (cm) { return cm.moveH(1, "group"); }, 7075 goGroupLeft: function (cm) { return cm.moveH(-1, "group"); }, 7076 goWordRight: function (cm) { return cm.moveH(1, "word"); }, 7077 delCharBefore: function (cm) { return cm.deleteH(-1, "codepoint"); }, 7078 delCharAfter: function (cm) { return cm.deleteH(1, "char"); }, 7079 delWordBefore: function (cm) { return cm.deleteH(-1, "word"); }, 7080 delWordAfter: function (cm) { return cm.deleteH(1, "word"); }, 7081 delGroupBefore: function (cm) { return cm.deleteH(-1, "group"); }, 7082 delGroupAfter: function (cm) { return cm.deleteH(1, "group"); }, 7083 indentAuto: function (cm) { return cm.indentSelection("smart"); }, 7084 indentMore: function (cm) { return cm.indentSelection("add"); }, 7085 indentLess: function (cm) { return cm.indentSelection("subtract"); }, 7086 insertTab: function (cm) { return cm.replaceSelection("\t"); }, 7087 insertSoftTab: function (cm) { 7088 var spaces = [], ranges = cm.listSelections(), tabSize = cm.options.tabSize; 7089 for (var i = 0; i < ranges.length; i++) { 7090 var pos = ranges[i].from(); 7091 var col = countColumn(cm.getLine(pos.line), pos.ch, tabSize); 7092 spaces.push(spaceStr(tabSize - col % tabSize)); 7093 } 7094 cm.replaceSelections(spaces); 7095 }, 7096 defaultTab: function (cm) { 7097 if (cm.somethingSelected()) { cm.indentSelection("add"); } 7098 else { cm.execCommand("insertTab"); } 7099 }, 7100 // Swap the two chars left and right of each selection's head. 7101 // Move cursor behind the two swapped characters afterwards. 7102 // 7103 // Doesn't consider line feeds a character. 7104 // Doesn't scan more than one line above to find a character. 7105 // Doesn't do anything on an empty line. 7106 // Doesn't do anything with non-empty selections. 7107 transposeChars: function (cm) { return runInOp(cm, function () { 7108 var ranges = cm.listSelections(), newSel = []; 7109 for (var i = 0; i < ranges.length; i++) { 7110 if (!ranges[i].empty()) { continue } 7111 var cur = ranges[i].head, line = getLine(cm.doc, cur.line).text; 7112 if (line) { 7113 if (cur.ch == line.length) { cur = new Pos(cur.line, cur.ch - 1); } 7114 if (cur.ch > 0) { 7115 cur = new Pos(cur.line, cur.ch + 1); 7116 cm.replaceRange(line.charAt(cur.ch - 1) + line.charAt(cur.ch - 2), 7117 Pos(cur.line, cur.ch - 2), cur, "+transpose"); 7118 } else if (cur.line > cm.doc.first) { 7119 var prev = getLine(cm.doc, cur.line - 1).text; 7120 if (prev) { 7121 cur = new Pos(cur.line, 1); 7122 cm.replaceRange(line.charAt(0) + cm.doc.lineSeparator() + 7123 prev.charAt(prev.length - 1), 7124 Pos(cur.line - 1, prev.length - 1), cur, "+transpose"); 7125 } 7126 } 7127 } 7128 newSel.push(new Range(cur, cur)); 7129 } 7130 cm.setSelections(newSel); 7131 }); }, 7132 newlineAndIndent: function (cm) { return runInOp(cm, function () { 7133 var sels = cm.listSelections(); 7134 for (var i = sels.length - 1; i >= 0; i--) 7135 { cm.replaceRange(cm.doc.lineSeparator(), sels[i].anchor, sels[i].head, "+input"); } 7136 sels = cm.listSelections(); 7137 for (var i$1 = 0; i$1 < sels.length; i$1++) 7138 { cm.indentLine(sels[i$1].from().line, null, true); } 7139 ensureCursorVisible(cm); 7140 }); }, 7141 openLine: function (cm) { return cm.replaceSelection("\n", "start"); }, 7142 toggleOverwrite: function (cm) { return cm.toggleOverwrite(); } 7143 }; 7144 7145 7146 function lineStart(cm, lineN) { 7147 var line = getLine(cm.doc, lineN); 7148 var visual = visualLine(line); 7149 if (visual != line) { lineN = lineNo(visual); } 7150 return endOfLine(true, cm, visual, lineN, 1) 7151 } 7152 function lineEnd(cm, lineN) { 7153 var line = getLine(cm.doc, lineN); 7154 var visual = visualLineEnd(line); 7155 if (visual != line) { lineN = lineNo(visual); } 7156 return endOfLine(true, cm, line, lineN, -1) 7157 } 7158 function lineStartSmart(cm, pos) { 7159 var start = lineStart(cm, pos.line); 7160 var line = getLine(cm.doc, start.line); 7161 var order = getOrder(line, cm.doc.direction); 7162 if (!order || order[0].level == 0) { 7163 var firstNonWS = Math.max(start.ch, line.text.search(/\S/)); 7164 var inWS = pos.line == start.line && pos.ch <= firstNonWS && pos.ch; 7165 return Pos(start.line, inWS ? 0 : firstNonWS, start.sticky) 7166 } 7167 return start 7168 } 7169 7170 // Run a handler that was bound to a key. 7171 function doHandleBinding(cm, bound, dropShift) { 7172 if (typeof bound == "string") { 7173 bound = commands[bound]; 7174 if (!bound) { return false } 7175 } 7176 // Ensure previous input has been read, so that the handler sees a 7177 // consistent view of the document 7178 cm.display.input.ensurePolled(); 7179 var prevShift = cm.display.shift, done = false; 7180 try { 7181 if (cm.isReadOnly()) { cm.state.suppressEdits = true; } 7182 if (dropShift) { cm.display.shift = false; } 7183 done = bound(cm) != Pass; 7184 } finally { 7185 cm.display.shift = prevShift; 7186 cm.state.suppressEdits = false; 7187 } 7188 return done 7189 } 7190 7191 function lookupKeyForEditor(cm, name, handle) { 7192 for (var i = 0; i < cm.state.keyMaps.length; i++) { 7193 var result = lookupKey(name, cm.state.keyMaps[i], handle, cm); 7194 if (result) { return result } 7195 } 7196 return (cm.options.extraKeys && lookupKey(name, cm.options.extraKeys, handle, cm)) 7197 || lookupKey(name, cm.options.keyMap, handle, cm) 7198 } 7199 7200 // Note that, despite the name, this function is also used to check 7201 // for bound mouse clicks. 7202 7203 var stopSeq = new Delayed; 7204 7205 function dispatchKey(cm, name, e, handle) { 7206 var seq = cm.state.keySeq; 7207 if (seq) { 7208 if (isModifierKey(name)) { return "handled" } 7209 if (/\'$/.test(name)) 7210 { cm.state.keySeq = null; } 7211 else 7212 { stopSeq.set(50, function () { 7213 if (cm.state.keySeq == seq) { 7214 cm.state.keySeq = null; 7215 cm.display.input.reset(); 7216 } 7217 }); } 7218 if (dispatchKeyInner(cm, seq + " " + name, e, handle)) { return true } 7219 } 7220 return dispatchKeyInner(cm, name, e, handle) 7221 } 7222 7223 function dispatchKeyInner(cm, name, e, handle) { 7224 var result = lookupKeyForEditor(cm, name, handle); 7225 7226 if (result == "multi") 7227 { cm.state.keySeq = name; } 7228 if (result == "handled") 7229 { signalLater(cm, "keyHandled", cm, name, e); } 7230 7231 if (result == "handled" || result == "multi") { 7232 e_preventDefault(e); 7233 restartBlink(cm); 7234 } 7235 7236 return !!result 7237 } 7238 7239 // Handle a key from the keydown event. 7240 function handleKeyBinding(cm, e) { 7241 var name = keyName(e, true); 7242 if (!name) { return false } 7243 7244 if (e.shiftKey && !cm.state.keySeq) { 7245 // First try to resolve full name (including 'Shift-'). Failing 7246 // that, see if there is a cursor-motion command (starting with 7247 // 'go') bound to the keyname without 'Shift-'. 7248 return dispatchKey(cm, "Shift-" + name, e, function (b) { return doHandleBinding(cm, b, true); }) 7249 || dispatchKey(cm, name, e, function (b) { 7250 if (typeof b == "string" ? /^go[A-Z]/.test(b) : b.motion) 7251 { return doHandleBinding(cm, b) } 7252 }) 7253 } else { 7254 return dispatchKey(cm, name, e, function (b) { return doHandleBinding(cm, b); }) 7255 } 7256 } 7257 7258 // Handle a key from the keypress event 7259 function handleCharBinding(cm, e, ch) { 7260 return dispatchKey(cm, "'" + ch + "'", e, function (b) { return doHandleBinding(cm, b, true); }) 7261 } 7262 7263 var lastStoppedKey = null; 7264 function onKeyDown(e) { 7265 var cm = this; 7266 if (e.target && e.target != cm.display.input.getField()) { return } 7267 cm.curOp.focus = activeElt(
vendor: 14,373 bytes, lines 7267-7620
7267doc(cm)); 7268 if (signalDOMEvent(cm, e)) { return } 7269 // IE does strange things with escape. 7270 if (ie && ie_version < 11 && e.keyCode == 27) { e.returnValue = false; } 7271 var code = e.keyCode; 7272 cm.display.shift = code == 16 || e.shiftKey; 7273 var handled = handleKeyBinding(cm, e); 7274 if (presto) { 7275 lastStoppedKey = handled ? code : null; 7276 // Opera has no cut event... we try to at least catch the key combo 7277 if (!handled && code == 88 && !hasCopyEvent && (mac ? e.metaKey : e.ctrlKey)) 7278 { cm.replaceSelection("", null, "cut"); } 7279 } 7280 if (gecko && !mac && !handled && code == 46 && e.shiftKey && !e.ctrlKey && document.execCommand) 7281 { document.execCommand("cut"); } 7282 7283 // Turn mouse into crosshair when Alt is held on Mac. 7284 if (code == 18 && !/\bCodeMirror-crosshair\b/.test(cm.display.lineDiv.className)) 7285 { showCrossHair(cm); } 7286 } 7287 7288 function showCrossHair(cm) { 7289 var lineDiv = cm.display.lineDiv; 7290 addClass(lineDiv, "CodeMirror-crosshair"); 7291 7292 function up(e) { 7293 if (e.keyCode == 18 || !e.altKey) { 7294 rmClass(lineDiv, "CodeMirror-crosshair"); 7295 off(document, "keyup", up); 7296 off(document, "mouseover", up); 7297 } 7298 } 7299 on(document, "keyup", up); 7300 on(document, "mouseover", up); 7301 } 7302 7303 function onKeyUp(e) { 7304 if (e.keyCode == 16) { this.doc.sel.shift = false; } 7305 signalDOMEvent(this, e); 7306 } 7307 7308 function onKeyPress(e) { 7309 var cm = this; 7310 if (e.target && e.target != cm.display.input.getField()) { return } 7311 if (eventInWidget(cm.display, e) || signalDOMEvent(cm, e) || e.ctrlKey && !e.altKey || mac && e.metaKey) { return } 7312 var keyCode = e.keyCode, charCode = e.charCode; 7313 if (presto && keyCode == lastStoppedKey) {lastStoppedKey = null; e_preventDefault(e); return} 7314 if ((presto && (!e.which || e.which < 10)) && handleKeyBinding(cm, e)) { return } 7315 var ch = String.fromCharCode(charCode == null ? keyCode : charCode); 7316 // Some browsers fire keypress events for backspace 7317 if (ch == "\x08") { return } 7318 if (handleCharBinding(cm, e, ch)) { return } 7319 cm.display.input.onKeyPress(e); 7320 } 7321 7322 var DOUBLECLICK_DELAY = 400; 7323 7324 var PastClick = function(time, pos, button) { 7325 this.time = time; 7326 this.pos = pos; 7327 this.button = button; 7328 }; 7329 7330 PastClick.prototype.compare = function (time, pos, button) { 7331 return this.time + DOUBLECLICK_DELAY > time && 7332 cmp(pos, this.pos) == 0 && button == this.button 7333 }; 7334 7335 var lastClick, lastDoubleClick; 7336 function clickRepeat(pos, button) { 7337 var now = +new Date; 7338 if (lastDoubleClick && lastDoubleClick.compare(now, pos, button)) { 7339 lastClick = lastDoubleClick = null; 7340 return "triple" 7341 } else if (lastClick && lastClick.compare(now, pos, button)) { 7342 lastDoubleClick = new PastClick(now, pos, button); 7343 lastClick = null; 7344 return "double" 7345 } else { 7346 lastClick = new PastClick(now, pos, button); 7347 lastDoubleClick = null; 7348 return "single" 7349 } 7350 } 7351 7352 // A mouse down can be a single click, double click, triple click, 7353 // start of selection drag, start of text drag, new cursor 7354 // (ctrl-click), rectangle drag (alt-drag), or xwin 7355 // middle-click-paste. Or it might be a click on something we should 7356 // not interfere with, such as a scrollbar or widget. 7357 function onMouseDown(e) { 7358 var cm = this, display = cm.display; 7359 if (signalDOMEvent(cm, e) || display.activeTouch && display.input.supportsTouch()) { return } 7360 display.input.ensurePolled(); 7361 display.shift = e.shiftKey; 7362 7363 if (eventInWidget(display, e)) { 7364 if (!webkit) { 7365 // Briefly turn off draggability, to allow widgets to do 7366 // normal dragging things. 7367 display.scroller.draggable = false; 7368 setTimeout(function () { return display.scroller.draggable = true; }, 100); 7369 } 7370 return 7371 } 7372 if (clickInGutter(cm, e)) { return } 7373 var pos = posFromMouse(cm, e), button = e_button(e), repeat = pos ? clickRepeat(pos, button) : "single"; 7374 win(cm).focus(); 7375 7376 // #3261: make sure, that we're not starting a second selection 7377 if (button == 1 && cm.state.selectingText) 7378 { cm.state.selectingText(e); } 7379 7380 if (pos && handleMappedButton(cm, button, pos, repeat, e)) { return } 7381 7382 if (button == 1) { 7383 if (pos) { leftButtonDown(cm, pos, repeat, e); } 7384 else if (e_target(e) == display.scroller) { e_preventDefault(e); } 7385 } else if (button == 2) { 7386 if (pos) { extendSelection(cm.doc, pos); } 7387 setTimeout(function () { return display.input.focus(); }, 20); 7388 } else if (button == 3) { 7389 if (captureRightClick) { cm.display.input.onContextMenu(e); } 7390 else { delayBlurEvent(cm); } 7391 } 7392 } 7393 7394 function handleMappedButton(cm, button, pos, repeat, event) { 7395 var name = "Click"; 7396 if (repeat == "double") { name = "Double" + name; } 7397 else if (repeat == "triple") { name = "Triple" + name; } 7398 name = (button == 1 ? "Left" : button == 2 ? "Middle" : "Right") + name; 7399 7400 return dispatchKey(cm, addModifierNames(name, event), event, function (bound) { 7401 if (typeof bound == "string") { bound = commands[bound]; } 7402 if (!bound) { return false } 7403 var done = false; 7404 try { 7405 if (cm.isReadOnly()) { cm.state.suppressEdits = true; } 7406 done = bound(cm, pos) != Pass; 7407 } finally { 7408 cm.state.suppressEdits = false; 7409 } 7410 return done 7411 }) 7412 } 7413 7414 function configureMouse(cm, repeat, event) { 7415 var option = cm.getOption("configureMouse"); 7416 var value = option ? option(cm, repeat, event) : {}; 7417 if (value.unit == null) { 7418 var rect = chromeOS ? event.shiftKey && event.metaKey : event.altKey; 7419 value.unit = rect ? "rectangle" : repeat == "single" ? "char" : repeat == "double" ? "word" : "line"; 7420 } 7421 if (value.extend == null || cm.doc.extend) { value.extend = cm.doc.extend || event.shiftKey; } 7422 if (value.addNew == null) { value.addNew = mac ? event.metaKey : event.ctrlKey; } 7423 if (value.moveOnDrag == null) { value.moveOnDrag = !(mac ? event.altKey : event.ctrlKey); } 7424 return value 7425 } 7426 7427 function leftButtonDown(cm, pos, repeat, event) { 7428 if (ie) { setTimeout(bind(ensureFocus, cm), 0); } 7429 else { cm.curOp.focus = activeElt(doc(cm)); } 7430 7431 var behavior = configureMouse(cm, repeat, event); 7432 7433 var sel = cm.doc.sel, contained; 7434 if (cm.options.dragDrop && dragAndDrop && !cm.isReadOnly() && 7435 repeat == "single" && (contained = sel.contains(pos)) > -1 && 7436 (cmp((contained = sel.ranges[contained]).from(), pos) < 0 || pos.xRel > 0) && 7437 (cmp(contained.to(), pos) > 0 || pos.xRel < 0)) 7438 { leftButtonStartDrag(cm, event, pos, behavior); } 7439 else 7440 { leftButtonSelect(cm, event, pos, behavior); } 7441 } 7442 7443 // Start a text drag. When it ends, see if any dragging actually 7444 // happen, and treat as a click if it didn't. 7445 function leftButtonStartDrag(cm, event, pos, behavior) { 7446 var display = cm.display, moved = false; 7447 var dragEnd = operation(cm, function (e) { 7448 if (webkit) { display.scroller.draggable = false; } 7449 cm.state.draggingText = false; 7450 if (cm.state.delayingBlurEvent) { 7451 if (cm.hasFocus()) { cm.state.delayingBlurEvent = false; } 7452 else { delayBlurEvent(cm); } 7453 } 7454 off(display.wrapper.ownerDocument, "mouseup", dragEnd); 7455 off(display.wrapper.ownerDocument, "mousemove", mouseMove); 7456 off(display.scroller, "dragstart", dragStart); 7457 off(display.scroller, "drop", dragEnd); 7458 if (!moved) { 7459 e_preventDefault(e); 7460 if (!behavior.addNew) 7461 { extendSelection(cm.doc, pos, null, null, behavior.extend); } 7462 // Work around unexplainable focus problem in IE9 (#2127) and Chrome (#3081) 7463 if ((webkit && !safari) || ie && ie_version == 9) 7464 { setTimeout(function () {display.wrapper.ownerDocument.body.focus({preventScroll: true}); display.input.focus();}, 20); } 7465 else 7466 { display.input.focus(); } 7467 } 7468 }); 7469 var mouseMove = function(e2) { 7470 moved = moved || Math.abs(event.clientX - e2.clientX) + Math.abs(event.clientY - e2.clientY) >= 10; 7471 }; 7472 var dragStart = function () { return moved = true; }; 7473 // Let the drag handler handle this. 7474 if (webkit) { display.scroller.draggable = true; } 7475 cm.state.draggingText = dragEnd; 7476 dragEnd.copy = !behavior.moveOnDrag; 7477 on(display.wrapper.ownerDocument, "mouseup", dragEnd); 7478 on(display.wrapper.ownerDocument, "mousemove", mouseMove); 7479 on(display.scroller, "dragstart", dragStart); 7480 on(display.scroller, "drop", dragEnd); 7481 7482 cm.state.delayingBlurEvent = true; 7483 setTimeout(function () { return display.input.focus(); }, 20); 7484 // IE's approach to draggable 7485 if (display.scroller.dragDrop) { display.scroller.dragDrop(); } 7486 } 7487 7488 function rangeForUnit(cm, pos, unit) { 7489 if (unit == "char") { return new Range(pos, pos) } 7490 if (unit == "word") { return cm.findWordAt(pos) } 7491 if (unit == "line") { return new Range(Pos(pos.line, 0), clipPos(cm.doc, Pos(pos.line + 1, 0))) } 7492 var result = unit(cm, pos); 7493 return new Range(result.from, result.to) 7494 } 7495 7496 // Normal selection, as opposed to text dragging. 7497 function leftButtonSelect(cm, event, start, behavior) { 7498 if (ie) { delayBlurEvent(cm); } 7499 var display = cm.display, doc$1 = cm.doc; 7500 e_preventDefault(event); 7501 7502 var ourRange, ourIndex, startSel = doc$1.sel, ranges = startSel.ranges; 7503 if (behavior.addNew && !behavior.extend) { 7504 ourIndex = doc$1.sel.contains(start); 7505 if (ourIndex > -1) 7506 { ourRange = ranges[ourIndex]; } 7507 else 7508 { ourRange = new Range(start, start); } 7509 } else { 7510 ourRange = doc$1.sel.primary(); 7511 ourIndex = doc$1.sel.primIndex; 7512 } 7513 7514 if (behavior.unit == "rectangle") { 7515 if (!behavior.addNew) { ourRange = new Range(start, start); } 7516 start = posFromMouse(cm, event, true, true); 7517 ourIndex = -1; 7518 } else { 7519 var range = rangeForUnit(cm, start, behavior.unit); 7520 if (behavior.extend) 7521 { ourRange = extendRange(ourRange, range.anchor, range.head, behavior.extend); } 7522 else 7523 { ourRange = range; } 7524 } 7525 7526 if (!behavior.addNew) { 7527 ourIndex = 0; 7528 setSelection(doc$1, new Selection([ourRange], 0), sel_mouse); 7529 startSel = doc$1.sel; 7530 } else if (ourIndex == -1) { 7531 ourIndex = ranges.length; 7532 setSelection(doc$1, normalizeSelection(cm, ranges.concat([ourRange]), ourIndex), 7533 {scroll: false, origin: "*mouse"}); 7534 } else if (ranges.length > 1 && ranges[ourIndex].empty() && behavior.unit == "char" && !behavior.extend) { 7535 setSelection(doc$1, normalizeSelection(cm, ranges.slice(0, ourIndex).concat(ranges.slice(ourIndex + 1)), 0), 7536 {scroll: false, origin: "*mouse"}); 7537 startSel = doc$1.sel; 7538 } else { 7539 replaceOneSelection(doc$1, ourIndex, ourRange, sel_mouse); 7540 } 7541 7542 var lastPos = start; 7543 function extendTo(pos) { 7544 if (cmp(lastPos, pos) == 0) { return } 7545 lastPos = pos; 7546 7547 if (behavior.unit == "rectangle") { 7548 var ranges = [], tabSize = cm.options.tabSize; 7549 var startCol = countColumn(getLine(doc$1, start.line).text, start.ch, tabSize); 7550 var posCol = countColumn(getLine(doc$1, pos.line).text, pos.ch, tabSize); 7551 var left = Math.min(startCol, posCol), right = Math.max(startCol, posCol); 7552 for (var line = Math.min(start.line, pos.line), end = Math.min(cm.lastLine(), Math.max(start.line, pos.line)); 7553 line <= end; line++) { 7554 var text = getLine(doc$1, line).text, leftPos = findColumn(text, left, tabSize); 7555 if (left == right) 7556 { ranges.push(new Range(Pos(line, leftPos), Pos(line, leftPos))); } 7557 else if (text.length > leftPos) 7558 { ranges.push(new Range(Pos(line, leftPos), Pos(line, findColumn(text, right, tabSize)))); } 7559 } 7560 if (!ranges.length) { ranges.push(new Range(start, start)); } 7561 setSelection(doc$1, normalizeSelection(cm, startSel.ranges.slice(0, ourIndex).concat(ranges), ourIndex), 7562 {origin: "*mouse", scroll: false}); 7563 cm.scrollIntoView(pos); 7564 } else { 7565 var oldRange = ourRange; 7566 var range = rangeForUnit(cm, pos, behavior.unit); 7567 var anchor = oldRange.anchor, head; 7568 if (cmp(range.anchor, anchor) > 0) { 7569 head = range.head; 7570 anchor = minPos(oldRange.from(), range.anchor); 7571 } else { 7572 head = range.anchor; 7573 anchor = maxPos(oldRange.to(), range.head); 7574 } 7575 var ranges$1 = startSel.ranges.slice(0); 7576 ranges$1[ourIndex] = bidiSimplify(cm, new Range(clipPos(doc$1, anchor), head)); 7577 setSelection(doc$1, normalizeSelection(cm, ranges$1, ourIndex), sel_mouse); 7578 } 7579 } 7580 7581 var editorSize = display.wrapper.getBoundingClientRect(); 7582 // Used to ensure timeout re-tries don't fire when another extend 7583 // happened in the meantime (clearTimeout isn't reliable -- at 7584 // least on Chrome, the timeouts still happen even when cleared, 7585 // if the clear happens after their scheduled firing time). 7586 var counter = 0; 7587 7588 function extend(e) { 7589 var curCount = ++counter; 7590 var cur = posFromMouse(cm, e, true, behavior.unit == "rectangle"); 7591 if (!cur) { return } 7592 if (cmp(cur, lastPos) != 0) { 7593 cm.curOp.focus = activeElt(doc(cm)); 7594 extendTo(cur); 7595 var visible = visibleLines(display, doc$1); 7596 if (cur.line >= visible.to || cur.line < visible.from) 7597 { setTimeout(operation(cm, function () {if (counter == curCount) { extend(e); }}), 150); } 7598 } else { 7599 var outside = e.clientY < editorSize.top ? -20 : e.clientY > editorSize.bottom ? 20 : 0; 7600 if (outside) { setTimeout(operation(cm, function () { 7601 if (counter != curCount) { return } 7602 display.scroller.scrollTop += outside; 7603 extend(e); 7604 }), 50); } 7605 } 7606 } 7607 7608 function done(e) { 7609 cm.state.selectingText = false; 7610 counter = Infinity; 7611 // If e is null or undefined we interpret this as someone trying 7612 // to explicitly cancel the selection rather than the user 7613 // letting go of the mouse button. 7614 if (e) { 7615 e_preventDefault(e); 7616 display.input.focus(); 7617 } 7618 off(display.wrapper.ownerDocument, "mousemove", move); 7619 off(display.wrapper.ownerDocument, "mouseup", up); 7620 doc$1
vendor: 5,827 bytes, lines 7620-7777
7620.history.lastSelOrigin = null; 7621 } 7622 7623 var move = operation(cm, function (e) { 7624 if (e.buttons === 0 || !e_button(e)) { done(e); } 7625 else { extend(e); } 7626 }); 7627 var up = operation(cm, done); 7628 cm.state.selectingText = up; 7629 on(display.wrapper.ownerDocument, "mousemove", move); 7630 on(display.wrapper.ownerDocument, "mouseup", up); 7631 } 7632 7633 // Used when mouse-selecting to adjust the anchor to the proper side 7634 // of a bidi jump depending on the visual position of the head. 7635 function bidiSimplify(cm, range) { 7636 var anchor = range.anchor; 7637 var head = range.head; 7638 var anchorLine = getLine(cm.doc, anchor.line); 7639 if (cmp(anchor, head) == 0 && anchor.sticky == head.sticky) { return range } 7640 var order = getOrder(anchorLine); 7641 if (!order) { return range } 7642 var index = getBidiPartAt(order, anchor.ch, anchor.sticky), part = order[index]; 7643 if (part.from != anchor.ch && part.to != anchor.ch) { return range } 7644 var boundary = index + ((part.from == anchor.ch) == (part.level != 1) ? 0 : 1); 7645 if (boundary == 0 || boundary == order.length) { return range } 7646 7647 // Compute the relative visual position of the head compared to the 7648 // anchor (<0 is to the left, >0 to the right) 7649 var leftSide; 7650 if (head.line != anchor.line) { 7651 leftSide = (head.line - anchor.line) * (cm.doc.direction == "ltr" ? 1 : -1) > 0; 7652 } else { 7653 var headIndex = getBidiPartAt(order, head.ch, head.sticky); 7654 var dir = headIndex - index || (head.ch - anchor.ch) * (part.level == 1 ? -1 : 1); 7655 if (headIndex == boundary - 1 || headIndex == boundary) 7656 { leftSide = dir < 0; } 7657 else 7658 { leftSide = dir > 0; } 7659 } 7660 7661 var usePart = order[boundary + (leftSide ? -1 : 0)]; 7662 var from = leftSide == (usePart.level == 1); 7663 var ch = from ? usePart.from : usePart.to, sticky = from ? "after" : "before"; 7664 return anchor.ch == ch && anchor.sticky == sticky ? range : new Range(new Pos(anchor.line, ch, sticky), head) 7665 } 7666 7667 7668 // Determines whether an event happened in the gutter, and fires the 7669 // handlers for the corresponding event. 7670 function gutterEvent(cm, e, type, prevent) { 7671 var mX, mY; 7672 if (e.touches) { 7673 mX = e.touches[0].clientX; 7674 mY = e.touches[0].clientY; 7675 } else { 7676 try { mX = e.clientX; mY = e.clientY; } 7677 catch(e$1) { return false } 7678 } 7679 if (mX >= Math.floor(cm.display.gutters.getBoundingClientRect().right)) { return false } 7680 if (prevent) { e_preventDefault(e); } 7681 7682 var display = cm.display; 7683 var lineBox = display.lineDiv.getBoundingClientRect(); 7684 7685 if (mY > lineBox.bottom || !hasHandler(cm, type)) { return e_defaultPrevented(e) } 7686 mY -= lineBox.top - display.viewOffset; 7687 7688 for (var i = 0; i < cm.display.gutterSpecs.length; ++i) { 7689 var g = display.gutters.childNodes[i]; 7690 if (g && g.getBoundingClientRect().right >= mX) { 7691 var line = lineAtHeight(cm.doc, mY); 7692 var gutter = cm.display.gutterSpecs[i]; 7693 signal(cm, type, cm, line, gutter.className, e); 7694 return e_defaultPrevented(e) 7695 } 7696 } 7697 } 7698 7699 function clickInGutter(cm, e) { 7700 return gutterEvent(cm, e, "gutterClick", true) 7701 } 7702 7703 // CONTEXT MENU HANDLING 7704 7705 // To make the context menu work, we need to briefly unhide the 7706 // textarea (making it as unobtrusive as possible) to let the 7707 // right-click take effect on it. 7708 function onContextMenu(cm, e) { 7709 if (eventInWidget(cm.display, e) || contextMenuInGutter(cm, e)) { return } 7710 if (signalDOMEvent(cm, e, "contextmenu")) { return } 7711 if (!captureRightClick) { cm.display.input.onContextMenu(e); } 7712 } 7713 7714 function contextMenuInGutter(cm, e) { 7715 if (!hasHandler(cm, "gutterContextMenu")) { return false } 7716 return gutterEvent(cm, e, "gutterContextMenu", false) 7717 } 7718 7719 function themeChanged(cm) { 7720 cm.display.wrapper.className = cm.display.wrapper.className.replace(/\s*cm-s-\S+/g, "") + 7721 cm.options.theme.replace(/(^|\s)\s*/g, " cm-s-"); 7722 clearCaches(cm); 7723 } 7724 7725 var Init = {toString: function(){return "CodeMirror.Init"}}; 7726 7727 var defaults = {}; 7728 var optionHandlers = {}; 7729 7730 function defineOptions(CodeMirror) { 7731 var optionHandlers = CodeMirror.optionHandlers; 7732 7733 function option(name, deflt, handle, notOnInit) { 7734 CodeMirror.defaults[name] = deflt; 7735 if (handle) { optionHandlers[name] = 7736 notOnInit ? function (cm, val, old) {if (old != Init) { handle(cm, val, old); }} : handle; } 7737 } 7738 7739 CodeMirror.defineOption = option; 7740 7741 // Passed to option handlers when there is no old value. 7742 CodeMirror.Init = Init; 7743 7744 // These two are, on init, called from the constructor because they 7745 // have to be initialized before the editor can start at all. 7746 option("value", "", function (cm, val) { return cm.setValue(val); }, true); 7747 option("mode", null, function (cm, val) { 7748 cm.doc.modeOption = val; 7749 loadMode(cm); 7750 }, true); 7751 7752 option("indentUnit", 2, loadMode, true); 7753 option("indentWithTabs", false); 7754 option("smartIndent", true); 7755 option("tabSize", 4, function (cm) { 7756 resetModeState(cm); 7757 clearCaches(cm); 7758 regChange(cm); 7759 }, true); 7760 7761 option("lineSeparator", null, function (cm, val) { 7762 cm.doc.lineSep = val; 7763 if (!val) { return } 7764 var newBreaks = [], lineNo = cm.doc.first; 7765 cm.doc.iter(function (line) { 7766 for (var pos = 0;;) { 7767 var found = line.text.indexOf(val, pos); 7768 if (found == -1) { break } 7769 pos = found + val.length; 7770 newBreaks.push(Pos(lineNo, found)); 7771 } 7772 lineNo++; 7773 }); 7774 for (var i = newBreaks.length - 1; i >= 0; i--) 7775 { replaceRange(cm.doc, val, newBreaks[i], Pos(newBreaks[i].line, newBreaks[i].ch + val.length)); } 7776 }); 7777 option("specialChars", /[\u0000-\u001f\u007f-\u009f\u00ad\u061c\u200b\u200e\u200f\u2028\u2029\u
7777202d\u202e\u2066\u2067\u206
vendor: 18,566 bytes, lines 7777-8220
77779\ufeff\ufff9-\ufffc]/g, function (cm, val, old) { 7778 cm.state.specialChars = new RegExp(val.source + (val.test("\t") ? "" : "|\t"), "g"); 7779 if (old != Init) { cm.refresh(); } 7780 }); 7781 option("specialCharPlaceholder", defaultSpecialCharPlaceholder, function (cm) { return cm.refresh(); }, true); 7782 option("electricChars", true); 7783 option("inputStyle", mobile ? "contenteditable" : "textarea", function () { 7784 throw new Error("inputStyle can not (yet) be changed in a running editor") // FIXME 7785 }, true); 7786 option("spellcheck", false, function (cm, val) { return cm.getInputField().spellcheck = val; }, true); 7787 option("autocorrect", false, function (cm, val) { return cm.getInputField().autocorrect = val; }, true); 7788 option("autocapitalize", false, function (cm, val) { return cm.getInputField().autocapitalize = val; }, true); 7789 option("rtlMoveVisually", !windows); 7790 option("wholeLineUpdateBefore", true); 7791 7792 option("theme", "default", function (cm) { 7793 themeChanged(cm); 7794 updateGutters(cm); 7795 }, true); 7796 option("keyMap", "default", function (cm, val, old) { 7797 var next = getKeyMap(val); 7798 var prev = old != Init && getKeyMap(old); 7799 if (prev && prev.detach) { prev.detach(cm, next); } 7800 if (next.attach) { next.attach(cm, prev || null); } 7801 }); 7802 option("extraKeys", null); 7803 option("configureMouse", null); 7804 7805 option("lineWrapping", false, wrappingChanged, true); 7806 option("gutters", [], function (cm, val) { 7807 cm.display.gutterSpecs = getGutters(val, cm.options.lineNumbers); 7808 updateGutters(cm); 7809 }, true); 7810 option("fixedGutter", true, function (cm, val) { 7811 cm.display.gutters.style.left = val ? compensateForHScroll(cm.display) + "px" : "0"; 7812 cm.refresh(); 7813 }, true); 7814 option("coverGutterNextToScrollbar", false, function (cm) { return updateScrollbars(cm); }, true); 7815 option("scrollbarStyle", "native", function (cm) { 7816 initScrollbars(cm); 7817 updateScrollbars(cm); 7818 cm.display.scrollbars.setScrollTop(cm.doc.scrollTop); 7819 cm.display.scrollbars.setScrollLeft(cm.doc.scrollLeft); 7820 }, true); 7821 option("lineNumbers", false, function (cm, val) { 7822 cm.display.gutterSpecs = getGutters(cm.options.gutters, val); 7823 updateGutters(cm); 7824 }, true); 7825 option("firstLineNumber", 1, updateGutters, true); 7826 option("lineNumberFormatter", function (integer) { return integer; }, updateGutters, true); 7827 option("showCursorWhenSelecting", false, updateSelection, true); 7828 7829 option("resetSelectionOnContextMenu", true); 7830 option("lineWiseCopyCut", true); 7831 option("pasteLinesPerSelection", true); 7832 option("selectionsMayTouch", false); 7833 7834 option("readOnly", false, function (cm, val) { 7835 if (val == "nocursor") { 7836 onBlur(cm); 7837 cm.display.input.blur(); 7838 } 7839 cm.display.input.readOnlyChanged(val); 7840 }); 7841 7842 option("screenReaderLabel", null, function (cm, val) { 7843 val = (val === '') ? null : val; 7844 cm.display.input.screenReaderLabelChanged(val); 7845 }); 7846 7847 option("disableInput", false, function (cm, val) {if (!val) { cm.display.input.reset(); }}, true); 7848 option("dragDrop", true, dragDropChanged); 7849 option("allowDropFileTypes", null); 7850 7851 option("cursorBlinkRate", 530); 7852 option("cursorScrollMargin", 0); 7853 option("cursorHeight", 1, updateSelection, true); 7854 option("singleCursorHeightPerLine", true, updateSelection, true); 7855 option("workTime", 100); 7856 option("workDelay", 100); 7857 option("flattenSpans", true, resetModeState, true); 7858 option("addModeClass", false, resetModeState, true); 7859 option("pollInterval", 100); 7860 option("undoDepth", 200, function (cm, val) { return cm.doc.history.undoDepth = val; }); 7861 option("historyEventDelay", 1250); 7862 option("viewportMargin", 10, function (cm) { return cm.refresh(); }, true); 7863 option("maxHighlightLength", 10000, resetModeState, true); 7864 option("moveInputWithCursor", true, function (cm, val) { 7865 if (!val) { cm.display.input.resetPosition(); } 7866 }); 7867 7868 option("tabindex", null, function (cm, val) { return cm.display.input.getField().tabIndex = val || ""; }); 7869 option("autofocus", null); 7870 option("direction", "ltr", function (cm, val) { return cm.doc.setDirection(val); }, true); 7871 option("phrases", null); 7872 } 7873 7874 function dragDropChanged(cm, value, old) { 7875 var wasOn = old && old != Init; 7876 if (!value != !wasOn) { 7877 var funcs = cm.display.dragFunctions; 7878 var toggle = value ? on : off; 7879 toggle(cm.display.scroller, "dragstart", funcs.start); 7880 toggle(cm.display.scroller, "dragenter", funcs.enter); 7881 toggle(cm.display.scroller, "dragover", funcs.over); 7882 toggle(cm.display.scroller, "dragleave", funcs.leave); 7883 toggle(cm.display.scroller, "drop", funcs.drop); 7884 } 7885 } 7886 7887 function wrappingChanged(cm) { 7888 if (cm.options.lineWrapping) { 7889 addClass(cm.display.wrapper, "CodeMirror-wrap"); 7890 cm.display.sizer.style.minWidth = ""; 7891 cm.display.sizerWidth = null; 7892 } else { 7893 rmClass(cm.display.wrapper, "CodeMirror-wrap"); 7894 findMaxLine(cm); 7895 } 7896 estimateLineHeights(cm); 7897 regChange(cm); 7898 clearCaches(cm); 7899 setTimeout(function () { return updateScrollbars(cm); }, 100); 7900 } 7901 7902 // A CodeMirror instance represents an editor. This is the object 7903 // that user code is usually dealing with. 7904 7905 function CodeMirror(place, options) { 7906 var this$1 = this; 7907 7908 if (!(this instanceof CodeMirror)) { return new CodeMirror(place, options) } 7909 7910 this.options = options = options ? copyObj(options) : {}; 7911 // Determine effective options based on given values and defaults. 7912 copyObj(defaults, options, false); 7913 7914 var doc = options.value; 7915 if (typeof doc == "string") { doc = new Doc(doc, options.mode, null, options.lineSeparator, options.direction); } 7916 else if (options.mode) { doc.modeOption = options.mode; } 7917 this.doc = doc; 7918 7919 var input = new CodeMirror.inputStyles[options.inputStyle](this); 7920 var display = this.display = new Display(place, doc, input, options); 7921 display.wrapper.CodeMirror = this; 7922 themeChanged(this); 7923 if (options.lineWrapping) 7924 { this.display.wrapper.className += " CodeMirror-wrap"; } 7925 initScrollbars(this); 7926 7927 this.state = { 7928 keyMaps: [], // stores maps added by addKeyMap 7929 overlays: [], // highlighting overlays, as added by addOverlay 7930 modeGen: 0, // bumped when mode/overlay changes, used to invalidate highlighting info 7931 overwrite: false, 7932 delayingBlurEvent: false, 7933 focused: false, 7934 suppressEdits: false, // used to disable editing during key handlers when in readOnly mode 7935 pasteIncoming: -1, cutIncoming: -1, // help recognize paste/cut edits in input.poll 7936 selectingText: false, 7937 draggingText: false, 7938 highlight: new Delayed(), // stores highlight worker timeout 7939 keySeq: null, // Unfinished key sequence 7940 specialChars: null 7941 }; 7942 7943 if (options.autofocus && !mobile) { display.input.focus(); } 7944 7945 // Override magic textarea content restore that IE sometimes does 7946 // on our hidden textarea on reload 7947 if (ie && ie_version < 11) { setTimeout(function () { return this$1.display.input.reset(true); }, 20); } 7948 7949 registerEventHandlers(this); 7950 ensureGlobalHandlers(); 7951 7952 startOperation(this); 7953 this.curOp.forceUpdate = true; 7954 attachDoc(this, doc); 7955 7956 if ((options.autofocus && !mobile) || this.hasFocus()) 7957 { setTimeout(function () { 7958 if (this$1.hasFocus() && !this$1.state.focused) { onFocus(this$1); } 7959 }, 20); } 7960 else 7961 { onBlur(this); } 7962 7963 for (var opt in optionHandlers) { if (optionHandlers.hasOwnProperty(opt)) 7964 { optionHandlers[opt](this, options[opt], Init); } } 7965 maybeUpdateLineNumberWidth(this); 7966 if (options.finishInit) { options.finishInit(this); } 7967 for (var i = 0; i < initHooks.length; ++i) { initHooks[i](this); } 7968 endOperation(this); 7969 // Suppress optimizelegibility in Webkit, since it breaks text 7970 // measuring on line wrapping boundaries. 7971 if (webkit && options.lineWrapping && 7972 getComputedStyle(display.lineDiv).textRendering == "optimizelegibility") 7973 { display.lineDiv.style.textRendering = "auto"; } 7974 } 7975 7976 // The default configuration options. 7977 CodeMirror.defaults = defaults; 7978 // Functions to run when options are changed. 7979 CodeMirror.optionHandlers = optionHandlers; 7980 7981 // Attach the necessary event handlers when initializing the editor 7982 function registerEventHandlers(cm) { 7983 var d = cm.display; 7984 on(d.scroller, "mousedown", operation(cm, onMouseDown)); 7985 // Older IE's will not fire a second mousedown for a double click 7986 if (ie && ie_version < 11) 7987 { on(d.scroller, "dblclick", operation(cm, function (e) { 7988 if (signalDOMEvent(cm, e)) { return } 7989 var pos = posFromMouse(cm, e); 7990 if (!pos || clickInGutter(cm, e) || eventInWidget(cm.display, e)) { return } 7991 e_preventDefault(e); 7992 var word = cm.findWordAt(pos); 7993 extendSelection(cm.doc, word.anchor, word.head); 7994 })); } 7995 else 7996 { on(d.scroller, "dblclick", function (e) { return signalDOMEvent(cm, e) || e_preventDefault(e); }); } 7997 // Some browsers fire contextmenu *after* opening the menu, at 7998 // which point we can't mess with it anymore. Context menu is 7999 // handled in onMouseDown for these browsers. 8000 on(d.scroller, "contextmenu", function (e) { return onContextMenu(cm, e); }); 8001 on(d.input.getField(), "contextmenu", function (e) { 8002 if (!d.scroller.contains(e.target)) { onContextMenu(cm, e); } 8003 }); 8004 8005 // Used to suppress mouse event handling when a touch happens 8006 var touchFinished, prevTouch = {end: 0}; 8007 function finishTouch() { 8008 if (d.activeTouch) { 8009 touchFinished = setTimeout(function () { return d.activeTouch = null; }, 1000); 8010 prevTouch = d.activeTouch; 8011 prevTouch.end = +new Date; 8012 } 8013 } 8014 function isMouseLikeTouchEvent(e) { 8015 if (e.touches.length != 1) { return false } 8016 var touch = e.touches[0]; 8017 return touch.radiusX <= 1 && touch.radiusY <= 1 8018 } 8019 function farAway(touch, other) { 8020 if (other.left == null) { return true } 8021 var dx = other.left - touch.left, dy = other.top - touch.top; 8022 return dx * dx + dy * dy > 20 * 20 8023 } 8024 on(d.scroller, "touchstart", function (e) { 8025 if (!signalDOMEvent(cm, e) && !isMouseLikeTouchEvent(e) && !clickInGutter(cm, e)) { 8026 d.input.ensurePolled(); 8027 clearTimeout(touchFinished); 8028 var now = +new Date; 8029 d.activeTouch = {start: now, moved: false, 8030 prev: now - prevTouch.end <= 300 ? prevTouch : null}; 8031 if (e.touches.length == 1) { 8032 d.activeTouch.left = e.touches[0].pageX; 8033 d.activeTouch.top = e.touches[0].pageY; 8034 } 8035 } 8036 }); 8037 on(d.scroller, "touchmove", function () { 8038 if (d.activeTouch) { d.activeTouch.moved = true; } 8039 }); 8040 on(d.scroller, "touchend", function (e) { 8041 var touch = d.activeTouch; 8042 if (touch && !eventInWidget(d, e) && touch.left != null && 8043 !touch.moved && new Date - touch.start < 300) { 8044 var pos = cm.coordsChar(d.activeTouch, "page"), range; 8045 if (!touch.prev || farAway(touch, touch.prev)) // Single tap 8046 { range = new Range(pos, pos); } 8047 else if (!touch.prev.prev || farAway(touch, touch.prev.prev)) // Double tap 8048 { range = cm.findWordAt(pos); } 8049 else // Triple tap 8050 { range = new Range(Pos(pos.line, 0), clipPos(cm.doc, Pos(pos.line + 1, 0))); } 8051 cm.setSelection(range.anchor, range.head); 8052 cm.focus(); 8053 e_preventDefault(e); 8054 } 8055 finishTouch(); 8056 }); 8057 on(d.scroller, "touchcancel", finishTouch); 8058 8059 // Sync scrolling between fake scrollbars and real scrollable 8060 // area, ensure viewport is updated when scrolling. 8061 on(d.scroller, "scroll", function () { 8062 if (d.scroller.clientHeight) { 8063 updateScrollTop(cm, d.scroller.scrollTop); 8064 setScrollLeft(cm, d.scroller.scrollLeft, true); 8065 signal(cm, "scroll", cm); 8066 } 8067 }); 8068 8069 // Listen to wheel events in order to try and update the viewport on time. 8070 on(d.scroller, "mousewheel", function (e) { return onScrollWheel(cm, e); }); 8071 on(d.scroller, "DOMMouseScroll", function (e) { return onScrollWheel(cm, e); }); 8072 8073 // Prevent wrapper from ever scrolling 8074 on(d.wrapper, "scroll", function () { return d.wrapper.scrollTop = d.wrapper.scrollLeft = 0; }); 8075 8076 d.dragFunctions = { 8077 enter: function (e) {if (!signalDOMEvent(cm, e)) { e_stop(e); }}, 8078 over: function (e) {if (!signalDOMEvent(cm, e)) { onDragOver(cm, e); e_stop(e); }}, 8079 start: function (e) { return onDragStart(cm, e); }, 8080 drop: operation(cm, onDrop), 8081 leave: function (e) {if (!signalDOMEvent(cm, e)) { clearDragCursor(cm); }} 8082 }; 8083 8084 var inp = d.input.getField(); 8085 on(inp, "keyup", function (e) { return onKeyUp.call(cm, e); }); 8086 on(inp, "keydown", operation(cm, onKeyDown)); 8087 on(inp, "keypress", operation(cm, onKeyPress)); 8088 on(inp, "focus", function (e) { return onFocus(cm, e); }); 8089 on(inp, "blur", function (e) { return onBlur(cm, e); }); 8090 } 8091 8092 var initHooks = []; 8093 CodeMirror.defineInitHook = function (f) { return initHooks.push(f); }; 8094 8095 // Indent the given line. The how parameter can be "smart", 8096 // "add"/null, "subtract", or "prev". When aggressive is false 8097 // (typically set to true for forced single-line indents), empty 8098 // lines are not indented, and places where the mode returns Pass 8099 // are left alone. 8100 function indentLine(cm, n, how, aggressive) { 8101 var doc = cm.doc, state; 8102 if (how == null) { how = "add"; } 8103 if (how == "smart") { 8104 // Fall back to "prev" when the mode doesn't have an indentation 8105 // method. 8106 if (!doc.mode.indent) { how = "prev"; } 8107 else { state = getContextBefore(cm, n).state; } 8108 } 8109 8110 var tabSize = cm.options.tabSize; 8111 var line = getLine(doc, n), curSpace = countColumn(line.text, null, tabSize); 8112 if (line.stateAfter) { line.stateAfter = null; } 8113 var curSpaceString = line.text.match(/^\s*/)[0], indentation; 8114 if (!aggressive && !/\S/.test(line.text)) { 8115 indentation = 0; 8116 how = "not"; 8117 } else if (how == "smart") { 8118 indentation = doc.mode.indent(state, line.text.slice(curSpaceString.length), line.text); 8119 if (indentation == Pass || indentation > 150) { 8120 if (!aggressive) { return } 8121 how = "prev"; 8122 } 8123 } 8124 if (how == "prev") { 8125 if (n > doc.first) { indentation = countColumn(getLine(doc, n-1).text, null, tabSize); } 8126 else { indentation = 0; } 8127 } else if (how == "add") { 8128 indentation = curSpace + cm.options.indentUnit; 8129 } else if (how == "subtract") { 8130 indentation = curSpace - cm.options.indentUnit; 8131 } else if (typeof how == "number") { 8132 indentation = curSpace + how; 8133 } 8134 indentation = Math.max(0, indentation); 8135 8136 var indentString = "", pos = 0; 8137 if (cm.options.indentWithTabs) 8138 { for (var i = Math.floor(indentation / tabSize); i; --i) {pos += tabSize; indentString += "\t";} } 8139 if (pos < indentation) { indentString += spaceStr(indentation - pos); } 8140 8141 if (indentString != curSpaceString) { 8142 replaceRange(doc, indentString, Pos(n, 0), Pos(n, curSpaceString.length), "+input"); 8143 line.stateAfter = null; 8144 return true 8145 } else { 8146 // Ensure that, if the cursor was in the whitespace at the start 8147 // of the line, it is moved to the end of that space. 8148 for (var i$1 = 0; i$1 < doc.sel.ranges.length; i$1++) { 8149 var range = doc.sel.ranges[i$1]; 8150 if (range.head.line == n && range.head.ch < curSpaceString.length) { 8151 var pos$1 = Pos(n, curSpaceString.length); 8152 replaceOneSelection(doc, i$1, new Range(pos$1, pos$1)); 8153 break 8154 } 8155 } 8156 } 8157 } 8158 8159 // This will be set to a {lineWise: bool, text: [string]} object, so 8160 // that, when pasting, we know what kind of selections the copied 8161 // text was made out of. 8162 var lastCopied = null; 8163 8164 function setLastCopied(newLastCopied) { 8165 lastCopied = newLastCopied; 8166 } 8167 8168 function applyTextInput(cm, inserted, deleted, sel, origin) { 8169 var doc = cm.doc; 8170 cm.display.shift = false; 8171 if (!sel) { sel = doc.sel; } 8172 8173 var recent = +new Date - 200; 8174 var paste = origin == "paste" || cm.state.pasteIncoming > recent; 8175 var textLines = splitLinesAuto(inserted), multiPaste = null; 8176 // When pasting N lines into N selections, insert one line per selection 8177 if (paste && sel.ranges.length > 1) { 8178 if (lastCopied && lastCopied.text.join("\n") == inserted) { 8179 if (sel.ranges.length % lastCopied.text.length == 0) { 8180 multiPaste = []; 8181 for (var i = 0; i < lastCopied.text.length; i++) 8182 { multiPaste.push(doc.splitLines(lastCopied.text[i])); } 8183 } 8184 } else if (textLines.length == sel.ranges.length && cm.options.pasteLinesPerSelection) { 8185 multiPaste = map(textLines, function (l) { return [l]; }); 8186 } 8187 } 8188 8189 var updateInput = cm.curOp.updateInput; 8190 // Normal behavior is to insert the new text into every selection 8191 for (var i$1 = sel.ranges.length - 1; i$1 >= 0; i$1--) { 8192 var range = sel.ranges[i$1]; 8193 var from = range.from(), to = range.to(); 8194 if (range.empty()) { 8195 if (deleted && deleted > 0) // Handle deletion 8196 { from = Pos(from.line, from.ch - deleted); } 8197 else if (cm.state.overwrite && !paste) // Handle overwrite 8198 { to = Pos(to.line, Math.min(getLine(doc, to.line).text.length, to.ch + lst(textLines).length)); } 8199 else if (paste && lastCopied && lastCopied.lineWise && lastCopied.text.join("\n") == textLines.join("\n")) 8200 { from = to = Pos(from.line, 0); } 8201 } 8202 var changeEvent = {from: from, to: to, text: multiPaste ? multiPaste[i$1 % multiPaste.length] : textLines, 8203 origin: origin || (paste ? "paste" : cm.state.cutIncoming > recent ? "cut" : "+input")}; 8204 makeChange(cm.doc, changeEvent); 8205 signalLater(cm, "inputRead", cm, changeEvent); 8206 } 8207 if (inserted && !paste) 8208 { triggerElectric(cm, inserted); } 8209 8210 ensureCursorVisible(cm); 8211 if (cm.curOp.updateInput < 2) { cm.curOp.updateInput = updateInput; } 8212 cm.curOp.typing = true; 8213 cm.state.pasteIncoming = cm.state.cutIncoming = -1; 8214 } 8215 8216 function handlePaste(e, cm) { 8217 var pasted = e.clipboardData && e.clipboardData.getData("Text"); 8218 if (pasted) { 8219 e.preventDefault(); 8220 if (!cm.isReadOnly() && !cm.options.disableInput
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8220 && cm.hasFocus()) 8221 { runInOp(cm, function () { return applyTextInput(cm, pasted, 0, null, "paste"); }); } 8222 return true 8223 } 8224 } 8225 8226 function triggerElectric(cm, inserted) { 8227 // When an 'electric' character is inserted, immediately trigger a reindent 8228 if (!cm.options.electricChars || !cm.options.smartIndent) { return } 8229 var sel = cm.doc.sel; 8230 8231 for (var i = sel.ranges.length - 1; i >= 0; i--) { 8232 var range = sel.ranges[i]; 8233 if (range.head.ch > 100 || (i && sel.ranges[i - 1].head.line == range.head.line)) { continue } 8234 var mode = cm.getModeAt(range.head); 8235 var indented = false; 8236 if (mode.electricChars) { 8237 for (var j = 0; j < mode.electricChars.length; j++) 8238 { if (inserted.indexOf(mode.electricChars.charAt(j)) > -1) { 8239 indented = indentLine(cm, range.head.line, "smart"); 8240 break 8241 } } 8242 } else if (mode.electricInput) { 8243 if (mode.electricInput.test(getLine(cm.doc, range.head.line).text.slice(0, range.head.ch))) 8244 { indented = indentLine(cm, range.head.line, "smart"); } 8245 } 8246 if (indented) { signalLater(cm, "electricInput", cm, range.head.line); } 8247 } 8248 } 8249 8250 function copyableRanges(cm) { 8251 var text = [], ranges = []; 8252 for (var i = 0; i < cm.doc.sel.ranges.length; i++) { 8253 var line = cm.doc.sel.ranges[i].head.line; 8254 var lineRange = {anchor: Pos(line, 0), head: Pos(line + 1, 0)}; 8255 ranges.push(lineRange); 8256 text.push(cm.getRange(lineRange.anchor, lineRange.head)); 8257 } 8258 return {text: text, ranges: ranges} 8259 } 8260 8261 function disableBrowserMagic(field, spellcheck, autocorrect, autocapitalize) { 8262 field.setAttribute("autocorrect", autocorrect ? "on" : "off"); 8263 field.setAttribute("autocapitalize", autocapitalize ? "on" : "off"); 8264 field.setAttribute("spellcheck", !!spellcheck); 8265 } 8266 8267 function hiddenTextarea() { 8268 var te = elt("textarea", null, null, "position: absolute; bottom: -1em; padding: 0; width: 1px; height: 1em; min-height: 1em; outline: none"); 8269 var div = elt("div", [te], null, "overflow: hidden; position: relative; width: 3px; height: 0px;"); 8270 // The textarea is kept positioned near the cursor to prevent the 8271 // fact that it'll be scrolled into view on input from scrolling 8272 // our fake cursor out of view. On webkit, when wrap=off, paste is 8273 // very slow. So make the area wide instead. 8274 if (webkit) { te.style.width = "1000px"; } 8275 else { te.setAttribute("wrap", "off"); } 8276 // If border: 0; -- iOS fails to open keyboard (issue #1287) 8277 if (ios) { te.style.border = "1px solid black"; } 8278 return div 8279 } 8280 8281 // The publicly visible API. Note that methodOp(f) means 8282 // 'wrap f in an operation, performed on its `this` parameter'. 8283 8284 // This is not the complete set of editor methods. Most of the 8285 // methods defined on the Doc type are also injected into 8286 // CodeMirror.prototype, for backwards compatibility and 8287 // convenience. 8288 8289 function addEditorMethods(CodeMirror) { 8290 var optionHandlers = CodeMirror.optionHandlers; 8291 8292 var helpers = CodeMirror.helpers = {}; 8293 8294 CodeMirror.prototype = { 8295 constructor: CodeMirror, 8296 focus: function(){win(this)
vendor: 13,537 bytes, lines 8296-8620
8296.focus(); this.display.input.focus();}, 8297 8298 setOption: function(option, value) { 8299 var options = this.options, old = options[option]; 8300 if (options[option] == value && option != "mode") { return } 8301 options[option] = value; 8302 if (optionHandlers.hasOwnProperty(option)) 8303 { operation(this, optionHandlers[option])(this, value, old); } 8304 signal(this, "optionChange", this, option); 8305 }, 8306 8307 getOption: function(option) {return this.options[option]}, 8308 getDoc: function() {return this.doc}, 8309 8310 addKeyMap: function(map, bottom) { 8311 this.state.keyMaps[bottom ? "push" : "unshift"](getKeyMap(map)); 8312 }, 8313 removeKeyMap: function(map) { 8314 var maps = this.state.keyMaps; 8315 for (var i = 0; i < maps.length; ++i) 8316 { if (maps[i] == map || maps[i].name == map) { 8317 maps.splice(i, 1); 8318 return true 8319 } } 8320 }, 8321 8322 addOverlay: methodOp(function(spec, options) { 8323 var mode = spec.token ? spec : CodeMirror.getMode(this.options, spec); 8324 if (mode.startState) { throw new Error("Overlays may not be stateful.") } 8325 insertSorted(this.state.overlays, 8326 {mode: mode, modeSpec: spec, opaque: options && options.opaque, 8327 priority: (options && options.priority) || 0}, 8328 function (overlay) { return overlay.priority; }); 8329 this.state.modeGen++; 8330 regChange(this); 8331 }), 8332 removeOverlay: methodOp(function(spec) { 8333 var overlays = this.state.overlays; 8334 for (var i = 0; i < overlays.length; ++i) { 8335 var cur = overlays[i].modeSpec; 8336 if (cur == spec || typeof spec == "string" && cur.name == spec) { 8337 overlays.splice(i, 1); 8338 this.state.modeGen++; 8339 regChange(this); 8340 return 8341 } 8342 } 8343 }), 8344 8345 indentLine: methodOp(function(n, dir, aggressive) { 8346 if (typeof dir != "string" && typeof dir != "number") { 8347 if (dir == null) { dir = this.options.smartIndent ? "smart" : "prev"; } 8348 else { dir = dir ? "add" : "subtract"; } 8349 } 8350 if (isLine(this.doc, n)) { indentLine(this, n, dir, aggressive); } 8351 }), 8352 indentSelection: methodOp(function(how) { 8353 var ranges = this.doc.sel.ranges, end = -1; 8354 for (var i = 0; i < ranges.length; i++) { 8355 var range = ranges[i]; 8356 if (!range.empty()) { 8357 var from = range.from(), to = range.to(); 8358 var start = Math.max(end, from.line); 8359 end = Math.min(this.lastLine(), to.line - (to.ch ? 0 : 1)) + 1; 8360 for (var j = start; j < end; ++j) 8361 { indentLine(this, j, how); } 8362 var newRanges = this.doc.sel.ranges; 8363 if (from.ch == 0 && ranges.length == newRanges.length && newRanges[i].from().ch > 0) 8364 { replaceOneSelection(this.doc, i, new Range(from, newRanges[i].to()), sel_dontScroll); } 8365 } else if (range.head.line > end) { 8366 indentLine(this, range.head.line, how, true); 8367 end = range.head.line; 8368 if (i == this.doc.sel.primIndex) { ensureCursorVisible(this); } 8369 } 8370 } 8371 }), 8372 8373 // Fetch the parser token for a given character. Useful for hacks 8374 // that want to inspect the mode state (say, for completion). 8375 getTokenAt: function(pos, precise) { 8376 return takeToken(this, pos, precise) 8377 }, 8378 8379 getLineTokens: function(line, precise) { 8380 return takeToken(this, Pos(line), precise, true) 8381 }, 8382 8383 getTokenTypeAt: function(pos) { 8384 pos = clipPos(this.doc, pos); 8385 var styles = getLineStyles(this, getLine(this.doc, pos.line)); 8386 var before = 0, after = (styles.length - 1) / 2, ch = pos.ch; 8387 var type; 8388 if (ch == 0) { type = styles[2]; } 8389 else { for (;;) { 8390 var mid = (before + after) >> 1; 8391 if ((mid ? styles[mid * 2 - 1] : 0) >= ch) { after = mid; } 8392 else if (styles[mid * 2 + 1] < ch) { before = mid + 1; } 8393 else { type = styles[mid * 2 + 2]; break } 8394 } } 8395 var cut = type ? type.indexOf("overlay ") : -1; 8396 return cut < 0 ? type : cut == 0 ? null : type.slice(0, cut - 1) 8397 }, 8398 8399 getModeAt: function(pos) { 8400 var mode = this.doc.mode; 8401 if (!mode.innerMode) { return mode } 8402 return CodeMirror.innerMode(mode, this.getTokenAt(pos).state).mode 8403 }, 8404 8405 getHelper: function(pos, type) { 8406 return this.getHelpers(pos, type)[0] 8407 }, 8408 8409 getHelpers: function(pos, type) { 8410 var found = []; 8411 if (!helpers.hasOwnProperty(type)) { return found } 8412 var help = helpers[type], mode = this.getModeAt(pos); 8413 if (typeof mode[type] == "string") { 8414 if (help[mode[type]]) { found.push(help[mode[type]]); } 8415 } else if (mode[type]) { 8416 for (var i = 0; i < mode[type].length; i++) { 8417 var val = help[mode[type][i]]; 8418 if (val) { found.push(val); } 8419 } 8420 } else if (mode.helperType && help[mode.helperType]) { 8421 found.push(help[mode.helperType]); 8422 } else if (help[mode.name]) { 8423 found.push(help[mode.name]); 8424 } 8425 for (var i$1 = 0; i$1 < help._global.length; i$1++) { 8426 var cur = help._global[i$1]; 8427 if (cur.pred(mode, this) && indexOf(found, cur.val) == -1) 8428 { found.push(cur.val); } 8429 } 8430 return found 8431 }, 8432 8433 getStateAfter: function(line, precise) { 8434 var doc = this.doc; 8435 line = clipLine(doc, line == null ? doc.first + doc.size - 1: line); 8436 return getContextBefore(this, line + 1, precise).state 8437 }, 8438 8439 cursorCoords: function(start, mode) { 8440 var pos, range = this.doc.sel.primary(); 8441 if (start == null) { pos = range.head; } 8442 else if (typeof start == "object") { pos = clipPos(this.doc, start); } 8443 else { pos = start ? range.from() : range.to(); } 8444 return cursorCoords(this, pos, mode || "page") 8445 }, 8446 8447 charCoords: function(pos, mode) { 8448 return charCoords(this, clipPos(this.doc, pos), mode || "page") 8449 }, 8450 8451 coordsChar: function(coords, mode) { 8452 coords = fromCoordSystem(this, coords, mode || "page"); 8453 return coordsChar(this, coords.left, coords.top) 8454 }, 8455 8456 lineAtHeight: function(height, mode) { 8457 height = fromCoordSystem(this, {top: height, left: 0}, mode || "page").top; 8458 return lineAtHeight(this.doc, height + this.display.viewOffset) 8459 }, 8460 heightAtLine: function(line, mode, includeWidgets) { 8461 var end = false, lineObj; 8462 if (typeof line == "number") { 8463 var last = this.doc.first + this.doc.size - 1; 8464 if (line < this.doc.first) { line = this.doc.first; } 8465 else if (line > last) { line = last; end = true; } 8466 lineObj = getLine(this.doc, line); 8467 } else { 8468 lineObj = line; 8469 } 8470 return intoCoordSystem(this, lineObj, {top: 0, left: 0}, mode || "page", includeWidgets || end).top + 8471 (end ? this.doc.height - heightAtLine(lineObj) : 0) 8472 }, 8473 8474 defaultTextHeight: function() { return textHeight(this.display) }, 8475 defaultCharWidth: function() { return charWidth(this.display) }, 8476 8477 getViewport: function() { return {from: this.display.viewFrom, to: this.display.viewTo}}, 8478 8479 addWidget: function(pos, node, scroll, vert, horiz) { 8480 var display = this.display; 8481 pos = cursorCoords(this, clipPos(this.doc, pos)); 8482 var top = pos.bottom, left = pos.left; 8483 node.style.position = "absolute"; 8484 node.setAttribute("cm-ignore-events", "true"); 8485 this.display.input.setUneditable(node); 8486 display.sizer.appendChild(node); 8487 if (vert == "over") { 8488 top = pos.top; 8489 } else if (vert == "above" || vert == "near") { 8490 var vspace = Math.max(display.wrapper.clientHeight, this.doc.height), 8491 hspace = Math.max(display.sizer.clientWidth, display.lineSpace.clientWidth); 8492 // Default to positioning above (if specified and possible); otherwise default to positioning below 8493 if ((vert == 'above' || pos.bottom + node.offsetHeight > vspace) && pos.top > node.offsetHeight) 8494 { top = pos.top - node.offsetHeight; } 8495 else if (pos.bottom + node.offsetHeight <= vspace) 8496 { top = pos.bottom; } 8497 if (left + node.offsetWidth > hspace) 8498 { left = hspace - node.offsetWidth; } 8499 } 8500 node.style.top = top + "px"; 8501 node.style.left = node.style.right = ""; 8502 if (horiz == "right") { 8503 left = display.sizer.clientWidth - node.offsetWidth; 8504 node.style.right = "0px"; 8505 } else { 8506 if (horiz == "left") { left = 0; } 8507 else if (horiz == "middle") { left = (display.sizer.clientWidth - node.offsetWidth) / 2; } 8508 node.style.left = left + "px"; 8509 } 8510 if (scroll) 8511 { scrollIntoView(this, {left: left, top: top, right: left + node.offsetWidth, bottom: top + node.offsetHeight}); } 8512 }, 8513 8514 triggerOnKeyDown: methodOp(onKeyDown), 8515 triggerOnKeyPress: methodOp(onKeyPress), 8516 triggerOnKeyUp: onKeyUp, 8517 triggerOnMouseDown: methodOp(onMouseDown), 8518 8519 execCommand: function(cmd) { 8520 if (commands.hasOwnProperty(cmd)) 8521 { return commands[cmd].call(null, this) } 8522 }, 8523 8524 triggerElectric: methodOp(function(text) { triggerElectric(this, text); }), 8525 8526 findPosH: function(from, amount, unit, visually) { 8527 var dir = 1; 8528 if (amount < 0) { dir = -1; amount = -amount; } 8529 var cur = clipPos(this.doc, from); 8530 for (var i = 0; i < amount; ++i) { 8531 cur = findPosH(this.doc, cur, dir, unit, visually); 8532 if (cur.hitSide) { break } 8533 } 8534 return cur 8535 }, 8536 8537 moveH: methodOp(function(dir, unit) { 8538 var this$1 = this; 8539 8540 this.extendSelectionsBy(function (range) { 8541 if (this$1.display.shift || this$1.doc.extend || range.empty()) 8542 { return findPosH(this$1.doc, range.head, dir, unit, this$1.options.rtlMoveVisually) } 8543 else 8544 { return dir < 0 ? range.from() : range.to() } 8545 }, sel_move); 8546 }), 8547 8548 deleteH: methodOp(function(dir, unit) { 8549 var sel = this.doc.sel, doc = this.doc; 8550 if (sel.somethingSelected()) 8551 { doc.replaceSelection("", null, "+delete"); } 8552 else 8553 { deleteNearSelection(this, function (range) { 8554 var other = findPosH(doc, range.head, dir, unit, false); 8555 return dir < 0 ? {from: other, to: range.head} : {from: range.head, to: other} 8556 }); } 8557 }), 8558 8559 findPosV: function(from, amount, unit, goalColumn) { 8560 var dir = 1, x = goalColumn; 8561 if (amount < 0) { dir = -1; amount = -amount; } 8562 var cur = clipPos(this.doc, from); 8563 for (var i = 0; i < amount; ++i) { 8564 var coords = cursorCoords(this, cur, "div"); 8565 if (x == null) { x = coords.left; } 8566 else { coords.left = x; } 8567 cur = findPosV(this, coords, dir, unit); 8568 if (cur.hitSide) { break } 8569 } 8570 return cur 8571 }, 8572 8573 moveV: methodOp(function(dir, unit) { 8574 var this$1 = this; 8575 8576 var doc = this.doc, goals = []; 8577 var collapse = !this.display.shift && !doc.extend && doc.sel.somethingSelected(); 8578 doc.extendSelectionsBy(function (range) { 8579 if (collapse) 8580 { return dir < 0 ? range.from() : range.to() } 8581 var headPos = cursorCoords(this$1, range.head, "div"); 8582 if (range.goalColumn != null) { headPos.left = range.goalColumn; } 8583 goals.push(headPos.left); 8584 var pos = findPosV(this$1, headPos, dir, unit); 8585 if (unit == "page" && range == doc.sel.primary()) 8586 { addToScrollTop(this$1, charCoords(this$1, pos, "div").top - headPos.top); } 8587 return pos 8588 }, sel_move); 8589 if (goals.length) { for (var i = 0; i < doc.sel.ranges.length; i++) 8590 { doc.sel.ranges[i].goalColumn = goals[i]; } } 8591 }), 8592 8593 // Find the word at the given position (as returned by coordsChar). 8594 findWordAt: function(pos) { 8595 var doc = this.doc, line = getLine(doc, pos.line).text; 8596 var start = pos.ch, end = pos.ch; 8597 if (line) { 8598 var helper = this.getHelper(pos, "wordChars"); 8599 if ((pos.sticky == "before" || end == line.length) && start) { --start; } else { ++end; } 8600 var startChar = line.charAt(start); 8601 var check = isWordChar(startChar, helper) 8602 ? function (ch) { return isWordChar(ch, helper); } 8603 : /\s/.test(startChar) ? function (ch) { return /\s/.test(ch); } 8604 : function (ch) { return (!/\s/.test(ch) && !isWordChar(ch)); }; 8605 while (start > 0 && check(line.charAt(start - 1))) { --start; } 8606 while (end < line.length && check(line.charAt(end))) { ++end; } 8607 } 8608 return new Range(Pos(pos.line, start), Pos(pos.line, end)) 8609 }, 8610 8611 toggleOverwrite: function(value) { 8612 if (value != null && value == this.state.overwrite) { return } 8613 if (this.state.overwrite = !this.state.overwrite) 8614 { addClass(this.display.cursorDiv, "CodeMirror-overwrite"); } 8615 else 8616 { rmClass(this.display.cursorDiv, "CodeMirror-overwrite"); } 8617 8618 signal(this, "overwriteToggle", this, this.state.overwrite); 8619 }, 8620 hasFocus: function() { return this.display.input.getField() == activeElt(
vendor: 14,952 bytes, lines 8620-9006
8620doc(this)) }, 8621 isReadOnly: function() { return !!(this.options.readOnly || this.doc.cantEdit) }, 8622 8623 scrollTo: methodOp(function (x, y) { scrollToCoords(this, x, y); }), 8624 getScrollInfo: function() { 8625 var scroller = this.display.scroller; 8626 return {left: scroller.scrollLeft, top: scroller.scrollTop, 8627 height: scroller.scrollHeight - scrollGap(this) - this.display.barHeight, 8628 width: scroller.scrollWidth - scrollGap(this) - this.display.barWidth, 8629 clientHeight: displayHeight(this), clientWidth: displayWidth(this)} 8630 }, 8631 8632 scrollIntoView: methodOp(function(range, margin) { 8633 if (range == null) { 8634 range = {from: this.doc.sel.primary().head, to: null}; 8635 if (margin == null) { margin = this.options.cursorScrollMargin; } 8636 } else if (typeof range == "number") { 8637 range = {from: Pos(range, 0), to: null}; 8638 } else if (range.from == null) { 8639 range = {from: range, to: null}; 8640 } 8641 if (!range.to) { range.to = range.from; } 8642 range.margin = margin || 0; 8643 8644 if (range.from.line != null) { 8645 scrollToRange(this, range); 8646 } else { 8647 scrollToCoordsRange(this, range.from, range.to, range.margin); 8648 } 8649 }), 8650 8651 setSize: methodOp(function(width, height) { 8652 var this$1 = this; 8653 8654 var interpret = function (val) { return typeof val == "number" || /^\d+$/.test(String(val)) ? val + "px" : val; }; 8655 if (width != null) { this.display.wrapper.style.width = interpret(width); } 8656 if (height != null) { this.display.wrapper.style.height = interpret(height); } 8657 if (this.options.lineWrapping) { clearLineMeasurementCache(this); } 8658 var lineNo = this.display.viewFrom; 8659 this.doc.iter(lineNo, this.display.viewTo, function (line) { 8660 if (line.widgets) { for (var i = 0; i < line.widgets.length; i++) 8661 { if (line.widgets[i].noHScroll) { regLineChange(this$1, lineNo, "widget"); break } } } 8662 ++lineNo; 8663 }); 8664 this.curOp.forceUpdate = true; 8665 signal(this, "refresh", this); 8666 }), 8667 8668 operation: function(f){return runInOp(this, f)}, 8669 startOperation: function(){return startOperation(this)}, 8670 endOperation: function(){return endOperation(this)}, 8671 8672 refresh: methodOp(function() { 8673 var oldHeight = this.display.cachedTextHeight; 8674 regChange(this); 8675 this.curOp.forceUpdate = true; 8676 clearCaches(this); 8677 scrollToCoords(this, this.doc.scrollLeft, this.doc.scrollTop); 8678 updateGutterSpace(this.display); 8679 if (oldHeight == null || Math.abs(oldHeight - textHeight(this.display)) > .5 || this.options.lineWrapping) 8680 { estimateLineHeights(this); } 8681 signal(this, "refresh", this); 8682 }), 8683 8684 swapDoc: methodOp(function(doc) { 8685 var old = this.doc; 8686 old.cm = null; 8687 // Cancel the current text selection if any (#5821) 8688 if (this.state.selectingText) { this.state.selectingText(); } 8689 attachDoc(this, doc); 8690 clearCaches(this); 8691 this.display.input.reset(); 8692 scrollToCoords(this, doc.scrollLeft, doc.scrollTop); 8693 this.curOp.forceScroll = true; 8694 signalLater(this, "swapDoc", this, old); 8695 return old 8696 }), 8697 8698 phrase: function(phraseText) { 8699 var phrases = this.options.phrases; 8700 return phrases && Object.prototype.hasOwnProperty.call(phrases, phraseText) ? phrases[phraseText] : phraseText 8701 }, 8702 8703 getInputField: function(){return this.display.input.getField()}, 8704 getWrapperElement: function(){return this.display.wrapper}, 8705 getScrollerElement: function(){return this.display.scroller}, 8706 getGutterElement: function(){return this.display.gutters} 8707 }; 8708 eventMixin(CodeMirror); 8709 8710 CodeMirror.registerHelper = function(type, name, value) { 8711 if (!helpers.hasOwnProperty(type)) { helpers[type] = CodeMirror[type] = {_global: []}; } 8712 helpers[type][name] = value; 8713 }; 8714 CodeMirror.registerGlobalHelper = function(type, name, predicate, value) { 8715 CodeMirror.registerHelper(type, name, value); 8716 helpers[type]._global.push({pred: predicate, val: value}); 8717 }; 8718 } 8719 8720 // Used for horizontal relative motion. Dir is -1 or 1 (left or 8721 // right), unit can be "codepoint", "char", "column" (like char, but 8722 // doesn't cross line boundaries), "word" (across next word), or 8723 // "group" (to the start of next group of word or 8724 // non-word-non-whitespace chars). The visually param controls 8725 // whether, in right-to-left text, direction 1 means to move towards 8726 // the next index in the string, or towards the character to the right 8727 // of the current position. The resulting position will have a 8728 // hitSide=true property if it reached the end of the document. 8729 function findPosH(doc, pos, dir, unit, visually) { 8730 var oldPos = pos; 8731 var origDir = dir; 8732 var lineObj = getLine(doc, pos.line); 8733 var lineDir = visually && doc.direction == "rtl" ? -dir : dir; 8734 function findNextLine() { 8735 var l = pos.line + lineDir; 8736 if (l < doc.first || l >= doc.first + doc.size) { return false } 8737 pos = new Pos(l, pos.ch, pos.sticky); 8738 return lineObj = getLine(doc, l) 8739 } 8740 function moveOnce(boundToLine) { 8741 var next; 8742 if (unit == "codepoint") { 8743 var ch = lineObj.text.charCodeAt(pos.ch + (dir > 0 ? 0 : -1)); 8744 if (isNaN(ch)) { 8745 next = null; 8746 } else { 8747 var astral = dir > 0 ? ch >= 0xD800 && ch < 0xDC00 : ch >= 0xDC00 && ch < 0xDFFF; 8748 next = new Pos(pos.line, Math.max(0, Math.min(lineObj.text.length, pos.ch + dir * (astral ? 2 : 1))), -dir); 8749 } 8750 } else if (visually) { 8751 next = moveVisually(doc.cm, lineObj, pos, dir); 8752 } else { 8753 next = moveLogically(lineObj, pos, dir); 8754 } 8755 if (next == null) { 8756 if (!boundToLine && findNextLine()) 8757 { pos = endOfLine(visually, doc.cm, lineObj, pos.line, lineDir); } 8758 else 8759 { return false } 8760 } else { 8761 pos = next; 8762 } 8763 return true 8764 } 8765 8766 if (unit == "char" || unit == "codepoint") { 8767 moveOnce(); 8768 } else if (unit == "column") { 8769 moveOnce(true); 8770 } else if (unit == "word" || unit == "group") { 8771 var sawType = null, group = unit == "group"; 8772 var helper = doc.cm && doc.cm.getHelper(pos, "wordChars"); 8773 for (var first = true;; first = false) { 8774 if (dir < 0 && !moveOnce(!first)) { break } 8775 var cur = lineObj.text.charAt(pos.ch) || "\n"; 8776 var type = isWordChar(cur, helper) ? "w" 8777 : group && cur == "\n" ? "n" 8778 : !group || /\s/.test(cur) ? null 8779 : "p"; 8780 if (group && !first && !type) { type = "s"; } 8781 if (sawType && sawType != type) { 8782 if (dir < 0) {dir = 1; moveOnce(); pos.sticky = "after";} 8783 break 8784 } 8785 8786 if (type) { sawType = type; } 8787 if (dir > 0 && !moveOnce(!first)) { break } 8788 } 8789 } 8790 var result = skipAtomic(doc, pos, oldPos, origDir, true); 8791 if (equalCursorPos(oldPos, result)) { result.hitSide = true; } 8792 return result 8793 } 8794 8795 // For relative vertical movement. Dir may be -1 or 1. Unit can be 8796 // "page" or "line". The resulting position will have a hitSide=true 8797 // property if it reached the end of the document. 8798 function findPosV(cm, pos, dir, unit) { 8799 var doc = cm.doc, x = pos.left, y; 8800 if (unit == "page") { 8801 var pageSize = Math.min(cm.display.wrapper.clientHeight, win(cm).innerHeight || doc(cm).documentElement.clientHeight); 8802 var moveAmount = Math.max(pageSize - .5 * textHeight(cm.display), 3); 8803 y = (dir > 0 ? pos.bottom : pos.top) + dir * moveAmount; 8804 8805 } else if (unit == "line") { 8806 y = dir > 0 ? pos.bottom + 3 : pos.top - 3; 8807 } 8808 var target; 8809 for (;;) { 8810 target = coordsChar(cm, x, y); 8811 if (!target.outside) { break } 8812 if (dir < 0 ? y <= 0 : y >= doc.height) { target.hitSide = true; break } 8813 y += dir * 5; 8814 } 8815 return target 8816 } 8817 8818 // CONTENTEDITABLE INPUT STYLE 8819 8820 var ContentEditableInput = function(cm) { 8821 this.cm = cm; 8822 this.lastAnchorNode = this.lastAnchorOffset = this.lastFocusNode = this.lastFocusOffset = null; 8823 this.polling = new Delayed(); 8824 this.composing = null; 8825 this.gracePeriod = false; 8826 this.readDOMTimeout = null; 8827 }; 8828 8829 ContentEditableInput.prototype.init = function (display) { 8830 var this$1 = this; 8831 8832 var input = this, cm = input.cm; 8833 var div = input.div = display.lineDiv; 8834 div.contentEditable = true; 8835 disableBrowserMagic(div, cm.options.spellcheck, cm.options.autocorrect, cm.options.autocapitalize); 8836 8837 function belongsToInput(e) { 8838 for (var t = e.target; t; t = t.parentNode) { 8839 if (t == div) { return true } 8840 if (/\bCodeMirror-(?:line)?widget\b/.test(t.className)) { break } 8841 } 8842 return false 8843 } 8844 8845 on(div, "paste", function (e) { 8846 if (!belongsToInput(e) || signalDOMEvent(cm, e) || handlePaste(e, cm)) { return } 8847 // IE doesn't fire input events, so we schedule a read for the pasted content in this way 8848 if (ie_version <= 11) { setTimeout(operation(cm, function () { return this$1.updateFromDOM(); }), 20); } 8849 }); 8850 8851 on(div, "compositionstart", function (e) { 8852 this$1.composing = {data: e.data, done: false}; 8853 }); 8854 on(div, "compositionupdate", function (e) { 8855 if (!this$1.composing) { this$1.composing = {data: e.data, done: false}; } 8856 }); 8857 on(div, "compositionend", function (e) { 8858 if (this$1.composing) { 8859 if (e.data != this$1.composing.data) { this$1.readFromDOMSoon(); } 8860 this$1.composing.done = true; 8861 } 8862 }); 8863 8864 on(div, "touchstart", function () { return input.forceCompositionEnd(); }); 8865 8866 on(div, "input", function () { 8867 if (!this$1.composing) { this$1.readFromDOMSoon(); } 8868 }); 8869 8870 function onCopyCut(e) { 8871 if (!belongsToInput(e) || signalDOMEvent(cm, e)) { return } 8872 if (cm.somethingSelected()) { 8873 setLastCopied({lineWise: false, text: cm.getSelections()}); 8874 if (e.type == "cut") { cm.replaceSelection("", null, "cut"); } 8875 } else if (!cm.options.lineWiseCopyCut) { 8876 return 8877 } else { 8878 var ranges = copyableRanges(cm); 8879 setLastCopied({lineWise: true, text: ranges.text}); 8880 if (e.type == "cut") { 8881 cm.operation(function () { 8882 cm.setSelections(ranges.ranges, 0, sel_dontScroll); 8883 cm.replaceSelection("", null, "cut"); 8884 }); 8885 } 8886 } 8887 if (e.clipboardData) { 8888 e.clipboardData.clearData(); 8889 var content = lastCopied.text.join("\n"); 8890 // iOS exposes the clipboard API, but seems to discard content inserted into it 8891 e.clipboardData.setData("Text", content); 8892 if (e.clipboardData.getData("Text") == content) { 8893 e.preventDefault(); 8894 return 8895 } 8896 } 8897 // Old-fashioned briefly-focus-a-textarea hack 8898 var kludge = hiddenTextarea(), te = kludge.firstChild; 8899 disableBrowserMagic(te); 8900 cm.display.lineSpace.insertBefore(kludge, cm.display.lineSpace.firstChild); 8901 te.value = lastCopied.text.join("\n"); 8902 var hadFocus = activeElt(div.ownerDocument); 8903 selectInput(te); 8904 setTimeout(function () { 8905 cm.display.lineSpace.removeChild(kludge); 8906 hadFocus.focus(); 8907 if (hadFocus == div) { input.showPrimarySelection(); } 8908 }, 50); 8909 } 8910 on(div, "copy", onCopyCut); 8911 on(div, "cut", onCopyCut); 8912 }; 8913 8914 ContentEditableInput.prototype.screenReaderLabelChanged = function (label) { 8915 // Label for screenreaders, accessibility 8916 if(label) { 8917 this.div.setAttribute('aria-label', label); 8918 } else { 8919 this.div.removeAttribute('aria-label'); 8920 } 8921 }; 8922 8923 ContentEditableInput.prototype.prepareSelection = function () { 8924 var result = prepareSelection(this.cm, false); 8925 result.focus = activeElt(this.div.ownerDocument) == this.div; 8926 return result 8927 }; 8928 8929 ContentEditableInput.prototype.showSelection = function (info, takeFocus) { 8930 if (!info || !this.cm.display.view.length) { return } 8931 if (info.focus || takeFocus) { this.showPrimarySelection(); } 8932 this.showMultipleSelections(info); 8933 }; 8934 8935 ContentEditableInput.prototype.getSelection = function () { 8936 return this.cm.display.wrapper.ownerDocument.getSelection() 8937 }; 8938 8939 ContentEditableInput.prototype.showPrimarySelection = function () { 8940 var sel = this.getSelection(), cm = this.cm, prim = cm.doc.sel.primary(); 8941 var from = prim.from(), to = prim.to(); 8942 8943 if (cm.display.viewTo == cm.display.viewFrom || from.line >= cm.display.viewTo || to.line < cm.display.viewFrom) { 8944 sel.removeAllRanges(); 8945 return 8946 } 8947 8948 var curAnchor = domToPos(cm, sel.anchorNode, sel.anchorOffset); 8949 var curFocus = domToPos(cm, sel.focusNode, sel.focusOffset); 8950 if (curAnchor && !curAnchor.bad && curFocus && !curFocus.bad && 8951 cmp(minPos(curAnchor, curFocus), from) == 0 && 8952 cmp(maxPos(curAnchor, curFocus), to) == 0) 8953 { return } 8954 8955 var view = cm.display.view; 8956 var start = (from.line >= cm.display.viewFrom && posToDOM(cm, from)) || 8957 {node: view[0].measure.map[2], offset: 0}; 8958 var end = to.line < cm.display.viewTo && posToDOM(cm, to); 8959 if (!end) { 8960 var measure = view[view.length - 1].measure; 8961 var map = measure.maps ? measure.maps[measure.maps.length - 1] : measure.map; 8962 end = {node: map[map.length - 1], offset: map[map.length - 2] - map[map.length - 3]}; 8963 } 8964 8965 if (!start || !end) { 8966 sel.removeAllRanges(); 8967 return 8968 } 8969 8970 var old = sel.rangeCount && sel.getRangeAt(0), rng; 8971 try { rng = range(start.node, start.offset, end.offset, end.node); } 8972 catch(e) {} // Our model of the DOM might be outdated, in which case the range we try to set can be impossible 8973 if (rng) { 8974 if (!gecko && cm.state.focused) { 8975 sel.collapse(start.node, start.offset); 8976 if (!rng.collapsed) { 8977 sel.removeAllRanges(); 8978 sel.addRange(rng); 8979 } 8980 } else { 8981 sel.removeAllRanges(); 8982 sel.addRange(rng); 8983 } 8984 if (old && sel.anchorNode == null) { sel.addRange(old); } 8985 else if (gecko) { this.startGracePeriod(); } 8986 } 8987 this.rememberSelection(); 8988 }; 8989 8990 ContentEditableInput.prototype.startGracePeriod = function () { 8991 var this$1 = this; 8992 8993 clearTimeout(this.gracePeriod); 8994 this.gracePeriod = setTimeout(function () { 8995 this$1.gracePeriod = false; 8996 if (this$1.selectionChanged()) 8997 { this$1.cm.operation(function () { return this$1.cm.curOp.selectionChanged = true; }); } 8998 }, 20); 8999 }; 9000 9001 ContentEditableInput.prototype.showMultipleSelections = function (info) { 9002 removeChildrenAndAdd(this.cm.display.cursorDiv, info.cursors); 9003 removeChildrenAndAdd(this.cm.display.selectionDiv, info.selection); 9004 }; 9005 9006 ContentEditableInput.prototype.rememberSelection = function () {
9007 var sel = this.getSelection(); 9008 this.lastAnchorNode = sel.anchorNode; this.lastAnchorOffset = sel.anchorOffset; 9009 this.lastFocusNode = sel.focusNode; this.lastFocusOffset = sel.focusOffset; 9010 }; 9011 9012 ContentEditableInput.prototype.selectionInEditor = function () { 9013 var sel = this.getSelection(); 9014 if (!sel.rangeCount) { return false } 9015 var node = sel.getRangeAt(0).commonAncestorContainer; 9016 return contains(this.div, node) 9017 }; 9018 9019 ContentEditableInput.prototype.focus = function () { 9020 if (this.cm.options.readOnly != "nocursor") { 9021 if (!this.selectionInEditor() || activeElt(this.div.ownerDocument
vendor: 13,738 bytes, lines 9021-9373
9021) != this.div) 9022 { this.showSelection(this.prepareSelection(), true); } 9023 this.div.focus(); 9024 } 9025 }; 9026 ContentEditableInput.prototype.blur = function () { this.div.blur(); }; 9027 ContentEditableInput.prototype.getField = function () { return this.div }; 9028 9029 ContentEditableInput.prototype.supportsTouch = function () { return true }; 9030 9031 ContentEditableInput.prototype.receivedFocus = function () { 9032 var this$1 = this; 9033 9034 var input = this; 9035 if (this.selectionInEditor()) 9036 { setTimeout(function () { return this$1.pollSelection(); }, 20); } 9037 else 9038 { runInOp(this.cm, function () { return input.cm.curOp.selectionChanged = true; }); } 9039 9040 function poll() { 9041 if (input.cm.state.focused) { 9042 input.pollSelection(); 9043 input.polling.set(input.cm.options.pollInterval, poll); 9044 } 9045 } 9046 this.polling.set(this.cm.options.pollInterval, poll); 9047 }; 9048 9049 ContentEditableInput.prototype.selectionChanged = function () { 9050 var sel = this.getSelection(); 9051 return sel.anchorNode != this.lastAnchorNode || sel.anchorOffset != this.lastAnchorOffset || 9052 sel.focusNode != this.lastFocusNode || sel.focusOffset != this.lastFocusOffset 9053 }; 9054 9055 ContentEditableInput.prototype.pollSelection = function () { 9056 if (this.readDOMTimeout != null || this.gracePeriod || !this.selectionChanged()) { return } 9057 var sel = this.getSelection(), cm = this.cm; 9058 // On Android Chrome (version 56, at least), backspacing into an 9059 // uneditable block element will put the cursor in that element, 9060 // and then, because it's not editable, hide the virtual keyboard. 9061 // Because Android doesn't allow us to actually detect backspace 9062 // presses in a sane way, this code checks for when that happens 9063 // and simulates a backspace press in this case. 9064 if (android && chrome && this.cm.display.gutterSpecs.length && isInGutter(sel.anchorNode)) { 9065 this.cm.triggerOnKeyDown({type: "keydown", keyCode: 8, preventDefault: Math.abs}); 9066 this.blur(); 9067 this.focus(); 9068 return 9069 } 9070 if (this.composing) { return } 9071 this.rememberSelection(); 9072 var anchor = domToPos(cm, sel.anchorNode, sel.anchorOffset); 9073 var head = domToPos(cm, sel.focusNode, sel.focusOffset); 9074 if (anchor && head) { runInOp(cm, function () { 9075 setSelection(cm.doc, simpleSelection(anchor, head), sel_dontScroll); 9076 if (anchor.bad || head.bad) { cm.curOp.selectionChanged = true; } 9077 }); } 9078 }; 9079 9080 ContentEditableInput.prototype.pollContent = function () { 9081 if (this.readDOMTimeout != null) { 9082 clearTimeout(this.readDOMTimeout); 9083 this.readDOMTimeout = null; 9084 } 9085 9086 var cm = this.cm, display = cm.display, sel = cm.doc.sel.primary(); 9087 var from = sel.from(), to = sel.to(); 9088 if (from.ch == 0 && from.line > cm.firstLine()) 9089 { from = Pos(from.line - 1, getLine(cm.doc, from.line - 1).length); } 9090 if (to.ch == getLine(cm.doc, to.line).text.length && to.line < cm.lastLine()) 9091 { to = Pos(to.line + 1, 0); } 9092 if (from.line < display.viewFrom || to.line > display.viewTo - 1) { return false } 9093 9094 var fromIndex, fromLine, fromNode; 9095 if (from.line == display.viewFrom || (fromIndex = findViewIndex(cm, from.line)) == 0) { 9096 fromLine = lineNo(display.view[0].line); 9097 fromNode = display.view[0].node; 9098 } else { 9099 fromLine = lineNo(display.view[fromIndex].line); 9100 fromNode = display.view[fromIndex - 1].node.nextSibling; 9101 } 9102 var toIndex = findViewIndex(cm, to.line); 9103 var toLine, toNode; 9104 if (toIndex == display.view.length - 1) { 9105 toLine = display.viewTo - 1; 9106 toNode = display.lineDiv.lastChild; 9107 } else { 9108 toLine = lineNo(display.view[toIndex + 1].line) - 1; 9109 toNode = display.view[toIndex + 1].node.previousSibling; 9110 } 9111 9112 if (!fromNode) { return false } 9113 var newText = cm.doc.splitLines(domTextBetween(cm, fromNode, toNode, fromLine, toLine)); 9114 var oldText = getBetween(cm.doc, Pos(fromLine, 0), Pos(toLine, getLine(cm.doc, toLine).text.length)); 9115 while (newText.length > 1 && oldText.length > 1) { 9116 if (lst(newText) == lst(oldText)) { newText.pop(); oldText.pop(); toLine--; } 9117 else if (newText[0] == oldText[0]) { newText.shift(); oldText.shift(); fromLine++; } 9118 else { break } 9119 } 9120 9121 var cutFront = 0, cutEnd = 0; 9122 var newTop = newText[0], oldTop = oldText[0], maxCutFront = Math.min(newTop.length, oldTop.length); 9123 while (cutFront < maxCutFront && newTop.charCodeAt(cutFront) == oldTop.charCodeAt(cutFront)) 9124 { ++cutFront; } 9125 var newBot = lst(newText), oldBot = lst(oldText); 9126 var maxCutEnd = Math.min(newBot.length - (newText.length == 1 ? cutFront : 0), 9127 oldBot.length - (oldText.length == 1 ? cutFront : 0)); 9128 while (cutEnd < maxCutEnd && 9129 newBot.charCodeAt(newBot.length - cutEnd - 1) == oldBot.charCodeAt(oldBot.length - cutEnd - 1)) 9130 { ++cutEnd; } 9131 // Try to move start of change to start of selection if ambiguous 9132 if (newText.length == 1 && oldText.length == 1 && fromLine == from.line) { 9133 while (cutFront && cutFront > from.ch && 9134 newBot.charCodeAt(newBot.length - cutEnd - 1) == oldBot.charCodeAt(oldBot.length - cutEnd - 1)) { 9135 cutFront--; 9136 cutEnd++; 9137 } 9138 } 9139 9140 newText[newText.length - 1] = newBot.slice(0, newBot.length - cutEnd).replace(/^\u200b+/, ""); 9141 newText[0] = newText[0].slice(cutFront).replace(/\u200b+$/, ""); 9142 9143 var chFrom = Pos(fromLine, cutFront); 9144 var chTo = Pos(toLine, oldText.length ? lst(oldText).length - cutEnd : 0); 9145 if (newText.length > 1 || newText[0] || cmp(chFrom, chTo)) { 9146 replaceRange(cm.doc, newText, chFrom, chTo, "+input"); 9147 return true 9148 } 9149 }; 9150 9151 ContentEditableInput.prototype.ensurePolled = function () { 9152 this.forceCompositionEnd(); 9153 }; 9154 ContentEditableInput.prototype.reset = function () { 9155 this.forceCompositionEnd(); 9156 }; 9157 ContentEditableInput.prototype.forceCompositionEnd = function () { 9158 if (!this.composing) { return } 9159 clearTimeout(this.readDOMTimeout); 9160 this.composing = null; 9161 this.updateFromDOM(); 9162 this.div.blur(); 9163 this.div.focus(); 9164 }; 9165 ContentEditableInput.prototype.readFromDOMSoon = function () { 9166 var this$1 = this; 9167 9168 if (this.readDOMTimeout != null) { return } 9169 this.readDOMTimeout = setTimeout(function () { 9170 this$1.readDOMTimeout = null; 9171 if (this$1.composing) { 9172 if (this$1.composing.done) { this$1.composing = null; } 9173 else { return } 9174 } 9175 this$1.updateFromDOM(); 9176 }, 80); 9177 }; 9178 9179 ContentEditableInput.prototype.updateFromDOM = function () { 9180 var this$1 = this; 9181 9182 if (this.cm.isReadOnly() || !this.pollContent()) 9183 { runInOp(this.cm, function () { return regChange(this$1.cm); }); } 9184 }; 9185 9186 ContentEditableInput.prototype.setUneditable = function (node) { 9187 node.contentEditable = "false"; 9188 }; 9189 9190 ContentEditableInput.prototype.onKeyPress = function (e) { 9191 if (e.charCode == 0 || this.composing) { return } 9192 e.preventDefault(); 9193 if (!this.cm.isReadOnly()) 9194 { operation(this.cm, applyTextInput)(this.cm, String.fromCharCode(e.charCode == null ? e.keyCode : e.charCode), 0); } 9195 }; 9196 9197 ContentEditableInput.prototype.readOnlyChanged = function (val) { 9198 this.div.contentEditable = String(val != "nocursor"); 9199 }; 9200 9201 ContentEditableInput.prototype.onContextMenu = function () {}; 9202 ContentEditableInput.prototype.resetPosition = function () {}; 9203 9204 ContentEditableInput.prototype.needsContentAttribute = true; 9205 9206 function posToDOM(cm, pos) { 9207 var view = findViewForLine(cm, pos.line); 9208 if (!view || view.hidden) { return null } 9209 var line = getLine(cm.doc, pos.line); 9210 var info = mapFromLineView(view, line, pos.line); 9211 9212 var order = getOrder(line, cm.doc.direction), side = "left"; 9213 if (order) { 9214 var partPos = getBidiPartAt(order, pos.ch); 9215 side = partPos % 2 ? "right" : "left"; 9216 } 9217 var result = nodeAndOffsetInLineMap(info.map, pos.ch, side); 9218 result.offset = result.collapse == "right" ? result.end : result.start; 9219 return result 9220 } 9221 9222 function isInGutter(node) { 9223 for (var scan = node; scan; scan = scan.parentNode) 9224 { if (/CodeMirror-gutter-wrapper/.test(scan.className)) { return true } } 9225 return false 9226 } 9227 9228 function badPos(pos, bad) { if (bad) { pos.bad = true; } return pos } 9229 9230 function domTextBetween(cm, from, to, fromLine, toLine) { 9231 var text = "", closing = false, lineSep = cm.doc.lineSeparator(), extraLinebreak = false; 9232 function recognizeMarker(id) { return function (marker) { return marker.id == id; } } 9233 function close() { 9234 if (closing) { 9235 text += lineSep; 9236 if (extraLinebreak) { text += lineSep; } 9237 closing = extraLinebreak = false; 9238 } 9239 } 9240 function addText(str) { 9241 if (str) { 9242 close(); 9243 text += str; 9244 } 9245 } 9246 function walk(node) { 9247 if (node.nodeType == 1) { 9248 var cmText = node.getAttribute("cm-text"); 9249 if (cmText) { 9250 addText(cmText); 9251 return 9252 } 9253 var markerID = node.getAttribute("cm-marker"), range; 9254 if (markerID) { 9255 var found = cm.findMarks(Pos(fromLine, 0), Pos(toLine + 1, 0), recognizeMarker(+markerID)); 9256 if (found.length && (range = found[0].find(0))) 9257 { addText(getBetween(cm.doc, range.from, range.to).join(lineSep)); } 9258 return 9259 } 9260 if (node.getAttribute("contenteditable") == "false") { return } 9261 var isBlock = /^(pre|div|p|li|table|br)$/i.test(node.nodeName); 9262 if (!/^br$/i.test(node.nodeName) && node.textContent.length == 0) { return } 9263 9264 if (isBlock) { close(); } 9265 for (var i = 0; i < node.childNodes.length; i++) 9266 { walk(node.childNodes[i]); } 9267 9268 if (/^(pre|p)$/i.test(node.nodeName)) { extraLinebreak = true; } 9269 if (isBlock) { closing = true; } 9270 } else if (node.nodeType == 3) { 9271 addText(node.nodeValue.replace(/\u200b/g, "").replace(/\u00a0/g, " ")); 9272 } 9273 } 9274 for (;;) { 9275 walk(from); 9276 if (from == to) { break } 9277 from = from.nextSibling; 9278 extraLinebreak = false; 9279 } 9280 return text 9281 } 9282 9283 function domToPos(cm, node, offset) { 9284 var lineNode; 9285 if (node == cm.display.lineDiv) { 9286 lineNode = cm.display.lineDiv.childNodes[offset]; 9287 if (!lineNode) { return badPos(cm.clipPos(Pos(cm.display.viewTo - 1)), true) } 9288 node = null; offset = 0; 9289 } else { 9290 for (lineNode = node;; lineNode = lineNode.parentNode) { 9291 if (!lineNode || lineNode == cm.display.lineDiv) { return null } 9292 if (lineNode.parentNode && lineNode.parentNode == cm.display.lineDiv) { break } 9293 } 9294 } 9295 for (var i = 0; i < cm.display.view.length; i++) { 9296 var lineView = cm.display.view[i]; 9297 if (lineView.node == lineNode) 9298 { return locateNodeInLineView(lineView, node, offset) } 9299 } 9300 } 9301 9302 function locateNodeInLineView(lineView, node, offset) { 9303 var wrapper = lineView.text.firstChild, bad = false; 9304 if (!node || !contains(wrapper, node)) { return badPos(Pos(lineNo(lineView.line), 0), true) } 9305 if (node == wrapper) { 9306 bad = true; 9307 node = wrapper.childNodes[offset]; 9308 offset = 0; 9309 if (!node) { 9310 var line = lineView.rest ? lst(lineView.rest) : lineView.line; 9311 return badPos(Pos(lineNo(line), line.text.length), bad) 9312 } 9313 } 9314 9315 var textNode = node.nodeType == 3 ? node : null, topNode = node; 9316 if (!textNode && node.childNodes.length == 1 && node.firstChild.nodeType == 3) { 9317 textNode = node.firstChild; 9318 if (offset) { offset = textNode.nodeValue.length; } 9319 } 9320 while (topNode.parentNode != wrapper) { topNode = topNode.parentNode; } 9321 var measure = lineView.measure, maps = measure.maps; 9322 9323 function find(textNode, topNode, offset) { 9324 for (var i = -1; i < (maps ? maps.length : 0); i++) { 9325 var map = i < 0 ? measure.map : maps[i]; 9326 for (var j = 0; j < map.length; j += 3) { 9327 var curNode = map[j + 2]; 9328 if (curNode == textNode || curNode == topNode) { 9329 var line = lineNo(i < 0 ? lineView.line : lineView.rest[i]); 9330 var ch = map[j] + offset; 9331 if (offset < 0 || curNode != textNode) { ch = map[j + (offset ? 1 : 0)]; } 9332 return Pos(line, ch) 9333 } 9334 } 9335 } 9336 } 9337 var found = find(textNode, topNode, offset); 9338 if (found) { return badPos(found, bad) } 9339 9340 // FIXME this is all really shaky. might handle the few cases it needs to handle, but likely to cause problems 9341 for (var after = topNode.nextSibling, dist = textNode ? textNode.nodeValue.length - offset : 0; after; after = after.nextSibling) { 9342 found = find(after, after.firstChild, 0); 9343 if (found) 9344 { return badPos(Pos(found.line, found.ch - dist), bad) } 9345 else 9346 { dist += after.textContent.length; } 9347 } 9348 for (var before = topNode.previousSibling, dist$1 = offset; before; before = before.previousSibling) { 9349 found = find(before, before.firstChild, -1); 9350 if (found) 9351 { return badPos(Pos(found.line, found.ch + dist$1), bad) } 9352 else 9353 { dist$1 += before.textContent.length; } 9354 } 9355 } 9356 9357 // TEXTAREA INPUT STYLE 9358 9359 var TextareaInput = function(cm) { 9360 this.cm = cm; 9361 // See input.poll and input.reset 9362 this.prevInput = ""; 9363 9364 // Flag that indicates whether we expect input to appear real soon 9365 // now (after some event like 'keypress' or 'input') and are 9366 // polling intensively. 9367 this.pollingFast = false; 9368 // Self-resetting timeout for the poller 9369 this.polling = new Delayed(); 9370 // Used to work around IE issue with selection being forgotten when focus moves away from textarea 9371 this.hasSelection = false; 9372 this.composing = null; 9373
vendor: 18,233 bytes, lines 9373-9842
9373 this.resetting = false; 9374 }; 9375 9376 TextareaInput.prototype.init = function (display) { 9377 var this$1 = this; 9378 9379 var input = this, cm = this.cm; 9380 this.createField(display); 9381 var te = this.textarea; 9382 9383 display.wrapper.insertBefore(this.wrapper, display.wrapper.firstChild); 9384 9385 // Needed to hide big blue blinking cursor on Mobile Safari (doesn't seem to work in iOS 8 anymore) 9386 if (ios) { te.style.width = "0px"; } 9387 9388 on(te, "input", function () { 9389 if (ie && ie_version >= 9 && this$1.hasSelection) { this$1.hasSelection = null; } 9390 input.poll(); 9391 }); 9392 9393 on(te, "paste", function (e) { 9394 if (signalDOMEvent(cm, e) || handlePaste(e, cm)) { return } 9395 9396 cm.state.pasteIncoming = +new Date; 9397 input.fastPoll(); 9398 }); 9399 9400 function prepareCopyCut(e) { 9401 if (signalDOMEvent(cm, e)) { return } 9402 if (cm.somethingSelected()) { 9403 setLastCopied({lineWise: false, text: cm.getSelections()}); 9404 } else if (!cm.options.lineWiseCopyCut) { 9405 return 9406 } else { 9407 var ranges = copyableRanges(cm); 9408 setLastCopied({lineWise: true, text: ranges.text}); 9409 if (e.type == "cut") { 9410 cm.setSelections(ranges.ranges, null, sel_dontScroll); 9411 } else { 9412 input.prevInput = ""; 9413 te.value = ranges.text.join("\n"); 9414 selectInput(te); 9415 } 9416 } 9417 if (e.type == "cut") { cm.state.cutIncoming = +new Date; } 9418 } 9419 on(te, "cut", prepareCopyCut); 9420 on(te, "copy", prepareCopyCut); 9421 9422 on(display.scroller, "paste", function (e) { 9423 if (eventInWidget(display, e) || signalDOMEvent(cm, e)) { return } 9424 if (!te.dispatchEvent) { 9425 cm.state.pasteIncoming = +new Date; 9426 input.focus(); 9427 return 9428 } 9429 9430 // Pass the `paste` event to the textarea so it's handled by its event listener. 9431 var event = new Event("paste"); 9432 event.clipboardData = e.clipboardData; 9433 te.dispatchEvent(event); 9434 }); 9435 9436 // Prevent normal selection in the editor (we handle our own) 9437 on(display.lineSpace, "selectstart", function (e) { 9438 if (!eventInWidget(display, e)) { e_preventDefault(e); } 9439 }); 9440 9441 on(te, "compositionstart", function () { 9442 var start = cm.getCursor("from"); 9443 if (input.composing) { input.composing.range.clear(); } 9444 input.composing = { 9445 start: start, 9446 range: cm.markText(start, cm.getCursor("to"), {className: "CodeMirror-composing"}) 9447 }; 9448 }); 9449 on(te, "compositionend", function () { 9450 if (input.composing) { 9451 input.poll(); 9452 input.composing.range.clear(); 9453 input.composing = null; 9454 } 9455 }); 9456 }; 9457 9458 TextareaInput.prototype.createField = function (_display) { 9459 // Wraps and hides input textarea 9460 this.wrapper = hiddenTextarea(); 9461 // The semihidden textarea that is focused when the editor is 9462 // focused, and receives input. 9463 this.textarea = this.wrapper.firstChild; 9464 var opts = this.cm.options; 9465 disableBrowserMagic(this.textarea, opts.spellcheck, opts.autocorrect, opts.autocapitalize); 9466 }; 9467 9468 TextareaInput.prototype.screenReaderLabelChanged = function (label) { 9469 // Label for screenreaders, accessibility 9470 if(label) { 9471 this.textarea.setAttribute('aria-label', label); 9472 } else { 9473 this.textarea.removeAttribute('aria-label'); 9474 } 9475 }; 9476 9477 TextareaInput.prototype.prepareSelection = function () { 9478 // Redraw the selection and/or cursor 9479 var cm = this.cm, display = cm.display, doc = cm.doc; 9480 var result = prepareSelection(cm); 9481 9482 // Move the hidden textarea near the cursor to prevent scrolling artifacts 9483 if (cm.options.moveInputWithCursor) { 9484 var headPos = cursorCoords(cm, doc.sel.primary().head, "div"); 9485 var wrapOff = display.wrapper.getBoundingClientRect(), lineOff = display.lineDiv.getBoundingClientRect(); 9486 result.teTop = Math.max(0, Math.min(display.wrapper.clientHeight - 10, 9487 headPos.top + lineOff.top - wrapOff.top)); 9488 result.teLeft = Math.max(0, Math.min(display.wrapper.clientWidth - 10, 9489 headPos.left + lineOff.left - wrapOff.left)); 9490 } 9491 9492 return result 9493 }; 9494 9495 TextareaInput.prototype.showSelection = function (drawn) { 9496 var cm = this.cm, display = cm.display; 9497 removeChildrenAndAdd(display.cursorDiv, drawn.cursors); 9498 removeChildrenAndAdd(display.selectionDiv, drawn.selection); 9499 if (drawn.teTop != null) { 9500 this.wrapper.style.top = drawn.teTop + "px"; 9501 this.wrapper.style.left = drawn.teLeft + "px"; 9502 } 9503 }; 9504 9505 // Reset the input to correspond to the selection (or to be empty, 9506 // when not typing and nothing is selected) 9507 TextareaInput.prototype.reset = function (typing) { 9508 if (this.contextMenuPending || this.composing && typing) { return } 9509 var cm = this.cm; 9510 this.resetting = true; 9511 if (cm.somethingSelected()) { 9512 this.prevInput = ""; 9513 var content = cm.getSelection(); 9514 this.textarea.value = content; 9515 if (cm.state.focused) { selectInput(this.textarea); } 9516 if (ie && ie_version >= 9) { this.hasSelection = content; } 9517 } else if (!typing) { 9518 this.prevInput = this.textarea.value = ""; 9519 if (ie && ie_version >= 9) { this.hasSelection = null; } 9520 } 9521 this.resetting = false; 9522 }; 9523 9524 TextareaInput.prototype.getField = function () { return this.textarea }; 9525 9526 TextareaInput.prototype.supportsTouch = function () { return false }; 9527 9528 TextareaInput.prototype.focus = function () { 9529 if (this.cm.options.readOnly != "nocursor" && (!mobile || activeElt(this.textarea.ownerDocument) != this.textarea)) { 9530 try { this.textarea.focus(); } 9531 catch (e) {} // IE8 will throw if the textarea is display: none or not in DOM 9532 } 9533 }; 9534 9535 TextareaInput.prototype.blur = function () { this.textarea.blur(); }; 9536 9537 TextareaInput.prototype.resetPosition = function () { 9538 this.wrapper.style.top = this.wrapper.style.left = 0; 9539 }; 9540 9541 TextareaInput.prototype.receivedFocus = function () { this.slowPoll(); }; 9542 9543 // Poll for input changes, using the normal rate of polling. This 9544 // runs as long as the editor is focused. 9545 TextareaInput.prototype.slowPoll = function () { 9546 var this$1 = this; 9547 9548 if (this.pollingFast) { return } 9549 this.polling.set(this.cm.options.pollInterval, function () { 9550 this$1.poll(); 9551 if (this$1.cm.state.focused) { this$1.slowPoll(); } 9552 }); 9553 }; 9554 9555 // When an event has just come in that is likely to add or change 9556 // something in the input textarea, we poll faster, to ensure that 9557 // the change appears on the screen quickly. 9558 TextareaInput.prototype.fastPoll = function () { 9559 var missed = false, input = this; 9560 input.pollingFast = true; 9561 function p() { 9562 var changed = input.poll(); 9563 if (!changed && !missed) {missed = true; input.polling.set(60, p);} 9564 else {input.pollingFast = false; input.slowPoll();} 9565 } 9566 input.polling.set(20, p); 9567 }; 9568 9569 // Read input from the textarea, and update the document to match. 9570 // When something is selected, it is present in the textarea, and 9571 // selected (unless it is huge, in which case a placeholder is 9572 // used). When nothing is selected, the cursor sits after previously 9573 // seen text (can be empty), which is stored in prevInput (we must 9574 // not reset the textarea when typing, because that breaks IME). 9575 TextareaInput.prototype.poll = function () { 9576 var this$1 = this; 9577 9578 var cm = this.cm, input = this.textarea, prevInput = this.prevInput; 9579 // Since this is called a *lot*, try to bail out as cheaply as 9580 // possible when it is clear that nothing happened. hasSelection 9581 // will be the case when there is a lot of text in the textarea, 9582 // in which case reading its value would be expensive. 9583 if (this.contextMenuPending || this.resetting || !cm.state.focused || 9584 (hasSelection(input) && !prevInput && !this.composing) || 9585 cm.isReadOnly() || cm.options.disableInput || cm.state.keySeq) 9586 { return false } 9587 9588 var text = input.value; 9589 // If nothing changed, bail. 9590 if (text == prevInput && !cm.somethingSelected()) { return false } 9591 // Work around nonsensical selection resetting in IE9/10, and 9592 // inexplicable appearance of private area unicode characters on 9593 // some key combos in Mac (#2689). 9594 if (ie && ie_version >= 9 && this.hasSelection === text || 9595 mac && /[\uf700-\uf7ff]/.test(text)) { 9596 cm.display.input.reset(); 9597 return false 9598 } 9599 9600 if (cm.doc.sel == cm.display.selForContextMenu) { 9601 var first = text.charCodeAt(0); 9602 if (first == 0x200b && !prevInput) { prevInput = "\u200b"; } 9603 if (first == 0x21da) { this.reset(); return this.cm.execCommand("undo") } 9604 } 9605 // Find the part of the input that is actually new 9606 var same = 0, l = Math.min(prevInput.length, text.length); 9607 while (same < l && prevInput.charCodeAt(same) == text.charCodeAt(same)) { ++same; } 9608 9609 runInOp(cm, function () { 9610 applyTextInput(cm, text.slice(same), prevInput.length - same, 9611 null, this$1.composing ? "*compose" : null); 9612 9613 // Don't leave long text in the textarea, since it makes further polling slow 9614 if (text.length > 1000 || text.indexOf("\n") > -1) { input.value = this$1.prevInput = ""; } 9615 else { this$1.prevInput = text; } 9616 9617 if (this$1.composing) { 9618 this$1.composing.range.clear(); 9619 this$1.composing.range = cm.markText(this$1.composing.start, cm.getCursor("to"), 9620 {className: "CodeMirror-composing"}); 9621 } 9622 }); 9623 return true 9624 }; 9625 9626 TextareaInput.prototype.ensurePolled = function () { 9627 if (this.pollingFast && this.poll()) { this.pollingFast = false; } 9628 }; 9629 9630 TextareaInput.prototype.onKeyPress = function () { 9631 if (ie && ie_version >= 9) { this.hasSelection = null; } 9632 this.fastPoll(); 9633 }; 9634 9635 TextareaInput.prototype.onContextMenu = function (e) { 9636 var input = this, cm = input.cm, display = cm.display, te = input.textarea; 9637 if (input.contextMenuPending) { input.contextMenuPending(); } 9638 var pos = posFromMouse(cm, e), scrollPos = display.scroller.scrollTop; 9639 if (!pos || presto) { return } // Opera is difficult. 9640 9641 // Reset the current text selection only if the click is done outside of the selection 9642 // and 'resetSelectionOnContextMenu' option is true. 9643 var reset = cm.options.resetSelectionOnContextMenu; 9644 if (reset && cm.doc.sel.contains(pos) == -1) 9645 { operation(cm, setSelection)(cm.doc, simpleSelection(pos), sel_dontScroll); } 9646 9647 var oldCSS = te.style.cssText, oldWrapperCSS = input.wrapper.style.cssText; 9648 var wrapperBox = input.wrapper.offsetParent.getBoundingClientRect(); 9649 input.wrapper.style.cssText = "position: static"; 9650 te.style.cssText = "position: absolute; width: 30px; height: 30px;\n top: " + (e.clientY - wrapperBox.top - 5) + "px; left: " + (e.clientX - wrapperBox.left - 5) + "px;\n z-index: 1000; background: " + (ie ? "rgba(255, 255, 255, .05)" : "transparent") + ";\n outline: none; border-width: 0; outline: none; overflow: hidden; opacity: .05; filter: alpha(opacity=5);"; 9651 var oldScrollY; 9652 if (webkit) { oldScrollY = te.ownerDocument.defaultView.scrollY; } // Work around Chrome issue (#2712) 9653 display.input.focus(); 9654 if (webkit) { te.ownerDocument.defaultView.scrollTo(null, oldScrollY); } 9655 display.input.reset(); 9656 // Adds "Select all" to context menu in FF 9657 if (!cm.somethingSelected()) { te.value = input.prevInput = " "; } 9658 input.contextMenuPending = rehide; 9659 display.selForContextMenu = cm.doc.sel; 9660 clearTimeout(display.detectingSelectAll); 9661 9662 // Select-all will be greyed out if there's nothing to select, so 9663 // this adds a zero-width space so that we can later check whether 9664 // it got selected. 9665 function prepareSelectAllHack() { 9666 if (te.selectionStart != null) { 9667 var selected = cm.somethingSelected(); 9668 var extval = "\u200b" + (selected ? te.value : ""); 9669 te.value = "\u21da"; // Used to catch context-menu undo 9670 te.value = extval; 9671 input.prevInput = selected ? "" : "\u200b"; 9672 te.selectionStart = 1; te.selectionEnd = extval.length; 9673 // Re-set this, in case some other handler touched the 9674 // selection in the meantime. 9675 display.selForContextMenu = cm.doc.sel; 9676 } 9677 } 9678 function rehide() { 9679 if (input.contextMenuPending != rehide) { return } 9680 input.contextMenuPending = false; 9681 input.wrapper.style.cssText = oldWrapperCSS; 9682 te.style.cssText = oldCSS; 9683 if (ie && ie_version < 9) { display.scrollbars.setScrollTop(display.scroller.scrollTop = scrollPos); } 9684 9685 // Try to detect the user choosing select-all 9686 if (te.selectionStart != null) { 9687 if (!ie || (ie && ie_version < 9)) { prepareSelectAllHack(); } 9688 var i = 0, poll = function () { 9689 if (display.selForContextMenu == cm.doc.sel && te.selectionStart == 0 && 9690 te.selectionEnd > 0 && input.prevInput == "\u200b") { 9691 operation(cm, selectAll)(cm); 9692 } else if (i++ < 10) { 9693 display.detectingSelectAll = setTimeout(poll, 500); 9694 } else { 9695 display.selForContextMenu = null; 9696 display.input.reset(); 9697 } 9698 }; 9699 display.detectingSelectAll = setTimeout(poll, 200); 9700 } 9701 } 9702 9703 if (ie && ie_version >= 9) { prepareSelectAllHack(); } 9704 if (captureRightClick) { 9705 e_stop(e); 9706 var mouseup = function () { 9707 off(window, "mouseup", mouseup); 9708 setTimeout(rehide, 20); 9709 }; 9710 on(window, "mouseup", mouseup); 9711 } else { 9712 setTimeout(rehide, 50); 9713 } 9714 }; 9715 9716 TextareaInput.prototype.readOnlyChanged = function (val) { 9717 if (!val) { this.reset(); } 9718 this.textarea.disabled = val == "nocursor"; 9719 this.textarea.readOnly = !!val; 9720 }; 9721 9722 TextareaInput.prototype.setUneditable = function () {}; 9723 9724 TextareaInput.prototype.needsContentAttribute = false; 9725 9726 function fromTextArea(textarea, options) { 9727 options = options ? copyObj(options) : {}; 9728 options.value = textarea.value; 9729 if (!options.tabindex && textarea.tabIndex) 9730 { options.tabindex = textarea.tabIndex; } 9731 if (!options.placeholder && textarea.placeholder) 9732 { options.placeholder = textarea.placeholder; } 9733 // Set autofocus to true if this textarea is focused, or if it has 9734 // autofocus and no other element is focused. 9735 if (options.autofocus == null) { 9736 var hasFocus = activeElt(textarea.ownerDocument); 9737 options.autofocus = hasFocus == textarea || 9738 textarea.getAttribute("autofocus") != null && hasFocus == document.body; 9739 } 9740 9741 function save() {textarea.value = cm.getValue();} 9742 9743 var realSubmit; 9744 if (textarea.form) { 9745 on(textarea.form, "submit", save); 9746 // Deplorable hack to make the submit method do the right thing. 9747 if (!options.leaveSubmitMethodAlone) { 9748 var form = textarea.form; 9749 realSubmit = form.submit; 9750 try { 9751 var wrappedSubmit = form.submit = function () { 9752 save(); 9753 form.submit = realSubmit; 9754 form.submit(); 9755 form.submit = wrappedSubmit; 9756 }; 9757 } catch(e) {} 9758 } 9759 } 9760 9761 options.finishInit = function (cm) { 9762 cm.save = save; 9763 cm.getTextArea = function () { return textarea; }; 9764 cm.toTextArea = function () { 9765 cm.toTextArea = isNaN; // Prevent this from being ran twice 9766 save(); 9767 textarea.parentNode.removeChild(cm.getWrapperElement()); 9768 textarea.style.display = ""; 9769 if (textarea.form) { 9770 off(textarea.form, "submit", save); 9771 if (!options.leaveSubmitMethodAlone && typeof textarea.form.submit == "function") 9772 { textarea.form.submit = realSubmit; } 9773 } 9774 }; 9775 }; 9776 9777 textarea.style.display = "none"; 9778 var cm = CodeMirror(function (node) { return textarea.parentNode.insertBefore(node, textarea.nextSibling); }, 9779 options); 9780 return cm 9781 } 9782 9783 function addLegacyProps(CodeMirror) { 9784 CodeMirror.off = off; 9785 CodeMirror.on = on; 9786 CodeMirror.wheelEventPixels = wheelEventPixels; 9787 CodeMirror.Doc = Doc; 9788 CodeMirror.splitLines = splitLinesAuto; 9789 CodeMirror.countColumn = countColumn; 9790 CodeMirror.findColumn = findColumn; 9791 CodeMirror.isWordChar = isWordCharBasic; 9792 CodeMirror.Pass = Pass; 9793 CodeMirror.signal = signal; 9794 CodeMirror.Line = Line; 9795 CodeMirror.changeEnd = changeEnd; 9796 CodeMirror.scrollbarModel = scrollbarModel; 9797 CodeMirror.Pos = Pos; 9798 CodeMirror.cmpPos = cmp; 9799 CodeMirror.modes = modes; 9800 CodeMirror.mimeModes = mimeModes; 9801 CodeMirror.resolveMode = resolveMode; 9802 CodeMirror.getMode = getMode; 9803 CodeMirror.modeExtensions = modeExtensions; 9804 CodeMirror.extendMode = extendMode; 9805 CodeMirror.copyState = copyState; 9806 CodeMirror.startState = startState; 9807 CodeMirror.innerMode = innerMode; 9808 CodeMirror.commands = commands; 9809 CodeMirror.keyMap = keyMap; 9810 CodeMirror.keyName = keyName; 9811 CodeMirror.isModifierKey = isModifierKey; 9812 CodeMirror.lookupKey = lookupKey; 9813 CodeMirror.normalizeKeyMap = normalizeKeyMap; 9814 CodeMirror.StringStream = StringStream; 9815 CodeMirror.SharedTextMarker = SharedTextMarker; 9816 CodeMirror.TextMarker = TextMarker; 9817 CodeMirror.LineWidget = LineWidget; 9818 CodeMirror.e_preventDefault = e_preventDefault; 9819 CodeMirror.e_stopPropagation = e_stopPropagation; 9820 CodeMirror.e_stop = e_stop; 9821 CodeMirror.addClass = addClass; 9822 CodeMirror.contains = contains; 9823 CodeMirror.rmClass = rmClass; 9824 CodeMirror.keyNames = keyNames; 9825 } 9826 9827 // EDITOR CONSTRUCTOR 9828 9829 defineOptions(CodeMirror); 9830 9831 addEditorMethods(CodeMirror); 9832 9833 // Set up methods on CodeMirror's prototype to redirect to the editor's document. 9834 var dontDelegate = "iter insert remove copy getEditor constructor".split(" "); 9835 for (var prop in Doc.prototype) { if (Doc.prototype.hasOwnProperty(prop) && indexOf(dontDelegate, prop) < 0) 9836 { CodeMirror.prototype[prop] = (function(method) { 9837 return function() {return method.apply(this.doc, arguments)} 9838 })(Doc.prototype[prop]); } } 9839 9840 eventMixin(Doc); 9841 CodeMirror.inputStyles = {"textarea": TextareaInput, "contenteditable": ContentEditableInput}; 9842
vendor: 979 bytes, lines 9843-9874
9843 // Extra arguments are stored as the mode's dependencies, which is 9844 // used by (legacy) mechanisms like loadmode.js to automatically 9845 // load a mode. (Preferred mechanism is the require/define calls.) 9846 CodeMirror.defineMode = function(name/*, mode, â¦*/) { 9847 if (!CodeMirror.defaults.mode && name != "null") { CodeMirror.defaults.mode = name; } 9848 defineMode.apply(this, arguments); 9849 }; 9850 9851 CodeMirror.defineMIME = defineMIME; 9852 9853 // Minimal default mode. 9854 CodeMirror.defineMode("null", function () { return ({token: function (stream) { return stream.skipToEnd(); }}); }); 9855 CodeMirror.defineMIME("text/plain", "null"); 9856 9857 // EXTENSIONS 9858 9859 CodeMirror.defineExtension = function (name, func) { 9860 CodeMirror.prototype[name] = func; 9861 }; 9862 CodeMirror.defineDocExtension = function (name, func) { 9863 Doc.prototype[name] = func; 9864 }; 9865 9866 CodeMirror.fromTextArea = fromTextArea; 9867 9868 addLegacyProps(CodeMirror); 9869 9870 CodeMirror.version = "5.65.12"; 9871 9872 return CodeMirror; 9873 9874})));
Line numbers count LF bytes from the start of the resource, as the search results do. Vendor segments are library code the classifier recognised; they are stored but not indexed. Bytes are shown as Latin1 characters, one per byte.