1/*! 2 * jQuery UI Draggable 1.9.1 3 * http://jqueryui.com 4 * 5 * Copyright 2012 jQuery Foundation and other contributors 6 * Released under the MIT license. 7 * http://jquery.org/license 8 * 9 * http://api.jqueryui.com/draggable/ 10 * 11 * Depends: 12 * jquery.ui.core.js 13 * jquery.ui.mouse.js 14 * jquery.ui.widget.js 15 */ 16(function( $, undefined ) { 17 18$.widget("ui.draggable", $.ui.mouse, { 19 version: "1.9.1", 20 widgetEventPrefix: "drag", 21 options: { 22 addClasses: true, 23 appendTo: "parent", 24 axis: false, 25 connectToSortable: false, 26 containment: false, 27 cursor: "auto", 28 cursorAt: false, 29 grid: false, 30 handle: false, 31 helper: "original", 32 iframeFix: false, 33 opacity: false, 34 refreshPositions: false, 35 revert: false, 36 revertDuration: 500, 37 scope: "default", 38 scroll: true, 39 scrollSensitivity: 20, 40 scrollSpeed: 20, 41 snap: false, 42 snapMode: "both", 43 snapTolerance: 20, 44 stack: false, 45 zIndex: false 46 }, 47 _create: function() { 48 49 if (this.options.helper == 'original' && !(/^(?:r|a|f)/).test(this.element.css("position"))) 50 this.element[0].style.position = 'relative'; 51 52 (this.options.addClasses && this.element.addClass("ui-draggable")); 53 (this.options.disabled && this.element.addClass("ui-draggable-disabled")); 54 55 this._mouseInit(); 56 57 }, 58 59 _destroy: function() { 60 this.element.removeClass( "ui-draggable ui-draggable-dragging ui-draggable-disabled" ); 61 this._mouseDestroy(); 62 }, 63 64 _mouseCapture: function(event) { 65 66 var o = this.options; 67 68 // among others, prevent a drag on a resizable-handle 69 if (this.helper || o.disabled || $(event.target).is('.ui-resizable-handle')) 70 return false; 71 72 //Quit if we're not on a valid handle 73 this.handle = this._getHandle(event); 74 if (!this.handle) 75 return false; 76 77 $(o.iframeFix === true ? "iframe" : o.iframeFix).each(function() { 78 $('<div class="ui-draggable-iframeFix" style="background: #fff;"></div>') 79 .css({ 80 width: this.offsetWidth+"px", height: this.offsetHeight+"px", 81 position: "absolute", opacity: "0.001", zIndex: 1000 82 }) 83 .css($(this).offset()) 84 .appendTo("body"); 85 }); 86 87 return true; 88 89 }, 90 91 _mouseStart: function(event) { 92 93 var o = this.options; 94 95 //Create and append the visible helper 96 this.helper = this._createHelper(event); 97 98 this.helper.addClass("ui-draggable-dragging"); 99 100 //Cache the helper size 101 this._cacheHelperProportions(); 102 103 //If ddmanager is used for droppables, set the global draggable 104 if($.ui.ddmanager) 105 $.ui.ddmanager.current = this; 106 107 /* 108 * - Position generation - 109 * This block generates everything position related - it's the core of draggables. 110 */ 111 112 //Cache the margins of the original element 113 this._cacheMargins(); 114 115 //Store the helper's css position 116 this.cssPosition = this.helper.css("position"); 117 this.scrollParent = this.helper.scrollParent(); 118 119 //The element's absolute position on the page minus margins 120 this.offset = this.positionAbs = this.element.offset(); 121 this.offset = { 122 top: this.offset.top - this.margins.top, 123 left: this.offset.left - this.margins.left 124 }; 125 126 $.extend(this.offset, { 127 click: { //Where the click happened, relative to the element 128 left: event.pageX - this.offset.left, 129 top: event.pageY - this.offset.top 130 }, 131 parent: this._getParentOffset(), 132 relative: this._getRelativeOffset() //This is a relative to absolute position minus the actual position calculation - only used for relative positioned helper 133 }); 134 135 //Generate the original position 136 this.originalPosition = this.position = this._generatePosition(event); 137 this.originalPageX = event.pageX; 138 this.originalPageY = event.pageY; 139 140 //Adjust the mouse offset relative to the helper if 'cursorAt' is supplied 141 (o.cursorAt && this._adjustOffsetFromHelper(o.cursorAt)); 142 143 //Set a containment if given in the options 144 if(o.containment) 145 this._setContainment(); 146 147 //Trigger event + callbacks 148 if(this._trigger("start", event) === false) { 149 this._clear(); 150 return false; 151 } 152 153 //Recache the helper size 154 this._cacheHelperProportions(); 155 156 //Prepare the droppable offsets 157 if ($.ui.ddmanager && !o.dropBehaviour) 158 $.ui.ddmanager.prepareOffsets(this, event); 159 160 161 this._mouseDrag(event, true); //Execute the drag once - this causes the helper not to be visible before getting its correct position 162 163 //If the ddmanager is used for droppables, inform the manager that dragging has started (see #5003) 164 if ( $.ui.ddmanager ) $.ui.ddmanager.dragStart(this, event); 165 166 return true; 167 }, 168 169 _mouseDrag: function(event, noPropagation) { 170 171 //Compute the helpers position 172 this.position = this._generatePosition(event); 173 this.positionAbs = this._convertPositionTo("absolute"); 174 175 //Call plugins and callbacks and use the resulting position if something is returned 176 if (!noPropagation) { 177 var ui = this._uiHash(); 178 if(this._trigger('drag', event, ui) === false) { 179 this._mouseUp({}); 180 return false;
181 } 182 this.position = ui.position; 183 } 184 185 if(!this.options.axis || this.options.axis != "y") this.helper[0].style.left = this.position.left+'px'; 186 if(!this.options.axis || this.options.axis != "x") this.helper[0].style.top = this.position.top+'px'; 187 if($.ui.ddmanager) $.ui.ddmanager.drag(this, event); 188 189 return false; 190 }, 191 192 _mouseStop: function(event) { 193 194 //If we are using droppables, inform the manager about the drop 195 var dropped = false; 196 if ($.ui.ddmanager && !this.options.dropBehaviour) 197 dropped = $.ui.ddmanager.drop(this, event); 198 199 //if a drop comes from outside (a sortable) 200 if(this.dropped) { 201 dropped = this.dropped; 202 this.dropped = false; 203 } 204 205 //if the original element is no longer in the DOM don't bother to continue (see #8269) 206 var element = this.element[0], elementInDom = false; 207 while ( element && (element = element.parentNode) ) { 208 if (element == document ) { 209 elementInDom = true; 210 } 211 } 212 if ( !elementInDom && this.options.helper === "original" ) 213 return false; 214 215 if((this.options.revert == "invalid" && !dropped) || (this.options.revert == "valid" && dropped) || this.options.revert === true || ($.isFunction(this.options.revert) && this.options.revert.call(this.element, dropped))) { 216 var that = this; 217 $(this.helper).animate(this.originalPosition, parseInt(this.options.revertDuration, 10), function() { 218 if(that._trigger("stop", event) !== false) { 219 that._clear(); 220 } 221 }); 222 } else { 223 if(this._trigger("stop", event) !== false) { 224 this._clear(); 225 } 226 } 227 228 return false; 229 }, 230 231 _mouseUp: function(event) { 232 //Remove frame helpers 233 $("div.ui-draggable-iframeFix").each(function() { 234 this.parentNode.removeChild(this); 235 }); 236 237 //If the ddmanager is used for droppables, inform the manager that dragging has stopped (see #5003) 238 if( $.ui.ddmanager ) $.ui.ddmanager.dragStop(this, event); 239 240 return $.ui.mouse.prototype._mouseUp.call(this, event); 241 }, 242 243 cancel: function() { 244 245 if(this.helper.is(".ui-draggable-dragging")) { 246 this._mouseUp({}); 247 } else { 248 this._clear(); 249 } 250 251 return this; 252 253 }, 254 255 _getHandle: function(event) { 256 257 var handle = !this.options.handle || !$(this.options.handle, this.element).length ? true : false; 258 $(this.options.handle, this.element) 259 .find("*") 260 .andSelf() 261 .each(function() { 262 if(this == event.target) handle = true; 263 }); 264 265 return handle; 266 267 }, 268 269 _createHelper: function(event) { 270 271 var o = this.options; 272 var helper = $.isFunction(o.helper) ? $(o.helper.apply(this.element[0], [event])) : (o.helper == 'clone' ? this.element.clone().removeAttr('id') : this.element); 273 274 if(!helper.parents('body').length) 275 helper.appendTo((o.appendTo == 'parent' ? this.element[0].parentNode : o.appendTo)); 276 277 if(helper[0] != this.element[0] && !(/(fixed|absolute)/).test(helper.css("position"))) 278 helper.css("position", "absolute"); 279 280 return helper; 281 282 }, 283 284 _adjustOffsetFromHelper: function(obj) { 285 if (typeof obj == 'string') { 286 obj = obj.split(' '); 287 } 288 if ($.isArray(obj)) { 289 obj = {left: +obj[0], top: +obj[1] || 0}; 290 } 291 if ('left' in obj) { 292 this.offset.click.left = obj.left + this.margins.left; 293 } 294 if ('right' in obj) { 295 this.offset.click.left = this.helperProportions.width - obj.right + this.margins.left; 296 } 297 if ('top' in obj) { 298 this.offset.click.top = obj.top + this.margins.top; 299 } 300 if ('bottom' in obj) { 301 this.offset.click.top = this.helperProportions.height - obj.bottom + this.margins.top; 302 } 303 }, 304 305 _getParentOffset: function() { 306 307 //Get the offsetParent and cache its position 308 this.offsetParent = this.helper.offsetParent(); 309 var po = this.offsetParent.offset(); 310 311 // This is a special case where we need to modify a offset calculated on start, since the following happened: 312 // 1. The position of the helper is absolute, so it's position is calculated based on the next positioned parent 313 // 2. The actual offset parent is a child of the scroll parent, and the scroll parent isn't the document, which means that 314 // the scroll is included in the initial calculation of the offset of the parent, and never recalculated upon drag 315 if(this.cssPosition == 'absolute' && this.scrollParent[0] != document && $.contains(this.scrollParent[0], this.offsetParent[0])) { 316 po.left += this.scrollParent.scrollLeft(); 317 po.top += this.scrollParent.scrollTop(); 318 } 319 320 if((this.offsetParent[0] == document.body) //This needs to be actually done for all browsers, since pageX/pageY includes this information 321 || (this.offsetParent[0].tagName && this.offsetParent[0].tagName.toLowerCase() == 'html' && $.ui.ie)) //Ugly IE fix 322 po = { top: 0, left: 0 }; 323 324 return { 325 top: po.top + (parseInt(this.offsetParent.css("borderTopWidth"),
32510) || 0), 326 left: po.left + (parseInt(this.offsetParent.css("borderLeftWidth"),10) || 0) 327 }; 328 329 }, 330 331 _getRelativeOffset: function() { 332 333 if(this.cssPosition == "relative") { 334 var p = this.element.position(); 335 return { 336 top: p.top - (parseInt(this.helper.css("top"),10) || 0) + this.scrollParent.scrollTop(), 337 left: p.left - (parseInt(this.helper.css("left"),10) || 0) + this.scrollParent.scrollLeft() 338 }; 339 } else { 340 return { top: 0, left: 0 }; 341 } 342 343 }, 344 345 _cacheMargins: function() { 346 this.margins = { 347 left: (parseInt(this.element.css("marginLeft"),10) || 0), 348 top: (parseInt(this.element.css("marginTop"),10) || 0), 349 right: (parseInt(this.element.css("marginRight"),10) || 0), 350 bottom: (parseInt(this.element.css("marginBottom"),10) || 0) 351 }; 352 }, 353 354 _cacheHelperProportions: function() { 355 this.helperProportions = { 356 width: this.helper.outerWidth(), 357 height: this.helper.outerHeight() 358 }; 359 }, 360 361 _setContainment: function() { 362 363 var o = this.options; 364 if(o.containment == 'parent') o.containment = this.helper[0].parentNode; 365 if(o.containment == 'document' || o.containment == 'window') this.containment = [ 366 o.containment == 'document' ? 0 : $(window).scrollLeft() - this.offset.relative.left - this.offset.parent.left, 367 o.containment == 'document' ? 0 : $(window).scrollTop() - this.offset.relative.top - this.offset.parent.top, 368 (o.containment == 'document' ? 0 : $(window).scrollLeft()) + $(o.containment == 'document' ? document : window).width() - this.helperProportions.width - this.margins.left, 369 (o.containment == 'document' ? 0 : $(window).scrollTop()) + ($(o.containment == 'document' ? document : window).height() || document.body.parentNode.scrollHeight) - this.helperProportions.height - this.margins.top 370 ]; 371 372 if(!(/^(document|window|parent)$/).test(o.containment) && o.containment.constructor != Array) { 373 var c = $(o.containment); 374 var ce = c[0]; if(!ce) return; 375 var co = c.offset(); 376 var over = ($(ce).css("overflow") != 'hidden'); 377 378 this.containment = [ 379 (parseInt($(ce).css("borderLeftWidth"),10) || 0) + (parseInt($(ce).css("paddingLeft"),10) || 0), 380 (parseInt($(ce).css("borderTopWidth"),10) || 0) + (parseInt($(ce).css("paddingTop"),10) || 0),
381 (over ? Math.max(ce.scrollWidth,ce.offsetWidth) : ce.offsetWidth) - (parseInt($(ce).css("borderLeftWidth"),10) || 0) - (parseInt($(ce).css("paddingRight"),10) || 0) - this.helperProportions.width - this.margins.left - this.margins.right, 382 (over ? Math.max(ce.scrollHeight,ce.offsetHeight) : ce.offsetHeight) - (parseInt($(ce).css("borderTopWidth"),10) || 0) - (parseInt($(ce).css("paddingBottom"),10) || 0) - this.helperProportions.height - this.margins.top - this.margins.bottom 383 ]; 384 this.relative_container = c; 385 386 } else if(o.containment.constructor == Array) { 387 this.containment = o.containment; 388 } 389 390 }, 391 392 _convertPositionTo: function(d, pos) { 393 394 if(!pos) pos = this.position; 395 var mod = d == "absolute" ? 1 : -1; 396 var o = this.options, scroll = this.cssPosition == 'absolute' && !(this.scrollParent[0] != document && $.contains(this.scrollParent[0], this.offsetParent[0])) ? this.offsetParent : this.scrollParent, scrollIsRootNode = (/(html|body)/i).test(scroll[0].tagName); 397 398 return { 399 top: ( 400 pos.top // The absolute mouse position 401 + this.offset.relative.top * mod // Only for relative positioned nodes: Relative offset from element to offset parent 402 + this.offset.parent.top * mod // The offsetParent's offset without borders (offset + border) 403 - ( ( this.cssPosition == 'fixed' ? -this.scrollParent.scrollTop() : ( scrollIsRootNode ? 0 : scroll.scrollTop() ) ) * mod) 404 ), 405 left: ( 406 pos.left // The absolute mouse position 407 + this.offset.relative.left * mod // Only for relative positioned nodes: Relative offset from element to offset parent 408 + this.offset.parent.left * mod // The offsetParent's offset without borders (offset + border) 409 - ( ( this.cssPosition == 'fixed' ? -this.scrollParent.scrollLeft() : scrollIsRootNode ? 0 : scroll.scrollLeft() ) * mod) 410 ) 411 }; 412 413 }, 414 415 _generatePosition: function(event) { 416 417 var o = this.options, scroll = this.cssPosition == 'absolute' && !(this.scrollParent[0] != document && $.contains(this.scrollParent[0], this.offsetParent[0])) ? this.offsetParent : this.scrollParent, scrollIsRootNode = (/(html|body)/i).test(scroll[0].tagName); 418 var pageX = event.pageX; 419 var pageY = event.pageY; 420 421 /* 422 * - Position constraining - 423 * Constrain the position to a mix of grid, containment. 424 */ 425 426 if(this.originalPosition) { //If we are not dragging yet, we won't check for options 427 var containment; 428 if(this.containment) { 429 if (this.relative_container){ 430 var co = this.relative_container.offset(); 431 containment = [ this.containment[0] + co.left, 432 this.containment[1] + co.top, 433 this.containment[2] + co.left, 434 this.containment[3] + co.top ]; 435 } 436 else { 437 containment = this.containment; 438 } 439 440 if(event.pageX - this.offset.click.left < containment[0]) pageX = containment[0] + this.offset.click.left; 441 if(event.pageY - this.offset.click.top < containment[1]) pageY = containment[1] + this.offset.click.top; 442 if(event.pageX - this.offset.click.left > containment[2]) pageX = containment[2] + this.offset.click.left; 443 if(event.pageY - this.offset.click.top > containment[3]) pageY = containment[3] + this.offset.click.top; 444 } 445 446 if(o.grid) { 447 //Check for grid elements set to 0 to prevent divide by 0 error causing invalid argument errors in IE (see ticket #6950) 448 var top = o.grid[1] ? this.originalPageY + Math.round((pageY - this.originalPageY) / o.grid[1]) * o.grid[1] : this.originalPageY; 449 pageY = containment ? (!(top - this.offset.click.top < containment[1] || top - this.offset.click.top > containment[3]) ? top : (!(top - this.offset.click.top < containment[1]) ? top - o.grid[1] : top + o.grid[1])) : top; 450 451 var left = o.grid[0] ? this.originalPageX + Math.round((pageX - this.originalPageX) / o.grid[0]) * o.grid[0] : this.originalPageX; 452 pageX = containment ? (!(left - this.offset.click.left < containment[0] || left - this.offset.click.left > containment[2]) ? left : (!(left - this.offset.click.left < containment[0]) ? left - o.grid[0] : left + o.grid[0])) : left; 453 } 454 455 } 456 457 return { 458 top: ( 459 pageY // The absolute mouse position 460 - this.offset.click.top // Click offset (relative to the element) 461 - this.offset.relative.top // Only for relative positioned nodes: Relative offset from element to offset parent 462 - this.offset.parent.top // The offsetParent's offset without borders (offset + border) 463 + ( ( this.cssPosition == 'fixed' ? -this.scrollParent.scrollTop() : ( scrollIsRootNode ? 0 : scroll.scrollTop() ) )) 464 ), 465 left: ( 466 pageX // The absolute mouse position 467 - this.offset.click.left // Click offset (relative to the element) 468 - this.offset.relative.left // Only for relative positioned nodes: Relative offset from element to offset parent 469 - this.offset.parent.left // The offsetParent's offset without borders (offset + border) 470 + ( ( this.cssPosition == 'fixed' ? -this.scrollParent.scrollLeft() : scrollIsRootNode ? 0 : scroll.scrollLeft() )) 471 ) 472 }; 473 474 }, 475 476 _clear: function() { 477 this.helper.removeClass("ui-draggable-dragging"); 478 if(this.helper[0] != this.element[0] && !this.cancelHelperRemoval) this.helper.remove(); 479 //if($.ui.ddmanager) $.ui.ddmanager.current = null; 480 this.helper = null; 481 this.cancelHelperRemoval = false;
482 }, 483 484 // From now on bulk stuff - mainly helpers 485 486 _trigger: function(type, event, ui) { 487 ui = ui || this._uiHash(); 488 $.ui.plugin.call(this, type, [event, ui]); 489 if(type == "drag") this.positionAbs = this._convertPositionTo("absolute"); //The absolute position has to be recalculated after plugins 490 return $.Widget.prototype._trigger.call(this, type, event, ui); 491 }, 492 493 plugins: {}, 494 495 _uiHash: function(event) { 496 return { 497 helper: this.helper, 498 position: this.position, 499 originalPosition: this.originalPosition, 500 offset: this.positionAbs 501 }; 502 } 503 504}); 505 506$.ui.plugin.add("draggable", "connectToSortable", { 507 start: function(event, ui) { 508 509 var inst = $(this).data("draggable"), o = inst.options, 510 uiSortable = $.extend({}, ui, { item: inst.element }); 511 inst.sortables = []; 512 $(o.connectToSortable).each(function() { 513 var sortable = $.data(this, 'sortable'); 514 if (sortable && !sortable.options.disabled) { 515 inst.sortables.push({ 516 instance: sortable, 517 shouldRevert: sortable.options.revert 518 }); 519 sortable.refreshPositions(); // Call the sortable's refreshPositions at drag start to refresh the containerCache since the sortable container cache is used in drag and needs to be up to date (this will ensure it's initialised as well as being kept in step with any changes that might have happened on the page). 520 sortable._trigger("activate", event, uiSortable); 521 } 522 }); 523 524 }, 525 stop: function(event, ui) { 526 527 //If we are still over the sortable, we fake the stop event of the sortable, but also remove helper 528 var inst = $(this).data("draggable"), 529 uiSortable = $.extend({}, ui, { item: inst.element }); 530 531 $.each(inst.sortables, function() { 532 if(this.instance.isOver) { 533 534 this.instance.isOver = 0; 535 536 inst.cancelHelperRemoval = true; //Don't remove the helper in the draggable instance 537 this.instance.cancelHelperRemoval = false; //Remove it in the sortable instance (so sortable plugins like revert still work) 538 539 //The sortable revert is supported, and we have to set a temporary dropped variable on the draggable to support revert: 'valid/invalid' 540 if(this.shouldRevert) this.instance.options.revert = true; 541 542 //Trigger the stop of the sortable 543 this.instance._mouseStop(event); 544 545 this.instance.options.helper = this.instance.options._helper; 546 547 //If the helper has been the original item, restore properties in the sortable 548 if(inst.options.helper == 'original') 549 this.instance.currentItem.css({ top: 'auto', left: 'auto' }); 550 551 } else { 552 this.instance.cancelHelperRemoval = false; //Remove the helper in the sortable instance 553 this.instance._trigger("deactivate", event, uiSortable); 554 } 555 556 }); 557 558 }, 559 drag: function(event, ui) { 560 561 var inst = $(this).data("draggable"), that = this; 562 563 var checkPos = function(o) { 564 var dyClick = this.offset.click.top, dxClick = this.offset.click.left; 565 var helperTop = this.positionAbs.top, helperLeft = this.positionAbs.left; 566 var itemHeight = o.height, itemWidth = o.width; 567 var itemTop = o.top, itemLeft = o.left; 568 569 return $.ui.isOver(helperTop + dyClick, helperLeft + dxClick, itemTop, itemLeft, itemHeight, itemWidth); 570 }; 571 572 $.each(inst.sortables, function(i) { 573 574 var innermostIntersecting = false; 575 var thisSortable = this; 576 //Copy over some variables to allow calling the sortable's native _intersectsWith 577 this.instance.positionAbs = inst.positionAbs; 578 this.instance.helperProportions = inst.helperProportions; 579 this.instance.offset.click = inst.offset.click; 580 581 if(this.instance._intersectsWith(this.instance.containerCache)) { 582 innermostIntersecting = true; 583 $.each(inst.sortables, function () { 584 this.instance.positionAbs = inst.positionAbs; 585 this.instance.helperProportions = inst.helperProportions; 586 this.instance.offset.click = inst.offset.click; 587 if (this != thisSortable 588 && this.instance._intersectsWith(this.instance.containerCache) 589 && $.ui.contains(thisSortable.instance.element[0], this.instance.element[0])) 590 innermostIntersecting = false; 591 return innermostIntersecting; 592 }); 593 } 594 595 596 if(innermostIntersecting) { 597 //If it intersects, we use a little isOver variable and set it once, so our move-in stuff gets fired only once 598 if(!this.instance.isOver) { 599 600 this.instance.isOver = 1; 601 //Now we fake the start of dragging for the sortable instance, 602 //by cloning the list group item, appending it to the sortable and using it as inst.currentItem 603 //We can then fire the start event of the sortable with our passed browser event, and our own helper (so it doesn't create a new one) 604 this.instance.currentItem = $(that).clone().removeAttr('id').appendTo(this.instance.element).data("sortable-item", true); 605 this.instance.options._helper = this.instance.options.helper; //Store helper option to later restore it 606 this.instance.options.helper = function() { return ui.helper[0]; }; 607 608 event.target = this.instance.currentItem[0]; 609 this.instance._mouseCapture(event, true); 610 this.instance._mouseStart(event, true, true); 611
612 //Because the browser event is way off the new appended portlet, we modify a couple of variables to reflect the changes 613 this.instance.offset.click.top = inst.offset.click.top; 614 this.instance.offset.click.left = inst.offset.click.left; 615 this.instance.offset.parent.left -= inst.offset.parent.left - this.instance.offset.parent.left; 616 this.instance.offset.parent.top -= inst.offset.parent.top - this.instance.offset.parent.top; 617 618 inst._trigger("toSortable", event); 619 inst.dropped = this.instance.element; //draggable revert needs that 620 //hack so receive/update callbacks work (mostly) 621 inst.currentItem = inst.element; 622 this.instance.fromOutside = inst; 623 624 } 625 626 //Provided we did all the previous steps, we can fire the drag event of the sortable on every draggable drag, when it intersects with the sortable 627 if(this.instance.currentItem) this.instance._mouseDrag(event); 628 629 } else { 630 631 //If it doesn't intersect with the sortable, and it intersected before, 632 //we fake the drag stop of the sortable, but make sure it doesn't remove the helper by using cancelHelperRemoval 633 if(this.instance.isOver) { 634 635 this.instance.isOver = 0; 636 this.instance.cancelHelperRemoval = true; 637 638 //Prevent reverting on this forced stop 639 this.instance.options.revert = false; 640 641 // The out event needs to be triggered independently 642 this.instance._trigger('out', event, this.instance._uiHash(this.instance)); 643 644 this.instance._mouseStop(event, true); 645 this.instance.options.helper = this.instance.options._helper; 646 647 //Now we remove our currentItem, the list group clone again, and the placeholder, and animate the helper back to it's original size 648 this.instance.currentItem.remove(); 649 if(this.instance.placeholder) this.instance.placeholder.remove(); 650 651 inst._trigger("fromSortable", event); 652 inst.dropped = false; //draggable revert needs that 653 } 654 655 }; 656 657 }); 658 659 } 660}); 661 662$.ui.plugin.add("draggable", "cursor", { 663 start: function(event, ui) { 664 var t = $('body'), o = $(this).data('draggable').options; 665 if (t.css("cursor")) o._cursor = t.css("cursor"); 666 t.css("cursor", o.cursor); 667 }, 668 stop: function(event, ui) { 669 var o = $(this).data('draggable').options; 670 if (o._cursor) $('body').css("cursor", o._cursor); 671 } 672}); 673 674$.ui.plugin.add("draggable", "opacity", { 675 start: function(event, ui) { 676 var t = $(ui.helper), o = $(this).data('draggable').options; 677 if(t.css("opacity")) o._opacity = t.css("opacity"); 678 t.css('opacity', o.opacity); 679 }, 680 stop: function(event, ui) { 681 var o = $(this).data('draggable').options; 682 if(o._opacity) $(ui.helper).css('opacity', o._opacity); 683 } 684}); 685 686$.ui.plugin.add("draggable", "scroll", { 687 start: function(event, ui) { 688 var i = $(this).data("draggable"); 689 if(i.scrollParent[0] != document && i.scrollParent[0].tagName != 'HTML') i.overflowOffset = i.scrollParent.offset(); 690 }, 691 drag: function(event, ui) { 692 693 var i = $(this).data("draggable"), o = i.options, scrolled = false; 694 695 if(i.scrollParent[0] != document && i.scrollParent[0].tagName != 'HTML') { 696 697 if(!o.axis || o.axis != 'x') { 698 if((i.overflowOffset.top + i.scrollParent[0].offsetHeight) - event.pageY < o.scrollSensitivity) 699 i.scrollParent[0].scrollTop = scrolled = i.scrollParent[0].scrollTop + o.scrollSpeed; 700 else if(event.pageY - i.overflowOffset.top < o.scrollSensitivity) 701 i.scrollParent[0].scrollTop = scrolled = i.scrollParent[0].scrollTop - o.scrollSpeed; 702 } 703 704 if(!o.axis || o.axis != 'y') { 705 if((i.overflowOffset.left + i.scrollParent[0].offsetWidth) - event.pageX < o.scrollSensitivity) 706 i.scrollParent[0].scrollLeft = scrolled = i.scrollParent[0].scrollLeft + o.scrollSpeed; 707 else if(event.pageX - i.overflowOffset.left < o.scrollSensitivity) 708 i.scrollParent[0].scrollLeft = scrolled = i.scrollParent[0].scrollLeft - o.scrollSpeed; 709 } 710 711 } else { 712 713 if(!o.axis || o.axis != 'x') { 714 if(event.pageY - $(document).scrollTop() < o.scrollSensitivity) 715 scrolled = $(document).scrollTop($(document).scrollTop() - o.scrollSpeed); 716 else if($(window).height() - (event.pageY - $(document).scrollTop()) < o.scrollSensitivity) 717 scrolled = $(document).scrollTop($(document).scrollTop() + o.scrollSpeed); 718 } 719 720 if(!o.axis || o.axis != 'y') { 721 if(event.pageX - $(document).scrollLeft() < o.scrollSensitivity) 722 scrolled = $(document).scrollLeft($(document).scrollLeft() - o.scrollSpeed); 723 else if($(window).width() - (event.pageX - $(document).scrollLeft()) < o.scrollSensitivity) 724 scrolled = $(document).scrollLeft($(document).scrollLeft() + o.scrollSpeed); 725 } 726 727 } 728 729 if(scrolled !== false && $.ui.ddmanager && !o.dropBehaviour) 730 $.ui.ddmanager.prepareOffsets(i, event); 731 732 } 733}); 734 735$.ui.plugin.add("draggable", "snap", { 736 start: function(event, ui) { 737 738 var i = $(this).data("draggable"), o = i.options; 739 i.snapElements = []; 740 741 $(o.snap.constructor != String ? ( o.snap.items || ':data(draggable)' ) : o.snap).each(function() { 742 var $t = $(this); var $o = $t.offset(); 743 if(this != i.element[0]) i.snapElements.push({ 744 item: this, 745 width: $t.outerWidth(), height: $t.outerHeight(), 746 top: $o.top, left: $o.left 747 }); 748 }); 749 750 }, 751 drag: function(event, ui) { 752 753 var inst = $(this).data("draggable"), o = inst.options; 754 var d = o.snapTolerance; 755 756 var x1 = ui.offset.left, x2 = x1 + inst.helperProportions.width, 757 y1 = ui.offset.top, y2 = y1 + inst.helperProportions.height; 758 759 for (var i = inst.snapElements.length - 1; i >= 0; i--){ 760 761 var l = inst.snapElements[i].left, r = l + inst.snapElements[i].width, 762 t = inst.snapElements[i].top, b = t + inst.snapElements[i].height; 763 764 //Yes, I know, this is insane ;) 765 if(!((l-d < x1 && x1 < r+d && t-d < y1 && y1 < b+d) || (l-d < x1 && x1 < r+d && t-d < y2 && y2 < b+d) || (l-d < x2 && x2 < r+d && t-d < y1 && y1 < b+d) || (l-d < x2 && x2 < r+d && t-d < y2 && y2 < b+d))) { 766 if(inst.snapElements[i].snapping) (inst.options.snap.release && inst.options.snap.release.call(inst.element, event, $.extend(inst._uiHash(), { snapItem: inst.snapElements[i].item }))); 767 inst.snapElements[i].snapping = false;
768 continue; 769 } 770 771 if(o.snapMode != 'inner') { 772 var ts = Math.abs(t - y2) <= d; 773 var bs = Math.abs(b - y1) <= d; 774 var ls = Math.abs(l - x2) <= d; 775 var rs = Math.abs(r - x1) <= d; 776 if(ts) ui.position.top = inst._convertPositionTo("relative", { top: t - inst.helperProportions.height, left: 0 }).top - inst.margins.top; 777 if(bs) ui.position.top = inst._convertPositionTo("relative", { top: b, left: 0 }).top - inst.margins.top; 778 if(ls) ui.position.left = inst._convertPositionTo("relative", { top: 0, left: l - inst.helperProportions.width }).left - inst.margins.left; 779 if(rs) ui.position.left = inst._convertPositionTo("relative", { top: 0, left: r }).left - inst.margins.left; 780 } 781 782 var first = (ts || bs || ls || rs); 783 784 if(o.snapMode != 'outer') { 785 var ts = Math.abs(t - y1) <= d; 786 var bs = Math.abs(b - y2) <= d; 787 var ls = Math.abs(l - x1) <= d; 788 var rs = Math.abs(r - x2) <= d; 789 if(ts) ui.position.top = inst._convertPositionTo("relative", { top: t, left: 0 }).top - inst.margins.top; 790 if(bs) ui.position.top = inst._convertPositionTo("relative", { top: b - inst.helperProportions.height, left: 0 }).top - inst.margins.top; 791 if(ls) ui.position.left = inst._convertPositionTo("relative", { top: 0, left: l }).left - inst.margins.left; 792 if(rs) ui.position.left = inst._convertPositionTo("relative", { top: 0, left: r - inst.helperProportions.width }).left - inst.margins.left; 793 } 794 795 if(!inst.snapElements[i].snapping && (ts || bs || ls || rs || first)) 796 (inst.options.snap.snap && inst.options.snap.snap.call(inst.element, event, $.extend(inst._uiHash(), { snapItem: inst.snapElements[i].item }))); 797 inst.snapElements[i].snapping = (ts || bs || ls || rs || first); 798 799 }; 800 801 } 802}); 803 804$.ui.plugin.add("draggable", "stack", { 805 start: function(event, ui) { 806 807 var o = $(this).data("draggable").options; 808 809 var group = $.makeArray($(o.stack)).sort(function(a,b) { 810 return (parseInt($(a).css("zIndex"),10) || 0) - (parseInt($(b).css("zIndex"),10) || 0); 811 }); 812 if (!group.length) { return; } 813 814 var min = parseInt(group[0].style.zIndex) || 0; 815 $(group).each(function(i) { 816 this.style.zIndex = min + i; 817 }); 818 819 this[0].style.zIndex = min + group.length; 820 821 } 822}); 823 824$.ui.plugin.add("draggable", "zIndex", { 825 start: function(event, ui) { 826 var t = $(ui.helper), o = $(this).data("draggable").options; 827 if(t.css("zIndex")) o._zIndex = t.css("zIndex"); 828 t.css('zIndex', o.zIndex); 829 }, 830 stop: function(event, ui) { 831 var o = $(this).data("draggable").options; 832 if(o._zIndex) $(ui.helper).css('zIndex', o._zIndex); 833 } 834}); 835 836})(jQuery);
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.