1/*! 2 * jQuery blockUI plugin 3 * Version 2.33 (29-MAR-2010) 4 * @requires jQuery v1.2.3 or later 5 * 6 * Examples at: http://malsup.com/jquery/block/ 7 * Copyright (c) 2007-2008 M. Alsup 8 * Dual licensed under the MIT and GPL licenses: 9 * http://www.opensource.org/licenses/mit-license.php 10 * http://www.gnu.org/licenses/gpl.html 11 * 12 * Thanks to Amir-Hossein Sobhi for some excellent contributions! 13 */ 14 15;(function($) { 16 17if (/1\.(0|1|2)\.(0|1|2)/.test($.fn.jquery) || /^1.1/.test($.fn.jquery)) { 18 alert('blockUI requires jQuery v1.2.3 or later! You are using v' + $.fn.jquery); 19 return; 20} 21 22$.fn._fadeIn = $.fn.fadeIn; 23 24var noOp = function() {}; 25 26// this bit is to ensure we don't call setExpression when we shouldn't (with extra muscle to handle 27// retarded userAgent strings on Vista) 28var mode = document.documentMode || 0; 29var setExpr = $.browser.msie && (($.browser.version < 8 && !mode) || mode < 8); 30var ie6 = $.browser.msie && /MSIE 6.0/.test(navigator.userAgent) && !mode; 31 32// global $ methods for blocking/unblocking the entire page 33$.blockUI = function(opts) { install(window, opts); }; 34$.unblockUI = function(opts) { remove(window, opts); }; 35 36// convenience method for quick growl-like notifications (http://www.google.com/search?q=growl) 37$.growlUI = function(title, message, timeout, onClose) { 38 var $m = $('<div class="growlUI"></div>'); 39 if (title) $m.append('<h1>'+title+'</h1>'); 40 if (message) $m.append('<h2>'+message+'</h2>'); 41 if (timeout == undefined) timeout = 3000; 42 $.blockUI({ 43 message: $m, fadeIn: 700, fadeOut: 1000, centerY: false, 44 timeout: timeout, showOverlay: false, 45 onUnblock: onClose, 46 css: $.blockUI.defaults.growlCSS 47 }); 48}; 49 50// plugin method for blocking element content 51$.fn.block = function(opts) { 52 return this.unblock({ fadeOut: 0 }).each(function() { 53 if ($.css(this,'position') == 'static') 54 this.style.position = 'relative'; 55 if ($.browser.msie) 56 this.style.zoom = 1; // force 'hasLayout' 57 install(this, opts); 58 }); 59}; 60 61// plugin method for unblocking element content 62$.fn.unblock = function(opts) { 63 return this.each(function() { 64 remove(this, opts); 65 }); 66}; 67 68$.blockUI.version = 2.33; // 2nd generation blocking at no extra cost! 69 70// override these in your code to change the default behavior and style 71$.blockUI.defaults = { 72 // message displayed when blocking (use null for no message) 73 message: '<h1>Please wait...</h1>', 74 75 title: null, // title string; only used when theme == true 76 draggable: true, // only used when theme == true (requires jquery-ui.js to be loaded) 77 78 theme: false, // set to true to use with jQuery UI themes 79 80 // styles for the message when blocking; if you wish to disable 81 // these and use an external stylesheet then do this in your code: 82 // $.blockUI.defaults.css = {}; 83 css: { 84 padding: 0, 85 margin: 0, 86 width: '30%', 87 top: '40%', 88 left: '35%', 89 textAlign: 'center', 90 color: '#000', 91 border: '3px solid #aaa', 92 backgroundColor:'#fff', 93 cursor: 'wait' 94 }, 95 96 // minimal style set used when themes are used 97 themedCSS: { 98 width: '30%', 99 top: '40%', 100 left: '35%' 101 }, 102 103 // styles for the overlay 104 overlayCSS: { 105 backgroundColor: '#000', 106 opacity: 0.6, 107 cursor: null 108 }, 109 110 // styles applied when using $.growlUI 111 growlCSS: { 112 width: '350px', 113 top: '10px', 114 left: '', 115 right: '10px', 116 border: 'none', 117 padding: '5px', 118 opacity: 0.6, 119 cursor: 'default', 120 color: '#fff', 121 backgroundColor: '#000', 122 '-webkit-border-radius': '10px', 123 '-moz-border-radius': '10px', 124 'border-radius': '10px' 125 }, 126 127 // IE issues: 'about:blank' fails on HTTPS and javascript:false is s-l-o-w 128 // (hat tip to Jorge H. N. de Vasconcelos) 129 iframeSrc: /^https/i.test(window.location.href || '') ? 'javascript:false' : 'about:blank', 130 131 // force usage of iframe in non-IE browsers (handy for blocking applets) 132 forceIframe: false, 133 134 // z-index for the blocking overlay 135 baseZ: 1000, 136 137 // set these to true to have the message automatically centered 138 centerX: true, // <-- only effects element blocking (page block controlled via css above) 139 centerY: true, 140 141 // allow body element to be stetched in ie6; this makes blocking look better 142 // on "short" pages. disable if you wish to prevent changes to the body height 143 allowBodyStretch: true, 144 145 // enable if you want key and mouse events to be disabled for content that is blocked 146 bindEvents: true, 147 148 // be default blockUI will supress tab navigation from leaving blocking content 149 // (if bindEvents is true) 150 constrainTabKey: true, 151 152 // fadeIn time in millis; set to 0 to disable fadeIn on block 153 fadeIn: 200, 154 155 // fadeOut time in millis; set to 0 to disable fadeOut on unblock 156 fadeOut: 400, 157 158 // time in millis to wait before auto-unblocking; set to 0 to disable auto-unblock
159 timeout: 0, 160 161 // disable if you don't want to show the overlay 162 showOverlay: true, 163 164 // if true, focus will be placed in the first available input field when 165 // page blocking 166 focusInput: true, 167 168 // suppresses the use of overlay styles on FF/Linux (due to performance issues with opacity) 169 applyPlatformOpacityRules: true, 170 171 // callback method invoked when fadeIn has completed and blocking message is visible 172 onBlock: null, 173 174 // callback method invoked when unblocking has completed; the callback is 175 // passed the element that has been unblocked (which is the window object for page 176 // blocks) and the options that were passed to the unblock call: 177 // onUnblock(element, options) 178 onUnblock: null, 179 180 // don't ask; if you really must know: http://groups.google.com/group/jquery-en/browse_thread/thread/36640a8730503595/2f6a79a77a78e493#2f6a79a77a78e493 181 quirksmodeOffsetHack: 4 182}; 183 184// private data and functions follow... 185 186var pageBlock = null; 187var pageBlockEls = []; 188 189function install(el, opts) { 190 var full = (el == window); 191 var msg = opts && opts.message !== undefined ? opts.message : undefined; 192 opts = $.extend({}, $.blockUI.defaults, opts || {}); 193 opts.overlayCSS = $.extend({}, $.blockUI.defaults.overlayCSS, opts.overlayCSS || {}); 194 var css = $.extend({}, $.blockUI.defaults.css, opts.css || {}); 195 var themedCSS = $.extend({}, $.blockUI.defaults.themedCSS, opts.themedCSS || {}); 196 msg = msg === undefined ? opts.message : msg; 197 198 // remove the current block (if there is one) 199 if (full && pageBlock) 200 remove(window, {fadeOut:0}); 201 202 // if an existing element is being used as the blocking content then we capture 203 // its current place in the DOM (and current display style) so we can restore 204 // it when we unblock 205 if (msg && typeof msg != 'string' && (msg.parentNode || msg.jquery)) { 206 var node = msg.jquery ? msg[0] : msg; 207 var data = {}; 208 $(el).data('blockUI.history', data); 209 data.el = node; 210 data.parent = node.parentNode; 211 data.display = node.style.display; 212 data.position = node.style.position; 213 if (data.parent) 214 data.parent.removeChild(node); 215 } 216 217 var z = opts.baseZ; 218 219 // blockUI uses 3 layers for blocking, for simplicity they are all used on every platform; 220 // layer1 is the iframe layer which is used to supress bleed through of underlying content 221 // layer2 is the overlay layer which has opacity and a wait cursor (by default) 222 // layer3 is the message content that is displayed while blocking 223 224 var lyr1 = ($.browser.msie || opts.forceIframe) 225 ? $('<iframe class="blockUI" style="z-index:'+ (z++) +';display:none;border:none;margin:0;padding:0;position:absolute;width:100%;height:100%;top:0;left:0" src="'+opts.iframeSrc+'"></iframe>') 226 : $('<div class="blockUI" style="display:none"></div>'); 227 var lyr2 = $('<div class="blockUI blockOverlay" style="z-index:'+ (z++) +';display:none;border:none;margin:0;padding:0;width:100%;height:100%;top:0;left:0"></div>'); 228 229 var lyr3, s; 230 if (opts.theme && full) { 231 s = '<div class="blockUI blockMsg blockPage ui-dialog ui-widget ui-corner-all" style="z-index:'+z+';display:none;position:fixed">' + 232 '<div class="ui-widget-header ui-dialog-titlebar blockTitle">'+(opts.title || ' ')+'</div>' + 233 '<div class="ui-widget-content ui-dialog-content"></div>' + 234 '</div>'; 235 } 236 else if (opts.theme) { 237 s = '<div class="blockUI blockMsg blockElement ui-dialog ui-widget ui-corner-all" style="z-index:'+z+';display:none;position:absolute">' + 238 '<div class="ui-widget-header ui-dialog-titlebar blockTitle">'+(opts.title || ' ')+'</div>' + 239 '<div class="ui-widget-content ui-dialog-content"></div>' + 240 '</div>'; 241 } 242 else if (full) { 243 s = '<div class="blockUI blockMsg blockPage" style="z-index:'+z+';display:none;position:fixed"></div>'; 244 } 245 else { 246 s = '<div class="blockUI blockMsg blockElement" style="z-index:'+z+';display:none;position:absolute"></div>'; 247 } 248 lyr3 = $(s); 249 250 // if we have a message, style it 251 if (msg) { 252 if (opts.theme) { 253 lyr3.css(themedCSS); 254 lyr3.addClass('ui-widget-content'); 255 } 256 else 257 lyr3.css(css); 258 } 259 260 // style the overlay 261 if (!opts.applyPlatformOpacityRules || !($.browser.mozilla && /Linux/.test(navigator.platform))) 262 lyr2.css(opts.overlayCSS); 263 lyr2.css('position', full ? 'fixed' : 'absolute'); 264 265 // make iframe layer transparent in IE 266 if ($.browser.msie || opts.forceIframe) 267 lyr1.css('opacity',0.0); 268 269 //$([lyr1[0],lyr2[0],lyr3[0]]).appendTo(full ? 'body' : el); 270 var layers = [lyr1,lyr2,lyr3], $par = full ? $('body') : $(el); 271 $.each(layers, function() { 272 this.appendTo($par); 273 }); 274 275 if (opts.theme && opts.draggable && $.fn.draggable) { 276 lyr3.draggable({ 277 handle: '.ui-dialog-titlebar', 278 cancel: 'li' 279 }); 280 } 281 282 // ie7 must use absolute positioning in quirks mode and to account for activex issues (when scrolling) 283 var expr = setExpr && (!$.boxModel || $('object,embed', full ? null : el).length > 0); 284 if (ie6 || expr) { 285 // give body 100% height 286 if (full && opts.allowBodyStretch && $.boxModel) 287 $('html,body').css('height','100%'); 288 289 // fix ie6 issue when blocked element has a border width 290 if ((ie6 || !$.boxModel) && !full) { 291 var t = sz(el,'borderTopWidth'), l = sz(el,'borderLeftWidth'); 292 var fixT = t ? '(0 - '+t+')' : 0; 293 var fixL = l ? '(0 - '+l+')' : 0; 294 } 295 296 // simulate fixed position 297 $.each([lyr1,lyr2,lyr3], function(i,o) { 298 var s = o[0].style; 299 s.position = 'absolute'; 300 if (i < 2) { 301 full ? s.setExpression('height','Math.max(document.body.scrollHeight, document.body.offsetHeight) - (jQuery.boxModel?0:'+opts.quir
301ksmodeOffsetHack+') + "px"') 302 : s.setExpression('height','this.parentNode.offsetHeight + "px"'); 303 full ? s.setExpression('width','jQuery.boxModel && document.documentElement.clientWidth || document.body.clientWidth + "px"') 304 : s.setExpression('width','this.parentNode.offsetWidth + "px"'); 305 if (fixL) s.setExpression('left', fixL); 306 if (fixT) s.setExpression('top', fixT); 307 } 308 else if (opts.centerY) { 309 if (full) s.setExpression('top','(document.documentElement.clientHeight || document.body.clientHeight) / 2 - (this.offsetHeight / 2) + (blah = document.documentElement.scrollTop ? document.documentElement.scrollTop : document.body.scrollTop) + "px"'); 310 s.marginTop = 0; 311 } 312 else if (!opts.centerY && full) { 313 var top = (opts.css && opts.css.top) ? parseInt(opts.css.top) : 0; 314 var expression = '((document.documentElement.scrollTop ? document.documentElement.scrollTop : document.body.scrollTop) + '+top+') + "px"'; 315 s.setExpression('top',expression); 316 } 317 }); 318 } 319 320 // show the message 321 if (msg) { 322 if (opts.theme) 323 lyr3.find('.ui-widget-content').append(msg); 324 else 325 lyr3.append(msg); 326 if (msg.jquery || msg.nodeType) 327 $(msg).show(); 328 } 329 330 if (($.browser.msie || opts.forceIframe) && opts.showOverlay) 331 lyr1.show(); // opacity is zero 332 if (opts.fadeIn) { 333 var cb = opts.onBlock ? opts.onBlock : noOp; 334 var cb1 = (opts.showOverlay && !msg) ? cb : noOp; 335 var cb2 = msg ? cb : noOp; 336 if (opts.showOverlay) 337 lyr2._fadeIn(opts.fadeIn, cb1); 338 if (msg) 339 lyr3._fadeIn(opts.fadeIn, cb2); 340 } 341 else { 342 if (opts.showOverlay) 343 lyr2.show(); 344 if (msg) 345 lyr3.show(); 346 if (opts.onBlock) 347 opts.onBlock(); 348 } 349 350 // bind key and mouse events 351 bind(1, el, opts); 352 353 if (full) { 354 pageBlock = lyr3[0]; 355 pageBlockEls = $(':input:enabled:visible',pageBlock); 356 if (opts.focusInput) 357 setTimeout(focus, 20); 358 } 359 else 360 center(lyr3[0], opts.centerX, opts.centerY); 361 362 if (opts.timeout) { 363 // auto-unblock 364 var to = setTimeout(function() { 365 full ? $.unblockUI(opts) : $(el).unblock(opts); 366 }, opts.timeout); 367 $(el).data('blockUI.timeout', to); 368 } 369}; 370 371// remove the block 372function remove(el, opts) { 373 var full = (el == window); 374 var $el = $(el); 375 var data = $el.data('blockUI.history'); 376 var to = $el.data('blockUI.timeout'); 377 if (to) { 378 clearTimeout(to); 379 $el.removeData('blockUI.timeout'); 380 } 381 opts = $.extend({}, $.blockUI.defaults, opts || {}); 382 bind(0, el, opts); // unbind events 383 384 var els; 385 if (full) // crazy selector to handle odd field errors in ie6/7 386 els = $('body').children().filter('.blockUI').add('body > .blockUI'); 387 else 388 els = $('.blockUI', el); 389 390 if (full) 391 pageBlock = pageBlockEls = null; 392 393 if (opts.fadeOut) { 394 els.fadeOut(opts.fadeOut); 395 setTimeout(function() { reset(els,data,opts,el); }, opts.fadeOut); 396 } 397 else 398 reset(els, data, opts, el); 399}; 400 401// move blocking element back into the DOM where it started 402function reset(els,data,opts,el) { 403 els.each(function(i,o) { 404 // remove via DOM calls so we don't lose event handlers 405 if (this.parentNode) 406 this.parentNode.removeChild(this); 407 }); 408 409 if (data && data.el) { 410 data.el.style.display = data.display; 411 data.el.style.position = data.position; 412 if (data.parent) 413 data.parent.appendChild(data.el); 414 $(el).removeData('blockUI.history'); 415 } 416 417 if (typeof opts.onUnblock == 'function') 418 opts.onUnblock(el,opts); 419}; 420 421// bind/unbind the handler 422function bind(b, el, opts) { 423 var full = el == window, $el = $(el); 424 425 // don't bother unbinding if there is nothing to unbind 426 if (!b && (full && !pageBlock || !full && !$el.data('blockUI.isBlocked'))) 427 return; 428 if (!full) 429 $el.data('blockUI.isBlocked', b); 430 431 // don't bind events when overlay is not in use or if bindEvents is false 432 if (!opts.bindEvents || (b && !opts.showOverlay)) 433 return; 434 435 // bind anchors and inputs for mouse and key events 436 var events = 'mousedown mouseup keydown keypress'; 437 b ? $(document).bind(events, opts, handler) : $(document).unbind(events, handler); 438 439// former impl... 440// var $e = $('a,:input'); 441// b ? $e.bind(events, opts, handler) : $e.unbind(events, handler); 442}; 443 444// event handler to suppress keyboard/mouse events when blocking 445function handler(e) { 446 // allow tab navigation (conditionally) 447 if (e.keyCode && e.keyCode == 9) { 448 if (pageBlock && e.data.constrainTabKey) { 449 var els = pageBlockEls; 450 var fwd = !e.shiftKey && e.target == els[els.length-1]; 451 var back = e.shiftKey && e.target == els[0]; 452 if (fwd || back) { 453 setTimeout(function(){focus(back)},10); 454 return false;
455 } 456 } 457 } 458 // allow events within the message content 459 if ($(e.target).parents('div.blockMsg').length > 0) 460 return true; 461 462 // allow events for content that is not being blocked 463 return $(e.target).parents().children().filter('div.blockUI').length == 0; 464}; 465 466function focus(back) { 467 if (!pageBlockEls) 468 return; 469 var e = pageBlockEls[back===true ? pageBlockEls.length-1 : 0]; 470 if (e) 471 e.focus(); 472}; 473 474function center(el, x, y) { 475 var p = el.parentNode, s = el.style; 476 var l = ((p.offsetWidth - el.offsetWidth)/2) - sz(p,'borderLeftWidth'); 477 var t = ((p.offsetHeight - el.offsetHeight)/2) - sz(p,'borderTopWidth'); 478 if (x) s.left = l > 0 ? (l+'px') : '0'; 479 if (y) s.top = t > 0 ? (t+'px') : '0'; 480}; 481 482function sz(el, p) { 483 return parseInt($.css(el,p))||0; 484}; 485 486})(jQuery);
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