js2/mwEmbed/jquery/jquery.ui/ui/ui.sortable.js

   1 /*
   2  * jQuery UI Sortable 1.7.1
   3  *
   4  * Copyright (c) 2009 AUTHORS.txt (http://jqueryui.com/about)
   5  * Dual licensed under the MIT (MIT-LICENSE.txt)
   6  * and GPL (GPL-LICENSE.txt) licenses.
   7  *
   8  * http://docs.jquery.com/UI/Sortables
   9  *
  10  * Depends:
  11  *      ui.core.js
  12  */
  13 (function($) {
  14
  15 $.widget("ui.sortable", $.extend({}, $.ui.mouse, {
  16         _init: function() {
  17
  18                 var o = this.options;
  19                 this.containerCache = {};
  20                 this.element.addClass("ui-sortable");
  21
  22                 //Get the items
  23                 this.refresh();
  24
  25                 //Let's determine if the items are floating
  26                 this.floating = this.items.length ? (/left|right/).test(this.items[0].item.css('float')) : false;
  27
  28                 //Let's determine the parent's offset
  29                 this.offset = this.element.offset();
  30
  31                 //Initialize mouse events for interaction
  32                 this._mouseInit();
  33
  34         },
  35
  36         destroy: function() {
  37                 this.element
  38                         .removeClass("ui-sortable ui-sortable-disabled")
  39                         .removeData("sortable")
  40                         .unbind(".sortable");
  41                 this._mouseDestroy();
  42
  43                 for ( var i = this.items.length - 1; i >= 0; i-- )
  44                         this.items[i].item.removeData("sortable-item");
  45         },
  46
  47         _mouseCapture: function(event, overrideHandle) {
  48
  49                 if (this.reverting) {
  50                         return false;
  51                 }
  52
  53                 if(this.options.disabled || this.options.type == 'static') return false;
  54
  55                 //We have to refresh the items data once first
  56                 this._refreshItems(event);
  57
  58                 //Find out if the clicked node (or one of its parents) is a actual item in this.items
  59                 var currentItem = null, self = this, nodes = $(event.target).parents().each(function() {
  60                         if($.data(this, 'sortable-item') == self) {
  61                                 currentItem = $(this);
  62                                 return false;
  63                         }
  64                 });
  65                 if($.data(event.target, 'sortable-item') == self) currentItem = $(event.target);
  66
  67                 if(!currentItem) return false;
  68                 if(this.options.handle && !overrideHandle) {
  69                         var validHandle = false;
  70
  71                         $(this.options.handle, currentItem).find("*").andSelf().each(function() { if(this == event.target) validHandle = true; });
  72                         if(!validHandle) return false;
  73                 }
  74
  75                 this.currentItem = currentItem;
  76                 this._removeCurrentsFromItems();
  77                 return true;
  78
  79         },
  80
  81         _mouseStart: function(event, overrideHandle, noActivation) {
  82
  83                 var o = this.options, self = this;
  84                 this.currentContainer = this;
  85
  86                 //We only need to call refreshPositions, because the refreshItems call has been moved to mouseCapture
  87                 this.refreshPositions();
  88
  89                 //Create and append the visible helper
  90                 this.helper = this._createHelper(event);
  91
  92                 //Cache the helper size
  93                 this._cacheHelperProportions();
  94
  95                 /*
  96                  * - Position generation -
  97                  * This block generates everything position related - it's the core of draggables.
  98                  */
  99
 100                 //Cache the margins of the original element
 101                 this._cacheMargins();
 102
 103                 //Get the next scrolling parent
 104                 this.scrollParent = this.helper.scrollParent();
 105
 106                 //The element's absolute position on the page minus margins
 107                 this.offset = this.currentItem.offset();
 108                 this.offset = {
 109                         top: this.offset.top - this.margins.top,
 110                         left: this.offset.left - this.margins.left
 111                 };
 112
 113                 // Only after we got the offset, we can change the helper's position to absolute
 114                 // TODO: Still need to figure out a way to make relative sorting possible
 115                 this.helper.css("position", "absolute");
 116                 this.cssPosition = this.helper.css("position");
 117
 118                 $.extend(this.offset, {
 119                         click: { //Where the click happened, relative to the element
 120                                 left: event.pageX - this.offset.left,
 121                                 top: event.pageY - this.offset.top
 122                         },
 123                         parent: this._getParentOffset(),
 124                         relative: this._getRelativeOffset() //This is a relative to absolute position minus the actual position calculation - only used for relative positioned helper
 125                 });
 126
 127                 //Generate the original position
 128                 this.originalPosition = this._generatePosition(event);
 129                 this.originalPageX = event.pageX;
 130                 this.originalPageY = event.pageY;
 131
 132                 //Adjust the mouse offset relative to the helper if 'cursorAt' is supplied
 133                 if(o.cursorAt)
 134                         this._adjustOffsetFromHelper(o.cursorAt);
 135
 136                 //Cache the former DOM position
 137                 this.domPosition = { prev: this.currentItem.prev()[0], parent: this.currentItem.parent()[0] };
 138
 139                 //If the helper is not the original, hide the original so it's not playing any role during the drag, won't cause anything bad this way
 140                 if(this.helper[0] != this.currentItem[0]) {
 141                         this.currentItem.hide();
 142                 }
 143
 144                 //Create the placeholder
 145                 this._createPlaceholder();
 146
 147                 //Set a containment if given in the options
 148                 if(o.containment)
 149                         this._setContainment();
 150
 151                 if(o.cursor) { // cursor option
 152                         if ($('body').css("cursor")) this._storedCursor = $('body').css("cursor");
 153                         $('body').css("cursor", o.cursor);
 154                 }
 155
 156                 if(o.opacity) { // opacity option
 157                         if (this.helper.css("opacity")) this._storedOpacity = this.helper.css("opacity");
 158                         this.helper.css("opacity", o.opacity);
 159                 }
 160
 161                 if(o.zIndex) { // zIndex option
 162                         if (this.helper.css("zIndex")) this._storedZIndex = this.helper.css("zIndex");
 163                         this.helper.css("zIndex", o.zIndex);
 164                 }
 165
 166                 //Prepare scrolling
 167                 if(this.scrollParent[0] != document && this.scrollParent[0].tagName != 'HTML')
 168                         this.overflowOffset = this.scrollParent.offset();
 169
 170                 //Call callbacks
 171                 this._trigger("start", event, this._uiHash());
 172
 173                 //Recache the helper size
 174                 if(!this._preserveHelperProportions)
 175                         this._cacheHelperProportions();
 176
 177
 178                 //Post 'activate' events to possible containers
 179                 if(!noActivation) {
 180                          for (var i = this.containers.length - 1; i >= 0; i--) { this.containers[i]._trigger("activate", event, self._uiHash(this)); }
 181                 }
 182
 183                 //Prepare possible droppables
 184                 if($.ui.ddmanager)
 185                         $.ui.ddmanager.current = this;
 186
 187                 if ($.ui.ddmanager && !o.dropBehaviour)
 188                         $.ui.ddmanager.prepareOffsets(this, event);
 189
 190                 this.dragging = true;
 191
 192                 this.helper.addClass("ui-sortable-helper");
 193                 this._mouseDrag(event); //Execute the drag once - this causes the helper not to be visible before getting its correct position
 194                 return true;
 195
 196         },
 197
 198         _mouseDrag: function(event) {
 199
 200                 //Compute the helpers position
 201                 this.position = this._generatePosition(event);
 202                 this.positionAbs = this._convertPositionTo("absolute");
 203
 204                 if (!this.lastPositionAbs) {
 205                         this.lastPositionAbs = this.positionAbs;
 206                 }
 207
 208                 //Do scrolling
 209                 if(this.options.scroll) {
 210                         var o = this.options, scrolled = false;
 211                         if(this.scrollParent[0] != document && this.scrollParent[0].tagName != 'HTML') {
 212
 213                                 if((this.overflowOffset.top + this.scrollParent[0].offsetHeight) - event.pageY < o.scrollSensitivity)
 214                                         this.scrollParent[0].scrollTop = scrolled = this.scrollParent[0].scrollTop + o.scrollSpeed;
 215                                 else if(event.pageY - this.overflowOffset.top < o.scrollSensitivity)
 216                                         this.scrollParent[0].scrollTop = scrolled = this.scrollParent[0].scrollTop - o.scrollSpeed;
 217
 218                                 if((this.overflowOffset.left + this.scrollParent[0].offsetWidth) - event.pageX < o.scrollSensitivity)
 219                                         this.scrollParent[0].scrollLeft = scrolled = this.scrollParent[0].scrollLeft + o.scrollSpeed;
 220                                 else if(event.pageX - this.overflowOffset.left < o.scrollSensitivity)
 221                                         this.scrollParent[0].scrollLeft = scrolled = this.scrollParent[0].scrollLeft - o.scrollSpeed;
 222
 223                         } else {
 224
 225                                 if(event.pageY - $(document).scrollTop() < o.scrollSensitivity)
 226                                         scrolled = $(document).scrollTop($(document).scrollTop() - o.scrollSpeed);
 227                                 else if($(window).height() - (event.pageY - $(document).scrollTop()) < o.scrollSensitivity)
 228                                         scrolled = $(document).scrollTop($(document).scrollTop() + o.scrollSpeed);
 229
 230                                 if(event.pageX - $(document).scrollLeft() < o.scrollSensitivity)
 231                                         scrolled = $(document).scrollLeft($(document).scrollLeft() - o.scrollSpeed);
 232                                 else if($(window).width() - (event.pageX - $(document).scrollLeft()) < o.scrollSensitivity)
 233                                         scrolled = $(document).scrollLeft($(document).scrollLeft() + o.scrollSpeed);
 234
 235                         }
 236
 237                         if(scrolled !== false && $.ui.ddmanager && !o.dropBehaviour)
 238                                 $.ui.ddmanager.prepareOffsets(this, event);
 239                 }
 240
 241                 //Regenerate the absolute position used for position checks
 242                 this.positionAbs = this._convertPositionTo("absolute");
 243
 244                 //Set the helper position
 245                 if(!this.options.axis || this.options.axis != "y") this.helper[0].style.left = this.position.left+'px';
 246                 if(!this.options.axis || this.options.axis != "x") this.helper[0].style.top = this.position.top+'px';
 247
 248                 //Rearrange
 249                 for (var i = this.items.length - 1; i >= 0; i--) {
 250
 251                         //Cache variables and intersection, continue if no intersection
 252                         var item = this.items[i], itemElement = item.item[0], intersection = this._intersectsWithPointer(item);
 253                         if (!intersection) continue;
 254
 255                         if(itemElement != this.currentItem[0] //cannot intersect with itself
 256                                 &&      this.placeholder[intersection == 1 ? "next" : "prev"]()[0] != itemElement //no useless actions that have been done before
 257                                 &&      !$.ui.contains(this.placeholder[0], itemElement) //no action if the item moved is the parent of the item checked
 258                                 && (this.options.type == 'semi-dynamic' ? !$.ui.contains(this.element[0], itemElement) : true)
 259                         ) {
 260
 261                                 this.direction = intersection == 1 ? "down" : "up";
 262
 263                                 if (this.options.tolerance == "pointer" || this._intersectsWithSides(item)) {
 264                                         this._rearrange(event, item);
 265                                 } else {
 266                                         break;
 267                                 }
 268
 269                                 this._trigger("change", event, this._uiHash());
 270                                 break;
 271                         }
 272                 }
 273
 274                 //Post events to containers
 275                 this._contactContainers(event);
 276
 277                 //Interconnect with droppables
 278                 if($.ui.ddmanager) $.ui.ddmanager.drag(this, event);
 279
 280                 //Call callbacks
 281                 this._trigger('sort', event, this._uiHash());
 282
 283                 this.lastPositionAbs = this.positionAbs;
 284                 return false;
 285
 286         },
 287
 288         _mouseStop: function(event, noPropagation) {
 289
 290                 if(!event) return;
 291
 292                 //If we are using droppables, inform the manager about the drop
 293                 if ($.ui.ddmanager && !this.options.dropBehaviour)
 294                         $.ui.ddmanager.drop(this, event);
 295
 296                 if(this.options.revert) {
 297                         var self = this;
 298                         var cur = self.placeholder.offset();
 299
 300                         self.reverting = true;
 301
 302                         $(this.helper).animate({
 303                                 left: cur.left - this.offset.parent.left - self.margins.left + (this.offsetParent[0] == document.body ? 0 : this.offsetParent[0].scrollLeft),
 304                                 top: cur.top - this.offset.parent.top - self.margins.top + (this.offsetParent[0] == document.body ? 0 : this.offsetParent[0].scrollTop)
 305                         }, parseInt(this.options.revert, 10) || 500, function() {
 306                                 self._clear(event);
 307                         });
 308                 } else {
 309                         this._clear(event, noPropagation);
 310                 }
 311
 312                 return false;
 313
 314         },
 315
 316         cancel: function() {
 317
 318                 var self = this;
 319
 320                 if(this.dragging) {
 321
 322                         this._mouseUp();
 323
 324                         if(this.options.helper == "original")
 325                                 this.currentItem.css(this._storedCSS).removeClass("ui-sortable-helper");
 326                         else
 327                                 this.currentItem.show();
 328
 329                         //Post deactivating events to containers
 330                         for (var i = this.containers.length - 1; i >= 0; i--){
 331                                 this.containers[i]._trigger("deactivate", null, self._uiHash(this));
 332                                 if(this.containers[i].containerCache.over) {
 333                                         this.containers[i]._trigger("out", null, self._uiHash(this));
 334                                         this.containers[i].containerCache.over = 0;
 335                                 }
 336                         }
 337
 338                 }
 339
 340                 //$(this.placeholder[0]).remove(); would have been the jQuery way - unfortunately, it unbinds ALL events from the original node!
 341                 if(this.placeholder[0].parentNode) this.placeholder[0].parentNode.removeChild(this.placeholder[0]);
 342                 if(this.options.helper != "original" && this.helper && this.helper[0].parentNode) this.helper.remove();
 343
 344                 $.extend(this, {
 345                         helper: null,
 346                         dragging: false,
 347                         reverting: false,
 348                         _noFinalSort: null
 349                 });
 350
 351                 if(this.domPosition.prev) {
 352                         $(this.domPosition.prev).after(this.currentItem);
 353                 } else {
 354                         $(this.domPosition.parent).prepend(this.currentItem);
 355                 }
 356
 357                 return true;
 358
 359         },
 360
 361         serialize: function(o) {
 362
 363                 var items = this._getItemsAsjQuery(o && o.connected);
 364                 var str = []; o = o || {};
 365
 366                 $(items).each(function() {
 367                         var res = ($(o.item || this).attr(o.attribute || 'id') || '').match(o.expression || (/(.+)[-=_](.+)/));
 368                         if(res) str.push((o.key || res[1]+'[]')+'='+(o.key && o.expression ? res[1] : res[2]));
 369                 });
 370
 371                 return str.join('&');
 372
 373         },
 374
 375         toArray: function(o) {
 376
 377                 var items = this._getItemsAsjQuery(o && o.connected);
 378                 var ret = []; o = o || {};
 379
 380                 items.each(function() { ret.push($(o.item || this).attr(o.attribute || 'id') || ''); });
 381                 return ret;
 382
 383         },
 384
 385         /* Be careful with the following core functions */
 386         _intersectsWith: function(item) {
 387
 388                 var x1 = this.positionAbs.left,
 389                         x2 = x1 + this.helperProportions.width,
 390                         y1 = this.positionAbs.top,
 391                         y2 = y1 + this.helperProportions.height;
 392
 393                 var l = item.left,
 394                         r = l + item.width,
 395                         t = item.top,
 396                         b = t + item.height;
 397
 398                 var dyClick = this.offset.click.top,
 399                         dxClick = this.offset.click.left;
 400
 401                 var isOverElement = (y1 + dyClick) > t && (y1 + dyClick) < b && (x1 + dxClick) > l && (x1 + dxClick) < r;
 402
 403                 if(        this.options.tolerance == "pointer"
 404                         || this.options.forcePointerForContainers
 405                         || (this.options.tolerance != "pointer" && this.helperProportions[this.floating ? 'width' : 'height'] > item[this.floating ? 'width' : 'height'])
 406                 ) {
 407                         return isOverElement;
 408                 } else {
 409
 410                         return (l < x1 + (this.helperProportions.width / 2) // Right Half
 411                                 && x2 - (this.helperProportions.width / 2) < r // Left Half
 412                                 && t < y1 + (this.helperProportions.height / 2) // Bottom Half
 413                                 && y2 - (this.helperProportions.height / 2) < b ); // Top Half
 414
 415                 }
 416         },
 417
 418         _intersectsWithPointer: function(item) {
 419
 420                 var isOverElementHeight = $.ui.isOverAxis(this.positionAbs.top + this.offset.click.top, item.top, item.height),
 421                         isOverElementWidth = $.ui.isOverAxis(this.positionAbs.left + this.offset.click.left, item.left, item.width),
 422                         isOverElement = isOverElementHeight && isOverElementWidth,
 423                         verticalDirection = this._getDragVerticalDirection(),
 424                         horizontalDirection = this._getDragHorizontalDirection();
 425
 426                 if (!isOverElement)
 427                         return false;
 428
 429                 return this.floating ?
 430                         ( ((horizontalDirection && horizontalDirection == "right") || verticalDirection == "down") ? 2 : 1 )
 431                         : ( verticalDirection && (verticalDirection == "down" ? 2 : 1) );
 432
 433         },
 434
 435         _intersectsWithSides: function(item) {
 436
 437                 var isOverBottomHalf = $.ui.isOverAxis(this.positionAbs.top + this.offset.click.top, item.top + (item.height/2), item.height),
 438                         isOverRightHalf = $.ui.isOverAxis(this.positionAbs.left + this.offset.click.left, item.left + (item.width/2), item.width),
 439                         verticalDirection = this._getDragVerticalDirection(),
 440                         horizontalDirection = this._getDragHorizontalDirection();
 441
 442                 if (this.floating && horizontalDirection) {
 443                         return ((horizontalDirection == "right" && isOverRightHalf) || (horizontalDirection == "left" && !isOverRightHalf));
 444                 } else {
 445                         return verticalDirection && ((verticalDirection == "down" && isOverBottomHalf) || (verticalDirection == "up" && !isOverBottomHalf));
 446                 }
 447
 448         },
 449
 450         _getDragVerticalDirection: function() {
 451                 var delta = this.positionAbs.top - this.lastPositionAbs.top;
 452                 return delta != 0 && (delta > 0 ? "down" : "up");
 453         },
 454
 455         _getDragHorizontalDirection: function() {
 456                 var delta = this.positionAbs.left - this.lastPositionAbs.left;
 457                 return delta != 0 && (delta > 0 ? "right" : "left");
 458         },
 459
 460         refresh: function(event) {
 461                 this._refreshItems(event);
 462                 this.refreshPositions();
 463         },
 464
 465         _connectWith: function() {
 466                 var options = this.options;
 467                 return options.connectWith.constructor == String
 468                         ? [options.connectWith]
 469                         : options.connectWith;
 470         },
 471
 472         _getItemsAsjQuery: function(connected) {
 473
 474                 var self = this;
 475                 var items = [];
 476                 var queries = [];
 477                 var connectWith = this._connectWith();
 478
 479                 if(connectWith && connected) {
 480                         for (var i = connectWith.length - 1; i >= 0; i--){
 481                                 var cur = $(connectWith[i]);
 482                                 for (var j = cur.length - 1; j >= 0; j--){
 483                                         var inst = $.data(cur[j], 'sortable');
 484                                         if(inst && inst != this && !inst.options.disabled) {
 485                                                 queries.push([$.isFunction(inst.options.items) ? inst.options.items.call(inst.element) : $(inst.options.items, inst.element).not(".ui-sortable-helper"), inst]);
 486                                         }
 487                                 };
 488                         };
 489                 }
 490
 491                 queries.push([$.isFunction(this.options.items) ? this.options.items.call(this.element, null, { options: this.options, item: this.currentItem }) : $(this.options.items, this.element).not(".ui-sortable-helper"), this]);
 492
 493                 for (var i = queries.length - 1; i >= 0; i--){
 494                         queries[i][0].each(function() {
 495                                 items.push(this);
 496                         });
 497                 };
 498
 499                 return $(items);
 500
 501         },
 502
 503         _removeCurrentsFromItems: function() {
 504
 505                 var list = this.currentItem.find(":data(sortable-item)");
 506
 507                 for (var i=0; i < this.items.length; i++) {
 508
 509                         for (var j=0; j < list.length; j++) {
 510                                 if(list[j] == this.items[i].item[0])
 511                                         this.items.splice(i,1);
 512                         };
 513
 514                 };
 515
 516         },
 517
 518         _refreshItems: function(event) {
 519
 520                 this.items = [];
 521                 this.containers = [this];
 522                 var items = this.items;
 523                 var self = this;
 524                 var queries = [[$.isFunction(this.options.items) ? this.options.items.call(this.element[0], event, { item: this.currentItem }) : $(this.options.items, this.element), this]];
 525                 var connectWith = this._connectWith();
 526
 527                 if(connectWith) {
 528                         for (var i = connectWith.length - 1; i >= 0; i--){
 529                                 var cur = $(connectWith[i]);
 530                                 for (var j = cur.length - 1; j >= 0; j--){
 531                                         var inst = $.data(cur[j], 'sortable');
 532                                         if(inst && inst != this && !inst.options.disabled) {
 533                                                 queries.push([$.isFunction(inst.options.items) ? inst.options.items.call(inst.element[0], event, { item: this.currentItem }) : $(inst.options.items, inst.element), inst]);
 534                                                 this.containers.push(inst);
 535                                         }
 536                                 };
 537                         };
 538                 }
 539
 540                 for (var i = queries.length - 1; i >= 0; i--) {
 541                         var targetData = queries[i][1];
 542                         var _queries = queries[i][0];
 543
 544                         for (var j=0, queriesLength = _queries.length; j < queriesLength; j++) {
 545                                 var item = $(_queries[j]);
 546
 547                                 item.data('sortable-item', targetData); // Data for target checking (mouse manager)
 548
 549                                 items.push({
 550                                         item: item,
 551                                         instance: targetData,
 552                                         width: 0, height: 0,
 553                                         left: 0, top: 0
 554                                 });
 555                         };
 556                 };
 557
 558         },
 559
 560         refreshPositions: function(fast) {
 561
 562                 //This has to be redone because due to the item being moved out/into the offsetParent, the offsetParent's position will change
 563                 if(this.offsetParent && this.helper) {
 564                         this.offset.parent = this._getParentOffset();
 565                 }
 566
 567                 for (var i = this.items.length - 1; i >= 0; i--){
 568                         var item = this.items[i];
 569
 570                         //We ignore calculating positions of all connected containers when we're not over them
 571                         if(item.instance != this.currentContainer && this.currentContainer && item.item[0] != this.currentItem[0])
 572                                 continue;
 573
 574                         var t = this.options.toleranceElement ? $(this.options.toleranceElement, item.item) : item.item;
 575
 576                         if (!fast) {
 577                                 item.width = t.outerWidth();
 578                                 item.height = t.outerHeight();
 579                         }
 580
 581                         var p = t.offset();
 582                         item.left = p.left;
 583                         item.top = p.top;
 584                 };
 585
 586                 if(this.options.custom && this.options.custom.refreshContainers) {
 587                         this.options.custom.refreshContainers.call(this);
 588                 } else {
 589                         for (var i = this.containers.length - 1; i >= 0; i--){
 590                                 var p = this.containers[i].element.offset();
 591                                 this.containers[i].containerCache.left = p.left;
 592                                 this.containers[i].containerCache.top = p.top;
 593                                 this.containers[i].containerCache.width = this.containers[i].element.outerWidth();
 594                                 this.containers[i].containerCache.height = this.containers[i].element.outerHeight();
 595                         };
 596                 }
 597
 598         },
 599
 600         _createPlaceholder: function(that) {
 601
 602                 var self = that || this, o = self.options;
 603
 604                 if(!o.placeholder || o.placeholder.constructor == String) {
 605                         var className = o.placeholder;
 606                         o.placeholder = {
 607                                 element: function() {
 608
 609                                         var el = $(document.createElement(self.currentItem[0].nodeName))
 610                                                 .addClass(className || self.currentItem[0].className+" ui-sortable-placeholder")
 611                                                 .removeClass("ui-sortable-helper")[0];
 612
 613                                         if(!className)
 614                                                 el.style.visibility = "hidden";
 615
 616                                         return el;
 617                                 },
 618                                 update: function(container, p) {
 619
 620                                         // 1. If a className is set as 'placeholder option, we don't force sizes - the class is responsible for that
 621                                         // 2. The option 'forcePlaceholderSize can be enabled to force it even if a class name is specified
 622                                         if(className && !o.forcePlaceholderSize) return;
 623
 624                                         //If the element doesn't have a actual height by itself (without styles coming from a stylesheet), it receives the inline height from the dragged item
 625                                         if(!p.height()) { p.height(self.currentItem.innerHeight() - parseInt(self.currentItem.css('paddingTop')||0, 10) - parseInt(self.currentItem.css('paddingBottom')||0, 10)); };
 626                                         if(!p.width()) { p.width(self.currentItem.innerWidth() - parseInt(self.currentItem.css('paddingLeft')||0, 10) - parseInt(self.currentItem.css('paddingRight')||0, 10)); };
 627                                 }
 628                         };
 629                 }
 630
 631                 //Create the placeholder
 632                 self.placeholder = $(o.placeholder.element.call(self.element, self.currentItem));
 633
 634                 //Append it after the actual current item
 635                 self.currentItem.after(self.placeholder);
 636
 637                 //Update the size of the placeholder (TODO: Logic to fuzzy, see line 316/317)
 638                 o.placeholder.update(self, self.placeholder);
 639
 640         },
 641
 642         _contactContainers: function(event) {
 643                 for (var i = this.containers.length - 1; i >= 0; i--){
 644
 645                         if(this._intersectsWith(this.containers[i].containerCache)) {
 646                                 if(!this.containers[i].containerCache.over) {
 647
 648                                         if(this.currentContainer != this.containers[i]) {
 649
 650                                                 //When entering a new container, we will find the item with the least distance and append our item near it
 651                                                 var dist = 10000; var itemWithLeastDistance = null; var base = this.positionAbs[this.containers[i].floating ? 'left' : 'top'];
 652                                                 for (var j = this.items.length - 1; j >= 0; j--) {
 653                                                         if(!$.ui.contains(this.containers[i].element[0], this.items[j].item[0])) continue;
 654                                                         var cur = this.items[j][this.containers[i].floating ? 'left' : 'top'];
 655                                                         if(Math.abs(cur - base) < dist) {
 656                                                                 dist = Math.abs(cur - base); itemWithLeastDistance = this.items[j];
 657                                                         }
 658                                                 }
 659
 660                                                 if(!itemWithLeastDistance && !this.options.dropOnEmpty) //Check if dropOnEmpty is enabled
 661                                                         continue;
 662
 663                                                 this.currentContainer = this.containers[i];
 664                                                 itemWithLeastDistance ? this._rearrange(event, itemWithLeastDistance, null, true) : this._rearrange(event, null, this.containers[i].element, true);
 665                                                 this._trigger("change", event, this._uiHash());
 666                                                 this.containers[i]._trigger("change", event, this._uiHash(this));
 667
 668                                                 //Update the placeholder
 669                                                 this.options.placeholder.update(this.currentContainer, this.placeholder);
 670
 671                                         }
 672
 673                                         this.containers[i]._trigger("over", event, this._uiHash(this));
 674                                         this.containers[i].containerCache.over = 1;
 675                                 }
 676                         } else {
 677                                 if(this.containers[i].containerCache.over) {
 678                                         this.containers[i]._trigger("out", event, this._uiHash(this));
 679                                         this.containers[i].containerCache.over = 0;
 680                                 }
 681                         }
 682
 683                 };
 684         },
 685
 686         _createHelper: function(event) {
 687
 688                 var o = this.options;
 689                 var helper = $.isFunction(o.helper) ? $(o.helper.apply(this.element[0], [event, this.currentItem])) : (o.helper == 'clone' ? this.currentItem.clone() : this.currentItem);
 690
 691                 if(!helper.parents('body').length) //Add the helper to the DOM if that didn't happen already
 692                         $(o.appendTo != 'parent' ? o.appendTo : this.currentItem[0].parentNode)[0].appendChild(helper[0]);
 693
 694                 if(helper[0] == this.currentItem[0])
 695                         this._storedCSS = { width: this.currentItem[0].style.width, height: this.currentItem[0].style.height, position: this.currentItem.css("position"), top: this.currentItem.css("top"), left: this.currentItem.css("left") };
 696
 697                 if(helper[0].style.width == '' || o.forceHelperSize) helper.width(this.currentItem.width());
 698                 if(helper[0].style.height == '' || o.forceHelperSize) helper.height(this.currentItem.height());
 699
 700                 return helper;
 701
 702         },
 703
 704         _adjustOffsetFromHelper: function(obj) {
 705                 if(obj.left != undefined) this.offset.click.left = obj.left + this.margins.left;
 706                 if(obj.right != undefined) this.offset.click.left = this.helperProportions.width - obj.right + this.margins.left;
 707                 if(obj.top != undefined) this.offset.click.top = obj.top + this.margins.top;
 708                 if(obj.bottom != undefined) this.offset.click.top = this.helperProportions.height - obj.bottom + this.margins.top;
 709         },
 710
 711         _getParentOffset: function() {
 712
 713
 714                 //Get the offsetParent and cache its position
 715                 this.offsetParent = this.helper.offsetParent();
 716                 var po = this.offsetParent.offset();
 717
 718                 // This is a special case where we need to modify a offset calculated on start, since the following happened:
 719                 // 1. The position of the helper is absolute, so it's position is calculated based on the next positioned parent
 720                 // 2. The actual offset parent is a child of the scroll parent, and the scroll parent isn't the document, which means that
 721                 //      the scroll is included in the initial calculation of the offset of the parent, and never recalculated upon drag
 722                 if(this.cssPosition == 'absolute' && this.scrollParent[0] != document && $.ui.contains(this.scrollParent[0], this.offsetParent[0])) {
 723                         po.left += this.scrollParent.scrollLeft();
 724                         po.top += this.scrollParent.scrollTop();
 725                 }
 726
 727                 if((this.offsetParent[0] == document.body) //This needs to be actually done for all browsers, since pageX/pageY includes this information
 728                 || (this.offsetParent[0].tagName && this.offsetParent[0].tagName.toLowerCase() == 'html' && $.browser.msie)) //Ugly IE fix
 729                         po = { top: 0, left: 0 };
 730
 731                 return {
 732                         top: po.top + (parseInt(this.offsetParent.css("borderTopWidth"),10) || 0),
 733                         left: po.left + (parseInt(this.offsetParent.css("borderLeftWidth"),10) || 0)
 734                 };
 735
 736         },
 737
 738         _getRelativeOffset: function() {
 739
 740                 if(this.cssPosition == "relative") {
 741                         var p = this.currentItem.position();
 742                         return {
 743                                 top: p.top - (parseInt(this.helper.css("top"),10) || 0) + this.scrollParent.scrollTop(),
 744                                 left: p.left - (parseInt(this.helper.css("left"),10) || 0) + this.scrollParent.scrollLeft()
 745                         };
 746                 } else {
 747                         return { top: 0, left: 0 };
 748                 }
 749
 750         },
 751
 752         _cacheMargins: function() {
 753                 this.margins = {
 754                         left: (parseInt(this.currentItem.css("marginLeft"),10) || 0),
 755                         top: (parseInt(this.currentItem.css("marginTop"),10) || 0)
 756                 };
 757         },
 758
 759         _cacheHelperProportions: function() {
 760                 this.helperProportions = {
 761                         width: this.helper.outerWidth(),
 762                         height: this.helper.outerHeight()
 763                 };
 764         },
 765
 766         _setContainment: function() {
 767
 768                 var o = this.options;
 769                 if(o.containment == 'parent') o.containment = this.helper[0].parentNode;
 770                 if(o.containment == 'document' || o.containment == 'window') this.containment = [
 771                         0 - this.offset.relative.left - this.offset.parent.left,
 772                         0 - this.offset.relative.top - this.offset.parent.top,
 773                         $(o.containment == 'document' ? document : window).width() - this.helperProportions.width - this.margins.left,
 774                         ($(o.containment == 'document' ? document : window).height() || document.body.parentNode.scrollHeight) - this.helperProportions.height - this.margins.top
 775                 ];
 776
 777                 if(!(/^(document|window|parent)$/).test(o.containment)) {
 778                         var ce = $(o.containment)[0];
 779                         var co = $(o.containment).offset();
 780                         var over = ($(ce).css("overflow") != 'hidden');
 781
 782                         this.containment = [
 783                                 co.left + (parseInt($(ce).css("borderLeftWidth"),10) || 0) + (parseInt($(ce).css("paddingLeft"),10) || 0) - this.margins.left,
 784                                 co.top + (parseInt($(ce).css("borderTopWidth"),10) || 0) + (parseInt($(ce).css("paddingTop"),10) || 0) - this.margins.top,
 785                                 co.left+(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,
 786                                 co.top+(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
 787                         ];
 788                 }
 789
 790         },
 791
 792         _convertPositionTo: function(d, pos) {
 793
 794                 if(!pos) pos = this.position;
 795                 var mod = d == "absolute" ? 1 : -1;
 796                 var o = this.options, scroll = this.cssPosition == 'absolute' && !(this.scrollParent[0] != document && $.ui.contains(this.scrollParent[0], this.offsetParent[0])) ? this.offsetParent : this.scrollParent, scrollIsRootNode = (/(html|body)/i).test(scroll[0].tagName);
 797
 798                 return {
 799                         top: (
 800                                 pos.top                                                                                                                                 // The absolute mouse position
 801                                 + this.offset.relative.top * mod                                                                                // Only for relative positioned nodes: Relative offset from element to offset parent
 802                                 + this.offset.parent.top * mod                                                                                  // The offsetParent's offset without borders (offset + border)
 803                                 - ($.browser.safari && this.cssPosition == 'fixed' ? 0 : ( this.cssPosition == 'fixed' ? -this.scrollParent.scrollTop() : ( scrollIsRootNode ? 0 : scroll.scrollTop() ) ) * mod)
 804                         ),
 805                         left: (
 806                                 pos.left                                                                                                                                // The absolute mouse position
 807                                 + this.offset.relative.left * mod                                                                               // Only for relative positioned nodes: Relative offset from element to offset parent
 808                                 + this.offset.parent.left * mod                                                                                 // The offsetParent's offset without borders (offset + border)
 809                                 - ($.browser.safari && this.cssPosition == 'fixed' ? 0 : ( this.cssPosition == 'fixed' ? -this.scrollParent.scrollLeft() : scrollIsRootNode ? 0 : scroll.scrollLeft() ) * mod)
 810                         )
 811                 };
 812
 813         },
 814
 815         _generatePosition: function(event) {
 816
 817                 var o = this.options, scroll = this.cssPosition == 'absolute' && !(this.scrollParent[0] != document && $.ui.contains(this.scrollParent[0], this.offsetParent[0])) ? this.offsetParent : this.scrollParent, scrollIsRootNode = (/(html|body)/i).test(scroll[0].tagName);
 818
 819                 // This is another very weird special case that only happens for relative elements:
 820                 // 1. If the css position is relative
 821                 // 2. and the scroll parent is the document or similar to the offset parent
 822                 // we have to refresh the relative offset during the scroll so there are no jumps
 823                 if(this.cssPosition == 'relative' && !(this.scrollParent[0] != document && this.scrollParent[0] != this.offsetParent[0])) {
 824                         this.offset.relative = this._getRelativeOffset();
 825                 }
 826
 827                 var pageX = event.pageX;
 828                 var pageY = event.pageY;
 829
 830                 /*
 831                  * - Position constraining -
 832                  * Constrain the position to a mix of grid, containment.
 833                  */
 834
 835                 if(this.originalPosition) { //If we are not dragging yet, we won't check for options
 836
 837                         if(this.containment) {
 838                                 if(event.pageX - this.offset.click.left < this.containment[0]) pageX = this.containment[0] + this.offset.click.left;
 839                                 if(event.pageY - this.offset.click.top < this.containment[1]) pageY = this.containment[1] + this.offset.click.top;
 840                                 if(event.pageX - this.offset.click.left > this.containment[2]) pageX = this.containment[2] + this.offset.click.left;
 841                                 if(event.pageY - this.offset.click.top > this.containment[3]) pageY = this.containment[3] + this.offset.click.top;
 842                         }
 843
 844                         if(o.grid) {
 845                                 var top = this.originalPageY + Math.round((pageY - this.originalPageY) / o.grid[1]) * o.grid[1];
 846                                 pageY = this.containment ? (!(top - this.offset.click.top < this.containment[1] || top - this.offset.click.top > this.containment[3]) ? top : (!(top - this.offset.click.top < this.containment[1]) ? top - o.grid[1] : top + o.grid[1])) : top;
 847
 848                                 var left = this.originalPageX + Math.round((pageX - this.originalPageX) / o.grid[0]) * o.grid[0];
 849                                 pageX = this.containment ? (!(left - this.offset.click.left < this.containment[0] || left - this.offset.click.left > this.containment[2]) ? left : (!(left - this.offset.click.left < this.containment[0]) ? left - o.grid[0] : left + o.grid[0])) : left;
 850                         }
 851
 852                 }
 853
 854                 return {
 855                         top: (
 856                                 pageY                                                                                                                           // The absolute mouse position
 857                                 - this.offset.click.top                                                                                                 // Click offset (relative to the element)
 858                                 - this.offset.relative.top                                                                                              // Only for relative positioned nodes: Relative offset from element to offset parent
 859                                 - this.offset.parent.top                                                                                                // The offsetParent's offset without borders (offset + border)
 860                                 + ($.browser.safari && this.cssPosition == 'fixed' ? 0 : ( this.cssPosition == 'fixed' ? -this.scrollParent.scrollTop() : ( scrollIsRootNode ? 0 : scroll.scrollTop() ) ))
 861                         ),
 862                         left: (
 863                                 pageX                                                                                                                           // The absolute mouse position
 864                                 - this.offset.click.left                                                                                                // Click offset (relative to the element)
 865                                 - this.offset.relative.left                                                                                             // Only for relative positioned nodes: Relative offset from element to offset parent
 866                                 - this.offset.parent.left                                                                                               // The offsetParent's offset without borders (offset + border)
 867                                 + ($.browser.safari && this.cssPosition == 'fixed' ? 0 : ( this.cssPosition == 'fixed' ? -this.scrollParent.scrollLeft() : scrollIsRootNode ? 0 : scroll.scrollLeft() ))
 868                         )
 869                 };
 870
 871         },
 872
 873         _rearrange: function(event, i, a, hardRefresh) {
 874
 875                 a ? a[0].appendChild(this.placeholder[0]) : i.item[0].parentNode.insertBefore(this.placeholder[0], (this.direction == 'down' ? i.item[0] : i.item[0].nextSibling));
 876
 877                 //Various things done here to improve the performance:
 878                 // 1. we create a setTimeout, that calls refreshPositions
 879                 // 2. on the instance, we have a counter variable, that get's higher after every append
 880                 // 3. on the local scope, we copy the counter variable, and check in the timeout, if it's still the same
 881                 // 4. this lets only the last addition to the timeout stack through
 882                 this.counter = this.counter ? ++this.counter : 1;
 883                 var self = this, counter = this.counter;
 884
 885                 window.setTimeout(function() {
 886                         if(counter == self.counter) self.refreshPositions(!hardRefresh); //Precompute after each DOM insertion, NOT on mousemove
 887                 },0);
 888
 889         },
 890
 891         _clear: function(event, noPropagation) {
 892
 893                 this.reverting = false;
 894                 // We delay all events that have to be triggered to after the point where the placeholder has been removed and
 895                 // everything else normalized again
 896                 var delayedTriggers = [], self = this;
 897
 898                 // We first have to update the dom position of the actual currentItem
 899                 // Note: don't do it if the current item is already removed (by a user), or it gets reappended (see #4088)
 900                 if(!this._noFinalSort && this.currentItem[0].parentNode) this.placeholder.before(this.currentItem);
 901                 this._noFinalSort = null;
 902
 903                 if(this.helper[0] == this.currentItem[0]) {
 904                         for(var i in this._storedCSS) {
 905                                 if(this._storedCSS[i] == 'auto' || this._storedCSS[i] == 'static') this._storedCSS[i] = '';
 906                         }
 907                         this.currentItem.css(this._storedCSS).removeClass("ui-sortable-helper");
 908                 } else {
 909                         this.currentItem.show();
 910                 }
 911
 912                 if(this.fromOutside && !noPropagation) delayedTriggers.push(function(event) { this._trigger("receive", event, this._uiHash(this.fromOutside)); });
 913                 if((this.fromOutside || this.domPosition.prev != this.currentItem.prev().not(".ui-sortable-helper")[0] || this.domPosition.parent != this.currentItem.parent()[0]) && !noPropagation) delayedTriggers.push(function(event) { this._trigger("update", event, this._uiHash()); }); //Trigger update callback if the DOM position has changed
 914                 if(!$.ui.contains(this.element[0], this.currentItem[0])) { //Node was moved out of the current element
 915                         if(!noPropagation) delayedTriggers.push(function(event) { this._trigger("remove", event, this._uiHash()); });
 916                         for (var i = this.containers.length - 1; i >= 0; i--){
 917                                 if($.ui.contains(this.containers[i].element[0], this.currentItem[0]) && !noPropagation) {
 918                                         delayedTriggers.push((function(c) { return function(event) { c._trigger("receive", event, this._uiHash(this)); };  }).call(this, this.containers[i]));
 919                                         delayedTriggers.push((function(c) { return function(event) { c._trigger("update", event, this._uiHash(this));  }; }).call(this, this.containers[i]));
 920                                 }
 921                         };
 922                 };
 923
 924                 //Post events to containers
 925                 for (var i = this.containers.length - 1; i >= 0; i--){
 926                         if(!noPropagation) delayedTriggers.push((function(c) { return function(event) { c._trigger("deactivate", event, this._uiHash(this)); };  }).call(this, this.containers[i]));
 927                         if(this.containers[i].containerCache.over) {
 928                                 delayedTriggers.push((function(c) { return function(event) { c._trigger("out", event, this._uiHash(this)); };  }).call(this, this.containers[i]));
 929                                 this.containers[i].containerCache.over = 0;
 930                         }
 931                 }
 932
 933                 //Do what was originally in plugins
 934                 if(this._storedCursor) $('body').css("cursor", this._storedCursor); //Reset cursor
 935                 if(this._storedOpacity) this.helper.css("opacity", this._storedOpacity); //Reset cursor
 936                 if(this._storedZIndex) this.helper.css("zIndex", this._storedZIndex == 'auto' ? '' : this._storedZIndex); //Reset z-index
 937
 938                 this.dragging = false;
 939                 if(this.cancelHelperRemoval) {
 940                         if(!noPropagation) {
 941                                 this._trigger("beforeStop", event, this._uiHash());
 942                                 for (var i=0; i < delayedTriggers.length; i++) { delayedTriggers[i].call(this, event); }; //Trigger all delayed events
 943                                 this._trigger("stop", event, this._uiHash());
 944                         }
 945                         return false;
 946                 }
 947
 948                 if(!noPropagation) this._trigger("beforeStop", event, this._uiHash());
 949
 950                 //$(this.placeholder[0]).remove(); would have been the jQuery way - unfortunately, it unbinds ALL events from the original node!
 951                 this.placeholder[0].parentNode.removeChild(this.placeholder[0]);
 952
 953                 if(this.helper[0] != this.currentItem[0]) this.helper.remove(); this.helper = null;
 954
 955                 if(!noPropagation) {
 956                         for (var i=0; i < delayedTriggers.length; i++) { delayedTriggers[i].call(this, event); }; //Trigger all delayed events
 957                         this._trigger("stop", event, this._uiHash());
 958                 }
 959
 960                 this.fromOutside = false;
 961                 return true;
 962
 963         },
 964
 965         _trigger: function() {
 966                 if ($.widget.prototype._trigger.apply(this, arguments) === false) {
 967                         this.cancel();
 968                 }
 969         },
 970
 971         _uiHash: function(inst) {
 972                 var self = inst || this;
 973                 return {
 974                         helper: self.helper,
 975                         placeholder: self.placeholder || $([]),
 976                         position: self.position,
 977                         absolutePosition: self.positionAbs, //deprecated
 978                         offset: self.positionAbs,
 979                         item: self.currentItem,
 980                         sender: inst ? inst.element : null
 981                 };
 982         }
 983
 984 }));
 985
 986 $.extend($.ui.sortable, {
 987         getter: "serialize toArray",
 988         version: "1.7.1",
 989         eventPrefix: "sort",
 990         defaults: {
 991                 appendTo: "parent",
 992                 axis: false,
 993                 cancel: ":input,option",
 994                 connectWith: false,
 995                 containment: false,
 996                 cursor: 'auto',
 997                 cursorAt: false,
 998                 delay: 0,
 999                 distance: 1,
1000                 dropOnEmpty: true,
1001                 forcePlaceholderSize: false,
1002                 forceHelperSize: false,
1003                 grid: false,
1004                 handle: false,
1005                 helper: "original",
1006                 items: '> *',
1007                 opacity: false,
1008                 placeholder: false,
1009                 revert: false,
1010                 scroll: true,
1011                 scrollSensitivity: 20,
1012                 scrollSpeed: 20,
1013                 scope: "default",
1014                 tolerance: "intersect",
1015                 zIndex: 1000
1016         }
1017 });
1018
1019 })(jQuery);