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Merge "Cache VCS commit id/date text on Special:Version"
[lhc/web/wiklou.git] / resources / jquery.ui / jquery.ui.sortable.js
1 /*!
2 * jQuery UI Sortable 1.8.24
3 *
4 * Copyright 2012, AUTHORS.txt (http://jqueryui.com/about)
5 * Dual licensed under the MIT or GPL Version 2 licenses.
6 * http://jquery.org/license
7 *
8 * http://docs.jquery.com/UI/Sortables
9 *
10 * Depends:
11 * jquery.ui.core.js
12 * jquery.ui.mouse.js
13 * jquery.ui.widget.js
14 */
15 (function( $, undefined ) {
16
17 $.widget("ui.sortable", $.ui.mouse, {
18 widgetEventPrefix: "sort",
19 ready: false,
20 options: {
21 appendTo: "parent",
22 axis: false,
23 connectWith: false,
24 containment: false,
25 cursor: 'auto',
26 cursorAt: false,
27 dropOnEmpty: true,
28 forcePlaceholderSize: false,
29 forceHelperSize: false,
30 grid: false,
31 handle: false,
32 helper: "original",
33 items: '> *',
34 opacity: false,
35 placeholder: false,
36 revert: false,
37 scroll: true,
38 scrollSensitivity: 20,
39 scrollSpeed: 20,
40 scope: "default",
41 tolerance: "intersect",
42 zIndex: 1000
43 },
44 _create: function() {
45
46 var o = this.options;
47 this.containerCache = {};
48 this.element.addClass("ui-sortable");
49
50 //Get the items
51 this.refresh();
52
53 //Let's determine if the items are being displayed horizontally
54 this.floating = this.items.length ? o.axis === 'x' || (/left|right/).test(this.items[0].item.css('float')) || (/inline|table-cell/).test(this.items[0].item.css('display')) : false;
55
56 //Let's determine the parent's offset
57 this.offset = this.element.offset();
58
59 //Initialize mouse events for interaction
60 this._mouseInit();
61
62 //We're ready to go
63 this.ready = true
64
65 },
66
67 destroy: function() {
68 $.Widget.prototype.destroy.call( this );
69 this.element
70 .removeClass("ui-sortable ui-sortable-disabled");
71 this._mouseDestroy();
72
73 for ( var i = this.items.length - 1; i >= 0; i-- )
74 this.items[i].item.removeData(this.widgetName + "-item");
75
76 return this;
77 },
78
79 _setOption: function(key, value){
80 if ( key === "disabled" ) {
81 this.options[ key ] = value;
82
83 this.widget()
84 [ value ? "addClass" : "removeClass"]( "ui-sortable-disabled" );
85 } else {
86 // Don't call widget base _setOption for disable as it adds ui-state-disabled class
87 $.Widget.prototype._setOption.apply(this, arguments);
88 }
89 },
90
91 _mouseCapture: function(event, overrideHandle) {
92 var that = this;
93
94 if (this.reverting) {
95 return false;
96 }
97
98 if(this.options.disabled || this.options.type == 'static') return false;
99
100 //We have to refresh the items data once first
101 this._refreshItems(event);
102
103 //Find out if the clicked node (or one of its parents) is a actual item in this.items
104 var currentItem = null, self = this, nodes = $(event.target).parents().each(function() {
105 if($.data(this, that.widgetName + '-item') == self) {
106 currentItem = $(this);
107 return false;
108 }
109 });
110 if($.data(event.target, that.widgetName + '-item') == self) currentItem = $(event.target);
111
112 if(!currentItem) return false;
113 if(this.options.handle && !overrideHandle) {
114 var validHandle = false;
115
116 $(this.options.handle, currentItem).find("*").andSelf().each(function() { if(this == event.target) validHandle = true; });
117 if(!validHandle) return false;
118 }
119
120 this.currentItem = currentItem;
121 this._removeCurrentsFromItems();
122 return true;
123
124 },
125
126 _mouseStart: function(event, overrideHandle, noActivation) {
127
128 var o = this.options, self = this;
129 this.currentContainer = this;
130
131 //We only need to call refreshPositions, because the refreshItems call has been moved to mouseCapture
132 this.refreshPositions();
133
134 //Create and append the visible helper
135 this.helper = this._createHelper(event);
136
137 //Cache the helper size
138 this._cacheHelperProportions();
139
140 /*
141 * - Position generation -
142 * This block generates everything position related - it's the core of draggables.
143 */
144
145 //Cache the margins of the original element
146 this._cacheMargins();
147
148 //Get the next scrolling parent
149 this.scrollParent = this.helper.scrollParent();
150
151 //The element's absolute position on the page minus margins
152 this.offset = this.currentItem.offset();
153 this.offset = {
154 top: this.offset.top - this.margins.top,
155 left: this.offset.left - this.margins.left
156 };
157
158 $.extend(this.offset, {
159 click: { //Where the click happened, relative to the element
160 left: event.pageX - this.offset.left,
161 top: event.pageY - this.offset.top
162 },
163 parent: this._getParentOffset(),
164 relative: this._getRelativeOffset() //This is a relative to absolute position minus the actual position calculation - only used for relative positioned helper
165 });
166
167 // Only after we got the offset, we can change the helper's position to absolute
168 // TODO: Still need to figure out a way to make relative sorting possible
169 this.helper.css("position", "absolute");
170 this.cssPosition = this.helper.css("position");
171
172 //Generate the original position
173 this.originalPosition = this._generatePosition(event);
174 this.originalPageX = event.pageX;
175 this.originalPageY = event.pageY;
176
177 //Adjust the mouse offset relative to the helper if 'cursorAt' is supplied
178 (o.cursorAt && this._adjustOffsetFromHelper(o.cursorAt));
179
180 //Cache the former DOM position
181 this.domPosition = { prev: this.currentItem.prev()[0], parent: this.currentItem.parent()[0] };
182
183 //If the helper is not the original, hide the original so it's not playing any role during the drag, won't cause anything bad this way
184 if(this.helper[0] != this.currentItem[0]) {
185 this.currentItem.hide();
186 }
187
188 //Create the placeholder
189 this._createPlaceholder();
190
191 //Set a containment if given in the options
192 if(o.containment)
193 this._setContainment();
194
195 if(o.cursor) { // cursor option
196 if ($('body').css("cursor")) this._storedCursor = $('body').css("cursor");
197 $('body').css("cursor", o.cursor);
198 }
199
200 if(o.opacity) { // opacity option
201 if (this.helper.css("opacity")) this._storedOpacity = this.helper.css("opacity");
202 this.helper.css("opacity", o.opacity);
203 }
204
205 if(o.zIndex) { // zIndex option
206 if (this.helper.css("zIndex")) this._storedZIndex = this.helper.css("zIndex");
207 this.helper.css("zIndex", o.zIndex);
208 }
209
210 //Prepare scrolling
211 if(this.scrollParent[0] != document && this.scrollParent[0].tagName != 'HTML')
212 this.overflowOffset = this.scrollParent.offset();
213
214 //Call callbacks
215 this._trigger("start", event, this._uiHash());
216
217 //Recache the helper size
218 if(!this._preserveHelperProportions)
219 this._cacheHelperProportions();
220
221
222 //Post 'activate' events to possible containers
223 if(!noActivation) {
224 for (var i = this.containers.length - 1; i >= 0; i--) { this.containers[i]._trigger("activate", event, self._uiHash(this)); }
225 }
226
227 //Prepare possible droppables
228 if($.ui.ddmanager)
229 $.ui.ddmanager.current = this;
230
231 if ($.ui.ddmanager && !o.dropBehaviour)
232 $.ui.ddmanager.prepareOffsets(this, event);
233
234 this.dragging = true;
235
236 this.helper.addClass("ui-sortable-helper");
237 this._mouseDrag(event); //Execute the drag once - this causes the helper not to be visible before getting its correct position
238 return true;
239
240 },
241
242 _mouseDrag: function(event) {
243
244 //Compute the helpers position
245 this.position = this._generatePosition(event);
246 this.positionAbs = this._convertPositionTo("absolute");
247
248 if (!this.lastPositionAbs) {
249 this.lastPositionAbs = this.positionAbs;
250 }
251
252 //Do scrolling
253 if(this.options.scroll) {
254 var o = this.options, scrolled = false;
255 if(this.scrollParent[0] != document && this.scrollParent[0].tagName != 'HTML') {
256
257 if((this.overflowOffset.top + this.scrollParent[0].offsetHeight) - event.pageY < o.scrollSensitivity)
258 this.scrollParent[0].scrollTop = scrolled = this.scrollParent[0].scrollTop + o.scrollSpeed;
259 else if(event.pageY - this.overflowOffset.top < o.scrollSensitivity)
260 this.scrollParent[0].scrollTop = scrolled = this.scrollParent[0].scrollTop - o.scrollSpeed;
261
262 if((this.overflowOffset.left + this.scrollParent[0].offsetWidth) - event.pageX < o.scrollSensitivity)
263 this.scrollParent[0].scrollLeft = scrolled = this.scrollParent[0].scrollLeft + o.scrollSpeed;
264 else if(event.pageX - this.overflowOffset.left < o.scrollSensitivity)
265 this.scrollParent[0].scrollLeft = scrolled = this.scrollParent[0].scrollLeft - o.scrollSpeed;
266
267 } else {
268
269 if(event.pageY - $(document).scrollTop() < o.scrollSensitivity)
270 scrolled = $(document).scrollTop($(document).scrollTop() - o.scrollSpeed);
271 else if($(window).height() - (event.pageY - $(document).scrollTop()) < o.scrollSensitivity)
272 scrolled = $(document).scrollTop($(document).scrollTop() + o.scrollSpeed);
273
274 if(event.pageX - $(document).scrollLeft() < o.scrollSensitivity)
275 scrolled = $(document).scrollLeft($(document).scrollLeft() - o.scrollSpeed);
276 else if($(window).width() - (event.pageX - $(document).scrollLeft()) < o.scrollSensitivity)
277 scrolled = $(document).scrollLeft($(document).scrollLeft() + o.scrollSpeed);
278
279 }
280
281 if(scrolled !== false && $.ui.ddmanager && !o.dropBehaviour)
282 $.ui.ddmanager.prepareOffsets(this, event);
283 }
284
285 //Regenerate the absolute position used for position checks
286 this.positionAbs = this._convertPositionTo("absolute");
287
288 //Set the helper position
289 if(!this.options.axis || this.options.axis != "y") this.helper[0].style.left = this.position.left+'px';
290 if(!this.options.axis || this.options.axis != "x") this.helper[0].style.top = this.position.top+'px';
291
292 //Rearrange
293 for (var i = this.items.length - 1; i >= 0; i--) {
294
295 //Cache variables and intersection, continue if no intersection
296 var item = this.items[i], itemElement = item.item[0], intersection = this._intersectsWithPointer(item);
297 if (!intersection) continue;
298
299 // Only put the placeholder inside the current Container, skip all
300 // items form other containers. This works because when moving
301 // an item from one container to another the
302 // currentContainer is switched before the placeholder is moved.
303 //
304 // Without this moving items in "sub-sortables" can cause the placeholder to jitter
305 // beetween the outer and inner container.
306 if (item.instance !== this.currentContainer) continue;
307
308 if (itemElement != this.currentItem[0] //cannot intersect with itself
309 && this.placeholder[intersection == 1 ? "next" : "prev"]()[0] != itemElement //no useless actions that have been done before
310 && !$.ui.contains(this.placeholder[0], itemElement) //no action if the item moved is the parent of the item checked
311 && (this.options.type == 'semi-dynamic' ? !$.ui.contains(this.element[0], itemElement) : true)
312 //&& itemElement.parentNode == this.placeholder[0].parentNode // only rearrange items within the same container
313 ) {
314
315 this.direction = intersection == 1 ? "down" : "up";
316
317 if (this.options.tolerance == "pointer" || this._intersectsWithSides(item)) {
318 this._rearrange(event, item);
319 } else {
320 break;
321 }
322
323 this._trigger("change", event, this._uiHash());
324 break;
325 }
326 }
327
328 //Post events to containers
329 this._contactContainers(event);
330
331 //Interconnect with droppables
332 if($.ui.ddmanager) $.ui.ddmanager.drag(this, event);
333
334 //Call callbacks
335 this._trigger('sort', event, this._uiHash());
336
337 this.lastPositionAbs = this.positionAbs;
338 return false;
339
340 },
341
342 _mouseStop: function(event, noPropagation) {
343
344 if(!event) return;
345
346 //If we are using droppables, inform the manager about the drop
347 if ($.ui.ddmanager && !this.options.dropBehaviour)
348 $.ui.ddmanager.drop(this, event);
349
350 if(this.options.revert) {
351 var self = this;
352 var cur = self.placeholder.offset();
353
354 self.reverting = true;
355
356 $(this.helper).animate({
357 left: cur.left - this.offset.parent.left - self.margins.left + (this.offsetParent[0] == document.body ? 0 : this.offsetParent[0].scrollLeft),
358 top: cur.top - this.offset.parent.top - self.margins.top + (this.offsetParent[0] == document.body ? 0 : this.offsetParent[0].scrollTop)
359 }, parseInt(this.options.revert, 10) || 500, function() {
360 self._clear(event);
361 });
362 } else {
363 this._clear(event, noPropagation);
364 }
365
366 return false;
367
368 },
369
370 cancel: function() {
371
372 var self = this;
373
374 if(this.dragging) {
375
376 this._mouseUp({ target: null });
377
378 if(this.options.helper == "original")
379 this.currentItem.css(this._storedCSS).removeClass("ui-sortable-helper");
380 else
381 this.currentItem.show();
382
383 //Post deactivating events to containers
384 for (var i = this.containers.length - 1; i >= 0; i--){
385 this.containers[i]._trigger("deactivate", null, self._uiHash(this));
386 if(this.containers[i].containerCache.over) {
387 this.containers[i]._trigger("out", null, self._uiHash(this));
388 this.containers[i].containerCache.over = 0;
389 }
390 }
391
392 }
393
394 if (this.placeholder) {
395 //$(this.placeholder[0]).remove(); would have been the jQuery way - unfortunately, it unbinds ALL events from the original node!
396 if(this.placeholder[0].parentNode) this.placeholder[0].parentNode.removeChild(this.placeholder[0]);
397 if(this.options.helper != "original" && this.helper && this.helper[0].parentNode) this.helper.remove();
398
399 $.extend(this, {
400 helper: null,
401 dragging: false,
402 reverting: false,
403 _noFinalSort: null
404 });
405
406 if(this.domPosition.prev) {
407 $(this.domPosition.prev).after(this.currentItem);
408 } else {
409 $(this.domPosition.parent).prepend(this.currentItem);
410 }
411 }
412
413 return this;
414
415 },
416
417 serialize: function(o) {
418
419 var items = this._getItemsAsjQuery(o && o.connected);
420 var str = []; o = o || {};
421
422 $(items).each(function() {
423 var res = ($(o.item || this).attr(o.attribute || 'id') || '').match(o.expression || (/(.+)[-=_](.+)/));
424 if(res) str.push((o.key || res[1]+'[]')+'='+(o.key && o.expression ? res[1] : res[2]));
425 });
426
427 if(!str.length && o.key) {
428 str.push(o.key + '=');
429 }
430
431 return str.join('&');
432
433 },
434
435 toArray: function(o) {
436
437 var items = this._getItemsAsjQuery(o && o.connected);
438 var ret = []; o = o || {};
439
440 items.each(function() { ret.push($(o.item || this).attr(o.attribute || 'id') || ''); });
441 return ret;
442
443 },
444
445 /* Be careful with the following core functions */
446 _intersectsWith: function(item) {
447
448 var x1 = this.positionAbs.left,
449 x2 = x1 + this.helperProportions.width,
450 y1 = this.positionAbs.top,
451 y2 = y1 + this.helperProportions.height;
452
453 var l = item.left,
454 r = l + item.width,
455 t = item.top,
456 b = t + item.height;
457
458 var dyClick = this.offset.click.top,
459 dxClick = this.offset.click.left;
460
461 var isOverElement = (y1 + dyClick) > t && (y1 + dyClick) < b && (x1 + dxClick) > l && (x1 + dxClick) < r;
462
463 if( this.options.tolerance == "pointer"
464 || this.options.forcePointerForContainers
465 || (this.options.tolerance != "pointer" && this.helperProportions[this.floating ? 'width' : 'height'] > item[this.floating ? 'width' : 'height'])
466 ) {
467 return isOverElement;
468 } else {
469
470 return (l < x1 + (this.helperProportions.width / 2) // Right Half
471 && x2 - (this.helperProportions.width / 2) < r // Left Half
472 && t < y1 + (this.helperProportions.height / 2) // Bottom Half
473 && y2 - (this.helperProportions.height / 2) < b ); // Top Half
474
475 }
476 },
477
478 _intersectsWithPointer: function(item) {
479
480 var isOverElementHeight = (this.options.axis === 'x') || $.ui.isOverAxis(this.positionAbs.top + this.offset.click.top, item.top, item.height),
481 isOverElementWidth = (this.options.axis === 'y') || $.ui.isOverAxis(this.positionAbs.left + this.offset.click.left, item.left, item.width),
482 isOverElement = isOverElementHeight && isOverElementWidth,
483 verticalDirection = this._getDragVerticalDirection(),
484 horizontalDirection = this._getDragHorizontalDirection();
485
486 if (!isOverElement)
487 return false;
488
489 return this.floating ?
490 ( ((horizontalDirection && horizontalDirection == "right") || verticalDirection == "down") ? 2 : 1 )
491 : ( verticalDirection && (verticalDirection == "down" ? 2 : 1) );
492
493 },
494
495 _intersectsWithSides: function(item) {
496
497 var isOverBottomHalf = $.ui.isOverAxis(this.positionAbs.top + this.offset.click.top, item.top + (item.height/2), item.height),
498 isOverRightHalf = $.ui.isOverAxis(this.positionAbs.left + this.offset.click.left, item.left + (item.width/2), item.width),
499 verticalDirection = this._getDragVerticalDirection(),
500 horizontalDirection = this._getDragHorizontalDirection();
501
502 if (this.floating && horizontalDirection) {
503 return ((horizontalDirection == "right" && isOverRightHalf) || (horizontalDirection == "left" && !isOverRightHalf));
504 } else {
505 return verticalDirection && ((verticalDirection == "down" && isOverBottomHalf) || (verticalDirection == "up" && !isOverBottomHalf));
506 }
507
508 },
509
510 _getDragVerticalDirection: function() {
511 var delta = this.positionAbs.top - this.lastPositionAbs.top;
512 return delta != 0 && (delta > 0 ? "down" : "up");
513 },
514
515 _getDragHorizontalDirection: function() {
516 var delta = this.positionAbs.left - this.lastPositionAbs.left;
517 return delta != 0 && (delta > 0 ? "right" : "left");
518 },
519
520 refresh: function(event) {
521 this._refreshItems(event);
522 this.refreshPositions();
523 return this;
524 },
525
526 _connectWith: function() {
527 var options = this.options;
528 return options.connectWith.constructor == String
529 ? [options.connectWith]
530 : options.connectWith;
531 },
532
533 _getItemsAsjQuery: function(connected) {
534
535 var self = this;
536 var items = [];
537 var queries = [];
538 var connectWith = this._connectWith();
539
540 if(connectWith && connected) {
541 for (var i = connectWith.length - 1; i >= 0; i--){
542 var cur = $(connectWith[i]);
543 for (var j = cur.length - 1; j >= 0; j--){
544 var inst = $.data(cur[j], this.widgetName);
545 if(inst && inst != this && !inst.options.disabled) {
546 queries.push([$.isFunction(inst.options.items) ? inst.options.items.call(inst.element) : $(inst.options.items, inst.element).not(".ui-sortable-helper").not('.ui-sortable-placeholder'), inst]);
547 }
548 };
549 };
550 }
551
552 queries.push([$.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").not('.ui-sortable-placeholder'), this]);
553
554 for (var i = queries.length - 1; i >= 0; i--){
555 queries[i][0].each(function() {
556 items.push(this);
557 });
558 };
559
560 return $(items);
561
562 },
563
564 _removeCurrentsFromItems: function() {
565
566 var list = this.currentItem.find(":data(" + this.widgetName + "-item)");
567
568 for (var i=0; i < this.items.length; i++) {
569
570 for (var j=0; j < list.length; j++) {
571 if(list[j] == this.items[i].item[0])
572 this.items.splice(i,1);
573 };
574
575 };
576
577 },
578
579 _refreshItems: function(event) {
580
581 this.items = [];
582 this.containers = [this];
583 var items = this.items;
584 var self = this;
585 var queries = [[$.isFunction(this.options.items) ? this.options.items.call(this.element[0], event, { item: this.currentItem }) : $(this.options.items, this.element), this]];
586 var connectWith = this._connectWith();
587
588 if(connectWith && this.ready) { //Shouldn't be run the first time through due to massive slow-down
589 for (var i = connectWith.length - 1; i >= 0; i--){
590 var cur = $(connectWith[i]);
591 for (var j = cur.length - 1; j >= 0; j--){
592 var inst = $.data(cur[j], this.widgetName);
593 if(inst && inst != this && !inst.options.disabled) {
594 queries.push([$.isFunction(inst.options.items) ? inst.options.items.call(inst.element[0], event, { item: this.currentItem }) : $(inst.options.items, inst.element), inst]);
595 this.containers.push(inst);
596 }
597 };
598 };
599 }
600
601 for (var i = queries.length - 1; i >= 0; i--) {
602 var targetData = queries[i][1];
603 var _queries = queries[i][0];
604
605 for (var j=0, queriesLength = _queries.length; j < queriesLength; j++) {
606 var item = $(_queries[j]);
607
608 item.data(this.widgetName + '-item', targetData); // Data for target checking (mouse manager)
609
610 items.push({
611 item: item,
612 instance: targetData,
613 width: 0, height: 0,
614 left: 0, top: 0
615 });
616 };
617 };
618
619 },
620
621 refreshPositions: function(fast) {
622
623 //This has to be redone because due to the item being moved out/into the offsetParent, the offsetParent's position will change
624 if(this.offsetParent && this.helper) {
625 this.offset.parent = this._getParentOffset();
626 }
627
628 for (var i = this.items.length - 1; i >= 0; i--){
629 var item = this.items[i];
630
631 //We ignore calculating positions of all connected containers when we're not over them
632 if(item.instance != this.currentContainer && this.currentContainer && item.item[0] != this.currentItem[0])
633 continue;
634
635 var t = this.options.toleranceElement ? $(this.options.toleranceElement, item.item) : item.item;
636
637 if (!fast) {
638 item.width = t.outerWidth();
639 item.height = t.outerHeight();
640 }
641
642 var p = t.offset();
643 item.left = p.left;
644 item.top = p.top;
645 };
646
647 if(this.options.custom && this.options.custom.refreshContainers) {
648 this.options.custom.refreshContainers.call(this);
649 } else {
650 for (var i = this.containers.length - 1; i >= 0; i--){
651 var p = this.containers[i].element.offset();
652 this.containers[i].containerCache.left = p.left;
653 this.containers[i].containerCache.top = p.top;
654 this.containers[i].containerCache.width = this.containers[i].element.outerWidth();
655 this.containers[i].containerCache.height = this.containers[i].element.outerHeight();
656 };
657 }
658
659 return this;
660 },
661
662 _createPlaceholder: function(that) {
663
664 var self = that || this, o = self.options;
665
666 if(!o.placeholder || o.placeholder.constructor == String) {
667 var className = o.placeholder;
668 o.placeholder = {
669 element: function() {
670
671 var el = $(document.createElement(self.currentItem[0].nodeName))
672 .addClass(className || self.currentItem[0].className+" ui-sortable-placeholder")
673 .removeClass("ui-sortable-helper")[0];
674
675 if(!className)
676 el.style.visibility = "hidden";
677
678 return el;
679 },
680 update: function(container, p) {
681
682 // 1. If a className is set as 'placeholder option, we don't force sizes - the class is responsible for that
683 // 2. The option 'forcePlaceholderSize can be enabled to force it even if a class name is specified
684 if(className && !o.forcePlaceholderSize) return;
685
686 //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
687 if(!p.height()) { p.height(self.currentItem.innerHeight() - parseInt(self.currentItem.css('paddingTop')||0, 10) - parseInt(self.currentItem.css('paddingBottom')||0, 10)); };
688 if(!p.width()) { p.width(self.currentItem.innerWidth() - parseInt(self.currentItem.css('paddingLeft')||0, 10) - parseInt(self.currentItem.css('paddingRight')||0, 10)); };
689 }
690 };
691 }
692
693 //Create the placeholder
694 self.placeholder = $(o.placeholder.element.call(self.element, self.currentItem));
695
696 //Append it after the actual current item
697 self.currentItem.after(self.placeholder);
698
699 //Update the size of the placeholder (TODO: Logic to fuzzy, see line 316/317)
700 o.placeholder.update(self, self.placeholder);
701
702 },
703
704 _contactContainers: function(event) {
705
706 // get innermost container that intersects with item
707 var innermostContainer = null, innermostIndex = null;
708
709
710 for (var i = this.containers.length - 1; i >= 0; i--){
711
712 // never consider a container that's located within the item itself
713 if($.ui.contains(this.currentItem[0], this.containers[i].element[0]))
714 continue;
715
716 if(this._intersectsWith(this.containers[i].containerCache)) {
717
718 // if we've already found a container and it's more "inner" than this, then continue
719 if(innermostContainer && $.ui.contains(this.containers[i].element[0], innermostContainer.element[0]))
720 continue;
721
722 innermostContainer = this.containers[i];
723 innermostIndex = i;
724
725 } else {
726 // container doesn't intersect. trigger "out" event if necessary
727 if(this.containers[i].containerCache.over) {
728 this.containers[i]._trigger("out", event, this._uiHash(this));
729 this.containers[i].containerCache.over = 0;
730 }
731 }
732
733 }
734
735 // if no intersecting containers found, return
736 if(!innermostContainer) return;
737
738 // move the item into the container if it's not there already
739 if(this.containers.length === 1) {
740 this.containers[innermostIndex]._trigger("over", event, this._uiHash(this));
741 this.containers[innermostIndex].containerCache.over = 1;
742 } else if(this.currentContainer != this.containers[innermostIndex]) {
743
744 //When entering a new container, we will find the item with the least distance and append our item near it
745 var dist = 10000; var itemWithLeastDistance = null; var base = this.positionAbs[this.containers[innermostIndex].floating ? 'left' : 'top'];
746 for (var j = this.items.length - 1; j >= 0; j--) {
747 if(!$.ui.contains(this.containers[innermostIndex].element[0], this.items[j].item[0])) continue;
748 var cur = this.containers[innermostIndex].floating ? this.items[j].item.offset().left : this.items[j].item.offset().top;
749 if(Math.abs(cur - base) < dist) {
750 dist = Math.abs(cur - base); itemWithLeastDistance = this.items[j];
751 this.direction = (cur - base > 0) ? 'down' : 'up';
752 }
753 }
754
755 if(!itemWithLeastDistance && !this.options.dropOnEmpty) //Check if dropOnEmpty is enabled
756 return;
757
758 this.currentContainer = this.containers[innermostIndex];
759 itemWithLeastDistance ? this._rearrange(event, itemWithLeastDistance, null, true) : this._rearrange(event, null, this.containers[innermostIndex].element, true);
760 this._trigger("change", event, this._uiHash());
761 this.containers[innermostIndex]._trigger("change", event, this._uiHash(this));
762
763 //Update the placeholder
764 this.options.placeholder.update(this.currentContainer, this.placeholder);
765
766 this.containers[innermostIndex]._trigger("over", event, this._uiHash(this));
767 this.containers[innermostIndex].containerCache.over = 1;
768 }
769
770
771 },
772
773 _createHelper: function(event) {
774
775 var o = this.options;
776 var helper = $.isFunction(o.helper) ? $(o.helper.apply(this.element[0], [event, this.currentItem])) : (o.helper == 'clone' ? this.currentItem.clone() : this.currentItem);
777
778 if(!helper.parents('body').length) //Add the helper to the DOM if that didn't happen already
779 $(o.appendTo != 'parent' ? o.appendTo : this.currentItem[0].parentNode)[0].appendChild(helper[0]);
780
781 if(helper[0] == this.currentItem[0])
782 this._storedCSS = { width: this.currentItem[0].style.width, height: this.currentItem[0].style.height, position: this.currentItem.css("position"), top: this.currentItem.css("top"), left: this.currentItem.css("left") };
783
784 if(helper[0].style.width == '' || o.forceHelperSize) helper.width(this.currentItem.width());
785 if(helper[0].style.height == '' || o.forceHelperSize) helper.height(this.currentItem.height());
786
787 return helper;
788
789 },
790
791 _adjustOffsetFromHelper: function(obj) {
792 if (typeof obj == 'string') {
793 obj = obj.split(' ');
794 }
795 if ($.isArray(obj)) {
796 obj = {left: +obj[0], top: +obj[1] || 0};
797 }
798 if ('left' in obj) {
799 this.offset.click.left = obj.left + this.margins.left;
800 }
801 if ('right' in obj) {
802 this.offset.click.left = this.helperProportions.width - obj.right + this.margins.left;
803 }
804 if ('top' in obj) {
805 this.offset.click.top = obj.top + this.margins.top;
806 }
807 if ('bottom' in obj) {
808 this.offset.click.top = this.helperProportions.height - obj.bottom + this.margins.top;
809 }
810 },
811
812 _getParentOffset: function() {
813
814
815 //Get the offsetParent and cache its position
816 this.offsetParent = this.helper.offsetParent();
817 var po = this.offsetParent.offset();
818
819 // This is a special case where we need to modify a offset calculated on start, since the following happened:
820 // 1. The position of the helper is absolute, so it's position is calculated based on the next positioned parent
821 // 2. The actual offset parent is a child of the scroll parent, and the scroll parent isn't the document, which means that
822 // the scroll is included in the initial calculation of the offset of the parent, and never recalculated upon drag
823 if(this.cssPosition == 'absolute' && this.scrollParent[0] != document && $.ui.contains(this.scrollParent[0], this.offsetParent[0])) {
824 po.left += this.scrollParent.scrollLeft();
825 po.top += this.scrollParent.scrollTop();
826 }
827
828 if((this.offsetParent[0] == document.body) //This needs to be actually done for all browsers, since pageX/pageY includes this information
829 || (this.offsetParent[0].tagName && this.offsetParent[0].tagName.toLowerCase() == 'html' && $.browser.msie)) //Ugly IE fix
830 po = { top: 0, left: 0 };
831
832 return {
833 top: po.top + (parseInt(this.offsetParent.css("borderTopWidth"),10) || 0),
834 left: po.left + (parseInt(this.offsetParent.css("borderLeftWidth"),10) || 0)
835 };
836
837 },
838
839 _getRelativeOffset: function() {
840
841 if(this.cssPosition == "relative") {
842 var p = this.currentItem.position();
843 return {
844 top: p.top - (parseInt(this.helper.css("top"),10) || 0) + this.scrollParent.scrollTop(),
845 left: p.left - (parseInt(this.helper.css("left"),10) || 0) + this.scrollParent.scrollLeft()
846 };
847 } else {
848 return { top: 0, left: 0 };
849 }
850
851 },
852
853 _cacheMargins: function() {
854 this.margins = {
855 left: (parseInt(this.currentItem.css("marginLeft"),10) || 0),
856 top: (parseInt(this.currentItem.css("marginTop"),10) || 0)
857 };
858 },
859
860 _cacheHelperProportions: function() {
861 this.helperProportions = {
862 width: this.helper.outerWidth(),
863 height: this.helper.outerHeight()
864 };
865 },
866
867 _setContainment: function() {
868
869 var o = this.options;
870 if(o.containment == 'parent') o.containment = this.helper[0].parentNode;
871 if(o.containment == 'document' || o.containment == 'window') this.containment = [
872 0 - this.offset.relative.left - this.offset.parent.left,
873 0 - this.offset.relative.top - this.offset.parent.top,
874 $(o.containment == 'document' ? document : window).width() - this.helperProportions.width - this.margins.left,
875 ($(o.containment == 'document' ? document : window).height() || document.body.parentNode.scrollHeight) - this.helperProportions.height - this.margins.top
876 ];
877
878 if(!(/^(document|window|parent)$/).test(o.containment)) {
879 var ce = $(o.containment)[0];
880 var co = $(o.containment).offset();
881 var over = ($(ce).css("overflow") != 'hidden');
882
883 this.containment = [
884 co.left + (parseInt($(ce).css("borderLeftWidth"),10) || 0) + (parseInt($(ce).css("paddingLeft"),10) || 0) - this.margins.left,
885 co.top + (parseInt($(ce).css("borderTopWidth"),10) || 0) + (parseInt($(ce).css("paddingTop"),10) || 0) - this.margins.top,
886 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,
887 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
888 ];
889 }
890
891 },
892
893 _convertPositionTo: function(d, pos) {
894
895 if(!pos) pos = this.position;
896 var mod = d == "absolute" ? 1 : -1;
897 var o = this.options, scroll = this.cssPosition == 'absolute' && !(this.scrollParent[0] != document && $.ui.contains(this.scrollParent[0], this.offsetParent[0])) ? this.offsetParent : this.scrollParent, scrollIsRootNode = (/(html|body)/i).test(scroll[0].tagName);
898
899 return {
900 top: (
901 pos.top // The absolute mouse position
902 + this.offset.relative.top * mod // Only for relative positioned nodes: Relative offset from element to offset parent
903 + this.offset.parent.top * mod // The offsetParent's offset without borders (offset + border)
904 - ($.browser.safari && this.cssPosition == 'fixed' ? 0 : ( this.cssPosition == 'fixed' ? -this.scrollParent.scrollTop() : ( scrollIsRootNode ? 0 : scroll.scrollTop() ) ) * mod)
905 ),
906 left: (
907 pos.left // The absolute mouse position
908 + this.offset.relative.left * mod // Only for relative positioned nodes: Relative offset from element to offset parent
909 + this.offset.parent.left * mod // The offsetParent's offset without borders (offset + border)
910 - ($.browser.safari && this.cssPosition == 'fixed' ? 0 : ( this.cssPosition == 'fixed' ? -this.scrollParent.scrollLeft() : scrollIsRootNode ? 0 : scroll.scrollLeft() ) * mod)
911 )
912 };
913
914 },
915
916 _generatePosition: function(event) {
917
918 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);
919
920 // This is another very weird special case that only happens for relative elements:
921 // 1. If the css position is relative
922 // 2. and the scroll parent is the document or similar to the offset parent
923 // we have to refresh the relative offset during the scroll so there are no jumps
924 if(this.cssPosition == 'relative' && !(this.scrollParent[0] != document && this.scrollParent[0] != this.offsetParent[0])) {
925 this.offset.relative = this._getRelativeOffset();
926 }
927
928 var pageX = event.pageX;
929 var pageY = event.pageY;
930
931 /*
932 * - Position constraining -
933 * Constrain the position to a mix of grid, containment.
934 */
935
936 if(this.originalPosition) { //If we are not dragging yet, we won't check for options
937
938 if(this.containment) {
939 if(event.pageX - this.offset.click.left < this.containment[0]) pageX = this.containment[0] + this.offset.click.left;
940 if(event.pageY - this.offset.click.top < this.containment[1]) pageY = this.containment[1] + this.offset.click.top;
941 if(event.pageX - this.offset.click.left > this.containment[2]) pageX = this.containment[2] + this.offset.click.left;
942 if(event.pageY - this.offset.click.top > this.containment[3]) pageY = this.containment[3] + this.offset.click.top;
943 }
944
945 if(o.grid) {
946 var top = this.originalPageY + Math.round((pageY - this.originalPageY) / o.grid[1]) * o.grid[1];
947 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;
948
949 var left = this.originalPageX + Math.round((pageX - this.originalPageX) / o.grid[0]) * o.grid[0];
950 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;
951 }
952
953 }
954
955 return {
956 top: (
957 pageY // The absolute mouse position
958 - this.offset.click.top // Click offset (relative to the element)
959 - this.offset.relative.top // Only for relative positioned nodes: Relative offset from element to offset parent
960 - this.offset.parent.top // The offsetParent's offset without borders (offset + border)
961 + ($.browser.safari && this.cssPosition == 'fixed' ? 0 : ( this.cssPosition == 'fixed' ? -this.scrollParent.scrollTop() : ( scrollIsRootNode ? 0 : scroll.scrollTop() ) ))
962 ),
963 left: (
964 pageX // The absolute mouse position
965 - this.offset.click.left // Click offset (relative to the element)
966 - this.offset.relative.left // Only for relative positioned nodes: Relative offset from element to offset parent
967 - this.offset.parent.left // The offsetParent's offset without borders (offset + border)
968 + ($.browser.safari && this.cssPosition == 'fixed' ? 0 : ( this.cssPosition == 'fixed' ? -this.scrollParent.scrollLeft() : scrollIsRootNode ? 0 : scroll.scrollLeft() ))
969 )
970 };
971
972 },
973
974 _rearrange: function(event, i, a, hardRefresh) {
975
976 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));
977
978 //Various things done here to improve the performance:
979 // 1. we create a setTimeout, that calls refreshPositions
980 // 2. on the instance, we have a counter variable, that get's higher after every append
981 // 3. on the local scope, we copy the counter variable, and check in the timeout, if it's still the same
982 // 4. this lets only the last addition to the timeout stack through
983 this.counter = this.counter ? ++this.counter : 1;
984 var self = this, counter = this.counter;
985
986 window.setTimeout(function() {
987 if(counter == self.counter) self.refreshPositions(!hardRefresh); //Precompute after each DOM insertion, NOT on mousemove
988 },0);
989
990 },
991
992 _clear: function(event, noPropagation) {
993
994 this.reverting = false;
995 // We delay all events that have to be triggered to after the point where the placeholder has been removed and
996 // everything else normalized again
997 var delayedTriggers = [], self = this;
998
999 // We first have to update the dom position of the actual currentItem
1000 // Note: don't do it if the current item is already removed (by a user), or it gets reappended (see #4088)
1001 if(!this._noFinalSort && this.currentItem.parent().length) this.placeholder.before(this.currentItem);
1002 this._noFinalSort = null;
1003
1004 if(this.helper[0] == this.currentItem[0]) {
1005 for(var i in this._storedCSS) {
1006 if(this._storedCSS[i] == 'auto' || this._storedCSS[i] == 'static') this._storedCSS[i] = '';
1007 }
1008 this.currentItem.css(this._storedCSS).removeClass("ui-sortable-helper");
1009 } else {
1010 this.currentItem.show();
1011 }
1012
1013 if(this.fromOutside && !noPropagation) delayedTriggers.push(function(event) { this._trigger("receive", event, this._uiHash(this.fromOutside)); });
1014 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
1015
1016 // Check if the items Container has Changed and trigger appropriate
1017 // events.
1018 if (this !== this.currentContainer) {
1019 if(!noPropagation) {
1020 delayedTriggers.push(function(event) { this._trigger("remove", event, this._uiHash()); });
1021 delayedTriggers.push((function(c) { return function(event) { c._trigger("receive", event, this._uiHash(this)); }; }).call(this, this.currentContainer));
1022 delayedTriggers.push((function(c) { return function(event) { c._trigger("update", event, this._uiHash(this)); }; }).call(this, this.currentContainer));
1023 }
1024 }
1025
1026 //Post events to containers
1027 for (var i = this.containers.length - 1; i >= 0; i--){
1028 if(!noPropagation) delayedTriggers.push((function(c) { return function(event) { c._trigger("deactivate", event, this._uiHash(this)); }; }).call(this, this.containers[i]));
1029 if(this.containers[i].containerCache.over) {
1030 delayedTriggers.push((function(c) { return function(event) { c._trigger("out", event, this._uiHash(this)); }; }).call(this, this.containers[i]));
1031 this.containers[i].containerCache.over = 0;
1032 }
1033 }
1034
1035 //Do what was originally in plugins
1036 if(this._storedCursor) $('body').css("cursor", this._storedCursor); //Reset cursor
1037 if(this._storedOpacity) this.helper.css("opacity", this._storedOpacity); //Reset opacity
1038 if(this._storedZIndex) this.helper.css("zIndex", this._storedZIndex == 'auto' ? '' : this._storedZIndex); //Reset z-index
1039
1040 this.dragging = false;
1041 if(this.cancelHelperRemoval) {
1042 if(!noPropagation) {
1043 this._trigger("beforeStop", event, this._uiHash());
1044 for (var i=0; i < delayedTriggers.length; i++) { delayedTriggers[i].call(this, event); }; //Trigger all delayed events
1045 this._trigger("stop", event, this._uiHash());
1046 }
1047
1048 this.fromOutside = false;
1049 return false;
1050 }
1051
1052 if(!noPropagation) this._trigger("beforeStop", event, this._uiHash());
1053
1054 //$(this.placeholder[0]).remove(); would have been the jQuery way - unfortunately, it unbinds ALL events from the original node!
1055 this.placeholder[0].parentNode.removeChild(this.placeholder[0]);
1056
1057 if(this.helper[0] != this.currentItem[0]) this.helper.remove(); this.helper = null;
1058
1059 if(!noPropagation) {
1060 for (var i=0; i < delayedTriggers.length; i++) { delayedTriggers[i].call(this, event); }; //Trigger all delayed events
1061 this._trigger("stop", event, this._uiHash());
1062 }
1063
1064 this.fromOutside = false;
1065 return true;
1066
1067 },
1068
1069 _trigger: function() {
1070 if ($.Widget.prototype._trigger.apply(this, arguments) === false) {
1071 this.cancel();
1072 }
1073 },
1074
1075 _uiHash: function(inst) {
1076 var self = inst || this;
1077 return {
1078 helper: self.helper,
1079 placeholder: self.placeholder || $([]),
1080 position: self.position,
1081 originalPosition: self.originalPosition,
1082 offset: self.positionAbs,
1083 item: self.currentItem,
1084 sender: inst ? inst.element : null
1085 };
1086 }
1087
1088 });
1089
1090 $.extend($.ui.sortable, {
1091 version: "1.8.24"
1092 });
1093
1094 })(jQuery);
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