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comparison war/scripts/jQuery/ui/jquery.ui.sortable.js @ 3:cf06b77a8bbd

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Committed branch of the e4D repos sti-gwt branch 16384. git-svn-id: http://dev.dariah.eu/svn/repos/eu.dariah.de/ap1/sti-gwt-dariah-geobrowser@36 f2b5be40-def6-11e0-8a09-b3c1cc336c6b
author StefanFunk <StefanFunk@f2b5be40-def6-11e0-8a09-b3c1cc336c6b>
date Tue, 17 Jul 2012 13:34:40 +0000
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2:2897af43ccc6 3:cf06b77a8bbd
1 /*
2 * jQuery UI Sortable 1.8.14
3 *
4 * Copyright 2011, 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 options: {
20 appendTo: "parent",
21 axis: false,
22 connectWith: false,
23 containment: false,
24 cursor: 'auto',
25 cursorAt: false,
26 dropOnEmpty: true,
27 forcePlaceholderSize: false,
28 forceHelperSize: false,
29 grid: false,
30 handle: false,
31 helper: "original",
32 items: '> *',
33 opacity: false,
34 placeholder: false,
35 revert: false,
36 scroll: true,
37 scrollSensitivity: 20,
38 scrollSpeed: 20,
39 scope: "default",
40 tolerance: "intersect",
41 zIndex: 1000
42 },
43 _create: function() {
44
45 var o = this.options;
46 this.containerCache = {};
47 this.element.addClass("ui-sortable");
48
49 //Get the items
50 this.refresh();
51
52 //Let's determine if the items are being displayed horizontally
53 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;
54
55 //Let's determine the parent's offset
56 this.offset = this.element.offset();
57
58 //Initialize mouse events for interaction
59 this._mouseInit();
60
61 },
62
63 destroy: function() {
64 this.element
65 .removeClass("ui-sortable ui-sortable-disabled")
66 .removeData("sortable")
67 .unbind(".sortable");
68 this._mouseDestroy();
69
70 for ( var i = this.items.length - 1; i >= 0; i-- )
71 this.items[i].item.removeData("sortable-item");
72
73 return this;
74 },
75
76 _setOption: function(key, value){
77 if ( key === "disabled" ) {
78 this.options[ key ] = value;
79
80 this.widget()
81 [ value ? "addClass" : "removeClass"]( "ui-sortable-disabled" );
82 } else {
83 // Don't call widget base _setOption for disable as it adds ui-state-disabled class
84 $.Widget.prototype._setOption.apply(this, arguments);
85 }
86 },
87
88 _mouseCapture: function(event, overrideHandle) {
89
90 if (this.reverting) {
91 return false;
92 }
93
94 if(this.options.disabled || this.options.type == 'static') return false;
95
96 //We have to refresh the items data once first
97 this._refreshItems(event);
98
99 //Find out if the clicked node (or one of its parents) is a actual item in this.items
100 var currentItem = null, self = this, nodes = $(event.target).parents().each(function() {
101 if($.data(this, 'sortable-item') == self) {
102 currentItem = $(this);
103 return false;
104 }
105 });
106 if($.data(event.target, 'sortable-item') == self) currentItem = $(event.target);
107
108 if(!currentItem) return false;
109 if(this.options.handle && !overrideHandle) {
110 var validHandle = false;
111
112 $(this.options.handle, currentItem).find("*").andSelf().each(function() { if(this == event.target) validHandle = true; });
113 if(!validHandle) return false;
114 }
115
116 this.currentItem = currentItem;
117 this._removeCurrentsFromItems();
118 return true;
119
120 },
121
122 _mouseStart: function(event, overrideHandle, noActivation) {
123
124 var o = this.options, self = this;
125 this.currentContainer = this;
126
127 //We only need to call refreshPositions, because the refreshItems call has been moved to mouseCapture
128 this.refreshPositions();
129
130 //Create and append the visible helper
131 this.helper = this._createHelper(event);
132
133 //Cache the helper size
134 this._cacheHelperProportions();
135
136 /*
137 * - Position generation -
138 * This block generates everything position related - it's the core of draggables.
139 */
140
141 //Cache the margins of the original element
142 this._cacheMargins();
143
144 //Get the next scrolling parent
145 this.scrollParent = this.helper.scrollParent();
146
147 //The element's absolute position on the page minus margins
148 this.offset = this.currentItem.offset();
149 this.offset = {
150 top: this.offset.top - this.margins.top,
151 left: this.offset.left - this.margins.left
152 };
153
154 // Only after we got the offset, we can change the helper's position to absolute
155 // TODO: Still need to figure out a way to make relative sorting possible
156 this.helper.css("position", "absolute");
157 this.cssPosition = this.helper.css("position");
158
159 $.extend(this.offset, {
160 click: { //Where the click happened, relative to the element
161 left: event.pageX - this.offset.left,
162 top: event.pageY - this.offset.top
163 },
164 parent: this._getParentOffset(),
165 relative: this._getRelativeOffset() //This is a relative to absolute position minus the actual position calculation - only used for relative positioned helper
166 });
167
168 //Generate the original position
169 this.originalPosition = this._generatePosition(event);
170 this.originalPageX = event.pageX;
171 this.originalPageY = event.pageY;
172
173 //Adjust the mouse offset relative to the helper if 'cursorAt' is supplied
174 (o.cursorAt && this._adjustOffsetFromHelper(o.cursorAt));
175
176 //Cache the former DOM position
177 this.domPosition = { prev: this.currentItem.prev()[0], parent: this.currentItem.parent()[0] };
178
179 //If the helper is not the original, hide the original so it's not playing any role during the drag, won't cause anything bad this way
180 if(this.helper[0] != this.currentItem[0]) {
181 this.currentItem.hide();
182 }
183
184 //Create the placeholder
185 this._createPlaceholder();
186
187 //Set a containment if given in the options
188 if(o.containment)
189 this._setContainment();
190
191 if(o.cursor) { // cursor option
192 if ($('body').css("cursor")) this._storedCursor = $('body').css("cursor");
193 $('body').css("cursor", o.cursor);
194 }
195
196 if(o.opacity) { // opacity option
197 if (this.helper.css("opacity")) this._storedOpacity = this.helper.css("opacity");
198 this.helper.css("opacity", o.opacity);
199 }
200
201 if(o.zIndex) { // zIndex option
202 if (this.helper.css("zIndex")) this._storedZIndex = this.helper.css("zIndex");
203 this.helper.css("zIndex", o.zIndex);
204 }
205
206 //Prepare scrolling
207 if(this.scrollParent[0] != document && this.scrollParent[0].tagName != 'HTML')
208 this.overflowOffset = this.scrollParent.offset();
209
210 //Call callbacks
211 this._trigger("start", event, this._uiHash());
212
213 //Recache the helper size
214 if(!this._preserveHelperProportions)
215 this._cacheHelperProportions();
216
217
218 //Post 'activate' events to possible containers
219 if(!noActivation) {
220 for (var i = this.containers.length - 1; i >= 0; i--) { this.containers[i]._trigger("activate", event, self._uiHash(this)); }
221 }
222
223 //Prepare possible droppables
224 if($.ui.ddmanager)
225 $.ui.ddmanager.current = this;
226
227 if ($.ui.ddmanager && !o.dropBehaviour)
228 $.ui.ddmanager.prepareOffsets(this, event);
229
230 this.dragging = true;
231
232 this.helper.addClass("ui-sortable-helper");
233 this._mouseDrag(event); //Execute the drag once - this causes the helper not to be visible before getting its correct position
234 return true;
235
236 },
237
238 _mouseDrag: function(event) {
239
240 //Compute the helpers position
241 this.position = this._generatePosition(event);
242 this.positionAbs = this._convertPositionTo("absolute");
243
244 if (!this.lastPositionAbs) {
245 this.lastPositionAbs = this.positionAbs;
246 }
247
248 //Do scrolling
249 if(this.options.scroll) {
250 var o = this.options, scrolled = false;
251 if(this.scrollParent[0] != document && this.scrollParent[0].tagName != 'HTML') {
252
253 if((this.overflowOffset.top + this.scrollParent[0].offsetHeight) - event.pageY < o.scrollSensitivity)
254 this.scrollParent[0].scrollTop = scrolled = this.scrollParent[0].scrollTop + o.scrollSpeed;
255 else if(event.pageY - this.overflowOffset.top < o.scrollSensitivity)
256 this.scrollParent[0].scrollTop = scrolled = this.scrollParent[0].scrollTop - o.scrollSpeed;
257
258 if((this.overflowOffset.left + this.scrollParent[0].offsetWidth) - event.pageX < o.scrollSensitivity)
259 this.scrollParent[0].scrollLeft = scrolled = this.scrollParent[0].scrollLeft + o.scrollSpeed;
260 else if(event.pageX - this.overflowOffset.left < o.scrollSensitivity)
261 this.scrollParent[0].scrollLeft = scrolled = this.scrollParent[0].scrollLeft - o.scrollSpeed;
262
263 } else {
264
265 if(event.pageY - $(document).scrollTop() < o.scrollSensitivity)
266 scrolled = $(document).scrollTop($(document).scrollTop() - o.scrollSpeed);
267 else if($(window).height() - (event.pageY - $(document).scrollTop()) < o.scrollSensitivity)
268 scrolled = $(document).scrollTop($(document).scrollTop() + o.scrollSpeed);
269
270 if(event.pageX - $(document).scrollLeft() < o.scrollSensitivity)
271 scrolled = $(document).scrollLeft($(document).scrollLeft() - o.scrollSpeed);
272 else if($(window).width() - (event.pageX - $(document).scrollLeft()) < o.scrollSensitivity)
273 scrolled = $(document).scrollLeft($(document).scrollLeft() + o.scrollSpeed);
274
275 }
276
277 if(scrolled !== false && $.ui.ddmanager && !o.dropBehaviour)
278 $.ui.ddmanager.prepareOffsets(this, event);
279 }
280
281 //Regenerate the absolute position used for position checks
282 this.positionAbs = this._convertPositionTo("absolute");
283
284 //Set the helper position
285 if(!this.options.axis || this.options.axis != "y") this.helper[0].style.left = this.position.left+'px';
286 if(!this.options.axis || this.options.axis != "x") this.helper[0].style.top = this.position.top+'px';
287
288 //Rearrange
289 for (var i = this.items.length - 1; i >= 0; i--) {
290
291 //Cache variables and intersection, continue if no intersection
292 var item = this.items[i], itemElement = item.item[0], intersection = this._intersectsWithPointer(item);
293 if (!intersection) continue;
294
295 if(itemElement != this.currentItem[0] //cannot intersect with itself
296 && this.placeholder[intersection == 1 ? "next" : "prev"]()[0] != itemElement //no useless actions that have been done before
297 && !$.ui.contains(this.placeholder[0], itemElement) //no action if the item moved is the parent of the item checked
298 && (this.options.type == 'semi-dynamic' ? !$.ui.contains(this.element[0], itemElement) : true)
299 //&& itemElement.parentNode == this.placeholder[0].parentNode // only rearrange items within the same container
300 ) {
301
302 this.direction = intersection == 1 ? "down" : "up";
303
304 if (this.options.tolerance == "pointer" || this._intersectsWithSides(item)) {
305 this._rearrange(event, item);
306 } else {
307 break;
308 }
309
310 this._trigger("change", event, this._uiHash());
311 break;
312 }
313 }
314
315 //Post events to containers
316 this._contactContainers(event);
317
318 //Interconnect with droppables
319 if($.ui.ddmanager) $.ui.ddmanager.drag(this, event);
320
321 //Call callbacks
322 this._trigger('sort', event, this._uiHash());
323
324 this.lastPositionAbs = this.positionAbs;
325 return false;
326
327 },
328
329 _mouseStop: function(event, noPropagation) {
330
331 if(!event) return;
332
333 //If we are using droppables, inform the manager about the drop
334 if ($.ui.ddmanager && !this.options.dropBehaviour)
335 $.ui.ddmanager.drop(this, event);
336
337 if(this.options.revert) {
338 var self = this;
339 var cur = self.placeholder.offset();
340
341 self.reverting = true;
342
343 $(this.helper).animate({
344 left: cur.left - this.offset.parent.left - self.margins.left + (this.offsetParent[0] == document.body ? 0 : this.offsetParent[0].scrollLeft),
345 top: cur.top - this.offset.parent.top - self.margins.top + (this.offsetParent[0] == document.body ? 0 : this.offsetParent[0].scrollTop)
346 }, parseInt(this.options.revert, 10) || 500, function() {
347 self._clear(event);
348 });
349 } else {
350 this._clear(event, noPropagation);
351 }
352
353 return false;
354
355 },
356
357 cancel: function() {
358
359 var self = this;
360
361 if(this.dragging) {
362
363 this._mouseUp({ target: null });
364
365 if(this.options.helper == "original")
366 this.currentItem.css(this._storedCSS).removeClass("ui-sortable-helper");
367 else
368 this.currentItem.show();
369
370 //Post deactivating events to containers
371 for (var i = this.containers.length - 1; i >= 0; i--){
372 this.containers[i]._trigger("deactivate", null, self._uiHash(this));
373 if(this.containers[i].containerCache.over) {
374 this.containers[i]._trigger("out", null, self._uiHash(this));
375 this.containers[i].containerCache.over = 0;
376 }
377 }
378
379 }
380
381 if (this.placeholder) {
382 //$(this.placeholder[0]).remove(); would have been the jQuery way - unfortunately, it unbinds ALL events from the original node!
383 if(this.placeholder[0].parentNode) this.placeholder[0].parentNode.removeChild(this.placeholder[0]);
384 if(this.options.helper != "original" && this.helper && this.helper[0].parentNode) this.helper.remove();
385
386 $.extend(this, {
387 helper: null,
388 dragging: false,
389 reverting: false,
390 _noFinalSort: null
391 });
392
393 if(this.domPosition.prev) {
394 $(this.domPosition.prev).after(this.currentItem);
395 } else {
396 $(this.domPosition.parent).prepend(this.currentItem);
397 }
398 }
399
400 return this;
401
402 },
403
404 serialize: function(o) {
405
406 var items = this._getItemsAsjQuery(o && o.connected);
407 var str = []; o = o || {};
408
409 $(items).each(function() {
410 var res = ($(o.item || this).attr(o.attribute || 'id') || '').match(o.expression || (/(.+)[-=_](.+)/));
411 if(res) str.push((o.key || res[1]+'[]')+'='+(o.key && o.expression ? res[1] : res[2]));
412 });
413
414 if(!str.length && o.key) {
415 str.push(o.key + '=');
416 }
417
418 return str.join('&');
419
420 },
421
422 toArray: function(o) {
423
424 var items = this._getItemsAsjQuery(o && o.connected);
425 var ret = []; o = o || {};
426
427 items.each(function() { ret.push($(o.item || this).attr(o.attribute || 'id') || ''); });
428 return ret;
429
430 },
431
432 /* Be careful with the following core functions */
433 _intersectsWith: function(item) {
434
435 var x1 = this.positionAbs.left,
436 x2 = x1 + this.helperProportions.width,
437 y1 = this.positionAbs.top,
438 y2 = y1 + this.helperProportions.height;
439
440 var l = item.left,
441 r = l + item.width,
442 t = item.top,
443 b = t + item.height;
444
445 var dyClick = this.offset.click.top,
446 dxClick = this.offset.click.left;
447
448 var isOverElement = (y1 + dyClick) > t && (y1 + dyClick) < b && (x1 + dxClick) > l && (x1 + dxClick) < r;
449
450 if( this.options.tolerance == "pointer"
451 || this.options.forcePointerForContainers
452 || (this.options.tolerance != "pointer" && this.helperProportions[this.floating ? 'width' : 'height'] > item[this.floating ? 'width' : 'height'])
453 ) {
454 return isOverElement;
455 } else {
456
457 return (l < x1 + (this.helperProportions.width / 2) // Right Half
458 && x2 - (this.helperProportions.width / 2) < r // Left Half
459 && t < y1 + (this.helperProportions.height / 2) // Bottom Half
460 && y2 - (this.helperProportions.height / 2) < b ); // Top Half
461
462 }
463 },
464
465 _intersectsWithPointer: function(item) {
466
467 var isOverElementHeight = $.ui.isOverAxis(this.positionAbs.top + this.offset.click.top, item.top, item.height),
468 isOverElementWidth = $.ui.isOverAxis(this.positionAbs.left + this.offset.click.left, item.left, item.width),
469 isOverElement = isOverElementHeight && isOverElementWidth,
470 verticalDirection = this._getDragVerticalDirection(),
471 horizontalDirection = this._getDragHorizontalDirection();
472
473 if (!isOverElement)
474 return false;
475
476 return this.floating ?
477 ( ((horizontalDirection && horizontalDirection == "right") || verticalDirection == "down") ? 2 : 1 )
478 : ( verticalDirection && (verticalDirection == "down" ? 2 : 1) );
479
480 },
481
482 _intersectsWithSides: function(item) {
483
484 var isOverBottomHalf = $.ui.isOverAxis(this.positionAbs.top + this.offset.click.top, item.top + (item.height/2), item.height),
485 isOverRightHalf = $.ui.isOverAxis(this.positionAbs.left + this.offset.click.left, item.left + (item.width/2), item.width),
486 verticalDirection = this._getDragVerticalDirection(),
487 horizontalDirection = this._getDragHorizontalDirection();
488
489 if (this.floating && horizontalDirection) {
490 return ((horizontalDirection == "right" && isOverRightHalf) || (horizontalDirection == "left" && !isOverRightHalf));
491 } else {
492 return verticalDirection && ((verticalDirection == "down" && isOverBottomHalf) || (verticalDirection == "up" && !isOverBottomHalf));
493 }
494
495 },
496
497 _getDragVerticalDirection: function() {
498 var delta = this.positionAbs.top - this.lastPositionAbs.top;
499 return delta != 0 && (delta > 0 ? "down" : "up");
500 },
501
502 _getDragHorizontalDirection: function() {
503 var delta = this.positionAbs.left - this.lastPositionAbs.left;
504 return delta != 0 && (delta > 0 ? "right" : "left");
505 },
506
507 refresh: function(event) {
508 this._refreshItems(event);
509 this.refreshPositions();
510 return this;
511 },
512
513 _connectWith: function() {
514 var options = this.options;
515 return options.connectWith.constructor == String
516 ? [options.connectWith]
517 : options.connectWith;
518 },
519
520 _getItemsAsjQuery: function(connected) {
521
522 var self = this;
523 var items = [];
524 var queries = [];
525 var connectWith = this._connectWith();
526
527 if(connectWith && connected) {
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) : $(inst.options.items, inst.element).not(".ui-sortable-helper").not('.ui-sortable-placeholder'), inst]);
534 }
535 };
536 };
537 }
538
539 queries.push([$.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]);
540
541 for (var i = queries.length - 1; i >= 0; i--){
542 queries[i][0].each(function() {
543 items.push(this);
544 });
545 };
546
547 return $(items);
548
549 },
550
551 _removeCurrentsFromItems: function() {
552
553 var list = this.currentItem.find(":data(sortable-item)");
554
555 for (var i=0; i < this.items.length; i++) {
556
557 for (var j=0; j < list.length; j++) {
558 if(list[j] == this.items[i].item[0])
559 this.items.splice(i,1);
560 };
561
562 };
563
564 },
565
566 _refreshItems: function(event) {
567
568 this.items = [];
569 this.containers = [this];
570 var items = this.items;
571 var self = this;
572 var queries = [[$.isFunction(this.options.items) ? this.options.items.call(this.element[0], event, { item: this.currentItem }) : $(this.options.items, this.element), this]];
573 var connectWith = this._connectWith();
574
575 if(connectWith) {
576 for (var i = connectWith.length - 1; i >= 0; i--){
577 var cur = $(connectWith[i]);
578 for (var j = cur.length - 1; j >= 0; j--){
579 var inst = $.data(cur[j], 'sortable');
580 if(inst && inst != this && !inst.options.disabled) {
581 queries.push([$.isFunction(inst.options.items) ? inst.options.items.call(inst.element[0], event, { item: this.currentItem }) : $(inst.options.items, inst.element), inst]);
582 this.containers.push(inst);
583 }
584 };
585 };
586 }
587
588 for (var i = queries.length - 1; i >= 0; i--) {
589 var targetData = queries[i][1];
590 var _queries = queries[i][0];
591
592 for (var j=0, queriesLength = _queries.length; j < queriesLength; j++) {
593 var item = $(_queries[j]);
594
595 item.data('sortable-item', targetData); // Data for target checking (mouse manager)
596
597 items.push({
598 item: item,
599 instance: targetData,
600 width: 0, height: 0,
601 left: 0, top: 0
602 });
603 };
604 };
605
606 },
607
608 refreshPositions: function(fast) {
609
610 //This has to be redone because due to the item being moved out/into the offsetParent, the offsetParent's position will change
611 if(this.offsetParent && this.helper) {
612 this.offset.parent = this._getParentOffset();
613 }
614
615 for (var i = this.items.length - 1; i >= 0; i--){
616 var item = this.items[i];
617
618 //We ignore calculating positions of all connected containers when we're not over them
619 if(item.instance != this.currentContainer && this.currentContainer && item.item[0] != this.currentItem[0])
620 continue;
621
622 var t = this.options.toleranceElement ? $(this.options.toleranceElement, item.item) : item.item;
623
624 if (!fast) {
625 item.width = t.outerWidth();
626 item.height = t.outerHeight();
627 }
628
629 var p = t.offset();
630 item.left = p.left;
631 item.top = p.top;
632 };
633
634 if(this.options.custom && this.options.custom.refreshContainers) {
635 this.options.custom.refreshContainers.call(this);
636 } else {
637 for (var i = this.containers.length - 1; i >= 0; i--){
638 var p = this.containers[i].element.offset();
639 this.containers[i].containerCache.left = p.left;
640 this.containers[i].containerCache.top = p.top;
641 this.containers[i].containerCache.width = this.containers[i].element.outerWidth();
642 this.containers[i].containerCache.height = this.containers[i].element.outerHeight();
643 };
644 }
645
646 return this;
647 },
648
649 _createPlaceholder: function(that) {
650
651 var self = that || this, o = self.options;
652
653 if(!o.placeholder || o.placeholder.constructor == String) {
654 var className = o.placeholder;
655 o.placeholder = {
656 element: function() {
657
658 var el = $(document.createElement(self.currentItem[0].nodeName))
659 .addClass(className || self.currentItem[0].className+" ui-sortable-placeholder")
660 .removeClass("ui-sortable-helper")[0];
661
662 if(!className)
663 el.style.visibility = "hidden";
664
665 return el;
666 },
667 update: function(container, p) {
668
669 // 1. If a className is set as 'placeholder option, we don't force sizes - the class is responsible for that
670 // 2. The option 'forcePlaceholderSize can be enabled to force it even if a class name is specified
671 if(className && !o.forcePlaceholderSize) return;
672
673 //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
674 if(!p.height()) { p.height(self.currentItem.innerHeight() - parseInt(self.currentItem.css('paddingTop')||0, 10) - parseInt(self.currentItem.css('paddingBottom')||0, 10)); };
675 if(!p.width()) { p.width(self.currentItem.innerWidth() - parseInt(self.currentItem.css('paddingLeft')||0, 10) - parseInt(self.currentItem.css('paddingRight')||0, 10)); };
676 }
677 };
678 }
679
680 //Create the placeholder
681 self.placeholder = $(o.placeholder.element.call(self.element, self.currentItem));
682
683 //Append it after the actual current item
684 self.currentItem.after(self.placeholder);
685
686 //Update the size of the placeholder (TODO: Logic to fuzzy, see line 316/317)
687 o.placeholder.update(self, self.placeholder);
688
689 },
690
691 _contactContainers: function(event) {
692
693 // get innermost container that intersects with item
694 var innermostContainer = null, innermostIndex = null;
695
696
697 for (var i = this.containers.length - 1; i >= 0; i--){
698
699 // never consider a container that's located within the item itself
700 if($.ui.contains(this.currentItem[0], this.containers[i].element[0]))
701 continue;
702
703 if(this._intersectsWith(this.containers[i].containerCache)) {
704
705 // if we've already found a container and it's more "inner" than this, then continue
706 if(innermostContainer && $.ui.contains(this.containers[i].element[0], innermostContainer.element[0]))
707 continue;
708
709 innermostContainer = this.containers[i];
710 innermostIndex = i;
711
712 } else {
713 // container doesn't intersect. trigger "out" event if necessary
714 if(this.containers[i].containerCache.over) {
715 this.containers[i]._trigger("out", event, this._uiHash(this));
716 this.containers[i].containerCache.over = 0;
717 }
718 }
719
720 }
721
722 // if no intersecting containers found, return
723 if(!innermostContainer) return;
724
725 // move the item into the container if it's not there already
726 if(this.containers.length === 1) {
727 this.containers[innermostIndex]._trigger("over", event, this._uiHash(this));
728 this.containers[innermostIndex].containerCache.over = 1;
729 } else if(this.currentContainer != this.containers[innermostIndex]) {
730
731 //When entering a new container, we will find the item with the least distance and append our item near it
732 var dist = 10000; var itemWithLeastDistance = null; var base = this.positionAbs[this.containers[innermostIndex].floating ? 'left' : 'top'];
733 for (var j = this.items.length - 1; j >= 0; j--) {
734 if(!$.ui.contains(this.containers[innermostIndex].element[0], this.items[j].item[0])) continue;
735 var cur = this.items[j][this.containers[innermostIndex].floating ? 'left' : 'top'];
736 if(Math.abs(cur - base) < dist) {
737 dist = Math.abs(cur - base); itemWithLeastDistance = this.items[j];
738 }
739 }
740
741 if(!itemWithLeastDistance && !this.options.dropOnEmpty) //Check if dropOnEmpty is enabled
742 return;
743
744 this.currentContainer = this.containers[innermostIndex];
745 itemWithLeastDistance ? this._rearrange(event, itemWithLeastDistance, null, true) : this._rearrange(event, null, this.containers[innermostIndex].element, true);
746 this._trigger("change", event, this._uiHash());
747 this.containers[innermostIndex]._trigger("change", event, this._uiHash(this));
748
749 //Update the placeholder
750 this.options.placeholder.update(this.currentContainer, this.placeholder);
751
752 this.containers[innermostIndex]._trigger("over", event, this._uiHash(this));
753 this.containers[innermostIndex].containerCache.over = 1;
754 }
755
756
757 },
758
759 _createHelper: function(event) {
760
761 var o = this.options;
762 var helper = $.isFunction(o.helper) ? $(o.helper.apply(this.element[0], [event, this.currentItem])) : (o.helper == 'clone' ? this.currentItem.clone() : this.currentItem);
763
764 if(!helper.parents('body').length) //Add the helper to the DOM if that didn't happen already
765 $(o.appendTo != 'parent' ? o.appendTo : this.currentItem[0].parentNode)[0].appendChild(helper[0]);
766
767 if(helper[0] == this.currentItem[0])
768 this._storedCSS = { width: this.currentItem[0].style.width, height: this.currentItem[0].style.height, position: this.currentItem.css("position"), top: this.currentItem.css("top"), left: this.currentItem.css("left") };
769
770 if(helper[0].style.width == '' || o.forceHelperSize) helper.width(this.currentItem.width());
771 if(helper[0].style.height == '' || o.forceHelperSize) helper.height(this.currentItem.height());
772
773 return helper;
774
775 },
776
777 _adjustOffsetFromHelper: function(obj) {
778 if (typeof obj == 'string') {
779 obj = obj.split(' ');
780 }
781 if ($.isArray(obj)) {
782 obj = {left: +obj[0], top: +obj[1] || 0};
783 }
784 if ('left' in obj) {
785 this.offset.click.left = obj.left + this.margins.left;
786 }
787 if ('right' in obj) {
788 this.offset.click.left = this.helperProportions.width - obj.right + this.margins.left;
789 }
790 if ('top' in obj) {
791 this.offset.click.top = obj.top + this.margins.top;
792 }
793 if ('bottom' in obj) {
794 this.offset.click.top = this.helperProportions.height - obj.bottom + this.margins.top;
795 }
796 },
797
798 _getParentOffset: function() {
799
800
801 //Get the offsetParent and cache its position
802 this.offsetParent = this.helper.offsetParent();
803 var po = this.offsetParent.offset();
804
805 // This is a special case where we need to modify a offset calculated on start, since the following happened:
806 // 1. The position of the helper is absolute, so it's position is calculated based on the next positioned parent
807 // 2. The actual offset parent is a child of the scroll parent, and the scroll parent isn't the document, which means that
808 // the scroll is included in the initial calculation of the offset of the parent, and never recalculated upon drag
809 if(this.cssPosition == 'absolute' && this.scrollParent[0] != document && $.ui.contains(this.scrollParent[0], this.offsetParent[0])) {
810 po.left += this.scrollParent.scrollLeft();
811 po.top += this.scrollParent.scrollTop();
812 }
813
814 if((this.offsetParent[0] == document.body) //This needs to be actually done for all browsers, since pageX/pageY includes this information
815 || (this.offsetParent[0].tagName && this.offsetParent[0].tagName.toLowerCase() == 'html' && $.browser.msie)) //Ugly IE fix
816 po = { top: 0, left: 0 };
817
818 return {
819 top: po.top + (parseInt(this.offsetParent.css("borderTopWidth"),10) || 0),
820 left: po.left + (parseInt(this.offsetParent.css("borderLeftWidth"),10) || 0)
821 };
822
823 },
824
825 _getRelativeOffset: function() {
826
827 if(this.cssPosition == "relative") {
828 var p = this.currentItem.position();
829 return {
830 top: p.top - (parseInt(this.helper.css("top"),10) || 0) + this.scrollParent.scrollTop(),
831 left: p.left - (parseInt(this.helper.css("left"),10) || 0) + this.scrollParent.scrollLeft()
832 };
833 } else {
834 return { top: 0, left: 0 };
835 }
836
837 },
838
839 _cacheMargins: function() {
840 this.margins = {
841 left: (parseInt(this.currentItem.css("marginLeft"),10) || 0),
842 top: (parseInt(this.currentItem.css("marginTop"),10) || 0)
843 };
844 },
845
846 _cacheHelperProportions: function() {
847 this.helperProportions = {
848 width: this.helper.outerWidth(),
849 height: this.helper.outerHeight()
850 };
851 },
852
853 _setContainment: function() {
854
855 var o = this.options;
856 if(o.containment == 'parent') o.containment = this.helper[0].parentNode;
857 if(o.containment == 'document' || o.containment == 'window') this.containment = [
858 0 - this.offset.relative.left - this.offset.parent.left,
859 0 - this.offset.relative.top - this.offset.parent.top,
860 $(o.containment == 'document' ? document : window).width() - this.helperProportions.width - this.margins.left,
861 ($(o.containment == 'document' ? document : window).height() || document.body.parentNode.scrollHeight) - this.helperProportions.height - this.margins.top
862 ];
863
864 if(!(/^(document|window|parent)$/).test(o.containment)) {
865 var ce = $(o.containment)[0];
866 var co = $(o.containment).offset();
867 var over = ($(ce).css("overflow") != 'hidden');
868
869 this.containment = [
870 co.left + (parseInt($(ce).css("borderLeftWidth"),10) || 0) + (parseInt($(ce).css("paddingLeft"),10) || 0) - this.margins.left,
871 co.top + (parseInt($(ce).css("borderTopWidth"),10) || 0) + (parseInt($(ce).css("paddingTop"),10) || 0) - this.margins.top,
872 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,
873 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
874 ];
875 }
876
877 },
878
879 _convertPositionTo: function(d, pos) {
880
881 if(!pos) pos = this.position;
882 var mod = d == "absolute" ? 1 : -1;
883 var o = this.options, scroll = this.cssPosition == 'absolute' && !(this.scrollParent[0] != document && $.ui.contains(this.scrollParent[0], this.offsetParent[0])) ? this.offsetParent : this.scrollParent, scrollIsRootNode = (/(html|body)/i).test(scroll[0].tagName);
884
885 return {
886 top: (
887 pos.top // The absolute mouse position
888 + this.offset.relative.top * mod // Only for relative positioned nodes: Relative offset from element to offset parent
889 + this.offset.parent.top * mod // The offsetParent's offset without borders (offset + border)
890 - ($.browser.safari && this.cssPosition == 'fixed' ? 0 : ( this.cssPosition == 'fixed' ? -this.scrollParent.scrollTop() : ( scrollIsRootNode ? 0 : scroll.scrollTop() ) ) * mod)
891 ),
892 left: (
893 pos.left // The absolute mouse position
894 + this.offset.relative.left * mod // Only for relative positioned nodes: Relative offset from element to offset parent
895 + this.offset.parent.left * mod // The offsetParent's offset without borders (offset + border)
896 - ($.browser.safari && this.cssPosition == 'fixed' ? 0 : ( this.cssPosition == 'fixed' ? -this.scrollParent.scrollLeft() : scrollIsRootNode ? 0 : scroll.scrollLeft() ) * mod)
897 )
898 };
899
900 },
901
902 _generatePosition: function(event) {
903
904 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);
905
906 // This is another very weird special case that only happens for relative elements:
907 // 1. If the css position is relative
908 // 2. and the scroll parent is the document or similar to the offset parent
909 // we have to refresh the relative offset during the scroll so there are no jumps
910 if(this.cssPosition == 'relative' && !(this.scrollParent[0] != document && this.scrollParent[0] != this.offsetParent[0])) {
911 this.offset.relative = this._getRelativeOffset();
912 }
913
914 var pageX = event.pageX;
915 var pageY = event.pageY;
916
917 /*
918 * - Position constraining -
919 * Constrain the position to a mix of grid, containment.
920 */
921
922 if(this.originalPosition) { //If we are not dragging yet, we won't check for options
923
924 if(this.containment) {
925 if(event.pageX - this.offset.click.left < this.containment[0]) pageX = this.containment[0] + this.offset.click.left;
926 if(event.pageY - this.offset.click.top < this.containment[1]) pageY = this.containment[1] + this.offset.click.top;
927 if(event.pageX - this.offset.click.left > this.containment[2]) pageX = this.containment[2] + this.offset.click.left;
928 if(event.pageY - this.offset.click.top > this.containment[3]) pageY = this.containment[3] + this.offset.click.top;
929 }
930
931 if(o.grid) {
932 var top = this.originalPageY + Math.round((pageY - this.originalPageY) / o.grid[1]) * o.grid[1];
933 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;
934
935 var left = this.originalPageX + Math.round((pageX - this.originalPageX) / o.grid[0]) * o.grid[0];
936 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;
937 }
938
939 }
940
941 return {
942 top: (
943 pageY // The absolute mouse position
944 - this.offset.click.top // Click offset (relative to the element)
945 - this.offset.relative.top // Only for relative positioned nodes: Relative offset from element to offset parent
946 - this.offset.parent.top // The offsetParent's offset without borders (offset + border)
947 + ($.browser.safari && this.cssPosition == 'fixed' ? 0 : ( this.cssPosition == 'fixed' ? -this.scrollParent.scrollTop() : ( scrollIsRootNode ? 0 : scroll.scrollTop() ) ))
948 ),
949 left: (
950 pageX // The absolute mouse position
951 - this.offset.click.left // Click offset (relative to the element)
952 - this.offset.relative.left // Only for relative positioned nodes: Relative offset from element to offset parent
953 - this.offset.parent.left // The offsetParent's offset without borders (offset + border)
954 + ($.browser.safari && this.cssPosition == 'fixed' ? 0 : ( this.cssPosition == 'fixed' ? -this.scrollParent.scrollLeft() : scrollIsRootNode ? 0 : scroll.scrollLeft() ))
955 )
956 };
957
958 },
959
960 _rearrange: function(event, i, a, hardRefresh) {
961
962 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));
963
964 //Various things done here to improve the performance:
965 // 1. we create a setTimeout, that calls refreshPositions
966 // 2. on the instance, we have a counter variable, that get's higher after every append
967 // 3. on the local scope, we copy the counter variable, and check in the timeout, if it's still the same
968 // 4. this lets only the last addition to the timeout stack through
969 this.counter = this.counter ? ++this.counter : 1;
970 var self = this, counter = this.counter;
971
972 window.setTimeout(function() {
973 if(counter == self.counter) self.refreshPositions(!hardRefresh); //Precompute after each DOM insertion, NOT on mousemove
974 },0);
975
976 },
977
978 _clear: function(event, noPropagation) {
979
980 this.reverting = false;
981 // We delay all events that have to be triggered to after the point where the placeholder has been removed and
982 // everything else normalized again
983 var delayedTriggers = [], self = this;
984
985 // We first have to update the dom position of the actual currentItem
986 // Note: don't do it if the current item is already removed (by a user), or it gets reappended (see #4088)
987 if(!this._noFinalSort && this.currentItem.parent().length) this.placeholder.before(this.currentItem);
988 this._noFinalSort = null;
989
990 if(this.helper[0] == this.currentItem[0]) {
991 for(var i in this._storedCSS) {
992 if(this._storedCSS[i] == 'auto' || this._storedCSS[i] == 'static') this._storedCSS[i] = '';
993 }
994 this.currentItem.css(this._storedCSS).removeClass("ui-sortable-helper");
995 } else {
996 this.currentItem.show();
997 }
998
999 if(this.fromOutside && !noPropagation) delayedTriggers.push(function(event) { this._trigger("receive", event, this._uiHash(this.fromOutside)); });
1000 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
1001 if(!$.ui.contains(this.element[0], this.currentItem[0])) { //Node was moved out of the current element
1002 if(!noPropagation) delayedTriggers.push(function(event) { this._trigger("remove", event, this._uiHash()); });
1003 for (var i = this.containers.length - 1; i >= 0; i--){
1004 if($.ui.contains(this.containers[i].element[0], this.currentItem[0]) && !noPropagation) {
1005 delayedTriggers.push((function(c) { return function(event) { c._trigger("receive", event, this._uiHash(this)); }; }).call(this, this.containers[i]));
1006 delayedTriggers.push((function(c) { return function(event) { c._trigger("update", event, this._uiHash(this)); }; }).call(this, this.containers[i]));
1007 }
1008 };
1009 };
1010
1011 //Post events to containers
1012 for (var i = this.containers.length - 1; i >= 0; i--){
1013 if(!noPropagation) delayedTriggers.push((function(c) { return function(event) { c._trigger("deactivate", event, this._uiHash(this)); }; }).call(this, this.containers[i]));
1014 if(this.containers[i].containerCache.over) {
1015 delayedTriggers.push((function(c) { return function(event) { c._trigger("out", event, this._uiHash(this)); }; }).call(this, this.containers[i]));
1016 this.containers[i].containerCache.over = 0;
1017 }
1018 }
1019
1020 //Do what was originally in plugins
1021 if(this._storedCursor) $('body').css("cursor", this._storedCursor); //Reset cursor
1022 if(this._storedOpacity) this.helper.css("opacity", this._storedOpacity); //Reset opacity
1023 if(this._storedZIndex) this.helper.css("zIndex", this._storedZIndex == 'auto' ? '' : this._storedZIndex); //Reset z-index
1024
1025 this.dragging = false;
1026 if(this.cancelHelperRemoval) {
1027 if(!noPropagation) {
1028 this._trigger("beforeStop", event, this._uiHash());
1029 for (var i=0; i < delayedTriggers.length; i++) { delayedTriggers[i].call(this, event); }; //Trigger all delayed events
1030 this._trigger("stop", event, this._uiHash());
1031 }
1032 return false;
1033 }
1034
1035 if(!noPropagation) this._trigger("beforeStop", event, this._uiHash());
1036
1037 //$(this.placeholder[0]).remove(); would have been the jQuery way - unfortunately, it unbinds ALL events from the original node!
1038 this.placeholder[0].parentNode.removeChild(this.placeholder[0]);
1039
1040 if(this.helper[0] != this.currentItem[0]) this.helper.remove(); this.helper = null;
1041
1042 if(!noPropagation) {
1043 for (var i=0; i < delayedTriggers.length; i++) { delayedTriggers[i].call(this, event); }; //Trigger all delayed events
1044 this._trigger("stop", event, this._uiHash());
1045 }
1046
1047 this.fromOutside = false;
1048 return true;
1049
1050 },
1051
1052 _trigger: function() {
1053 if ($.Widget.prototype._trigger.apply(this, arguments) === false) {
1054 this.cancel();
1055 }
1056 },
1057
1058 _uiHash: function(inst) {
1059 var self = inst || this;
1060 return {
1061 helper: self.helper,
1062 placeholder: self.placeholder || $([]),
1063 position: self.position,
1064 originalPosition: self.originalPosition,
1065 offset: self.positionAbs,
1066 item: self.currentItem,
1067 sender: inst ? inst.element : null
1068 };
1069 }
1070
1071 });
1072
1073 $.extend($.ui.sortable, {
1074 version: "1.8.14"
1075 });
1076
1077 })(jQuery);