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jquery.ui: Collapse border in ui-helper-clearfix
[lhc/web/wiklou.git] / resources / lib / jquery.ui / jquery.ui.sortable.js
1 /*!
2 * jQuery UI Sortable 1.9.2
3 * http://jqueryui.com
4 *
5 * Copyright 2012 jQuery Foundation and other contributors
6 * Released under the MIT license.
7 * http://jquery.org/license
8 *
9 * http://api.jqueryui.com/sortable/
10 *
11 * Depends:
12 * jquery.ui.core.js
13 * jquery.ui.mouse.js
14 * jquery.ui.widget.js
15 */
16 (function( $, undefined ) {
17
18 $.widget("ui.sortable", $.ui.mouse, {
19 version: "1.9.2",
20 widgetEventPrefix: "sort",
21 ready: false,
22 options: {
23 appendTo: "parent",
24 axis: false,
25 connectWith: false,
26 containment: false,
27 cursor: 'auto',
28 cursorAt: false,
29 dropOnEmpty: true,
30 forcePlaceholderSize: false,
31 forceHelperSize: false,
32 grid: false,
33 handle: false,
34 helper: "original",
35 items: '> *',
36 opacity: false,
37 placeholder: false,
38 revert: false,
39 scroll: true,
40 scrollSensitivity: 20,
41 scrollSpeed: 20,
42 scope: "default",
43 tolerance: "intersect",
44 zIndex: 1000
45 },
46 _create: function() {
47
48 var o = this.options;
49 this.containerCache = {};
50 this.element.addClass("ui-sortable");
51
52 //Get the items
53 this.refresh();
54
55 //Let's determine if the items are being displayed horizontally
56 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;
57
58 //Let's determine the parent's offset
59 this.offset = this.element.offset();
60
61 //Initialize mouse events for interaction
62 this._mouseInit();
63
64 //We're ready to go
65 this.ready = true
66
67 },
68
69 _destroy: function() {
70 this.element
71 .removeClass("ui-sortable ui-sortable-disabled");
72 this._mouseDestroy();
73
74 for ( var i = this.items.length - 1; i >= 0; i-- )
75 this.items[i].item.removeData(this.widgetName + "-item");
76
77 return this;
78 },
79
80 _setOption: function(key, value){
81 if ( key === "disabled" ) {
82 this.options[ key ] = value;
83
84 this.widget().toggleClass( "ui-sortable-disabled", !!value );
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, nodes = $(event.target).parents().each(function() {
105 if($.data(this, that.widgetName + '-item') == that) {
106 currentItem = $(this);
107 return false;
108 }
109 });
110 if($.data(event.target, that.widgetName + '-item') == that) 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;
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 $('body').css("cursor", o.cursor);
198 }
199
200 if(o.opacity) { // opacity option
201 if (this.helper.css("opacity")) this._storedOpacity = this.helper.css("opacity");
202 this.helper.css("opacity", o.opacity);
203 }
204
205 if(o.zIndex) { // zIndex option
206 if (this.helper.css("zIndex")) this._storedZIndex = this.helper.css("zIndex");
207 this.helper.css("zIndex", o.zIndex);
208 }
209
210 //Prepare scrolling
211 if(this.scrollParent[0] != document && this.scrollParent[0].tagName != 'HTML')
212 this.overflowOffset = this.scrollParent.offset();
213
214 //Call callbacks
215 this._trigger("start", event, this._uiHash());
216
217 //Recache the helper size
218 if(!this._preserveHelperProportions)
219 this._cacheHelperProportions();
220
221
222 //Post 'activate' events to possible containers
223 if(!noActivation) {
224 for (var i = this.containers.length - 1; i >= 0; i--) { this.containers[i]._trigger("activate", event, this._uiHash(this)); }
225 }
226
227 //Prepare possible droppables
228 if($.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 $.ui.ddmanager.prepareOffsets(this, event);
283 }
284
285 //Regenerate the absolute position used for position checks
286 this.positionAbs = this._convertPositionTo("absolute");
287
288 //Set the helper position
289 if(!this.options.axis || this.options.axis != "y") this.helper[0].style.left = this.position.left+'px';
290 if(!this.options.axis || this.options.axis != "x") this.helper[0].style.top = this.position.top+'px';
291
292 //Rearrange
293 for (var i = this.items.length - 1; i >= 0; i--) {
294
295 //Cache variables and intersection, continue if no intersection
296 var item = this.items[i], itemElement = item.item[0], intersection = this._intersectsWithPointer(item);
297 if (!intersection) continue;
298
299 // Only put the placeholder inside the current Container, skip all
300 // items form other containers. This works because when moving
301 // an item from one container to another the
302 // currentContainer is switched before the placeholder is moved.
303 //
304 // Without this moving items in "sub-sortables" can cause the placeholder to jitter
305 // beetween the outer and inner container.
306 if (item.instance !== this.currentContainer) continue;
307
308 if (itemElement != this.currentItem[0] //cannot intersect with itself
309 && this.placeholder[intersection == 1 ? "next" : "prev"]()[0] != itemElement //no useless actions that have been done before
310 && !$.contains(this.placeholder[0], itemElement) //no action if the item moved is the parent of the item checked
311 && (this.options.type == 'semi-dynamic' ? !$.contains(this.element[0], itemElement) : true)
312 //&& itemElement.parentNode == this.placeholder[0].parentNode // only rearrange items within the same container
313 ) {
314
315 this.direction = intersection == 1 ? "down" : "up";
316
317 if (this.options.tolerance == "pointer" || this._intersectsWithSides(item)) {
318 this._rearrange(event, item);
319 } else {
320 break;
321 }
322
323 this._trigger("change", event, this._uiHash());
324 break;
325 }
326 }
327
328 //Post events to containers
329 this._contactContainers(event);
330
331 //Interconnect with droppables
332 if($.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 that = this;
352 var cur = this.placeholder.offset();
353
354 this.reverting = true;
355
356 $(this.helper).animate({
357 left: cur.left - this.offset.parent.left - this.margins.left + (this.offsetParent[0] == document.body ? 0 : this.offsetParent[0].scrollLeft),
358 top: cur.top - this.offset.parent.top - this.margins.top + (this.offsetParent[0] == document.body ? 0 : this.offsetParent[0].scrollTop)
359 }, parseInt(this.options.revert, 10) || 500, function() {
360 that._clear(event);
361 });
362 } else {
363 this._clear(event, noPropagation);
364 }
365
366 return false;
367
368 },
369
370 cancel: function() {
371
372 if(this.dragging) {
373
374 this._mouseUp({ target: null });
375
376 if(this.options.helper == "original")
377 this.currentItem.css(this._storedCSS).removeClass("ui-sortable-helper");
378 else
379 this.currentItem.show();
380
381 //Post deactivating events to containers
382 for (var i = this.containers.length - 1; i >= 0; i--){
383 this.containers[i]._trigger("deactivate", null, this._uiHash(this));
384 if(this.containers[i].containerCache.over) {
385 this.containers[i]._trigger("out", null, this._uiHash(this));
386 this.containers[i].containerCache.over = 0;
387 }
388 }
389
390 }
391
392 if (this.placeholder) {
393 //$(this.placeholder[0]).remove(); would have been the jQuery way - unfortunately, it unbinds ALL events from the original node!
394 if(this.placeholder[0].parentNode) this.placeholder[0].parentNode.removeChild(this.placeholder[0]);
395 if(this.options.helper != "original" && this.helper && this.helper[0].parentNode) this.helper.remove();
396
397 $.extend(this, {
398 helper: null,
399 dragging: false,
400 reverting: false,
401 _noFinalSort: null
402 });
403
404 if(this.domPosition.prev) {
405 $(this.domPosition.prev).after(this.currentItem);
406 } else {
407 $(this.domPosition.parent).prepend(this.currentItem);
408 }
409 }
410
411 return this;
412
413 },
414
415 serialize: function(o) {
416
417 var items = this._getItemsAsjQuery(o && o.connected);
418 var str = []; o = o || {};
419
420 $(items).each(function() {
421 var res = ($(o.item || this).attr(o.attribute || 'id') || '').match(o.expression || (/(.+)[-=_](.+)/));
422 if(res) str.push((o.key || res[1]+'[]')+'='+(o.key && o.expression ? res[1] : res[2]));
423 });
424
425 if(!str.length && o.key) {
426 str.push(o.key + '=');
427 }
428
429 return str.join('&');
430
431 },
432
433 toArray: function(o) {
434
435 var items = this._getItemsAsjQuery(o && o.connected);
436 var ret = []; o = o || {};
437
438 items.each(function() { ret.push($(o.item || this).attr(o.attribute || 'id') || ''); });
439 return ret;
440
441 },
442
443 /* Be careful with the following core functions */
444 _intersectsWith: function(item) {
445
446 var x1 = this.positionAbs.left,
447 x2 = x1 + this.helperProportions.width,
448 y1 = this.positionAbs.top,
449 y2 = y1 + this.helperProportions.height;
450
451 var l = item.left,
452 r = l + item.width,
453 t = item.top,
454 b = t + item.height;
455
456 var dyClick = this.offset.click.top,
457 dxClick = this.offset.click.left;
458
459 var isOverElement = (y1 + dyClick) > t && (y1 + dyClick) < b && (x1 + dxClick) > l && (x1 + dxClick) < r;
460
461 if( this.options.tolerance == "pointer"
462 || this.options.forcePointerForContainers
463 || (this.options.tolerance != "pointer" && this.helperProportions[this.floating ? 'width' : 'height'] > item[this.floating ? 'width' : 'height'])
464 ) {
465 return isOverElement;
466 } else {
467
468 return (l < x1 + (this.helperProportions.width / 2) // Right Half
469 && x2 - (this.helperProportions.width / 2) < r // Left Half
470 && t < y1 + (this.helperProportions.height / 2) // Bottom Half
471 && y2 - (this.helperProportions.height / 2) < b ); // Top Half
472
473 }
474 },
475
476 _intersectsWithPointer: function(item) {
477
478 var isOverElementHeight = (this.options.axis === 'x') || $.ui.isOverAxis(this.positionAbs.top + this.offset.click.top, item.top, item.height),
479 isOverElementWidth = (this.options.axis === 'y') || $.ui.isOverAxis(this.positionAbs.left + this.offset.click.left, item.left, item.width),
480 isOverElement = isOverElementHeight && isOverElementWidth,
481 verticalDirection = this._getDragVerticalDirection(),
482 horizontalDirection = this._getDragHorizontalDirection();
483
484 if (!isOverElement)
485 return false;
486
487 return this.floating ?
488 ( ((horizontalDirection && horizontalDirection == "right") || verticalDirection == "down") ? 2 : 1 )
489 : ( verticalDirection && (verticalDirection == "down" ? 2 : 1) );
490
491 },
492
493 _intersectsWithSides: function(item) {
494
495 var isOverBottomHalf = $.ui.isOverAxis(this.positionAbs.top + this.offset.click.top, item.top + (item.height/2), item.height),
496 isOverRightHalf = $.ui.isOverAxis(this.positionAbs.left + this.offset.click.left, item.left + (item.width/2), item.width),
497 verticalDirection = this._getDragVerticalDirection(),
498 horizontalDirection = this._getDragHorizontalDirection();
499
500 if (this.floating && horizontalDirection) {
501 return ((horizontalDirection == "right" && isOverRightHalf) || (horizontalDirection == "left" && !isOverRightHalf));
502 } else {
503 return verticalDirection && ((verticalDirection == "down" && isOverBottomHalf) || (verticalDirection == "up" && !isOverBottomHalf));
504 }
505
506 },
507
508 _getDragVerticalDirection: function() {
509 var delta = this.positionAbs.top - this.lastPositionAbs.top;
510 return delta != 0 && (delta > 0 ? "down" : "up");
511 },
512
513 _getDragHorizontalDirection: function() {
514 var delta = this.positionAbs.left - this.lastPositionAbs.left;
515 return delta != 0 && (delta > 0 ? "right" : "left");
516 },
517
518 refresh: function(event) {
519 this._refreshItems(event);
520 this.refreshPositions();
521 return this;
522 },
523
524 _connectWith: function() {
525 var options = this.options;
526 return options.connectWith.constructor == String
527 ? [options.connectWith]
528 : options.connectWith;
529 },
530
531 _getItemsAsjQuery: function(connected) {
532
533 var items = [];
534 var queries = [];
535 var connectWith = this._connectWith();
536
537 if(connectWith && connected) {
538 for (var i = connectWith.length - 1; i >= 0; i--){
539 var cur = $(connectWith[i]);
540 for (var j = cur.length - 1; j >= 0; j--){
541 var inst = $.data(cur[j], this.widgetName);
542 if(inst && inst != this && !inst.options.disabled) {
543 queries.push([$.isFunction(inst.options.items) ? inst.options.items.call(inst.element) : $(inst.options.items, inst.element).not(".ui-sortable-helper").not('.ui-sortable-placeholder'), inst]);
544 }
545 };
546 };
547 }
548
549 queries.push([$.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]);
550
551 for (var i = queries.length - 1; i >= 0; i--){
552 queries[i][0].each(function() {
553 items.push(this);
554 });
555 };
556
557 return $(items);
558
559 },
560
561 _removeCurrentsFromItems: function() {
562
563 var list = this.currentItem.find(":data(" + this.widgetName + "-item)");
564
565 this.items = $.grep(this.items, function (item) {
566 for (var j=0; j < list.length; j++) {
567 if(list[j] == item.item[0])
568 return false;
569 };
570 return true;
571 });
572
573 },
574
575 _refreshItems: function(event) {
576
577 this.items = [];
578 this.containers = [this];
579 var items = this.items;
580 var queries = [[$.isFunction(this.options.items) ? this.options.items.call(this.element[0], event, { item: this.currentItem }) : $(this.options.items, this.element), this]];
581 var connectWith = this._connectWith();
582
583 if(connectWith && this.ready) { //Shouldn't be run the first time through due to massive slow-down
584 for (var i = connectWith.length - 1; i >= 0; i--){
585 var cur = $(connectWith[i]);
586 for (var j = cur.length - 1; j >= 0; j--){
587 var inst = $.data(cur[j], this.widgetName);
588 if(inst && inst != this && !inst.options.disabled) {
589 queries.push([$.isFunction(inst.options.items) ? inst.options.items.call(inst.element[0], event, { item: this.currentItem }) : $(inst.options.items, inst.element), inst]);
590 this.containers.push(inst);
591 }
592 };
593 };
594 }
595
596 for (var i = queries.length - 1; i >= 0; i--) {
597 var targetData = queries[i][1];
598 var _queries = queries[i][0];
599
600 for (var j=0, queriesLength = _queries.length; j < queriesLength; j++) {
601 var item = $(_queries[j]);
602
603 item.data(this.widgetName + '-item', targetData); // Data for target checking (mouse manager)
604
605 items.push({
606 item: item,
607 instance: targetData,
608 width: 0, height: 0,
609 left: 0, top: 0
610 });
611 };
612 };
613
614 },
615
616 refreshPositions: function(fast) {
617
618 //This has to be redone because due to the item being moved out/into the offsetParent, the offsetParent's position will change
619 if(this.offsetParent && this.helper) {
620 this.offset.parent = this._getParentOffset();
621 }
622
623 for (var i = this.items.length - 1; i >= 0; i--){
624 var item = this.items[i];
625
626 //We ignore calculating positions of all connected containers when we're not over them
627 if(item.instance != this.currentContainer && this.currentContainer && item.item[0] != this.currentItem[0])
628 continue;
629
630 var t = this.options.toleranceElement ? $(this.options.toleranceElement, item.item) : item.item;
631
632 if (!fast) {
633 item.width = t.outerWidth();
634 item.height = t.outerHeight();
635 }
636
637 var p = t.offset();
638 item.left = p.left;
639 item.top = p.top;
640 };
641
642 if(this.options.custom && this.options.custom.refreshContainers) {
643 this.options.custom.refreshContainers.call(this);
644 } else {
645 for (var i = this.containers.length - 1; i >= 0; i--){
646 var p = this.containers[i].element.offset();
647 this.containers[i].containerCache.left = p.left;
648 this.containers[i].containerCache.top = p.top;
649 this.containers[i].containerCache.width = this.containers[i].element.outerWidth();
650 this.containers[i].containerCache.height = this.containers[i].element.outerHeight();
651 };
652 }
653
654 return this;
655 },
656
657 _createPlaceholder: function(that) {
658 that = that || this;
659 var o = that.options;
660
661 if(!o.placeholder || o.placeholder.constructor == String) {
662 var className = o.placeholder;
663 o.placeholder = {
664 element: function() {
665
666 var el = $(document.createElement(that.currentItem[0].nodeName))
667 .addClass(className || that.currentItem[0].className+" ui-sortable-placeholder")
668 .removeClass("ui-sortable-helper")[0];
669
670 if(!className)
671 el.style.visibility = "hidden";
672
673 return el;
674 },
675 update: function(container, p) {
676
677 // 1. If a className is set as 'placeholder option, we don't force sizes - the class is responsible for that
678 // 2. The option 'forcePlaceholderSize can be enabled to force it even if a class name is specified
679 if(className && !o.forcePlaceholderSize) return;
680
681 //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
682 if(!p.height()) { p.height(that.currentItem.innerHeight() - parseInt(that.currentItem.css('paddingTop')||0, 10) - parseInt(that.currentItem.css('paddingBottom')||0, 10)); };
683 if(!p.width()) { p.width(that.currentItem.innerWidth() - parseInt(that.currentItem.css('paddingLeft')||0, 10) - parseInt(that.currentItem.css('paddingRight')||0, 10)); };
684 }
685 };
686 }
687
688 //Create the placeholder
689 that.placeholder = $(o.placeholder.element.call(that.element, that.currentItem));
690
691 //Append it after the actual current item
692 that.currentItem.after(that.placeholder);
693
694 //Update the size of the placeholder (TODO: Logic to fuzzy, see line 316/317)
695 o.placeholder.update(that, that.placeholder);
696
697 },
698
699 _contactContainers: function(event) {
700
701 // get innermost container that intersects with item
702 var innermostContainer = null, innermostIndex = null;
703
704
705 for (var i = this.containers.length - 1; i >= 0; i--){
706
707 // never consider a container that's located within the item itself
708 if($.contains(this.currentItem[0], this.containers[i].element[0]))
709 continue;
710
711 if(this._intersectsWith(this.containers[i].containerCache)) {
712
713 // if we've already found a container and it's more "inner" than this, then continue
714 if(innermostContainer && $.contains(this.containers[i].element[0], innermostContainer.element[0]))
715 continue;
716
717 innermostContainer = this.containers[i];
718 innermostIndex = i;
719
720 } else {
721 // container doesn't intersect. trigger "out" event if necessary
722 if(this.containers[i].containerCache.over) {
723 this.containers[i]._trigger("out", event, this._uiHash(this));
724 this.containers[i].containerCache.over = 0;
725 }
726 }
727
728 }
729
730 // if no intersecting containers found, return
731 if(!innermostContainer) return;
732
733 // move the item into the container if it's not there already
734 if(this.containers.length === 1) {
735 this.containers[innermostIndex]._trigger("over", event, this._uiHash(this));
736 this.containers[innermostIndex].containerCache.over = 1;
737 } else {
738
739 //When entering a new container, we will find the item with the least distance and append our item near it
740 var dist = 10000; var itemWithLeastDistance = null;
741 var posProperty = this.containers[innermostIndex].floating ? 'left' : 'top';
742 var sizeProperty = this.containers[innermostIndex].floating ? 'width' : 'height';
743 var base = this.positionAbs[posProperty] + this.offset.click[posProperty];
744 for (var j = this.items.length - 1; j >= 0; j--) {
745 if(!$.contains(this.containers[innermostIndex].element[0], this.items[j].item[0])) continue;
746 if(this.items[j].item[0] == this.currentItem[0]) continue;
747 var cur = this.items[j].item.offset()[posProperty];
748 var nearBottom = false;
749 if(Math.abs(cur - base) > Math.abs(cur + this.items[j][sizeProperty] - base)){
750 nearBottom = true;
751 cur += this.items[j][sizeProperty];
752 }
753
754 if(Math.abs(cur - base) < dist) {
755 dist = Math.abs(cur - base); itemWithLeastDistance = this.items[j];
756 this.direction = nearBottom ? "up": "down";
757 }
758 }
759
760 if(!itemWithLeastDistance && !this.options.dropOnEmpty) //Check if dropOnEmpty is enabled
761 return;
762
763 this.currentContainer = this.containers[innermostIndex];
764 itemWithLeastDistance ? this._rearrange(event, itemWithLeastDistance, null, true) : this._rearrange(event, null, this.containers[innermostIndex].element, true);
765 this._trigger("change", event, this._uiHash());
766 this.containers[innermostIndex]._trigger("change", event, this._uiHash(this));
767
768 //Update the placeholder
769 this.options.placeholder.update(this.currentContainer, this.placeholder);
770
771 this.containers[innermostIndex]._trigger("over", event, this._uiHash(this));
772 this.containers[innermostIndex].containerCache.over = 1;
773 }
774
775
776 },
777
778 _createHelper: function(event) {
779
780 var o = this.options;
781 var helper = $.isFunction(o.helper) ? $(o.helper.apply(this.element[0], [event, this.currentItem])) : (o.helper == 'clone' ? this.currentItem.clone() : this.currentItem);
782
783 if(!helper.parents('body').length) //Add the helper to the DOM if that didn't happen already
784 $(o.appendTo != 'parent' ? o.appendTo : this.currentItem[0].parentNode)[0].appendChild(helper[0]);
785
786 if(helper[0] == this.currentItem[0])
787 this._storedCSS = { width: this.currentItem[0].style.width, height: this.currentItem[0].style.height, position: this.currentItem.css("position"), top: this.currentItem.css("top"), left: this.currentItem.css("left") };
788
789 if(helper[0].style.width == '' || o.forceHelperSize) helper.width(this.currentItem.width());
790 if(helper[0].style.height == '' || o.forceHelperSize) helper.height(this.currentItem.height());
791
792 return helper;
793
794 },
795
796 _adjustOffsetFromHelper: function(obj) {
797 if (typeof obj == 'string') {
798 obj = obj.split(' ');
799 }
800 if ($.isArray(obj)) {
801 obj = {left: +obj[0], top: +obj[1] || 0};
802 }
803 if ('left' in obj) {
804 this.offset.click.left = obj.left + this.margins.left;
805 }
806 if ('right' in obj) {
807 this.offset.click.left = this.helperProportions.width - obj.right + this.margins.left;
808 }
809 if ('top' in obj) {
810 this.offset.click.top = obj.top + this.margins.top;
811 }
812 if ('bottom' in obj) {
813 this.offset.click.top = this.helperProportions.height - obj.bottom + this.margins.top;
814 }
815 },
816
817 _getParentOffset: function() {
818
819
820 //Get the offsetParent and cache its position
821 this.offsetParent = this.helper.offsetParent();
822 var po = this.offsetParent.offset();
823
824 // This is a special case where we need to modify a offset calculated on start, since the following happened:
825 // 1. The position of the helper is absolute, so it's position is calculated based on the next positioned parent
826 // 2. The actual offset parent is a child of the scroll parent, and the scroll parent isn't the document, which means that
827 // the scroll is included in the initial calculation of the offset of the parent, and never recalculated upon drag
828 if(this.cssPosition == 'absolute' && this.scrollParent[0] != document && $.contains(this.scrollParent[0], this.offsetParent[0])) {
829 po.left += this.scrollParent.scrollLeft();
830 po.top += this.scrollParent.scrollTop();
831 }
832
833 if((this.offsetParent[0] == document.body) //This needs to be actually done for all browsers, since pageX/pageY includes this information
834 || (this.offsetParent[0].tagName && this.offsetParent[0].tagName.toLowerCase() == 'html' && $.ui.ie)) //Ugly IE fix
835 po = { top: 0, left: 0 };
836
837 return {
838 top: po.top + (parseInt(this.offsetParent.css("borderTopWidth"),10) || 0),
839 left: po.left + (parseInt(this.offsetParent.css("borderLeftWidth"),10) || 0)
840 };
841
842 },
843
844 _getRelativeOffset: function() {
845
846 if(this.cssPosition == "relative") {
847 var p = this.currentItem.position();
848 return {
849 top: p.top - (parseInt(this.helper.css("top"),10) || 0) + this.scrollParent.scrollTop(),
850 left: p.left - (parseInt(this.helper.css("left"),10) || 0) + this.scrollParent.scrollLeft()
851 };
852 } else {
853 return { top: 0, left: 0 };
854 }
855
856 },
857
858 _cacheMargins: function() {
859 this.margins = {
860 left: (parseInt(this.currentItem.css("marginLeft"),10) || 0),
861 top: (parseInt(this.currentItem.css("marginTop"),10) || 0)
862 };
863 },
864
865 _cacheHelperProportions: function() {
866 this.helperProportions = {
867 width: this.helper.outerWidth(),
868 height: this.helper.outerHeight()
869 };
870 },
871
872 _setContainment: function() {
873
874 var o = this.options;
875 if(o.containment == 'parent') o.containment = this.helper[0].parentNode;
876 if(o.containment == 'document' || o.containment == 'window') this.containment = [
877 0 - this.offset.relative.left - this.offset.parent.left,
878 0 - this.offset.relative.top - this.offset.parent.top,
879 $(o.containment == 'document' ? document : window).width() - this.helperProportions.width - this.margins.left,
880 ($(o.containment == 'document' ? document : window).height() || document.body.parentNode.scrollHeight) - this.helperProportions.height - this.margins.top
881 ];
882
883 if(!(/^(document|window|parent)$/).test(o.containment)) {
884 var ce = $(o.containment)[0];
885 var co = $(o.containment).offset();
886 var over = ($(ce).css("overflow") != 'hidden');
887
888 this.containment = [
889 co.left + (parseInt($(ce).css("borderLeftWidth"),10) || 0) + (parseInt($(ce).css("paddingLeft"),10) || 0) - this.margins.left,
890 co.top + (parseInt($(ce).css("borderTopWidth"),10) || 0) + (parseInt($(ce).css("paddingTop"),10) || 0) - this.margins.top,
891 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,
892 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
893 ];
894 }
895
896 },
897
898 _convertPositionTo: function(d, pos) {
899
900 if(!pos) pos = this.position;
901 var mod = d == "absolute" ? 1 : -1;
902 var o = this.options, scroll = this.cssPosition == 'absolute' && !(this.scrollParent[0] != document && $.contains(this.scrollParent[0], this.offsetParent[0])) ? this.offsetParent : this.scrollParent, scrollIsRootNode = (/(html|body)/i).test(scroll[0].tagName);
903
904 return {
905 top: (
906 pos.top // The absolute mouse position
907 + this.offset.relative.top * mod // Only for relative positioned nodes: Relative offset from element to offset parent
908 + this.offset.parent.top * mod // The offsetParent's offset without borders (offset + border)
909 - ( ( this.cssPosition == 'fixed' ? -this.scrollParent.scrollTop() : ( scrollIsRootNode ? 0 : scroll.scrollTop() ) ) * mod)
910 ),
911 left: (
912 pos.left // The absolute mouse position
913 + this.offset.relative.left * mod // Only for relative positioned nodes: Relative offset from element to offset parent
914 + this.offset.parent.left * mod // The offsetParent's offset without borders (offset + border)
915 - ( ( this.cssPosition == 'fixed' ? -this.scrollParent.scrollLeft() : scrollIsRootNode ? 0 : scroll.scrollLeft() ) * mod)
916 )
917 };
918
919 },
920
921 _generatePosition: function(event) {
922
923 var o = this.options, scroll = this.cssPosition == 'absolute' && !(this.scrollParent[0] != document && $.contains(this.scrollParent[0], this.offsetParent[0])) ? this.offsetParent : this.scrollParent, scrollIsRootNode = (/(html|body)/i).test(scroll[0].tagName);
924
925 // This is another very weird special case that only happens for relative elements:
926 // 1. If the css position is relative
927 // 2. and the scroll parent is the document or similar to the offset parent
928 // we have to refresh the relative offset during the scroll so there are no jumps
929 if(this.cssPosition == 'relative' && !(this.scrollParent[0] != document && this.scrollParent[0] != this.offsetParent[0])) {
930 this.offset.relative = this._getRelativeOffset();
931 }
932
933 var pageX = event.pageX;
934 var pageY = event.pageY;
935
936 /*
937 * - Position constraining -
938 * Constrain the position to a mix of grid, containment.
939 */
940
941 if(this.originalPosition) { //If we are not dragging yet, we won't check for options
942
943 if(this.containment) {
944 if(event.pageX - this.offset.click.left < this.containment[0]) pageX = this.containment[0] + this.offset.click.left;
945 if(event.pageY - this.offset.click.top < this.containment[1]) pageY = this.containment[1] + this.offset.click.top;
946 if(event.pageX - this.offset.click.left > this.containment[2]) pageX = this.containment[2] + this.offset.click.left;
947 if(event.pageY - this.offset.click.top > this.containment[3]) pageY = this.containment[3] + this.offset.click.top;
948 }
949
950 if(o.grid) {
951 var top = this.originalPageY + Math.round((pageY - this.originalPageY) / o.grid[1]) * o.grid[1];
952 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;
953
954 var left = this.originalPageX + Math.round((pageX - this.originalPageX) / o.grid[0]) * o.grid[0];
955 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;
956 }
957
958 }
959
960 return {
961 top: (
962 pageY // The absolute mouse position
963 - this.offset.click.top // Click offset (relative to the element)
964 - this.offset.relative.top // Only for relative positioned nodes: Relative offset from element to offset parent
965 - this.offset.parent.top // The offsetParent's offset without borders (offset + border)
966 + ( ( this.cssPosition == 'fixed' ? -this.scrollParent.scrollTop() : ( scrollIsRootNode ? 0 : scroll.scrollTop() ) ))
967 ),
968 left: (
969 pageX // The absolute mouse position
970 - this.offset.click.left // Click offset (relative to the element)
971 - this.offset.relative.left // Only for relative positioned nodes: Relative offset from element to offset parent
972 - this.offset.parent.left // The offsetParent's offset without borders (offset + border)
973 + ( ( this.cssPosition == 'fixed' ? -this.scrollParent.scrollLeft() : scrollIsRootNode ? 0 : scroll.scrollLeft() ))
974 )
975 };
976
977 },
978
979 _rearrange: function(event, i, a, hardRefresh) {
980
981 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));
982
983 //Various things done here to improve the performance:
984 // 1. we create a setTimeout, that calls refreshPositions
985 // 2. on the instance, we have a counter variable, that get's higher after every append
986 // 3. on the local scope, we copy the counter variable, and check in the timeout, if it's still the same
987 // 4. this lets only the last addition to the timeout stack through
988 this.counter = this.counter ? ++this.counter : 1;
989 var counter = this.counter;
990
991 this._delay(function() {
992 if(counter == this.counter) this.refreshPositions(!hardRefresh); //Precompute after each DOM insertion, NOT on mousemove
993 });
994
995 },
996
997 _clear: function(event, noPropagation) {
998
999 this.reverting = false;
1000 // We delay all events that have to be triggered to after the point where the placeholder has been removed and
1001 // everything else normalized again
1002 var delayedTriggers = [];
1003
1004 // We first have to update the dom position of the actual currentItem
1005 // Note: don't do it if the current item is already removed (by a user), or it gets reappended (see #4088)
1006 if(!this._noFinalSort && this.currentItem.parent().length) this.placeholder.before(this.currentItem);
1007 this._noFinalSort = null;
1008
1009 if(this.helper[0] == this.currentItem[0]) {
1010 for(var i in this._storedCSS) {
1011 if(this._storedCSS[i] == 'auto' || this._storedCSS[i] == 'static') this._storedCSS[i] = '';
1012 }
1013 this.currentItem.css(this._storedCSS).removeClass("ui-sortable-helper");
1014 } else {
1015 this.currentItem.show();
1016 }
1017
1018 if(this.fromOutside && !noPropagation) delayedTriggers.push(function(event) { this._trigger("receive", event, this._uiHash(this.fromOutside)); });
1019 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
1020
1021 // Check if the items Container has Changed and trigger appropriate
1022 // events.
1023 if (this !== this.currentContainer) {
1024 if(!noPropagation) {
1025 delayedTriggers.push(function(event) { this._trigger("remove", event, this._uiHash()); });
1026 delayedTriggers.push((function(c) { return function(event) { c._trigger("receive", event, this._uiHash(this)); }; }).call(this, this.currentContainer));
1027 delayedTriggers.push((function(c) { return function(event) { c._trigger("update", event, this._uiHash(this)); }; }).call(this, this.currentContainer));
1028 }
1029 }
1030
1031
1032 //Post events to containers
1033 for (var i = this.containers.length - 1; i >= 0; i--){
1034 if(!noPropagation) delayedTriggers.push((function(c) { return function(event) { c._trigger("deactivate", event, this._uiHash(this)); }; }).call(this, this.containers[i]));
1035 if(this.containers[i].containerCache.over) {
1036 delayedTriggers.push((function(c) { return function(event) { c._trigger("out", event, this._uiHash(this)); }; }).call(this, this.containers[i]));
1037 this.containers[i].containerCache.over = 0;
1038 }
1039 }
1040
1041 //Do what was originally in plugins
1042 if(this._storedCursor) $('body').css("cursor", this._storedCursor); //Reset cursor
1043 if(this._storedOpacity) this.helper.css("opacity", this._storedOpacity); //Reset opacity
1044 if(this._storedZIndex) this.helper.css("zIndex", this._storedZIndex == 'auto' ? '' : this._storedZIndex); //Reset z-index
1045
1046 this.dragging = false;
1047 if(this.cancelHelperRemoval) {
1048 if(!noPropagation) {
1049 this._trigger("beforeStop", event, this._uiHash());
1050 for (var i=0; i < delayedTriggers.length; i++) { delayedTriggers[i].call(this, event); }; //Trigger all delayed events
1051 this._trigger("stop", event, this._uiHash());
1052 }
1053
1054 this.fromOutside = false;
1055 return false;
1056 }
1057
1058 if(!noPropagation) this._trigger("beforeStop", event, this._uiHash());
1059
1060 //$(this.placeholder[0]).remove(); would have been the jQuery way - unfortunately, it unbinds ALL events from the original node!
1061 this.placeholder[0].parentNode.removeChild(this.placeholder[0]);
1062
1063 if(this.helper[0] != this.currentItem[0]) this.helper.remove(); this.helper = null;
1064
1065 if(!noPropagation) {
1066 for (var i=0; i < delayedTriggers.length; i++) { delayedTriggers[i].call(this, event); }; //Trigger all delayed events
1067 this._trigger("stop", event, this._uiHash());
1068 }
1069
1070 this.fromOutside = false;
1071 return true;
1072
1073 },
1074
1075 _trigger: function() {
1076 if ($.Widget.prototype._trigger.apply(this, arguments) === false) {
1077 this.cancel();
1078 }
1079 },
1080
1081 _uiHash: function(_inst) {
1082 var inst = _inst || this;
1083 return {
1084 helper: inst.helper,
1085 placeholder: inst.placeholder || $([]),
1086 position: inst.position,
1087 originalPosition: inst.originalPosition,
1088 offset: inst.positionAbs,
1089 item: inst.currentItem,
1090 sender: _inst ? _inst.element : null
1091 };
1092 }
1093
1094 });
1095
1096 })(jQuery);
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