Dotclear

Context Navigation

source: admin/js/jquery/jquery.mjs.nestedSortable.js @ 1532:f6c9584b4677

Visit:

Revision 1532:f6c9584b4677, 13.7 KB checked in by Nicolas <nikrou77@…>, 12 years ago (diff)
Fix issue #1535 : Allow categories to be ordered by drag and drop Need to close isse #655 : duplicated

Line
1	/*
2	* jQuery UI Nested Sortable
3	* v 1.3.5 / 21 jun 2012
4	* http://mjsarfatti.com/code/nestedSortable
5	*
6	* Depends on:
7	* jquery.ui.sortable.js 1.8+
8	*
9	* Copyright (c) 2010-2012 Manuele J Sarfatti
10	* Licensed under the MIT License
11	* http://www.opensource.org/licenses/mit-license.php
12	*/
13
14	(function($) {
15
16	$.widget("mjs.nestedSortable", $.extend({}, $.ui.sortable.prototype, {
17
18	options: {
19	tabSize: 20,
20	disableNesting: 'mjs-nestedSortable-no-nesting',
21	errorClass: 'mjs-nestedSortable-error',
22	doNotClear: false,
23	listType: 'ol',
24	maxLevels: 0,
25	protectRoot: false,
26	rootID: null,
27	rtl: false,
28	isAllowed: function(item, parent) { return true; }
29	},
30
31	_create: function() {
32	this.element.data('sortable', this.element.data('nestedSortable'));
33
34	if (!this.element.is(this.options.listType))
35	throw new Error('nestedSortable: Please check the listType option is set to your actual list type');
36
37	return $.ui.sortable.prototype._create.apply(this, arguments);
38	},
39
40	destroy: function() {
41	this.element
42	.removeData("nestedSortable")
43	.unbind(".nestedSortable");
44	return $.ui.sortable.prototype.destroy.apply(this, arguments);
45	},
46
47	_mouseDrag: function(event) {
48
49	//Compute the helpers position
50	this.position = this._generatePosition(event);
51	this.positionAbs = this._convertPositionTo("absolute");
52
53	if (!this.lastPositionAbs) {
54	this.lastPositionAbs = this.positionAbs;
55	}
56
57	var o = this.options;
58
59	//Do scrolling
60	if(this.options.scroll) {
61	var scrolled = false;
62	if(this.scrollParent[0] != document && this.scrollParent[0].tagName != 'HTML') {
63
64	if((this.overflowOffset.top + this.scrollParent[0].offsetHeight) - event.pageY < o.scrollSensitivity)
65	this.scrollParent[0].scrollTop = scrolled = this.scrollParent[0].scrollTop + o.scrollSpeed;
66	else if(event.pageY - this.overflowOffset.top < o.scrollSensitivity)
67	this.scrollParent[0].scrollTop = scrolled = this.scrollParent[0].scrollTop - o.scrollSpeed;
68
69	if((this.overflowOffset.left + this.scrollParent[0].offsetWidth) - event.pageX < o.scrollSensitivity)
70	this.scrollParent[0].scrollLeft = scrolled = this.scrollParent[0].scrollLeft + o.scrollSpeed;
71	else if(event.pageX - this.overflowOffset.left < o.scrollSensitivity)
72	this.scrollParent[0].scrollLeft = scrolled = this.scrollParent[0].scrollLeft - o.scrollSpeed;
73
74	} else {
75
76	if(event.pageY - $(document).scrollTop() < o.scrollSensitivity)
77	scrolled = $(document).scrollTop($(document).scrollTop() - o.scrollSpeed);
78	else if($(window).height() - (event.pageY - $(document).scrollTop()) < o.scrollSensitivity)
79	scrolled = $(document).scrollTop($(document).scrollTop() + o.scrollSpeed);
80
81	if(event.pageX - $(document).scrollLeft() < o.scrollSensitivity)
82	scrolled = $(document).scrollLeft($(document).scrollLeft() - o.scrollSpeed);
83	else if($(window).width() - (event.pageX - $(document).scrollLeft()) < o.scrollSensitivity)
84	scrolled = $(document).scrollLeft($(document).scrollLeft() + o.scrollSpeed);
85
86	}
87
88	if(scrolled !== false && $.ui.ddmanager && !o.dropBehaviour)
89	$.ui.ddmanager.prepareOffsets(this, event);
90	}
91
92	//Regenerate the absolute position used for position checks
93	this.positionAbs = this._convertPositionTo("absolute");
94
95	// Find the top offset before rearrangement,
96	var previousTopOffset = this.placeholder.offset().top;
97
98	//Set the helper position
99	if(!this.options.axis \|\| this.options.axis != "y") this.helper[0].style.left = this.position.left+'px';
100	if(!this.options.axis \|\| this.options.axis != "x") this.helper[0].style.top = this.position.top+'px';
101
102	//Rearrange
103	for (var i = this.items.length - 1; i >= 0; i--) {
104
105	//Cache variables and intersection, continue if no intersection
106	var item = this.items[i], itemElement = item.item[0], intersection = this._intersectsWithPointer(item);
107	if (!intersection) continue;
108
109	if(itemElement != this.currentItem[0] //cannot intersect with itself
110	&& this.placeholder[intersection == 1 ? "next" : "prev"]()[0] != itemElement //no useless actions that have been done before
111	&& !$.contains(this.placeholder[0], itemElement) //no action if the item moved is the parent of the item checked
112	&& (this.options.type == 'semi-dynamic' ? !$.contains(this.element[0], itemElement) : true)
113	//&& itemElement.parentNode == this.placeholder[0].parentNode // only rearrange items within the same container
114	) {
115
116	$(itemElement).mouseenter();
117
118	this.direction = intersection == 1 ? "down" : "up";
119
120	if (this.options.tolerance == "pointer" \|\| this._intersectsWithSides(item)) {
121	$(itemElement).mouseleave();
122	this._rearrange(event, item);
123	} else {
124	break;
125	}
126
127	// Clear emtpy ul's/ol's
128	this._clearEmpty(itemElement);
129
130	this._trigger("change", event, this._uiHash());
131	break;
132	}
133	}
134
135	var parentItem = (this.placeholder[0].parentNode.parentNode &&
136	$(this.placeholder[0].parentNode.parentNode).closest('.ui-sortable').length)
137	? $(this.placeholder[0].parentNode.parentNode)
138	: null,
139	level = this._getLevel(this.placeholder),
140	childLevels = this._getChildLevels(this.helper);
141
142	// To find the previous sibling in the list, keep backtracking until we hit a valid list item.
143	var previousItem = this.placeholder[0].previousSibling ? $(this.placeholder[0].previousSibling) : null;
144	if (previousItem != null) {
145	while (previousItem[0].nodeName.toLowerCase() != 'li' \|\| previousItem[0] == this.currentItem[0] \|\| previousItem[0] == this.helper[0]) {
146	if (previousItem[0].previousSibling) {
147	previousItem = $(previousItem[0].previousSibling);
148	} else {
149	previousItem = null;
150	break;
151	}
152	}
153	}
154
155	// To find the next sibling in the list, keep stepping forward until we hit a valid list item.
156	var nextItem = this.placeholder[0].nextSibling ? $(this.placeholder[0].nextSibling) : null;
157	if (nextItem != null) {
158	while (nextItem[0].nodeName.toLowerCase() != 'li' \|\| nextItem[0] == this.currentItem[0] \|\| nextItem[0] == this.helper[0]) {
159	if (nextItem[0].nextSibling) {
160	nextItem = $(nextItem[0].nextSibling);
161	} else {
162	nextItem = null;
163	break;
164	}
165	}
166	}
167
168	var newList = document.createElement(o.listType);
169
170	this.beyondMaxLevels = 0;
171
172	// If the item is moved to the left, send it to its parent's level unless there are siblings below it.
173	if (parentItem != null && nextItem == null &&
174	(o.rtl && (this.positionAbs.left + this.helper.outerWidth() > parentItem.offset().left + parentItem.outerWidth()) \|\|
175	!o.rtl && (this.positionAbs.left < parentItem.offset().left))) {
176	parentItem.after(this.placeholder[0]);
177	this._clearEmpty(parentItem[0]);
178	this._trigger("change", event, this._uiHash());
179	}
180	// If the item is below a sibling and is moved to the right, make it a child of that sibling.
181	else if (previousItem != null &&
182	(o.rtl && (this.positionAbs.left + this.helper.outerWidth() < previousItem.offset().left + previousItem.outerWidth() - o.tabSize) \|\|
183	!o.rtl && (this.positionAbs.left > previousItem.offset().left + o.tabSize))) {
184	this._isAllowed(previousItem, level, level+childLevels+1);
185	if (!previousItem.children(o.listType).length) {
186	previousItem[0].appendChild(newList);
187	}
188	// If this item is being moved from the top, add it to the top of the list.
189	if (previousTopOffset && (previousTopOffset <= previousItem.offset().top)) {
190	previousItem.children(o.listType).prepend(this.placeholder);
191	}
192	// Otherwise, add it to the bottom of the list.
193	else {
194	previousItem.children(o.listType)[0].appendChild(this.placeholder[0]);
195	}
196	this._trigger("change", event, this._uiHash());
197	}
198	else {
199	this._isAllowed(parentItem, level, level+childLevels);
200	}
201
202	//Post events to containers
203	this._contactContainers(event);
204
205	//Interconnect with droppables
206	if($.ui.ddmanager) $.ui.ddmanager.drag(this, event);
207
208	//Call callbacks
209	this._trigger('sort', event, this._uiHash());
210
211	this.lastPositionAbs = this.positionAbs;
212	return false;
213
214	},
215
216	_mouseStop: function(event, noPropagation) {
217
218	// If the item is in a position not allowed, send it back
219	if (this.beyondMaxLevels) {
220
221	this.placeholder.removeClass(this.options.errorClass);
222
223	if (this.domPosition.prev) {
224	$(this.domPosition.prev).after(this.placeholder);
225	} else {
226	$(this.domPosition.parent).prepend(this.placeholder);
227	}
228
229	this._trigger("revert", event, this._uiHash());
230
231	}
232
233	// Clean last empty ul/ol
234	for (var i = this.items.length - 1; i >= 0; i--) {
235	var item = this.items[i].item[0];
236	this._clearEmpty(item);
237	}
238
239	$.ui.sortable.prototype._mouseStop.apply(this, arguments);
240
241	},
242
243	serialize: function(options) {
244
245	var o = $.extend({}, this.options, options),
246	items = this._getItemsAsjQuery(o && o.connected),
247	str = [];
248
249	$(items).each(function() {
250	var res = ($(o.item \|\| this).attr(o.attribute \|\| 'id') \|\| '')
251	.match(o.expression \|\| (/(.+)[-=_](.+)/)),
252	pid = ($(o.item \|\| this).parent(o.listType)
253	.parent(o.items)
254	.attr(o.attribute \|\| 'id') \|\| '')
255	.match(o.expression \|\| (/(.+)[-=_](.+)/));
256
257	if (res) {
258	str.push(((o.key \|\| res[1]) + '[' + (o.key && o.expression ? res[1] : res[2]) + ']')
259	+ '='
260	+ (pid ? (o.key && o.expression ? pid[1] : pid[2]) : o.rootID));
261	}
262	});
263
264	if(!str.length && o.key) {
265	str.push(o.key + '=');
266	}
267
268	return str.join('&');
269
270	},
271
272	toHierarchy: function(options) {
273
274	var o = $.extend({}, this.options, options),
275	sDepth = o.startDepthCount \|\| 0,
276	ret = [];
277
278	$(this.element).children(o.items).each(function () {
279	var level = _recursiveItems(this);
280	ret.push(level);
281	});
282
283	return ret;
284
285	function _recursiveItems(item) {
286	var id = ($(item).attr(o.attribute \|\| 'id') \|\| '').match(o.expression \|\| (/(.+)[-=_](.+)/));
287	if (id) {
288	var currentItem = {"id" : id[2]};
289	if ($(item).children(o.listType).children(o.items).length > 0) {
290	currentItem.children = [];
291	$(item).children(o.listType).children(o.items).each(function() {
292	var level = _recursiveItems(this);
293	currentItem.children.push(level);
294	});
295	}
296	return currentItem;
297	}
298	}
299	},
300
301	toArray: function(options) {
302
303	var o = $.extend({}, this.options, options),
304	sDepth = o.startDepthCount \|\| 0,
305	ret = [],
306	left = 2;
307
308	ret.push({
309	"item_id": o.rootID,
310	"parent_id": 'none',
311	"depth": sDepth,
312	"left": '1',
313	"right": ($(o.items, this.element).length + 1) * 2
314	});
315
316	$(this.element).children(o.items).each(function () {
317	left = _recursiveArray(this, sDepth + 1, left);
318	});
319
320	ret = ret.sort(function(a,b){ return (a.left - b.left); });
321
322	return ret;
323
324	function _recursiveArray(item, depth, left) {
325
326	var right = left + 1,
327	id,
328	pid;
329
330	if ($(item).children(o.listType).children(o.items).length > 0) {
331	depth ++;
332	$(item).children(o.listType).children(o.items).each(function () {
333	right = _recursiveArray($(this), depth, right);
334	});
335	depth --;
336	}
337
338	id = ($(item).attr(o.attribute \|\| 'id')).match(o.expression \|\| (/(.+)[-=_](.+)/));
339
340	if (depth === sDepth + 1) {
341	pid = o.rootID;
342	} else {
343	var parentItem = ($(item).parent(o.listType)
344	.parent(o.items)
345	.attr(o.attribute \|\| 'id'))
346	.match(o.expression \|\| (/(.+)[-=_](.+)/));
347	pid = parentItem[2];
348	}
349
350	if (id) {
351	ret.push({"item_id": id[2], "parent_id": pid, "depth": depth, "left": left, "right": right});
352	}
353
354	left = right + 1;
355	return left;
356	}
357
358	},
359
360	_clearEmpty: function(item) {
361
362	var emptyList = $(item).children(this.options.listType);
363	if (emptyList.length && !emptyList.children().length && !this.options.doNotClear) {
364	emptyList.remove();
365	}
366
367	},
368
369	_getLevel: function(item) {
370
371	var level = 1;
372
373	if (this.options.listType) {
374	var list = item.closest(this.options.listType);
375	while (list && list.length > 0 &&
376	!list.is('.ui-sortable')) {
377	level++;
378	list = list.parent().closest(this.options.listType);
379	}
380	}
381
382	return level;
383	},
384
385	_getChildLevels: function(parent, depth) {
386	var self = this,
387	o = this.options,
388	result = 0;
389	depth = depth \|\| 0;
390
391	$(parent).children(o.listType).children(o.items).each(function (index, child) {
392	result = Math.max(self._getChildLevels(child, depth + 1), result);
393	});
394
395	return depth ? result + 1 : result;
396	},
397
398	_isAllowed: function(parentItem, level, levels) {
399	var o = this.options,
400	isRoot = $(this.domPosition.parent).hasClass('ui-sortable') ? true : false,
401	maxLevels = this.placeholder.closest('.ui-sortable').nestedSortable('option', 'maxLevels'); // this takes into account the maxLevels set to the recipient list
402
403	// Is the root protected?
404	// Are we trying to nest under a no-nest?
405	// Are we nesting too deep?
406	if (!o.isAllowed(this.currentItem, parentItem) \|\|
407	parentItem && parentItem.hasClass(o.disableNesting) \|\|
408	o.protectRoot && (parentItem == null && !isRoot \|\| isRoot && level > 1)) {
409	this.placeholder.addClass(o.errorClass);
410	if (maxLevels < levels && maxLevels != 0) {
411	this.beyondMaxLevels = levels - maxLevels;
412	} else {
413	this.beyondMaxLevels = 1;
414	}
415	} else {
416	if (maxLevels < levels && maxLevels != 0) {
417	this.placeholder.addClass(o.errorClass);
418	this.beyondMaxLevels = levels - maxLevels;
419	} else {
420	this.placeholder.removeClass(o.errorClass);
421	this.beyondMaxLevels = 0;
422	}
423	}
424	}
425
426	}));
427
428	$.mjs.nestedSortable.prototype.options = $.extend({}, $.ui.sortable.prototype.options, $.mjs.nestedSortable.prototype.options);
429	})(jQuery);

Note: See TracBrowser for help on using the repository browser.

Download in other formats:

Sites map

Dotclear
- Home
- Download
- Extend
- License
About
Help & support
Contribute
Satellite sites
- Themes on Dotaddict.org
- Plugins on Dotaddict.org