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authorpatdenice <patdenice@piwigo.org>2008-09-20 01:04:01 +0000
committerpatdenice <patdenice@piwigo.org>2008-09-20 01:04:01 +0000
commitc9cb39aadcaaf118b74d9c33d53373dc4cf9f4a4 (patch)
tree9981538da594fafe4f46f0ca15e9f041f3c3ab09 /template-common/lib/ui/ui.sortable.js
parentd55107e3e3511e4b2c52b56aaa1d6f7c6fd46b27 (diff)
- Add drag&drop to cat_list.
git-svn-id: http://piwigo.org/svn/trunk@2554 68402e56-0260-453c-a942-63ccdbb3a9ee
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-rw-r--r--template-common/lib/ui/ui.sortable.js743
1 files changed, 743 insertions, 0 deletions
diff --git a/template-common/lib/ui/ui.sortable.js b/template-common/lib/ui/ui.sortable.js
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+++ b/template-common/lib/ui/ui.sortable.js
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+/*
+ * jQuery UI Sortable
+ *
+ * Copyright (c) 2008 Paul Bakaus
+ * Dual licensed under the MIT (MIT-LICENSE.txt)
+ * and GPL (GPL-LICENSE.txt) licenses.
+ *
+ * http://docs.jquery.com/UI/Sortables
+ *
+ * Depends:
+ * ui.core.js
+ */
+(function($) {
+
+function contains(a, b) {
+ var safari2 = $.browser.safari && $.browser.version < 522;
+ if (a.contains && !safari2) {
+ return a.contains(b);
+ }
+ if (a.compareDocumentPosition)
+ return !!(a.compareDocumentPosition(b) & 16);
+ while (b = b.parentNode)
+ if (b == a) return true;
+ return false;
+};
+
+$.widget("ui.sortable", $.extend({}, $.ui.mouse, {
+ init: function() {
+
+ var o = this.options;
+ this.containerCache = {};
+ this.element.addClass("ui-sortable");
+
+ //Get the items
+ this.refresh();
+
+ //Let's determine if the items are floating
+ this.floating = this.items.length ? (/left|right/).test(this.items[0].item.css('float')) : false;
+
+ //Let's determine the parent's offset
+ if(!(/(relative|absolute|fixed)/).test(this.element.css('position'))) this.element.css('position', 'relative');
+ this.offset = this.element.offset();
+
+ //Initialize mouse events for interaction
+ this.mouseInit();
+
+ },
+ plugins: {},
+ ui: function(inst) {
+ return {
+ helper: (inst || this)["helper"],
+ placeholder: (inst || this)["placeholder"] || $([]),
+ position: (inst || this)["position"],
+ absolutePosition: (inst || this)["positionAbs"],
+ options: this.options,
+ element: this.element,
+ item: (inst || this)["currentItem"],
+ sender: inst ? inst.element : null
+ };
+ },
+ propagate: function(n,e,inst, noPropagation) {
+ $.ui.plugin.call(this, n, [e, this.ui(inst)]);
+ if(!noPropagation) this.element.triggerHandler(n == "sort" ? n : "sort"+n, [e, this.ui(inst)], this.options[n]);
+ },
+ serialize: function(o) {
+
+ var items = ($.isFunction(this.options.items) ? this.options.items.call(this.element) : $(this.options.items, this.element)).not('.ui-sortable-helper'); //Only the items of the sortable itself
+ var str = []; o = o || {};
+
+ items.each(function() {
+ var res = ($(this).attr(o.attribute || 'id') || '').match(o.expression || (/(.+)[-=_](.+)/));
+ if(res) str.push((o.key || res[1])+'[]='+(o.key && o.expression ? res[1] : res[2]));
+ });
+
+ return str.join('&');
+
+ },
+ toArray: function(attr) {
+
+ var items = ($.isFunction(this.options.items) ? this.options.items.call(this.element) : $(this.options.items, this.element)).not('.ui-sortable-helper'); //Only the items of the sortable itself
+ var ret = [];
+
+ items.each(function() { ret.push($(this).attr(attr || 'id')); });
+ return ret;
+
+ },
+ /* Be careful with the following core functions */
+ intersectsWith: function(item) {
+
+ var x1 = this.positionAbs.left, x2 = x1 + this.helperProportions.width,
+ y1 = this.positionAbs.top, y2 = y1 + this.helperProportions.height;
+ var l = item.left, r = l + item.width,
+ t = item.top, b = t + item.height;
+
+ if(this.options.tolerance == "pointer" || this.options.forcePointerForContainers || (this.options.tolerance == "guess" && this.helperProportions[this.floating ? 'width' : 'height'] > item[this.floating ? 'width' : 'height'])) {
+ return (y1 + this.offset.click.top > t && y1 + this.offset.click.top < b && x1 + this.offset.click.left > l && x1 + this.offset.click.left < r);
+ } else {
+
+ return (l < x1 + (this.helperProportions.width / 2) // Right Half
+ && x2 - (this.helperProportions.width / 2) < r // Left Half
+ && t < y1 + (this.helperProportions.height / 2) // Bottom Half
+ && y2 - (this.helperProportions.height / 2) < b ); // Top Half
+
+ }
+
+ },
+ intersectsWithEdge: function(item) {
+ var x1 = this.positionAbs.left, x2 = x1 + this.helperProportions.width,
+ y1 = this.positionAbs.top, y2 = y1 + this.helperProportions.height;
+ var l = item.left, r = l + item.width,
+ t = item.top, b = t + item.height;
+
+ if(this.options.tolerance == "pointer" || (this.options.tolerance == "guess" && this.helperProportions[this.floating ? 'width' : 'height'] > item[this.floating ? 'width' : 'height'])) {
+
+ if(!(y1 + this.offset.click.top > t && y1 + this.offset.click.top < b && x1 + this.offset.click.left > l && x1 + this.offset.click.left < r)) return false;
+
+ if(this.floating) {
+ if(x1 + this.offset.click.left > l && x1 + this.offset.click.left < l + item.width/2) return 2;
+ if(x1 + this.offset.click.left > l+item.width/2 && x1 + this.offset.click.left < r) return 1;
+ } else {
+ if(y1 + this.offset.click.top > t && y1 + this.offset.click.top < t + item.height/2) return 2;
+ if(y1 + this.offset.click.top > t+item.height/2 && y1 + this.offset.click.top < b) return 1;
+ }
+
+ } else {
+
+ if (!(l < x1 + (this.helperProportions.width / 2) // Right Half
+ && x2 - (this.helperProportions.width / 2) < r // Left Half
+ && t < y1 + (this.helperProportions.height / 2) // Bottom Half
+ && y2 - (this.helperProportions.height / 2) < b )) return false; // Top Half
+
+ if(this.floating) {
+ if(x2 > l && x1 < l) return 2; //Crosses left edge
+ if(x1 < r && x2 > r) return 1; //Crosses right edge
+ } else {
+ if(y2 > t && y1 < t) return 1; //Crosses top edge
+ if(y1 < b && y2 > b) return 2; //Crosses bottom edge
+ }
+
+ }
+
+ return false;
+
+ },
+ refresh: function() {
+ this.refreshItems();
+ this.refreshPositions();
+ },
+ refreshItems: function() {
+
+ this.items = [];
+ this.containers = [this];
+ var items = this.items;
+ var self = this;
+ var queries = [[$.isFunction(this.options.items) ? this.options.items.call(this.element, null, { options: this.options, item: this.currentItem }) : $(this.options.items, this.element), this]];
+
+ if(this.options.connectWith) {
+ for (var i = this.options.connectWith.length - 1; i >= 0; i--){
+ var cur = $(this.options.connectWith[i]);
+ for (var j = cur.length - 1; j >= 0; j--){
+ var inst = $.data(cur[j], 'sortable');
+ if(inst && !inst.options.disabled) {
+ queries.push([$.isFunction(inst.options.items) ? inst.options.items.call(inst.element) : $(inst.options.items, inst.element), inst]);
+ this.containers.push(inst);
+ }
+ };
+ };
+ }
+
+ for (var i = queries.length - 1; i >= 0; i--){
+ queries[i][0].each(function() {
+ $.data(this, 'sortable-item', queries[i][1]); // Data for target checking (mouse manager)
+ items.push({
+ item: $(this),
+ instance: queries[i][1],
+ width: 0, height: 0,
+ left: 0, top: 0
+ });
+ });
+ };
+
+ },
+ refreshPositions: function(fast) {
+
+ //This has to be redone because due to the item being moved out/into the offsetParent, the offsetParent's position will change
+ if(this.offsetParent) {
+ var po = this.offsetParent.offset();
+ this.offset.parent = { top: po.top + this.offsetParentBorders.top, left: po.left + this.offsetParentBorders.left };
+ }
+
+ for (var i = this.items.length - 1; i >= 0; i--){
+
+ //We ignore calculating positions of all connected containers when we're not over them
+ if(this.items[i].instance != this.currentContainer && this.currentContainer && this.items[i].item[0] != this.currentItem[0])
+ continue;
+
+ var t = this.options.toleranceElement ? $(this.options.toleranceElement, this.items[i].item) : this.items[i].item;
+
+ if(!fast) {
+ this.items[i].width = t[0].offsetWidth;
+ this.items[i].height = t[0].offsetHeight;
+ }
+
+ var p = t.offset();
+ this.items[i].left = p.left;
+ this.items[i].top = p.top;
+
+ };
+
+ if(this.options.custom && this.options.custom.refreshContainers) {
+ this.options.custom.refreshContainers.call(this);
+ } else {
+ for (var i = this.containers.length - 1; i >= 0; i--){
+ var p =this.containers[i].element.offset();
+ this.containers[i].containerCache.left = p.left;
+ this.containers[i].containerCache.top = p.top;
+ this.containers[i].containerCache.width = this.containers[i].element.outerWidth();
+ this.containers[i].containerCache.height = this.containers[i].element.outerHeight();
+ };
+ }
+
+ },
+ destroy: function() {
+ this.element
+ .removeClass("ui-sortable ui-sortable-disabled")
+ .removeData("sortable")
+ .unbind(".sortable");
+ this.mouseDestroy();
+
+ for ( var i = this.items.length - 1; i >= 0; i-- )
+ this.items[i].item.removeData("sortable-item");
+ },
+ createPlaceholder: function(that) {
+
+ var self = that || this, o = self.options;
+
+ if(o.placeholder.constructor == String) {
+ var className = o.placeholder;
+ o.placeholder = {
+ element: function() {
+ return $('<div></div>').addClass(className)[0];
+ },
+ update: function(i, p) {
+ p.css(i.offset()).css({ width: i.outerWidth(), height: i.outerHeight() });
+ }
+ };
+ }
+
+ self.placeholder = $(o.placeholder.element.call(self.element, self.currentItem)).appendTo('body').css({ position: 'absolute' });
+ o.placeholder.update.call(self.element, self.currentItem, self.placeholder);
+ },
+ contactContainers: function(e) {
+ for (var i = this.containers.length - 1; i >= 0; i--){
+
+ if(this.intersectsWith(this.containers[i].containerCache)) {
+ if(!this.containers[i].containerCache.over) {
+
+
+ if(this.currentContainer != this.containers[i]) {
+
+ //When entering a new container, we will find the item with the least distance and append our item near it
+ var dist = 10000; var itemWithLeastDistance = null; var base = this.positionAbs[this.containers[i].floating ? 'left' : 'top'];
+ for (var j = this.items.length - 1; j >= 0; j--) {
+ if(!contains(this.containers[i].element[0], this.items[j].item[0])) continue;
+ var cur = this.items[j][this.containers[i].floating ? 'left' : 'top'];
+ if(Math.abs(cur - base) < dist) {
+ dist = Math.abs(cur - base); itemWithLeastDistance = this.items[j];
+ }
+ }
+
+ if(!itemWithLeastDistance && !this.options.dropOnEmpty) //Check if dropOnEmpty is enabled
+ continue;
+
+ //We also need to exchange the placeholder
+ if(this.placeholder) this.placeholder.remove();
+ if(this.containers[i].options.placeholder) {
+ this.containers[i].createPlaceholder(this);
+ } else {
+ this.placeholder = null;;
+ }
+
+ this.currentContainer = this.containers[i];
+ itemWithLeastDistance ? this.rearrange(e, itemWithLeastDistance, null, true) : this.rearrange(e, null, this.containers[i].element, true);
+ this.propagate("change", e); //Call plugins and callbacks
+ this.containers[i].propagate("change", e, this); //Call plugins and callbacks
+
+ }
+
+ this.containers[i].propagate("over", e, this);
+ this.containers[i].containerCache.over = 1;
+ }
+ } else {
+ if(this.containers[i].containerCache.over) {
+ this.containers[i].propagate("out", e, this);
+ this.containers[i].containerCache.over = 0;
+ }
+ }
+
+ };
+ },
+ mouseCapture: function(e, overrideHandle) {
+
+ if(this.options.disabled || this.options.type == 'static') return false;
+
+ //We have to refresh the items data once first
+ this.refreshItems();
+
+ //Find out if the clicked node (or one of its parents) is a actual item in this.items
+ var currentItem = null, self = this, nodes = $(e.target).parents().each(function() {
+ if($.data(this, 'sortable-item') == self) {
+ currentItem = $(this);
+ return false;
+ }
+ });
+ if($.data(e.target, 'sortable-item') == self) currentItem = $(e.target);
+
+ if(!currentItem) return false;
+ if(this.options.handle && !overrideHandle) {
+ var validHandle = false;
+
+ $(this.options.handle, currentItem).find("*").andSelf().each(function() { if(this == e.target) validHandle = true; });
+ if(!validHandle) return false;
+ }
+
+ this.currentItem = currentItem;
+ return true;
+
+ },
+ mouseStart: function(e, overrideHandle, noActivation) {
+
+ var o = this.options;
+ this.currentContainer = this;
+
+ //We only need to call refreshPositions, because the refreshItems call has been moved to mouseCapture
+ this.refreshPositions();
+
+ //Create and append the visible helper
+ this.helper = typeof o.helper == 'function' ? $(o.helper.apply(this.element[0], [e, this.currentItem])) : this.currentItem.clone();
+ if (!this.helper.parents('body').length) $(o.appendTo != 'parent' ? o.appendTo : this.currentItem[0].parentNode)[0].appendChild(this.helper[0]); //Add the helper to the DOM if that didn't happen already
+ this.helper.css({ position: 'absolute', clear: 'both' }).addClass('ui-sortable-helper'); //Position it absolutely and add a helper class
+
+ /*
+ * - Position generation -
+ * This block generates everything position related - it's the core of draggables.
+ */
+
+ this.margins = { //Cache the margins
+ left: (parseInt(this.currentItem.css("marginLeft"),10) || 0),
+ top: (parseInt(this.currentItem.css("marginTop"),10) || 0)
+ };
+
+ this.offset = this.currentItem.offset(); //The element's absolute position on the page
+ this.offset = { //Substract the margins from the element's absolute offset
+ top: this.offset.top - this.margins.top,
+ left: this.offset.left - this.margins.left
+ };
+
+ this.offset.click = { //Where the click happened, relative to the element
+ left: e.pageX - this.offset.left,
+ top: e.pageY - this.offset.top
+ };
+
+ this.offsetParent = this.helper.offsetParent(); //Get the offsetParent and cache its position
+ var po = this.offsetParent.offset();
+
+ this.offsetParentBorders = {
+ top: (parseInt(this.offsetParent.css("borderTopWidth"),10) || 0),
+ left: (parseInt(this.offsetParent.css("borderLeftWidth"),10) || 0)
+ };
+ this.offset.parent = { //Store its position plus border
+ top: po.top + this.offsetParentBorders.top,
+ left: po.left + this.offsetParentBorders.left
+ };
+
+ this.originalPosition = this.generatePosition(e); //Generate the original position
+ this.domPosition = { prev: this.currentItem.prev()[0], parent: this.currentItem.parent()[0] }; //Cache the former DOM position
+
+ //If o.placeholder is used, create a new element at the given position with the class
+ this.helperProportions = { width: this.helper.outerWidth(), height: this.helper.outerHeight() };//Cache the helper size
+ if(o.placeholder) this.createPlaceholder();
+
+ //Call plugins and callbacks
+ this.propagate("start", e);
+ this.helperProportions = { width: this.helper.outerWidth(), height: this.helper.outerHeight() };//Recache the helper size
+
+ if(o.cursorAt) {
+ if(o.cursorAt.left != undefined) this.offset.click.left = o.cursorAt.left;
+ if(o.cursorAt.right != undefined) this.offset.click.left = this.helperProportions.width - o.cursorAt.right;
+ if(o.cursorAt.top != undefined) this.offset.click.top = o.cursorAt.top;
+ if(o.cursorAt.bottom != undefined) this.offset.click.top = this.helperProportions.height - o.cursorAt.bottom;
+ }
+
+ /*
+ * - Position constraining -
+ * Here we prepare position constraining like grid and containment.
+ */
+
+ if(o.containment) {
+ if(o.containment == 'parent') o.containment = this.helper[0].parentNode;
+ if(o.containment == 'document' || o.containment == 'window') this.containment = [
+ 0 - this.offset.parent.left,
+ 0 - this.offset.parent.top,
+ $(o.containment == 'document' ? document : window).width() - this.offset.parent.left - this.helperProportions.width - this.margins.left - (parseInt(this.element.css("marginRight"),10) || 0),
+ ($(o.containment == 'document' ? document : window).height() || document.body.parentNode.scrollHeight) - this.offset.parent.top - this.helperProportions.height - this.margins.top - (parseInt(this.element.css("marginBottom"),10) || 0)
+ ];
+
+ if(!(/^(document|window|parent)$/).test(o.containment)) {
+ var ce = $(o.containment)[0];
+ var co = $(o.containment).offset();
+
+ this.containment = [
+ co.left + (parseInt($(ce).css("borderLeftWidth"),10) || 0) - this.offset.parent.left,
+ co.top + (parseInt($(ce).css("borderTopWidth"),10) || 0) - this.offset.parent.top,
+ co.left+Math.max(ce.scrollWidth,ce.offsetWidth) - (parseInt($(ce).css("borderLeftWidth"),10) || 0) - this.offset.parent.left - this.helperProportions.width - this.margins.left - (parseInt(this.currentItem.css("marginRight"),10) || 0),
+ co.top+Math.max(ce.scrollHeight,ce.offsetHeight) - (parseInt($(ce).css("borderTopWidth"),10) || 0) - this.offset.parent.top - this.helperProportions.height - this.margins.top - (parseInt(this.currentItem.css("marginBottom"),10) || 0)
+ ];
+ }
+ }
+
+ //Set the original element visibility to hidden to still fill out the white space
+ if(this.options.placeholder != 'clone')
+ this.currentItem.css('visibility', 'hidden');
+
+ //Post 'activate' events to possible containers
+ if(!noActivation) {
+ for (var i = this.containers.length - 1; i >= 0; i--) { this.containers[i].propagate("activate", e, this); }
+ }
+
+ //Prepare possible droppables
+ if($.ui.ddmanager) $.ui.ddmanager.current = this;
+ if ($.ui.ddmanager && !o.dropBehaviour) $.ui.ddmanager.prepareOffsets(this, e);
+
+ this.dragging = true;
+
+ this.mouseDrag(e); //Execute the drag once - this causes the helper not to be visible before getting its correct position
+ return true;
+
+
+ },
+ convertPositionTo: function(d, pos) {
+ if(!pos) pos = this.position;
+ var mod = d == "absolute" ? 1 : -1;
+ return {
+ top: (
+ pos.top // the calculated relative position
+ + this.offset.parent.top * mod // The offsetParent's offset without borders (offset + border)
+ - (this.offsetParent[0] == document.body ? 0 : this.offsetParent[0].scrollTop) * mod // The offsetParent's scroll position
+ + this.margins.top * mod //Add the margin (you don't want the margin counting in intersection methods)
+ ),
+ left: (
+ pos.left // the calculated relative position
+ + this.offset.parent.left * mod // The offsetParent's offset without borders (offset + border)
+ - (this.offsetParent[0] == document.body ? 0 : this.offsetParent[0].scrollLeft) * mod // The offsetParent's scroll position
+ + this.margins.left * mod //Add the margin (you don't want the margin counting in intersection methods)
+ )
+ };
+ },
+ generatePosition: function(e) {
+
+ var o = this.options;
+ var position = {
+ top: (
+ e.pageY // The absolute mouse position
+ - this.offset.click.top // Click offset (relative to the element)
+ - this.offset.parent.top // The offsetParent's offset without borders (offset + border)
+ + (this.offsetParent[0] == document.body ? 0 : this.offsetParent[0].scrollTop) // The offsetParent's scroll position, not if the element is fixed
+ ),
+ left: (
+ e.pageX // The absolute mouse position
+ - this.offset.click.left // Click offset (relative to the element)
+ - this.offset.parent.left // The offsetParent's offset without borders (offset + border)
+ + (this.offsetParent[0] == document.body ? 0 : this.offsetParent[0].scrollLeft) // The offsetParent's scroll position, not if the element is fixed
+ )
+ };
+
+ if(!this.originalPosition) return position; //If we are not dragging yet, we won't check for options
+
+ /*
+ * - Position constraining -
+ * Constrain the position to a mix of grid, containment.
+ */
+ if(this.containment) {
+ if(position.left < this.containment[0]) position.left = this.containment[0];
+ if(position.top < this.containment[1]) position.top = this.containment[1];
+ if(position.left > this.containment[2]) position.left = this.containment[2];
+ if(position.top > this.containment[3]) position.top = this.containment[3];
+ }
+
+ if(o.grid) {
+ var top = this.originalPosition.top + Math.round((position.top - this.originalPosition.top) / o.grid[1]) * o.grid[1];
+ position.top = this.containment ? (!(top < this.containment[1] || top > this.containment[3]) ? top : (!(top < this.containment[1]) ? top - o.grid[1] : top + o.grid[1])) : top;
+
+ var left = this.originalPosition.left + Math.round((position.left - this.originalPosition.left) / o.grid[0]) * o.grid[0];
+ position.left = this.containment ? (!(left < this.containment[0] || left > this.containment[2]) ? left : (!(left < this.containment[0]) ? left - o.grid[0] : left + o.grid[0])) : left;
+ }
+
+ return position;
+ },
+ mouseDrag: function(e) {
+
+ //Compute the helpers position
+ this.position = this.generatePosition(e);
+ this.positionAbs = this.convertPositionTo("absolute");
+
+ //Call the internal plugins
+ $.ui.plugin.call(this, "sort", [e, this.ui()]);
+
+ //Regenerate the absolute position used for position checks
+ this.positionAbs = this.convertPositionTo("absolute");
+
+ //Set the helper's position
+ this.helper[0].style.left = this.position.left+'px';
+ this.helper[0].style.top = this.position.top+'px';
+
+ //Rearrange
+ for (var i = this.items.length - 1; i >= 0; i--) {
+ var intersection = this.intersectsWithEdge(this.items[i]);
+ if(!intersection) continue;
+
+ if(this.items[i].item[0] != this.currentItem[0] //cannot intersect with itself
+ && this.currentItem[intersection == 1 ? "next" : "prev"]()[0] != this.items[i].item[0] //no useless actions that have been done before
+ && !contains(this.currentItem[0], this.items[i].item[0]) //no action if the item moved is the parent of the item checked
+ && (this.options.type == 'semi-dynamic' ? !contains(this.element[0], this.items[i].item[0]) : true)
+ ) {
+
+ this.direction = intersection == 1 ? "down" : "up";
+ this.rearrange(e, this.items[i]);
+ this.propagate("change", e); //Call plugins and callbacks
+ break;
+ }
+ }
+
+ //Post events to containers
+ this.contactContainers(e);
+
+ //Interconnect with droppables
+ if($.ui.ddmanager) $.ui.ddmanager.drag(this, e);
+
+ //Call callbacks
+ this.element.triggerHandler("sort", [e, this.ui()], this.options["sort"]);
+
+ return false;
+
+ },
+ rearrange: function(e, i, a, hardRefresh) {
+ a ? a[0].appendChild(this.currentItem[0]) : i.item[0].parentNode.insertBefore(this.currentItem[0], (this.direction == 'down' ? i.item[0] : i.item[0].nextSibling));
+
+ //Various things done here to improve the performance:
+ // 1. we create a setTimeout, that calls refreshPositions
+ // 2. on the instance, we have a counter variable, that get's higher after every append
+ // 3. on the local scope, we copy the counter variable, and check in the timeout, if it's still the same
+ // 4. this lets only the last addition to the timeout stack through
+ this.counter = this.counter ? ++this.counter : 1;
+ var self = this, counter = this.counter;
+
+ window.setTimeout(function() {
+ if(counter == self.counter) self.refreshPositions(!hardRefresh); //Precompute after each DOM insertion, NOT on mousemove
+ },0);
+
+ if(this.options.placeholder)
+ this.options.placeholder.update.call(this.element, this.currentItem, this.placeholder);
+ },
+ mouseStop: function(e, noPropagation) {
+
+ //If we are using droppables, inform the manager about the drop
+ if ($.ui.ddmanager && !this.options.dropBehaviour)
+ $.ui.ddmanager.drop(this, e);
+
+ if(this.options.revert) {
+ var self = this;
+ var cur = self.currentItem.offset();
+
+ //Also animate the placeholder if we have one
+ if(self.placeholder) self.placeholder.animate({ opacity: 'hide' }, (parseInt(this.options.revert, 10) || 500)-50);
+
+ $(this.helper).animate({
+ left: cur.left - this.offset.parent.left - self.margins.left + (this.offsetParent[0] == document.body ? 0 : this.offsetParent[0].scrollLeft),
+ top: cur.top - this.offset.parent.top - self.margins.top + (this.offsetParent[0] == document.body ? 0 : this.offsetParent[0].scrollTop)
+ }, parseInt(this.options.revert, 10) || 500, function() {
+ self.clear(e);
+ });
+ } else {
+ this.clear(e, noPropagation);
+ }
+
+ return false;
+
+ },
+ clear: function(e, noPropagation) {
+
+ if(this.domPosition.prev != this.currentItem.prev().not(".ui-sortable-helper")[0] || this.domPosition.parent != this.currentItem.parent()[0]) this.propagate("update", e, null, noPropagation); //Trigger update callback if the DOM position has changed
+ if(!contains(this.element[0], this.currentItem[0])) { //Node was moved out of the current element
+ this.propagate("remove", e, null, noPropagation);
+ for (var i = this.containers.length - 1; i >= 0; i--){
+ if(contains(this.containers[i].element[0], this.currentItem[0])) {
+ this.containers[i].propagate("update", e, this, noPropagation);
+ this.containers[i].propagate("receive", e, this, noPropagation);
+ }
+ };
+ };
+
+ //Post events to containers
+ for (var i = this.containers.length - 1; i >= 0; i--){
+ this.containers[i].propagate("deactivate", e, this, noPropagation);
+ if(this.containers[i].containerCache.over) {
+ this.containers[i].propagate("out", e, this);
+ this.containers[i].containerCache.over = 0;
+ }
+ }
+
+ this.dragging = false;
+ if(this.cancelHelperRemoval) {
+ this.propagate("stop", e, null, noPropagation);
+ return false;
+ }
+
+ $(this.currentItem).css('visibility', '');
+ if(this.placeholder) this.placeholder.remove();
+ this.helper.remove(); this.helper = null;
+ this.propagate("stop", e, null, noPropagation);
+
+ return true;
+
+ }
+}));
+
+$.extend($.ui.sortable, {
+ getter: "serialize toArray",
+ defaults: {
+ helper: "clone",
+ tolerance: "guess",
+ distance: 1,
+ delay: 0,
+ scroll: true,
+ scrollSensitivity: 20,
+ scrollSpeed: 20,
+ cancel: ":input",
+ items: '> *',
+ zIndex: 1000,
+ dropOnEmpty: true,
+ appendTo: "parent"
+ }
+});
+
+/*
+ * Sortable Extensions
+ */
+
+$.ui.plugin.add("sortable", "cursor", {
+ start: function(e, ui) {
+ var t = $('body');
+ if (t.css("cursor")) ui.options._cursor = t.css("cursor");
+ t.css("cursor", ui.options.cursor);
+ },
+ stop: function(e, ui) {
+ if (ui.options._cursor) $('body').css("cursor", ui.options._cursor);
+ }
+});
+
+$.ui.plugin.add("sortable", "zIndex", {
+ start: function(e, ui) {
+ var t = ui.helper;
+ if(t.css("zIndex")) ui.options._zIndex = t.css("zIndex");
+ t.css('zIndex', ui.options.zIndex);
+ },
+ stop: function(e, ui) {
+ if(ui.options._zIndex) $(ui.helper).css('zIndex', ui.options._zIndex);
+ }
+});
+
+$.ui.plugin.add("sortable", "opacity", {
+ start: function(e, ui) {
+ var t = ui.helper;
+ if(t.css("opacity")) ui.options._opacity = t.css("opacity");
+ t.css('opacity', ui.options.opacity);
+ },
+ stop: function(e, ui) {
+ if(ui.options._opacity) $(ui.helper).css('opacity', ui.options._opacity);
+ }
+});
+
+$.ui.plugin.add("sortable", "scroll", {
+ start: function(e, ui) {
+ var o = ui.options;
+ var i = $(this).data("sortable");
+
+ i.overflowY = function(el) {
+ do { if(/auto|scroll/.test(el.css('overflow')) || (/auto|scroll/).test(el.css('overflow-y'))) return el; el = el.parent(); } while (el[0].parentNode);
+ return $(document);
+ }(i.currentItem);
+ i.overflowX = function(el) {
+ do { if(/auto|scroll/.test(el.css('overflow')) || (/auto|scroll/).test(el.css('overflow-x'))) return el; el = el.parent(); } while (el[0].parentNode);
+ return $(document);
+ }(i.currentItem);
+
+ if(i.overflowY[0] != document && i.overflowY[0].tagName != 'HTML') i.overflowYOffset = i.overflowY.offset();
+ if(i.overflowX[0] != document && i.overflowX[0].tagName != 'HTML') i.overflowXOffset = i.overflowX.offset();
+
+ },
+ sort: function(e, ui) {
+
+ var o = ui.options;
+ var i = $(this).data("sortable");
+
+ if(i.overflowY[0] != document && i.overflowY[0].tagName != 'HTML') {
+ if((i.overflowYOffset.top + i.overflowY[0].offsetHeight) - e.pageY < o.scrollSensitivity)
+ i.overflowY[0].scrollTop = i.overflowY[0].scrollTop + o.scrollSpeed;
+ if(e.pageY - i.overflowYOffset.top < o.scrollSensitivity)
+ i.overflowY[0].scrollTop = i.overflowY[0].scrollTop - o.scrollSpeed;
+ } else {
+ if(e.pageY - $(document).scrollTop() < o.scrollSensitivity)
+ $(document).scrollTop($(document).scrollTop() - o.scrollSpeed);
+ if($(window).height() - (e.pageY - $(document).scrollTop()) < o.scrollSensitivity)
+ $(document).scrollTop($(document).scrollTop() + o.scrollSpeed);
+ }
+
+ if(i.overflowX[0] != document && i.overflowX[0].tagName != 'HTML') {
+ if((i.overflowXOffset.left + i.overflowX[0].offsetWidth) - e.pageX < o.scrollSensitivity)
+ i.overflowX[0].scrollLeft = i.overflowX[0].scrollLeft + o.scrollSpeed;
+ if(e.pageX - i.overflowXOffset.left < o.scrollSensitivity)
+ i.overflowX[0].scrollLeft = i.overflowX[0].scrollLeft - o.scrollSpeed;
+ } else {
+ if(e.pageX - $(document).scrollLeft() < o.scrollSensitivity)
+ $(document).scrollLeft($(document).scrollLeft() - o.scrollSpeed);
+ if($(window).width() - (e.pageX - $(document).scrollLeft()) < o.scrollSensitivity)
+ $(document).scrollLeft($(document).scrollLeft() + o.scrollSpeed);
+ }
+
+ }
+});
+
+$.ui.plugin.add("sortable", "axis", {
+ sort: function(e, ui) {
+
+ var i = $(this).data("sortable");
+
+ if(ui.options.axis == "y") i.position.left = i.originalPosition.left;
+ if(ui.options.axis == "x") i.position.top = i.originalPosition.top;
+
+ }
+});
+
+})(jQuery);