Blame | Last modification | View Log | RSS feed
/** jQuery UI Draggable 1.8.5** Copyright 2010, AUTHORS.txt (http://jqueryui.com/about)* Dual licensed under the MIT or GPL Version 2 licenses.* http://jquery.org/license** http://docs.jquery.com/UI/Draggables** Depends:* jquery.ui.core.js* jquery.ui.mouse.js* jquery.ui.widget.js*/(function( $, undefined ) {$.widget("ui.draggable", $.ui.mouse, {widgetEventPrefix: "drag",options: {addClasses: true,appendTo: "parent",axis: false,connectToSortable: false,containment: false,cursor: "auto",cursorAt: false,grid: false,handle: false,helper: "original",iframeFix: false,opacity: false,refreshPositions: false,revert: false,revertDuration: 500,scope: "default",scroll: true,scrollSensitivity: 20,scrollSpeed: 20,snap: false,snapMode: "both",snapTolerance: 20,stack: false,zIndex: false},_create: function() {if (this.options.helper == 'original' && !(/^(?:r|a|f)/).test(this.element.css("position")))this.element[0].style.position = 'relative';(this.options.addClasses && this.element.addClass("ui-draggable"));(this.options.disabled && this.element.addClass("ui-draggable-disabled"));this._mouseInit();},destroy: function() {if(!this.element.data('draggable')) return;this.element.removeData("draggable").unbind(".draggable").removeClass("ui-draggable"+ " ui-draggable-dragging"+ " ui-draggable-disabled");this._mouseDestroy();return this;},_mouseCapture: function(event) {var o = this.options;// among others, prevent a drag on a resizable-handleif (this.helper || o.disabled || $(event.target).is('.ui-resizable-handle'))return false;//Quit if we're not on a valid handlethis.handle = this._getHandle(event);if (!this.handle)return false;return true;},_mouseStart: function(event) {var o = this.options;//Create and append the visible helperthis.helper = this._createHelper(event);//Cache the helper sizethis._cacheHelperProportions();//If ddmanager is used for droppables, set the global draggableif($.ui.ddmanager)$.ui.ddmanager.current = this;/** - Position generation -* This block generates everything position related - it's the core of draggables.*///Cache the margins of the original elementthis._cacheMargins();//Store the helper's css positionthis.cssPosition = this.helper.css("position");this.scrollParent = this.helper.scrollParent();//The element's absolute position on the page minus marginsthis.offset = this.positionAbs = this.element.offset();this.offset = {top: this.offset.top - this.margins.top,left: this.offset.left - this.margins.left};$.extend(this.offset, {click: { //Where the click happened, relative to the elementleft: event.pageX - this.offset.left,top: event.pageY - this.offset.top},parent: this._getParentOffset(),relative: this._getRelativeOffset() //This is a relative to absolute position minus the actual position calculation - only used for relative positioned helper});//Generate the original positionthis.originalPosition = this.position = this._generatePosition(event);this.originalPageX = event.pageX;this.originalPageY = event.pageY;//Adjust the mouse offset relative to the helper if 'cursorAt' is supplied(o.cursorAt && this._adjustOffsetFromHelper(o.cursorAt));//Set a containment if given in the optionsif(o.containment)this._setContainment();//Trigger event + callbacksif(this._trigger("start", event) === false) {this._clear();return false;}//Recache the helper sizethis._cacheHelperProportions();//Prepare the droppable offsetsif ($.ui.ddmanager && !o.dropBehaviour)$.ui.ddmanager.prepareOffsets(this, event);this.helper.addClass("ui-draggable-dragging");this._mouseDrag(event, true); //Execute the drag once - this causes the helper not to be visible before getting its correct positionreturn true;},_mouseDrag: function(event, noPropagation) {//Compute the helpers positionthis.position = this._generatePosition(event);this.positionAbs = this._convertPositionTo("absolute");//Call plugins and callbacks and use the resulting position if something is returnedif (!noPropagation) {var ui = this._uiHash();if(this._trigger('drag', event, ui) === false) {this._mouseUp({});return false;}this.position = ui.position;}if(!this.options.axis || this.options.axis != "y") this.helper[0].style.left = this.position.left+'px';if(!this.options.axis || this.options.axis != "x") this.helper[0].style.top = this.position.top+'px';if($.ui.ddmanager) $.ui.ddmanager.drag(this, event);return false;},_mouseStop: function(event) {//If we are using droppables, inform the manager about the dropvar dropped = false;if ($.ui.ddmanager && !this.options.dropBehaviour)dropped = $.ui.ddmanager.drop(this, event);//if a drop comes from outside (a sortable)if(this.dropped) {dropped = this.dropped;this.dropped = false;}//if the original element is removed, don't bother to continueif(!this.element[0] || !this.element[0].parentNode)return false;if((this.options.revert == "invalid" && !dropped) || (this.options.revert == "valid" && dropped) || this.options.revert === true || ($.isFunction(this.options.revert) && this.options.revert.call(this.element, dropped))) {var self = this;$(this.helper).animate(this.originalPosition, parseInt(this.options.revertDuration, 10), function() {if(self._trigger("stop", event) !== false) {self._clear();}});} else {if(this._trigger("stop", event) !== false) {this._clear();}}return false;},cancel: function() {if(this.helper.is(".ui-draggable-dragging")) {this._mouseUp({});} else {this._clear();}return this;},_getHandle: function(event) {var handle = !this.options.handle || !$(this.options.handle, this.element).length ? true : false;$(this.options.handle, this.element).find("*").andSelf().each(function() {if(this == event.target) handle = true;});return handle;},_createHelper: function(event) {var o = this.options;var helper = $.isFunction(o.helper) ? $(o.helper.apply(this.element[0], [event])) : (o.helper == 'clone' ? this.element.clone() : this.element);if(!helper.parents('body').length)helper.appendTo((o.appendTo == 'parent' ? this.element[0].parentNode : o.appendTo));if(helper[0] != this.element[0] && !(/(fixed|absolute)/).test(helper.css("position")))helper.css("position", "absolute");return helper;},_adjustOffsetFromHelper: function(obj) {if (typeof obj == 'string') {obj = obj.split(' ');}if ($.isArray(obj)) {obj = {left: +obj[0], top: +obj[1] || 0};}if ('left' in obj) {this.offset.click.left = obj.left + this.margins.left;}if ('right' in obj) {this.offset.click.left = this.helperProportions.width - obj.right + this.margins.left;}if ('top' in obj) {this.offset.click.top = obj.top + this.margins.top;}if ('bottom' in obj) {this.offset.click.top = this.helperProportions.height - obj.bottom + this.margins.top;}},_getParentOffset: function() {//Get the offsetParent and cache its positionthis.offsetParent = this.helper.offsetParent();var po = this.offsetParent.offset();// This is a special case where we need to modify a offset calculated on start, since the following happened:// 1. The position of the helper is absolute, so it's position is calculated based on the next positioned parent// 2. The actual offset parent is a child of the scroll parent, and the scroll parent isn't the document, which means that// the scroll is included in the initial calculation of the offset of the parent, and never recalculated upon dragif(this.cssPosition == 'absolute' && this.scrollParent[0] != document && $.ui.contains(this.scrollParent[0], this.offsetParent[0])) {po.left += this.scrollParent.scrollLeft();po.top += this.scrollParent.scrollTop();}if((this.offsetParent[0] == document.body) //This needs to be actually done for all browsers, since pageX/pageY includes this information|| (this.offsetParent[0].tagName && this.offsetParent[0].tagName.toLowerCase() == 'html' && $.browser.msie)) //Ugly IE fixpo = { top: 0, left: 0 };return {top: po.top + (parseInt(this.offsetParent.css("borderTopWidth"),10) || 0),left: po.left + (parseInt(this.offsetParent.css("borderLeftWidth"),10) || 0)};},_getRelativeOffset: function() {if(this.cssPosition == "relative") {var p = this.element.position();return {top: p.top - (parseInt(this.helper.css("top"),10) || 0) + this.scrollParent.scrollTop(),left: p.left - (parseInt(this.helper.css("left"),10) || 0) + this.scrollParent.scrollLeft()};} else {return { top: 0, left: 0 };}},_cacheMargins: function() {this.margins = {left: (parseInt(this.element.css("marginLeft"),10) || 0),top: (parseInt(this.element.css("marginTop"),10) || 0)};},_cacheHelperProportions: function() {this.helperProportions = {width: this.helper.outerWidth(),height: this.helper.outerHeight()};},_setContainment: function() {var o = this.options;if(o.containment == 'parent') o.containment = this.helper[0].parentNode;if(o.containment == 'document' || o.containment == 'window') this.containment = [0 - this.offset.relative.left - this.offset.parent.left,0 - this.offset.relative.top - this.offset.parent.top,$(o.containment == 'document' ? document : window).width() - this.helperProportions.width - this.margins.left,($(o.containment == 'document' ? document : window).height() || document.body.parentNode.scrollHeight) - this.helperProportions.height - this.margins.top];if(!(/^(document|window|parent)$/).test(o.containment) && o.containment.constructor != Array) {var ce = $(o.containment)[0]; if(!ce) return;var co = $(o.containment).offset();var over = ($(ce).css("overflow") != 'hidden');this.containment = [co.left + (parseInt($(ce).css("borderLeftWidth"),10) || 0) + (parseInt($(ce).css("paddingLeft"),10) || 0) - this.margins.left,co.top + (parseInt($(ce).css("borderTopWidth"),10) || 0) + (parseInt($(ce).css("paddingTop"),10) || 0) - this.margins.top,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,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];} else if(o.containment.constructor == Array) {this.containment = o.containment;}},_convertPositionTo: function(d, pos) {if(!pos) pos = this.position;var mod = d == "absolute" ? 1 : -1;var o = this.options, scroll = this.cssPosition == 'absolute' && !(this.scrollParent[0] != document && $.ui.contains(this.scrollParent[0], this.offsetParent[0])) ? this.offsetParent : this.scrollParent, scrollIsRootNode = (/(html|body)/i).test(scroll[0].tagName);return {top: (pos.top // The absolute mouse position+ this.offset.relative.top * mod // Only for relative positioned nodes: Relative offset from element to offset parent+ this.offset.parent.top * mod // The offsetParent's offset without borders (offset + border)- ($.browser.safari && $.browser.version < 526 && this.cssPosition == 'fixed' ? 0 : ( this.cssPosition == 'fixed' ? -this.scrollParent.scrollTop() : ( scrollIsRootNode ? 0 : scroll.scrollTop() ) ) * mod)),left: (pos.left // The absolute mouse position+ this.offset.relative.left * mod // Only for relative positioned nodes: Relative offset from element to offset parent+ this.offset.parent.left * mod // The offsetParent's offset without borders (offset + border)- ($.browser.safari && $.browser.version < 526 && this.cssPosition == 'fixed' ? 0 : ( this.cssPosition == 'fixed' ? -this.scrollParent.scrollLeft() : scrollIsRootNode ? 0 : scroll.scrollLeft() ) * mod))};},_generatePosition: function(event) {var o = this.options, scroll = this.cssPosition == 'absolute' && !(this.scrollParent[0] != document && $.ui.contains(this.scrollParent[0], this.offsetParent[0])) ? this.offsetParent : this.scrollParent, scrollIsRootNode = (/(html|body)/i).test(scroll[0].tagName);var pageX = event.pageX;var pageY = event.pageY;/** - Position constraining -* Constrain the position to a mix of grid, containment.*/if(this.originalPosition) { //If we are not dragging yet, we won't check for optionsif(this.containment) {if(event.pageX - this.offset.click.left < this.containment[0]) pageX = this.containment[0] + this.offset.click.left;if(event.pageY - this.offset.click.top < this.containment[1]) pageY = this.containment[1] + this.offset.click.top;if(event.pageX - this.offset.click.left > this.containment[2]) pageX = this.containment[2] + this.offset.click.left;if(event.pageY - this.offset.click.top > this.containment[3]) pageY = this.containment[3] + this.offset.click.top;}if(o.grid) {var top = this.originalPageY + Math.round((pageY - this.originalPageY) / o.grid[1]) * o.grid[1];pageY = this.containment ? (!(top - this.offset.click.top < this.containment[1] || top - this.offset.click.top > this.containment[3]) ? top : (!(top - this.offset.click.top < this.containment[1]) ? top - o.grid[1] : top + o.grid[1])) : top;var left = this.originalPageX + Math.round((pageX - this.originalPageX) / o.grid[0]) * o.grid[0];pageX = this.containment ? (!(left - this.offset.click.left < this.containment[0] || left - this.offset.click.left > this.containment[2]) ? left : (!(left - this.offset.click.left < this.containment[0]) ? left - o.grid[0] : left + o.grid[0])) : left;}}return {top: (pageY // The absolute mouse position- this.offset.click.top // Click offset (relative to the element)- this.offset.relative.top // Only for relative positioned nodes: Relative offset from element to offset parent- this.offset.parent.top // The offsetParent's offset without borders (offset + border)+ ($.browser.safari && $.browser.version < 526 && this.cssPosition == 'fixed' ? 0 : ( this.cssPosition == 'fixed' ? -this.scrollParent.scrollTop() : ( scrollIsRootNode ? 0 : scroll.scrollTop() ) ))),left: (pageX // The absolute mouse position- this.offset.click.left // Click offset (relative to the element)- this.offset.relative.left // Only for relative positioned nodes: Relative offset from element to offset parent- this.offset.parent.left // The offsetParent's offset without borders (offset + border)+ ($.browser.safari && $.browser.version < 526 && this.cssPosition == 'fixed' ? 0 : ( this.cssPosition == 'fixed' ? -this.scrollParent.scrollLeft() : scrollIsRootNode ? 0 : scroll.scrollLeft() )))};},_clear: function() {this.helper.removeClass("ui-draggable-dragging");if(this.helper[0] != this.element[0] && !this.cancelHelperRemoval) this.helper.remove();//if($.ui.ddmanager) $.ui.ddmanager.current = null;this.helper = null;this.cancelHelperRemoval = false;},// From now on bulk stuff - mainly helpers_trigger: function(type, event, ui) {ui = ui || this._uiHash();$.ui.plugin.call(this, type, [event, ui]);if(type == "drag") this.positionAbs = this._convertPositionTo("absolute"); //The absolute position has to be recalculated after pluginsreturn $.Widget.prototype._trigger.call(this, type, event, ui);},plugins: {},_uiHash: function(event) {return {helper: this.helper,position: this.position,originalPosition: this.originalPosition,offset: this.positionAbs};}});$.extend($.ui.draggable, {version: "1.8.5"});$.ui.plugin.add("draggable", "connectToSortable", {start: function(event, ui) {var inst = $(this).data("draggable"), o = inst.options,uiSortable = $.extend({}, ui, { item: inst.element });inst.sortables = [];$(o.connectToSortable).each(function() {var sortable = $.data(this, 'sortable');if (sortable && !sortable.options.disabled) {inst.sortables.push({instance: sortable,shouldRevert: sortable.options.revert});sortable._refreshItems(); //Do a one-time refresh at start to refresh the containerCachesortable._trigger("activate", event, uiSortable);}});},stop: function(event, ui) {//If we are still over the sortable, we fake the stop event of the sortable, but also remove helpervar inst = $(this).data("draggable"),uiSortable = $.extend({}, ui, { item: inst.element });$.each(inst.sortables, function() {if(this.instance.isOver) {this.instance.isOver = 0;inst.cancelHelperRemoval = true; //Don't remove the helper in the draggable instancethis.instance.cancelHelperRemoval = false; //Remove it in the sortable instance (so sortable plugins like revert still work)//The sortable revert is supported, and we have to set a temporary dropped variable on the draggable to support revert: 'valid/invalid'if(this.shouldRevert) this.instance.options.revert = true;//Trigger the stop of the sortablethis.instance._mouseStop(event);this.instance.options.helper = this.instance.options._helper;//If the helper has been the original item, restore properties in the sortableif(inst.options.helper == 'original')this.instance.currentItem.css({ top: 'auto', left: 'auto' });} else {this.instance.cancelHelperRemoval = false; //Remove the helper in the sortable instancethis.instance._trigger("deactivate", event, uiSortable);}});},drag: function(event, ui) {var inst = $(this).data("draggable"), self = this;var checkPos = function(o) {var dyClick = this.offset.click.top, dxClick = this.offset.click.left;var helperTop = this.positionAbs.top, helperLeft = this.positionAbs.left;var itemHeight = o.height, itemWidth = o.width;var itemTop = o.top, itemLeft = o.left;return $.ui.isOver(helperTop + dyClick, helperLeft + dxClick, itemTop, itemLeft, itemHeight, itemWidth);};$.each(inst.sortables, function(i) {//Copy over some variables to allow calling the sortable's native _intersectsWiththis.instance.positionAbs = inst.positionAbs;this.instance.helperProportions = inst.helperProportions;this.instance.offset.click = inst.offset.click;if(this.instance._intersectsWith(this.instance.containerCache)) {//If it intersects, we use a little isOver variable and set it once, so our move-in stuff gets fired only onceif(!this.instance.isOver) {this.instance.isOver = 1;//Now we fake the start of dragging for the sortable instance,//by cloning the list group item, appending it to the sortable and using it as inst.currentItem//We can then fire the start event of the sortable with our passed browser event, and our own helper (so it doesn't create a new one)this.instance.currentItem = $(self).clone().appendTo(this.instance.element).data("sortable-item", true);this.instance.options._helper = this.instance.options.helper; //Store helper option to later restore itthis.instance.options.helper = function() { return ui.helper[0]; };event.target = this.instance.currentItem[0];this.instance._mouseCapture(event, true);this.instance._mouseStart(event, true, true);//Because the browser event is way off the new appended portlet, we modify a couple of variables to reflect the changesthis.instance.offset.click.top = inst.offset.click.top;this.instance.offset.click.left = inst.offset.click.left;this.instance.offset.parent.left -= inst.offset.parent.left - this.instance.offset.parent.left;this.instance.offset.parent.top -= inst.offset.parent.top - this.instance.offset.parent.top;inst._trigger("toSortable", event);inst.dropped = this.instance.element; //draggable revert needs that//hack so receive/update callbacks work (mostly)inst.currentItem = inst.element;this.instance.fromOutside = inst;}//Provided we did all the previous steps, we can fire the drag event of the sortable on every draggable drag, when it intersects with the sortableif(this.instance.currentItem) this.instance._mouseDrag(event);} else {//If it doesn't intersect with the sortable, and it intersected before,//we fake the drag stop of the sortable, but make sure it doesn't remove the helper by using cancelHelperRemovalif(this.instance.isOver) {this.instance.isOver = 0;this.instance.cancelHelperRemoval = true;//Prevent reverting on this forced stopthis.instance.options.revert = false;// The out event needs to be triggered independentlythis.instance._trigger('out', event, this.instance._uiHash(this.instance));this.instance._mouseStop(event, true);this.instance.options.helper = this.instance.options._helper;//Now we remove our currentItem, the list group clone again, and the placeholder, and animate the helper back to it's original sizethis.instance.currentItem.remove();if(this.instance.placeholder) this.instance.placeholder.remove();inst._trigger("fromSortable", event);inst.dropped = false; //draggable revert needs that}};});}});$.ui.plugin.add("draggable", "cursor", {start: function(event, ui) {var t = $('body'), o = $(this).data('draggable').options;if (t.css("cursor")) o._cursor = t.css("cursor");t.css("cursor", o.cursor);},stop: function(event, ui) {var o = $(this).data('draggable').options;if (o._cursor) $('body').css("cursor", o._cursor);}});$.ui.plugin.add("draggable", "iframeFix", {start: function(event, ui) {var o = $(this).data('draggable').options;$(o.iframeFix === true ? "iframe" : o.iframeFix).each(function() {$('<div class="ui-draggable-iframeFix" style="background: #fff;"></div>').css({width: this.offsetWidth+"px", height: this.offsetHeight+"px",position: "absolute", opacity: "0.001", zIndex: 1000}).css($(this).offset()).appendTo("body");});},stop: function(event, ui) {$("div.ui-draggable-iframeFix").each(function() { this.parentNode.removeChild(this); }); //Remove frame helpers}});$.ui.plugin.add("draggable", "opacity", {start: function(event, ui) {var t = $(ui.helper), o = $(this).data('draggable').options;if(t.css("opacity")) o._opacity = t.css("opacity");t.css('opacity', o.opacity);},stop: function(event, ui) {var o = $(this).data('draggable').options;if(o._opacity) $(ui.helper).css('opacity', o._opacity);}});$.ui.plugin.add("draggable", "scroll", {start: function(event, ui) {var i = $(this).data("draggable");if(i.scrollParent[0] != document && i.scrollParent[0].tagName != 'HTML') i.overflowOffset = i.scrollParent.offset();},drag: function(event, ui) {var i = $(this).data("draggable"), o = i.options, scrolled = false;if(i.scrollParent[0] != document && i.scrollParent[0].tagName != 'HTML') {if(!o.axis || o.axis != 'x') {if((i.overflowOffset.top + i.scrollParent[0].offsetHeight) - event.pageY < o.scrollSensitivity)i.scrollParent[0].scrollTop = scrolled = i.scrollParent[0].scrollTop + o.scrollSpeed;else if(event.pageY - i.overflowOffset.top < o.scrollSensitivity)i.scrollParent[0].scrollTop = scrolled = i.scrollParent[0].scrollTop - o.scrollSpeed;}if(!o.axis || o.axis != 'y') {if((i.overflowOffset.left + i.scrollParent[0].offsetWidth) - event.pageX < o.scrollSensitivity)i.scrollParent[0].scrollLeft = scrolled = i.scrollParent[0].scrollLeft + o.scrollSpeed;else if(event.pageX - i.overflowOffset.left < o.scrollSensitivity)i.scrollParent[0].scrollLeft = scrolled = i.scrollParent[0].scrollLeft - o.scrollSpeed;}} else {if(!o.axis || o.axis != 'x') {if(event.pageY - $(document).scrollTop() < o.scrollSensitivity)scrolled = $(document).scrollTop($(document).scrollTop() - o.scrollSpeed);else if($(window).height() - (event.pageY - $(document).scrollTop()) < o.scrollSensitivity)scrolled = $(document).scrollTop($(document).scrollTop() + o.scrollSpeed);}if(!o.axis || o.axis != 'y') {if(event.pageX - $(document).scrollLeft() < o.scrollSensitivity)scrolled = $(document).scrollLeft($(document).scrollLeft() - o.scrollSpeed);else if($(window).width() - (event.pageX - $(document).scrollLeft()) < o.scrollSensitivity)scrolled = $(document).scrollLeft($(document).scrollLeft() + o.scrollSpeed);}}if(scrolled !== false && $.ui.ddmanager && !o.dropBehaviour)$.ui.ddmanager.prepareOffsets(i, event);}});$.ui.plugin.add("draggable", "snap", {start: function(event, ui) {var i = $(this).data("draggable"), o = i.options;i.snapElements = [];$(o.snap.constructor != String ? ( o.snap.items || ':data(draggable)' ) : o.snap).each(function() {var $t = $(this); var $o = $t.offset();if(this != i.element[0]) i.snapElements.push({item: this,width: $t.outerWidth(), height: $t.outerHeight(),top: $o.top, left: $o.left});});},drag: function(event, ui) {var inst = $(this).data("draggable"), o = inst.options;var d = o.snapTolerance;var x1 = ui.offset.left, x2 = x1 + inst.helperProportions.width,y1 = ui.offset.top, y2 = y1 + inst.helperProportions.height;for (var i = inst.snapElements.length - 1; i >= 0; i--){var l = inst.snapElements[i].left, r = l + inst.snapElements[i].width,t = inst.snapElements[i].top, b = t + inst.snapElements[i].height;//Yes, I know, this is insane ;)if(!((l-d < x1 && x1 < r+d && t-d < y1 && y1 < b+d) || (l-d < x1 && x1 < r+d && t-d < y2 && y2 < b+d) || (l-d < x2 && x2 < r+d && t-d < y1 && y1 < b+d) || (l-d < x2 && x2 < r+d && t-d < y2 && y2 < b+d))) {if(inst.snapElements[i].snapping) (inst.options.snap.release && inst.options.snap.release.call(inst.element, event, $.extend(inst._uiHash(), { snapItem: inst.snapElements[i].item })));inst.snapElements[i].snapping = false;continue;}if(o.snapMode != 'inner') {var ts = Math.abs(t - y2) <= d;var bs = Math.abs(b - y1) <= d;var ls = Math.abs(l - x2) <= d;var rs = Math.abs(r - x1) <= d;if(ts) ui.position.top = inst._convertPositionTo("relative", { top: t - inst.helperProportions.height, left: 0 }).top - inst.margins.top;if(bs) ui.position.top = inst._convertPositionTo("relative", { top: b, left: 0 }).top - inst.margins.top;if(ls) ui.position.left = inst._convertPositionTo("relative", { top: 0, left: l - inst.helperProportions.width }).left - inst.margins.left;if(rs) ui.position.left = inst._convertPositionTo("relative", { top: 0, left: r }).left - inst.margins.left;}var first = (ts || bs || ls || rs);if(o.snapMode != 'outer') {var ts = Math.abs(t - y1) <= d;var bs = Math.abs(b - y2) <= d;var ls = Math.abs(l - x1) <= d;var rs = Math.abs(r - x2) <= d;if(ts) ui.position.top = inst._convertPositionTo("relative", { top: t, left: 0 }).top - inst.margins.top;if(bs) ui.position.top = inst._convertPositionTo("relative", { top: b - inst.helperProportions.height, left: 0 }).top - inst.margins.top;if(ls) ui.position.left = inst._convertPositionTo("relative", { top: 0, left: l }).left - inst.margins.left;if(rs) ui.position.left = inst._convertPositionTo("relative", { top: 0, left: r - inst.helperProportions.width }).left - inst.margins.left;}if(!inst.snapElements[i].snapping && (ts || bs || ls || rs || first))(inst.options.snap.snap && inst.options.snap.snap.call(inst.element, event, $.extend(inst._uiHash(), { snapItem: inst.snapElements[i].item })));inst.snapElements[i].snapping = (ts || bs || ls || rs || first);};}});$.ui.plugin.add("draggable", "stack", {start: function(event, ui) {var o = $(this).data("draggable").options;var group = $.makeArray($(o.stack)).sort(function(a,b) {return (parseInt($(a).css("zIndex"),10) || 0) - (parseInt($(b).css("zIndex"),10) || 0);});if (!group.length) { return; }var min = parseInt(group[0].style.zIndex) || 0;$(group).each(function(i) {this.style.zIndex = min + i;});this[0].style.zIndex = min + group.length;}});$.ui.plugin.add("draggable", "zIndex", {start: function(event, ui) {var t = $(ui.helper), o = $(this).data("draggable").options;if(t.css("zIndex")) o._zIndex = t.css("zIndex");t.css('zIndex', o.zIndex);},stop: function(event, ui) {var o = $(this).data("draggable").options;if(o._zIndex) $(ui.helper).css('zIndex', o._zIndex);}});})(jQuery);