//The element's absolute position on the page minus margins
this.offset=this.currentItem.offset(),this.offset={top:this.offset.top-this.margins.top,left:this.offset.left-this.margins.left},a.extend(this.offset,{click:{//Where the click happened, relative to the element
this._preserveHelperProportions||this._cacheHelperProportions(),!d)for(e=this.containers.length-1;e>=0;e--)this.containers[e]._trigger("activate",b,this._uiHash(this));//Execute the drag once - this causes the helper not to be visible before getting its correct position
//$(this.placeholder[0]).remove(); would have been the jQuery way - unfortunately, it unbinds ALL events from the original node!
returnthis.placeholder&&(this.placeholder[0].parentNode&&this.placeholder[0].parentNode.removeChild(this.placeholder[0]),"original"!==this.options.helper&&this.helper&&this.helper[0].parentNode&&this.helper.remove(),a.extend(this,{helper:null,dragging:!1,reverting:!1,_noFinalSort:null}),this.domPosition.prev?a(this.domPosition.prev).after(this.currentItem):a(this.domPosition.parent).prepend(this.currentItem)),this},serialize:function(b){varc=this._getItemsAsjQuery(b&&b.connected),d=[];returnb=b||{},a(c).each(function(){varc=(a(b.item||this).attr(b.attribute||"id")||"").match(b.expression||/(.+)[\-=_](.+)/);c&&d.push((b.key||c[1]+"[]")+"="+(b.key&&b.expression?c[1]:c[2]))}),!d.length&&b.key&&d.push(b.key+"="),d.join("&")},toArray:function(b){varc=this._getItemsAsjQuery(b&&b.connected),d=[];returnb=b||{},c.each(function(){d.push(a(b.item||this).attr(b.attribute||"id")||"")}),d},/* Be careful with the following core functions */
_intersectsWith:function(a){varb=this.positionAbs.left,c=b+this.helperProportions.width,d=this.positionAbs.top,e=d+this.helperProportions.height,f=a.left,g=f+a.width,h=a.top,i=h+a.height,j=this.offset.click.top,k=this.offset.click.left,l="x"===this.options.axis||d+j>h&&i>d+j,m="y"===this.options.axis||b+k>f&&g>b+k,n=l&&m;// Right Half
// Left Half
// Bottom Half
return"pointer"===this.options.tolerance||this.options.forcePointerForContainers||"pointer"!==this.options.tolerance&&this.helperProportions[this.floating?"width":"height"]>a[this.floating?"width":"height"]?n:f<b+this.helperProportions.width/2&&c-this.helperProportions.width/2<g&&h<d+this.helperProportions.height/2&&e-this.helperProportions.height/2<i},_intersectsWithPointer:function(a){varb="x"===this.options.axis||this._isOverAxis(this.positionAbs.top+this.offset.click.top,a.top,a.height),c="y"===this.options.axis||this._isOverAxis(this.positionAbs.left+this.offset.click.left,a.left,a.width),d=b&&c,e=this._getDragVerticalDirection(),f=this._getDragHorizontalDirection();returnd?this.floating?f&&"right"===f||"down"===e?2:1:e&&("down"===e?2:1):!1},_intersectsWithSides:function(a){varb=this._isOverAxis(this.positionAbs.top+this.offset.click.top,a.top+a.height/2,a.height),c=this._isOverAxis(this.positionAbs.left+this.offset.click.left,a.left+a.width/2,a.width),d=this._getDragVerticalDirection(),e=this._getDragHorizontalDirection();returnthis.floating&&e?"right"===e&&c||"left"===e&&!c:d&&("down"===d&&b||"up"===d&&!b)},_getDragVerticalDirection:function(){vara=this.positionAbs.top-this.lastPositionAbs.top;return0!==a&&(a>0?"down":"up")},_getDragHorizontalDirection:function(){vara=this.positionAbs.left-this.lastPositionAbs.left;return0!==a&&(a>0?"right":"left")},refresh:function(a){returnthis._refreshItems(a),this._setHandleClassName(),this.refreshPositions(),this},_connectWith:function(){vara=this.options;returna.connectWith.constructor===String?[a.connectWith]:a.connectWith},_getItemsAsjQuery:function(b){functionc(){h.push(this)}vard,e,f,g,h=[],i=[],j=this._connectWith();if(j&&b)for(d=j.length-1;d>=0;d--)for(f=a(j[d],this.document[0]),e=f.length-1;e>=0;e--)g=a.data(f[e],this.widgetFullName),g&&g!==this&&!g.options.disabled&&i.push([a.isFunction(g.options.items)?g.options.items.call(g.element):a(g.options.items,g.element).not(".ui-sortable-helper").not(".ui-sortable-placeholder"),g]);for(i.push([a.isFunction(this.options.items)?this.options.items.call(this.element,null,{options:this.options,item:this.currentItem}):a(this.options.items,this.element).not(".ui-sortable-helper").not(".ui-sortable-placeholder"),this]),d=i.length-1;d>=0;d--)i[d][0].each(c);returna(h)},_removeCurrentsFromItems:function(){varb=this.currentItem.find(":data("+this.widgetName+"-item)");this.items=a.grep(this.items,function(a){for(varc=0;c<b.length;c++)if(b[c]===a.item[0])return!1;return!0})},_refreshItems:function(b){this.items=[],this.containers=[this];varc,d,e,f,g,h,i,j,k=this.items,l=[[a.isFunction(this.options.items)?this.options.items.call(this.element[0],b,{item:this.currentItem}):a(this.options.items,this.element),this]],m=this._connectWith();if(m&&this.ready)//Shouldn't be run the first time through due to massive slow-down
// 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 drag
// This needs to be actually done for all browsers, since pageX/pageY includes this information
// with an ugly IE fix
return"absolute"===this.cssPosition&&this.scrollParent[0]!==this.document[0]&&a.contains(this.scrollParent[0],this.offsetParent[0])&&(b.left+=this.scrollParent.scrollLeft(),b.top+=this.scrollParent.scrollTop()),(this.offsetParent[0]===this.document[0].body||this.offsetParent[0].tagName&&"html"===this.offsetParent[0].tagName.toLowerCase()&&a.ui.ie)&&(b={top:0,left:0}),{top:b.top+(parseInt(this.offsetParent.css("borderTopWidth"),10)||0),left:b.left+(parseInt(this.offsetParent.css("borderLeftWidth"),10)||0)}},_getRelativeOffset:function(){if("relative"===this.cssPosition){vara=this.currentItem.position();return{top:a.top-(parseInt(this.helper.css("top"),10)||0)+this.scrollParent.scrollTop(),left:a.left-(parseInt(this.helper.css("left"),10)||0)+this.scrollParent.scrollLeft()}}return{top:0,left:0}},_cacheMargins:function(){this.margins={left:parseInt(this.currentItem.css("marginLeft"),10)||0,top:parseInt(this.currentItem.css("marginTop"),10)||0}},_cacheHelperProportions:function(){this.helperProportions={width:this.helper.outerWidth(),height:this.helper.outerHeight()}},_setContainment:function(){varb,c,d,e=this.options;"parent"===e.containment&&(e.containment=this.helper[0].parentNode),("document"===e.containment||"window"===e.containment)&&(this.containment=[0-this.offset.relative.left-this.offset.parent.left,0-this.offset.relative.top-this.offset.parent.top,"document"===e.containment?this.document.width():this.window.width()-this.helperProportions.width-this.margins.left,("document"===e.containment?this.document.width():this.window.height()||this.document[0].body.parentNode.scrollHeight)-this.helperProportions.height-this.margins.top]),/^(document|window|parent)$/.test(e.containment)||(b=a(e.containment)[0],c=a(e.containment).offset(),d="hidden"!==a(b).css("overflow"),this.containment=[c.left+(parseInt(a(b).css("borderLeftWidth"),10)||0)+(parseInt(a(b).css("paddingLeft"),10)||0)-this.margins.left,c.top+(parseInt(a(b).css("borderTopWidth"),10)||0)+(parseInt(a(b).css("paddingTop"),10)||0)-this.margins.top,c.left+(d?Math.max(b.scrollWidth,b.offsetWidth):b.offsetWidth)-(parseInt(a(b).css("borderLeftWidth"),10)||0)-(parseInt(a(b).css("paddingRight"),10)||0)-this.helperProportions.width-this.margins.left,c.top+(d?Math.max(b.scrollHeight,b.offsetHeight):b.offsetHeight)-(parseInt(a(b).css("borderTopWidth"),10)||0)-(parseInt(a(b).css("paddingBottom"),10)||0)-this.helperProportions.height-this.margins.top])},_convertPositionTo:function(b,c){c||(c=this.position);vard="absolute"===b?1:-1,e="absolute"!==this.cssPosition||this.scrollParent[0]!==this.document[0]&&a.contains(this.scrollParent[0],this.offsetParent[0])?this.scrollParent:this.offsetParent,f=/(html|body)/i.test(e[0].tagName);return{top:c.top+// The absolute mouse position
this.offset.relative.top*d+// Only for relative positioned nodes: Relative offset from element to offset parent
this.offset.parent.top*d-// The offsetParent's offset without borders (offset + border)
("fixed"===this.cssPosition?-this.scrollParent.scrollTop():f?0:e.scrollTop())*d,left:c.left+// The absolute mouse position
this.offset.relative.left*d+// Only for relative positioned nodes: Relative offset from element to offset parent
this.offset.parent.left*d-// The offsetParent's offset without borders (offset + border)
// This is another very weird special case that only happens for relative elements:
// 1. If the css position is relative
// 2. and the scroll parent is the document or similar to the offset parent
// we have to refresh the relative offset during the scroll so there are no jumps
/*
*-Positionconstraining-
*Constrainthepositiontoamixofgrid,containment.
*/
//If we are not dragging yet, we won't check for options
return"relative"!==this.cssPosition||this.scrollParent[0]!==this.document[0]&&this.scrollParent[0]!==this.offsetParent[0]||(this.offset.relative=this._getRelativeOffset()),this.originalPosition&&(this.containment&&(b.pageX-this.offset.click.left<this.containment[0]&&(f=this.containment[0]+this.offset.click.left),b.pageY-this.offset.click.top<this.containment[1]&&(g=this.containment[1]+this.offset.click.top),b.pageX-this.offset.click.left>this.containment[2]&&(f=this.containment[2]+this.offset.click.left),b.pageY-this.offset.click.top>this.containment[3]&&(g=this.containment[3]+this.offset.click.top)),e.grid&&(c=this.originalPageY+Math.round((g-this.originalPageY)/e.grid[1])*e.grid[1],g=this.containment?c-this.offset.click.top>=this.containment[1]&&c-this.offset.click.top<=this.containment[3]?c:c-this.offset.click.top>=this.containment[1]?c-e.grid[1]:c+e.grid[1]:c,d=this.originalPageX+Math.round((f-this.originalPageX)/e.grid[0])*e.grid[0],f=this.containment?d-this.offset.click.left>=this.containment[0]&&d-this.offset.click.left<=this.containment[2]?d:d-this.offset.click.left>=this.containment[0]?d-e.grid[0]:d+e.grid[0]:d)),{top:g-// 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)
"fixed"===this.cssPosition?-this.scrollParent.scrollTop():i?0:h.scrollTop()),left:f-// 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)
//$(this.placeholder[0]).remove(); would have been the jQuery way - unfortunately, it unbinds ALL events from the original node!
this.placeholder[0].parentNode.removeChild(this.placeholder[0]),this.cancelHelperRemoval||(this.helper[0]!==this.currentItem[0]&&this.helper.remove(),this.helper=null),!b){for(d=0;d<e.length;d++)e[d].call(this,a);//Trigger all delayed events