/*
 * jQuery UI Droppable 1.8.1
 *
 * Copyright (c) 2010 AUTHORS.txt (http://jqueryui.com/about)
 * Dual licensed under the MIT (MIT-LICENSE.txt)
 * and GPL (GPL-LICENSE.txt) licenses.
 *
 * http://docs.jquery.com/UI/Droppables
 *
 * Depends:
 *	jquery.ui.core.js
 *	jquery.ui.widget.js
 *	jquery.ui.mouse.js
 *	jquery.ui.draggable.js
 */

(function(d){d.widget("ui.droppable",{widgetEventPrefix:"drop",options:{accept:"*",activeClass:!1,addClasses:!0,greedy:!1,hoverClass:!1,scope:"default",tolerance:"intersect"},_create:function(){var a=this.options,b=a.accept;this.isover=0;this.isout=1;this.accept=d.isFunction(b)?b:function(a){return a.is(b)};this.proportions={width:this.element[0].offsetWidth,height:this.element[0].offsetHeight};d.ui.ddmanager.droppables[a.scope]=d.ui.ddmanager.droppables[a.scope]||[];d.ui.ddmanager.droppables[a.scope].push(this);
a.addClasses&&this.element.addClass("ui-droppable")},destroy:function(){for(var a=d.ui.ddmanager.droppables[this.options.scope],b=0;b<a.length;b++)a[b]==this&&a.splice(b,1);this.element.removeClass("ui-droppable ui-droppable-disabled").removeData("droppable").unbind(".droppable");return this},_setOption:function(a,b){if(a=="accept")this.accept=d.isFunction(b)?b:function(a){return a.is(b)};d.Widget.prototype._setOption.apply(this,arguments)},_activate:function(a){var b=d.ui.ddmanager.current;this.options.activeClass&&
this.element.addClass(this.options.activeClass);b&&this._trigger("activate",a,this.ui(b))},_deactivate:function(a){var b=d.ui.ddmanager.current;this.options.activeClass&&this.element.removeClass(this.options.activeClass);b&&this._trigger("deactivate",a,this.ui(b))},_over:function(a){var b=d.ui.ddmanager.current;if(b&&(b.currentItem||b.element)[0]!=this.element[0])if(this.accept.call(this.element[0],b.currentItem||b.element))this.options.hoverClass&&this.element.addClass(this.options.hoverClass),this._trigger("over",
a,this.ui(b))},_out:function(a){var b=d.ui.ddmanager.current;if(b&&(b.currentItem||b.element)[0]!=this.element[0])if(this.accept.call(this.element[0],b.currentItem||b.element))this.options.hoverClass&&this.element.removeClass(this.options.hoverClass),this._trigger("out",a,this.ui(b))},_drop:function(a,b){var c=b||d.ui.ddmanager.current;if(!c||(c.currentItem||c.element)[0]==this.element[0])return!1;var e=!1;this.element.find(":data(droppable)").not(".ui-draggable-dragging").each(function(){var a=d.data(this,
"droppable");if(a.options.greedy&&!a.options.disabled&&a.options.scope==c.options.scope&&a.accept.call(a.element[0],c.currentItem||c.element)&&d.ui.intersect(c,d.extend(a,{offset:a.element.offset()}),a.options.tolerance))return e=!0,!1});if(e)return!1;if(this.accept.call(this.element[0],c.currentItem||c.element))return this.options.activeClass&&this.element.removeClass(this.options.activeClass),this.options.hoverClass&&this.element.removeClass(this.options.hoverClass),this._trigger("drop",a,this.ui(c)),
this.element;return!1},ui:function(a){return{draggable:a.currentItem||a.element,helper:a.helper,position:a.position,offset:a.positionAbs}}});d.extend(d.ui.droppable,{version:"1.8.1"});d.ui.intersect=function(a,b,c){if(!b.offset)return!1;var e=(a.positionAbs||a.position.absolute).left,g=e+a.helperProportions.width,f=(a.positionAbs||a.position.absolute).top,h=f+a.helperProportions.height,i=b.offset.left,k=i+b.proportions.width,j=b.offset.top,l=j+b.proportions.height;switch(c){case "fit":return i<e&&
g<k&&j<f&&h<l;case "intersect":return i<e+a.helperProportions.width/2&&g-a.helperProportions.width/2<k&&j<f+a.helperProportions.height/2&&h-a.helperProportions.height/2<l;case "pointer":return d.ui.isOver((a.positionAbs||a.position.absolute).top+(a.clickOffset||a.offset.click).top,(a.positionAbs||a.position.absolute).left+(a.clickOffset||a.offset.click).left,j,i,b.proportions.height,b.proportions.width);case "touch":return(f>=j&&f<=l||h>=j&&h<=l||f<j&&h>l)&&(e>=i&&e<=k||g>=i&&g<=k||e<i&&g>k);default:return!1}};
d.ui.ddmanager={current:null,droppables:{"default":[]},prepareOffsets:function(a,b){var c=d.ui.ddmanager.droppables[a.options.scope]||[],e=b?b.type:null,g=(a.currentItem||a.element).find(":data(droppable)").andSelf(),f=0;a:for(;f<c.length;f++)if(!(c[f].options.disabled||a&&!c[f].accept.call(c[f].element[0],a.currentItem||a.element))){for(var h=0;h<g.length;h++)if(g[h]==c[f].element[0]){c[f].proportions.height=0;continue a}c[f].visible=c[f].element.css("display")!="none";if(c[f].visible)c[f].offset=
c[f].element.offset(),c[f].proportions={width:c[f].element[0].offsetWidth,height:c[f].element[0].offsetHeight},e=="mousedown"&&c[f]._activate.call(c[f],b)}},drop:function(a,b){var c=!1;d.each(d.ui.ddmanager.droppables[a.options.scope]||[],function(){if(this.options&&(!this.options.disabled&&this.visible&&d.ui.intersect(a,this,this.options.tolerance)&&(c=c||this._drop.call(this,b)),!this.options.disabled&&this.visible&&this.accept.call(this.element[0],a.currentItem||a.element)))this.isout=1,this.isover=
0,this._deactivate.call(this,b)});return c},drag:function(a,b){a.options.refreshPositions&&d.ui.ddmanager.prepareOffsets(a,b);d.each(d.ui.ddmanager.droppables[a.options.scope]||[],function(){if(!this.options.disabled&&!this.greedyChild&&this.visible){var c=d.ui.intersect(a,this,this.options.tolerance);if(c=!c&&this.isover==1?"isout":c&&this.isover==0?"isover":null){var e;if(this.options.greedy){var g=this.element.parents(":data(droppable):eq(0)");if(g.length)e=d.data(g[0],"droppable"),e.greedyChild=
c=="isover"?1:0}if(e&&c=="isover")e.isover=0,e.isout=1,e._out.call(e,b);this[c]=1;this[c=="isout"?"isover":"isout"]=0;this[c=="isover"?"_over":"_out"].call(this,b);if(e&&c=="isout")e.isout=0,e.isover=1,e._over.call(e,b)}}})}}})(jQuery);
