/*
 * jQuery UI Droppable 1.6
 *
 * Copyright (c) 2008 AUTHORS.txt (http://ui.jquery.com/about)
 * Dual licensed under the MIT (MIT-LICENSE.txt)
 * and GPL (GPL-LICENSE.txt) licenses.
 *
 * http://docs.jquery.com/UI/Droppables
 *
 * Depends:
 *	ui.core.js
 *	ui.draggable.js
 */
(function(A){A.widget("ui.droppable",{_init:function(){var C=this.options,B=C.accept;this.isover=0;this.isout=1;this.options.accept=this.options.accept&&A.isFunction(this.options.accept)?this.options.accept:function(D){return D.is(B)};this.proportions={width:this.element[0].offsetWidth,height:this.element[0].offsetHeight};A.ui.ddmanager.droppables[this.options.scope]=A.ui.ddmanager.droppables[this.options.scope]||[];A.ui.ddmanager.droppables[this.options.scope].push(this);(this.options.cssNamespace&&this.element.addClass(this.options.cssNamespace+"-droppable"))},destroy:function(){var B=A.ui.ddmanager.droppables[this.options.scope];for(var C=0;C<B.length;C++){if(B[C]==this){B.splice(C,1)}}this.element.removeClass("ui-droppable-disabled").removeData("droppable").unbind(".droppable")},_setData:function(B,C){if(B=="accept"){this.options.accept=C&&A.isFunction(C)?C:function(D){return D.is(accept)}}else{A.widget.prototype._setData.apply(this,arguments)}},_activate:function(C){var B=A.ui.ddmanager.current;A.ui.plugin.call(this,"activate",[C,this.ui(B)]);if(B){this.element.triggerHandler("dropactivate",[C,this.ui(B)],this.options.activate)}},_deactivate:function(C){var B=A.ui.ddmanager.current;A.ui.plugin.call(this,"deactivate",[C,this.ui(B)]);if(B){this.element.triggerHandler("dropdeactivate",[C,this.ui(B)],this.options.deactivate)}},_over:function(C){var B=A.ui.ddmanager.current;if(!B||(B.currentItem||B.element)[0]==this.element[0]){return }if(this.options.accept.call(this.element,(B.currentItem||B.element))){A.ui.plugin.call(this,"over",[C,this.ui(B)]);this.element.triggerHandler("dropover",[C,this.ui(B)],this.options.over)}},_out:function(C){var B=A.ui.ddmanager.current;if(!B||(B.currentItem||B.element)[0]==this.element[0]){return }if(this.options.accept.call(this.element,(B.currentItem||B.element))){A.ui.plugin.call(this,"out",[C,this.ui(B)]);this.element.triggerHandler("dropout",[C,this.ui(B)],this.options.out)}},_drop:function(C,D){var B=D||A.ui.ddmanager.current;if(!B||(B.currentItem||B.element)[0]==this.element[0]){return false}var E=false;this.element.find(":data(droppable)").not(".ui-draggable-dragging").each(function(){var F=A.data(this,"droppable");if(F.options.greedy&&A.ui.intersect(B,A.extend(F,{offset:F.element.offset()}),F.options.tolerance)){E=true;return false}});if(E){return false}if(this.options.accept.call(this.element,(B.currentItem||B.element))){A.ui.plugin.call(this,"drop",[C,this.ui(B)]);this.element.triggerHandler("drop",[C,this.ui(B)],this.options.drop);return this.element}return false},plugins:{},ui:function(B){return{draggable:(B.currentItem||B.element),helper:B.helper,position:B.position,absolutePosition:B.positionAbs,options:this.options,element:this.element}}});A.extend(A.ui.droppable,{version:"1.6",defaults:{accept:"*",activeClass:null,cssNamespace:"ui",greedy:false,hoverClass:null,scope:"default",tolerance:"intersect"}});A.ui.intersect=function(O,I,M){if(!I.offset){return false}var D=(O.positionAbs||O.position.absolute).left,C=D+O.helperProportions.width,L=(O.positionAbs||O.position.absolute).top,K=L+O.helperProportions.height;var F=I.offset.left,B=F+I.proportions.width,N=I.offset.top,J=N+I.proportions.height;switch(M){case"fit":return(F<D&&C<B&&N<L&&K<J);break;case"intersect":return(F<D+(O.helperProportions.width/2)&&C-(O.helperProportions.width/2)<B&&N<L+(O.helperProportions.height/2)&&K-(O.helperProportions.height/2)<J);break;case"pointer":var G=((O.positionAbs||O.position.absolute).left+(O.clickOffset||O.offset.click).left),H=((O.positionAbs||O.position.absolute).top+(O.clickOffset||O.offset.click).top),E=A.ui.isOver(H,G,N,F,I.proportions.height,I.proportions.width);return E;break;case"touch":return((L>=N&&L<=J)||(K>=N&&K<=J)||(L<N&&K>J))&&((D>=F&&D<=B)||(C>=F&&C<=B)||(D<F&&C>B));break;default:return false;break}};A.ui.ddmanager={current:null,droppables:{"default":[]},prepareOffsets:function(E,G){var B=A.ui.ddmanager.droppables[E.options.scope];var F=G?G.type:null;var H=(E.currentItem||E.element).find(":data(droppable)").andSelf();droppablesLoop:for(var D=0;D<B.length;D++){if(B[D].options.disabled||(E&&!B[D].options.accept.call(B[D].element,(E.currentItem||E.element)))){continue}for(var C=0;C<H.length;C++){if(H[C]==B[D].element[0]){B[D].proportions.height=0;continue droppablesLoop}}B[D].visible=B[D].element.css("display")!="none";if(!B[D].visible){continue}B[D].offset=B[D].element.offset();B[D].proportions={width:B[D].element[0].offsetWidth,height:B[D].element[0].offsetHeight};if(F=="dragstart"||F=="sortactivate"){B[D]._activate.call(B[D],G)}}},drop:function(B,C){var D=false;A.each(A.ui.ddmanager.droppables[B.options.scope],function(){if(!this.options){return }if(!this.options.disabled&&this.visible&&A.ui.intersect(B,this,this.options.tolerance)){D=this._drop.call(this,C)}if(!this.options.disabled&&this.visible&&this.options.accept.call(this.element,(B.currentItem||B.element))){this.isout=1;this.isover=0;this._deactivate.call(this,C)}});return D},drag:function(B,C){if(B.options.refreshPositions){A.ui.ddmanager.prepareOffsets(B,C)}A.each(A.ui.ddmanager.droppables[B.options.scope],function(){if(this.options.disabled||this.greedyChild||!this.visible){return }var E=A.ui.intersect(B,this,this.options.tolerance);var G=!E&&this.isover==1?"isout":(E&&this.isover==0?"isover":null);if(!G){return }var F;if(this.options.greedy){var D=this.element.parents(":data(droppable):eq(0)");if(D.length){F=A.data(D[0],"droppable");F.greedyChild=(G=="isover"?1:0)}}if(F&&G=="isover"){F["isover"]=0;F["isout"]=1;F._out.call(F,C)}this[G]=1;this[G=="isout"?"isover":"isout"]=0;this[G=="isover"?"_over":"_out"].call(this,C);if(F&&G=="isout"){F["isout"]=0;F["isover"]=1;F._over.call(F,C)}})}};A.ui.plugin.add("droppable","activeClass",{activate:function(B,C){A(this).addClass(C.options.activeClass)},deactivate:function(B,C){A(this).removeClass(C.options.activeClass)},drop:function(B,C){A(this).removeClass(C.options.activeClass)}});A.ui.plugin.add("droppable","hoverClass",{over:function(B,C){A(this).addClass(C.options.hoverClass)},out:function(B,C){A(this).removeClass(C.options.hoverClass)},drop:function(B,C){A(this).removeClass(C.options.hoverClass)}})})(jQuery)