(function($){$.widget("ui.selectable",$.extend($.ui.mouse,{init:function(){var self=this;this.element.addClass("ui-selectable");this.dragged=false;var selectees;this.refresh=function(){selectees=$(self.options.filter,self.element[0]);selectees.each(function(){var $this=$(this);var pos=$this.offset();$.data(this,"selectable-item",{element:this,$element:$this,left:pos.left,top:pos.top,right:pos.left+$this.width(),bottom:pos.top+$this.height(),startselected:false,selected:$this.hasClass('ui-selected'),selecting:$this.hasClass('ui-selecting'),unselecting:$this.hasClass('ui-unselecting')});});};this.refresh();this.selectees=selectees.addClass("ui-selectee");this.mouseInit();this.helper=$(document.createElement('div')).css({border:'1px dotted black'});},toggle:function(){if(this.options.disabled){this.enable();}else{this.disable();}},destroy:function(){this.element
.removeClass("ui-selectable ui-selectable-disabled")
.removeData("selectable")
.unbind(".selectable");this.mouseDestroy();},mouseStart:function(e){var self=this;this.opos=[e.pageX,e.pageY];if(this.options.disabled)
return;var options=this.options;this.selectees=$(options.filter,this.element[0]);this.element.triggerHandler("selectablestart",[e,{"selectable":this.element[0],"options":options}],options.start);$('body').append(this.helper);this.helper.css({"z-index":100,"position":"absolute","left":e.clientX,"top":e.clientY,"width":0,"height":0});if(options.autoRefresh){this.refresh();}
this.selectees.filter('.ui-selected').each(function(){var selectee=$.data(this,"selectable-item");selectee.startselected=true;if(!e.ctrlKey){selectee.$element.removeClass('ui-selected');selectee.selected=false;selectee.$element.addClass('ui-unselecting');selectee.unselecting=true;self.element.triggerHandler("selectableunselecting",[e,{selectable:self.element[0],unselecting:selectee.element,options:options}],options.unselecting);}});var isSelectee=false;$(e.target).parents().andSelf().each(function(){if($.data(this,"selectable-item"))isSelectee=true;});return this.options.keyboard?!isSelectee:true;},mouseDrag:function(e){var self=this;this.dragged=true;if(this.options.disabled)
return;var options=this.options;var x1=this.opos[0],y1=this.opos[1],x2=e.pageX,y2=e.pageY;if(x1>x2){var tmp=x2;x2=x1;x1=tmp;}
if(y1>y2){var tmp=y2;y2=y1;y1=tmp;}
this.helper.css({left:x1,top:y1,width:x2-x1,height:y2-y1});this.selectees.each(function(){var selectee=$.data(this,"selectable-item");if(!selectee||selectee.element==self.element[0])
return;var hit=false;if(options.tolerance=='touch'){hit=(!(selectee.left>x2||selectee.right<x1||selectee.top>y2||selectee.bottom<y1));}else if(options.tolerance=='fit'){hit=(selectee.left>x1&&selectee.right<x2&&selectee.top>y1&&selectee.bottom<y2);}
if(hit){if(selectee.selected){selectee.$element.removeClass('ui-selected');selectee.selected=false;}
if(selectee.unselecting){selectee.$element.removeClass('ui-unselecting');selectee.unselecting=false;}
if(!selectee.selecting){selectee.$element.addClass('ui-selecting');selectee.selecting=true;self.element.triggerHandler("selectableselecting",[e,{selectable:self.element[0],selecting:selectee.element,options:options}],options.selecting);}}else{if(selectee.selecting){if(e.ctrlKey&&selectee.startselected){selectee.$element.removeClass('ui-selecting');selectee.selecting=false;selectee.$element.addClass('ui-selected');selectee.selected=true;}else{selectee.$element.removeClass('ui-selecting');selectee.selecting=false;if(selectee.startselected){selectee.$element.addClass('ui-unselecting');selectee.unselecting=true;}
self.element.triggerHandler("selectableunselecting",[e,{selectable:self.element[0],unselecting:selectee.element,options:options}],options.unselecting);}}
if(selectee.selected){if(!e.ctrlKey&&!selectee.startselected){selectee.$element.removeClass('ui-selected');selectee.selected=false;selectee.$element.addClass('ui-unselecting');selectee.unselecting=true;self.element.triggerHandler("selectableunselecting",[e,{selectable:self.element[0],unselecting:selectee.element,options:options}],options.unselecting);}}}});return false;},mouseStop:function(e){var self=this;this.dragged=false;var options=this.options;$('.ui-unselecting',this.element[0]).each(function(){var selectee=$.data(this,"selectable-item");selectee.$element.removeClass('ui-unselecting');selectee.unselecting=false;selectee.startselected=false;self.element.triggerHandler("selectableunselected",[e,{selectable:self.element[0],unselected:selectee.element,options:options}],options.unselected);});$('.ui-selecting',this.element[0]).each(function(){var selectee=$.data(this,"selectable-item");selectee.$element.removeClass('ui-selecting').addClass('ui-selected');selectee.selecting=false;selectee.selected=true;selectee.startselected=true;self.element.triggerHandler("selectableselected",[e,{selectable:self.element[0],selected:selectee.element,options:options}],options.selected);});this.element.triggerHandler("selectablestop",[e,{selectable:self.element[0],options:this.options}],this.options.stop);this.helper.remove();return false;}}));$.extend($.ui.selectable,{defaults:{distance:0,delay:0,cancel:":input,button",appendTo:'body',autoRefresh:true,filter:'*',tolerance:'touch'}});})(jQuery);