(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+$this.outerWidth(),bottom:pos.top+$this.outerHeight(),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'})
.addClass("ui-selectable-helper");},destroy:function(){this.element
.removeClass("ui-selectable ui-selectable-disabled")
.removeData("selectable")
.unbind(".selectable");this._mouseDestroy();},_mouseStart:function(event){var self=this;this.opos=[event.pageX,event.pageY];if(this.options.disabled)
return;var options=this.options;this.selectees=$(options.filter,this.element[0]);this._trigger("start",event);$(options.appendTo).append(this.helper);this.helper.css({"z-index":100,"position":"absolute","left":event.clientX,"top":event.clientY,"width":0,"height":0});if(options.autoRefresh){this.refresh();}
this.selectees.filter('.ui-selected').each(function(){var selectee=$.data(this,"selectable-item");selectee.startselected=true;if(!event.metaKey){selectee.$element.removeClass('ui-selected');selectee.selected=false;selectee.$element.addClass('ui-unselecting');selectee.unselecting=true;self._trigger("unselecting",event,{unselecting:selectee.element});}});$(event.target).parents().andSelf().each(function(){var selectee=$.data(this,"selectable-item");if(selectee){selectee.$element.removeClass("ui-unselecting").addClass('ui-selecting');selectee.unselecting=false;selectee.selecting=true;selectee.selected=true;self._trigger("selecting",event,{selecting:selectee.element});return false;}});},_mouseDrag:function(event){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=event.pageX,y2=event.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._trigger("selecting",event,{selecting:selectee.element});}}else{if(selectee.selecting){if(event.metaKey&&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._trigger("unselecting",event,{unselecting:selectee.element});}}
if(selectee.selected){if(!event.metaKey&&!selectee.startselected){selectee.$element.removeClass('ui-selected');selectee.selected=false;selectee.$element.addClass('ui-unselecting');selectee.unselecting=true;self._trigger("unselecting",event,{unselecting:selectee.element});}}}});return false;},_mouseStop:function(event){var self=this;this.dragged=false;var options=this.options;$('.ui-unselecting',this.element[0]).each(function(){var selectee=$.data(this,"selectable-item");selectee.$element.removeClass('ui-unselecting');selectee.unselecting=false;selectee.startselected=false;self._trigger("unselected",event,{unselected:selectee.element});});$('.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._trigger("selected",event,{selected:selectee.element});});this._trigger("stop",event);this.helper.remove();return false;}}));$.extend($.ui.selectable,{version:"1.7.2",defaults:{appendTo:'body',autoRefresh:true,cancel:":input,option",delay:0,distance:0,filter:'*',tolerance:'touch'}});})(jQuery);