eventhandler.js

来自「Vista日历的Calendar控件Vista日历的Calendar控件.rar」· JavaScript 代码 · 共 32 行

function EventHandler()
{
	var functions=new Array();
	var run=function (){
		var ret;
		for(var i=0;i<functions.length;i++){
			if(functions[i].apply(this,arguments)===false)
				ret=false;
		}
		return ret;
	}
	run["+="]=function(newFunction){
		if(newFunction instanceof Function)
		{
			for(var i=0;i<functions.length;i++){
				if(functions[i]==newFunction)return;
			}
			functions.push(newFunction);
		}
	}
	run["-="]=function(theFunction){
		for(var i=0;i<functions.length;i++){
			if(functions[i]==theFunction)functions.splice(i,1);
		}
	}
	run.view=function(){
		var tmp=function(){};
		tmp.prototype=functions;
		return Array.prototype.slice.apply(new tmp);
	}
	return run;
}