iframeMapAccessor

iframeMap

(function(win,DP){
  // 适配mootools与neuron框架创建元素方法
  function create(tag){
		if(DP.DOM){
			return DP.DOM.create(tag).el(0) 
		}else{
			return new Element(tag);
		}
	}

	function Map(elem,options,callback){
		this.iframe = null;
		this.$iframe = null;
		this.loaded = false;
		this.realMapInstance = null;
		this.funcQueue = [];
		this.loadIframe();
		this.init(elem,options.pois,options,callback);
	}

	Map.prototype.runAfterLoaded = function(func){
		if(this.loaded){
			func.apply(this,arguments);
		}else{
			this.funcQueue.push(function(){
				func.apply(this,arguments);
			});
		}
	}
	Map.prototype.loadIframe = function(){
		var self = this,
			funcQueue = self.funcQueue;

		self.iframe = create("iframe");
		self.$iframe = $(self.iframe);
		self.$iframe.css("border","none");

		self.iframe.onload = function(){
			var func;
			self.loaded = true;
			while(funcQueue.length){
				funcQueue.shift()();
			}
		}

		self.iframe.src="iframe.html";
	}
	Map.prototype.init = function(elem,pois,options,callback){
		var self = this,
			iframe = self.iframe,
			$iframe = self.$iframe,
			size = {
				"width":options.css && options.css.width,
				"height":options.css && options.css.height
			};

		self.$iframe.inject(elem);
		self.$iframe.css(size);
		elem.css(size);
		
		self.runAfterLoaded(function(){
			var mapcontainer = iframe.contentWindow.document.getElementById("map");
			realMapInstance = iframe.contentWindow.init(mapcontainer,pois,options);

			["DPMap","DPMarker","DPLatLng","DPIcon","DPEvent","DPLabel"].forEach(function(key){
				win[key] = iframe.contentWindow[key];
			});

			callback(realMapInstance,mapcontainer);
		});
	}

	win.Map = Map;
})(window,DP)