首先 ，建立一個(gè)iframe對(duì)象，形成原型
var?IframeOnClick?=?{
resolution:?200,
iframes:? [ ],
interval:null,
Iframe:function()?{
? ? ? ? ?this.element?=?arguments[0];
? ? ? ? ?this.cb?=?arguments[1];
? ? ? ? ?this.hasTracked?=false;
},
track:function(element,?cb)?{
? ? ? ? ? this.iframes.push(newthis.Iframe(element,?cb));
? ? ? ? ?if?(!this.interval)?{
var?_this?=this;
this.interval?=?setInterval(function()?{?_this.checkClick();?},this.resolution);
}
},
checkClick:function()?{
if?(document.activeElement)?{
var?activeElement?=?document.activeElement;
for?(var?iinthis.iframes)?{
if?(activeElement?===this.iframes[i].element)?{//?user?is?in?this?Iframe
if?(this.iframes[i].hasTracked?==false)?{
this.iframes[i].cb.apply(window,?[]);
this.iframes[i].hasTracked?=true;
}
}else?{
this.iframes[i].hasTracked?=false;
}
}
}
}
};
最后直接調(diào)用
IframeOnClick.track(document.getElementById("iFrame"),function()?{?alert('a?click');?});
