iframe框架页增加onclick事件的监听方法

在页面中增加事件的监听很容易，但对于框架页中增加onclick就没有任何动作反应了，也是经过百度查询找到了解决办法。具体代码分享如下：

HTML页面中的iframe框架：

<iframe src="https://www.xgboke.com/xxx.html" id="Frame_chajian" name="Frame_chajian" frameborder="0" scrolling="no" ></iframe>

JS代码：

<script>
    //框架iframe事件监听
    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(new this.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 i in this.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;  
                    }  
                }  
            }  
        }  
    };  
     
    IframeOnClick.track(document.getElementById("Frame_chajian"), function() { xgboke() }); //xgboke()为要执行的事件
    </script>