stastics.js

/**
* 统计埋点代码
* @author 丘迟 <jyyjcc@gmail.com>
*/
(function(S, win, doc, undefined) {
    var E = S.Event;

    //默认的前缀
    //可以通过在后面的脚本修改全局变量来动态修改
    win.STAT_PREFIX = 'http://www.atpanel.com/search?';

    function send(stat, noTimstamp) {
        var t = +new Date(), i = win[t] = new Image();
        i.onload = i.onerror = function(){ win[t]=null; };
        i.src = (/^http/.test(stat) ? stat : win.STAT_PREFIX + stat) + (noTimstamp ? '' : ('&t=' + t));
        i = null;
    }

    function trace(target) {
        var stat, c = 0;
        //向上回溯至多四个层级即可
        while (!stat && target && target.getAttribute && c < 4) {
            c++;
            stat = target.getAttribute('stat') || target.getAttribute('data-stat');
            target = target.parentNode;
        }
        if (stat) send(stat);
    }

    E.on(doc, 'click', function(e) {
        trace(e.target);
    });

    //IE7以上支持(鼠标中键)或者(Ctr+单击)在后台标签页打开链接
    //但这种情况并不会触发click事件
    //需要特殊处理(如果以后IE10解决了这个bug，需要修改此处代码)
    if (S.UA.ie > 6) {
        E.on(doc, 'keyup mouseup', function(e) {
            var which = e.which;
            if (which == 2 || (e.ctrlKey && which == 1)) trace(e.target);
        });
    }

    //PV埋点
    if (win.STAT_PV) {
        send(win.STAT_PV, true);
    }

    //提供发送埋点请求的公用方法
    //考虑通用性，并不放在Search下
    S.StatSend = send;
})(KISSY, window, document);