Jandan Copy

强力解除煎蛋复制限制
Ekde 2015/11/29. Vidu La ĝisdata versio.
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// ==UserScript==
// @name        Jandan Copy
// @namespace   -
// @description 强力解除煎蛋复制限制
// @include     http://jandan.net/*
// @version     0.2
// @rut-at      document-start
// @copyright   mistree
// @grant       none
// ==/UserScript==

EventTarget.prototype.addEventListenerBase = EventTarget.prototype.addEventListener;
EventTarget.prototype.addEventListener = function(type, listener)
{
    if(type=="copy") return;
    if(!this.EventList) { this.EventList = []; }
    this.addEventListenerBase.apply(this, arguments);
    if(!this.EventList[type]) { this.EventList[type] = []; }
    var list = this.EventList[type];
    for(var index = 0; index != list.length; index++)
    {
        if(list[index] === listener) { return; }
    }
    list.push(listener);
};

EventTarget.prototype.removeEventListenerBase = EventTarget.prototype.removeEventListener;
EventTarget.prototype.removeEventListener = function(type, listener)
{
    if(!this.EventList) { this.EventList = []; }
    if(listener instanceof Function) { this.removeEventListenerBase.apply(this, arguments); }
    if(!this.EventList[type]) { return; }
    var list = this.EventList[type];
    for(var index = 0; index != list.length;)
    {
        var item = list[index];
        if(!listener)
        {
            this.removeEventListenerBase(type, item);
            list.splice(index, 1); continue;
        }
        else if(item === listener)
        {
            list.splice(index, 1); break;
        }
        index++;
    }
    if(list.length == 0) { delete this.EventList[type]; }
};

window.addEventListener("load", function()
{
    document.removeEventListener("copy");
});