aakeylib.js

// ==UserScript==
// @include    http://prohardver.hu/*
// @include    http://mobilarena.hu/*
// @include    http://itcafe.hu/*
// @include    http://logout.hu/*
// @include    http://gamepod.hu/*
// @include    http://hardverapro.hu/*
// @version    1.1
// ==/UserScript==

function keylib_initialize(obj, hotkeys)
{
    obj.hotkey = null;
    if (obj == null)
        return;

    var onhotkeycancel = function (e)
    {
        e.returnValue = false;
        if (e.stopPropagation)
            e.stopPropagation();
        if (e.preventDefault)
            e.preventDefault();
        return false;
    };

    var onhotkeypress = function (e)
    {
        if (obj.hotkey == null)
            return true;

        var hotkey = obj.hotkey;
        if (typeof(hotkey) == "function")
            hotkey(e);
        else if (typeof(hotkey) == "string" && typeof(obj) == "object" && obj.tagName == "TEXTAREA")
            obj.value = obj.value.substr(0, obj.selectionStart) + hotkey + obj.value.substr(obj.selectionEnd);
        else if (typeof(hotkey) == "object" && (hotkey.tagName == "INPUT" || hotkey.tagName == "A"))// && window.opera == null)
            hotkey.click();

        return onhotkeycancel(e);
    }

    var onhotkeydown = function (e)
    {
        var code = e.keyCode ? e.keyCode : e.which;
        if (code == null)
            return true;

        var named_keys =
        {
            8: "backspace", 9: "tab", 13: "enter", 32: "space", 27: "esc",
            33: "pageup", 34: "pagedown", 35: "end", 36: "home",
            37: "left", 38: "up", 39 : "right", 40: "down",
            45: "insert", 46: "delete",
            112: "f1", 113 : "f2", 114 : "f3", 115 : "f4", 116 : "f5", 117 : "f6",
            118: "f7", 119 : "f8", 120 : "f9", 121 : "f10", 122 : "f11", 123 : "f12"
        };

        var key =
            (e.ctrlKey ? "ctrl-" : "") + (e.altKey ? "alt-" : "") + (e.shiftKey ? "shift-" : "");
        if ((code >= 65 && code <= 90) || (code >= 48 && code <= 57))
            key += String.fromCharCode(code).toLowerCase();
        else if (named_keys[code] == null)
            return true;
        else
            key += named_keys[code];

        obj.hotkey = hotkeys[key];
        if (obj.hotkey == null)
            return true;

        return onhotkeypress(e);
    };

    var onhotkeyup = function (e)
    {
        if (obj.hotkey == null)
            return true;

        obj.hotkey = null;
        return onhotkeycancel(e);
    }

    obj.addEventListener("keydown", onhotkeydown, false);
    obj.addEventListener("keyup", onhotkeyup, false);
}