Difference between revisions of "User script"

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(reverted. Somebody had replaced this page with a userscript)
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// ==UserScript==
{{stub}}
// @name          FFS Autobuy version 20091117
// @namespace      http://nguyducthuan.com
// @include        http://apps.facebook.com/friendsforsale/users/show/*
// @require        http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js
// @reference   http://userscripts.org/scripts/show/24984
// @implementation Nguy Duc Thuan
// ==/UserScript==
/*
This script is published under the MS-PL license which can be found on the following link:
http://www.opensource.org/licenses/ms-pl.html
In short: The software is licensed "as-is." You bear the risk of using it. The contributors give no express warranties, guarantees or conditions.
*/
var _delay = 5000;
var MAXVALUE = 1000000000;
var FFS =
{
    performClick: function(node)
    {
        var evt = document.createEvent("MouseEvents");
        evt.initEvent("click", true, false);
        node.dispatchEvent(evt);
    },
    work: function()
    {
        var buyFor = FFS.findBuyFor();
        if (buyFor == null)
        {
            setTimeout(FFS.doReload, _delay);
            return;
        }
        if (!FFS.checkValue())
        {
            alert('Pre-specified max value reaches');
            return;
        }
        FFS.performClick(buyFor);
        setTimeout(FFS.confirmPurchase, _delay);
    },
    checkValue: function()
    {
        var valueElement = $(".action_container > .actions > .buy > .sliding_window_left > .sliding_window_right > .sliding_window_bottom > .sliding_window_corner > a > span > strong")[0];
        var value = valueElement.firstChild.textContent.replace(/[\$,\.]/g, '');
        value = parseInt(value, 10);
        if (value >= MAXVALUE)
            return false;
        return true;
    },
    confirmPurchase: function()
    {
        var func = $(".sliding_window_left > .sliding_window_right > .sliding_window_bottom > .sliding_window_corner > a");
        if (func.length == 0)
            return;
        FFS.performClick(func[1]);  // there are two such <a> tags. The second one is what we need
        setTimeout(FFS.doReload, _delay);
    },
    doReload: function()
    {
        document.location.reload();
    },
    findBuyFor: function()
    {
        var x = $(".action_container > .actions > .buy > .sliding_window_left > .sliding_window_right > .sliding_window_bottom > .sliding_window_corner > a"); //.buy
        if (x.length == 0)
            return null;
        return x[0];
    }
}


setTimeout(FFS.work, _delay);
'''User scripts''', or '''userscripts''', are scripts that make on-the-fly changes to specific web pages on the client side (in the browser or a proxy server), typically to change their appearance or to add or modify functionality.
 
User scripts for [[Greasemonkey]] and Greasemonkey-compatible alternatives are written in [http://developer.mozilla.org/en/docs/JavaScript JavaScript], but there is at least one example of using another scripting language, namely Ruby in [http://github.com/why/mousehole/tree/master/ MouseHole].
 
For tools other than Greasemonkey that apply user scripts to web sites, see [[Cross-browser_userscripting|Cross-browser Userscripting]] and [http://en.wikipedia.org/wiki/Greasemonkey#Compatibility Wikipedia].

Revision as of 17:16, 16 March 2010


User scripts, or userscripts, are scripts that make on-the-fly changes to specific web pages on the client side (in the browser or a proxy server), typically to change their appearance or to add or modify functionality.

User scripts for Greasemonkey and Greasemonkey-compatible alternatives are written in JavaScript, but there is at least one example of using another scripting language, namely Ruby in MouseHole.

For tools other than Greasemonkey that apply user scripts to web sites, see Cross-browser Userscripting and Wikipedia.