Mark owned ScummVM Games

A simple aid for collecting ScummVM-supported games
Versão de: 28/11/2015. Veja: a última versão.
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// ==UserScript==
// @name        Mark owned ScummVM Games
// @namespace   ssokolow.com
// @description A simple aid for collecting ScummVM-supported games
// @license MIT
// @match       *://www.scummvm.org/compatibility/*
// @version     2
// @require     https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js
// @grant       GM_setValue
// @grant       GM_deleteValue
// @grant       GM_listValues
// ==/UserScript==

const OWNED_OPACITY = 0.3;
var owned_games = GM_listValues();

var toggleOwnership = function(e) {
    e.preventDefault();

    var $this = $(this);
    var game_id = $this.data('game_id');

    // Toggle based on what's displayed so that it will always act as the
    // user expects, regardless of changes since last reload
    if ($this.text() == '+') {
        $this.text('-');
        $this.closest('a').css('opacity', OWNED_OPACITY);
        GM_setValue(game_id, true);
    } else {
        $this.text('+');
        $this.closest('a').css('opacity', 1.0);
        GM_deleteValue(game_id);
    }
};

$('.content a').each(function() {
    var $this = $(this);

    // Extract the game ID for use in record-keeping
    var url = $(this).attr('href').split('/');
    var game_id = url[url.length-1] ? url[url.length-1] : url[url.length-2];

    // Craft a button to toggle ownership status
    var togglebutton = $('<span>', {title: "Toggle Owned"})
        .text(owned_games.indexOf(game_id) == -1 ? '+' : '-')
        .css({
            border: '1px solid black',
            borderRadius: 2,
            color: 'black',
            display: 'inline-block',
            fontWeight: 'bold',
            marginRight: 5,
            visibility: 'hidden',
            paddingLeft: 2,
            paddingRight: 2,
            textAlign: 'center',
            width: '1em',
        }).data('game_id', game_id)
        .click(toggleOwnership)
        .prependTo($this);

    // On-hover display in a manner which won't reposition the game title
    $this.hover(function() { togglebutton.css('visibility', 'visible'); },
                function() { togglebutton.css('visibility', 'hidden'); });

    // TODO: Profile alternatives like an x|y|z regexp or a popping iteration
    if (owned_games.indexOf(game_id) !== -1){
        $this.css('opacity', OWNED_OPACITY);
    }
});
// http://www.scummvm.org/compatibility/1.7.0/drascula/