mac_os.html

<div class="block">
<article><h1>Install Packages</h1>
<p>Select the package you wish to install by clicking on it. You will then be directed to our primary download server and after a few moments your download should begin automatically. Once downloaded, run the install package and follow the onsreen instructions to complete the install.</p>
<div id="downloads_list1" class="downloads_list"></div>
<div id="downloads_list2" class="downloads_list"></div>
</article>
<article><h1>Minimum System Requirements</h1>
<ul>
<li>Mac OS X version 10.6 (or later).</li>
<li>Original game data files for each supported game that you wish to play (e.g., in the case of <strong>DOOM</strong> the only file needed is <em>doom.wad</em>).</li>
<li>Some <a href="/addons" title="Doomsday add-ons">add-ons</a> may require a large amount of disk space (especially high quality texture and music packs).</li>
</ul></article>
</div>

<script type="text/javascript">

var packages = new Array();

/// @return  @c true if @a object is a string.
function is_string(object)
{
    return typeof(object) == 'string';
}

/**
 * Remove all DOM child elements of @a elementId.
 */
function removeAllChildren(elementId)
{
    if(!is_string(elementId))
        elementId = elementId.toString();

    var element = document.getElementById(elementId);
    if(element && element.hasChildNodes())
    {
        while(element.childNodes.length)
        {
            element.removeChild(element.firstChild);
        }
    }
}

/**
 * Generate a fancy HTML badge for this package.
 */
function genPackageBadgeHTML(json, downloadUri)
{
    // Compose badge title.
    var cleanTitle = json.title + ' ' + json.version;

    // Generate metadata HMTL.
    var metaData = '<span class="metalink">';
    if(json.hasOwnProperty('is_unstable'))
    {
        var isUnstable = json.is_unstable;
        var buildId = '';

        if(json.hasOwnProperty('build_uniqueid'))
        {
            buildId += ' build' + json.build_uniqueid;
        }

        if(isUnstable)
        {
            cleanTitle += ' (Unstable)';
        }
    }

    if(json.hasOwnProperty('release_date'))
    {
        var releaseDate = new Date(Date.parse(json.release_date));
        var shortDate = (releaseDate.getDate()) + '/' + (1 + releaseDate.getMonth()) + '/' + releaseDate.getFullYear();
        metaData += '<span title="Release Date">' + shortDate + '</span> &middot; ';
    }

    if(json.platform_name == 'mac10_8-x86_64')
    {
        metaData += 'OS X 10.8+';
    }
    else if(json.platform_name == 'mac10_6-x86-x86_64')
    {
        metaData += 'OS X 10.6+';
    }
    else
    {
        metaData += 'OS X 10.4+';
    }
    metaData += '</span>';

    return $('<div class="package_badge"><a class="package_name" href="' + downloadUri + '" title="Download ' + json.fulltitle + '">' + cleanTitle + '</a><br />' + metaData + '</div>');
}

/**
 * Called upon receipt of a new JSON package object graph to add it
 * to the global list of packages.
 */
function addPackages(json, downloadUri, packageListElementId)
{
    var record = new Array();
    var json_copy = json;
    record['json'] = json_copy;
    record['downloadUri'] = downloadUri;
    record['packageListElementId'] = packageListElementId;
    packages.push(record);
}

/**
 * Sort comparator for JSON graph data.
 */
function recordSorter(recordA, recordB)
{
    var a = recordA['json'];
    var a_is_unstable = a.hasOwnProperty('is_unstable');
    var b = recordB['json'];
    var b_is_unstable = b.hasOwnProperty('is_unstable');

    // Order stable packages first.
    if(a_is_unstable != b_is_unstable)
    {
        return a_is_unstable? 1 : -1;
    }

    // Platform ids are arranged such that latest appears first.
    if(a.platform_id != b.platform_id)
    {
        return a.platform_id > b.platform_id? -1 : 1;
    }

    // Use the lexicographical difference between titles.
    return a.title - b.title;
}

/**
 * Update the identified DOM element attaching new HTML for each package.
 */
function populatePackages()
{
    // Order packages
    packages.sort(recordSorter);

    // Update the named DOM element attaching new HTML for each package.
    for(var i in packages)
    {
        var record = packages[i];
        var json = record['json'];
        if(json.title === undefined) continue;        
        genPackageBadgeHTML(json, record['downloadUri']).appendTo(record['packageListElementId']);
    }
}

/**
 * Query the latest packages, generate HTML badges and append
 * them to the specified DOM object.
 */
function updateLatestPackages(requests)
{
    // Clear the packages staging area.
    packages = [];

    // Fire the requests and compose the deferreds collection.
    var allDeferred = new Array();
    for(var i in requests)
    {
        var task = requests[i];

        // Request!
        var deferred = $.ajax({
            url: task['request'],
            data: task['data'],
            context: {
                downloadUri: task['downloadUri'],
                packageListElementId: task['packageListElementId']
            },
            success: function(json){
                addPackages(json, this.downloadUri, this.packageListElementId);
            }
        });

        // Add this Deferred to the collection.
        allDeferred.push(deferred);
    }

    // When all requests complete populate the package list.
    $.when.apply(null, allDeferred).then(function()
    {
        populatePackages();
    });
}

// Construct the request queue.
requests = new Array();

// Latest stable packages.
task = new Array();
task['request'] = 'latestbuild?';
task['data'] = {
    graph: 'json',
    platform: 'mac10_8-x86_64'
};
task['downloadUri'] = 'latestbuild?' + 'platform=mac10_8-x86_64';
task['packageListElementId'] = '#downloads_list1';
requests.push(task);

task = new Array();
task['request'] = 'latestbuild?';
task['data'] = {
    graph: 'json',
    platform: 'mac10_6-x86-x86_64'
};
task['downloadUri'] = 'latestbuild?' + 'platform=mac10_6-x86-x86_64';
task['packageListElementId'] = '#downloads_list1';
requests.push(task);

/* No longer supported?
task = new Array();
task['request'] = 'latestbuild?';
task['data'] = {
    graph: 'json',
    platform: 'mac10_4-x86-ppc'
};
task['downloadUri'] = 'latestbuild?' + 'platform=mac10_4-x86-ppc';
task['packageListElementId'] = '#downloads_list1';
requests.push(task);*/

// Latest unstable packages.
task = new Array();
task['request'] = 'latestbuild?';
task['data'] = {
    graph: 'json',
    platform: 'mac10_8-x86_64',
    unstable: 'yes'
};
task['downloadUri'] = 'latestbuild?' + 'platform=mac10_8-x86_64' + '&unstable';
task['packageListElementId'] = '#downloads_list2';
requests.push(task);

task = new Array();
task['request'] = 'latestbuild?';
task['data'] = {
    graph: 'json',
    platform: 'mac10_6-x86-x86_64',
    unstable: 'yes'
};
task['downloadUri'] = 'latestbuild?' + 'platform=mac10_6-x86-x86_64' + '&unstable';
task['packageListElementId'] = '#downloads_list2';
requests.push(task);

/* No longer supported?
task = new Array();
task['request'] = 'latestbuild?';
task['data'] = {
    graph: 'json',
    platform: 'mac10_4-x86-ppc',
    unstable: 'yes'
};
task['downloadUri'] = 'latestbuild?' + 'platform=mac10_4-x86-ppc' + '&unstable';
task['packageListElementId'] = '#downloads_list2';
requests.push(task);*/

removeAllChildren('#downloads_list1');
removeAllChildren('#downloads_list2');
updateLatestPackages(requests);
</script>