public static function getInstance()
{
if (!isset(self::$libraryInstance)) {
self::$libraryInstance = new OpenGraphLibrary();
}
return self::$libraryInstance;
}
function __construct(&$subject, $config)
{
$this->pluginName = $config['name'];
$this->extensionName = $config['name'];
// Should be overridden by the plugin itself.
if (class_exists('JFBConnectFacebookLibrary')) {
JModelLegacy::addIncludePath(JPATH_SITE . '/components/com_jfbconnect/models');
$this->jfbcOgActionModel = JModelLegacy::getInstance('OpenGraphAction', 'JFBConnectModel');
$this->jfbcOgObjectModel = JModelLegacy::getInstance('OpenGraphObject', 'JFBConnectModel');
$this->jfbcLibrary = JFBCFactory::provider('facebook');
}
if (class_exists('OpenGraphLibrary')) {
$this->openGraphLibrary = OpenGraphLibrary::getInstance();
}
$this->hasDefaultTags = false;
$this->db = JFactory::getDBO();
parent::__construct($subject, $config);
$this->init();
}
public function html()
{
$openGraphLibrary = OpenGraphLibrary::getInstance();
$ogGroups = array("Inserted", "Skipped", "Removed");
$html = '
<div id="social-meta" style="position:fixed; bottom:45px; display:none;">';
foreach ($ogGroups as $group) {
$groupName = 'tags' . $group;
$tags = $this->getOGTagList("Inserted", $openGraphLibrary->{$groupName}, true);
$html .= <<<EOT
<h3>{$group}</h3>
<div>
<p>
{$tags}
</p>
</div>
EOT;
}
$html .= "</div>";
return $html;
}
private function replaceGraphTags()
{
$placeholder = '<SCOpenGraphPlaceholder />';
$regex1 = '/\\{SCOpenGraph\\s+(.*?)\\}/i';
$regex2 = '/\\{JFBCGraph\\s+(.*?)\\}/i';
$newGraphTags1 = array();
$newGraphTags2 = array();
$contents = JResponse::getBody();
$this->getGraphContents($regex1, $contents, $newGraphTags1);
$this->getGraphContents($regex2, $contents, $newGraphTags2);
$newGraphTags = array_merge($newGraphTags1, $newGraphTags2);
//Replace Placeholder with new Head tags
$defaultGraphFields = JFBCFactory::config()->getSetting('social_graph_fields');
$skipGraphFields = JFBCFactory::config()->getSetting('social_graph_skip_fields');
$locale = JFBCFactory::provider('facebook')->getLocale();
$openGraphLibrary = OpenGraphLibrary::getInstance();
$openGraphLibrary->addBlockedTags($skipGraphFields);
$openGraphLibrary->addOpenGraphEasyTags($newGraphTags);
$openGraphLibrary->addDefaultSettingsTags($defaultGraphFields);
$openGraphLibrary->addAutoGeneratedTags($locale);
$graphTags = $openGraphLibrary->buildCompleteOpenGraphList();
$contents = $openGraphLibrary->removeOverlappingTags($contents);
$search = '/' . preg_quote($placeholder, '/') . '/';
$graphTags = str_replace('$', '\\$', $graphTags);
$contents = preg_replace($search, $graphTags, $contents, 1);
$contents = str_replace($placeholder, '', $contents);
//If JLinked attempts to insert, ignore
JResponse::setBody($contents);
}
