Method getButtons

/**
 * Get the editor extended buttons (usually from plugins)
 *
 * @param   string  $editor   The name of the editor.
 * @param   mixed   $buttons  Can be boolean or array, if boolean defines if the buttons are
 *                            displayed, if array defines a list of buttons not to show.
 *
 * @return  array
 *
 * @since   1.5
 */
public function getButtons($editor, $buttons = true)
{
    $result = array();
    if (\is_bool($buttons) && !$buttons) {
        return $result;
    }
    // Get plugins
    $plugins = PluginHelper::getPlugin('editors-xtd');
    foreach ($plugins as $plugin) {
        if (\is_array($buttons) && \in_array($plugin->name, $buttons)) {
            continue;
        }
        PluginHelper::importPlugin('editors-xtd', $plugin->name, false);
        $className = 'PlgEditorsXtd' . $plugin->name;
        if (!class_exists($className)) {
            $className = 'PlgButton' . $plugin->name;
        }
        if (class_exists($className)) {
            $dispatcher = $this->getDispatcher();
            $plugin = new $className($dispatcher, (array) $plugin);
        }
        // Try to authenticate
        if (!method_exists($plugin, 'onDisplay')) {
            continue;
        }
        $button = $plugin->onDisplay($editor, $this->asset, $this->author);
        if (empty($button)) {
            continue;
        }
        if (\is_array($button)) {
            $result = array_merge($result, $button);
            continue;
        }
        $result[] = $button;
    }
    return $result;
}