/**
* Main Instance.
*
* Ensures only one instance of this class is loaded or can be loaded.
*
* @since 1.6
* @access public
* @static
* @param object|bool $caller The referrer class
* @return VAA_View_Admin_As_View|bool
*/
public static function get_instance($caller = false)
{
if (is_object($caller) && 'VAA_View_Admin_As' == get_class($caller)) {
if (is_null(self::$_instance)) {
self::$_instance = new self();
}
return self::$_instance;
}
return false;
}
/**
* Init function to register plugin hook
* Private to make sure it isn't declared elsewhere
*
* @since 0.1
* @since 1.3.3 changes init hook to plugins_loaded for theme compatibility
* @since 1.4.1 creates instance
* @since 1.5 make private
* @since 1.5.1 added notice on class name conflict + validate versions
* @access private
*/
private function __construct()
{
self::$_instance = $this;
add_action('init', array($this, 'load_textdomain'));
add_action('admin_notices', array($this, 'do_admin_notices'));
// Returns true on conflict
if ((bool) $this->validate_versions()) {
return;
}
if ((bool) $this->load()) {
$this->store = VAA_View_Admin_As_Store::get_instance($this);
$this->view = VAA_View_Admin_As_View::get_instance($this);
// Lets start!
add_action('plugins_loaded', array($this, 'init'), 0);
} else {
$this->add_notice('class-error-base', array('type' => 'notice-error', 'message' => '<strong>' . __('View Admin As', 'view-admin-as') . ':</strong> ' . __('Plugin not loaded because of a conflict with an other plugin or theme', 'view-admin-as') . ' <code>(' . sprintf(__('Class %s already exists', 'view-admin-as'), 'VAA_View_Admin_As_Class_Base') . ')</code>'));
}
}