/**
* Initialize the plugin by loading admin scripts & styles and adding a
* settings page and menu.
*
* @since 1.0.0
*/
private function __construct()
{
// Set version & plugin slug from main class.
$this->plugin_version = Pinterest_Widgets::get_plugin_version();
$this->plugin_slug = Pinterest_Widgets::get_plugin_slug();
$old = get_option('pw_version');
if (version_compare($old, $this->plugin_version, '<')) {
delete_option('pw_upgrade_has_run');
}
if (false === get_option('pw_upgrade_has_run')) {
$this->upgrade();
}
update_option('pw_version', $this->plugin_version);
$this->setup_constants();
// Load the plugin text domain for translations
$this->plugin_textdomain();
// Load admin style sheets.
add_action('admin_enqueue_scripts', array($this, 'enqueue_admin_styles'));
// Add the options page and menu item.
add_action('admin_menu', array($this, 'add_plugin_admin_menu'));
// Make sure we load our include files
$this->includes();
// Check WP version
add_action('admin_init', array($this, 'check_wp_version'));
// Add plugin listing "Settings" action link.
add_filter('plugin_action_links_' . plugin_basename(plugin_dir_path(PW_MAIN_FILE) . $this->plugin_slug . '.php'), array($this, 'settings_link'));
// Add admin notice after plugin activation. Also check if should be hidden.
add_action('admin_notices', array($this, 'admin_install_notice'));
}
/**
* Main GCE Upgrade function. Call this and branch of from here depending on what we need to do
*
* @since 2.0.0
*/
function pw_upgrade()
{
$existing_version = get_option('pw_version');
// Check if under version 2 and run the v2 upgrade if we are
if (version_compare($existing_version, '1.0.6', '<') && false === get_option('pw_upgrade_has_run')) {
pw_106_upgrade();
}
update_option('pw_version', Pinterest_Widgets::get_plugin_version());
add_option('pw_upgrade_has_run', 1);
}
/**
* Return an instance of this class.
*
* @since 1.0.0
*
* @return object A single instance of this class.
*/
public static function get_instance()
{
// If the single instance hasn't been set, set it now.
if (null == self::$instance) {
self::$instance = new self();
}
return self::$instance;
}
