PHP _remove_theme_support函数代码示例

/**
 * Unregisters a navigation menu for a theme.
 *
 * @param array $location the menu location identifier
 *
 * @return bool True on success, false on failure.
 */
function unregister_nav_menu($location)
{
    global $_wp_registered_nav_menus;
    if (is_array($_wp_registered_nav_menus) && isset($_wp_registered_nav_menus[$location])) {
        unset($_wp_registered_nav_menus[$location]);
        if (empty($_wp_registered_nav_menus)) {
            _remove_theme_support('menus');
        }
        return true;
    }
    return false;
}

 /**
  * Sets up theme defaults and registers support for various WordPress features.
  *
  * Note that this function is hooked into the after_setup_theme hook, which
  * runs before the init hook. The init hook is too late for some features, such
  * as indicating support for post thumbnails.
  */
 public function afterSetupTheme()
 {
     /*
      * Load language for text domain from /lang dir
      */
     load_theme_textdomain('DIRESS_DOMAIN', TEMPLATE_DIR . '/lang');
     // Add default posts and comments RSS feed links to head.
     add_theme_support('automatic-feed-links');
     /*
      * Let WordPress manage the document title.
      * By adding theme support, we declare that this theme does not use a
      * hard-coded <title> tag in the document head, and expect WordPress to
      * provide it for us.
      */
     add_theme_support('title-tag');
     /*
      * Enable support for Post Thumbnails on posts and pages.
      *
      * @link https://developer.wordpress.org/themes/functionality/featured-images-post-thumbnails/
      */
     add_theme_support('post-thumbnails');
     _remove_theme_support('menus');
 }

/**
 * Allows a theme to de-register its support of a certain feature
 *
 * Should be called in the theme's functions.php file. Generally would
 * be used for child themes to override support from the parent theme.
 *
 * @since 3.0.0
 * @see add_theme_support()
 * @param string $feature the feature being added
 * @return bool Whether feature was removed.
 */
function remove_theme_support($feature)
{
    // Blacklist: for internal registrations not used directly by themes.
    if (in_array($feature, array('editor-style', 'widgets', 'menus'))) {
        return false;
    }
    return _remove_theme_support($feature);
}

 /**
  * @ticket 26900
  */
 function test_supports_menus()
 {
     // Start fresh
     foreach (get_registered_nav_menus() as $location => $desc) {
         unregister_nav_menu($location);
     }
     _remove_theme_support('menus');
     $this->assertFalse(current_theme_supports('menus'));
     // Registering a nav menu automatically adds support.
     register_nav_menu('primary', 'Primary Navigation');
     register_nav_menu('secondary', 'Secondary Navigation');
     $this->assertTrue(current_theme_supports('menus'));
     // Support added internally, can't be removed.
     remove_theme_support('menus');
     $this->assertTrue(current_theme_supports('menus'));
     // Still supports because of secondary.
     unregister_nav_menu('primary');
     $this->assertTrue(current_theme_supports('menus'));
     // No longer support because we have no menus.
     unregister_nav_menu('secondary');
     $this->assertEmpty(get_registered_nav_menus());
     $this->assertFalse(current_theme_supports('menus'));
 }