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   1  <?php
   2  /**
   3   * The block-based widgets editor, for use in widgets.php.
   4   *
   5   * @package WordPress
   6   * @subpackage Administration
   7   */
   8  
   9  // Don't load directly.
  10  if ( ! defined( 'ABSPATH' ) ) {
  11      die( '-1' );
  12  }
  13  
  14  // Flag that we're loading the block editor.
  15  $current_screen = get_current_screen();
  16  $current_screen->is_block_editor( true );
  17  
  18  $block_editor_context = new WP_Block_Editor_Context( array( 'name' => 'core/edit-widgets' ) );
  19  
  20  $preload_paths = array(
  21      array( rest_get_route_for_post_type_items( 'attachment' ), 'OPTIONS' ),
  22      '/wp/v2/widget-types?context=edit&per_page=-1',
  23      '/wp/v2/sidebars?context=edit&per_page=-1',
  24      '/wp/v2/widgets?context=edit&per_page=-1&_embed=about',
  25  );
  26  block_editor_rest_api_preload( $preload_paths, $block_editor_context );
  27  
  28  $editor_settings = get_block_editor_settings(
  29      array_merge( get_legacy_widget_block_editor_settings(), array( 'styles' => get_block_editor_theme_styles() ) ),
  30      $block_editor_context
  31  );
  32  
  33  // The widgets editor does not support the Block Directory, so don't load any of
  34  // its assets. This also prevents 'wp-editor' from being enqueued which we
  35  // cannot load in the widgets screen because many widget scripts rely on `wp.editor`.
  36  remove_action( 'enqueue_block_editor_assets', 'wp_enqueue_editor_block_directory_assets' );
  37  
  38  wp_add_inline_script(
  39      'wp-edit-widgets',
  40      sprintf(
  41          'wp.domReady( function() {
  42              wp.editWidgets.initialize( "widgets-editor", %s );
  43          } );',
  44          wp_json_encode( $editor_settings )
  45      )
  46  );
  47  
  48  // Preload server-registered block schemas.
  49  wp_add_inline_script(
  50      'wp-blocks',
  51      'wp.blocks.unstable__bootstrapServerSideBlockDefinitions(' . wp_json_encode( get_block_editor_server_block_settings() ) . ');'
  52  );
  53  
  54  wp_add_inline_script(
  55      'wp-blocks',
  56      sprintf( 'wp.blocks.setCategories( %s );', wp_json_encode( get_block_categories( $block_editor_context ) ) ),
  57      'after'
  58  );
  59  
  60  wp_enqueue_script( 'wp-edit-widgets' );
  61  wp_enqueue_script( 'admin-widgets' );
  62  wp_enqueue_style( 'wp-edit-widgets' );
  63  
  64  /** This action is documented in wp-admin/edit-form-blocks.php */
  65  do_action( 'enqueue_block_editor_assets' );
  66  
  67  /** This action is documented in wp-admin/widgets-form.php */
  68  do_action( 'sidebar_admin_setup' );
  69  
  70  require_once  ABSPATH . 'wp-admin/admin-header.php';
  71  
  72  /** This action is documented in wp-admin/widgets-form.php */
  73  do_action( 'widgets_admin_page' );
  74  ?>
  75  
  76  <div id="widgets-editor" class="blocks-widgets-container">
  77      <?php // JavaScript is disabled. ?>
  78      <div class="wrap hide-if-js widgets-editor-no-js">
  79          <h1 class="wp-heading-inline"><?php echo esc_html( $title ); ?></h1>
  80          <?php
  81          if ( file_exists( WP_PLUGIN_DIR . '/classic-widgets/classic-widgets.php' ) ) {
  82              // If Classic Widgets is already installed, provide a link to activate the plugin.
  83              $installed           = true;
  84              $plugin_activate_url = wp_nonce_url( 'plugins.php?action=activate&amp;plugin=classic-widgets/classic-widgets.php', 'activate-plugin_classic-widgets/classic-widgets.php' );
  85              $message             = sprintf(
  86                  /* translators: %s: Link to activate the Classic Widgets plugin. */
  87                  __( 'The block widgets require JavaScript. Please enable JavaScript in your browser settings, or activate the <a href="%s">Classic Widgets plugin</a>.' ),
  88                  esc_url( $plugin_activate_url )
  89              );
  90          } else {
  91              // If Classic Widgets is not installed, provide a link to install it.
  92              $installed          = false;
  93              $plugin_install_url = wp_nonce_url( self_admin_url( 'update.php?action=install-plugin&plugin=classic-widgets' ), 'install-plugin_classic-widgets' );
  94              $message            = sprintf(
  95                  /* translators: %s: A link to install the Classic Widgets plugin. */
  96                  __( 'The block widgets require JavaScript. Please enable JavaScript in your browser settings, or install the <a href="%s">Classic Widgets plugin</a>.' ),
  97                  esc_url( $plugin_install_url )
  98              );
  99          }
 100          /**
 101           * Filters the message displayed in the block widget interface when JavaScript is
 102           * not enabled in the browser.
 103           *
 104           * @since 6.4.0
 105           *
 106           * @param string $message The message being displayed.
 107           * @param bool   $installed Whether the Classic Widget plugin is installed.
 108           */
 109          $message = apply_filters( 'block_widgets_no_javascript_message', $message, $installed );
 110          wp_admin_notice(
 111              $message,
 112              array(
 113                  'type'               => 'error',
 114                  'additional_classes' => array( 'hide-if-js' ),
 115              )
 116          );
 117          ?>
 118      </div>
 119  </div>
 120  
 121  <?php
 122  /** This action is documented in wp-admin/widgets-form.php */
 123  do_action( 'sidebar_admin_page' );
 124  
 125  require_once  ABSPATH . 'wp-admin/admin-footer.php';