Editor: Remove back-compat stub for Classic Editor's old distraction-free writing mode.

The original script was deprecated in [30338] and removed in [32677].

Props Presskopp, ketuchetan.
Fixes #39448.

git-svn-id: https://develop.svn.wordpress.org/trunk@47164 602fd350-edb4-49c9-b593-d223f7449a82

src/js/_enqueues/deprecated/fullscreen-stub.js

@@ -1,40 +0,0 @@
-/**
- * Distraction-Free Writing (wp-fullscreen) backward compatibility stub.
- *
- * @deprecated 4.1
- * @removed 4.3.
- * @output wp-admin/js/wp-fullscreen-stub.js
- */
-( function() {
-	var noop = function(){};
-
-	window.wp = window.wp || {};
-	window.wp.editor = window.wp.editor || {};
-	window.wp.editor.fullscreen = {
-		bind_resize: noop,
-		dfwWidth: noop,
-		off: noop,
-		on: noop,
-		refreshButtons: noop,
-		resizeTextarea: noop,
-		save: noop,
-		switchmode: noop,
-		toggleUI: noop,
-
-		settings: {},
-		pubsub: {
-			publish: noop,
-			subscribe: noop,
-			unsubscribe: noop,
-			topics: {}
-		},
-		fade: {
-			In: noop,
-			Out: noop
-		},
-		ui: {
-			fade: noop,
-			init: noop
-		}
-	};
-}());

src/wp-admin/includes/update-core.php

@@ -789,6 +789,9 @@ $_old_files = array(
 	// 5.3
 	'wp-includes/js/wp-a11y.js',     // Moved to: wp-includes/js/dist/a11y.js
 	'wp-includes/js/wp-a11y.min.js', // Moved to: wp-includes/js/dist/a11y.min.js
+	// 5.4
+	'wp-admin/js/wp-fullscreen-stub.js',
+	'wp-admin/js/wp-fullscreen-stub.min.js',
 );
 
 /**

src/wp-includes/class-wp-editor.php

@@ -25,7 +25,6 @@ final class _WP_Editors {
 	private static $has_medialib       = false;
 	private static $editor_buttons_css = true;
 	private static $drag_drop_upload   = false;
-	private static $old_dfw_compat     = false;
 	private static $translation;
 	private static $tinymce_scripts_printed = false;
 	private static $link_dialog_printed     = false;
@@ -58,8 +57,7 @@ final class _WP_Editors {
 	 *     @type string     $editor_class      Extra classes to add to the editor textarea element. Default empty.
 	 *     @type bool       $teeny             Whether to output the minimal editor config. Examples include
 	 *                                         Press This and the Comment editor. Default false.
-	 *     @type bool       $dfw               Deprecated in 4.1. Since 4.3 used only to enqueue wp-fullscreen-stub.js
+	 *     @type bool       $dfw               Deprecated in 4.1. Unused.
-	 *                                         for backward compatibility.
 	 *     @type bool|array $tinymce           Whether to load TinyMCE. Can be used to pass settings directly to
 	 *                                         TinyMCE using an array. Default true.
 	 *     @type bool|array $quicktags         Whether to load Quicktags. Can be used to pass settings directly to
@@ -97,7 +95,6 @@ final class _WP_Editors {
 				'editor_css'          => '',
 				'editor_class'        => '',
 				'teeny'               => false,
-				'dfw'                 => false,
 				'_content_editor_dfw' => false,
 				'tinymce'             => true,
 				'quicktags'           => true,
@@ -123,10 +120,6 @@ final class _WP_Editors {
 			self::$has_quicktags = true;
 		}
 
-		if ( $set['dfw'] ) {
-			self::$old_dfw_compat = true;
-		}
-
 		if ( empty( $set['editor_height'] ) ) {
 			return $set;
 		}
@@ -872,10 +865,6 @@ final class _WP_Editors {
 			wp_enqueue_script( 'jquery-ui-autocomplete' );
 		}
 
-		if ( self::$old_dfw_compat ) {
-			wp_enqueue_script( 'wp-fullscreen-stub' );
-		}
-
 		if ( self::$has_medialib ) {
 			add_thickbox();
 			wp_enqueue_script( 'media-upload' );

src/wp-includes/script-loader.php

@@ -716,9 +716,6 @@ function wp_default_scripts( &$scripts ) {
 
 	$scripts->add( 'clipboard', "/wp-includes/js/clipboard$suffix.js", array(), false, 1 );
 
-	// Back-compat for old DFW. To-do: remove at the end of 2016.
-	$scripts->add( 'wp-fullscreen-stub', "/wp-admin/js/wp-fullscreen-stub$suffix.js", array(), false, 1 );
-
 	$scripts->add( 'wp-ajax-response', "/wp-includes/js/wp-ajax-response$suffix.js", array( 'jquery' ), false, 1 );
 	did_action( 'init' ) && $scripts->localize(
 		'wp-ajax-response',