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<title>[44132] trunk/src/wp-admin/includes/template.php: Meta Boxes: Add `__back_compat_meta_box` and `__block_editor_compatible_meta_box` flags to meta boxes.</title>
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<dt style="float: left; width: 6em; font-weight: bold">Revision</dt> <dd><a style="font-weight: bold" href="https://core.trac.wordpress.org/changeset/44132">44132</a><script type="application/ld+json">{"@context":"http://schema.org","@type":"EmailMessage","description":"Review this Commit","action":{"@type":"ViewAction","url":"https://core.trac.wordpress.org/changeset/44132","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>pento</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2018-12-14 01:17:57 +0000 (Fri, 14 Dec 2018)</dd>
</dl>
<pre style='padding-left: 1em; margin: 2em 0; border-left: 2px solid #ccc; line-height: 1.25; font-size: 105%; font-family: sans-serif'>Meta Boxes: Add `__back_compat_meta_box` and `__block_editor_compatible_meta_box` flags to meta boxes.
When meta boxes are registered, they can use the `__back_compat_meta_box` and `__block_editor_compatible_meta_box` flags, to show whether this registration just exists for if the classic editor is loaded, and whether this meta box is compatible with the block editor.
When a meta box marks itself as incompatible with the block editor, and `WP_DEBUG` is enabled, a warning will show inside that meta box in the classic editor.
As all core meta boxes have been recreated in the block editor, they can be marked with the `__back_compat_meta_box` flag.
Merges <a href="https://core.trac.wordpress.org/changeset/43779">[43779]</a> from the 5.0 branch to trunk.
See <a href="https://core.trac.wordpress.org/ticket/45112">#45112</a>.</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunksrcwpadmineditformadvancedphp">trunk/src/wp-admin/edit-form-advanced.php</a></li>
<li><a href="#trunksrcwpadminincludestemplatephp">trunk/src/wp-admin/includes/template.php</a></li>
</ul>
<h3>Property Changed</h3>
<ul>
<li><a href="#trunk">trunk/</a></li>
</ul>
</div>
<div id="patch">
<h3>Diff</h3>
<span class="cx" style="display: block; padding: 0 10px">Index: trunk
</span><span class="cx" style="display: block; padding: 0 10px">===================================================================
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">--- trunk 2018-12-14 01:10:20 UTC (rev 44131)
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+++ trunk 2018-12-14 01:17:57 UTC (rev 44132)
</ins><a id="trunk"></a>
<div class="propset"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Property changes: trunk</h4>
<pre class="diff"><span>
</span></pre></div>
<a id="svnmergeinfo"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: svn:mergeinfo</h4></div>
<span class="cx" style="display: block; padding: 0 10px"> /branches/3.3:20543
</span><span class="cx" style="display: block; padding: 0 10px"> /branches/3.4:21757
</span><span class="cx" style="display: block; padding: 0 10px"> /branches/4.9:43557,43622
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-/branches/5.0:43681-43682,43684-43688,43719-43720,43723,43726-43727,43729-43731,43734-43744,43751-43754,43758,43761-43765,43767-43770,43772,43774-43775,43777-43778
</del><span class="cx" style="display: block; padding: 0 10px">\ No newline at end of property
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+/branches/5.0:43681-43682,43684-43688,43719-43720,43723,43726-43727,43729-43731,43734-43744,43751-43754,43758,43761-43765,43767-43770,43772,43774-43775,43777-43779
</ins><span class="cx" style="display: block; padding: 0 10px">\ No newline at end of property
</span><a id="trunksrcwpadmineditformadvancedphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/wp-admin/edit-form-advanced.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-admin/edit-form-advanced.php 2018-12-14 01:10:20 UTC (rev 44131)
+++ trunk/src/wp-admin/edit-form-advanced.php 2018-12-14 01:17:57 UTC (rev 44132)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -244,7 +244,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> require_once( ABSPATH . 'wp-admin/includes/meta-boxes.php' );
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px">
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-$publish_callback_args = null;
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+$publish_callback_args = array( '__back_compat_meta_box' => true );
</ins><span class="cx" style="display: block; padding: 0 10px"> if ( post_type_supports( $post_type, 'revisions' ) && 'auto-draft' != $post->post_status ) {
</span><span class="cx" style="display: block; padding: 0 10px"> $revisions = wp_get_post_revisions( $post_ID );
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -252,10 +252,11 @@
</span><span class="cx" style="display: block; padding: 0 10px"> if ( count( $revisions ) > 1 ) {
</span><span class="cx" style="display: block; padding: 0 10px"> reset( $revisions ); // Reset pointer for key()
</span><span class="cx" style="display: block; padding: 0 10px"> $publish_callback_args = array(
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- 'revisions_count' => count( $revisions ),
- 'revision_id' => key( $revisions ),
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ 'revisions_count' => count( $revisions ),
+ 'revision_id' => key( $revisions ),
+ '__back_compat_meta_box' => true,
</ins><span class="cx" style="display: block; padding: 0 10px"> );
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- add_meta_box( 'revisionsdiv', __( 'Revisions' ), 'post_revisions_meta_box', null, 'normal', 'core' );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ add_meta_box( 'revisionsdiv', __( 'Revisions' ), 'post_revisions_meta_box', null, 'normal', 'core', array( '__back_compat_meta_box' => true ) );
</ins><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -262,11 +263,11 @@
</span><span class="cx" style="display: block; padding: 0 10px"> if ( 'attachment' == $post_type ) {
</span><span class="cx" style="display: block; padding: 0 10px"> wp_enqueue_script( 'image-edit' );
</span><span class="cx" style="display: block; padding: 0 10px"> wp_enqueue_style( 'imgareaselect' );
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- add_meta_box( 'submitdiv', __( 'Save' ), 'attachment_submit_meta_box', null, 'side', 'core' );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ add_meta_box( 'submitdiv', __( 'Save' ), 'attachment_submit_meta_box', null, 'side', 'core', array( '__back_compat_meta_box' => true ) );
</ins><span class="cx" style="display: block; padding: 0 10px"> add_action( 'edit_form_after_title', 'edit_form_image_editor' );
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> if ( wp_attachment_is( 'audio', $post ) ) {
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- add_meta_box( 'attachment-id3', __( 'Metadata' ), 'attachment_id3_data_meta_box', null, 'normal', 'core' );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ add_meta_box( 'attachment-id3', __( 'Metadata' ), 'attachment_id3_data_meta_box', null, 'normal', 'core', array( '__back_compat_meta_box' => true ) );
</ins><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px"> } else {
</span><span class="cx" style="display: block; padding: 0 10px"> add_meta_box( 'submitdiv', __( 'Publish' ), 'post_submit_meta_box', null, 'side', 'core', $publish_callback_args );
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -273,7 +274,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> if ( current_theme_supports( 'post-formats' ) && post_type_supports( $post_type, 'post-formats' ) ) {
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- add_meta_box( 'formatdiv', _x( 'Format', 'post format' ), 'post_format_meta_box', null, 'side', 'core' );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ add_meta_box( 'formatdiv', _x( 'Format', 'post format' ), 'post_format_meta_box', null, 'side', 'core', array( '__back_compat_meta_box' => true ) );
</ins><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> // all taxonomies
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -291,27 +292,38 @@
</span><span class="cx" style="display: block; padding: 0 10px"> $tax_meta_box_id = $tax_name . 'div';
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- add_meta_box( $tax_meta_box_id, $label, $taxonomy->meta_box_cb, null, 'side', 'core', array( 'taxonomy' => $tax_name ) );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ add_meta_box(
+ $tax_meta_box_id,
+ $label,
+ $taxonomy->meta_box_cb,
+ null,
+ 'side',
+ 'core',
+ array(
+ 'taxonomy' => $tax_name,
+ '__back_compat_meta_box' => true,
+ )
+ );
</ins><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> if ( post_type_supports( $post_type, 'page-attributes' ) || count( get_page_templates( $post ) ) > 0 ) {
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- add_meta_box( 'pageparentdiv', $post_type_object->labels->attributes, 'page_attributes_meta_box', null, 'side', 'core' );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ add_meta_box( 'pageparentdiv', $post_type_object->labels->attributes, 'page_attributes_meta_box', null, 'side', 'core', array( '__back_compat_meta_box' => true ) );
</ins><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> if ( $thumbnail_support && current_user_can( 'upload_files' ) ) {
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- add_meta_box( 'postimagediv', esc_html( $post_type_object->labels->featured_image ), 'post_thumbnail_meta_box', null, 'side', 'low' );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ add_meta_box( 'postimagediv', esc_html( $post_type_object->labels->featured_image ), 'post_thumbnail_meta_box', null, 'side', 'low', array( '__back_compat_meta_box' => true ) );
</ins><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> if ( post_type_supports( $post_type, 'excerpt' ) ) {
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- add_meta_box( 'postexcerpt', __( 'Excerpt' ), 'post_excerpt_meta_box', null, 'normal', 'core' );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ add_meta_box( 'postexcerpt', __( 'Excerpt' ), 'post_excerpt_meta_box', null, 'normal', 'core', array( '__back_compat_meta_box' => true ) );
</ins><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> if ( post_type_supports( $post_type, 'trackbacks' ) ) {
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- add_meta_box( 'trackbacksdiv', __( 'Send Trackbacks' ), 'post_trackback_meta_box', null, 'normal', 'core' );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ add_meta_box( 'trackbacksdiv', __( 'Send Trackbacks' ), 'post_trackback_meta_box', null, 'normal', 'core', array( '__back_compat_meta_box' => true ) );
</ins><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> if ( post_type_supports( $post_type, 'custom-fields' ) ) {
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- add_meta_box( 'postcustom', __( 'Custom Fields' ), 'post_custom_meta_box', null, 'normal', 'core' );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ add_meta_box( 'postcustom', __( 'Custom Fields' ), 'post_custom_meta_box', null, 'normal', 'core', array( '__back_compat_meta_box' => true ) );
</ins><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> /**
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -327,7 +339,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> // Allow the Discussion meta box to show up if the post type supports comments,
</span><span class="cx" style="display: block; padding: 0 10px"> // or if comments or pings are open.
</span><span class="cx" style="display: block; padding: 0 10px"> if ( comments_open( $post ) || pings_open( $post ) || post_type_supports( $post_type, 'comments' ) ) {
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- add_meta_box( 'commentstatusdiv', __( 'Discussion' ), 'post_comment_status_meta_box', null, 'normal', 'core' );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ add_meta_box( 'commentstatusdiv', __( 'Discussion' ), 'post_comment_status_meta_box', null, 'normal', 'core', array( '__back_compat_meta_box' => true ) );
</ins><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> $stati = get_post_stati( array( 'public' => true ) );
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -340,16 +352,16 @@
</span><span class="cx" style="display: block; padding: 0 10px"> // If the post type support comments, or the post has comments, allow the
</span><span class="cx" style="display: block; padding: 0 10px"> // Comments meta box.
</span><span class="cx" style="display: block; padding: 0 10px"> if ( comments_open( $post ) || pings_open( $post ) || $post->comment_count > 0 || post_type_supports( $post_type, 'comments' ) ) {
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- add_meta_box( 'commentsdiv', __( 'Comments' ), 'post_comment_meta_box', null, 'normal', 'core' );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ add_meta_box( 'commentsdiv', __( 'Comments' ), 'post_comment_meta_box', null, 'normal', 'core', array( '__back_compat_meta_box' => true ) );
</ins><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> if ( ! ( 'pending' == get_post_status( $post ) && ! current_user_can( $post_type_object->cap->publish_posts ) ) ) {
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- add_meta_box( 'slugdiv', __( 'Slug' ), 'post_slug_meta_box', null, 'normal', 'core' );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ add_meta_box( 'slugdiv', __( 'Slug' ), 'post_slug_meta_box', null, 'normal', 'core', array( '__back_compat_meta_box' => true ) );
</ins><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> if ( post_type_supports( $post_type, 'author' ) && current_user_can( $post_type_object->cap->edit_others_posts ) ) {
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- add_meta_box( 'authordiv', __( 'Author' ), 'post_author_meta_box', null, 'normal', 'core' );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ add_meta_box( 'authordiv', __( 'Author' ), 'post_author_meta_box', null, 'normal', 'core', array( '__back_compat_meta_box' => true ) );
</ins><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> /**
</span></span></pre></div>
<a id="trunksrcwpadminincludestemplatephp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/wp-admin/includes/template.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-admin/includes/template.php 2018-12-14 01:10:20 UTC (rev 44131)
+++ trunk/src/wp-admin/includes/template.php 2018-12-14 01:17:57 UTC (rev 44132)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -1136,6 +1136,28 @@
</span><span class="cx" style="display: block; padding: 0 10px"> if ( false == $box || ! $box['title'] ) {
</span><span class="cx" style="display: block; padding: 0 10px"> continue;
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+
+ // Don't show boxes in the block editor, if they're just here for back compat.
+ if ( $screen->is_block_editor() && isset( $box['args']['__back_compat_meta_box'] ) && $box['args']['__back_compat_meta_box'] ) {
+ continue;
+ }
+
+ // Don't show boxes in the block editor that aren't compatible with the block editor.
+ if ( $screen->is_block_editor() && isset( $box['args']['__block_editor_compatible_meta_box'] ) && ! $box['args']['__block_editor_compatible_meta_box'] ) {
+ continue;
+ }
+
+ $block_compatible = true;
+ if ( isset( $box['args']['__block_editor_compatible_meta_box'] ) ) {
+ $block_compatible = (bool) $box['args']['__block_editor_compatible_meta_box'];
+ unset( $box['args']['__block_editor_compatible_meta_box'] );
+ }
+
+ if ( isset( $box['args']['__back_compat_meta_box'] ) ) {
+ $block_compatible |= (bool) $box['args']['__back_compat_meta_box'];
+ unset( $box['args']['__back_compat_meta_box'] );
+ }
+
</ins><span class="cx" style="display: block; padding: 0 10px"> $i++;
</span><span class="cx" style="display: block; padding: 0 10px"> $hidden_class = in_array( $box['id'], $hidden ) ? ' hide-if-js' : '';
</span><span class="cx" style="display: block; padding: 0 10px"> echo '<div id="' . $box['id'] . '" class="postbox ' . postbox_classes( $box['id'], $page ) . $hidden_class . '" ' . '>' . "\n";
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -1161,6 +1183,42 @@
</span><span class="cx" style="display: block; padding: 0 10px"> echo "<span>{$box['title']}</span>";
</span><span class="cx" style="display: block; padding: 0 10px"> echo "</h2>\n";
</span><span class="cx" style="display: block; padding: 0 10px"> echo '<div class="inside">' . "\n";
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+
+ if ( WP_DEBUG && ! $screen->is_block_editor() && ! isset( $_GET['meta-box-loader'] ) ) {
+ if ( is_array( $box['callback'] ) ) {
+ $reflection = new ReflectionMethod( $box['callback'][0], $box['callback'][1] );
+ } else {
+ $reflection = new ReflectionFunction( $box['callback'] );
+ }
+
+ // Don't show an error if it's an internal PHP function.
+ if ( ! $reflection->isInternal() ) {
+
+ // Only show errors if the meta box was registered by a plugin.
+ $filename = $reflection->getFileName();
+ if ( strpos( $filename, WP_PLUGIN_DIR ) === 0 ) {
+ $filename = str_replace( WP_PLUGIN_DIR, '', $filename );
+ $filename = preg_replace( '|^/([^/]*/).*$|', '\\1', $filename );
+
+ $plugins = get_plugins();
+ foreach ( $plugins as $name => $plugin ) {
+ if ( strpos( $name, $filename ) === 0 ) {
+ ?>
+ <div class="error inline">
+ <p>
+ <?php
+ /* translators: %s: the name of the plugin that generated this meta box. */
+ printf( __( "This meta box, from the %s plugin, isn't compatible with the block editor." ), "<strong>{$plugin['Name']}</strong>" );
+ ?>
+ </p>
+ </div>
+ <?php
+ }
+ }
+ }
+ }
+ }
+
</ins><span class="cx" style="display: block; padding: 0 10px"> call_user_func( $box['callback'], $object, $box );
</span><span class="cx" style="display: block; padding: 0 10px"> echo "</div>\n";
</span><span class="cx" style="display: block; padding: 0 10px"> echo "</div>\n";
</span></span></pre>
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