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<title>[50776] trunk: Editor: Abstract block editor configuration</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/50776">50776</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/50776","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>gziolo</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2021-04-21 05:10:56 +0000 (Wed, 21 Apr 2021)</dd>
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<pre style='padding-left: 1em; margin: 2em 0; border-left: 2px solid #ccc; line-height: 1.25; font-size: 105%; font-family: sans-serif'>Editor: Abstract block editor configuration

There are several WordPress hooks defined on the server that depend on $post object that isn't present on the new screens like edit site, edit widgets, or edit navigation. This patch deprecates existing filters and introduces replacements that are context-aware.

Props azaozz, andraganescu, jeremyfelt, nosolosw, youknowriad.
See <a href="https://core.trac.wordpress.org/ticket/52920">#52920</a>.</pre>

<h3>Modified Paths</h3>
<ul>
<li><a href="#trunksrcwpadmineditformblocksphp">trunk/src/wp-admin/edit-form-blocks.php</a></li>
<li><a href="#trunksrcwpadminincludespostphp">trunk/src/wp-admin/includes/post.php</a></li>
<li><a href="#trunksrcwpsettingsphp">trunk/src/wp-settings.php</a></li>
</ul>

<h3>Added Paths</h3>
<ul>
<li><a href="#trunksrcwpincludesblockeditorphp">trunk/src/wp-includes/block-editor.php</a></li>
<li><a href="#trunktestsphpunittestsblocksblockeditorphp">trunk/tests/phpunit/tests/blocks/block-editor.php</a></li>
</ul>

</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunksrcwpadmineditformblocksphp"></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-blocks.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-admin/edit-form-blocks.php   2021-04-21 01:31:45 UTC (rev 50775)
+++ trunk/src/wp-admin/edit-form-blocks.php     2021-04-21 05:10:56 UTC (rev 50776)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -23,6 +23,8 @@
</span><span class="cx" style="display: block; padding: 0 10px">  */
</span><span class="cx" style="display: block; padding: 0 10px"> global $post_type, $post_type_object, $post, $title, $editor_styles, $wp_meta_boxes;
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+$editor_name = 'post-editor';
+
</ins><span class="cx" style="display: block; padding: 0 10px"> // Flag that we're loading the block editor.
</span><span class="cx" style="display: block; padding: 0 10px"> $current_screen = get_current_screen();
</span><span class="cx" style="display: block; padding: 0 10px"> $current_screen->is_block_editor( true );
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -56,6 +58,7 @@
</span><span class="cx" style="display: block; padding: 0 10px">        sprintf( '/wp/v2/%s/%d/autosaves?context=edit', $rest_base, $post->ID ),
</span><span class="cx" style="display: block; padding: 0 10px"> );
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+
</ins><span class="cx" style="display: block; padding: 0 10px"> /**
</span><span class="cx" style="display: block; padding: 0 10px">  * Preload common data by specifying an array of REST API paths that will be preloaded.
</span><span class="cx" style="display: block; padding: 0 10px">  *
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -135,32 +138,7 @@
</span><span class="cx" style="display: block; padding: 0 10px">        'before'
</span><span class="cx" style="display: block; padding: 0 10px"> );
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-
</del><span class="cx" style="display: block; padding: 0 10px"> /*
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- * Initialize the editor.
- */
-
-$align_wide         = get_theme_support( 'align-wide' );
-$color_palette      = current( (array) get_theme_support( 'editor-color-palette' ) );
-$font_sizes         = current( (array) get_theme_support( 'editor-font-sizes' ) );
-$gradient_presets   = current( (array) get_theme_support( 'editor-gradient-presets' ) );
-$custom_line_height = get_theme_support( 'custom-line-height' );
-$custom_units       = get_theme_support( 'custom-units' );
-$custom_spacing     = get_theme_support( 'custom-spacing' );
-
-/**
- * Filters the allowed block types for the editor, defaulting to true (all
- * block types supported).
- *
- * @since 5.0.0
- *
- * @param bool|array $allowed_block_types Array of block type slugs, or
- *                                        boolean to enable/disable all.
- * @param WP_Post    $post                The post resource data.
- */
-$allowed_block_types = apply_filters( 'allowed_block_types', true, $post );
-
-/*
</del><span class="cx" style="display: block; padding: 0 10px">  * Get all available templates for the post/page attributes meta-box.
</span><span class="cx" style="display: block; padding: 0 10px">  * The "Default template" array element should only be added if the array is
</span><span class="cx" style="display: block; padding: 0 10px">  * not empty so we do not trigger the template select element without any options
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -175,12 +153,6 @@
</span><span class="cx" style="display: block; padding: 0 10px">        $available_templates
</span><span class="cx" style="display: block; padding: 0 10px"> ) : $available_templates;
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-// Media settings.
-$max_upload_size = wp_max_upload_size();
-if ( ! $max_upload_size ) {
-       $max_upload_size = 0;
-}
-
</del><span class="cx" style="display: block; padding: 0 10px"> // Editor Styles.
</span><span class="cx" style="display: block; padding: 0 10px"> $styles = array(
</span><span class="cx" style="display: block; padding: 0 10px">        array(
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -208,39 +180,6 @@
</span><span class="cx" style="display: block; padding: 0 10px">        }
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-// Image sizes.
-
-/** This filter is documented in wp-admin/includes/media.php */
-$image_size_names = apply_filters(
-       'image_size_names_choose',
-       array(
-               'thumbnail' => __( 'Thumbnail' ),
-               'medium'    => __( 'Medium' ),
-               'large'     => __( 'Large' ),
-               'full'      => __( 'Full Size' ),
-       )
-);
-
-$available_image_sizes = array();
-foreach ( $image_size_names as $image_size_slug => $image_size_name ) {
-       $available_image_sizes[] = array(
-               'slug' => $image_size_slug,
-               'name' => $image_size_name,
-       );
-}
-
-$default_size       = get_option( 'image_default_size', 'large' );
-$image_default_size = in_array( $default_size, array_keys( $image_size_names ), true ) ? $image_default_size : 'large';
-
-$image_dimensions = array();
-$all_sizes        = wp_get_registered_image_subsizes();
-foreach ( $available_image_sizes as $size ) {
-       $key = $size['slug'];
-       if ( isset( $all_sizes[ $key ] ) ) {
-               $image_dimensions[ $key ] = $all_sizes[ $key ];
-       }
-}
-
</del><span class="cx" style="display: block; padding: 0 10px"> // Lock settings.
</span><span class="cx" style="display: block; padding: 0 10px"> $user_id = wp_check_post_lock( $post->ID );
</span><span class="cx" style="display: block; padding: 0 10px"> if ( $user_id ) {
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -289,24 +228,13 @@
</span><span class="cx" style="display: block; padding: 0 10px"> $body_placeholder = apply_filters( 'write_your_story', __( 'Type / to choose a block' ), $post );
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px"> $editor_settings = array(
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-        'alignWide'                            => $align_wide,
</del><span class="cx" style="display: block; padding: 0 10px">         'availableTemplates'                   => $available_templates,
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-        'allowedBlockTypes'                    => $allowed_block_types,
-       'disableCustomColors'                  => get_theme_support( 'disable-custom-colors' ),
-       'disableCustomFontSizes'               => get_theme_support( 'disable-custom-font-sizes' ),
-       'disableCustomGradients'               => get_theme_support( 'disable-custom-gradients' ),
</del><span class="cx" style="display: block; padding: 0 10px">         'disablePostFormats'                   => ! current_theme_supports( 'post-formats' ),
</span><span class="cx" style="display: block; padding: 0 10px">        /** This filter is documented in wp-admin/edit-form-advanced.php */
</span><span class="cx" style="display: block; padding: 0 10px">        'titlePlaceholder'                     => apply_filters( 'enter_title_here', __( 'Add title' ), $post ),
</span><span class="cx" style="display: block; padding: 0 10px">        'bodyPlaceholder'                      => $body_placeholder,
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-        'isRTL'                                => is_rtl(),
</del><span class="cx" style="display: block; padding: 0 10px">         'autosaveInterval'                     => AUTOSAVE_INTERVAL,
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-        'maxUploadFileSize'                    => $max_upload_size,
-       'allowedMimeTypes'                     => get_allowed_mime_types(),
</del><span class="cx" style="display: block; padding: 0 10px">         'styles'                               => $styles,
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-        'imageSizes'                           => $available_image_sizes,
-       'imageDefaultSize'                     => $image_default_size,
-       'imageDimensions'                      => $image_dimensions,
</del><span class="cx" style="display: block; padding: 0 10px">         'richEditingEnabled'                   => user_can_richedit(),
</span><span class="cx" style="display: block; padding: 0 10px">        'postLock'                             => $lock_details,
</span><span class="cx" style="display: block; padding: 0 10px">        'postLockUtils'                        => array(
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -320,9 +248,6 @@
</span><span class="cx" style="display: block; padding: 0 10px">        // Whether or not to load the 'postcustom' meta box is stored as a user meta
</span><span class="cx" style="display: block; padding: 0 10px">        // field so that we're not always loading its assets.
</span><span class="cx" style="display: block; padding: 0 10px">        'enableCustomFields'                   => (bool) get_user_meta( get_current_user_id(), 'enable_custom_fields', true ),
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-        'enableCustomLineHeight'               => $custom_line_height,
-       'enableCustomUnits'                    => $custom_units,
-       'enableCustomSpacing'                  => $custom_spacing,
</del><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"> $autosave = wp_get_post_autosave( $post->ID );
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -336,18 +261,6 @@
</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"> 
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-if ( false !== $color_palette ) {
-       $editor_settings['colors'] = $color_palette;
-}
-
-if ( false !== $font_sizes ) {
-       $editor_settings['fontSizes'] = $font_sizes;
-}
-
-if ( false !== $gradient_presets ) {
-       $editor_settings['gradients'] = $gradient_presets;
-}
-
</del><span class="cx" style="display: block; padding: 0 10px"> if ( ! empty( $post_type_object->template ) ) {
</span><span class="cx" style="display: block; padding: 0 10px">        $editor_settings['template']     = $post_type_object->template;
</span><span class="cx" style="display: block; padding: 0 10px">        $editor_settings['templateLock'] = ! empty( $post_type_object->template_lock ) ? $post_type_object->template_lock : false;
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -372,7 +285,6 @@
</span><span class="cx" style="display: block; padding: 0 10px"> wp_tinymce_inline_scripts();
</span><span class="cx" style="display: block; padding: 0 10px"> wp_enqueue_editor();
</span><span class="cx" style="display: block; padding: 0 10px"> 
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">-
</del><span class="cx" style="display: block; padding: 0 10px"> /**
</span><span class="cx" style="display: block; padding: 0 10px">  * Styles
</span><span class="cx" style="display: block; padding: 0 10px">  */
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -400,15 +312,7 @@
</span><span class="cx" style="display: block; padding: 0 10px">        unset( $editor_settings['enableCustomFields'] );
</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">-/**
- * Filters the settings to pass to the block editor.
- *
- * @since 5.0.0
- *
- * @param array   $editor_settings Default editor settings.
- * @param WP_Post $post            Post being edited.
- */
-$editor_settings = apply_filters( 'block_editor_settings', $editor_settings, $post );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+$editor_settings = get_block_editor_settings( $editor_name, $editor_settings );
</ins><span class="cx" style="display: block; padding: 0 10px"> 
</span><span class="cx" style="display: block; padding: 0 10px"> $init_script = <<<JS
</span><span class="cx" style="display: block; padding: 0 10px"> ( function() {
</span></span></pre></div>
<a id="trunksrcwpadminincludespostphp"></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/post.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-admin/includes/post.php      2021-04-21 01:31:45 UTC (rev 50775)
+++ trunk/src/wp-admin/includes/post.php        2021-04-21 05:10:56 UTC (rev 50776)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -2181,64 +2181,6 @@
</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"> /**
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- * Returns all the block categories that will be shown in the block editor.
- *
- * @since 5.0.0
- *
- * @param WP_Post $post Post object.
- * @return array[] Array of block categories.
- */
-function get_block_categories( $post ) {
-       $default_categories = array(
-               array(
-                       'slug'  => 'text',
-                       'title' => _x( 'Text', 'block category' ),
-                       'icon'  => null,
-               ),
-               array(
-                       'slug'  => 'media',
-                       'title' => _x( 'Media', 'block category' ),
-                       'icon'  => null,
-               ),
-               array(
-                       'slug'  => 'design',
-                       'title' => _x( 'Design', 'block category' ),
-                       'icon'  => null,
-               ),
-               array(
-                       'slug'  => 'widgets',
-                       'title' => _x( 'Widgets', 'block category' ),
-                       'icon'  => null,
-               ),
-               array(
-                       'slug'  => 'theme',
-                       'title' => _x( 'Theme', 'block category' ),
-                       'icon'  => null,
-               ),
-               array(
-                       'slug'  => 'embed',
-                       'title' => _x( 'Embeds', 'block category' ),
-                       'icon'  => null,
-               ),
-               array(
-                       'slug'  => 'reusable',
-                       'title' => _x( 'Reusable Blocks', 'block category' ),
-                       'icon'  => null,
-               ),
-       );
-
-       /**
-        * Filters the default array of block categories.
-        *
-        * @since 5.0.0
-        *
-        * @param array[] $default_categories Array of block categories.
-        * @param WP_Post $post               Post being loaded.
-        */
-       return apply_filters( 'block_categories', $default_categories, $post );
-}
-
-/**
</del><span class="cx" style="display: block; padding: 0 10px">  * Prepares server-registered blocks for the block editor.
</span><span class="cx" style="display: block; padding: 0 10px">  *
</span><span class="cx" style="display: block; padding: 0 10px">  * Returns an associative array of registered block data keyed by block name. Data includes properties
</span></span></pre></div>
<a id="trunksrcwpincludesblockeditorphp"></a>
<div class="addfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Added: trunk/src/wp-includes/block-editor.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-includes/block-editor.php                            (rev 0)
+++ trunk/src/wp-includes/block-editor.php      2021-04-21 05:10:56 UTC (rev 50776)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -0,0 +1,267 @@
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+<?php
+/**
+ * Block Editor API.
+ *
+ * @package WordPress
+ * @subpackage Editor
+ * @since 5.8.0
+ */
+
+/**
+ * Returns the list of default categories for block types.
+ *
+ * @since 5.8.0.
+ *
+ * @return array[] Array of categories for block types.
+ */
+function get_default_block_categories() {
+       return array(
+               array(
+                       'slug'  => 'text',
+                       'title' => _x( 'Text', 'block category' ),
+                       'icon'  => null,
+               ),
+               array(
+                       'slug'  => 'media',
+                       'title' => _x( 'Media', 'block category' ),
+                       'icon'  => null,
+               ),
+               array(
+                       'slug'  => 'design',
+                       'title' => _x( 'Design', 'block category' ),
+                       'icon'  => null,
+               ),
+               array(
+                       'slug'  => 'widgets',
+                       'title' => _x( 'Widgets', 'block category' ),
+                       'icon'  => null,
+               ),
+               array(
+                       'slug'  => 'theme',
+                       'title' => _x( 'Theme', 'block category' ),
+                       'icon'  => null,
+               ),
+               array(
+                       'slug'  => 'embed',
+                       'title' => _x( 'Embeds', 'block category' ),
+                       'icon'  => null,
+               ),
+               array(
+                       'slug'  => 'reusable',
+                       'title' => _x( 'Reusable Blocks', 'block category' ),
+                       'icon'  => null,
+               ),
+       );
+}
+
+/**
+ * Returns all the categories for block types that will be shown in the block editor.
+ *
+ * @since 5.0.0
+ *
+ * @param string|WP_Post $editor_name_or_post The name of the editor (e.g. 'post-editor')
+ *                                            or the post object.
+ *
+ * @return array[] Array of categories for block types.
+ */
+function get_block_categories( $editor_name_or_post ) {
+       // Assume the post editor when the WP_Post object passed.
+       $editor_name        = is_object( $editor_name_or_post ) ? 'post-editor' : $editor_name_or_post;
+       $default_categories = get_default_block_categories();
+
+       /**
+        * Filters the default array of categories for block types.
+        *
+        * @since 5.8.0
+        *
+        * @param array[] $default_categories Array of categories for block types.
+        */
+       $block_categories = apply_filters( "block_categories_{$editor_name}", $default_categories );
+       if ( 'post-editor' === $editor_name ) {
+               $post = is_object( $editor_name_or_post ) ? $editor_name_or_post : get_post();
+
+               /**
+                * Filters the default array of categories for block types.
+                *
+                * @since 5.0.0
+                * @deprecated 5.8.0 The hook transitioned to support also screens that don't contain the $post instance.
+                *
+                * @param array[] $block_categories Array of categories for block types.
+                * @param WP_Post $post             Post being loaded.
+                */
+               $block_categories = apply_filters_deprecated( 'block_categories', array( $block_categories, $post ), '5.8.0', "block_categories_{$editor_name}" );
+       }
+
+       return $block_categories;
+}
+
+/**
+ * Gets the list of allowed block types to use in the block editor.
+ *
+ * @since 5.8.0
+ *
+ * @param string $editor_name The name of the editor (e.g. 'post-editor').
+ *
+ * @return bool|array Array of block type slugs, or boolean to enable/disable all.
+ */
+function get_allowed_block_types( $editor_name ) {
+       $allowed_block_types = true;
+
+       /**
+        * Filters the allowed block types for the given editor, defaulting to true (all
+        * registered block types supported).
+        *
+        * @since 5.8.0
+        *
+        * @param bool|array $allowed_block_types Array of block type slugs, or
+        *                                        boolean to enable/disable all.
+        */
+       $allowed_block_types = apply_filters( "allowed_block_types_{$editor_name}", $allowed_block_types );
+       if ( 'post-editor' === $editor_name ) {
+               $post = get_post();
+
+               /**
+                * Filters the allowed block types for the editor, defaulting to true (all
+                * block types supported).
+                *
+                * @since 5.0.0
+                * @deprecated 5.8.0 The hook transitioned to support also screens that don't contain $post instance.
+                *
+                * @param bool|array $allowed_block_types Array of block type slugs, or
+                *                                        boolean to enable/disable all.
+                * @param WP_Post    $post                The post resource data.
+                */
+               $allowed_block_types = apply_filters_deprecated( 'allowed_block_types', array( $allowed_block_types, $post ), '5.8.0', "allowed_block_types_{$editor_name}" );
+       }
+
+       return $allowed_block_types;
+}
+
+/**
+ * Returns the default block editor settings.
+ *
+ * @since 5.8.0
+ *
+ * @return array The default block editor settings.
+ */
+function get_default_block_editor_settings() {
+       // Media settings.
+       $max_upload_size = wp_max_upload_size();
+       if ( ! $max_upload_size ) {
+               $max_upload_size = 0;
+       }
+
+       /** This filter is documented in wp-admin/includes/media.php */
+       $image_size_names = apply_filters(
+               'image_size_names_choose',
+               array(
+                       'thumbnail' => __( 'Thumbnail' ),
+                       'medium'    => __( 'Medium' ),
+                       'large'     => __( 'Large' ),
+                       'full'      => __( 'Full Size' ),
+               )
+       );
+
+       $available_image_sizes = array();
+       foreach ( $image_size_names as $image_size_slug => $image_size_name ) {
+               $available_image_sizes[] = array(
+                       'slug' => $image_size_slug,
+                       'name' => $image_size_name,
+               );
+       }
+
+       $default_size       = get_option( 'image_default_size', 'large' );
+       $image_default_size = in_array( $default_size, array_keys( $image_size_names ), true ) ? $image_default_size : 'large';
+
+       $image_dimensions = array();
+       $all_sizes        = wp_get_registered_image_subsizes();
+       foreach ( $available_image_sizes as $size ) {
+               $key = $size['slug'];
+               if ( isset( $all_sizes[ $key ] ) ) {
+                       $image_dimensions[ $key ] = $all_sizes[ $key ];
+               }
+       }
+
+       $editor_settings = array(
+               'alignWide'              => get_theme_support( 'align-wide' ),
+               'allowedBlockTypes'      => true,
+               'allowedMimeTypes'       => get_allowed_mime_types(),
+               'blockCategories'        => get_default_block_categories(),
+               'disableCustomColors'    => get_theme_support( 'disable-custom-colors' ),
+               'disableCustomFontSizes' => get_theme_support( 'disable-custom-font-sizes' ),
+               'disableCustomGradients' => get_theme_support( 'disable-custom-gradients' ),
+               'enableCustomLineHeight' => get_theme_support( 'custom-line-height' ),
+               'enableCustomSpacing'    => get_theme_support( 'custom-spacing' ),
+               'enableCustomUnits'      => get_theme_support( 'custom-units' ),
+               'isRTL'                  => is_rtl(),
+               'imageDefaultSize'       => $image_default_size,
+               'imageDimensions'        => $image_dimensions,
+               'imageEditing'           => true,
+               'imageSizes'             => $available_image_sizes,
+               'maxUploadFileSize'      => $max_upload_size,
+       );
+
+       // Theme settings.
+       $color_palette = current( (array) get_theme_support( 'editor-color-palette' ) );
+       if ( false !== $color_palette ) {
+               $editor_settings['colors'] = $color_palette;
+       }
+
+       $font_sizes = current( (array) get_theme_support( 'editor-font-sizes' ) );
+       if ( false !== $font_sizes ) {
+               $editor_settings['fontSizes'] = $font_sizes;
+       }
+
+       $gradient_presets = current( (array) get_theme_support( 'editor-gradient-presets' ) );
+       if ( false !== $gradient_presets ) {
+               $editor_settings['gradients'] = $gradient_presets;
+       }
+
+       return $editor_settings;
+}
+
+/**
+ * Returns the contextualized block editor settings settings for a selected editor type.
+ *
+ * @since 5.8.0
+ *
+ * @param string $editor_name     The name of the editor (e.g. 'post-editor').
+ * @param array  $custom_settings Optional custom settings to use with the editor type.
+ *
+ * @return array The contextualized block editor settings.
+ */
+function get_block_editor_settings( $editor_name, $custom_settings = array() ) {
+       $editor_settings = array_merge(
+               get_default_block_editor_settings( $editor_name ),
+               array(
+                       'allowedBlockTypes' => get_allowed_block_types( $editor_name ),
+                       'blockCategories'   => get_block_categories( $editor_name ),
+               ),
+               $custom_settings
+       );
+
+       /**
+        * Filters the settings to pass to the block editor for a given editor type.
+        *
+        * @since 5.8.0
+        *
+        * @param array $editor_settings Default editor settings.
+        */
+       $editor_settings = apply_filters( "block_editor_settings_{$editor_name}", $editor_settings );
+       if ( 'post-editor' === $editor_name ) {
+               $post = get_post();
+
+               /**
+                * Filters the settings to pass to the block editor.
+                *
+                * @since 5.0.0
+                * @deprecated 5.8.0 The hook transitioned to support also screens that don't contain $post instance.
+                *
+                * @param array   $editor_settings Default editor settings.
+                * @param WP_Post $post            Post being edited.
+                */
+               $editor_settings = apply_filters_deprecated( 'block_editor_settings', array( $editor_settings, $post ), '5.8.0', "block_editor_settings_{$editor_name}" );
+       }
+
+       return $editor_settings;
+}
</ins><span class="cx" style="display: block; padding: 0 10px">Property changes on: trunk/src/wp-includes/block-editor.php
</span><span class="cx" style="display: block; padding: 0 10px">___________________________________________________________________
</span></span></pre></div>
<a id="svneolstyle"></a>
<div class="addfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Added: svn:eol-style</h4></div>
<ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+native
</ins><span class="cx" style="display: block; padding: 0 10px">\ No newline at end of property
</span><a id="trunksrcwpsettingsphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/wp-settings.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-settings.php 2021-04-21 01:31:45 UTC (rev 50775)
+++ trunk/src/wp-settings.php   2021-04-21 05:10:56 UTC (rev 50776)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -294,6 +294,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> require ABSPATH . WPINC . '/class-wp-block-parser.php';
</span><span class="cx" style="display: block; padding: 0 10px"> require ABSPATH . WPINC . '/blocks.php';
</span><span class="cx" style="display: block; padding: 0 10px"> require ABSPATH . WPINC . '/blocks/index.php';
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+require ABSPATH . WPINC . '/block-editor.php';
</ins><span class="cx" style="display: block; padding: 0 10px"> require ABSPATH . WPINC . '/block-patterns.php';
</span><span class="cx" style="display: block; padding: 0 10px"> require ABSPATH . WPINC . '/class-wp-block-supports.php';
</span><span class="cx" style="display: block; padding: 0 10px"> require ABSPATH . WPINC . '/block-supports/align.php';
</span></span></pre></div>
<a id="trunktestsphpunittestsblocksblockeditorphp"></a>
<div class="addfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Added: trunk/tests/phpunit/tests/blocks/block-editor.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/tests/phpunit/tests/blocks/block-editor.php                         (rev 0)
+++ trunk/tests/phpunit/tests/blocks/block-editor.php   2021-04-21 05:10:56 UTC (rev 50776)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -0,0 +1,312 @@
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+<?php
+/**
+ * WP_Block Tests
+ *
+ * @package WordPress
+ * @subpackage Blocks
+ * @since 5.5.0
+ */
+
+/**
+ * Tests for the block editor methods.
+ *
+ * @since 5.5.0
+ *
+ * @group blocks
+ */
+class WP_Test_Block_Editor extends WP_UnitTestCase {
+
+       /**
+        * Sets up each test method.
+        */
+       public function setUp() {
+               global $post;
+
+               parent::setUp();
+
+               $args = array(
+                       'post_title' => 'Example',
+               );
+
+               $post = $this->factory()->post->create_and_get( $args );
+       }
+
+       function filter_set_block_categories_post( $block_categories, $post ) {
+               if ( empty( $post ) ) {
+                       return $block_categories;
+               }
+
+               return array(
+                       array(
+                               'slug'  => 'filtered-category',
+                               'title' => 'Filtered Category',
+                               'icon'  => null,
+                       ),
+               );
+       }
+
+       function filter_set_allowed_block_types_post( $allowed_block_types, $post ) {
+               if ( empty( $post ) ) {
+                       return $allowed_block_types;
+               }
+
+               return array( 'test/filtered-block' );
+       }
+
+       function filter_set_block_editor_settings_post( $editor_settings, $post ) {
+               if ( empty( $post ) ) {
+                       return $allowed_block_types;
+               }
+
+               return array(
+                       'filter' => 'deprecated',
+               );
+       }
+
+       /**
+        * @ticket 52920
+        * @expectedDeprecated block_categories
+        */
+       function test_get_block_categories_deprecated_filter_post_object() {
+               add_filter( 'block_categories', array( $this, 'filter_set_block_categories_post' ), 10, 2 );
+
+               $block_categories = get_block_categories( get_post() );
+
+               remove_filter( 'block_categories', array( $this, 'filter_set_block_categories_post' ) );
+
+               $this->assertSameSets(
+                       array(
+                               array(
+                                       'slug'  => 'filtered-category',
+                                       'title' => 'Filtered Category',
+                                       'icon'  => null,
+                               ),
+                       ),
+                       $block_categories
+               );
+       }
+
+       /**
+        * @ticket 52920
+        * @expectedDeprecated block_categories
+        */
+       function test_get_block_categories_deprecated_filter_post_editor() {
+               add_filter( 'block_categories', array( $this, 'filter_set_block_categories_post' ), 10, 2 );
+
+               $block_categories = get_block_categories( 'post-editor' );
+
+               remove_filter( 'block_categories', array( $this, 'filter_set_block_categories_post' ) );
+
+               $this->assertSameSets(
+                       array(
+                               array(
+                                       'slug'  => 'filtered-category',
+                                       'title' => 'Filtered Category',
+                                       'icon'  => null,
+                               ),
+                       ),
+                       $block_categories
+               );
+       }
+
+       /**
+        * @ticket 52920
+        */
+       function test_get_allowed_block_types_default() {
+               $allowed_block_types = get_allowed_block_types( 'post-editor' );
+
+               $this->assertTrue( $allowed_block_types );
+       }
+
+       /**
+        * @ticket 52920
+        * @expectedDeprecated allowed_block_types
+        */
+       function test_get_allowed_block_types_deprecated_filter_post_editor() {
+               add_filter( 'allowed_block_types', array( $this, 'filter_set_allowed_block_types_post' ), 10, 2 );
+
+               $allowed_block_types = get_allowed_block_types( 'post-editor' );
+
+               remove_filter( 'allowed_block_types', array( $this, 'filter_set_allowed_block_types_post' ) );
+
+               $this->assertSameSets( array( 'test/filtered-block' ), $allowed_block_types );
+       }
+
+       /**
+        * @ticket 52920
+        */
+       function test_get_default_block_editor_settings() {
+               $settings = get_default_block_editor_settings();
+
+               $this->assertCount( 16, $settings );
+               $this->assertFalse( $settings['alignWide'] );
+               $this->assertInternalType( 'array', $settings['allowedMimeTypes'] );
+               $this->assertTrue( $settings['allowedBlockTypes'] );
+               $this->assertSameSets(
+                       array(
+                               array(
+                                       'slug'  => 'text',
+                                       'title' => 'Text',
+                                       'icon'  => null,
+                               ),
+                               array(
+                                       'slug'  => 'media',
+                                       'title' => 'Media',
+                                       'icon'  => null,
+                               ),
+                               array(
+                                       'slug'  => 'design',
+                                       'title' => 'Design',
+                                       'icon'  => null,
+                               ),
+                               array(
+                                       'slug'  => 'widgets',
+                                       'title' => 'Widgets',
+                                       'icon'  => null,
+                               ),
+                               array(
+                                       'slug'  => 'theme',
+                                       'title' => 'Theme',
+                                       'icon'  => null,
+                               ),
+                               array(
+                                       'slug'  => 'embed',
+                                       'title' => 'Embeds',
+                                       'icon'  => null,
+                               ),
+                               array(
+                                       'slug'  => 'reusable',
+                                       'title' => 'Reusable Blocks',
+                                       'icon'  => null,
+                               ),
+                       ),
+                       $settings['blockCategories']
+               );
+               $this->assertFalse( $settings['disableCustomColors'] );
+               $this->assertFalse( $settings['disableCustomFontSizes'] );
+               $this->assertFalse( $settings['disableCustomGradients'] );
+               $this->assertFalse( $settings['enableCustomLineHeight'] );
+               $this->assertFalse( $settings['enableCustomSpacing'] );
+               $this->assertFalse( $settings['enableCustomUnits'] );
+               $this->assertFalse( $settings['isRTL'] );
+               $this->assertSame( 'large', $settings['imageDefaultSize'] );
+               $this->assertSameSets(
+                       array(
+                               array(
+                                       'width'  => 150,
+                                       'height' => 150,
+                                       'crop'   => true,
+                               ),
+                               array(
+                                       'width'  => 300,
+                                       'height' => 300,
+                                       'crop'   => false,
+                               ),
+                               array(
+                                       'width'  => 1024,
+                                       'height' => 1024,
+                                       'crop'   => false,
+                               ),
+                       ),
+                       $settings['imageDimensions']
+               );
+               $this->assertTrue( $settings['imageEditing'] );
+               $this->assertSameSets(
+                       array(
+                               array(
+                                       'slug' => 'full',
+                                       'name' => 'Full Size',
+                               ),
+                               array(
+                                       'slug' => 'large',
+                                       'name' => 'Large',
+                               ),
+                               array(
+                                       'slug' => 'medium',
+                                       'name' => 'Medium',
+                               ),
+                               array(
+                                       'slug' => 'thumbnail',
+                                       'name' => 'Thumbnail',
+                               ),
+                       ),
+                       $settings['imageSizes']
+               );
+               $this->assertInternalType( 'int', $settings['maxUploadFileSize'] );
+       }
+
+       /**
+        * @ticket 52920
+        */
+       function test_get_block_editor_settings_returns_default_settings() {
+               $this->assertSameSets(
+                       get_block_editor_settings( 'my-editor' ),
+                       get_default_block_editor_settings()
+               );
+       }
+
+       /**
+        * @ticket 52920
+        */
+       function test_get_block_editor_settings_overrides_default_settings_my_editor() {
+               function filter_allowed_block_types_my_editor() {
+                       return array( 'test/filtered-my-block' );
+               }
+               function filter_block_categories_my_editor() {
+                       return array(
+                               array(
+                                       'slug'  => 'filtered-my-category',
+                                       'title' => 'Filtered My Category',
+                                       'icon'  => null,
+                               ),
+                       );
+               }
+               function filter_block_editor_settings_my_editor( $editor_settings ) {
+                       $editor_settings['maxUploadFileSize'] = 12345;
+
+                       return $editor_settings;
+               }
+
+               add_filter( 'allowed_block_types_my-editor', 'filter_allowed_block_types_my_editor', 10, 1 );
+               add_filter( 'block_categories_my-editor', 'filter_block_categories_my_editor', 10, 1 );
+               add_filter( 'block_editor_settings_my-editor', 'filter_block_editor_settings_my_editor', 10, 1 );
+
+               $settings = get_block_editor_settings( 'my-editor' );
+
+               remove_filter( 'allowed_block_types_my-editor', 'filter_allowed_block_types_my_editor' );
+               remove_filter( 'block_categories_my-editor', 'filter_block_categories_my_editor' );
+               remove_filter( 'block_editor_settings_my-editor', 'filter_block_editor_settings_my_editor' );
+
+               $this->assertSameSets( array( 'test/filtered-my-block' ), $settings['allowedBlockTypes'] );
+               $this->assertSameSets(
+                       array(
+                               array(
+                                       'slug'  => 'filtered-my-category',
+                                       'title' => 'Filtered My Category',
+                                       'icon'  => null,
+                               ),
+                       ),
+                       $settings['blockCategories']
+               );
+               $this->assertSame( 12345, $settings['maxUploadFileSize'] );
+       }
+
+       /**
+        * @ticket 52920
+        * @expectedDeprecated block_editor_settings
+        */
+       function test_get_block_editor_settings_deprecated_filter_post_editor() {
+               add_filter( 'block_editor_settings', array( $this, 'filter_set_block_editor_settings_post' ), 10, 2 );
+
+               $settings = get_block_editor_settings( 'post-editor' );
+
+               remove_filter( 'block_editor_settings', array( $this, 'filter_set_block_editor_settings_post' ) );
+
+               $this->assertSameSets(
+                       array(
+                               'filter' => 'deprecated',
+                       ),
+                       $settings
+               );
+       }
+}
</ins><span class="cx" style="display: block; padding: 0 10px">Property changes on: trunk/tests/phpunit/tests/blocks/block-editor.php
</span><span class="cx" style="display: block; padding: 0 10px">___________________________________________________________________
</span></span></pre></div>
<a id="svneolstyle"></a>
<div class="addfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Added: svn:eol-style</h4></div>
<ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+native
</ins><span class="cx" style="display: block; padding: 0 10px">\ No newline at end of property
</span></div>

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