<?php

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/**

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* Block Editor API.

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*

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* @package WordPress

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* @subpackage Editor

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* @since 5.8.0

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*/

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/**

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* Returns the list of default categories for block types.

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*

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* @since 5.8.0

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* @since 6.3.0 Reusable Blocks renamed to Patterns.

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*

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* @return array[] Array of categories for block types.

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*/

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function get_default_block_categories() {

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return array(

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array(

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'slug' => 'text',

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'title' => _x( 'Text', 'block category' ),

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'icon' => null,

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),

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array(

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'slug' => 'media',

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'title' => _x( 'Media', 'block category' ),

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'icon' => null,

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),

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array(

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'slug' => 'design',

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'title' => _x( 'Design', 'block category' ),

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'icon' => null,

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),

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array(

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'slug' => 'widgets',

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'title' => _x( 'Widgets', 'block category' ),

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'icon' => null,

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),

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array(

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'slug' => 'theme',

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'title' => _x( 'Theme', 'block category' ),

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'icon' => null,

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),

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array(

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'slug' => 'embed',

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'title' => _x( 'Embeds', 'block category' ),

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'icon' => null,

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),

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array(

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'slug' => 'reusable',

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'title' => _x( 'Patterns', 'block category' ),

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'icon' => null,

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),

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);

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}

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/**

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* Returns all the categories for block types that will be shown in the block editor.

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*

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* @since 5.0.0

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* @since 5.8.0 It is possible to pass the block editor context as param.

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*

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* @param WP_Post|WP_Block_Editor_Context $post_or_block_editor_context The current post object or

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* the block editor context.

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*

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* @return array[] Array of categories for block types.

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*/

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function get_block_categories( $post_or_block_editor_context ) {

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$block_categories = get_default_block_categories();

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$block_editor_context = $post_or_block_editor_context instanceof WP_Post ?

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new WP_Block_Editor_Context(

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array(

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'post' => $post_or_block_editor_context,

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)

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) : $post_or_block_editor_context;

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/**

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* Filters the default array of categories for block types.

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*

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* @since 5.8.0

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*

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* @param array[] $block_categories Array of categories for block types.

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* @param WP_Block_Editor_Context $block_editor_context The current block editor context.

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*/

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$block_categories = apply_filters( 'block_categories_all', $block_categories, $block_editor_context );

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if ( ! empty( $block_editor_context->post ) ) {

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$post = $block_editor_context->post;

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/**

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* Filters the default array of categories for block types.

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*

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* @since 5.0.0

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* @deprecated 5.8.0 Use the {@see 'block_categories_all'} filter instead.

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*

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* @param array[] $block_categories Array of categories for block types.

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* @param WP_Post $post Post being loaded.

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*/

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$block_categories = apply_filters_deprecated( 'block_categories', array( $block_categories, $post ), '5.8.0', 'block_categories_all' );

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}

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return $block_categories;

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}

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/**

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* Gets the list of allowed block types to use in the block editor.

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*

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* @since 5.8.0

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*

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* @param WP_Block_Editor_Context $block_editor_context The current block editor context.

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*

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* @return bool|string[] Array of block type slugs, or boolean to enable/disable all.

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*/

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function get_allowed_block_types( $block_editor_context ) {

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$allowed_block_types = true;

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/**

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* Filters the allowed block types for all editor types.

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*

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* @since 5.8.0

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*

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* @param bool|string[] $allowed_block_types Array of block type slugs, or boolean to enable/disable all.

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* Default true (all registered block types supported).

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* @param WP_Block_Editor_Context $block_editor_context The current block editor context.

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*/

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$allowed_block_types = apply_filters( 'allowed_block_types_all', $allowed_block_types, $block_editor_context );

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if ( ! empty( $block_editor_context->post ) ) {

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$post = $block_editor_context->post;

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/**

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* Filters the allowed block types for the editor.

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*

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* @since 5.0.0

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* @deprecated 5.8.0 Use the {@see 'allowed_block_types_all'} filter instead.

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*

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* @param bool|string[] $allowed_block_types Array of block type slugs, or boolean to enable/disable all.

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* Default true (all registered block types supported)

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* @param WP_Post $post The post resource data.

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*/

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$allowed_block_types = apply_filters_deprecated( 'allowed_block_types', array( $allowed_block_types, $post ), '5.8.0', 'allowed_block_types_all' );

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}

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return $allowed_block_types;

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}

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/**

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* Returns the default block editor settings.

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*

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* @since 5.8.0

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*

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* @return array The default block editor settings.

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*/

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function get_default_block_editor_settings() {

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// Media settings.

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// wp_max_upload_size() can be expensive, so only call it when relevant for the current user.

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$max_upload_size = 0;

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if ( current_user_can( 'upload_files' ) ) {

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$max_upload_size = wp_max_upload_size();

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if ( ! $max_upload_size ) {

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$max_upload_size = 0;

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}

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}

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/** This filter is documented in wp-admin/includes/media.php */

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$image_size_names = apply_filters(

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'image_size_names_choose',

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array(

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'thumbnail' => __( 'Thumbnail' ),

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'medium' => __( 'Medium' ),

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'large' => __( 'Large' ),

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'full' => __( 'Full Size' ),

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)

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);

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$available_image_sizes = array();

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foreach ( $image_size_names as $image_size_slug => $image_size_name ) {

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$available_image_sizes[] = array(

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'slug' => $image_size_slug,

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'name' => $image_size_name,

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);

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}

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$default_size = get_option( 'image_default_size', 'large' );

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$image_default_size = in_array( $default_size, array_keys( $image_size_names ), true ) ? $default_size : 'large';

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$image_dimensions = array();

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$all_sizes = wp_get_registered_image_subsizes();

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foreach ( $available_image_sizes as $size ) {

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$key = $size['slug'];

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if ( isset( $all_sizes[ $key ] ) ) {

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$image_dimensions[ $key ] = $all_sizes[ $key ];

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}

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}

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// These styles are used if the "no theme styles" options is triggered or on

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// themes without their own editor styles.

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$default_editor_styles_file = ABSPATH . WPINC . '/css/dist/block-editor/default-editor-styles.css';

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static $default_editor_styles_file_contents = false;

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if ( ! $default_editor_styles_file_contents && file_exists( $default_editor_styles_file ) ) {

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$default_editor_styles_file_contents = file_get_contents( $default_editor_styles_file );

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}

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$default_editor_styles = array();

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if ( $default_editor_styles_file_contents ) {

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$default_editor_styles = array(

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array( 'css' => $default_editor_styles_file_contents ),

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);

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}

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$editor_settings = array(

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'alignWide' => get_theme_support( 'align-wide' ),

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'allowedBlockTypes' => true,

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'allowedMimeTypes' => get_allowed_mime_types(),

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'defaultEditorStyles' => $default_editor_styles,

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'blockCategories' => get_default_block_categories(),

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'isRTL' => is_rtl(),

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'imageDefaultSize' => $image_default_size,

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'imageDimensions' => $image_dimensions,

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'imageEditing' => true,

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'imageSizes' => $available_image_sizes,

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'maxUploadFileSize' => $max_upload_size,

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'__experimentalDashboardLink' => admin_url( '/' ),

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// The following flag is required to enable the new Gallery block format on the mobile apps in 5.9.

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'__unstableGalleryWithImageBlocks' => true,

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);

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$theme_settings = get_classic_theme_supports_block_editor_settings();

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foreach ( $theme_settings as $key => $value ) {

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$editor_settings[ $key ] = $value;

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}

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return $editor_settings;

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}

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/**

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* Returns the block editor settings needed to use the Legacy Widget block which

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* is not registered by default.

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*

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* @since 5.8.0

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*

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* @return array Settings to be used with get_block_editor_settings().

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*/

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function get_legacy_widget_block_editor_settings() {

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$editor_settings = array();

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/**

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* Filters the list of widget-type IDs that should **not** be offered by the

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* Legacy Widget block.

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*

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* Returning an empty array will make all widgets available.

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*

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* @since 5.8.0

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*

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* @param string[] $widgets An array of excluded widget-type IDs.

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*/

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$editor_settings['widgetTypesToHideFromLegacyWidgetBlock'] = apply_filters(

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'widget_types_to_hide_from_legacy_widget_block',

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array(

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'pages',

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'calendar',

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'archives',

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'media_audio',

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'media_image',

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'media_gallery',

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'media_video',

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'search',

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'text',

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'categories',

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'recent-posts',

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'recent-comments',

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'rss',

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'tag_cloud',

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'custom_html',

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'block',

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)

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);

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return $editor_settings;

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}

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/**

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* Collect the block editor assets that need to be loaded into the editor's iframe.

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*

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* @since 6.0.0

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* @access private

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*

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* @global WP_Styles $wp_styles The WP_Styles current instance.

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* @global WP_Scripts $wp_scripts The WP_Scripts current instance.

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*

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* @return array {

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* The block editor assets.

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*

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* @type string|false $styles String containing the HTML for styles.

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* @type string|false $scripts String containing the HTML for scripts.

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* }

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*/

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function _wp_get_iframed_editor_assets() {

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global $wp_styles, $wp_scripts;

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// Keep track of the styles and scripts instance to restore later.

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$current_wp_styles = $wp_styles;

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$current_wp_scripts = $wp_scripts;

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// Create new instances to collect the assets.

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$wp_styles = new WP_Styles();

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$wp_scripts = new WP_Scripts();

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/*

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* Register all currently registered styles and scripts. The actions that

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* follow enqueue assets, but don't necessarily register them.

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*/

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$wp_styles->registered = $current_wp_styles->registered;

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$wp_scripts->registered = $current_wp_scripts->registered;

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/*

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* We generally do not need reset styles for the iframed editor.

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* However, if it's a classic theme, margins will be added to every block,

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* which is reset specifically for list items, so classic themes rely on

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* these reset styles.

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*/

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$wp_styles->done =

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wp_theme_has_theme_json() ? array( 'wp-reset-editor-styles' ) : array();

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wp_enqueue_script( 'wp-polyfill' );

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// Enqueue the `editorStyle` handles for all core block, and dependencies.

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wp_enqueue_style( 'wp-edit-blocks' );

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if ( current_theme_supports( 'wp-block-styles' ) ) {

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wp_enqueue_style( 'wp-block-library-theme' );

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}

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/*

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* We don't want to load EDITOR scripts in the iframe, only enqueue

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* front-end assets for the content.

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*/

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add_filter( 'should_load_block_editor_scripts_and_styles', '__return_false' );

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do_action( 'enqueue_block_assets' );

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remove_filter( 'should_load_block_editor_scripts_and_styles', '__return_false' );

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$block_registry = WP_Block_Type_Registry::get_instance();

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/*

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* Additionally, do enqueue `editorStyle` assets for all blocks, which

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* contains editor-only styling for blocks (editor content).

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*/

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foreach ( $block_registry->get_all_registered() as $block_type ) {

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if ( isset( $block_type->editor_style_handles ) && is_array( $block_type->editor_style_handles ) ) {

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foreach ( $block_type->editor_style_handles as $style_handle ) {

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wp_enqueue_style( $style_handle );

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}

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}

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}

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/**

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* Remove the deprecated `print_emoji_styles` handler.

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* It avoids breaking style generation with a deprecation message.

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*/

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$has_emoji_styles = has_action( 'wp_print_styles', 'print_emoji_styles' );

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if ( $has_emoji_styles ) {

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remove_action( 'wp_print_styles', 'print_emoji_styles' );

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}

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ob_start();

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wp_print_styles();

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wp_print_font_faces();

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wp_print_font_faces_from_style_variations();

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$styles = ob_get_clean();

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if ( $has_emoji_styles ) {

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add_action( 'wp_print_styles', 'print_emoji_styles' );

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}

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ob_start();

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wp_print_head_scripts();

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wp_print_footer_scripts();

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$scripts = ob_get_clean();

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// Restore the original instances.

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$wp_styles = $current_wp_styles;

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$wp_scripts = $current_wp_scripts;

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return array(

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'styles' => $styles,

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'scripts' => $scripts,

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);

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}

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/**

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* Finds the first occurrence of a specific block in an array of blocks.

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*

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* @since 6.3.0

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*

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* @param array $blocks Array of blocks.

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* @param string $block_name Name of the block to find.

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* @return array Found block, or empty array if none found.

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*/

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function wp_get_first_block( $blocks, $block_name ) {

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foreach ( $blocks as $block ) {

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if ( $block_name === $block['blockName'] ) {

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return $block;

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}

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if ( ! empty( $block['innerBlocks'] ) ) {

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$found_block = wp_get_first_block( $block['innerBlocks'], $block_name );

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if ( ! empty( $found_block ) ) {

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return $found_block;

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}

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}

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}

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return array();

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}

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/**

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* Retrieves Post Content block attributes from the current post template.

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*

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* @since 6.3.0

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* @since 6.4.0 Return null if there is no post content block.

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* @access private

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*

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* @global int $post_ID

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*

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* @return array|null Post Content block attributes array or null if Post Content block doesn't exist.

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*/

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function wp_get_post_content_block_attributes() {

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global $post_ID;

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$is_block_theme = wp_is_block_theme();

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if ( ! $is_block_theme || ! $post_ID ) {

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return null;

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}

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$template_slug = get_page_template_slug( $post_ID );

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if ( ! $template_slug ) {

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$post_slug = 'singular';

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$page_slug = 'singular';

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$template_types = get_block_templates();

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foreach ( $template_types as $template_type ) {

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if ( 'page' === $template_type->slug ) {

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$page_slug = 'page';

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}

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if ( 'single' === $template_type->slug ) {

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$post_slug = 'single';

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}

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}

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$what_post_type = get_post_type( $post_ID );

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switch ( $what_post_type ) {

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case 'page':

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$template_slug = $page_slug;

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break;

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default:

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$template_slug = $post_slug;

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break;

[460] Fix | Delete

}

[461] Fix | Delete

}

[462] Fix | Delete

[463] Fix | Delete

$current_template = get_block_templates( array( 'slug__in' => array( $template_slug ) ) );

[464] Fix | Delete

[465] Fix | Delete

if ( ! empty( $current_template ) ) {

[466] Fix | Delete

$template_blocks = parse_blocks( $current_template[0]->content );

[467] Fix | Delete

$post_content_block = wp_get_first_block( $template_blocks, 'core/post-content' );

[468] Fix | Delete

[469] Fix | Delete

if ( isset( $post_content_block['attrs'] ) ) {

[470] Fix | Delete

return $post_content_block['attrs'];

[471] Fix | Delete

}

[472] Fix | Delete

}

[473] Fix | Delete

[474] Fix | Delete

return null;

[475] Fix | Delete

}

[476] Fix | Delete

[477] Fix | Delete

/**

[478] Fix | Delete

* Returns the contextualized block editor settings for a selected editor context.

[479] Fix | Delete

*

[480] Fix | Delete

* @since 5.8.0

[481] Fix | Delete

*

[482] Fix | Delete

* @param array $custom_settings Custom settings to use with the given editor type.

[483] Fix | Delete

* @param WP_Block_Editor_Context $block_editor_context The current block editor context.

[484] Fix | Delete

*

[485] Fix | Delete

* @return array The contextualized block editor settings.

[486] Fix | Delete

*/

[487] Fix | Delete

function get_block_editor_settings( array $custom_settings, $block_editor_context ) {

[488] Fix | Delete

$editor_settings = array_merge(

[489] Fix | Delete

get_default_block_editor_settings(),

[490] Fix | Delete

array(

[491] Fix | Delete

'allowedBlockTypes' => get_allowed_block_types( $block_editor_context ),

[492] Fix | Delete

'blockCategories' => get_block_categories( $block_editor_context ),

[493] Fix | Delete

),

[494] Fix | Delete

$custom_settings

[495] Fix | Delete

);

[496] Fix | Delete

[497] Fix | Delete

$editor_settings['__experimentalBlockBindingsSupportedAttributes'] = array();

[498] Fix | Delete

foreach ( array_keys( WP_Block_Type_Registry::get_instance()->get_all_registered() ) as $block_type ) {

[499] Fix | Delete