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Some plugins remove the Custom Fields meta box, particularly when they provide functionality that replaces it. The block editor would correctly not display this meta box in these circumstances, but it still showed the option to display or hide it. Props pento, noisysocks. See #45282. Built from https://develop.svn.wordpress.org/branches/5.0@43885 git-svn-id: http://core.svn.wordpress.org/branches/5.0@43714 1a063a9b-81f0-0310-95a4-ce76da25c4cd
397 lines
12 KiB
PHP
397 lines
12 KiB
PHP
<?php
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/**
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* The Block Editor page.
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*
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* @since 5.0.0
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*
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* @package WordPress
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* @subpackage Administration
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*/
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// don't load directly
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if ( ! defined( 'ABSPATH' ) ) {
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die( '-1' );
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}
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/**
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* @global string $post_type
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* @global WP_Post_Type $post_type_object
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* @global WP_Post $post
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* @global string $title
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* @global array $editor_styles
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* @global array $wp_meta_boxes
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*/
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global $post_type, $post_type_object, $post, $title, $editor_styles, $wp_meta_boxes;
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if ( ! empty( $post_type_object ) ) {
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$title = $post_type_object->labels->edit_item;
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}
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// Flag that we're loading the block editor.
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$current_screen = get_current_screen();
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$current_screen->is_block_editor( true );
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/*
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* Emoji replacement is disabled for now, until it plays nicely with React.
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*/
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remove_action( 'admin_print_scripts', 'print_emoji_detection_script' );
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wp_enqueue_script( 'heartbeat' );
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wp_enqueue_script( 'wp-edit-post' );
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wp_enqueue_script( 'wp-format-library' );
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$rest_base = ! empty( $post_type_object->rest_base ) ? $post_type_object->rest_base : $post_type_object->name;
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// Preload common data.
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$preload_paths = array(
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'/',
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'/wp/v2/types?context=edit',
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'/wp/v2/taxonomies?per_page=-1&context=edit',
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'/wp/v2/themes?status=active',
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sprintf( '/wp/v2/%s/%s?context=edit', $rest_base, $post->ID ),
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sprintf( '/wp/v2/types/%s?context=edit', $post_type ),
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sprintf( '/wp/v2/users/me?post_type=%s&context=edit', $post_type ),
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array( '/wp/v2/media', 'OPTIONS' ),
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);
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/**
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* Preload common data by specifying an array of REST API paths that will be preloaded.
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*
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* Filters the array of paths that will be preloaded.
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*
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* @since 5.0.0
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*
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* @param array $preload_paths Array of paths to preload.
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* @param object $post The post resource data.
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*/
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$preload_paths = apply_filters( 'block_editor_preload_paths', $preload_paths, $post );
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/*
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* Ensure the global $post remains the same after API data is preloaded.
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* Because API preloading can call the_content and other filters, plugins
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* can unexpectedly modify $post.
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*/
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$backup_global_post = $post;
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$preload_data = array_reduce(
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$preload_paths,
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'rest_preload_api_request',
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array()
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);
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// Restore the global $post as it was before API preloading.
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$post = $backup_global_post;
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wp_add_inline_script(
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'wp-api-fetch',
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sprintf( 'wp.apiFetch.use( wp.apiFetch.createPreloadingMiddleware( %s ) );', wp_json_encode( $preload_data ) ),
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'after'
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);
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wp_add_inline_script(
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'wp-blocks',
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sprintf( 'wp.blocks.setCategories( %s );', wp_json_encode( get_block_categories( $post ) ) ),
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'after'
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);
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/*
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* Assign initial edits, if applicable. These are not initially assigned to the persisted post,
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* but should be included in its save payload.
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*/
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$initial_edits = null;
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$is_new_post = false;
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if ( 'auto-draft' === $post->post_status ) {
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$is_new_post = true;
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// Override "(Auto Draft)" new post default title with empty string, or filtered value.
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$initial_edits = array(
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'title' => $post->post_title,
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'content' => $post->post_content,
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'excerpt' => $post->post_excerpt,
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);
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}
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// Preload server-registered block schemas.
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wp_add_inline_script(
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'wp-blocks',
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'wp.blocks.unstable__bootstrapServerSideBlockDefinitions(' . wp_json_encode( get_block_editor_server_block_settings() ) . ');'
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);
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// Get admin url for handling meta boxes.
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$meta_box_url = admin_url( 'post.php' );
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$meta_box_url = add_query_arg(
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array(
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'post' => $post->ID,
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'action' => 'edit',
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'meta-box-loader' => true,
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'_wpnonce' => wp_create_nonce( 'meta-box-loader' ),
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),
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$meta_box_url
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);
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wp_localize_script( 'wp-editor', '_wpMetaBoxUrl', $meta_box_url );
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/*
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* Initialize the editor.
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*/
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$align_wide = get_theme_support( 'align-wide' );
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$color_palette = current( (array) get_theme_support( 'editor-color-palette' ) );
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$font_sizes = current( (array) get_theme_support( 'editor-font-sizes' ) );
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/**
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* Filters the allowed block types for the editor, defaulting to true (all
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* block types supported).
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*
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* @since 5.0.0
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*
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* @param bool|array $allowed_block_types Array of block type slugs, or
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* boolean to enable/disable all.
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* @param object $post The post resource data.
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*/
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$allowed_block_types = apply_filters( 'allowed_block_types', true, $post );
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// Get all available templates for the post/page attributes meta-box.
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// The "Default template" array element should only be added if the array is
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// not empty so we do not trigger the template select element without any options
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// besides the default value.
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$available_templates = wp_get_theme()->get_page_templates( get_post( $post->ID ) );
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$available_templates = ! empty( $available_templates ) ? array_merge(
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array(
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/** This filter is documented in wp-admin/includes/meta-boxes.php */
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'' => apply_filters( 'default_page_template_title', __( 'Default template' ), 'rest-api' ),
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),
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$available_templates
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) : $available_templates;
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// Media settings.
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$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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// Editor Styles.
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$styles = array(
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array(
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'css' => file_get_contents(
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ABSPATH . WPINC . '/css/dist/editor/editor-styles.css'
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),
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),
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);
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if ( $editor_styles && current_theme_supports( 'editor-styles' ) ) {
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foreach ( $editor_styles as $style ) {
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if ( preg_match( '~^(https?:)?//~', $style ) ) {
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$response = wp_remote_get( $style );
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if ( ! is_wp_error( $response ) ) {
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$styles[] = array(
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'css' => wp_remote_retrieve_body( $response ),
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);
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}
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} else {
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$file = get_theme_file_path( $style );
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$styles[] = array(
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'css' => file_get_contents( get_theme_file_path( $style ) ),
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'baseURL' => get_theme_file_uri( $style ),
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);
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}
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}
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}
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// Image sizes.
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/** This filter is documented in wp-admin/includes/media.php */
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$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' => $image_size_name,
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);
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}
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// Lock settings.
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$user_id = wp_check_post_lock( $post->ID );
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if ( $user_id ) {
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/** This filter is documented in wp-admin/includes/post.php */
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if ( apply_filters( 'show_post_locked_dialog', true, $post, $user_id ) ) {
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$locked = true;
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}
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$user_details = null;
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if ( $locked ) {
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$user = get_userdata( $user_id );
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$user_details = array(
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'name' => $user->display_name,
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);
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$avatar = get_avatar_url( $user_id, array( 'size' => 64 ) );
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}
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$lock_details = array(
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'isLocked' => $locked,
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'user' => $user_details,
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);
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} else {
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// Lock the post.
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$active_post_lock = wp_set_post_lock( $post->ID );
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$lock_details = array(
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'isLocked' => false,
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'activePostLock' => esc_attr( implode( ':', $active_post_lock ) ),
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);
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}
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/**
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* Filters the body placeholder text.
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*
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* @since 5.0.0
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*
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* @param string $text Placeholder text. Default 'Start writing or type / to choose a block'.
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* @param WP_Post $post Post object.
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*/
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$body_placeholder = apply_filters( 'write_your_story', __( 'Start writing or type / to choose a block' ), $post );
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$editor_settings = array(
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'alignWide' => $align_wide,
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'availableTemplates' => $available_templates,
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'allowedBlockTypes' => $allowed_block_types,
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'disableCustomColors' => get_theme_support( 'disable-custom-colors' ),
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'disableCustomFontSizes' => get_theme_support( 'disable-custom-font-sizes' ),
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'disablePostFormats' => ! current_theme_supports( 'post-formats' ),
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/** This filter is documented in wp-admin/edit-form-advanced.php */
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'titlePlaceholder' => apply_filters( 'enter_title_here', __( 'Add title' ), $post ),
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'bodyPlaceholder' => $body_placeholder,
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'isRTL' => is_rtl(),
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'autosaveInterval' => 10,
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'maxUploadFileSize' => $max_upload_size,
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'allowedMimeTypes' => get_allowed_mime_types(),
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'styles' => $styles,
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'imageSizes' => $available_image_sizes,
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'postLock' => $lock_details,
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'postLockUtils' => array(
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'nonce' => wp_create_nonce( 'lock-post_' . $post->ID ),
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'unlockNonce' => wp_create_nonce( 'update-post_' . $post->ID ),
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'ajaxUrl' => admin_url( 'admin-ajax.php' ),
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),
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// Whether or not to load the 'postcustom' meta box is stored as a user meta
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// field so that we're not always loading its assets.
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'enableCustomFields' => (bool) get_user_meta( get_current_user_id(), 'enable_custom_fields', true ),
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);
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$autosave = wp_get_post_autosave( $post_ID );
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if ( $autosave ) {
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if ( mysql2date( 'U', $autosave->post_modified_gmt, false ) > mysql2date( 'U', $post->post_modified_gmt, false ) ) {
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$editor_settings['autosave'] = array(
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'editLink' => get_edit_post_link( $autosave->ID ),
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);
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} else {
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wp_delete_post_revision( $autosave->ID );
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}
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}
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if ( false !== $color_palette ) {
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$editor_settings['colors'] = $color_palette;
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}
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if ( ! empty( $font_sizes ) ) {
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$editor_settings['fontSizes'] = $font_sizes;
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}
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if ( ! empty( $post_type_object->template ) ) {
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$editor_settings['template'] = $post_type_object->template;
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$editor_settings['templateLock'] = ! empty( $post_type_object->template_lock ) ? $post_type_object->template_lock : false;
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}
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// If there's no template set on a new post, use the post format, instead.
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if ( $is_new_post && ! isset( $editor_settings['template'] ) && 'post' === $post->post_type ) {
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$post_format = get_post_format( $post );
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if ( in_array( $post_format, array( 'audio', 'gallery', 'image', 'quote', 'video' ), true ) ) {
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$editor_settings['template'] = array( array( "core/$post_format" ) );
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}
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}
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/**
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* Scripts
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*/
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wp_enqueue_media(
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array(
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'post' => $post->ID,
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)
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);
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wp_enqueue_editor();
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/**
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* Styles
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*/
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wp_enqueue_style( 'wp-edit-post' );
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wp_enqueue_style( 'wp-format-library' );
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/**
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* Fires after block assets have been enqueued for the editing interface.
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*
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* Call `add_action` on any hook before 'admin_enqueue_scripts'.
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*
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* In the function call you supply, simply use `wp_enqueue_script` and
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* `wp_enqueue_style` to add your functionality to the block editor.
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*
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* @since 5.0.0
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*/
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do_action( 'enqueue_block_editor_assets' );
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// In order to duplicate classic meta box behaviour, we need to run the classic meta box actions.
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require_once( ABSPATH . 'wp-admin/includes/meta-boxes.php' );
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register_and_do_post_meta_boxes( $post );
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// Check if the Custom Fields meta box has been removed at some point.
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$core_meta_boxes = $wp_meta_boxes[ $current_screen->id ]['normal']['core'];
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if ( ! isset( $core_meta_boxes['postcustom'] ) || ! $core_meta_boxes['postcustom'] ) {
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unset( $editor_settings['enableCustomFields'] );
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}
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/**
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* Filters the settings to pass to the block editor.
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*
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* @since 5.0.0
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*
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* @param array $editor_settings Default editor settings.
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* @param WP_Post $post Post being edited.
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*/
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$editor_settings = apply_filters( 'block_editor_settings', $editor_settings, $post );
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$init_script = <<<JS
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( function() {
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window._wpLoadBlockEditor = new Promise( function( resolve ) {
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wp.domReady( function() {
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resolve( wp.editPost.initializeEditor( 'editor', "%s", %d, %s, %s ) );
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} );
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} );
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} )();
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JS;
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$script = sprintf(
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$init_script,
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$post->post_type,
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$post->ID,
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wp_json_encode( $editor_settings ),
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wp_json_encode( $initial_edits )
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);
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wp_add_inline_script( 'wp-edit-post', $script );
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require_once( ABSPATH . 'wp-admin/admin-header.php' );
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?>
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<div class="block-editor">
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<h1 class="screen-reader-text"><?php echo esc_html( $post_type_object->labels->edit_item ); ?></h1>
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<div id="editor" class="block-editor__container"></div>
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<div id="metaboxes" class="hidden">
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<?php the_block_editor_meta_boxes(); ?>
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</div>
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</div>
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