Edit File by line

<?php

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/**

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* The block editor page.

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* @since 5.0.0

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* @package WordPress

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* @subpackage Administration

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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 Global post type.

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* @global WP_Post_Type $post_type_object Global post type object.

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* @global WP_Post $post Global post object.

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* @global string $title The title of the current screen.

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* @global array $wp_meta_boxes Global meta box state.

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global $post_type, $post_type_object, $post, $title, $wp_meta_boxes;

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$block_editor_context = new WP_Block_Editor_Context( array( 'post' => $post ) );

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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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// Default to is-fullscreen-mode to avoid jumps in the UI.

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add_filter(

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'admin_body_class',

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static function ( $classes ) {

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return "$classes is-fullscreen-mode";

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}

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);

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* Emoji replacement is disabled for now, until it plays nicely with React.

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remove_action( 'admin_print_scripts', 'print_emoji_detection_script' );

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* Block editor implements its own Options menu for toggling Document Panels.

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add_filter( 'screen_options_show_screen', '__return_false' );

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wp_enqueue_script( 'heartbeat' );

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wp_enqueue_script( 'wp-edit-post' );

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$rest_path = rest_get_route_for_post( $post );

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// Preload common data.

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$preload_paths = array(

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'/wp/v2/types?context=view',

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'/wp/v2/taxonomies?context=view',

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add_query_arg(

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array(

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'context' => 'edit',

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'per_page' => -1,

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rest_get_route_for_post_type_items( 'wp_block' )

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add_query_arg( 'context', 'edit', $rest_path ),

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sprintf( '/wp/v2/types/%s?context=edit', $post_type ),

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'/wp/v2/users/me',

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array( rest_get_route_for_post_type_items( 'attachment' ), 'OPTIONS' ),

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array( rest_get_route_for_post_type_items( 'page' ), 'OPTIONS' ),

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array( rest_get_route_for_post_type_items( 'wp_block' ), 'OPTIONS' ),

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array( rest_get_route_for_post_type_items( 'wp_template' ), 'OPTIONS' ),

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sprintf( '%s/autosaves?context=edit', $rest_path ),

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'/wp/v2/settings',

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array( '/wp/v2/settings', 'OPTIONS' ),

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'/wp/v2/global-styles/themes/' . get_stylesheet(),

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'/wp/v2/themes?context=edit&status=active',

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'/wp/v2/global-styles/' . WP_Theme_JSON_Resolver::get_user_global_styles_post_id() . '?context=edit',

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);

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block_editor_rest_api_preload( $preload_paths, $block_editor_context );

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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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* 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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$initial_edits = array();

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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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if ( post_type_supports( $post->post_type, 'title' ) ) {

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$initial_edits['title'] = $post->post_title;

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}

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if ( post_type_supports( $post->post_type, 'editor' ) ) {

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$initial_edits['content'] = $post->post_content;

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}

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if ( post_type_supports( $post->post_type, 'excerpt' ) ) {

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$initial_edits['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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'meta-box-loader-nonce' => wp_create_nonce( 'meta-box-loader' ),

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$meta_box_url

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);

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wp_add_inline_script(

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'wp-editor',

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sprintf( 'var _wpMetaBoxUrl = %s;', wp_json_encode( $meta_box_url ) ),

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'before'

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);

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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_replace(

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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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$available_templates

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) : $available_templates;

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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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$locked = false;

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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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'avatar' => get_avatar_url( $user_id, array( 'size' => 128 ) ),

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'name' => $user->display_name,

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);

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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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if ( $active_post_lock ) {

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$active_post_lock = esc_attr( implode( ':', $active_post_lock ) );

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}

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$lock_details = array(

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'isLocked' => false,

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'activePostLock' => $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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* @since 5.0.0

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* @since 5.8.0 Changed the default placeholder text.

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* @param string $text Placeholder text. Default 'Type / to choose a block'.

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* @param WP_Post $post Post object.

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$body_placeholder = apply_filters( 'write_your_story', __( 'Type / to choose a block' ), $post );

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$editor_settings = array(

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'availableTemplates' => $available_templates,

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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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'autosaveInterval' => AUTOSAVE_INTERVAL,

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'richEditingEnabled' => user_can_richedit(),

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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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'supportsLayout' => wp_theme_has_theme_json(),

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'supportsTemplateMode' => current_theme_supports( 'block-templates' ),

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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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// Add additional back-compat patterns registered by `current_screen` et al.

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$editor_settings['__experimentalAdditionalBlockPatterns'] = WP_Block_Patterns_Registry::get_instance()->get_all_registered( true );

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$editor_settings['__experimentalAdditionalBlockPatternCategories'] = WP_Block_Pattern_Categories_Registry::get_instance()->get_all_registered( true );

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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 ( ! 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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if ( wp_is_block_theme() && $editor_settings['supportsTemplateMode'] ) {

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$editor_settings['defaultTemplatePartAreas'] = get_allowed_block_template_part_areas();

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}

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/**

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* Scripts

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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_tinymce_inline_scripts();

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wp_enqueue_editor();

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/**

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* Styles

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wp_enqueue_style( 'wp-edit-post' );

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/**

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* Fires after block assets have been enqueued for the editing interface.

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* Call `add_action` on any hook before 'admin_enqueue_scripts'.

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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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* @since 5.0.0

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do_action( 'enqueue_block_editor_assets' );

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// In order to duplicate classic meta box behavior, 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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$editor_settings = get_block_editor_settings( $editor_settings, $block_editor_context );

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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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if ( (int) get_option( 'page_for_posts' ) === $post->ID ) {

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add_action( 'admin_enqueue_scripts', '_wp_block_editor_posts_page_notice' );

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}

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require_once ABSPATH . 'wp-admin/admin-header.php';

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<?php the_block_editor_meta_boxes(); ?>

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</div>

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<?php // JavaScript is disabled. ?>

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<?php

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if ( file_exists( WP_PLUGIN_DIR . '/classic-editor/classic-editor.php' ) ) {

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// If Classic Editor is already installed, provide a link to activate the plugin.

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$installed = true;

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$plugin_activate_url = wp_nonce_url( 'plugins.php?action=activate&plugin=classic-editor/classic-editor.php', 'activate-plugin_classic-editor/classic-editor.php' );

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$message = sprintf(

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/* translators: %s: Link to activate the Classic Editor plugin. */

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__( 'The block editor requires JavaScript. Please enable JavaScript in your browser settings, or activate the <a href="%s">Classic Editor plugin</a>.' ),

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esc_url( $plugin_activate_url )

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);

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} else {

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// If Classic Editor is not installed, provide a link to install it.

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$installed = false;

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$plugin_install_url = wp_nonce_url( self_admin_url( 'update.php?action=install-plugin&plugin=classic-editor' ), 'install-plugin_classic-editor' );

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$message = sprintf(

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/* translators: %s: Link to install the Classic Editor plugin. */

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__( 'The block editor requires JavaScript. Please enable JavaScript in your browser settings, or install the <a href="%s">Classic Editor plugin</a>.' ),

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esc_url( $plugin_install_url )

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);

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}

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/**

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* Filters the message displayed in the block editor interface when JavaScript is

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* not enabled in the browser.

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* @since 5.0.3

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* @since 6.4.0 Added `$installed` parameter.

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* @param string $message The message being displayed.

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* @param WP_Post $post The post being edited.

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* @param bool $installed Whether the classic editor is installed.

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$message = apply_filters( 'block_editor_no_javascript_message', $message, $post, $installed );

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wp_admin_notice(

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$message,

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array(

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'type' => 'error',

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)

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);

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</div>

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</div>

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