<?php

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/**

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* Sets a custom slug when creating auto-draft template parts.

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*

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* This is only needed for auto-drafts created by the regular WP editor.

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* If this page is to be removed, this will not be necessary.

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*

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* @since 5.9.0

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*

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* @param int $post_id Post ID.

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*/

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function wp_set_unique_slug_on_create_template_part( $post_id ) {

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$post = get_post( $post_id );

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if ( 'auto-draft' !== $post->post_status ) {

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return;

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}

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if ( ! $post->post_name ) {

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wp_update_post(

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array(

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'ID' => $post_id,

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'post_name' => 'custom_slug_' . uniqid(),

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)

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);

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}

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$terms = get_the_terms( $post_id, 'wp_theme' );

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if ( ! is_array( $terms ) || ! count( $terms ) ) {

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wp_set_post_terms( $post_id, get_stylesheet(), 'wp_theme' );

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}

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}

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/**

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* Generates a unique slug for templates.

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*

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* @access private

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* @since 5.8.0

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*

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* @param string $override_slug The filtered value of the slug (starts as `null` from apply_filter).

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* @param string $slug The original/un-filtered slug (post_name).

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* @param int $post_id Post ID.

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* @param string $post_status No uniqueness checks are made if the post is still draft or pending.

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* @param string $post_type Post type.

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* @return string The original, desired slug.

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*/

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function wp_filter_wp_template_unique_post_slug( $override_slug, $slug, $post_id, $post_status, $post_type ) {

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if ( 'wp_template' !== $post_type && 'wp_template_part' !== $post_type ) {

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return $override_slug;

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}

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if ( ! $override_slug ) {

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$override_slug = $slug;

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}

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/*

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* Template slugs must be unique within the same theme.

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* TODO - Figure out how to update this to work for a multi-theme environment.

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* Unfortunately using `get_the_terms()` for the 'wp-theme' term does not work

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* in the case of new entities since is too early in the process to have been saved

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* to the entity. So for now we use the currently activated theme for creation.

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*/

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$theme = get_stylesheet();

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$terms = get_the_terms( $post_id, 'wp_theme' );

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if ( $terms && ! is_wp_error( $terms ) ) {

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$theme = $terms[0]->name;

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}

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$check_query_args = array(

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'post_name__in' => array( $override_slug ),

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'post_type' => $post_type,

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'posts_per_page' => 1,

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'no_found_rows' => true,

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'post__not_in' => array( $post_id ),

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'tax_query' => array(

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array(

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'taxonomy' => 'wp_theme',

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'field' => 'name',

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'terms' => $theme,

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),

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),

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);

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$check_query = new WP_Query( $check_query_args );

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$posts = $check_query->posts;

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if ( count( $posts ) > 0 ) {

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$suffix = 2;

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do {

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$query_args = $check_query_args;

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$alt_post_name = _truncate_post_slug( $override_slug, 200 - ( strlen( $suffix ) + 1 ) ) . "-$suffix";

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$query_args['post_name__in'] = array( $alt_post_name );

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$query = new WP_Query( $query_args );

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++$suffix;

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} while ( count( $query->posts ) > 0 );

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$override_slug = $alt_post_name;

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}

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return $override_slug;

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}

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/**

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* Enqueues the skip-link script & styles.

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*

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* @access private

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* @since 6.4.0

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*

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* @global string $_wp_current_template_content

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*/

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function wp_enqueue_block_template_skip_link() {

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global $_wp_current_template_content;

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// Back-compat for plugins that disable functionality by unhooking this action.

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if ( ! has_action( 'wp_footer', 'the_block_template_skip_link' ) ) {

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return;

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}

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remove_action( 'wp_footer', 'the_block_template_skip_link' );

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// Early exit if not a block theme.

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if ( ! current_theme_supports( 'block-templates' ) ) {

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return;

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}

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// Early exit if not a block template.

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if ( ! $_wp_current_template_content ) {

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return;

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}

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$skip_link_styles = '

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.skip-link.screen-reader-text {

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border: 0;

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clip-path: inset(50%);

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height: 1px;

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margin: -1px;

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overflow: hidden;

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padding: 0;

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position: absolute !important;

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width: 1px;

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word-wrap: normal !important;

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}

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.skip-link.screen-reader-text:focus {

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background-color: #eee;

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clip-path: none;

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color: #444;

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display: block;

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font-size: 1em;

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height: auto;

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left: 5px;

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line-height: normal;

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padding: 15px 23px 14px;

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text-decoration: none;

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top: 5px;

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width: auto;

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z-index: 100000;

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}';

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$handle = 'wp-block-template-skip-link';

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/**

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* Print the skip-link styles.

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*/

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wp_register_style( $handle, false );

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wp_add_inline_style( $handle, $skip_link_styles );

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wp_enqueue_style( $handle );

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/**

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* Enqueue the skip-link script.

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*/

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ob_start();

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?>

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<script>

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( function() {

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var skipLinkTarget = document.querySelector( 'main' ),

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sibling,

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skipLinkTargetID,

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skipLink;

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// Early exit if a skip-link target can't be located.

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if ( ! skipLinkTarget ) {

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return;

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}

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/*

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* Get the site wrapper.

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* The skip-link will be injected in the beginning of it.

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*/

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sibling = document.querySelector( '.wp-site-blocks' );

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// Early exit if the root element was not found.

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if ( ! sibling ) {

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return;

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}

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// Get the skip-link target's ID, and generate one if it doesn't exist.

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skipLinkTargetID = skipLinkTarget.id;

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if ( ! skipLinkTargetID ) {

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skipLinkTargetID = 'wp--skip-link--target';

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skipLinkTarget.id = skipLinkTargetID;

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}

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// Create the skip link.

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skipLink = document.createElement( 'a' );

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skipLink.classList.add( 'skip-link', 'screen-reader-text' );

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skipLink.id = 'wp-skip-link';

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skipLink.href = '#' + skipLinkTargetID;

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skipLink.innerText = '<?php /* translators: Hidden accessibility text. Do not use HTML entities (&nbsp;, etc.). */ esc_html_e( 'Skip to content' ); ?>';

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// Inject the skip link.

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sibling.parentElement.insertBefore( skipLink, sibling );

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}() );

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</script>

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<?php

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$skip_link_script = wp_remove_surrounding_empty_script_tags( ob_get_clean() );

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$script_handle = 'wp-block-template-skip-link';

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wp_register_script( $script_handle, false, array(), false, array( 'in_footer' => true ) );

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wp_add_inline_script( $script_handle, $skip_link_script );

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wp_enqueue_script( $script_handle );

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}

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/**

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* Enables the block templates (editor mode) for themes with theme.json by default.

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*

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* @access private

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* @since 5.8.0

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*/

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function wp_enable_block_templates() {

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if ( wp_is_block_theme() || wp_theme_has_theme_json() ) {

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add_theme_support( 'block-templates' );

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}

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}

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