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Block Editor: Introduce block templates for classic themes.
With this patch, users will be able to create custom block based templates and assign them to specific pages/posts. Themes can also opt-out of this feature Props bernhard-reiter, carlomanf. Fixes #53176. git-svn-id: https://develop.svn.wordpress.org/trunk@51003 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
Riad Benguella
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<?php
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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 ) {
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return $override_slug;
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}
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if ( ! $override_slug ) {
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$override_slug = $slug;
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}
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// Template slugs must be unique within the same theme.
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// TODO - Figure out how to update this to work for a multi-theme
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// environment. Unfortunately using `get_the_terms` for the 'wp-theme'
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// term does not work in the case of new entities since is too early in
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// the process to have been saved to the entity. So for now we use the
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// currently activated theme for creation.
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$theme = wp_get_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->get_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( $query->get_posts() ) > 0 );
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$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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* Print the skip-link script & styles.
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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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* @return void
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*/
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function the_block_template_skip_link() {
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// Early exit if not an FSE theme.
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if ( ! current_theme_supports( 'block-templates' ) ) {
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return;
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}
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?>
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<?php
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/**
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* Print the skip-link styles.
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*/
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?>
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<style id="skip-link-styles">
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.skip-link.screen-reader-text {
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border: 0;
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clip: rect(1px,1px,1px,1px);
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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: auto !important;
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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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</style>
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<?php
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/**
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* Print the skip-link script.
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*/
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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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parentEl,
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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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// Get the site wrapper.
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// The skip-link will be injected in the beginning of it.
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parentEl = document.querySelector( '.wp-site-blocks' ) || document.body,
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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.href = '#' + skipLinkTargetID;
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skipLink.innerHTML = '<?php esc_html_e( 'Skip to content' ); ?>';
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// Inject the skip link.
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parentEl.insertAdjacentElement( 'afterbegin', skipLink );
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}() );
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</script>
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<?php
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}
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// By default, themes support block templates.
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add_theme_support( 'block-templates' );
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