129 lines
3.9 KiB
PHP
129 lines
3.9 KiB
PHP
<?php
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/**
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* Server-side rendering of the `core/post-template` block.
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*
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* @package WordPress
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*/
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/**
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* Determines whether a block list contains a block that uses the featured image.
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*
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* @param WP_Block_List $inner_blocks Inner block instance.
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*
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* @return bool Whether the block list contains a block that uses the featured image.
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*/
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function block_core_post_template_uses_featured_image( $inner_blocks ) {
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foreach ( $inner_blocks as $block ) {
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if ( 'core/post-featured-image' === $block->name ) {
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return true;
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}
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if (
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'core/cover' === $block->name &&
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! empty( $block->attributes['useFeaturedImage'] )
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) {
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return true;
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}
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if ( $block->inner_blocks && block_core_post_template_uses_featured_image( $block->inner_blocks ) ) {
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return true;
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}
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}
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return false;
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}
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/**
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* Renders the `core/post-template` block on the server.
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*
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* @param array $attributes Block attributes.
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* @param string $content Block default content.
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* @param WP_Block $block Block instance.
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*
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* @return string Returns the output of the query, structured using the layout defined by the block's inner blocks.
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*/
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function render_block_core_post_template( $attributes, $content, $block ) {
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$page_key = isset( $block->context['queryId'] ) ? 'query-' . $block->context['queryId'] . '-page' : 'query-page';
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$page = empty( $_GET[ $page_key ] ) ? 1 : (int) $_GET[ $page_key ];
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// Use global query if needed.
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$use_global_query = ( isset( $block->context['query']['inherit'] ) && $block->context['query']['inherit'] );
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if ( $use_global_query ) {
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global $wp_query;
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$query = clone $wp_query;
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} else {
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$query_args = build_query_vars_from_query_block( $block, $page );
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$query = new WP_Query( $query_args );
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}
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if ( ! $query->have_posts() ) {
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return '';
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}
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if ( block_core_post_template_uses_featured_image( $block->inner_blocks ) ) {
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update_post_thumbnail_cache( $query );
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}
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$classnames = '';
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if ( isset( $block->context['displayLayout'] ) && isset( $block->context['query'] ) ) {
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if ( isset( $block->context['displayLayout']['type'] ) && 'flex' === $block->context['displayLayout']['type'] ) {
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$classnames = "is-flex-container columns-{$block->context['displayLayout']['columns']}";
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}
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}
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$wrapper_attributes = get_block_wrapper_attributes( array( 'class' => $classnames ) );
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$content = '';
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while ( $query->have_posts() ) {
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$query->the_post();
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// Get an instance of the current Post Template block.
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$block_instance = $block->parsed_block;
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// Set the block name to one that does not correspond to an existing registered block.
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// This ensures that for the inner instances of the Post Template block, we do not render any block supports.
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$block_instance['blockName'] = 'core/null';
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// Render the inner blocks of the Post Template block with `dynamic` set to `false` to prevent calling
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// `render_callback` and ensure that no wrapper markup is included.
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$block_content = (
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new WP_Block(
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$block_instance,
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array(
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'postType' => get_post_type(),
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'postId' => get_the_ID(),
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)
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)
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)->render( array( 'dynamic' => false ) );
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// Wrap the render inner blocks in a `li` element with the appropriate post classes.
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$post_classes = implode( ' ', get_post_class( 'wp-block-post' ) );
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$content .= '<li class="' . esc_attr( $post_classes ) . '">' . $block_content . '</li>';
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}
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/*
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* Use this function to restore the context of the template tags
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* from a secondary query loop back to the main query loop.
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* Since we use two custom loops, it's safest to always restore.
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*/
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wp_reset_postdata();
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return sprintf(
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'<ul %1$s>%2$s</ul>',
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$wrapper_attributes,
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$content
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);
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}
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/**
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* Registers the `core/post-template` block on the server.
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*/
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function register_block_core_post_template() {
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register_block_type_from_metadata(
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__DIR__ . '/post-template',
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array(
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'render_callback' => 'render_block_core_post_template',
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'skip_inner_blocks' => true,
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)
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);
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}
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add_action( 'init', 'register_block_core_post_template' );
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