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<title>[59101] trunk: Block Hooks: `apply_block_hooks_to_content` in Patterns, Templates.</title>
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<dt style="float: left; width: 6em; font-weight: bold">Revision</dt> <dd><a style="font-weight: bold" href="https://core.trac.wordpress.org/changeset/59101">59101</a><script type="application/ld+json">{"@context":"http://schema.org","@type":"EmailMessage","description":"Review this Commit","action":{"@type":"ViewAction","url":"https://core.trac.wordpress.org/changeset/59101","name":"Review Commit"}}</script></dd>
<dt style="float: left; width: 6em; font-weight: bold">Author</dt> <dd>Bernhard Reiter</dd>
<dt style="float: left; width: 6em; font-weight: bold">Date</dt> <dd>2024-09-27 09:18:46 +0000 (Fri, 27 Sep 2024)</dd>
</dl>
<pre style='padding-left: 1em; margin: 2em 0; border-left: 2px solid #ccc; line-height: 1.25; font-size: 105%; font-family: sans-serif'>Block Hooks: `apply_block_hooks_to_content` in Patterns, Templates.
In the Patterns registry, use `apply_block_hooks_to_content` (introduced in <a href="https://core.trac.wordpress.org/changeset/58291">[58291]</a>) instead of the `WP_Block_Patterns_Registry` class's private `get_content` method. (The latter is removed as part of this changeset.)
In a similar vein, use `apply_block_hooks_to_content` in the `_build_block_template_result_from_file` and `_build_block_template_result_from_post` functions, respectively.
For that to work, `apply_block_hooks_to_content` is amended to inject the `theme` attribute into Template Part blocks, even if no hooked blocks are present.
This kind of centralization is required as a preparation for <a href="https://core.trac.wordpress.org/ticket/61902">#61902</a>.
Props bernhard-reiter, jonsurrell.
See <a href="https://core.trac.wordpress.org/ticket/61902">#61902</a>.</pre>
<h3>Modified Paths</h3>
<ul>
<li><a href="#trunksrcwpincludesblocktemplateutilsphp">trunk/src/wp-includes/block-template-utils.php</a></li>
<li><a href="#trunksrcwpincludesblocksphp">trunk/src/wp-includes/blocks.php</a></li>
<li><a href="#trunksrcwpincludesclasswpblockpatternsregistryphp">trunk/src/wp-includes/class-wp-block-patterns-registry.php</a></li>
</ul>
<h3>Added Paths</h3>
<ul>
<li><a href="#trunktestsphpunittestsblocksapplyBlockHooksToContentphp">trunk/tests/phpunit/tests/blocks/applyBlockHooksToContent.php</a></li>
</ul>
</div>
<div id="patch">
<h3>Diff</h3>
<a id="trunksrcwpincludesblocktemplateutilsphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/wp-includes/block-template-utils.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-includes/block-template-utils.php 2024-09-27 05:56:50 UTC (rev 59100)
+++ trunk/src/wp-includes/block-template-utils.php 2024-09-27 09:18:46 UTC (rev 59101)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -615,17 +615,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> $template->area = $template_file['area'];
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- $hooked_blocks = get_hooked_blocks();
- $has_hooked_blocks = ! empty( $hooked_blocks ) || has_filter( 'hooked_block_types' );
- $before_block_visitor = '_inject_theme_attribute_in_template_part_block';
- $after_block_visitor = null;
-
- if ( $has_hooked_blocks ) {
- $before_block_visitor = make_before_block_visitor( $hooked_blocks, $template, 'insert_hooked_blocks_and_set_ignored_hooked_blocks_metadata' );
- $after_block_visitor = make_after_block_visitor( $hooked_blocks, $template, 'insert_hooked_blocks_and_set_ignored_hooked_blocks_metadata' );
- }
-
- if ( 'wp_template_part' === $template->type && $has_hooked_blocks ) {
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ if ( 'wp_template_part' === $template->type ) {
</ins><span class="cx" style="display: block; padding: 0 10px"> /*
</span><span class="cx" style="display: block; padding: 0 10px"> * In order for hooked blocks to be inserted at positions first_child and last_child in a template part,
</span><span class="cx" style="display: block; padding: 0 10px"> * we need to wrap its content a mock template part block and traverse it.
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -635,13 +625,17 @@
</span><span class="cx" style="display: block; padding: 0 10px"> array(),
</span><span class="cx" style="display: block; padding: 0 10px"> $template->content
</span><span class="cx" style="display: block; padding: 0 10px"> );
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- $content = traverse_and_serialize_blocks( parse_blocks( $content ), $before_block_visitor, $after_block_visitor );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ $content = apply_block_hooks_to_content(
+ $content,
+ $template,
+ 'insert_hooked_blocks_and_set_ignored_hooked_blocks_metadata'
+ );
</ins><span class="cx" style="display: block; padding: 0 10px"> $template->content = remove_serialized_parent_block( $content );
</span><span class="cx" style="display: block; padding: 0 10px"> } else {
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- $template->content = traverse_and_serialize_blocks(
- parse_blocks( $template->content ),
- $before_block_visitor,
- $after_block_visitor
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ $template->content = apply_block_hooks_to_content(
+ $template->content,
+ $template,
+ 'insert_hooked_blocks_and_set_ignored_hooked_blocks_metadata'
</ins><span class="cx" style="display: block; padding: 0 10px"> );
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -1036,32 +1030,31 @@
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- $hooked_blocks = get_hooked_blocks();
- if ( ! empty( $hooked_blocks ) || has_filter( 'hooked_block_types' ) ) {
- $before_block_visitor = make_before_block_visitor( $hooked_blocks, $template, 'insert_hooked_blocks_and_set_ignored_hooked_blocks_metadata' );
- $after_block_visitor = make_after_block_visitor( $hooked_blocks, $template, 'insert_hooked_blocks_and_set_ignored_hooked_blocks_metadata' );
- if ( 'wp_template_part' === $template->type ) {
- $existing_ignored_hooked_blocks = get_post_meta( $post->ID, '_wp_ignored_hooked_blocks', true );
- $attributes = ! empty( $existing_ignored_hooked_blocks ) ? array( 'metadata' => array( 'ignoredHookedBlocks' => json_decode( $existing_ignored_hooked_blocks, true ) ) ) : array();
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ if ( 'wp_template_part' === $template->type ) {
+ $existing_ignored_hooked_blocks = get_post_meta( $post->ID, '_wp_ignored_hooked_blocks', true );
+ $attributes = ! empty( $existing_ignored_hooked_blocks ) ? array( 'metadata' => array( 'ignoredHookedBlocks' => json_decode( $existing_ignored_hooked_blocks, true ) ) ) : array();
</ins><span class="cx" style="display: block; padding: 0 10px">
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- /*
- * In order for hooked blocks to be inserted at positions first_child and last_child in a template part,
- * we need to wrap its content a mock template part block and traverse it.
- */
- $content = get_comment_delimited_block_content(
- 'core/template-part',
- $attributes,
- $template->content
- );
- $content = traverse_and_serialize_blocks( parse_blocks( $content ), $before_block_visitor, $after_block_visitor );
- $template->content = remove_serialized_parent_block( $content );
- } else {
- $template->content = traverse_and_serialize_blocks(
- parse_blocks( $template->content ),
- $before_block_visitor,
- $after_block_visitor
- );
- }
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ /*
+ * In order for hooked blocks to be inserted at positions first_child and last_child in a template part,
+ * we need to wrap its content a mock template part block and traverse it.
+ */
+ $content = get_comment_delimited_block_content(
+ 'core/template-part',
+ $attributes,
+ $template->content
+ );
+ $content = apply_block_hooks_to_content(
+ $content,
+ $template,
+ 'insert_hooked_blocks_and_set_ignored_hooked_blocks_metadata'
+ );
+ $template->content = remove_serialized_parent_block( $content );
+ } else {
+ $template->content = apply_block_hooks_to_content(
+ $template->content,
+ $template,
+ 'insert_hooked_blocks_and_set_ignored_hooked_blocks_metadata'
+ );
</ins><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> return $template;
</span></span></pre></div>
<a id="trunksrcwpincludesblocksphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/wp-includes/blocks.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-includes/blocks.php 2024-09-27 05:56:50 UTC (rev 59100)
+++ trunk/src/wp-includes/blocks.php 2024-09-27 09:18:46 UTC (rev 59101)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -1035,6 +1035,7 @@
</span><span class="cx" style="display: block; padding: 0 10px"> * Runs the hooked blocks algorithm on the given content.
</span><span class="cx" style="display: block; padding: 0 10px"> *
</span><span class="cx" style="display: block; padding: 0 10px"> * @since 6.6.0
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ * @since 6.7.0 Injects the `theme` attribute into Template Part blocks, even if no hooked blocks are registered.
</ins><span class="cx" style="display: block; padding: 0 10px"> * @access private
</span><span class="cx" style="display: block; padding: 0 10px"> *
</span><span class="cx" style="display: block; padding: 0 10px"> * @param string $content Serialized content.
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -1047,15 +1048,16 @@
</span><span class="cx" style="display: block; padding: 0 10px"> */
</span><span class="cx" style="display: block; padding: 0 10px"> function apply_block_hooks_to_content( $content, $context, $callback = 'insert_hooked_blocks' ) {
</span><span class="cx" style="display: block; padding: 0 10px"> $hooked_blocks = get_hooked_blocks();
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- if ( empty( $hooked_blocks ) && ! has_filter( 'hooked_block_types' ) ) {
- return $content;
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+
+ $before_block_visitor = '_inject_theme_attribute_in_template_part_block';
+ $after_block_visitor = null;
+ if ( ! empty( $hooked_blocks ) || has_filter( 'hooked_block_types' ) ) {
+ $before_block_visitor = make_before_block_visitor( $hooked_blocks, $context, $callback );
+ $after_block_visitor = make_after_block_visitor( $hooked_blocks, $context, $callback );
</ins><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> $blocks = parse_blocks( $content );
</span><span class="cx" style="display: block; padding: 0 10px">
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- $before_block_visitor = make_before_block_visitor( $hooked_blocks, $context, $callback );
- $after_block_visitor = make_after_block_visitor( $hooked_blocks, $context, $callback );
-
</del><span class="cx" style="display: block; padding: 0 10px"> return traverse_and_serialize_blocks( $blocks, $before_block_visitor, $after_block_visitor );
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span></span></pre></div>
<a id="trunksrcwpincludesclasswpblockpatternsregistryphp"></a>
<div class="modfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Modified: trunk/src/wp-includes/class-wp-block-patterns-registry.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/src/wp-includes/class-wp-block-patterns-registry.php 2024-09-27 05:56:50 UTC (rev 59100)
+++ trunk/src/wp-includes/class-wp-block-patterns-registry.php 2024-09-27 09:18:46 UTC (rev 59101)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -159,31 +159,6 @@
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> /**
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- * Prepares the content of a block pattern. If hooked blocks are registered, they get injected into the pattern,
- * when they met the defined criteria.
- *
- * @since 6.4.0
- *
- * @param array $pattern Registered pattern properties.
- * @param array $hooked_blocks The list of hooked blocks.
- * @return string The content of the block pattern.
- */
- private function prepare_content( $pattern, $hooked_blocks ) {
- $content = $pattern['content'];
-
- $before_block_visitor = '_inject_theme_attribute_in_template_part_block';
- $after_block_visitor = null;
- if ( ! empty( $hooked_blocks ) || has_filter( 'hooked_block_types' ) ) {
- $before_block_visitor = make_before_block_visitor( $hooked_blocks, $pattern, 'insert_hooked_blocks_and_set_ignored_hooked_blocks_metadata' );
- $after_block_visitor = make_after_block_visitor( $hooked_blocks, $pattern, 'insert_hooked_blocks_and_set_ignored_hooked_blocks_metadata' );
- }
- $blocks = parse_blocks( $content );
- $content = traverse_and_serialize_blocks( $blocks, $before_block_visitor, $after_block_visitor );
-
- return $content;
- }
-
- /**
</del><span class="cx" style="display: block; padding: 0 10px"> * Retrieves the content of a registered block pattern.
</span><span class="cx" style="display: block; padding: 0 10px"> *
</span><span class="cx" style="display: block; padding: 0 10px"> * @since 6.5.0
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -221,8 +196,12 @@
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> $pattern = $this->registered_patterns[ $pattern_name ];
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- $pattern['content'] = $this->get_content( $pattern_name );
- $pattern['content'] = $this->prepare_content( $pattern, get_hooked_blocks() );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ $content = $this->get_content( $pattern_name );
+ $pattern['content'] = apply_block_hooks_to_content(
+ $content,
+ $pattern,
+ 'insert_hooked_blocks_and_set_ignored_hooked_blocks_metadata'
+ );
</ins><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> return $pattern;
</span><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -243,8 +222,12 @@
</span><span class="cx" style="display: block; padding: 0 10px"> $hooked_blocks = get_hooked_blocks();
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> foreach ( $patterns as $index => $pattern ) {
</span><del style="background-color: #fdd; text-decoration:none; display:block; padding: 0 10px">- $pattern['content'] = $this->get_content( $pattern['name'], $outside_init_only );
- $patterns[ $index ]['content'] = $this->prepare_content( $pattern, $hooked_blocks );
</del><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+ $content = $this->get_content( $pattern['name'], $outside_init_only );
+ $patterns[ $index ]['content'] = apply_block_hooks_to_content(
+ $content,
+ $pattern,
+ 'insert_hooked_blocks_and_set_ignored_hooked_blocks_metadata'
+ );
</ins><span class="cx" style="display: block; padding: 0 10px"> }
</span><span class="cx" style="display: block; padding: 0 10px">
</span><span class="cx" style="display: block; padding: 0 10px"> return array_values( $patterns );
</span></span></pre></div>
<a id="trunktestsphpunittestsblocksapplyBlockHooksToContentphp"></a>
<div class="addfile"><h4 style="background-color: #eee; color: inherit; margin: 1em 0; padding: 1.3em; font-size: 115%">Added: trunk/tests/phpunit/tests/blocks/applyBlockHooksToContent.php</h4>
<pre class="diff"><span>
<span class="info" style="display: block; padding: 0 10px; color: #888">--- trunk/tests/phpunit/tests/blocks/applyBlockHooksToContent.php (rev 0)
+++ trunk/tests/phpunit/tests/blocks/applyBlockHooksToContent.php 2024-09-27 09:18:46 UTC (rev 59101)
</span><span class="lines" style="display: block; padding: 0 10px; color: #888">@@ -0,0 +1,70 @@
</span><ins style="background-color: #dfd; text-decoration:none; display:block; padding: 0 10px">+<?php
+/**
+ * Tests for the apply_block_hooks_to_content function.
+ *
+ * @package WordPress
+ * @subpackage Blocks
+ *
+ * @since 6.7.0
+ *
+ * @group blocks
+ * @group block-hooks
+ *
+ * @covers ::apply_block_hooks_to_content
+ */
+class Tests_Blocks_ApplyBlockHooksToContent extends WP_UnitTestCase {
+ /**
+ * Set up.
+ *
+ * @ticket 61902.
+ */
+ public static function wpSetUpBeforeClass() {
+ register_block_type(
+ 'tests/hooked-block',
+ array(
+ 'block_hooks' => array(
+ 'tests/anchor-block' => 'after',
+ ),
+ )
+ );
+ }
+
+ /**
+ * Tear down.
+ *
+ * @ticket 61902.
+ */
+ public static function wpTearDownAfterClass() {
+ $registry = WP_Block_Type_Registry::get_instance();
+
+ $registry->unregister( 'tests/hooked-block' );
+ }
+
+ /**
+ * @ticket 61902
+ */
+ public function test_apply_block_hooks_to_content_sets_theme_attribute_on_template_part_block() {
+ $context = new WP_Block_Template();
+ $context->content = '<!-- wp:template-part /-->';
+
+ $actual = apply_block_hooks_to_content( $context->content, $context, 'insert_hooked_blocks' );
+ $this->assertSame(
+ sprintf( '<!-- wp:template-part {"theme":"%s"} /-->', get_stylesheet() ),
+ $actual
+ );
+ }
+
+ /**
+ * @ticket 61902
+ */
+ public function test_apply_block_hooks_to_content_inserts_hooked_block() {
+ $context = new WP_Block_Template();
+ $context->content = '<!-- wp:tests/anchor-block /-->';
+
+ $actual = apply_block_hooks_to_content( $context->content, $context, 'insert_hooked_blocks' );
+ $this->assertSame(
+ '<!-- wp:tests/anchor-block /--><!-- wp:tests/hooked-block /-->',
+ $actual
+ );
+ }
+}
</ins></span></pre>
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