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bd2eae6719
This commit adds block-level settings in the core. Block level settings allow a block to define the preset settings of its nested blocks using the same shape as theme.json. Props oandregal, Mamaduka, jorgefilipecosta, dmsnell, adamziel. 57651 #57651. Built from https://develop.svn.wordpress.org/trunk@55255 git-svn-id: http://core.svn.wordpress.org/trunk@54788 1a063a9b-81f0-0310-95a4-ce76da25c4cd
147 lines
4.2 KiB
PHP
147 lines
4.2 KiB
PHP
<?php
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/**
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* Block level presets support.
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*
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* @package WordPress
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* @since 6.2.0
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*/
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/**
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* Get the class name used on block level presets.
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*
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* @internal
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*
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* @since 6.2.0
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* @access private
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*
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* @param array $block Block object.
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* @return string The unique class name.
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*/
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function _wp_get_presets_class_name( $block ) {
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return 'wp-settings-' . md5( serialize( $block ) );
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}
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/**
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* Update the block content with block level presets class name.
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*
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* @internal
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*
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* @since 6.2.0
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* @access private
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*
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* @param string $block_content Rendered block content.
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* @param array $block Block object.
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* @return string Filtered block content.
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*/
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function _wp_add_block_level_presets_class( $block_content, $block ) {
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if ( ! $block_content ) {
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return $block_content;
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}
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// return early if the block doesn't have support for settings.
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$block_type = WP_Block_Type_Registry::get_instance()->get_registered( $block['blockName'] );
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if ( ! block_has_support( $block_type, array( '__experimentalSettings' ), false ) ) {
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return $block_content;
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}
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// return early if no settings are found on the block attributes.
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$block_settings = _wp_array_get( $block, array( 'attrs', 'settings' ), null );
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if ( empty( $block_settings ) ) {
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return $block_content;
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}
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// Like the layout hook this assumes the hook only applies to blocks with a single wrapper.
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// Add the class name to the first element, presuming it's the wrapper, if it exists.
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$tags = new WP_HTML_Tag_Processor( $block_content );
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if ( $tags->next_tag() ) {
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$tags->add_class( _wp_get_presets_class_name( $block ) );
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}
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return $tags->get_updated_html();
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}
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/**
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* Render the block level presets stylesheet.
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*
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* @internal
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*
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* @since 6.2.0
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* @access private
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*
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* @param string|null $pre_render The pre-rendered content. Default null.
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* @param array $block The block being rendered.
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*
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* @return null
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*/
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function _wp_add_block_level_preset_styles( $pre_render, $block ) {
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// Return early if the block has not support for descendent block styles.
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$block_type = WP_Block_Type_Registry::get_instance()->get_registered( $block['blockName'] );
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if ( ! block_has_support( $block_type, array( '__experimentalSettings' ), false ) ) {
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return null;
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}
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// return early if no settings are found on the block attributes.
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$block_settings = _wp_array_get( $block, array( 'attrs', 'settings' ), null );
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if ( empty( $block_settings ) ) {
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return null;
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}
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$class_name = '.' . _wp_get_presets_class_name( $block );
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// the root selector for preset variables needs to target every possible block selector
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// in order for the general setting to override any bock specific setting of a parent block or
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// the site root.
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$variables_root_selector = '*,[class*="wp-block"]';
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$registry = WP_Block_Type_Registry::get_instance();
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$blocks = $registry->get_all_registered();
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foreach ( $blocks as $block_type ) {
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if (
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isset( $block_type->supports['__experimentalSelector'] ) &&
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is_string( $block_type->supports['__experimentalSelector'] )
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) {
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$variables_root_selector .= ',' . $block_type->supports['__experimentalSelector'];
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}
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}
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$variables_root_selector = WP_Theme_JSON::scope_selector( $class_name, $variables_root_selector );
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// Remove any potentially unsafe styles.
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$theme_json_shape = WP_Theme_JSON::remove_insecure_properties(
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array(
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'version' => WP_Theme_JSON::LATEST_SCHEMA,
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'settings' => $block_settings,
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)
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);
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$theme_json_object = new WP_Theme_JSON( $theme_json_shape );
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$styles = '';
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// include preset css variables declaration on the stylesheet.
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$styles .= $theme_json_object->get_stylesheet(
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array( 'variables' ),
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null,
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array(
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'root_selector' => $variables_root_selector,
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'scope' => $class_name,
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)
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);
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// include preset css classes on the the stylesheet.
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$styles .= $theme_json_object->get_stylesheet(
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array( 'presets' ),
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null,
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array(
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'root_selector' => $class_name . ',' . $class_name . ' *',
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'scope' => $class_name,
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)
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);
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if ( ! empty( $styles ) ) {
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wp_enqueue_block_support_styles( $styles );
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}
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return null;
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}
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add_filter( 'render_block', '_wp_add_block_level_presets_class', 10, 2 );
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add_filter( 'pre_render_block', '_wp_add_block_level_preset_styles', 10, 2 );
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