Block editor: Add frontend block-level settings to the core.

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
This commit is contained in:
jorgefilipecosta 2023-02-07 12:42:20 +00:00
parent fe3f12b10f
commit bd2eae6719
4 changed files with 198 additions and 11 deletions

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@ -0,0 +1,146 @@
<?php
/**
* Block level presets support.
*
* @package WordPress
* @since 6.2.0
*/
/**
* Get the class name used on block level presets.
*
* @internal
*
* @since 6.2.0
* @access private
*
* @param array $block Block object.
* @return string The unique class name.
*/
function _wp_get_presets_class_name( $block ) {
return 'wp-settings-' . md5( serialize( $block ) );
}
/**
* Update the block content with block level presets class name.
*
* @internal
*
* @since 6.2.0
* @access private
*
* @param string $block_content Rendered block content.
* @param array $block Block object.
* @return string Filtered block content.
*/
function _wp_add_block_level_presets_class( $block_content, $block ) {
if ( ! $block_content ) {
return $block_content;
}
// return early if the block doesn't have support for settings.
$block_type = WP_Block_Type_Registry::get_instance()->get_registered( $block['blockName'] );
if ( ! block_has_support( $block_type, array( '__experimentalSettings' ), false ) ) {
return $block_content;
}
// return early if no settings are found on the block attributes.
$block_settings = _wp_array_get( $block, array( 'attrs', 'settings' ), null );
if ( empty( $block_settings ) ) {
return $block_content;
}
// Like the layout hook this assumes the hook only applies to blocks with a single wrapper.
// Add the class name to the first element, presuming it's the wrapper, if it exists.
$tags = new WP_HTML_Tag_Processor( $block_content );
if ( $tags->next_tag() ) {
$tags->add_class( _wp_get_presets_class_name( $block ) );
}
return $tags->get_updated_html();
}
/**
* Render the block level presets stylesheet.
*
* @internal
*
* @since 6.2.0
* @access private
*
* @param string|null $pre_render The pre-rendered content. Default null.
* @param array $block The block being rendered.
*
* @return null
*/
function _wp_add_block_level_preset_styles( $pre_render, $block ) {
// Return early if the block has not support for descendent block styles.
$block_type = WP_Block_Type_Registry::get_instance()->get_registered( $block['blockName'] );
if ( ! block_has_support( $block_type, array( '__experimentalSettings' ), false ) ) {
return null;
}
// return early if no settings are found on the block attributes.
$block_settings = _wp_array_get( $block, array( 'attrs', 'settings' ), null );
if ( empty( $block_settings ) ) {
return null;
}
$class_name = '.' . _wp_get_presets_class_name( $block );
// the root selector for preset variables needs to target every possible block selector
// in order for the general setting to override any bock specific setting of a parent block or
// the site root.
$variables_root_selector = '*,[class*="wp-block"]';
$registry = WP_Block_Type_Registry::get_instance();
$blocks = $registry->get_all_registered();
foreach ( $blocks as $block_type ) {
if (
isset( $block_type->supports['__experimentalSelector'] ) &&
is_string( $block_type->supports['__experimentalSelector'] )
) {
$variables_root_selector .= ',' . $block_type->supports['__experimentalSelector'];
}
}
$variables_root_selector = WP_Theme_JSON::scope_selector( $class_name, $variables_root_selector );
// Remove any potentially unsafe styles.
$theme_json_shape = WP_Theme_JSON::remove_insecure_properties(
array(
'version' => WP_Theme_JSON::LATEST_SCHEMA,
'settings' => $block_settings,
)
);
$theme_json_object = new WP_Theme_JSON( $theme_json_shape );
$styles = '';
// include preset css variables declaration on the stylesheet.
$styles .= $theme_json_object->get_stylesheet(
array( 'variables' ),
null,
array(
'root_selector' => $variables_root_selector,
'scope' => $class_name,
)
);
// include preset css classes on the the stylesheet.
$styles .= $theme_json_object->get_stylesheet(
array( 'presets' ),
null,
array(
'root_selector' => $class_name . ',' . $class_name . ' *',
'scope' => $class_name,
)
);
if ( ! empty( $styles ) ) {
wp_enqueue_block_support_styles( $styles );
}
return null;
}
add_filter( 'render_block', '_wp_add_block_level_presets_class', 10, 2 );
add_filter( 'pre_render_block', '_wp_add_block_level_preset_styles', 10, 2 );

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@ -943,9 +943,12 @@ class WP_Theme_JSON {
* - `styles`: only the styles section in theme.json. * - `styles`: only the styles section in theme.json.
* - `presets`: only the classes for the presets. * - `presets`: only the classes for the presets.
* @param array $origins A list of origins to include. By default it includes VALID_ORIGINS. * @param array $origins A list of origins to include. By default it includes VALID_ORIGINS.
* @param array $options An array of options for now used for internal purposes only (may change without notice).
* The options currently supported are 'scope' that makes sure all style are scoped to a given selector,
* and root_selector which overwrites and forces a given selector to be used on the root node.
* @return string The resulting stylesheet. * @return string The resulting stylesheet.
*/ */
public function get_stylesheet( $types = array( 'variables', 'styles', 'presets' ), $origins = null ) { public function get_stylesheet( $types = array( 'variables', 'styles', 'presets' ), $origins = null, $options = array() ) {
if ( null === $origins ) { if ( null === $origins ) {
$origins = static::VALID_ORIGINS; $origins = static::VALID_ORIGINS;
} }
@ -966,6 +969,27 @@ class WP_Theme_JSON {
$style_nodes = static::get_style_nodes( $this->theme_json, $blocks_metadata ); $style_nodes = static::get_style_nodes( $this->theme_json, $blocks_metadata );
$setting_nodes = static::get_setting_nodes( $this->theme_json, $blocks_metadata ); $setting_nodes = static::get_setting_nodes( $this->theme_json, $blocks_metadata );
$root_style_key = array_search( static::ROOT_BLOCK_SELECTOR, array_column( $style_nodes, 'selector' ), true );
$root_settings_key = array_search( static::ROOT_BLOCK_SELECTOR, array_column( $setting_nodes, 'selector' ), true );
if ( ! empty( $options['scope'] ) ) {
foreach ( $setting_nodes as &$node ) {
$node['selector'] = static::scope_selector( $options['scope'], $node['selector'] );
}
foreach ( $style_nodes as &$node ) {
$node['selector'] = static::scope_selector( $options['scope'], $node['selector'] );
}
}
if ( ! empty( $options['root_selector'] ) ) {
if ( false !== $root_settings_key ) {
$setting_nodes[ $root_settings_key ]['selector'] = $options['root_selector'];
}
if ( false !== $root_style_key ) {
$setting_nodes[ $root_style_key ]['selector'] = $options['root_selector'];
}
}
$stylesheet = ''; $stylesheet = '';
if ( in_array( 'variables', $types, true ) ) { if ( in_array( 'variables', $types, true ) ) {
@ -973,23 +997,30 @@ class WP_Theme_JSON {
} }
if ( in_array( 'styles', $types, true ) ) { if ( in_array( 'styles', $types, true ) ) {
$root_block_key = array_search( static::ROOT_BLOCK_SELECTOR, array_column( $style_nodes, 'selector' ), true ); if ( false !== $root_style_key ) {
$stylesheet .= $this->get_root_layout_rules( $style_nodes[ $root_style_key ]['selector'], $style_nodes[ $root_style_key ] );
if ( false !== $root_block_key ) {
$stylesheet .= $this->get_root_layout_rules( static::ROOT_BLOCK_SELECTOR, $style_nodes[ $root_block_key ] );
} }
$stylesheet .= $this->get_block_classes( $style_nodes ); $stylesheet .= $this->get_block_classes( $style_nodes );
} elseif ( in_array( 'base-layout-styles', $types, true ) ) { } elseif ( in_array( 'base-layout-styles', $types, true ) ) {
$root_selector = static::ROOT_BLOCK_SELECTOR;
$columns_selector = '.wp-block-columns';
if ( ! empty( $options['scope'] ) ) {
$root_selector = static::scope_selector( $options['scope'], $root_selector );
$columns_selector = static::scope_selector( $options['scope'], $columns_selector );
}
if ( ! empty( $options['root_selector'] ) ) {
$root_selector = $options['root_selector'];
}
// Base layout styles are provided as part of `styles`, so only output separately if explicitly requested. // Base layout styles are provided as part of `styles`, so only output separately if explicitly requested.
// For backwards compatibility, the Columns block is explicitly included, to support a different default gap value. // For backwards compatibility, the Columns block is explicitly included, to support a different default gap value.
$base_styles_nodes = array( $base_styles_nodes = array(
array( array(
'path' => array( 'styles' ), 'path' => array( 'styles' ),
'selector' => static::ROOT_BLOCK_SELECTOR, 'selector' => $root_selector,
), ),
array( array(
'path' => array( 'styles', 'blocks', 'core/columns' ), 'path' => array( 'styles', 'blocks', 'core/columns' ),
'selector' => '.wp-block-columns', 'selector' => $columns_selector,
'name' => 'core/columns', 'name' => 'core/columns',
), ),
); );
@ -1490,18 +1521,27 @@ class WP_Theme_JSON {
* @param string $selector Original selector. * @param string $selector Original selector.
* @return string Scoped selector. * @return string Scoped selector.
*/ */
protected static function scope_selector( $scope, $selector ) { public static function scope_selector( $scope, $selector ) {
$scopes = explode( ',', $scope ); $scopes = explode( ',', $scope );
$selectors = explode( ',', $selector ); $selectors = explode( ',', $selector );
$selectors_scoped = array(); $selectors_scoped = array();
foreach ( $scopes as $outer ) { foreach ( $scopes as $outer ) {
foreach ( $selectors as $inner ) { foreach ( $selectors as $inner ) {
$selectors_scoped[] = trim( $outer ) . ' ' . trim( $inner ); $outer = trim( $outer );
$inner = trim( $inner );
if ( ! empty( $outer ) && ! empty( $inner ) ) {
$selectors_scoped[] = $outer . ' ' . $inner;
} elseif ( empty( $outer ) ) {
$selectors_scoped[] = $inner;
} elseif ( empty( $inner ) ) {
$selectors_scoped[] = $outer;
}
} }
} }
return implode( ', ', $selectors_scoped ); $result = implode( ', ', $selectors_scoped );
return $result;
} }
/** /**

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@ -16,7 +16,7 @@
* *
* @global string $wp_version * @global string $wp_version
*/ */
$wp_version = '6.2-alpha-55254'; $wp_version = '6.2-alpha-55255';
/** /**
* Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema. * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.

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@ -338,6 +338,7 @@ require ABSPATH . WPINC . '/block-supports/generated-classname.php';
require ABSPATH . WPINC . '/block-supports/layout.php'; require ABSPATH . WPINC . '/block-supports/layout.php';
require ABSPATH . WPINC . '/block-supports/spacing.php'; require ABSPATH . WPINC . '/block-supports/spacing.php';
require ABSPATH . WPINC . '/block-supports/typography.php'; require ABSPATH . WPINC . '/block-supports/typography.php';
require ABSPATH . WPINC . '/block-supports/settings.php';
require ABSPATH . WPINC . '/style-engine.php'; require ABSPATH . WPINC . '/style-engine.php';
require ABSPATH . WPINC . '/style-engine/class-wp-style-engine.php'; require ABSPATH . WPINC . '/style-engine/class-wp-style-engine.php';
require ABSPATH . WPINC . '/style-engine/class-wp-style-engine-css-declarations.php'; require ABSPATH . WPINC . '/style-engine/class-wp-style-engine-css-declarations.php';