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Block Editor: Backport block styles server functions from block editor.

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This commit backports the block styles functionality added to the block editor in https://github.com/WordPress/gutenberg/pull/16356.

Props: youknowriad, aduth, swissspidy.
Fixes #48039.

git-svn-id: https://develop.svn.wordpress.org/trunk@46111 602fd350-edb4-49c9-b593-d223f7449a82
This commit is contained in:
Jorge Costa 2019-09-14 18:20:58 +00:00
parent 31a2e8af87
commit 6444dba200
5 changed files with 243 additions and 0 deletions
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28
src/wp-includes/blocks.php
View File

@ -356,3 +356,31 @@ function _restore_wpautop_hook( $content ) {
function block_version( $content ) {
return has_blocks( $content ) ? 1 : 0;
}
/**
* Registers a new block style.
*
* @since 5.3.0
*
* @param string $block_name Block type name including namespace.
* @param array $style_properties Array containing the properties of the style name, label, style (name of the stylesheet to be enqueued), inline_style (string containing the CSS to be added).
*
* @return boolean True if the block style was registered with success and false otherwise.
*/
function register_block_style( $block_name, $style_properties ) {
return WP_Block_Styles_Registry::get_instance()->register( $block_name, $style_properties );
}
/**
* Unregisters a block style.
*
* @since 5.3.0
*
* @param string $block_name Block type name including namespace.
* @param array $block_style_name Block style name.
*
* @return boolean True if the block style was unregistered with success and false otherwise.
*/
function unregister_block_style( $block_name, $block_style_name ) {
return WP_Block_Styles_Registry::get_instance()->unregister( $block_name, $block_style_name );
}

161
src/wp-includes/class-wp-block-styles-registry.php Normal file
View File

@ -0,0 +1,161 @@
<?php
/**
* Blocks API: WP_Block_Styles_Registry class
*
* @package Gutenberg
* @since 5.3.0
*/
/**
* Class used for interacting with block styles.
*
* @since 5.3.0
*/
final class WP_Block_Styles_Registry {
/**
* Registered block styles, as `$block_name => $block_style_name => $block_style_properties` multidimensional arrays.
*
* @since 5.3.0
* @var array
*/
private $registered_block_styles = array();
/**
* Container for the main instance of the class.
*
* @since 5.3.0
* @var WP_Block_Styles_Registry|null
*/
private static $instance = null;
/**
* Registers a block style.
*
* @since 5.3.0
*
* @param string $block_name Block type name including namespace.
* @param array $style_properties Array containing the properties of the style name, label, style (name of the stylesheet to be enqueued), inline_style (string containing the CSS to be added).
*
* @return boolean True if the block style was registered with success and false otherwise.
*/
public function register( $block_name, $style_properties ) {
if ( ! isset( $block_name ) || ! is_string( $block_name ) ) {
$message = __( 'Block name name must be a string.', 'gutenberg' );
_doing_it_wrong( __METHOD__, $message, '6.2.0' );
return false;
}
if ( ! isset( $style_properties['name'] ) || ! is_string( $style_properties['name'] ) ) {
$message = __( 'Block style name must be a string.', 'gutenberg' );
_doing_it_wrong( __METHOD__, $message, '6.2.0' );
return false;
}
$block_style_name = $style_properties['name'];
if ( ! isset( $this->registered_block_styles[ $block_name ] ) ) {
$this->registered_block_styles[ $block_name ] = array();
}
$this->registered_block_styles[ $block_name ][ $block_style_name ] = $style_properties;
return true;
}
/**
* Unregisters a block style.
*
* @param string $block_name Block type name including namespace.
* @param array $block_style_name Block style name.
*
* @return boolean True if the block style was unregistered with success and false otherwise.
*/
public function unregister( $block_name, $block_style_name ) {
if ( ! $this->is_registered( $block_name, $block_style_name ) ) {
/* translators: 1: block name, 2: block style name */
$message = sprintf( __( 'Block "%1$s" does not contain a style named "%2$s.".', 'gutenberg' ), $block_name, $block_style_name );
_doing_it_wrong( __METHOD__, $message, '6.2.0' );
return false;
}
unset( $this->registered_block_styles[ $block_name ][ $block_style_name ] );
return true;
}
/**
* Retrieves an array containing the properties of a registered block style.
*
* @since 5.3.0
*
* @param string $block_name Block type name including namespace.
* @param array $block_style_name Block style name.
*
* @return array Registered block style properties.
*/
public function get_registered( $block_name, $block_style_name ) {
if ( ! $this->is_registered( $block_name, $block_style_name ) ) {
return null;
}
return $this->registered_block_styles[ $block_name ][ $block_style_name ];
}
/**
* Retrieves all registered block styles.
*
* @since 5.3.0
*
* @return array Array of arrays containing the registered block styles properties grouped per block, and per style.
*/
public function get_all_registered() {
return $this->registered_block_styles;
}
/**
* Retrieves registered block styles for a specific block.
*
* @since 5.3.0
*
* @param string $block_name Block type name including namespace.
*
* @return array Array whose keys are block style names and whose value are block style properties.
*/
public function get_registered_styles_for_block( $block_name ) {
if ( isset( $this->registered_block_styles[ $block_name ] ) ) {
return $this->registered_block_styles[ $block_name ];
}
return array();
}
/**
* Checks if a block style is registered.
*
* @since 5.3.0
*
* @param string $block_name Block type name including namespace.
* @param array $block_style_name Block style name.
*
* @return bool True if the block style is registered, false otherwise.
*/
public function is_registered( $block_name, $block_style_name ) {
return isset( $this->registered_block_styles[ $block_name ][ $block_style_name ] );
}
/**
* Utility method to retrieve the main instance of the class.
*
* The instance will be created if it does not exist yet.
*
* @since 5.3.0
*
* @return WP_Block_Styles_Registry The main instance.
*/
public static function get_instance() {
if ( null === self::$instance ) {
self::$instance = new self();
}
return self::$instance;
}
}

2
src/wp-includes/default-filters.php
View File

@ -501,6 +501,8 @@ add_action( 'admin_print_scripts-index.php', 'wp_localize_community_events' );
add_filter( 'wp_print_scripts', 'wp_just_in_time_script_localization' );
add_filter( 'print_scripts_array', 'wp_prototype_before_jquery' );
add_filter( 'customize_controls_print_styles', 'wp_resource_hints', 1 );
add_action( 'enqueue_block_assets', 'enqueue_block_styles_assets', 30 );
add_action( 'enqueue_block_editor_assets', 'enqueue_editor_block_styles_assets' );
add_action( 'wp_default_styles', 'wp_default_styles' );
add_filter( 'style_loader_src', 'wp_style_loader_src', 10, 2 );

51
src/wp-includes/script-loader.php
View File

@ -2780,3 +2780,54 @@ function wp_enqueue_registered_block_scripts_and_styles() {
}
}
}
/**
* Function responsible for enqueuing the styles required for block styles functionality on the editor and on the frontend.
*
* @since 5.3.0
*/
function enqueue_block_styles_assets() {
$block_styles = WP_Block_Styles_Registry::get_instance()->get_all_registered();
foreach ( $block_styles as $styles ) {
foreach ( $styles as $style_properties ) {
if ( isset( $style_properties['style_handle'] ) ) {
wp_enqueue_style( $style_properties['style_handle'] );
}
if ( isset( $style_properties['inline_style'] ) ) {
wp_add_inline_style( 'wp-block-library', $style_properties['inline_style'] );
}
}
}
}
/**
* Function responsible for enqueuing the assets required for block styles functionality on the editor.
*
* @since 5.3.0
*/
function enqueue_editor_block_styles_assets() {
$block_styles = WP_Block_Styles_Registry::get_instance()->get_all_registered();
$register_script_lines = array( '( function() {' );
foreach ( $block_styles as $block_name => $styles ) {
foreach ( $styles as $style_properties ) {
$register_script_lines[] = sprintf(
' wp.blocks.registerBlockStyle( \'%s\', %s );',
$block_name,
wp_json_encode(
array(
'name' => $style_properties['name'],
'label' => $style_properties['label'],
)
)
);
}
}
$register_script_lines[] = '} )();';
$inline_script = implode( "\n", $register_script_lines );
wp_register_script( 'wp-block-styles', false, array( 'wp-blocks' ), true, true );
wp_add_inline_script( 'wp-block-styles', $inline_script );
wp_enqueue_script( 'wp-block-styles' );
}

1
src/wp-settings.php
View File

@ -256,6 +256,7 @@ require( ABSPATH . WPINC . '/rest-api/fields/class-wp-rest-user-meta-fields.php'
require( ABSPATH . WPINC . '/rest-api/search/class-wp-rest-search-handler.php' );
require( ABSPATH . WPINC . '/rest-api/search/class-wp-rest-post-search-handler.php' );
require( ABSPATH . WPINC . '/class-wp-block-type.php' );
require( ABSPATH . WPINC . '/class-wp-block-styles-registry.php' );
require( ABSPATH . WPINC . '/class-wp-block-type-registry.php' );
require( ABSPATH . WPINC . '/class-wp-block-parser.php' );
require( ABSPATH . WPINC . '/blocks.php' );