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The layout block allows containers to define the size of their inner blocks and the allowed allignments. It's only enabled for themes with theme.json files. Props nosolosw. See #53175. Built from https://develop.svn.wordpress.org/trunk@50991 git-svn-id: http://core.svn.wordpress.org/trunk@50600 1a063a9b-81f0-0310-95a4-ce76da25c4cd
143 lines
4.5 KiB
PHP
143 lines
4.5 KiB
PHP
<?php
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/**
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* Layout block support flag.
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*
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* @package WordPress
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* @since 5.8.0
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*/
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/**
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* Registers the layout block attribute for block types that support it.
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*
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* @since 5.8.0
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* @access private
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*
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* @param WP_Block_Type $block_type Block Type.
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*/
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function wp_register_layout_support( $block_type ) {
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$support_layout = block_has_support( $block_type, array( '__experimentalLayout' ), false );
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if ( $support_layout ) {
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if ( ! $block_type->attributes ) {
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$block_type->attributes = array();
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}
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if ( ! array_key_exists( 'layout', $block_type->attributes ) ) {
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$block_type->attributes['layout'] = array(
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'type' => 'object',
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);
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}
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}
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}
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/**
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* Renders the layout config to the block wrapper.
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*
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* @since 5.8.0
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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_render_layout_support_flag( $block_content, $block ) {
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$block_type = WP_Block_Type_Registry::get_instance()->get_registered( $block['blockName'] );
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$support_layout = block_has_support( $block_type, array( '__experimentalLayout' ), false );
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if ( ! $support_layout || ! isset( $block['attrs']['layout'] ) ) {
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return $block_content;
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}
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$used_layout = $block['attrs']['layout'];
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if ( isset( $used_layout['inherit'] ) && $used_layout['inherit'] ) {
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$tree = WP_Theme_JSON_Resolver::get_merged_data();
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$default_layout = _wp_array_get( $tree->get_settings(), array( 'layout' ) );
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if ( ! $default_layout ) {
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return $block_content;
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}
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$used_layout = $default_layout;
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}
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$id = uniqid();
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$content_size = isset( $used_layout['contentSize'] ) ? $used_layout['contentSize'] : null;
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$wide_size = isset( $used_layout['wideSize'] ) ? $used_layout['wideSize'] : null;
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$all_max_width_value = $content_size ? $content_size : $wide_size;
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$wide_max_width_value = $wide_size ? $wide_size : $content_size;
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// Make sure there is a single CSS rule, and all tags are stripped for security.
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$all_max_width_value = safecss_filter_attr( explode( ';', $all_max_width_value )[0] );
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$wide_max_width_value = safecss_filter_attr( explode( ';', $wide_max_width_value )[0] );
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$style = '';
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if ( $content_size || $wide_size ) {
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$style = ".wp-container-$id > * {";
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$style .= 'max-width: ' . esc_html( $all_max_width_value ) . ';';
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$style .= 'margin-left: auto !important;';
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$style .= 'margin-right: auto !important;';
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$style .= '}';
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$style .= ".wp-container-$id > .alignwide { max-width: " . esc_html( $wide_max_width_value ) . ';}';
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$style .= ".wp-container-$id .alignfull { max-width: none; }";
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}
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$style .= ".wp-container-$id .alignleft { float: left; margin-right: 2em; }";
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$style .= ".wp-container-$id .alignright { float: right; margin-left: 2em; }";
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// This assumes the hook only applies to blocks with a single wrapper.
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// I think this is a reasonable limitation for that particular hook.
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$content = preg_replace(
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'/' . preg_quote( 'class="', '/' ) . '/',
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'class="wp-container-' . $id . ' ',
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$block_content,
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1
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);
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return $content . '<style>' . $style . '</style>';
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}
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// Register the block support.
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WP_Block_Supports::get_instance()->register(
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'layout',
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array(
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'register_attribute' => 'wp_register_layout_support',
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)
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);
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add_filter( 'render_block', 'wp_render_layout_support_flag', 10, 2 );
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/**
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* For themes without theme.json file, make sure
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* to restore the inner div for the group block
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* to avoid breaking styles relying on that div.
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*
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* @since 5.8.0
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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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*
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* @return string Filtered block content.
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*/
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function wp_restore_group_inner_container( $block_content, $block ) {
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$group_with_inner_container_regex = '/(^\s*<div\b[^>]*wp-block-group(\s|")[^>]*>)(\s*<div\b[^>]*wp-block-group__inner-container(\s|")[^>]*>)((.|\S|\s)*)/';
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if (
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'core/group' !== $block['blockName'] ||
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WP_Theme_JSON_Resolver::theme_has_support() ||
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1 === preg_match( $group_with_inner_container_regex, $block_content )
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) {
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return $block_content;
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}
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$replace_regex = '/(^\s*<div\b[^>]*wp-block-group[^>]*>)(.*)(<\/div>\s*$)/ms';
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$updated_content = preg_replace_callback(
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$replace_regex,
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function( $matches ) {
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return $matches[1] . '<div class="wp-block-group__inner-container">' . $matches[2] . '</div>' . $matches[3];
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},
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$block_content
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);
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return $updated_content;
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}
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add_filter( 'render_block', 'wp_restore_group_inner_container', 10, 2 );
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