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Backports changes applied in the Gutenberg plugin planned for WordPress 6.0 release. See https://github.com/WordPress/gutenberg/issues/39889. Props ramonopoly, youknowriad. See #55505. Built from https://develop.svn.wordpress.org/trunk@53085 git-svn-id: http://core.svn.wordpress.org/trunk@52674 1a063a9b-81f0-0310-95a4-ce76da25c4cd
315 lines
11 KiB
PHP
315 lines
11 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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* Generates the CSS corresponding to the provided layout.
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*
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* @since 5.9.0
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* @access private
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*
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* @param string $selector CSS selector.
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* @param array $layout Layout object. The one that is passed has already checked
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* the existence of default block layout.
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* @param boolean $has_block_gap_support Whether the theme has support for the block gap.
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* @param string $gap_value The block gap value to apply.
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* @param boolean $should_skip_gap_serialization Whether to skip applying the user-defined value set in the editor.
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* @return string CSS style.
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*/
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function wp_get_layout_style( $selector, $layout, $has_block_gap_support = false, $gap_value = null, $should_skip_gap_serialization = false ) {
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$layout_type = isset( $layout['type'] ) ? $layout['type'] : 'default';
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$style = '';
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if ( 'default' === $layout_type ) {
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$content_size = isset( $layout['contentSize'] ) ? $layout['contentSize'] : '';
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$wide_size = isset( $layout['wideSize'] ) ? $layout['wideSize'] : '';
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$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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if ( $content_size || $wide_size ) {
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$style = "$selector > :where(:not(.alignleft):not(.alignright)) {";
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$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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$style .= "$selector > .alignwide { max-width: " . esc_html( $wide_max_width_value ) . ';}';
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$style .= "$selector .alignfull { max-width: none; }";
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}
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$style .= "$selector > .alignleft { float: left; margin-inline-start: 0; margin-inline-end: 2em; }";
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$style .= "$selector > .alignright { float: right; margin-inline-start: 2em; margin-inline-end: 0; }";
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$style .= "$selector > .aligncenter { margin-left: auto !important; margin-right: auto !important; }";
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if ( $has_block_gap_support ) {
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if ( is_array( $gap_value ) ) {
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$gap_value = isset( $gap_value['top'] ) ? $gap_value['top'] : null;
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}
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$gap_style = $gap_value && ! $should_skip_gap_serialization ? $gap_value : 'var( --wp--style--block-gap )';
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$style .= "$selector > * { margin-block-start: 0; margin-block-end: 0; }";
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$style .= "$selector > * + * { margin-block-start: $gap_style; margin-block-end: 0; }";
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}
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} elseif ( 'flex' === $layout_type ) {
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$layout_orientation = isset( $layout['orientation'] ) ? $layout['orientation'] : 'horizontal';
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$justify_content_options = array(
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'left' => 'flex-start',
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'right' => 'flex-end',
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'center' => 'center',
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);
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if ( 'horizontal' === $layout_orientation ) {
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$justify_content_options += array( 'space-between' => 'space-between' );
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}
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$flex_wrap_options = array( 'wrap', 'nowrap' );
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$flex_wrap = ! empty( $layout['flexWrap'] ) && in_array( $layout['flexWrap'], $flex_wrap_options, true ) ?
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$layout['flexWrap'] :
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'wrap';
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$style = "$selector {";
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$style .= 'display: flex;';
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if ( $has_block_gap_support ) {
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if ( is_array( $gap_value ) ) {
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$gap_row = isset( $gap_value['top'] ) ? $gap_value['top'] : '0.5em';
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$gap_column = isset( $gap_value['left'] ) ? $gap_value['left'] : '0.5em';
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$gap_value = $gap_row === $gap_column ? $gap_row : $gap_row . ' ' . $gap_column;
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}
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$gap_style = $gap_value && ! $should_skip_gap_serialization ? $gap_value : 'var( --wp--style--block-gap, 0.5em )';
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$style .= "gap: $gap_style;";
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} else {
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$style .= 'gap: 0.5em;';
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}
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$style .= "flex-wrap: $flex_wrap;";
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if ( 'horizontal' === $layout_orientation ) {
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$style .= 'align-items: center;';
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/**
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* Add this style only if is not empty for backwards compatibility,
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* since we intend to convert blocks that had flex layout implemented
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* by custom css.
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*/
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if ( ! empty( $layout['justifyContent'] ) && array_key_exists( $layout['justifyContent'], $justify_content_options ) ) {
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$style .= "justify-content: {$justify_content_options[ $layout['justifyContent'] ]};";
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}
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} else {
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$style .= 'flex-direction: column;';
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if ( ! empty( $layout['justifyContent'] ) && array_key_exists( $layout['justifyContent'], $justify_content_options ) ) {
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$style .= "align-items: {$justify_content_options[ $layout['justifyContent'] ]};";
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} else {
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$style .= 'align-items: flex-start;';
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}
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}
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$style .= '}';
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$style .= "$selector > * { margin: 0; }";
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}
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return $style;
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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 ) {
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return $block_content;
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}
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$block_gap = wp_get_global_settings( array( 'spacing', 'blockGap' ) );
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$default_layout = wp_get_global_settings( array( 'layout' ) );
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$has_block_gap_support = isset( $block_gap ) ? null !== $block_gap : false;
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$default_block_layout = _wp_array_get( $block_type->supports, array( '__experimentalLayout', 'default' ), array() );
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$used_layout = isset( $block['attrs']['layout'] ) ? $block['attrs']['layout'] : $default_block_layout;
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if ( isset( $used_layout['inherit'] ) && $used_layout['inherit'] ) {
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if ( ! $default_layout ) {
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return $block_content;
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}
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$used_layout = $default_layout;
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}
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$class_name = wp_unique_id( 'wp-container-' );
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$gap_value = _wp_array_get( $block, array( 'attrs', 'style', 'spacing', 'blockGap' ) );
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// Skip if gap value contains unsupported characters.
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// Regex for CSS value borrowed from `safecss_filter_attr`, and used here
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// because we only want to match against the value, not the CSS attribute.
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if ( is_array( $gap_value ) ) {
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foreach ( $gap_value as $key => $value ) {
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$gap_value[ $key ] = $value && preg_match( '%[\\\(&=}]|/\*%', $value ) ? null : $value;
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}
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} else {
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$gap_value = $gap_value && preg_match( '%[\\\(&=}]|/\*%', $gap_value ) ? null : $gap_value;
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}
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// If a block's block.json skips serialization for spacing or spacing.blockGap,
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// don't apply the user-defined value to the styles.
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$should_skip_gap_serialization = wp_should_skip_block_supports_serialization( $block_type, 'spacing', 'blockGap' );
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$style = wp_get_layout_style( ".$class_name", $used_layout, $has_block_gap_support, $gap_value, $should_skip_gap_serialization );
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// This assumes the hook only applies to blocks with a single wrapper.
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// I think this is a reasonable limitation for that particular hook.
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$content = preg_replace(
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'/' . preg_quote( 'class="', '/' ) . '/',
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'class="' . esc_attr( $class_name ) . ' ',
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$block_content,
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1
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);
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wp_enqueue_block_support_styles( $style );
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return $content;
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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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* @return string Filtered block content.
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*/
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function wp_restore_group_inner_container( $block_content, $block ) {
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$tag_name = isset( $block['attrs']['tagName'] ) ? $block['attrs']['tagName'] : 'div';
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$group_with_inner_container_regex = sprintf(
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'/(^\s*<%1$s\b[^>]*wp-block-group(\s|")[^>]*>)(\s*<div\b[^>]*wp-block-group__inner-container(\s|")[^>]*>)((.|\S|\s)*)/U',
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preg_quote( $tag_name, '/' )
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);
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if (
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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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( isset( $block['attrs']['layout']['type'] ) && 'default' !== $block['attrs']['layout']['type'] )
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) {
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return $block_content;
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}
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$replace_regex = sprintf(
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'/(^\s*<%1$s\b[^>]*wp-block-group[^>]*>)(.*)(<\/%1$s>\s*$)/ms',
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preg_quote( $tag_name, '/' )
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);
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$updated_content = preg_replace_callback(
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$replace_regex,
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static 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_core/group', 'wp_restore_group_inner_container', 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 outer div for the aligned image block
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* to avoid breaking styles relying on that div.
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*
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* @since 6.0.0
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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_restore_image_outer_container( $block_content, $block ) {
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$image_with_align = "
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/# 1) everything up to the class attribute contents
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(
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^\s*
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<figure\b
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[^>]*
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\bclass=
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[\"']
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)
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# 2) the class attribute contents
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(
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[^\"']*
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\bwp-block-image\b
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[^\"']*
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\b(?:alignleft|alignright|aligncenter)\b
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[^\"']*
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)
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# 3) everything after the class attribute contents
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(
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[\"']
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[^>]*
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>
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.*
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<\/figure>
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)/iUx";
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if (
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WP_Theme_JSON_Resolver::theme_has_support() ||
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0 === preg_match( $image_with_align, $block_content, $matches )
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) {
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return $block_content;
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}
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$wrapper_classnames = array( 'wp-block-image' );
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// If the block has a classNames attribute these classnames need to be removed from the content and added back
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// to the new wrapper div also.
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if ( ! empty( $block['attrs']['className'] ) ) {
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$wrapper_classnames = array_merge( $wrapper_classnames, explode( ' ', $block['attrs']['className'] ) );
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}
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$content_classnames = explode( ' ', $matches[2] );
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$filtered_content_classnames = array_diff( $content_classnames, $wrapper_classnames );
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return '<div class="' . implode( ' ', $wrapper_classnames ) . '">' . $matches[1] . implode( ' ', $filtered_content_classnames ) . $matches[3] . '</div>';
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}
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add_filter( 'render_block_core/image', 'wp_restore_image_outer_container', 10, 2 );
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