253 lines
8.9 KiB
PHP
253 lines
8.9 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 the existance 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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*
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* @return string CSS style.
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*/
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function wp_get_layout_style( $selector, $layout, $has_block_gap_support = false ) {
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$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'] ) ? $layout['contentSize'] : null;
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$wide_size = isset( $layout['wideSize'] ) ? $layout['wideSize'] : null;
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$all_max_width_value = $content_size ? $content_size : $wide_size;
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$wide_max_width_value = $wide_size ? $wide_size : $content_size;
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// Make sure there is a single CSS rule, and all tags are stripped for security.
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// TODO: Use `safecss_filter_attr` instead - once https://core.trac.wordpress.org/ticket/46197 is patched.
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$all_max_width_value = wp_strip_all_tags( explode( ';', $all_max_width_value )[0] );
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$wide_max_width_value = wp_strip_all_tags( 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 = "$selector > * {";
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$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 .= "$selector .alignleft { float: left; margin-right: 2em; }";
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$style .= "$selector .alignright { float: right; margin-left: 2em; }";
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if ( $has_block_gap_support ) {
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$style .= "$selector > * { margin-top: 0; margin-bottom: 0; }";
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$style .= "$selector > * + * { margin-top: var( --wp--style--block-gap ); margin-bottom: 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 ( $has_block_gap_support ) {
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$style .= 'gap: var( --wp--style--block-gap, 0.5em );';
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} else {
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$style .= 'gap: 0.5em;';
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}
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$style .= "flex-wrap: $flex_wrap;";
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$style .= 'align-items: center;';
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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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if ( ! empty( $layout['setCascadingProperties'] ) && $layout['setCascadingProperties'] ) {
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// --layout-justification-setting allows children to inherit the value regardless or row or column direction.
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$style .= "--layout-justification-setting: {$justify_content_options[ $layout['justifyContent'] ]};";
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$style .= '--layout-direction: row;';
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$style .= "--layout-wrap: $flex_wrap;";
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$style .= "--layout-justify: {$justify_content_options[ $layout['justifyContent'] ]};";
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$style .= '--layout-align: center;';
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}
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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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if ( ! empty( $layout['setCascadingProperties'] ) && $layout['setCascadingProperties'] ) {
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// --layout-justification-setting allows children to inherit the value regardless or row or column direction.
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$style .= "--layout-justification-setting: {$justify_content_options[ $layout['justifyContent'] ]};";
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$style .= '--layout-direction: column;';
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$style .= '--layout-justify: initial;';
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$style .= "--layout-align: {$justify_content_options[ $layout['justifyContent'] ]};";
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}
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}
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}
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$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 = $default_layout;
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}
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$id = uniqid();
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$style = wp_get_layout_style( ".wp-container-$id", $used_layout, $has_block_gap_support );
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// This assumes the hook only applies to blocks with a single wrapper.
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// I think this is a reasonable limitation for that particular hook.
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$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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/*
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* Ideally styles should be loaded in the head, but blocks may be parsed
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* after that, so loading in the footer for now.
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* See https://core.trac.wordpress.org/ticket/53494.
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*/
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add_action(
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'wp_footer',
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static function () use ( $style ) {
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echo '<style>' . $style . '</style>';
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}
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);
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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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*
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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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'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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( 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', 'wp_restore_group_inner_container', 10, 2 );
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