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<?php
/**
* Server-side rendering of the `core/query` block.
*
* @package WordPress
*/
/**
* Modifies the static `core/query` block on the server.
*
* @since 6.4.0
*
* @param array $attributes Block attributes.
* @param string $content Block default content.
* @param WP_Block $block The block instance.
*
* @return string Returns the modified output of the query block.
*/
function render_block_core_query( $attributes, $content, $block ) {
$is_interactive = isset( $attributes['enhancedPagination'] )
&& true === $attributes['enhancedPagination']
&& isset( $attributes['queryId'] );
// Enqueue the script module and add the necessary directives if the block is
// interactive.
if ( $is_interactive ) {
wp_enqueue_script_module( '@wordpress/block-library/query/view' );
$p = new WP_HTML_Tag_Processor( $content );
if ( $p->next_tag() ) {
// Add the necessary directives.
$p->set_attribute( 'data-wp-interactive', 'core/query' );
$p->set_attribute( 'data-wp-router-region', 'query-' . $attributes['queryId'] );
$p->set_attribute( 'data-wp-context', '{}' );
$p->set_attribute( 'data-wp-key', $attributes['queryId'] );
$content = $p->get_updated_html();
}
}
// Add the styles to the block type if the block is interactive and remove
// them if it's not.
$style_asset = 'wp-block-query';
if ( ! wp_style_is( $style_asset ) ) {
$style_handles = $block->block_type->style_handles;
// If the styles are not needed, and they are still in the `style_handles`, remove them.
if ( ! $is_interactive && in_array( $style_asset, $style_handles, true ) ) {
$block->block_type->style_handles = array_diff( $style_handles, array( $style_asset ) );
}
// If the styles are needed, but they were previously removed, add them again.
if ( $is_interactive && ! in_array( $style_asset, $style_handles, true ) ) {
$block->block_type->style_handles = array_merge( $style_handles, array( $style_asset ) );
}
}
return $content;
}
/**
* Registers the `core/query` block on the server.
*
* @since 5.8.0
*/
function register_block_core_query() {
register_block_type_from_metadata(
__DIR__ . '/query',
array(
'render_callback' => 'render_block_core_query',
)
);
}
add_action( 'init', 'register_block_core_query' );
/**
* Traverse the tree of blocks looking for any plugin block (i.e., a block from
* an installed plugin) inside a Query block with the enhanced pagination
* enabled. If at least one is found, the enhanced pagination is effectively
* disabled to prevent any potential incompatibilities.
*
* @since 6.4.0
*
* @param array $parsed_block The block being rendered.
* @return string Returns the parsed block, unmodified.
*/
function block_core_query_disable_enhanced_pagination( $parsed_block ) {
static $enhanced_query_stack = array();
static $dirty_enhanced_queries = array();
static $render_query_callback = null;
$block_name = $parsed_block['blockName'];
$block_type = WP_Block_Type_Registry::get_instance()->get_registered( $block_name );
$has_enhanced_pagination = isset( $parsed_block['attrs']['enhancedPagination'] ) && true === $parsed_block['attrs']['enhancedPagination'] && isset( $parsed_block['attrs']['queryId'] );
/*
* Client side navigation can be true in two states:
* - supports.interactivity = true;
* - supports.interactivity.clientNavigation = true;
*/
$supports_client_navigation = ( isset( $block_type->supports['interactivity']['clientNavigation'] ) && true === $block_type->supports['interactivity']['clientNavigation'] )
|| ( isset( $block_type->supports['interactivity'] ) && true === $block_type->supports['interactivity'] );
if ( 'core/query' === $block_name && $has_enhanced_pagination ) {
$enhanced_query_stack[] = $parsed_block['attrs']['queryId'];
if ( ! isset( $render_query_callback ) ) {
/**
* Filter that disables the enhanced pagination feature during block
* rendering when a plugin block has been found inside. It does so
* by adding an attribute called `data-wp-navigation-disabled` which
* is later handled by the front-end logic.
*
* @param string $content The block content.
* @param array $block The full block, including name and attributes.
* @return string Returns the modified output of the query block.
*/
$render_query_callback = static function ( $content, $block ) use ( &$enhanced_query_stack, &$dirty_enhanced_queries, &$render_query_callback ) {
$has_enhanced_pagination = isset( $block['attrs']['enhancedPagination'] ) && true === $block['attrs']['enhancedPagination'] && isset( $block['attrs']['queryId'] );
if ( ! $has_enhanced_pagination ) {
return $content;
}
if ( isset( $dirty_enhanced_queries[ $block['attrs']['queryId'] ] ) ) {
// Disable navigation in the router store config.
wp_interactivity_config( 'core/router', array( 'clientNavigationDisabled' => true ) );
$dirty_enhanced_queries[ $block['attrs']['queryId'] ] = null;
}
array_pop( $enhanced_query_stack );
if ( empty( $enhanced_query_stack ) ) {
remove_filter( 'render_block_core/query', $render_query_callback );
$render_query_callback = null;
}
return $content;
};
add_filter( 'render_block_core/query', $render_query_callback, 10, 2 );
}
} elseif (
! empty( $enhanced_query_stack ) &&
isset( $block_name ) &&
( ! $supports_client_navigation )
) {
foreach ( $enhanced_query_stack as $query_id ) {
$dirty_enhanced_queries[ $query_id ] = true;
}
}
return $parsed_block;
}
add_filter( 'render_block_data', 'block_core_query_disable_enhanced_pagination', 10, 1 );