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<?php |
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/** |
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* Server-side rendering of the `core/legacy-widget` block. |
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* |
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* @package WordPress |
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*/ |
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|
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/** |
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* Returns the result of rendering a widget having its instance id. |
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* |
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* @param string $id Widget id. |
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* |
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* @return string Returns the rendered widget as a string. |
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*/ |
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function gutenberg_render_widget_by_id( $id ) { |
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// Code extracted from src/wp-includes/widgets.php dynamic_sidebar function. |
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// Todo: When merging to core extract this part of dynamic_sidebar into its own function. |
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global $wp_registered_widgets; |
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|
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if ( ! isset( $wp_registered_widgets[ $id ] ) ) { |
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return false; |
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} |
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$params = array_merge( |
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array( |
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array_merge( |
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array( |
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'before_widget' => '<div class="widget %s">', |
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'after_widget' => '</div>', |
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'before_title' => '<h2 class="widgettitle">', |
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'after_title' => '</h2>', |
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), |
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array( |
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'widget_id' => $id, |
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'widget_name' => $wp_registered_widgets[ $id ]['name'], |
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) |
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), |
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), |
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(array) $wp_registered_widgets[ $id ]['params'] |
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); |
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|
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// Substitute HTML id and class attributes into before_widget. |
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$classname_ = ''; |
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foreach ( (array) $wp_registered_widgets[ $id ]['classname'] as $cn ) { |
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if ( is_string( $cn ) ) { |
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$classname_ .= '_' . $cn; |
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} elseif ( is_object( $cn ) ) { |
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$classname_ .= '_' . get_class( $cn ); |
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} |
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} |
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$classname_ = ltrim( $classname_, '_' ); |
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$params[0]['before_widget'] = sprintf( $params[0]['before_widget'], $id, $classname_ ); |
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|
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$params = apply_filters( 'dynamic_sidebar_params', $params ); |
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$callback = $wp_registered_widgets[ $id ]['callback']; |
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do_action( 'dynamic_sidebar', $wp_registered_widgets[ $id ] ); |
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|
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if ( is_callable( $callback ) ) { |
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ob_start(); |
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call_user_func_array( $callback, $params ); |
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return ob_get_clean(); |
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} |
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return false; |
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} |
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|
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/** |
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* Renders the `core/legacy-widget` block on server. |
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* |
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* @see WP_Widget |
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* |
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* @param array $attributes The block attributes. |
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* |
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* @return string Returns the post content with the legacy widget added. |
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*/ |
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function gutenberg_render_block_legacy_widget( $attributes ) { |
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$id = null; |
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$widget_class = null; |
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if ( isset( $attributes['id'] ) ) { |
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$id = $attributes['id']; |
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} |
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if ( isset( $attributes['widgetClass'] ) ) { |
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$widget_class = $attributes['widgetClass']; |
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} |
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|
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if ( $id ) { |
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return gutenberg_render_widget_by_id( $id ); |
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} |
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if ( ! $widget_class ) { |
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return ''; |
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} |
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|
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ob_start(); |
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$instance = null; |
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if ( isset( $attributes['instance'] ) ) { |
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$instance = $attributes['instance']; |
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} |
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the_widget( $widget_class, $instance ); |
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return ob_get_clean(); |
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} |
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|
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/** |
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* Register legacy widget block. |
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*/ |
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function gutenberg_register_block_core_legacy_widget() { |
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register_block_type( |
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'core/legacy-widget', |
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array( |
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'attributes' => array( |
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'widgetClass' => array( |
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'type' => 'string', |
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), |
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'id' => array( |
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'type' => 'string', |
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), |
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'idBase' => array( |
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'type' => 'string', |
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), |
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'number' => array( |
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'type' => 'number', |
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), |
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'instance' => array( |
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'type' => 'object', |
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), |
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), |
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'render_callback' => 'gutenberg_render_block_legacy_widget', |
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) |
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); |
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} |
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|
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add_action( 'init', 'gutenberg_register_block_core_legacy_widget', 20 ); |
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|
