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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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* 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_from_metadata( |
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__DIR__ . '/legacy-widget', |
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array( |
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'render_callback' => 'gutenberg_render_block_core_legacy_widget', |
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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 `core/legacy-widget` block on server. |
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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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* @see WP_Widget |
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*/ |
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function gutenberg_render_block_core_legacy_widget( $attributes ) { |
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global $wp_widget_factory, $wp_registered_sidebars; |
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|
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if ( isset( $attributes['widgetId'] ) ) { |
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return __( 'Rendering legacy widget block using widgetId is unsupported.', 'gutenberg' ); |
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} |
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$widget_id = - 1; |
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|
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if ( ! isset( $attributes['sidebarId'] ) || ! isset( $wp_registered_sidebars[ $attributes['sidebarId'] ] ) ) { |
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return ''; |
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} |
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$sidebar_id = $attributes['sidebarId']; |
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|
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if ( ! isset( $attributes['widgetClass'] ) || ! isset( $wp_widget_factory->widgets[ $attributes['widgetClass'] ] ) ) { |
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return ''; |
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} |
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$widget_class = $attributes['widgetClass']; |
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$widget_obj = $wp_widget_factory->widgets[ $widget_class ]; |
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|
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$instance = isset( $attributes['instance'] ) ? $attributes['instance'] : null; |
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|
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$widget_params = array_merge( |
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array( |
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'classname' => array(), |
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), |
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$widget_obj->widget_options |
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); |
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|
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/** This filter is documented in wp-includes/widgets/widgets.php */ |
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do_action( 'dynamic_sidebar_before', $sidebar_id, true ); |
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$sidebar = $wp_registered_sidebars[ $sidebar_id ]; |
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|
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$params = array_merge( |
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array( |
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array_merge( |
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$sidebar, |
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array( |
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'widget_id' => $widget_id, |
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'widget_name' => $widget_obj->name, |
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) |
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), |
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), |
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array( |
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$instance, |
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) |
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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) $widget_params['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'], $widget_id, $classname_ ); |
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|
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/** This filter is documented in wp-includes/widgets/widgets.php */ |
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$params = apply_filters( 'dynamic_sidebar_params', $params ); |
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|
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/** This filter is documented in wp-includes/widgets/widgets.php */ |
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do_action( 'dynamic_sidebar', $widget_params ); |
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|
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ob_start(); |
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$widget_obj->_set( - 1 ); |
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call_user_func_array( array( $widget_obj, 'widget' ), $params ); |
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|
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return ob_get_clean(); |
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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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|
