array(), 'inline_styles' => '', ); // Text color. $has_named_text_color = array_key_exists( 'textColor', $context ); $has_custom_text_color = isset( $context['style']['color']['text'] ); // If has text color. if ( $has_custom_text_color || $has_named_text_color ) { // Add has-text-color class. $colors['css_classes'][] = 'has-text-color'; } if ( $has_named_text_color ) { // Add the color class. $colors['css_classes'][] = sprintf( 'has-%s-color', $context['textColor'] ); } elseif ( $has_custom_text_color ) { // Add the custom color inline style. $colors['inline_styles'] .= sprintf( 'color: %s;', $context['style']['color']['text'] ); } // Background color. $has_named_background_color = array_key_exists( 'backgroundColor', $context ); $has_custom_background_color = isset( $context['style']['color']['background'] ); // If has background color. if ( $has_custom_background_color || $has_named_background_color ) { // Add has-background class. $colors['css_classes'][] = 'has-background'; } if ( $has_named_background_color ) { // Add the background-color class. $colors['css_classes'][] = sprintf( 'has-%s-background-color', $context['backgroundColor'] ); } elseif ( $has_custom_background_color ) { // Add the custom background-color inline style. $colors['inline_styles'] .= sprintf( 'background-color: %s;', $context['style']['color']['background'] ); } return $colors; } /** * Build an array with CSS classes and inline styles defining the font sizes * which will be applied to the pages markup in the front-end when it is a descendant of navigation. * * @param array $context Navigation block context. * @return array Font size CSS classes and inline styles. */ function block_core_page_list_build_css_font_sizes( $context ) { // CSS classes. $font_sizes = array( 'css_classes' => array(), 'inline_styles' => '', ); $has_named_font_size = array_key_exists( 'fontSize', $context ); $has_custom_font_size = isset( $context['style']['typography']['fontSize'] ); if ( $has_named_font_size ) { // Add the font size class. $font_sizes['css_classes'][] = sprintf( 'has-%s-font-size', $context['fontSize'] ); } elseif ( $has_custom_font_size ) { // Add the custom font size inline style. $font_sizes['inline_styles'] = sprintf( 'font-size: %spx;', $context['style']['typography']['fontSize'] ); } return $font_sizes; } /** * Outputs Page list markup from an array of pages with nested children. * * @param array $nested_pages The array of nested pages. * * @return string List markup. */ function render_nested_page_list( $nested_pages ) { if ( empty( $nested_pages ) ) { return; } $markup = ''; foreach ( (array) $nested_pages as $page ) { $css_class = 'wp-block-pages-list__item'; if ( isset( $page['children'] ) ) { $css_class .= ' has-child'; } $markup .= '
  • '; $markup .= '' . wp_kses( $page['title'], wp_kses_allowed_html( 'post' ) ) . ''; if ( isset( $page['children'] ) ) { $markup .= ''; $markup .= ''; } $markup .= '
  • '; } return $markup; } /** * Outputs nested array of pages * * @param array $current_level The level being iterated through. * @param array $children The children grouped by parent post ID. * * @return array The nested array of pages. */ function nest_pages( $current_level, $children ) { if ( empty( $current_level ) ) { return; } foreach ( (array) $current_level as $key => $current ) { if ( isset( $children[ $key ] ) ) { $current_level[ $key ]['children'] = nest_pages( $children[ $key ], $children ); } } return $current_level; } /** * Renders the `core/page-list` block on server. * * @param array $attributes The block attributes. * @param array $content The saved content. * @param array $block The parsed block. * * @return string Returns the page list markup. */ function render_block_core_page_list( $attributes, $content, $block ) { static $block_id = 0; $block_id++; // TODO: When https://core.trac.wordpress.org/ticket/39037 REST API support for multiple orderby values is resolved, // update 'sort_column' to 'menu_order, post_title'. Sorting by both menu_order and post_title ensures a stable sort. // Otherwise with pages that have the same menu_order value, we can see different ordering depending on how DB // queries are constructed internally. For example we might see a different order when a limit is set to <499 // versus >= 500. $all_pages = get_pages( array( 'sort_column' => 'menu_order', 'order' => 'asc', ) ); $top_level_pages = array(); $pages_with_children = array(); foreach ( (array) $all_pages as $page ) { if ( $page->post_parent ) { $pages_with_children[ $page->post_parent ][ $page->ID ] = array( 'title' => $page->post_title, 'link' => get_permalink( $page->ID ), ); } else { $top_level_pages[ $page->ID ] = array( 'title' => $page->post_title, 'link' => get_permalink( $page->ID ), ); } } $nested_pages = nest_pages( $top_level_pages, $pages_with_children ); $wrapper_markup = ''; $items_markup = render_nested_page_list( $nested_pages ); $colors = block_core_page_list_build_css_colors( $block->context ); $font_sizes = block_core_page_list_build_css_font_sizes( $block->context ); $classes = array_merge( $colors['css_classes'], $font_sizes['css_classes'] ); $style_attribute = ( $colors['inline_styles'] . $font_sizes['inline_styles'] ); $css_classes = trim( implode( ' ', $classes ) ); if ( $block->context && $block->context['showSubmenuIcon'] ) { $css_classes .= ' show-submenu-icons'; } $wrapper_attributes = get_block_wrapper_attributes( array( 'class' => $css_classes, 'style' => $style_attribute, ) ); return sprintf( $wrapper_markup, $wrapper_attributes, $items_markup ); } /** * Registers the `core/pages` block on server. */ function register_block_core_page_list() { register_block_type_from_metadata( __DIR__ . '/page-list', array( 'render_callback' => 'render_block_core_page_list', ) ); } add_action( 'init', 'register_block_core_page_list' );