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- <?php
- /**
- * Server-side rendering of the `core/pages` block.
- *
- * @package WordPress
- */
- /**
- * Build an array with CSS classes and inline styles defining the colors
- * which will be applied to the pages markup in the front-end when it is a descendant of navigation.
- *
- * @param array $attributes Block attributes.
- * @param array $context Navigation block context.
- * @return array Colors CSS classes and inline styles.
- */
- function block_core_page_list_build_css_colors( $attributes, $context ) {
- $colors = array(
- 'css_classes' => array(),
- 'inline_styles' => '',
- 'overlay_css_classes' => array(),
- 'overlay_inline_styles' => '',
- );
- // Text color.
- $has_named_text_color = array_key_exists( 'textColor', $context );
- $has_picked_text_color = array_key_exists( 'customTextColor', $context );
- $has_custom_text_color = isset( $context['style']['color']['text'] );
- // If has text color.
- if ( $has_custom_text_color || $has_picked_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', _wp_to_kebab_case( $context['textColor'] ) );
- } elseif ( $has_picked_text_color ) {
- $colors['inline_styles'] .= sprintf( 'color: %s;', $context['customTextColor'] );
- } 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_picked_background_color = array_key_exists( 'customBackgroundColor', $context );
- $has_custom_background_color = isset( $context['style']['color']['background'] );
- // If has background color.
- if ( $has_custom_background_color || $has_picked_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', _wp_to_kebab_case( $context['backgroundColor'] ) );
- } elseif ( $has_picked_background_color ) {
- $colors['inline_styles'] .= sprintf( 'background-color: %s;', $context['customBackgroundColor'] );
- } elseif ( $has_custom_background_color ) {
- // Add the custom background-color inline style.
- $colors['inline_styles'] .= sprintf( 'background-color: %s;', $context['style']['color']['background'] );
- }
- // Overlay text color.
- $has_named_overlay_text_color = array_key_exists( 'overlayTextColor', $context );
- $has_picked_overlay_text_color = array_key_exists( 'customOverlayTextColor', $context );
- // If it has a text color.
- if ( $has_named_overlay_text_color || $has_picked_overlay_text_color ) {
- $colors['overlay_css_classes'][] = 'has-text-color';
- }
- // Give overlay colors priority, fall back to Navigation block colors, then global styles.
- if ( $has_named_overlay_text_color ) {
- $colors['overlay_css_classes'][] = sprintf( 'has-%s-color', _wp_to_kebab_case( $context['overlayTextColor'] ) );
- } elseif ( $has_picked_overlay_text_color ) {
- $colors['overlay_inline_styles'] .= sprintf( 'color: %s;', $context['customOverlayTextColor'] );
- }
- // Overlay background colors.
- $has_named_overlay_background_color = array_key_exists( 'overlayBackgroundColor', $context );
- $has_picked_overlay_background_color = array_key_exists( 'customOverlayBackgroundColor', $context );
- // If has background color.
- if ( $has_named_overlay_background_color || $has_picked_overlay_background_color ) {
- $colors['overlay_css_classes'][] = 'has-background';
- }
- if ( $has_named_overlay_background_color ) {
- $colors['overlay_css_classes'][] = sprintf( 'has-%s-background-color', _wp_to_kebab_case( $context['overlayBackgroundColor'] ) );
- } elseif ( $has_picked_overlay_background_color ) {
- $colors['overlay_inline_styles'] .= sprintf( 'background-color: %s;', $context['customOverlayBackgroundColor'] );
- }
- 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: %s;',
- wp_get_typography_font_size_value(
- array(
- 'size' => $context['style']['typography']['fontSize'],
- )
- )
- );
- }
- return $font_sizes;
- }
- /**
- * Outputs Page list markup from an array of pages with nested children.
- *
- * @param boolean $open_submenus_on_click Whether to open submenus on click instead of hover.
- * @param boolean $show_submenu_icons Whether to show submenu indicator icons.
- * @param boolean $is_navigation_child If block is a child of Navigation block.
- * @param array $nested_pages The array of nested pages.
- * @param array $active_page_ancestor_ids An array of ancestor ids for active page.
- * @param array $colors Color information for overlay styles.
- * @param integer $depth The nesting depth.
- *
- * @return string List markup.
- */
- function block_core_page_list_render_nested_page_list( $open_submenus_on_click, $show_submenu_icons, $is_navigation_child, $nested_pages, $active_page_ancestor_ids = array(), $colors = array(), $depth = 0 ) {
- if ( empty( $nested_pages ) ) {
- return;
- }
- $markup = '';
- foreach ( (array) $nested_pages as $page ) {
- $css_class = $page['is_active'] ? ' current-menu-item' : '';
- $aria_current = $page['is_active'] ? ' aria-current="page"' : '';
- $style_attribute = '';
- $css_class .= in_array( $page['page_id'], $active_page_ancestor_ids, true ) ? ' current-menu-ancestor' : '';
- if ( isset( $page['children'] ) ) {
- $css_class .= ' has-child';
- }
- if ( $is_navigation_child ) {
- $css_class .= ' wp-block-navigation-item';
- if ( $open_submenus_on_click ) {
- $css_class .= ' open-on-click';
- } elseif ( $show_submenu_icons ) {
- $css_class .= ' open-on-hover-click';
- }
- }
- $navigation_child_content_class = $is_navigation_child ? ' wp-block-navigation-item__content' : '';
- // If this is the first level of submenus, include the overlay colors.
- if ( 1 === $depth && isset( $colors['overlay_css_classes'], $colors['overlay_inline_styles'] ) ) {
- $css_class .= ' ' . trim( implode( ' ', $colors['overlay_css_classes'] ) );
- if ( '' !== $colors['overlay_inline_styles'] ) {
- $style_attribute = sprintf( ' style="%s"', esc_attr( $colors['overlay_inline_styles'] ) );
- }
- }
- $front_page_id = (int) get_option( 'page_on_front' );
- if ( (int) $page['page_id'] === $front_page_id ) {
- $css_class .= ' menu-item-home';
- }
- $title = wp_kses_post( $page['title'] );
- $aria_label = sprintf(
- /* translators: Accessibility text. %s: Parent page title. */
- __( '%s submenu' ),
- wp_strip_all_tags( $title )
- );
- $markup .= '<li class="wp-block-pages-list__item' . esc_attr( $css_class ) . '"' . $style_attribute . '>';
- if ( isset( $page['children'] ) && $is_navigation_child && $open_submenus_on_click ) {
- $markup .= '<button aria-label="' . esc_attr( $aria_label ) . '" class="' . esc_attr( $navigation_child_content_class ) . ' wp-block-navigation-submenu__toggle" aria-expanded="false">' . esc_html( $title ) .
- '</button>' . '<span class="wp-block-page-list__submenu-icon wp-block-navigation__submenu-icon"><svg xmlns="http://www.w3.org/2000/svg" width="12" height="12" viewBox="0 0 12 12" fill="none" aria-hidden="true" focusable="false"><path d="M1.50002 4L6.00002 8L10.5 4" stroke-width="1.5"></path></svg></span>';
- } else {
- $markup .= '<a class="wp-block-pages-list__item__link' . esc_attr( $navigation_child_content_class ) . '" href="' . esc_url( $page['link'] ) . '"' . $aria_current . '>' . $title . '</a>';
- }
- if ( isset( $page['children'] ) ) {
- if ( $is_navigation_child && $show_submenu_icons && ! $open_submenus_on_click ) {
- $markup .= '<button aria-label="' . esc_attr( $aria_label ) . '" class="wp-block-navigation__submenu-icon wp-block-navigation-submenu__toggle" aria-expanded="false">';
- $markup .= '<svg xmlns="http://www.w3.org/2000/svg" width="12" height="12" viewBox="0 0 12 12" fill="none" aria-hidden="true" focusable="false"><path d="M1.50002 4L6.00002 8L10.5 4" stroke-width="1.5"></path></svg>';
- $markup .= '</button>';
- }
- $markup .= '<ul class="submenu-container';
- // Extra classname is added when the block is a child of Navigation.
- if ( $is_navigation_child ) {
- $markup .= ' wp-block-navigation__submenu-container';
- }
- $markup .= '">' . block_core_page_list_render_nested_page_list( $open_submenus_on_click, $show_submenu_icons, $is_navigation_child, $page['children'], $active_page_ancestor_ids, $colors, $depth + 1 ) . '</ul>';
- }
- $markup .= '</li>';
- }
- 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 block_core_page_list_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'] = block_core_page_list_nest_pages( $children[ $key ], $children );
- }
- }
- return $current_level;
- }
- /**
- * Renders the `core/page-list` block on server.
- *
- * @param array $attributes The block attributes.
- * @param string $content The saved content.
- * @param WP_Block $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++;
- $all_pages = get_pages(
- array(
- 'sort_column' => 'menu_order,post_title',
- 'order' => 'asc',
- )
- );
- // If there are no pages, there is nothing to show.
- if ( empty( $all_pages ) ) {
- return;
- }
- $top_level_pages = array();
- $pages_with_children = array();
- $active_page_ancestor_ids = array();
- foreach ( (array) $all_pages as $page ) {
- $is_active = ! empty( $page->ID ) && ( get_the_ID() === $page->ID );
- if ( $is_active ) {
- $active_page_ancestor_ids = get_post_ancestors( $page->ID );
- }
- if ( $page->post_parent ) {
- $pages_with_children[ $page->post_parent ][ $page->ID ] = array(
- 'page_id' => $page->ID,
- 'title' => $page->post_title,
- 'link' => get_permalink( $page->ID ),
- 'is_active' => $is_active,
- );
- } else {
- $top_level_pages[ $page->ID ] = array(
- 'page_id' => $page->ID,
- 'title' => $page->post_title,
- 'link' => get_permalink( $page->ID ),
- 'is_active' => $is_active,
- );
- }
- }
- $colors = block_core_page_list_build_css_colors( $attributes, $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 ) );
- $nested_pages = block_core_page_list_nest_pages( $top_level_pages, $pages_with_children );
- $is_navigation_child = array_key_exists( 'showSubmenuIcon', $block->context );
- $open_submenus_on_click = array_key_exists( 'openSubmenusOnClick', $block->context ) ? $block->context['openSubmenusOnClick'] : false;
- $show_submenu_icons = array_key_exists( 'showSubmenuIcon', $block->context ) ? $block->context['showSubmenuIcon'] : false;
- $wrapper_markup = '<ul %1$s>%2$s</ul>';
- $items_markup = block_core_page_list_render_nested_page_list( $open_submenus_on_click, $show_submenu_icons, $is_navigation_child, $nested_pages, $active_page_ancestor_ids, $colors );
- $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' );
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