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<?php |
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/** |
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* Server-side rendering of the `core/pages` 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 submenu visibility value with backward compatibility |
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* for the deprecated openSubmenusOnClick attribute. |
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* |
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* @since 7.0.0 |
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* |
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* @param array $context Block context from parent Navigation block. |
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* @return string The visibility mode: 'hover', 'click', or 'always'. |
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*/ |
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function gutenberg_block_core_page_list_get_submenu_visibility( $context ) { |
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$deprecated_open_submenus_on_click = $context['openSubmenusOnClick'] ?? null; |
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|
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// For backward compatibility, prioritize the legacy attribute if present. If it has been loaded and saved in the editor, then |
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// the deprecated attribute will be replaced by submenuVisibility. |
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if ( null !== $deprecated_open_submenus_on_click ) { |
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// Convert boolean to string: true -> 'click', false -> 'hover'. |
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return ! empty( $deprecated_open_submenus_on_click ) ? 'click' : 'hover'; |
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} |
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|
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$submenu_visibility = $context['submenuVisibility'] ?? null; |
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|
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// Use submenuVisibility for migrated/new blocks. |
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return $submenu_visibility ?? 'hover'; |
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} |
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|
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/** |
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* Build an array with CSS classes and inline styles defining the colors |
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* which will be applied to the pages markup in the front-end when it is a descendant of navigation. |
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* |
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* @since 5.8.0 |
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* |
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* @param array $attributes Block attributes. |
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* @param array $context Navigation block context. |
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* @return array Colors CSS classes and inline styles. |
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*/ |
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function gutenberg_block_core_page_list_build_css_colors( $attributes, $context ) { |
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$colors = array( |
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'css_classes' => array(), |
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'inline_styles' => '', |
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'overlay_css_classes' => array(), |
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'overlay_inline_styles' => '', |
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); |
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|
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// Text color. |
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$has_named_text_color = array_key_exists( 'textColor', $context ); |
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$has_picked_text_color = array_key_exists( 'customTextColor', $context ); |
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$has_custom_text_color = isset( $context['style']['color']['text'] ); |
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|
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// If has text color. |
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if ( $has_custom_text_color || $has_picked_text_color || $has_named_text_color ) { |
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// Add has-text-color class. |
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$colors['css_classes'][] = 'has-text-color'; |
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} |
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|
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if ( $has_named_text_color ) { |
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// Add the color class. |
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$colors['css_classes'][] = sprintf( 'has-%s-color', _wp_to_kebab_case( $context['textColor'] ) ); |
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} elseif ( $has_picked_text_color ) { |
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$colors['inline_styles'] .= sprintf( 'color: %s;', $context['customTextColor'] ); |
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} elseif ( $has_custom_text_color ) { |
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// Add the custom color inline style. |
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$colors['inline_styles'] .= sprintf( 'color: %s;', $context['style']['color']['text'] ); |
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} |
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|
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// Background color. |
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$has_named_background_color = array_key_exists( 'backgroundColor', $context ); |
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$has_picked_background_color = array_key_exists( 'customBackgroundColor', $context ); |
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$has_custom_background_color = isset( $context['style']['color']['background'] ); |
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|
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// If has background color. |
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if ( $has_custom_background_color || $has_picked_background_color || $has_named_background_color ) { |
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// Add has-background class. |
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$colors['css_classes'][] = 'has-background'; |
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} |
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|
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if ( $has_named_background_color ) { |
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// Add the background-color class. |
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$colors['css_classes'][] = sprintf( 'has-%s-background-color', _wp_to_kebab_case( $context['backgroundColor'] ) ); |
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} elseif ( $has_picked_background_color ) { |
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$colors['inline_styles'] .= sprintf( 'background-color: %s;', $context['customBackgroundColor'] ); |
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} elseif ( $has_custom_background_color ) { |
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// Add the custom background-color inline style. |
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$colors['inline_styles'] .= sprintf( 'background-color: %s;', $context['style']['color']['background'] ); |
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} |
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|
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// Overlay text color. |
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$has_named_overlay_text_color = array_key_exists( 'overlayTextColor', $context ); |
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$has_picked_overlay_text_color = array_key_exists( 'customOverlayTextColor', $context ); |
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|
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// If it has a text color. |
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if ( $has_named_overlay_text_color || $has_picked_overlay_text_color ) { |
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$colors['overlay_css_classes'][] = 'has-text-color'; |
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} |
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|
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// Give overlay colors priority, fall back to Navigation block colors, then global styles. |
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if ( $has_named_overlay_text_color ) { |
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$colors['overlay_css_classes'][] = sprintf( 'has-%s-color', _wp_to_kebab_case( $context['overlayTextColor'] ) ); |
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} elseif ( $has_picked_overlay_text_color ) { |
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$colors['overlay_inline_styles'] .= sprintf( 'color: %s;', $context['customOverlayTextColor'] ); |
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} |
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|
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// Overlay background colors. |
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$has_named_overlay_background_color = array_key_exists( 'overlayBackgroundColor', $context ); |
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$has_picked_overlay_background_color = array_key_exists( 'customOverlayBackgroundColor', $context ); |
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|
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// If has background color. |
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if ( $has_named_overlay_background_color || $has_picked_overlay_background_color ) { |
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$colors['overlay_css_classes'][] = 'has-background'; |
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} |
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|
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if ( $has_named_overlay_background_color ) { |
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$colors['overlay_css_classes'][] = sprintf( 'has-%s-background-color', _wp_to_kebab_case( $context['overlayBackgroundColor'] ) ); |
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} elseif ( $has_picked_overlay_background_color ) { |
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$colors['overlay_inline_styles'] .= sprintf( 'background-color: %s;', $context['customOverlayBackgroundColor'] ); |
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} |
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|
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return $colors; |
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} |
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/** |
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* Outputs Page list markup from an array of pages with nested children. |
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* |
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* @since 5.8.0 |
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* |
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* @param string $submenu_visibility The submenu visibility mode: 'hover', 'click', or 'always'. |
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* @param boolean $show_submenu_icons Whether to show submenu indicator icons. |
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* @param boolean $is_navigation_child If block is a child of Navigation block. |
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* @param array $nested_pages The array of nested pages. |
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* @param boolean $is_nested Whether the submenu is nested or not. |
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* @param array $active_page_ancestor_ids An array of ancestor ids for active page. |
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* @param array $colors Color information for overlay styles. |
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* @param integer $depth The nesting depth. |
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* |
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* @return string List markup. |
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*/ |
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function gutenberg_block_core_page_list_render_nested_page_list( $submenu_visibility, $show_submenu_icons, $is_navigation_child, $nested_pages, $is_nested, $active_page_ancestor_ids = array(), $colors = array(), $depth = 0 ) { |
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if ( empty( $nested_pages ) ) { |
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return; |
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} |
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$front_page_id = (int) get_option( 'page_on_front' ); |
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$markup = ''; |
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|
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// Compute visibility mode flags once |
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$open_on_click = 'click' === $submenu_visibility; |
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$open_on_hover = 'hover' === $submenu_visibility; |
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$open_always = 'always' === $submenu_visibility; |
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|
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foreach ( (array) $nested_pages as $page ) { |
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$css_class = $page['is_active'] ? ' current-menu-item' : ''; |
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$aria_current = $page['is_active'] ? ' aria-current="page"' : ''; |
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$style_attribute = ''; |
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|
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$css_class .= in_array( $page['page_id'], $active_page_ancestor_ids, true ) ? ' current-menu-ancestor' : ''; |
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if ( isset( $page['children'] ) ) { |
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$css_class .= ' has-child'; |
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} |
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|
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if ( $is_navigation_child ) { |
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$css_class .= ' wp-block-navigation-item'; |
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|
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// Class assignment logic matches JS editor rendering in page-list-item/edit.js |
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// Note: elseif ensures open-on-hover-click is mutually exclusive with open-on-click |
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if ( $open_on_click ) { |
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$css_class .= ' open-on-click'; |
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} elseif ( $open_on_hover && $show_submenu_icons ) { |
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$css_class .= ' open-on-hover-click'; |
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} elseif ( $open_always ) { |
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$css_class .= ' open-always'; |
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} |
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} |
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|
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$navigation_child_content_class = $is_navigation_child ? ' wp-block-navigation-item__content' : ''; |
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|
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// If this is the first level of submenus, include the overlay colors. |
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if ( ( ( 0 < $depth && ! $is_nested ) || $is_nested ) && isset( $colors['overlay_css_classes'], $colors['overlay_inline_styles'] ) ) { |
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$css_class .= ' ' . trim( implode( ' ', $colors['overlay_css_classes'] ) ); |
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if ( '' !== $colors['overlay_inline_styles'] ) { |
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$style_attribute = sprintf( ' style="%s"', esc_attr( $colors['overlay_inline_styles'] ) ); |
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} |
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} |
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|
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if ( (int) $page['page_id'] === $front_page_id ) { |
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$css_class .= ' menu-item-home'; |
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} |
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|
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$title = $page['title'] ? $page['title'] : __( '(no title)' ); |
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|
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$aria_label = sprintf( |
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/* translators: Accessibility text. %s: Parent page title. */ |
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__( '%s submenu' ), |
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wp_strip_all_tags( $title ) |
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); |
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|
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$markup .= '<li class="wp-block-pages-list__item' . esc_attr( $css_class ) . '"' . $style_attribute . '>'; |
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|
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if ( isset( $page['children'] ) && $is_navigation_child && $open_on_click ) { |
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$markup .= '<button aria-label="' . esc_attr( $aria_label ) . '" class="' . esc_attr( $navigation_child_content_class ) . ' wp-block-navigation-submenu__toggle" aria-expanded="false">' . wp_kses_post( $title ) . |
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'</button><span class="wp-block-page-list__submenu-icon wp-block-navigation__submenu-icon"><svg xmlns="http://www.w3.org/2000/svg" width="12" height="12" viewBox="0 0 12 12" fill="none" aria-hidden="true" focusable="false"><path d="M1.50002 4L6.00002 8L10.5 4" stroke-width="1.5"></path></svg></span>'; |
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} else { |
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$markup .= '<a class="wp-block-pages-list__item__link' . esc_attr( $navigation_child_content_class ) . '" href="' . esc_url( $page['link'] ) . '"' . $aria_current . '>' . wp_kses_post( $title ) . '</a>'; |
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} |
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|
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if ( isset( $page['children'] ) ) { |
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if ( $is_navigation_child && $show_submenu_icons && ! $open_on_click ) { |
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$markup .= '<button aria-label="' . esc_attr( $aria_label ) . '" class="wp-block-navigation__submenu-icon wp-block-navigation-submenu__toggle" aria-expanded="false">'; |
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$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>'; |
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$markup .= '</button>'; |
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} |
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$markup .= '<ul class="wp-block-navigation__submenu-container">'; |
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$markup .= gutenberg_block_core_page_list_render_nested_page_list( $submenu_visibility, $show_submenu_icons, $is_navigation_child, $page['children'], $is_nested, $active_page_ancestor_ids, $colors, $depth + 1 ); |
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$markup .= '</ul>'; |
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} |
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$markup .= '</li>'; |
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} |
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return $markup; |
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} |
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|
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/** |
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* Outputs nested array of pages |
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* |
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* @since 5.8.0 |
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* |
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* @param array $current_level The level being iterated through. |
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* @param array $children The children grouped by parent post ID. |
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* |
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* @return array The nested array of pages. |
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*/ |
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function gutenberg_block_core_page_list_nest_pages( $current_level, $children ) { |
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if ( empty( $current_level ) ) { |
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return; |
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} |
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foreach ( (array) $current_level as $key => $current ) { |
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if ( isset( $children[ $key ] ) ) { |
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$current_level[ $key ]['children'] = gutenberg_block_core_page_list_nest_pages( $children[ $key ], $children ); |
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} |
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} |
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return $current_level; |
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} |
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|
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/** |
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* Renders the `core/page-list` block on server. |
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* |
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* @since 5.8.0 |
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* |
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* @param array $attributes The block attributes. |
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* @param string $content The saved content. |
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* @param WP_Block $block The parsed block. |
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* |
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* @return string Returns the page list markup. |
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*/ |
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function gutenberg_render_block_core_page_list( $attributes, $content, $block ) { |
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static $block_id = 0; |
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++$block_id; |
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|
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$parent_page_id = $attributes['parentPageID']; |
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$is_nested = ! empty( $block->context['core/isInsideSubmenu'] ); |
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|
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$all_pages = get_pages( |
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array( |
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'sort_column' => 'menu_order,post_title', |
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'order' => 'asc', |
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) |
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); |
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|
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// If there are no pages, there is nothing to show. |
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if ( empty( $all_pages ) ) { |
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return; |
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} |
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|
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$top_level_pages = array(); |
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|
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$pages_with_children = array(); |
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|
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$active_page_ancestor_ids = array(); |
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|
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foreach ( (array) $all_pages as $page ) { |
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$is_active = ! empty( $page->ID ) && ( get_queried_object_id() === $page->ID ); |
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|
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if ( $is_active ) { |
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$active_page_ancestor_ids = get_post_ancestors( $page->ID ); |
| 287 |
} |
| 288 |
|
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if ( $page->post_parent ) { |
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$pages_with_children[ $page->post_parent ][ $page->ID ] = array( |
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'page_id' => $page->ID, |
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'title' => $page->post_title, |
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'link' => get_permalink( $page ), |
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'is_active' => $is_active, |
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); |
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} else { |
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$top_level_pages[ $page->ID ] = array( |
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'page_id' => $page->ID, |
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'title' => $page->post_title, |
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'link' => get_permalink( $page ), |
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'is_active' => $is_active, |
| 302 |
); |
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|
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} |
| 305 |
} |
| 306 |
|
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$colors = gutenberg_block_core_page_list_build_css_colors( $attributes, $block->context ); |
| 308 |
$classes = array_merge( |
| 309 |
$colors['css_classes'] |
| 310 |
); |
| 311 |
|
| 312 |
$style_attribute = $colors['inline_styles']; |
| 313 |
$css_classes = trim( implode( ' ', $classes ) ); |
| 314 |
|
| 315 |
$nested_pages = gutenberg_block_core_page_list_nest_pages( $top_level_pages, $pages_with_children ); |
| 316 |
|
| 317 |
if ( 0 !== $parent_page_id ) { |
| 318 |
// If the parent page has no child pages, there is nothing to show. |
| 319 |
if ( ! array_key_exists( $parent_page_id, $pages_with_children ) ) { |
| 320 |
return; |
| 321 |
} |
| 322 |
|
| 323 |
$nested_pages = gutenberg_block_core_page_list_nest_pages( |
| 324 |
$pages_with_children[ $parent_page_id ], |
| 325 |
$pages_with_children |
| 326 |
); |
| 327 |
} |
| 328 |
|
| 329 |
$is_navigation_child = array_key_exists( 'showSubmenuIcon', $block->context ); |
| 330 |
|
| 331 |
// Get submenu visibility with backward compatibility for openSubmenusOnClick. |
| 332 |
$submenu_visibility = $is_navigation_child ? gutenberg_block_core_page_list_get_submenu_visibility( $block->context ) : 'hover'; |
| 333 |
|
| 334 |
$show_submenu_icons = array_key_exists( 'showSubmenuIcon', $block->context ) ? $block->context['showSubmenuIcon'] : false; |
| 335 |
|
| 336 |
$wrapper_markup = $is_nested ? '%2$s' : '<ul %1$s>%2$s</ul>'; |
| 337 |
|
| 338 |
$items_markup = gutenberg_block_core_page_list_render_nested_page_list( $submenu_visibility, $show_submenu_icons, $is_navigation_child, $nested_pages, $is_nested, $active_page_ancestor_ids, $colors ); |
| 339 |
|
| 340 |
$wrapper_attributes = get_block_wrapper_attributes( |
| 341 |
array( |
| 342 |
'class' => $css_classes, |
| 343 |
'style' => $style_attribute, |
| 344 |
) |
| 345 |
); |
| 346 |
|
| 347 |
return sprintf( |
| 348 |
$wrapper_markup, |
| 349 |
$wrapper_attributes, |
| 350 |
$items_markup |
| 351 |
); |
| 352 |
} |
| 353 |
|
| 354 |
/** |
| 355 |
* Registers the `core/pages` block on server. |
| 356 |
* |
| 357 |
* @since 5.8.0 |
| 358 |
*/ |
| 359 |
function gutenberg_register_block_core_page_list() { |
| 360 |
register_block_type_from_metadata( |
| 361 |
__DIR__ . '/page-list', |
| 362 |
array( |
| 363 |
'render_callback' => 'gutenberg_render_block_core_page_list', |
| 364 |
) |
| 365 |
); |
| 366 |
} |
| 367 |
add_action( 'init', 'gutenberg_register_block_core_page_list', 20 ); |
| 368 |
|
