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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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* 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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* @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( $context ) { |
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$colors = array( |
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'css_classes' => array(), |
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'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_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 || $has_named_text_color ) { |
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// Add has-text-color class. |
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$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', $context['textColor'] ); |
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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_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 || $has_named_background_color ) { |
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// Add has-background class. |
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$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', $context['backgroundColor'] ); |
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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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return $colors; |
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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 font sizes |
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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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* @param array $context Navigation block context. |
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* @return array Font size CSS classes and inline styles. |
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*/ |
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function gutenberg_block_core_page_list_build_css_font_sizes( $context ) { |
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// CSS classes. |
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$font_sizes = array( |
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'css_classes' => array(), |
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'inline_styles' => '', |
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); |
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|
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$has_named_font_size = array_key_exists( 'fontSize', $context ); |
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$has_custom_font_size = isset( $context['style']['typography']['fontSize'] ); |
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|
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if ( $has_named_font_size ) { |
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// Add the font size class. |
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$font_sizes['css_classes'][] = sprintf( 'has-%s-font-size', $context['fontSize'] ); |
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} elseif ( $has_custom_font_size ) { |
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// Add the custom font size inline style. |
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$font_sizes['inline_styles'] = sprintf( 'font-size: %spx;', $context['style']['typography']['fontSize'] ); |
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} |
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|
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return $font_sizes; |
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} |
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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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* @param array $nested_pages The array of nested pages. |
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* |
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* @return string List markup. |
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*/ |
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function gutenberg_render_nested_page_list( $nested_pages ) { |
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if ( empty( $nested_pages ) ) { |
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return; |
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} |
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$markup = ''; |
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foreach ( (array) $nested_pages as $page ) { |
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$css_class = 'wp-block-pages-list__item'; |
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if ( isset( $page['children'] ) ) { |
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$css_class .= ' has-child'; |
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} |
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$markup .= '<li class="' . $css_class . '">'; |
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$markup .= '<a class="wp-block-pages-list__item__link" href="' . esc_url( $page['link'] ) . '">' . wp_kses( |
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$page['title'], |
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wp_kses_allowed_html( 'post' ) |
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) . '</a>'; |
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if ( isset( $page['children'] ) ) { |
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$markup .= '<span class="wp-block-page-list__submenu-icon"><svg xmlns="http://www.w3.org/2000/svg" width="12" height="12" viewBox="0 0 12 12" fill="none" role="img" 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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$markup .= '<ul class="submenu-container">' . gutenberg_render_nested_page_list( $page['children'] ) . '</ul>'; |
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} |
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$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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* @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_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_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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* @param array $attributes The block attributes. |
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* @param array $content The saved content. |
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* @param array $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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// TODO: When https://core.trac.wordpress.org/ticket/39037 REST API support for multiple orderby values is resolved, |
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// update 'sort_column' to 'menu_order, post_title'. Sorting by both menu_order and post_title ensures a stable sort. |
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// Otherwise with pages that have the same menu_order value, we can see different ordering depending on how DB |
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// queries are constructed internally. For example we might see a different order when a limit is set to <499 |
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// versus >= 500. |
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$all_pages = get_pages( |
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array( |
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'sort_column' => 'menu_order', |
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'order' => 'asc', |
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) |
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); |
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|
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$top_level_pages = array(); |
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|
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$pages_with_children = array(); |
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|
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foreach ( (array) $all_pages as $page ) { |
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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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'title' => $page->post_title, |
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'link' => get_permalink( $page->ID ), |
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); |
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} else { |
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$top_level_pages[ $page->ID ] = array( |
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'title' => $page->post_title, |
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'link' => get_permalink( $page->ID ), |
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); |
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|
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} |
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} |
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|
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$nested_pages = gutenberg_nest_pages( $top_level_pages, $pages_with_children ); |
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|
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$wrapper_markup = '<ul %1$s>%2$s</ul>'; |
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|
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$items_markup = gutenberg_render_nested_page_list( $nested_pages ); |
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|
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$colors = gutenberg_block_core_page_list_build_css_colors( $block->context ); |
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$font_sizes = gutenberg_block_core_page_list_build_css_font_sizes( $block->context ); |
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$classes = array_merge( |
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$colors['css_classes'], |
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$font_sizes['css_classes'] |
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); |
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$style_attribute = ( $colors['inline_styles'] . $font_sizes['inline_styles'] ); |
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$css_classes = trim( implode( ' ', $classes ) ); |
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|
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if ( $block->context && $block->context['showSubmenuIcon'] ) { |
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$css_classes .= ' show-submenu-icons'; |
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} |
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|
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$wrapper_attributes = get_block_wrapper_attributes( |
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array( |
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'class' => $css_classes, |
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'style' => $style_attribute, |
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) |
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); |
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|
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return sprintf( |
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$wrapper_markup, |
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$wrapper_attributes, |
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$items_markup |
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); |
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} |
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|
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/** |
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* Registers the `core/pages` block on server. |
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*/ |
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function gutenberg_register_block_core_page_list() { |
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register_block_type_from_metadata( |
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__DIR__ . '/page-list', |
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array( |
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'render_callback' => 'gutenberg_render_block_core_page_list', |
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) |
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); |
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} |
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add_action( 'init', 'gutenberg_register_block_core_page_list', 20 ); |
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|
