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<?php |
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/** |
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* Server-side rendering of the `core/navigation-link` 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 navigation markup in the front-end. |
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* |
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* @param array $context Navigation block context. |
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* @param array $attributes Block attributes. |
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* @return array Colors CSS classes and inline styles. |
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*/ |
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function gutenberg_block_core_navigation_link_build_css_colors( $context, $attributes ) { |
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$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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$is_sub_menu = isset( $attributes['isTopLevelLink'] ) ? ( ! $attributes['isTopLevelLink'] ) : false; |
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|
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// Text color. |
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$named_text_color = null; |
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$custom_text_color = null; |
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|
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if ( $is_sub_menu && array_key_exists( 'customOverlayTextColor', $context ) ) { |
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$custom_text_color = $context['customOverlayTextColor']; |
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} elseif ( $is_sub_menu && array_key_exists( 'overlayTextColor', $context ) ) { |
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$named_text_color = $context['overlayTextColor']; |
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} elseif ( array_key_exists( 'customTextColor', $context ) ) { |
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$custom_text_color = $context['customTextColor']; |
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} elseif ( array_key_exists( 'textColor', $context ) ) { |
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$named_text_color = $context['textColor']; |
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} elseif ( isset( $context['style']['color']['text'] ) ) { |
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$custom_text_color = $context['style']['color']['text']; |
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} |
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|
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// If has text color. |
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if ( ! is_null( $named_text_color ) ) { |
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// Add the color class. |
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array_push( $colors['css_classes'], 'has-text-color', sprintf( 'has-%s-color', $named_text_color ) ); |
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} elseif ( ! is_null( $custom_text_color ) ) { |
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// Add the custom color inline style. |
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$colors['css_classes'][] = 'has-text-color'; |
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$colors['inline_styles'] .= sprintf( 'color: %s;', $custom_text_color ); |
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} |
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|
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// Background color. |
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$named_background_color = null; |
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$custom_background_color = null; |
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|
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if ( $is_sub_menu && array_key_exists( 'customOverlayBackgroundColor', $context ) ) { |
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$custom_background_color = $context['customOverlayBackgroundColor']; |
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} elseif ( $is_sub_menu && array_key_exists( 'overlayBackgroundColor', $context ) ) { |
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$named_background_color = $context['overlayBackgroundColor']; |
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} elseif ( array_key_exists( 'customBackgroundColor', $context ) ) { |
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$custom_background_color = $context['customBackgroundColor']; |
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} elseif ( array_key_exists( 'backgroundColor', $context ) ) { |
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$named_background_color = $context['backgroundColor']; |
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} elseif ( isset( $context['style']['color']['background'] ) ) { |
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$custom_background_color = $context['style']['color']['background']; |
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} |
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|
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// If has background color. |
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if ( ! is_null( $named_background_color ) ) { |
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// Add the background-color class. |
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array_push( $colors['css_classes'], 'has-background', sprintf( 'has-%s-background-color', $named_background_color ) ); |
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} elseif ( ! is_null( $custom_background_color ) ) { |
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// Add the custom background-color inline style. |
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$colors['css_classes'][] = 'has-background'; |
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$colors['inline_styles'] .= sprintf( 'background-color: %s;', $custom_background_color ); |
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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 navigation markup in the front-end. |
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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_navigation_link_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: %s;', $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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* Returns the top-level submenu SVG chevron icon. |
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* |
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* @return string |
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*/ |
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function gutenberg_block_core_navigation_link_render_submenu_icon() { |
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return '<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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} |
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|
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/** |
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* Renders the `core/navigation-link` block. |
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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 post content with the legacy widget added. |
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*/ |
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function gutenberg_render_block_core_navigation_link( $attributes, $content, $block ) { |
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$navigation_link_has_id = isset( $attributes['id'] ) && is_numeric( $attributes['id'] ); |
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$is_post_type = isset( $attributes['kind'] ) && 'post-type' === $attributes['kind']; |
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$is_post_type = $is_post_type || isset( $attributes['type'] ) && ( 'post' === $attributes['type'] || 'page' === $attributes['type'] ); |
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|
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// Don't render the block's subtree if it is a draft or if the ID does not exist. |
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if ( $is_post_type && $navigation_link_has_id ) { |
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$post = get_post( $attributes['id'] ); |
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if ( ! $post || 'publish' !== $post->post_status ) { |
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return ''; |
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} |
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} |
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|
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// Don't render the block's subtree if it has no label. |
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if ( empty( $attributes['label'] ) ) { |
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return ''; |
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} |
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|
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$colors = gutenberg_block_core_navigation_link_build_css_colors( $block->context, $attributes ); |
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$font_sizes = gutenberg_block_core_navigation_link_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'] . $font_sizes['inline_styles'] ); |
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|
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$css_classes = trim( implode( ' ', $classes ) ); |
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$has_submenu = count( $block->inner_blocks ) > 0; |
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$is_active = ! empty( $attributes['id'] ) && ( get_the_ID() === $attributes['id'] ); |
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|
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$wrapper_attributes = get_block_wrapper_attributes( |
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array( |
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'class' => $css_classes . ' wp-block-navigation-item' . ( $has_submenu ? ' has-child' : '' ) . |
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( $is_active ? ' current-menu-item' : '' ), |
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'style' => $style_attribute, |
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) |
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); |
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$html = '<li ' . $wrapper_attributes . '>' . |
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'<a class="wp-block-navigation-item__content" '; |
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|
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// Start appending HTML attributes to anchor tag. |
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if ( isset( $attributes['url'] ) ) { |
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$html .= ' href="' . esc_url( $attributes['url'] ) . '"'; |
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} |
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|
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if ( $is_active ) { |
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$html .= ' aria-current="page"'; |
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} |
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|
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if ( isset( $attributes['opensInNewTab'] ) && true === $attributes['opensInNewTab'] ) { |
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$html .= ' target="_blank" '; |
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} |
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|
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if ( isset( $attributes['rel'] ) ) { |
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$html .= ' rel="' . esc_attr( $attributes['rel'] ) . '"'; |
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} elseif ( isset( $attributes['nofollow'] ) && $attributes['nofollow'] ) { |
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$html .= ' rel="nofollow"'; |
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} |
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|
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if ( isset( $attributes['title'] ) ) { |
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$html .= ' title="' . esc_attr( $attributes['title'] ) . '"'; |
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} |
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|
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// End appending HTML attributes to anchor tag. |
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|
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// Start anchor tag content. |
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$html .= '>' . |
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// Wrap title with span to isolate it from submenu icon. |
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'<span class="wp-block-navigation-item__label">'; |
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|
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if ( isset( $attributes['label'] ) ) { |
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$html .= wp_kses_post( $attributes['label'] ); |
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} |
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|
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$html .= '</span>'; |
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$html .= '</a>'; |
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// End anchor tag content. |
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|
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if ( isset( $block->context['showSubmenuIcon'] ) && $block->context['showSubmenuIcon'] && $has_submenu ) { |
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// The submenu icon can be hidden by a CSS rule on the Navigation Block. |
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$html .= '<span class="wp-block-navigation__submenu-icon">' . gutenberg_block_core_navigation_link_render_submenu_icon() . '</span>'; |
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} |
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|
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if ( $has_submenu ) { |
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$inner_blocks_html = ''; |
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foreach ( $block->inner_blocks as $inner_block ) { |
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$inner_blocks_html .= $inner_block->render(); |
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} |
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|
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$html .= sprintf( |
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'<ul class="wp-block-navigation__submenu-container">%s</ul>', |
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$inner_blocks_html |
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); |
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} |
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|
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$html .= '</li>'; |
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|
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return $html; |
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} |
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|
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/** |
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* Returns a navigation link variation |
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* |
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* @param WP_Taxonomy|WP_Post_Type $entity post type or taxonomy entity. |
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* @param string $kind string of value 'taxonomy' or 'post-type'. |
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* |
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* @return array |
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*/ |
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function gutenberg_build_variation_for_navigation_link( $entity, $kind ) { |
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$title = ''; |
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$description = ''; |
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|
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if ( property_exists( $entity->labels, 'item_link' ) ) { |
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$title = $entity->labels->item_link; |
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} |
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if ( property_exists( $entity->labels, 'item_link_description' ) ) { |
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$description = $entity->labels->item_link_description; |
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} |
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|
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$variation = array( |
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'name' => $entity->name, |
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'title' => $title, |
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'description' => $description, |
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'attributes' => array( |
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'type' => $entity->name, |
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'kind' => $kind, |
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), |
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); |
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|
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// Tweak some value for the variations. |
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$variation_overrides = array( |
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'post_tag' => array( |
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'name' => 'tag', |
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'attributes' => array( |
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'type' => 'tag', |
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'kind' => $kind, |
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), |
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), |
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'post_format' => array( |
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// The item_link and item_link_description for post formats is the |
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// same as for tags, so need to be overridden. |
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'title' => __( 'Post Format Link' ), |
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'description' => __( 'A link to a post format' ), |
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'attributes' => array( |
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'type' => 'post_format', |
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'kind' => $kind, |
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), |
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), |
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); |
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|
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if ( array_key_exists( $entity->name, $variation_overrides ) ) { |
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$variation = array_merge( |
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$variation, |
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$variation_overrides[ $entity->name ] |
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); |
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} |
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|
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return $variation; |
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} |
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|
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/** |
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* Register the navigation link block. |
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* |
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* @uses render_block_core_navigation() |
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* @throws WP_Error An WP_Error exception parsing the block definition. |
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*/ |
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function gutenberg_register_block_core_navigation_link() { |
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$post_types = get_post_types( array( 'show_in_nav_menus' => true ), 'objects' ); |
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$taxonomies = get_taxonomies( array( 'show_in_nav_menus' => true ), 'objects' ); |
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|
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// Use two separate arrays as a way to order the variations in the UI. |
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// Known variations (like Post Link and Page Link) are added to the |
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// `built_ins` array. Variations for custom post types and taxonomies are |
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// added to the `variations` array and will always appear after `built-ins. |
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$built_ins = array(); |
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$variations = array(); |
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|
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if ( $post_types ) { |
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foreach ( $post_types as $post_type ) { |
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$variation = gutenberg_build_variation_for_navigation_link( $post_type, 'post-type' ); |
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if ( $post_type->_builtin ) { |
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$built_ins[] = $variation; |
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} else { |
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$variations[] = $variation; |
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} |
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} |
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} |
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if ( $taxonomies ) { |
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foreach ( $taxonomies as $taxonomy ) { |
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$variation = gutenberg_build_variation_for_navigation_link( $taxonomy, 'taxonomy' ); |
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if ( $taxonomy->_builtin ) { |
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$built_ins[] = $variation; |
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} else { |
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$variations[] = $variation; |
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} |
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} |
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} |
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|
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register_block_type_from_metadata( |
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__DIR__ . '/navigation-link', |
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array( |
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'render_callback' => 'gutenberg_render_block_core_navigation_link', |
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'variations' => array_merge( $built_ins, $variations ), |
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) |
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); |
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} |
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add_action( 'init', 'gutenberg_register_block_core_navigation_link', 20 ); |
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|
