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