| 1 |
<?php |
| 2 |
/** |
| 3 |
* Server-side rendering of the `core/navigation` block. |
| 4 |
* |
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* @package WordPress |
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*/ |
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|
| 8 |
/** |
| 9 |
* 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 $attributes Navigation block attributes. |
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* |
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* @return array Colors CSS classes and inline styles. |
| 15 |
*/ |
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function gutenberg_block_core_navigation_build_css_colors( $attributes ) { |
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$colors = array( |
| 18 |
'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', $attributes ); |
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$has_custom_text_color = array_key_exists( 'customTextColor', $attributes ); |
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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', $attributes['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;', $attributes['customTextColor'] ); |
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} |
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|
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// Background color. |
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$has_named_background_color = array_key_exists( 'backgroundColor', $attributes ); |
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$has_custom_background_color = array_key_exists( 'customBackgroundColor', $attributes ); |
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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', $attributes['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;', $attributes['customBackgroundColor'] ); |
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} |
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|
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// Overlay text color. |
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$has_named_overlay_text_color = array_key_exists( 'overlayTextColor', $attributes ); |
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$has_custom_overlay_text_color = array_key_exists( 'customOverlayTextColor', $attributes ); |
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|
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// If has overlay text color. |
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if ( $has_custom_overlay_text_color || $has_named_overlay_text_color ) { |
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// Add has-text-color class. |
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$colors['overlay_css_classes'][] = 'has-text-color'; |
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} |
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|
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if ( $has_named_overlay_text_color ) { |
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// Add the overlay color class. |
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$colors['overlay_css_classes'][] = sprintf( 'has-%s-color', $attributes['overlayTextColor'] ); |
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} elseif ( $has_custom_overlay_text_color ) { |
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// Add the custom overlay color inline style. |
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$colors['overlay_inline_styles'] .= sprintf( 'color: %s;', $attributes['customOverlayTextColor'] ); |
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} |
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|
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// Overlay background color. |
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$has_named_overlay_background_color = array_key_exists( 'overlayBackgroundColor', $attributes ); |
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$has_custom_overlay_background_color = array_key_exists( 'customOverlayBackgroundColor', $attributes ); |
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|
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// If has overlay background color. |
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if ( $has_custom_overlay_background_color || $has_named_overlay_background_color ) { |
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// Add has-background class. |
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$colors['overlay_css_classes'][] = 'has-background'; |
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} |
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|
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if ( $has_named_overlay_background_color ) { |
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// Add the overlay background-color class. |
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$colors['overlay_css_classes'][] = sprintf( 'has-%s-background-color', $attributes['overlayBackgroundColor'] ); |
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} elseif ( $has_custom_overlay_background_color ) { |
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// Add the custom overlay background-color inline style. |
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$colors['overlay_inline_styles'] .= sprintf( 'background-color: %s;', $attributes['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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/** |
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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 $attributes Navigation block attributes. |
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* |
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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_build_css_font_sizes( $attributes ) { |
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// CSS classes. |
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$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', $attributes ); |
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$has_custom_font_size = array_key_exists( 'customFontSize', $attributes ); |
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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', $attributes['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;', $attributes['customFontSize'] ); |
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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_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" role="img" 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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/** |
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* Finds the first non-empty `wp_navigation` Post. |
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* |
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* @return WP_Post|null the first non-empty Navigation or null. |
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*/ |
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function gutenberg_block_core_navigation_get_first_non_empty_navigation() { |
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// Order and orderby args set to mirror those in `wp_get_nav_menus` |
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// see: |
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// - https://github.com/WordPress/wordpress-develop/blob/ba943e113d3b31b121f77a2d30aebe14b047c69d/src/wp-includes/nav-menu.php#L613-L619. |
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// - https://developer.wordpress.org/reference/classes/wp_query/#order-orderby-parameters. |
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$parsed_args = array( |
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'post_type' => 'wp_navigation', |
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'no_found_rows' => true, |
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'order' => 'ASC', |
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'orderby' => 'name', |
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'post_status' => 'publish', |
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'posts_per_page' => 20, // Try the first 20 posts. |
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); |
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|
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$navigation_posts = new WP_Query( $parsed_args ); |
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foreach ( $navigation_posts->posts as $navigation_post ) { |
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if ( has_blocks( $navigation_post ) ) { |
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return $navigation_post; |
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} |
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} |
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|
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return null; |
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} |
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|
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/** |
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* Filter out empty "null" blocks from the block list. |
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* 'parse_blocks' includes a null block with '\n\n' as the content when |
| 170 |
* it encounters whitespace. This is not a bug but rather how the parser |
| 171 |
* is designed. |
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* |
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* @param array $parsed_blocks the parsed blocks to be normalized. |
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* @return array the normalized parsed blocks. |
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*/ |
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function gutenberg_block_core_navigation_filter_out_empty_blocks( $parsed_blocks ) { |
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$filtered = array_filter( |
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$parsed_blocks, |
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function( $block ) { |
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return isset( $block['blockName'] ); |
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} |
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); |
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|
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// Reset keys. |
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return array_values( $filtered ); |
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} |
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|
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/** |
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* Retrieves the appropriate fallback to be used on the front of the |
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* site when there is no menu assigned to the Nav block. |
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* |
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* This aims to mirror how the fallback mechanic for wp_nav_menu works. |
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* See https://developer.wordpress.org/reference/functions/wp_nav_menu/#more-information. |
| 194 |
* |
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* @return array the array of blocks to be used as a fallback. |
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*/ |
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function gutenberg_block_core_navigation_get_fallback_blocks() { |
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$page_list_fallback = array( |
| 199 |
array( |
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'blockName' => 'core/page-list', |
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'attrs' => array( |
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'__unstableMaxPages' => 4, |
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), |
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), |
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); |
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|
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$registry = WP_Block_Type_Registry::get_instance(); |
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|
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// If `core/page-list` is not registered then return empty blocks. |
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$fallback_blocks = $registry->is_registered( 'core/page-list' ) ? $page_list_fallback : array(); |
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|
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// Default to a list of Pages. |
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|
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$navigation_post = gutenberg_block_core_navigation_get_first_non_empty_navigation(); |
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|
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// Prefer using the first non-empty Navigation as fallback if available. |
| 217 |
if ( $navigation_post ) { |
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$maybe_fallback = gutenberg_block_core_navigation_filter_out_empty_blocks( parse_blocks( $navigation_post->post_content ) ); |
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|
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// Normalizing blocks may result in an empty array of blocks if they were all `null` blocks. |
| 221 |
// In this case default to the (Page List) fallback. |
| 222 |
$fallback_blocks = ! empty( $maybe_fallback ) ? $maybe_fallback : $fallback_blocks; |
| 223 |
} |
| 224 |
|
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/** |
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* Filters the fallback experience for the Navigation block. |
| 227 |
* |
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* Returning a falsey value will opt out of the fallback and cause the block not to render. |
| 229 |
* To customise the blocks provided return an array of blocks - these should be valid |
| 230 |
* children of the `core/navigation` block. |
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* |
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* @param array[] default fallback blocks provided by the default block mechanic. |
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*/ |
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return apply_filters( 'block_core_navigation_render_fallback', $fallback_blocks ); |
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} |
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|
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/** |
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* Renders the `core/navigation` block on server. |
| 239 |
* |
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* @param array $attributes The block attributes. |
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* @param array $content The saved content. |
| 242 |
* @param array $block The parsed block. |
| 243 |
* |
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* @return string Returns the post content with the legacy widget added. |
| 245 |
*/ |
| 246 |
function gutenberg_render_block_core_navigation( $attributes, $content, $block ) { |
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|
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// Flag used to indicate whether the rendered output is considered to be |
| 249 |
// a fallback (i.e. the block has no menu associated with it). |
| 250 |
$is_fallback = false; |
| 251 |
|
| 252 |
/** |
| 253 |
* Deprecated: |
| 254 |
* The rgbTextColor and rgbBackgroundColor attributes |
| 255 |
* have been deprecated in favor of |
| 256 |
* customTextColor and customBackgroundColor ones. |
| 257 |
* Move the values from old attrs to the new ones. |
| 258 |
*/ |
| 259 |
if ( isset( $attributes['rgbTextColor'] ) && empty( $attributes['textColor'] ) ) { |
| 260 |
$attributes['customTextColor'] = $attributes['rgbTextColor']; |
| 261 |
} |
| 262 |
|
| 263 |
if ( isset( $attributes['rgbBackgroundColor'] ) && empty( $attributes['backgroundColor'] ) ) { |
| 264 |
$attributes['customBackgroundColor'] = $attributes['rgbBackgroundColor']; |
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} |
| 266 |
|
| 267 |
unset( $attributes['rgbTextColor'], $attributes['rgbBackgroundColor'] ); |
| 268 |
|
| 269 |
/** |
| 270 |
* This is for backwards compatibility after `isResponsive` attribute has been removed. |
| 271 |
*/ |
| 272 |
$has_old_responsive_attribute = ! empty( $attributes['isResponsive'] ) && $attributes['isResponsive']; |
| 273 |
$is_responsive_menu = isset( $attributes['overlayMenu'] ) && 'never' !== $attributes['overlayMenu'] || $has_old_responsive_attribute; |
| 274 |
$should_load_view_script = ! wp_script_is( 'wp-block-navigation-view' ) && ( $is_responsive_menu || $attributes['openSubmenusOnClick'] || $attributes['showSubmenuIcon'] ); |
| 275 |
if ( $should_load_view_script ) { |
| 276 |
wp_enqueue_script( 'wp-block-navigation-view' ); |
| 277 |
} |
| 278 |
|
| 279 |
$inner_blocks = $block->inner_blocks; |
| 280 |
|
| 281 |
// If `__unstableLocation` is defined and: |
| 282 |
// - we have menu items at the defined location |
| 283 |
// - we don't have a relationship to a `wp_navigation` Post (via `navigationMenuId`). |
| 284 |
// ...then create inner blocks from the classic menu assigned to that location. |
| 285 |
if ( |
| 286 |
array_key_exists( '__unstableLocation', $attributes ) && |
| 287 |
! array_key_exists( 'navigationMenuId', $attributes ) && |
| 288 |
! empty( gutenberg_get_menu_items_at_location( $attributes['__unstableLocation'] ) ) |
| 289 |
) { |
| 290 |
$menu_items = gutenberg_get_menu_items_at_location( $attributes['__unstableLocation'] ); |
| 291 |
if ( empty( $menu_items ) ) { |
| 292 |
return ''; |
| 293 |
} |
| 294 |
|
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$menu_items_by_parent_id = gutenberg_sort_menu_items_by_parent_id( $menu_items ); |
| 296 |
$parsed_blocks = gutenberg_parse_blocks_from_menu_items( $menu_items_by_parent_id[0], $menu_items_by_parent_id ); |
| 297 |
$inner_blocks = new WP_Block_List( $parsed_blocks, $attributes ); |
| 298 |
} |
| 299 |
|
| 300 |
// Ensure that blocks saved with the legacy ref attribute name (navigationMenuId) continue to render. |
| 301 |
if ( array_key_exists( 'navigationMenuId', $attributes ) ) { |
| 302 |
$attributes['ref'] = $attributes['navigationMenuId']; |
| 303 |
} |
| 304 |
// Load inner blocks from the navigation post. |
| 305 |
if ( array_key_exists( 'ref', $attributes ) ) { |
| 306 |
$navigation_post = get_post( $attributes['ref'] ); |
| 307 |
if ( ! isset( $navigation_post ) ) { |
| 308 |
return ''; |
| 309 |
} |
| 310 |
|
| 311 |
$parsed_blocks = parse_blocks( $navigation_post->post_content ); |
| 312 |
|
| 313 |
// 'parse_blocks' includes a null block with '\n\n' as the content when |
| 314 |
// it encounters whitespace. This code strips it. |
| 315 |
$compacted_blocks = gutenberg_block_core_navigation_filter_out_empty_blocks( $parsed_blocks ); |
| 316 |
|
| 317 |
// TODO - this uses the full navigation block attributes for the |
| 318 |
// context which could be refined. |
| 319 |
$inner_blocks = new WP_Block_List( $compacted_blocks, $attributes ); |
| 320 |
} |
| 321 |
|
| 322 |
// If there are no inner blocks then fallback to rendering an appropriate fallback. |
| 323 |
if ( empty( $inner_blocks ) ) { |
| 324 |
$is_fallback = true; // indicate we are rendering the fallback. |
| 325 |
|
| 326 |
$fallback_blocks = gutenberg_block_core_navigation_get_fallback_blocks(); |
| 327 |
|
| 328 |
// Fallback my have been filtered so do basic test for validity. |
| 329 |
if ( empty( $fallback_blocks ) || ! is_array( $fallback_blocks ) ) { |
| 330 |
return ''; |
| 331 |
} |
| 332 |
|
| 333 |
$inner_blocks = new WP_Block_List( $fallback_blocks, $attributes ); |
| 334 |
|
| 335 |
} |
| 336 |
|
| 337 |
// Restore legacy classnames for submenu positioning. |
| 338 |
$layout_class = ''; |
| 339 |
if ( isset( $attributes['layout']['justifyContent'] ) ) { |
| 340 |
if ( 'right' === $attributes['layout']['justifyContent'] ) { |
| 341 |
$layout_class .= 'items-justified-right'; |
| 342 |
} elseif ( 'space-between' === $attributes['layout']['justifyContent'] ) { |
| 343 |
$layout_class .= 'items-justified-space-between'; |
| 344 |
} |
| 345 |
} |
| 346 |
|
| 347 |
$colors = gutenberg_block_core_navigation_build_css_colors( $attributes ); |
| 348 |
$font_sizes = gutenberg_block_core_navigation_build_css_font_sizes( $attributes ); |
| 349 |
$classes = array_merge( |
| 350 |
$colors['css_classes'], |
| 351 |
$font_sizes['css_classes'], |
| 352 |
$is_responsive_menu ? array( 'is-responsive' ) : array(), |
| 353 |
$layout_class ? array( $layout_class ) : array(), |
| 354 |
$is_fallback ? array( 'is-fallback' ) : array() |
| 355 |
); |
| 356 |
|
| 357 |
$inner_blocks_html = ''; |
| 358 |
$is_list_open = false; |
| 359 |
foreach ( $inner_blocks as $inner_block ) { |
| 360 |
if ( ( 'core/navigation-link' === $inner_block->name || 'core/home-link' === $inner_block->name || 'core/site-title' === $inner_block->name || 'core/site-logo' === $inner_block->name || 'core/navigation-submenu' === $inner_block->name ) && ! $is_list_open ) { |
| 361 |
$is_list_open = true; |
| 362 |
$inner_blocks_html .= '<ul class="wp-block-navigation__container">'; |
| 363 |
} |
| 364 |
if ( 'core/navigation-link' !== $inner_block->name && 'core/home-link' !== $inner_block->name && 'core/site-title' !== $inner_block->name && 'core/site-logo' !== $inner_block->name && 'core/navigation-submenu' !== $inner_block->name && $is_list_open ) { |
| 365 |
$is_list_open = false; |
| 366 |
$inner_blocks_html .= '</ul>'; |
| 367 |
} |
| 368 |
if ( 'core/site-title' === $inner_block->name || 'core/site-logo' === $inner_block->name ) { |
| 369 |
$inner_blocks_html .= '<li class="wp-block-navigation-item">' . $inner_block->render() . '</li>'; |
| 370 |
} else { |
| 371 |
$inner_blocks_html .= $inner_block->render(); |
| 372 |
} |
| 373 |
} |
| 374 |
|
| 375 |
if ( $is_list_open ) { |
| 376 |
$inner_blocks_html .= '</ul>'; |
| 377 |
} |
| 378 |
|
| 379 |
$block_styles = isset( $attributes['styles'] ) ? $attributes['styles'] : ''; |
| 380 |
|
| 381 |
$wrapper_attributes = get_block_wrapper_attributes( |
| 382 |
array( |
| 383 |
'class' => implode( ' ', $classes ), |
| 384 |
'style' => $block_styles . $colors['inline_styles'] . $font_sizes['inline_styles'], |
| 385 |
) |
| 386 |
); |
| 387 |
|
| 388 |
$modal_unique_id = uniqid(); |
| 389 |
|
| 390 |
// Determine whether or not navigation elements should be wrapped in the markup required to make it responsive, |
| 391 |
// return early if they don't. |
| 392 |
if ( ! $is_responsive_menu ) { |
| 393 |
return sprintf( |
| 394 |
'<nav %1$s>%2$s</nav>', |
| 395 |
$wrapper_attributes, |
| 396 |
$inner_blocks_html |
| 397 |
); |
| 398 |
} |
| 399 |
|
| 400 |
$is_hidden_by_default = isset( $attributes['overlayMenu'] ) && 'always' === $attributes['overlayMenu']; |
| 401 |
|
| 402 |
$responsive_container_classes = array( |
| 403 |
'wp-block-navigation__responsive-container', |
| 404 |
$is_hidden_by_default ? 'hidden-by-default' : '', |
| 405 |
implode( ' ', $colors['overlay_css_classes'] ), |
| 406 |
); |
| 407 |
$open_button_classes = array( |
| 408 |
'wp-block-navigation__responsive-container-open', |
| 409 |
$is_hidden_by_default ? 'always-shown' : '', |
| 410 |
); |
| 411 |
|
| 412 |
$responsive_container_markup = sprintf( |
| 413 |
'<button aria-expanded="false" aria-haspopup="true" aria-label="%3$s" class="%6$s" data-micromodal-trigger="modal-%1$s"><svg width="24" height="24" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" role="img" aria-hidden="true" focusable="false"><rect x="4" y="7.5" width="16" height="1.5" /><rect x="4" y="15" width="16" height="1.5" /></svg></button> |
| 414 |
<div class="%5$s" style="%7$s" id="modal-%1$s"> |
| 415 |
<div class="wp-block-navigation__responsive-close" tabindex="-1" data-micromodal-close> |
| 416 |
<div class="wp-block-navigation__responsive-dialog" role="dialog" aria-modal="true" aria-labelledby="modal-%1$s-title" > |
| 417 |
<button aria-label="%4$s" data-micromodal-close class="wp-block-navigation__responsive-container-close"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" width="24" height="24" role="img" aria-hidden="true" focusable="false"><path d="M13 11.8l6.1-6.3-1-1-6.1 6.2-6.1-6.2-1 1 6.1 6.3-6.5 6.7 1 1 6.5-6.6 6.5 6.6 1-1z"></path></svg></button> |
| 418 |
<div class="wp-block-navigation__responsive-container-content" id="modal-%1$s-content"> |
| 419 |
%2$s |
| 420 |
</div> |
| 421 |
</div> |
| 422 |
</div> |
| 423 |
</div>', |
| 424 |
$modal_unique_id, |
| 425 |
$inner_blocks_html, |
| 426 |
__( 'Open menu' ), // Open button label. |
| 427 |
__( 'Close menu' ), // Close button label. |
| 428 |
implode( ' ', $responsive_container_classes ), |
| 429 |
implode( ' ', $open_button_classes ), |
| 430 |
$colors['overlay_inline_styles'] |
| 431 |
); |
| 432 |
|
| 433 |
return sprintf( |
| 434 |
'<nav %1$s>%2$s</nav>', |
| 435 |
$wrapper_attributes, |
| 436 |
$responsive_container_markup |
| 437 |
); |
| 438 |
} |
| 439 |
|
| 440 |
/** |
| 441 |
* Register the navigation block. |
| 442 |
* |
| 443 |
* @uses gutenberg_render_block_core_navigation() |
| 444 |
* @throws WP_Error An WP_Error exception parsing the block definition. |
| 445 |
*/ |
| 446 |
function gutenberg_register_block_core_navigation() { |
| 447 |
register_block_type_from_metadata( |
| 448 |
__DIR__ . '/navigation', |
| 449 |
array( |
| 450 |
'render_callback' => 'gutenberg_render_block_core_navigation', |
| 451 |
) |
| 452 |
); |
| 453 |
} |
| 454 |
|
| 455 |
add_action( 'init', 'gutenberg_register_block_core_navigation', 20 ); |
| 456 |
|
| 457 |
/** |
| 458 |
* Filter that changes the parsed attribute values of navigation blocks contain typographic presets to contain the values directly. |
| 459 |
* |
| 460 |
* @param array $parsed_block The block being rendered. |
| 461 |
* |
| 462 |
* @return array The block being rendered without typographic presets. |
| 463 |
*/ |
| 464 |
function gutenberg_block_core_navigation_typographic_presets_backcompatibility( $parsed_block ) { |
| 465 |
if ( 'core/navigation' === $parsed_block['blockName'] ) { |
| 466 |
$attribute_to_prefix_map = array( |
| 467 |
'fontStyle' => 'var:preset|font-style|', |
| 468 |
'fontWeight' => 'var:preset|font-weight|', |
| 469 |
'textDecoration' => 'var:preset|text-decoration|', |
| 470 |
'textTransform' => 'var:preset|text-transform|', |
| 471 |
); |
| 472 |
foreach ( $attribute_to_prefix_map as $style_attribute => $prefix ) { |
| 473 |
if ( ! empty( $parsed_block['attrs']['style']['typography'][ $style_attribute ] ) ) { |
| 474 |
$prefix_len = strlen( $prefix ); |
| 475 |
$attribute_value = &$parsed_block['attrs']['style']['typography'][ $style_attribute ]; |
| 476 |
if ( 0 === strncmp( $attribute_value, $prefix, $prefix_len ) ) { |
| 477 |
$attribute_value = substr( $attribute_value, $prefix_len ); |
| 478 |
} |
| 479 |
if ( 'textDecoration' === $style_attribute && 'strikethrough' === $attribute_value ) { |
| 480 |
$attribute_value = 'line-through'; |
| 481 |
} |
| 482 |
} |
| 483 |
} |
| 484 |
} |
| 485 |
|
| 486 |
return $parsed_block; |
| 487 |
} |
| 488 |
|
| 489 |
add_filter( 'render_block_data', 'gutenberg_block_core_navigation_typographic_presets_backcompatibility' ); |
| 490 |
|
