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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 gutenberg |
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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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* @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( $context ) { |
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$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 = array_key_exists( 'customTextColor', $context ); |
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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;', $context['customTextColor'] ); |
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} |
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|
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// Background color. |
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$has_named_background_color = array_key_exists( 'backgroundColor', $context ); |
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$has_custom_background_color = array_key_exists( 'customBackgroundColor', $context ); |
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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['customBackgroundColor'] ); |
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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 = array_key_exists( 'customFontSize', $context ); |
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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['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_link_render_submenu_icon() { |
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return '<svg xmlns="http://www.w3.org/2000/svg" width="12" height="12" viewBox="0 0 24 24" transform="rotate(90)"><path d="M8 5v14l11-7z"/><path d="M0 0h24v24H0z" fill="none"/></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 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 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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// 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( $block->context ); |
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$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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$classes[] = 'wp-block-navigation-link'; |
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$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() === $attributes['id'] ); |
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|
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$class_name = ! empty( $attributes['className'] ) ? implode( ' ', (array) $attributes['className'] ) : false; |
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|
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if ( false !== $class_name ) { |
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$css_classes .= ' ' . $class_name; |
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}; |
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|
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$html = '<li class="' . esc_attr( $css_classes . ( $has_submenu ? ' has-child' : '' ) ) . |
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( $is_active ? ' current-menu-item' : '' ) . '"' . $style_attribute . '>' . |
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'<a class="wp-block-navigation-link__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 ( isset( $attributes['opensInNewTab'] ) && true === $attributes['opensInNewTab'] ) { |
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$html .= ' target="_blank" '; |
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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-link__label">'; |
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|
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if ( isset( $attributes['label'] ) ) { |
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$html .= wp_kses( |
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$attributes['label'], |
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array( |
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'code' => array(), |
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'em' => array(), |
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'img' => array( |
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'scale' => array(), |
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'class' => array(), |
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'style' => array(), |
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'src' => array(), |
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'alt' => array(), |
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), |
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's' => array(), |
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'span' => array( |
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'style' => array(), |
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), |
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'strong' => array(), |
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) |
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); |
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} |
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|
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$html .= '</span>'; |
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|
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$html .= '</a>'; |
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// End anchor tag content. |
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|
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if ( $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-link__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 .= $inner_block->render(); |
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} |
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|
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// TODO - classname is wrong! |
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$html .= sprintf( |
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'<ul class="wp-block-navigation__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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* 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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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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) |
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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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|
