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<?php |
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/** |
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* Server-side rendering of the `core/home-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 home link markup in the front-end. |
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* |
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* @param array $context home link 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_home_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 = 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 home link markup in the front-end. |
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* |
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* @param array $context Home link 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_home_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: %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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* Builds an array with classes and style for the li wrapper |
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* |
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* @param array $context Home link block context. |
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* @return array The li wrapper attributes. |
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*/ |
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function gutenberg_block_core_home_link_build_li_wrapper_attributes( $context ) { |
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$colors = gutenberg_block_core_home_link_build_css_colors( $context ); |
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$font_sizes = gutenberg_block_core_home_link_build_css_font_sizes( $context ); |
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$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( ' ', $classes ) ) . ' wp-block-navigation-item'; |
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|
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$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 $wrapper_attributes; |
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} |
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|
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/** |
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* Renders the `core/home-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 home url added. |
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*/ |
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function gutenberg_render_block_core_home_link( $attributes, $content, $block ) { |
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if ( empty( $attributes['label'] ) ) { |
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return ''; |
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} |
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|
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$wrapper_attributes = gutenberg_block_core_home_link_build_li_wrapper_attributes( $block->context ); |
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|
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$aria_current = is_home() || ( is_front_page() && 'page' === get_option( 'show_on_front' ) ) ? ' aria-current="page"' : ''; |
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|
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$html = '<li ' . $wrapper_attributes . '><a class="wp-block-home-link__content wp-block-navigation-item__content" rel="home"' . $aria_current; |
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|
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// Start appending HTML attributes to anchor tag. |
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$html .= ' href="' . esc_url( home_url() ) . '"'; |
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|
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// End appending HTML attributes to anchor tag. |
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$html .= '>'; |
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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 .= '</a></li>'; |
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return $html; |
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} |
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|
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/** |
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* Register the home block |
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* |
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* @uses gutenberg_render_block_core_home_link() |
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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_home_link() { |
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register_block_type_from_metadata( |
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__DIR__ . '/home-link', |
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array( |
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'render_callback' => 'gutenberg_render_block_core_home_link', |
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) |
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); |
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} |
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add_action( 'init', 'gutenberg_register_block_core_home_link', 20 ); |
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|
