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- <?php
- /**
- * Server-side rendering of the `core/home-link` block.
- *
- * @package WordPress
- */
- /**
- * Build an array with CSS classes and inline styles defining the colors
- * which will be applied to the home link markup in the front-end.
- *
- * @param array $context home link block context.
- * @return array Colors CSS classes and inline styles.
- */
- function block_core_home_link_build_css_colors( $context ) {
- $colors = array(
- 'css_classes' => array(),
- 'inline_styles' => '',
- );
- // Text color.
- $has_named_text_color = array_key_exists( 'textColor', $context );
- $has_custom_text_color = isset( $context['style']['color']['text'] );
- // If has text color.
- if ( $has_custom_text_color || $has_named_text_color ) {
- // Add has-text-color class.
- $colors['css_classes'][] = 'has-text-color';
- }
- if ( $has_named_text_color ) {
- // Add the color class.
- $colors['css_classes'][] = sprintf( 'has-%s-color', $context['textColor'] );
- } elseif ( $has_custom_text_color ) {
- // Add the custom color inline style.
- $colors['inline_styles'] .= sprintf( 'color: %s;', $context['style']['color']['text'] );
- }
- // Background color.
- $has_named_background_color = array_key_exists( 'backgroundColor', $context );
- $has_custom_background_color = isset( $context['style']['color']['background'] );
- // If has background color.
- if ( $has_custom_background_color || $has_named_background_color ) {
- // Add has-background class.
- $colors['css_classes'][] = 'has-background';
- }
- if ( $has_named_background_color ) {
- // Add the background-color class.
- $colors['css_classes'][] = sprintf( 'has-%s-background-color', $context['backgroundColor'] );
- } elseif ( $has_custom_background_color ) {
- // Add the custom background-color inline style.
- $colors['inline_styles'] .= sprintf( 'background-color: %s;', $context['style']['color']['background'] );
- }
- return $colors;
- }
- /**
- * Build an array with CSS classes and inline styles defining the font sizes
- * which will be applied to the home link markup in the front-end.
- *
- * @param array $context Home link block context.
- * @return array Font size CSS classes and inline styles.
- */
- function block_core_home_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;', $context['style']['typography']['fontSize'] );
- }
- return $font_sizes;
- }
- /**
- * Builds an array with classes and style for the li wrapper
- *
- * @param array $context Home link block context.
- * @return string The li wrapper attributes.
- */
- function block_core_home_link_build_li_wrapper_attributes( $context ) {
- $colors = block_core_home_link_build_css_colors( $context );
- $font_sizes = block_core_home_link_build_css_font_sizes( $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 ) ) . ' wp-block-navigation-item';
- $wrapper_attributes = get_block_wrapper_attributes(
- array(
- 'class' => $css_classes,
- 'style' => $style_attribute,
- )
- );
- return $wrapper_attributes;
- }
- /**
- * Renders the `core/home-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 home url added.
- */
- function render_block_core_home_link( $attributes, $content, $block ) {
- if ( empty( $attributes['label'] ) ) {
- return '';
- }
- $aria_current = is_home() || ( is_front_page() && 'page' === get_option( 'show_on_front' ) ) ? ' aria-current="page"' : '';
- return sprintf(
- '<li %1$s><a class="wp-block-home-link__content wp-block-navigation-item__content" href="%2$s" "rel="home"%3$s>%4$s</a></li>',
- block_core_home_link_build_li_wrapper_attributes( $block->context ),
- esc_url( home_url() ),
- $aria_current,
- wp_kses_post( $attributes['label'] )
- );
- }
- /**
- * Register the home block
- *
- * @uses render_block_core_home_link()
- * @throws WP_Error An WP_Error exception parsing the block definition.
- */
- function register_block_core_home_link() {
- register_block_type_from_metadata(
- __DIR__ . '/home-link',
- array(
- 'render_callback' => 'render_block_core_home_link',
- )
- );
- }
- add_action( 'init', 'register_block_core_home_link' );
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