332 lines
12 KiB
PHP
332 lines
12 KiB
PHP
<?php
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/**
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* Server-side rendering of the `core/pages` block.
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*
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* @package WordPress
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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 pages markup in the front-end when it is a descendant of navigation.
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*
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* @param array $attributes Block attributes.
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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 block_core_page_list_build_css_colors( $attributes, $context ) {
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$colors = array(
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'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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// Text color.
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$has_named_text_color = array_key_exists( 'textColor', $context );
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$has_picked_text_color = array_key_exists( 'customTextColor', $context );
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$has_custom_text_color = isset( $context['style']['color']['text'] );
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// If has text color.
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if ( $has_custom_text_color || $has_picked_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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if ( $has_named_text_color ) {
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// Add the color class.
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$colors['css_classes'][] = sprintf( 'has-%s-color', gutenberg_experimental_to_kebab_case( $context['textColor'] ) );
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} elseif ( $has_picked_text_color ) {
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$colors['inline_styles'] .= sprintf( 'color: %s;', $context['customTextColor'] );
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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;', $context['style']['color']['text'] );
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}
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// Background color.
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$has_named_background_color = array_key_exists( 'backgroundColor', $context );
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$has_picked_background_color = array_key_exists( 'customBackgroundColor', $context );
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$has_custom_background_color = isset( $context['style']['color']['background'] );
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// If has background color.
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if ( $has_custom_background_color || $has_picked_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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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', gutenberg_experimental_to_kebab_case( $context['backgroundColor'] ) );
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} elseif ( $has_picked_background_color ) {
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$colors['inline_styles'] .= sprintf( 'background-color: %s;', $context['customBackgroundColor'] );
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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;', $context['style']['color']['background'] );
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}
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// Overlay text color.
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$has_named_overlay_text_color = array_key_exists( 'overlayTextColor', $context );
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$has_picked_overlay_text_color = array_key_exists( 'customOverlayTextColor', $context );
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// If it has a text color.
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if ( $has_named_overlay_text_color || $has_picked_overlay_text_color ) {
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$colors['overlay_css_classes'][] = 'has-text-color';
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}
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// Give overlay colors priority, fall back to Navigation block colors, then global styles.
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if ( $has_named_overlay_text_color ) {
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$colors['overlay_css_classes'][] = sprintf( 'has-%s-color', gutenberg_experimental_to_kebab_case( $context['overlayTextColor'] ) );
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} elseif ( $has_picked_overlay_text_color ) {
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$colors['overlay_inline_styles'] .= sprintf( 'color: %s;', $context['customOverlayTextColor'] );
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}
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// Overlay background colors.
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$has_named_overlay_background_color = array_key_exists( 'overlayBackgroundColor', $context );
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$has_picked_overlay_background_color = array_key_exists( 'customOverlayBackgroundColor', $context );
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// If has background color.
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if ( $has_named_overlay_background_color || $has_picked_overlay_background_color ) {
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$colors['overlay_css_classes'][] = 'has-background';
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}
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if ( $has_named_overlay_background_color ) {
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$colors['overlay_css_classes'][] = sprintf( 'has-%s-background-color', gutenberg_experimental_to_kebab_case( $context['overlayBackgroundColor'] ) );
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} elseif ( $has_picked_overlay_background_color ) {
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$colors['overlay_inline_styles'] .= sprintf( 'background-color: %s;', $context['customOverlayBackgroundColor'] );
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}
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return $colors;
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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 pages markup in the front-end when it is a descendant of navigation.
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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 block_core_page_list_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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$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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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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return $font_sizes;
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}
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/**
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* Outputs Page list markup from an array of pages with nested children.
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*
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* @param boolean $open_submenus_on_click Whether to open submenus on click instead of hover.
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* @param boolean $show_submenu_icons Whether to show submenu indicator icons.
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* @param boolean $is_navigation_child If block is a child of Navigation block.
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* @param array $nested_pages The array of nested pages.
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* @param array $active_page_ancestor_ids An array of ancestor ids for active page.
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* @param array $colors Color information for overlay styles.
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* @param integer $depth The nesting depth.
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*
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* @return string List markup.
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*/
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function block_core_page_list_render_nested_page_list( $open_submenus_on_click, $show_submenu_icons, $is_navigation_child, $nested_pages, $active_page_ancestor_ids = array(), $colors = array(), $depth = 0 ) {
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if ( empty( $nested_pages ) ) {
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return;
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}
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$markup = '';
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foreach ( (array) $nested_pages as $page ) {
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$css_class = $page['is_active'] ? ' current-menu-item' : '';
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$aria_current = $page['is_active'] ? ' aria-current="page"' : '';
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$style_attribute = '';
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$css_class .= in_array( $page['page_id'], $active_page_ancestor_ids, true ) ? ' current-menu-ancestor' : '';
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if ( isset( $page['children'] ) ) {
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$css_class .= ' has-child';
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}
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if ( $is_navigation_child ) {
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$css_class .= ' wp-block-navigation-item';
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if ( $open_submenus_on_click ) {
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$css_class .= ' open-on-click';
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} elseif ( $show_submenu_icons ) {
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$css_class .= ' open-on-hover-click';
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}
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}
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$navigation_child_content_class = $is_navigation_child ? ' wp-block-navigation-item__content' : '';
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// If this is the first level of submenus, include the overlay colors.
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if ( 1 === $depth && isset( $colors['overlay_css_classes'], $colors['overlay_inline_styles'] ) ) {
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$css_class .= ' ' . trim( implode( ' ', $colors['overlay_css_classes'] ) );
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if ( '' !== $colors['overlay_inline_styles'] ) {
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$style_attribute = sprintf( ' style="%s"', esc_attr( $colors['overlay_inline_styles'] ) );
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}
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}
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$markup .= '<li class="wp-block-pages-list__item' . $css_class . '"' . $style_attribute . '>';
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if ( isset( $page['children'] ) && $is_navigation_child && $open_submenus_on_click ) {
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$markup .= '<button class="' . $navigation_child_content_class . ' wp-block-navigation-submenu__toggle" aria-expanded="false">' . wp_kses(
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$page['title'],
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wp_kses_allowed_html( 'post' )
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) . '<span class="wp-block-page-list__submenu-icon wp-block-navigation__submenu-icon"><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></span>' .
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'</button>';
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} else {
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$markup .= '<a class="wp-block-pages-list__item__link' . $navigation_child_content_class . ' "href="' . esc_url( $page['link'] ) . '"' . $aria_current . '>' . wp_kses(
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$page['title'],
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wp_kses_allowed_html( 'post' )
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) . '</a>';
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}
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if ( isset( $page['children'] ) ) {
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if ( $is_navigation_child && $show_submenu_icons && ! $open_submenus_on_click ) {
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$markup .= '<button class="wp-block-navigation__submenu-icon wp-block-navigation-submenu__toggle" aria-expanded="false">';
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$markup .= '<span class="wp-block-page-list__submenu-icon wp-block-navigation__submenu-icon"><svg xmlns="http://www.w3.org/2000/svg" width="12" height="12" viewBox="0 0 12 12" fill="none" role="img" aria-hidden="true" focusable="false"><path d="M1.50002 4L6.00002 8L10.5 4" stroke-width="1.5"></path></svg></span>';
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$markup .= '</button>';
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}
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$markup .= '<ul class="submenu-container';
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// Extra classname is added when the block is a child of Navigation.
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if ( $is_navigation_child ) {
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$markup .= ' wp-block-navigation__submenu-container';
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}
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$markup .= '">' . block_core_page_list_render_nested_page_list( $open_submenus_on_click, $show_submenu_icons, $is_navigation_child, $page['children'], $active_page_ancestor_ids, $colors, $depth + 1 ) . '</ul>';
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}
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$markup .= '</li>';
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}
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return $markup;
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}
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/**
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* Outputs nested array of pages
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*
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* @param array $current_level The level being iterated through.
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* @param array $children The children grouped by parent post ID.
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*
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* @return array The nested array of pages.
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*/
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function block_core_page_list_nest_pages( $current_level, $children ) {
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if ( empty( $current_level ) ) {
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return;
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}
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foreach ( (array) $current_level as $key => $current ) {
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if ( isset( $children[ $key ] ) ) {
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$current_level[ $key ]['children'] = block_core_page_list_nest_pages( $children[ $key ], $children );
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}
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}
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return $current_level;
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}
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/**
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* Renders the `core/page-list` block on server.
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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 page list markup.
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*/
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function render_block_core_page_list( $attributes, $content, $block ) {
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static $block_id = 0;
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$block_id++;
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$all_pages = get_pages(
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array(
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'sort_column' => 'menu_order,post_title',
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'order' => 'asc',
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)
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);
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// If thare are no pages, there is nothing to show.
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if ( empty( $all_pages ) ) {
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return;
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}
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$top_level_pages = array();
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$pages_with_children = array();
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$active_page_ancestor_ids = array();
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foreach ( (array) $all_pages as $page ) {
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$is_active = ! empty( $page->ID ) && ( get_the_ID() === $page->ID );
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if ( $is_active ) {
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$active_page_ancestor_ids = get_post_ancestors( $page->ID );
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}
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if ( $page->post_parent ) {
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$pages_with_children[ $page->post_parent ][ $page->ID ] = array(
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'page_id' => $page->ID,
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'title' => $page->post_title,
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'link' => get_permalink( $page->ID ),
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'is_active' => $is_active,
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);
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} else {
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$top_level_pages[ $page->ID ] = array(
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'page_id' => $page->ID,
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'title' => $page->post_title,
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'link' => get_permalink( $page->ID ),
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'is_active' => $is_active,
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);
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}
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}
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$colors = block_core_page_list_build_css_colors( $attributes, $block->context );
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$font_sizes = block_core_page_list_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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$style_attribute = ( $colors['inline_styles'] . $font_sizes['inline_styles'] );
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$css_classes = trim( implode( ' ', $classes ) );
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$nested_pages = block_core_page_list_nest_pages( $top_level_pages, $pages_with_children );
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$is_navigation_child = array_key_exists( 'showSubmenuIcon', $block->context );
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$open_submenus_on_click = array_key_exists( 'openSubmenusOnClick', $block->context ) ? $block->context['openSubmenusOnClick'] : false;
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$show_submenu_icons = array_key_exists( 'showSubmenuIcon', $block->context ) ? $block->context['showSubmenuIcon'] : false;
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$wrapper_markup = '<ul %1$s>%2$s</ul>';
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$items_markup = block_core_page_list_render_nested_page_list( $open_submenus_on_click, $show_submenu_icons, $is_navigation_child, $nested_pages, $active_page_ancestor_ids, $colors );
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$wrapper_attributes = get_block_wrapper_attributes(
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array(
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'class' => $css_classes,
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'style' => $style_attribute,
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)
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);
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return sprintf(
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$wrapper_markup,
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$wrapper_attributes,
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$items_markup
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);
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}
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/**
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* Registers the `core/pages` block on server.
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*/
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function register_block_core_page_list() {
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register_block_type_from_metadata(
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__DIR__ . '/page-list',
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array(
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'render_callback' => 'render_block_core_page_list',
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)
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);
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}
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add_action( 'init', 'register_block_core_page_list' );
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