diff options
Diffstat (limited to 'wp-includes/blocks/calendar.php')
| -rw-r--r-- | wp-includes/blocks/calendar.php | 176 |
1 files changed, 176 insertions, 0 deletions
diff --git a/wp-includes/blocks/calendar.php b/wp-includes/blocks/calendar.php new file mode 100644 index 0000000..f1f7967 --- /dev/null +++ b/wp-includes/blocks/calendar.php @@ -0,0 +1,176 @@ +<?php +/** + * Server-side rendering of the `core/calendar` block. + * + * @package WordPress + */ + +/** + * Renders the `core/calendar` block on server. + * + * @param array $attributes The block attributes. + * + * @return string Returns the block content. + */ +function render_block_core_calendar( $attributes ) { + global $monthnum, $year; + + // Calendar shouldn't be rendered + // when there are no published posts on the site. + if ( ! block_core_calendar_has_published_posts() ) { + if ( is_user_logged_in() ) { + return '<div>' . __( 'The calendar block is hidden because there are no published posts.' ) . '</div>'; + } + return ''; + } + + $previous_monthnum = $monthnum; + $previous_year = $year; + + if ( isset( $attributes['month'] ) && isset( $attributes['year'] ) ) { + $permalink_structure = get_option( 'permalink_structure' ); + if ( + str_contains( $permalink_structure, '%monthnum%' ) && + str_contains( $permalink_structure, '%year%' ) + ) { + // phpcs:ignore WordPress.WP.GlobalVariablesOverride.OverrideProhibited + $monthnum = $attributes['month']; + // phpcs:ignore WordPress.WP.GlobalVariablesOverride.OverrideProhibited + $year = $attributes['year']; + } + } + + $color_block_styles = array(); + + // Text color. + $preset_text_color = array_key_exists( 'textColor', $attributes ) ? "var:preset|color|{$attributes['textColor']}" : null; + $custom_text_color = $attributes['style']['color']['text'] ?? null; + $color_block_styles['text'] = $preset_text_color ? $preset_text_color : $custom_text_color; + + // Background Color. + $preset_background_color = array_key_exists( 'backgroundColor', $attributes ) ? "var:preset|color|{$attributes['backgroundColor']}" : null; + $custom_background_color = $attributes['style']['color']['background'] ?? null; + $color_block_styles['background'] = $preset_background_color ? $preset_background_color : $custom_background_color; + + // Generate color styles and classes. + $styles = wp_style_engine_get_styles( array( 'color' => $color_block_styles ), array( 'convert_vars_to_classnames' => true ) ); + $inline_styles = empty( $styles['css'] ) ? '' : sprintf( ' style="%s"', esc_attr( $styles['css'] ) ); + $classnames = empty( $styles['classnames'] ) ? '' : ' ' . esc_attr( $styles['classnames'] ); + if ( isset( $attributes['style']['elements']['link']['color']['text'] ) ) { + $classnames .= ' has-link-color'; + } + // Apply color classes and styles to the calendar. + $calendar = str_replace( '<table', '<table' . $inline_styles, get_calendar( true, false ) ); + $calendar = str_replace( 'class="wp-calendar-table', 'class="wp-calendar-table' . $classnames, $calendar ); + + $wrapper_attributes = get_block_wrapper_attributes(); + $output = sprintf( + '<div %1$s>%2$s</div>', + $wrapper_attributes, + $calendar + ); + + // phpcs:ignore WordPress.WP.GlobalVariablesOverride.OverrideProhibited + $monthnum = $previous_monthnum; + // phpcs:ignore WordPress.WP.GlobalVariablesOverride.OverrideProhibited + $year = $previous_year; + + return $output; +} + +/** + * Registers the `core/calendar` block on server. + */ +function register_block_core_calendar() { + register_block_type_from_metadata( + __DIR__ . '/calendar', + array( + 'render_callback' => 'render_block_core_calendar', + ) + ); +} + +add_action( 'init', 'register_block_core_calendar' ); + +/** + * Returns whether or not there are any published posts. + * + * Used to hide the calendar block when there are no published posts. + * This compensates for a known Core bug: https://core.trac.wordpress.org/ticket/12016 + * + * @return bool Has any published posts or not. + */ +function block_core_calendar_has_published_posts() { + // Multisite already has an option that stores the count of the published posts. + // Let's use that for multisites. + if ( is_multisite() ) { + return 0 < (int) get_option( 'post_count' ); + } + + // On single sites we try our own cached option first. + $has_published_posts = get_option( 'wp_calendar_block_has_published_posts', null ); + if ( null !== $has_published_posts ) { + return (bool) $has_published_posts; + } + + // No cache hit, let's update the cache and return the cached value. + return block_core_calendar_update_has_published_posts(); +} + +/** + * Queries the database for any published post and saves + * a flag whether any published post exists or not. + * + * @return bool Has any published posts or not. + */ +function block_core_calendar_update_has_published_posts() { + global $wpdb; + $has_published_posts = (bool) $wpdb->get_var( "SELECT 1 as test FROM {$wpdb->posts} WHERE post_type = 'post' AND post_status = 'publish' LIMIT 1" ); + update_option( 'wp_calendar_block_has_published_posts', $has_published_posts ); + return $has_published_posts; +} + +// We only want to register these functions and actions when +// we are on single sites. On multi sites we use `post_count` option. +if ( ! is_multisite() ) { + /** + * Handler for updating the has published posts flag when a post is deleted. + * + * @param int $post_id Deleted post ID. + */ + function block_core_calendar_update_has_published_post_on_delete( $post_id ) { + $post = get_post( $post_id ); + + if ( ! $post || 'publish' !== $post->post_status || 'post' !== $post->post_type ) { + return; + } + + block_core_calendar_update_has_published_posts(); + } + + /** + * Handler for updating the has published posts flag when a post status changes. + * + * @param string $new_status The status the post is changing to. + * @param string $old_status The status the post is changing from. + * @param WP_Post $post Post object. + */ + function block_core_calendar_update_has_published_post_on_transition_post_status( $new_status, $old_status, $post ) { + if ( $new_status === $old_status ) { + return; + } + + if ( 'post' !== get_post_type( $post ) ) { + return; + } + + if ( 'publish' !== $new_status && 'publish' !== $old_status ) { + return; + } + + block_core_calendar_update_has_published_posts(); + } + + add_action( 'delete_post', 'block_core_calendar_update_has_published_post_on_delete' ); + add_action( 'transition_post_status', 'block_core_calendar_update_has_published_post_on_transition_post_status', 10, 3 ); +} |