in the dashboard. add_filter( 'admin_body_class', array( $this, 'admin_body_classes' ) ); // Add the switch on the frontend & customizer. add_action( 'get_template_part_template-parts/header/site-nav', array( $this, 'the_switch' ) ); // Add the switch in the editor. add_action( 'wp_ajax_tt1_dark_mode_editor_switch', array( $this, 'editor_ajax_callback' ) ); } /** * Editor custom color variables & scripts. * * @access public * * @since 1.0.0 * * @return void */ public function editor_custom_color_variables() { if ( ! $this->switch_should_render() ) { return; } $background_color = get_theme_mod( 'background_color', 'D1E4DD' ); $should_respect_color_scheme = get_theme_mod( 'respect_user_color_preference', false ); if ( $should_respect_color_scheme && Twenty_Twenty_One_Custom_Colors::get_relative_luminance_from_hex( $background_color ) > 127 ) { // Add dark mode variable overrides. wp_add_inline_style( 'twenty-twenty-one-custom-color-overrides', 'html.is-dark-mode .editor-styles-wrapper { --global--color-background: var(--global--color-dark-gray); --global--color-primary: var(--global--color-light-gray); --global--color-secondary: var(--global--color-light-gray); }' ); } wp_enqueue_script( 'twentytwentyone-dark-mode-support-toggle', get_template_directory_uri() . '/assets/js/dark-mode-toggler.js', array(), '1.0.0', true ); wp_enqueue_script( 'twentytwentyone-editor-dark-mode-support', get_template_directory_uri() . '/assets/js/editor-dark-mode-support.js', array( 'twentytwentyone-dark-mode-support-toggle' ), '1.0.0', true ); } /** * Enqueue scripts and styles. * * @access public * * @since 1.0.0 * * @return void */ public function enqueue_scripts() { if ( ! $this->switch_should_render() ) { return; } wp_enqueue_style( 'tt1-dark-mode', get_template_directory_uri() . '/assets/css/style-dark-mode.css', array( 'twenty-twenty-one-style' ), '1.0.0' ); } /** * Enqueue scripts for the customizer. * * @access public * * @since 1.0.0 * * @return void */ public function customize_controls_enqueue_scripts() { if ( ! $this->switch_should_render() ) { return; } wp_enqueue_script( 'twentytwentyone-customize-controls', get_template_directory_uri() . '/assets/js/customize.js', array( 'customize-base', 'customize-controls', 'underscore', 'jquery', 'twentytwentyone-customize-helpers' ), '1.0.0', true ); wp_localize_script( 'twentytwentyone-customize-controls', 'backgroundColorNotice', array( 'message' => esc_html__( 'Changes will only be visible if Dark Mode is "Off" in the preview', 'twentytwentyone' ), ) ); } /** * Register customizer options. * * @access public * * @since 1.0.0 * * @param WP_Customize_Manager $wp_customize Theme Customizer object. * * @return void */ public function customizer_controls( $wp_customize ) { $wp_customize->add_setting( 'respect_user_color_preference', array( 'capability' => 'edit_theme_options', 'default' => false, 'sanitize_callback' => function( $value ) { return (bool) $value; }, ) ); $wp_customize->add_control( 'respect_user_color_preference', array( 'type' => 'checkbox', 'section' => 'colors', 'label' => esc_html__( 'Respect visitor\'s device dark mode settings', 'twentytwentyone' ), 'description' => __( 'Dark mode is a device setting. If a visitor to your site requests it, your site will be shown with a dark background and light text.', 'twentytwentyone' ), 'active_callback' => function( $value ) { return 127 < Twenty_Twenty_One_Custom_Colors::get_relative_luminance_from_hex( get_theme_mod( 'background_color', 'D1E4DD' ) ); }, ) ); // Add partial for background_color. $wp_customize->selective_refresh->add_partial( 'background_color', array( 'selector' => '#dark-mode-toggler', 'container_inclusive' => true, 'render_callback' => function() { $attrs = ( $this->switch_should_render() ) ? array() : array( 'style' => 'display:none;' ); $this->the_html( $attrs ); }, ) ); } /** * Calculate classes for the main element. * * @access public * * @since 1.0.0 * * @param string $classes The classes for element. * * @return string */ public function html_classes( $classes ) { if ( ! $this->switch_should_render() ) { return $classes; } $background_color = get_theme_mod( 'background_color', 'D1E4DD' ); $should_respect_color_scheme = get_theme_mod( 'respect_user_color_preference', false ); if ( $should_respect_color_scheme && 127 <= Twenty_Twenty_One_Custom_Colors::get_relative_luminance_from_hex( $background_color ) ) { return ( $classes ) ? ' respect-color-scheme-preference' : 'respect-color-scheme-preference'; } return $classes; } /** * Adds a class to the
element in the editor to accommodate dark-mode. * * @access public * * @since 1.0.0 * * @param string $classes The admin body-classes. * * @return string */ public function admin_body_classes( $classes ) { if ( ! $this->switch_should_render() ) { return $classes; } global $current_screen; if ( empty( $current_screen ) ) { set_current_screen(); } if ( $current_screen->is_block_editor() ) { $should_respect_color_scheme = get_theme_mod( 'respect_user_color_preference', false ); $background_color = get_theme_mod( 'background_color', 'D1E4DD' ); if ( $should_respect_color_scheme && Twenty_Twenty_One_Custom_Colors::get_relative_luminance_from_hex( $background_color ) > 127 ) { $classes .= ' twentytwentyone-supports-dark-theme'; } } return $classes; } /** * Determine if we want to print the dark-mode switch or not. * * @access public * * @since 1.0.0 * * @return bool */ public function switch_should_render() { global $is_IE; return ( get_theme_mod( 'respect_user_color_preference', false ) && ! $is_IE && 127 <= Twenty_Twenty_One_Custom_Colors::get_relative_luminance_from_hex( get_theme_mod( 'background_color', 'D1E4DD' ) ) ); } /** * Add night/day switch. * * @access public * * @since 1.0.0 * * @return void */ public function the_switch() { if ( ! $this->switch_should_render() ) { return; } $this->the_html(); $this->the_script(); } /** * Print the dark-mode switch HTML. * * Inspired from https://codepen.io/aaroniker/pen/KGpXZo (MIT-licensed) * * @access public * * @since 1.0.0 * * @param array $attrs The attributes to add to our