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 ';
?>
';
include get_template_directory() . '/assets/js/dark-mode-toggler.js'; // phpcs:ignore WPThemeReview.CoreFunctionality.FileInclude
echo '';
}
/**
* Print the dark-mode switch styles.
*
* @access public
*
* @since 1.0.0
*
* @return void
*/
public function the_styles() {
echo '';
}
/**
* Call the tt1_the_dark_mode_switch and exit.
*
* @access public
*
* @since 1.0.0
*
* @return void
*/
public function editor_ajax_callback() {
$this->the_html();
$this->the_styles();
wp_die();
}
}