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03a901192a
The Dark Mode toggle can appear in both bottom corners. This removes “right” from the description to be accurate for both RTL and LTR languages. Props musabshakeel, dilipbheda, sabernhardt. Fixes #53892. Built from https://develop.svn.wordpress.org/trunk@52211 git-svn-id: http://core.svn.wordpress.org/trunk@51803 1a063a9b-81f0-0310-95a4-ce76da25c4cd
385 lines
12 KiB
PHP
385 lines
12 KiB
PHP
<?php
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/**
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* Dark Mode Class
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*
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* @package WordPress
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* @subpackage Twenty_Twenty_One
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* @since Twenty Twenty-One 1.0
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*/
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/**
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* This class is in charge of Dark Mode.
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*/
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class Twenty_Twenty_One_Dark_Mode {
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/**
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* Instantiate the object.
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*
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* @since Twenty Twenty-One 1.0
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*/
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public function __construct() {
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// Enqueue assets for the block-editor.
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add_action( 'enqueue_block_editor_assets', array( $this, 'editor_custom_color_variables' ) );
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// Add styles for dark-mode.
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add_action( 'wp_enqueue_scripts', array( $this, 'enqueue_scripts' ) );
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// Add scripts for customizer controls.
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add_action( 'customize_controls_enqueue_scripts', array( $this, 'customize_controls_enqueue_scripts' ) );
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// Add customizer controls.
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add_action( 'customize_register', array( $this, 'customizer_controls' ) );
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// Add HTML classes.
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add_filter( 'twentytwentyone_html_classes', array( $this, 'html_classes' ) );
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// Add classes to <body> in the dashboard.
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add_filter( 'admin_body_class', array( $this, 'admin_body_classes' ) );
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// Add the switch on the frontend & customizer.
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add_action( 'wp_footer', array( $this, 'the_switch' ) );
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// Add the privacy policy content.
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add_action( 'admin_init', array( $this, 'add_privacy_policy_content' ) );
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}
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/**
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* Editor custom color variables & scripts.
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*
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* @since Twenty Twenty-One 1.0
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*
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* @return void
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*/
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public function editor_custom_color_variables() {
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if ( ! $this->switch_should_render() ) {
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return;
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}
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$background_color = get_theme_mod( 'background_color', 'D1E4DD' );
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$should_respect_color_scheme = get_theme_mod( 'respect_user_color_preference', false );
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if ( $should_respect_color_scheme && Twenty_Twenty_One_Custom_Colors::get_relative_luminance_from_hex( $background_color ) > 127 ) {
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// Add Dark Mode variable overrides.
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wp_add_inline_style(
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'twenty-twenty-one-custom-color-overrides',
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'.is-dark-theme.is-dark-theme .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); --button--color-text: var(--global--color-background); --button--color-text-hover: var(--global--color-secondary); --button--color-text-active: var(--global--color-secondary); --button--color-background: var(--global--color-secondary); --button--color-background-active: var(--global--color-background); --global--color-border: #9ea1a7; --table--stripes-border-color: rgba(240, 240, 240, 0.15); --table--stripes-background-color: rgba(240, 240, 240, 0.15); }'
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);
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}
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wp_enqueue_script(
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'twentytwentyone-dark-mode-support-toggle',
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get_template_directory_uri() . '/assets/js/dark-mode-toggler.js',
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array(),
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'1.0.0',
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true
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);
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wp_enqueue_script(
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'twentytwentyone-editor-dark-mode-support',
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get_template_directory_uri() . '/assets/js/editor-dark-mode-support.js',
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array( 'twentytwentyone-dark-mode-support-toggle' ),
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'1.0.0',
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true
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);
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}
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/**
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* Enqueue scripts and styles.
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*
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* @since Twenty Twenty-One 1.0
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*
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* @return void
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*/
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public function enqueue_scripts() {
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if ( ! $this->switch_should_render() ) {
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return;
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}
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$url = get_template_directory_uri() . '/assets/css/style-dark-mode.css';
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if ( is_rtl() ) {
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$url = get_template_directory_uri() . '/assets/css/style-dark-mode-rtl.css';
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}
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wp_enqueue_style( 'tt1-dark-mode', $url, array( 'twenty-twenty-one-style' ), wp_get_theme()->get( 'Version' ) ); // @phpstan-ignore-line. Version is always a string.
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}
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/**
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* Enqueue scripts for the customizer.
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*
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* @since Twenty Twenty-One 1.0
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*
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* @return void
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*/
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public function customize_controls_enqueue_scripts() {
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if ( ! $this->switch_should_render() ) {
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return;
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}
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wp_enqueue_script(
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'twentytwentyone-customize-controls',
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get_template_directory_uri() . '/assets/js/customize.js',
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array( 'customize-base', 'customize-controls', 'underscore', 'jquery', 'twentytwentyone-customize-helpers' ),
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'1.0.0',
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true
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);
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}
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/**
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* Register customizer options.
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*
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* @since Twenty Twenty-One 1.0
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*
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* @param WP_Customize_Manager $wp_customize Theme Customizer object.
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* @return void
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*/
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public function customizer_controls( $wp_customize ) {
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$colors_section = $wp_customize->get_section( 'colors' );
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if ( is_object( $colors_section ) ) {
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$colors_section->title = __( 'Colors & Dark Mode', 'twentytwentyone' );
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}
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// Custom notice control.
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include_once get_theme_file_path( 'classes/class-twenty-twenty-one-customize-notice-control.php' ); // phpcs:ignore WPThemeReview.CoreFunctionality.FileInclude.FileIncludeFound
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$wp_customize->add_setting(
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'respect_user_color_preference_notice',
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array(
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'capability' => 'edit_theme_options',
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'default' => '',
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'sanitize_callback' => '__return_empty_string',
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)
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);
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$wp_customize->add_control(
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new Twenty_Twenty_One_Customize_Notice_Control(
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$wp_customize,
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'respect_user_color_preference_notice',
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array(
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'section' => 'colors',
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'priority' => 100,
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'active_callback' => static function() {
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return 127 >= Twenty_Twenty_One_Custom_Colors::get_relative_luminance_from_hex( get_theme_mod( 'background_color', 'D1E4DD' ) );
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},
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)
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)
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);
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$wp_customize->add_setting(
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'respect_user_color_preference',
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array(
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'capability' => 'edit_theme_options',
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'default' => false,
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'sanitize_callback' => static function( $value ) {
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return (bool) $value;
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},
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)
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);
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$description = '<p>';
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$description .= sprintf(
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/* translators: %s: Twenty Twenty-One support article URL. */
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__( 'Dark Mode is a device setting. If a visitor to your site requests it, your site will be shown with a dark background and light text. <a href="%s">Learn more about Dark Mode.</a>', 'twentytwentyone' ),
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esc_url( __( 'https://wordpress.org/support/article/twenty-twenty-one/#dark-mode-support', 'twentytwentyone' ) )
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);
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$description .= '</p>';
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$description .= '<p>' . __( 'Dark Mode can also be turned on and off with a button that you can find in the bottom corner of the page.', 'twentytwentyone' ) . '</p>';
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$wp_customize->add_control(
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'respect_user_color_preference',
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array(
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'type' => 'checkbox',
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'section' => 'colors',
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'label' => esc_html__( 'Dark Mode support', 'twentytwentyone' ),
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'priority' => 110,
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'description' => $description,
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'active_callback' => static function( $value ) {
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return 127 < Twenty_Twenty_One_Custom_Colors::get_relative_luminance_from_hex( get_theme_mod( 'background_color', 'D1E4DD' ) );
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},
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)
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);
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// Add partial for background_color.
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$wp_customize->selective_refresh->add_partial(
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'background_color',
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array(
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'selector' => '#dark-mode-toggler',
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'container_inclusive' => true,
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'render_callback' => function() {
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$attrs = ( $this->switch_should_render() ) ? array() : array( 'style' => 'display:none;' );
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$this->the_html( $attrs );
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},
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)
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);
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}
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/**
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* Calculate classes for the main <html> element.
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*
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* @since Twenty Twenty-One 1.0
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*
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* @param string $classes The classes for <html> element.
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* @return string
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*/
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public function html_classes( $classes ) {
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if ( ! $this->switch_should_render() ) {
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return $classes;
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}
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$background_color = get_theme_mod( 'background_color', 'D1E4DD' );
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$should_respect_color_scheme = get_theme_mod( 'respect_user_color_preference', false );
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if ( $should_respect_color_scheme && 127 <= Twenty_Twenty_One_Custom_Colors::get_relative_luminance_from_hex( $background_color ) ) {
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return ( $classes ) ? ' respect-color-scheme-preference' : 'respect-color-scheme-preference';
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}
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return $classes;
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}
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/**
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* Adds a class to the <body> element in the editor to accommodate dark-mode.
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*
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* @since Twenty Twenty-One 1.0
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*
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* @param string $classes The admin body-classes.
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* @return string
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*/
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public function admin_body_classes( $classes ) {
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if ( ! $this->switch_should_render() ) {
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return $classes;
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}
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global $current_screen;
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if ( empty( $current_screen ) ) {
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set_current_screen();
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}
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if ( $current_screen->is_block_editor() ) {
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$should_respect_color_scheme = get_theme_mod( 'respect_user_color_preference', false );
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$background_color = get_theme_mod( 'background_color', 'D1E4DD' );
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if ( $should_respect_color_scheme && Twenty_Twenty_One_Custom_Colors::get_relative_luminance_from_hex( $background_color ) > 127 ) {
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$classes .= ' twentytwentyone-supports-dark-theme';
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}
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}
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return $classes;
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}
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/**
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* Determine if we want to print the dark-mode switch or not.
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*
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* @since Twenty Twenty-One 1.0
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*
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* @return bool
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*/
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public function switch_should_render() {
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global $is_IE;
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return (
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get_theme_mod( 'respect_user_color_preference', false ) &&
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! $is_IE &&
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127 <= Twenty_Twenty_One_Custom_Colors::get_relative_luminance_from_hex( get_theme_mod( 'background_color', 'D1E4DD' ) )
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);
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}
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/**
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* Add night/day switch.
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*
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* @since Twenty Twenty-One 1.0
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*
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* @return void
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*/
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public function the_switch() {
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if ( ! $this->switch_should_render() ) {
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return;
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}
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$this->the_html();
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$this->the_script();
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}
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/**
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* Print the dark-mode switch HTML.
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*
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* Inspired from https://codepen.io/aaroniker/pen/KGpXZo (MIT-licensed)
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*
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* @since Twenty Twenty-One 1.0
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*
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* @param array $attrs The attributes to add to our <button> element.
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* @return void
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*/
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public function the_html( $attrs = array() ) {
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$attrs = wp_parse_args(
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$attrs,
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array(
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'id' => 'dark-mode-toggler',
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'class' => 'fixed-bottom',
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'aria-pressed' => 'false',
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'onClick' => 'toggleDarkMode()',
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)
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);
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echo '<button';
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foreach ( $attrs as $key => $val ) {
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echo ' ' . esc_attr( $key ) . '="' . esc_attr( $val ) . '"';
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}
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echo '>';
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printf(
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/* translators: %s: On/Off */
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esc_html__( 'Dark Mode: %s', 'twentytwentyone' ),
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'<span aria-hidden="true"></span>'
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);
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echo '</button>';
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?>
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<style>
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#dark-mode-toggler > span {
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margin-<?php echo is_rtl() ? 'right' : 'left'; ?>: 5px;
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}
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#dark-mode-toggler > span::before {
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content: '<?php esc_attr_e( 'Off', 'twentytwentyone' ); ?>';
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}
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#dark-mode-toggler[aria-pressed="true"] > span::before {
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content: '<?php esc_attr_e( 'On', 'twentytwentyone' ); ?>';
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}
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<?php if ( is_admin() || wp_is_json_request() ) : ?>
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.components-editor-notices__pinned ~ .edit-post-visual-editor #dark-mode-toggler {
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z-index: 20;
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}
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.is-dark-theme.is-dark-theme #dark-mode-toggler:not(:hover):not(:focus) {
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color: var(--global--color-primary);
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}
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@media only screen and (max-width: 782px) {
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#dark-mode-toggler {
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margin-top: 32px;
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}
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}
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<?php endif; ?>
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</style>
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<?php
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}
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/**
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* Print the dark-mode switch script.
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*
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* @since Twenty Twenty-One 1.0
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*
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* @return void
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*/
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public function the_script() {
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echo '<script>';
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include get_template_directory() . '/assets/js/dark-mode-toggler.js'; // phpcs:ignore WPThemeReview.CoreFunctionality.FileInclude
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echo '</script>';
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}
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/**
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* Adds information to the privacy policy.
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*
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* @since Twenty Twenty-One 1.0
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*
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* @return void
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*/
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public function add_privacy_policy_content() {
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if ( ! function_exists( 'wp_add_privacy_policy_content' ) ) {
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return;
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}
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$content = '<p class="privacy-policy-tutorial">' . __( 'Twenty Twenty-One uses LocalStorage when Dark Mode support is enabled.', 'twentytwentyone' ) . '</p>'
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. '<strong class="privacy-policy-tutorial">' . __( 'Suggested text:', 'twentytwentyone' ) . '</strong> '
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. __( 'This website uses LocalStorage to save the setting when Dark Mode support is turned on or off.<br> LocalStorage is necessary for the setting to work and is only used when a user clicks on the Dark Mode button.<br> No data is saved in the database or transferred.', 'twentytwentyone' );
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wp_add_privacy_policy_content( 'Twenty Twenty-One', wp_kses_post( wpautop( $content, false ) ) );
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}
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}
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