MediaWiki:Dark-mode.js

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/* 
 * WikimediaUI Dark Mode
 *
 * Original authors:
 * - Volker E. (Wikimedia Foundation Product Design)
 * - Alex Hollender  (Wikimedia Foundation Product Design)
 * - Ed Sanders
 * - MusikAnimal
 *
 * Last updated: 2020-04-24
 */

// Load dependencies (remove when loading through ResourceLoader).
mw.loader.load( 'https://en.wikipedia.org/w/index.php?title=User:Volker_E._(WMF)/dark-mode.css&action=raw&ctype=text/css', 'text/css' );
// User has dark color scheme preference set in operating system.
if ( window.matchMedia( '( prefers-color-scheme: dark )' ).matches || mw.storage.get( 'client-dark-mode-toggle' ) === '1' ) {
	document.documentElement.className = 'client-dark-mode';
}

$( function () {
	// Fix logos.
	$( '#p-logo' ).clone().addClass( 'mw-no-invert' ).insertAfter( '#p-logo' );
	
	mw.util.addPortletLink( 'p-personal', '#', 'Dark mode', 'pt-darkmode', '', 'np', '#pt-watchlist' );

    $( '#pt-darkmode' ).on( 'click', function( e ) {
    	var $html = $( 'html' );
        e.preventDefault();
        
        $html.toggleClass( 'client-dark-mode' );
        mw.storage.set(
			'client-dark-mode-toggle',
			String( Number( $html.hasClass( 'client-dark-mode' ) ) )
		);
    } );
} );