wikimedia/mediawiki-core

/*!
 * JavaScript for Special:UnwatchedPages
 */
( function () {
    $( function () {
        $( 'a.mw-watch-link' ).on( 'click', function ( e ) {
            var promise,
                api = new mw.Api(),
                $link = $( this ),
                $subjectLink = $link.closest( 'li' ).children( 'a' ).eq( 0 ),
                title = mw.util.getParamValue( 'title', $link.attr( 'href' ) );
            // nice format
            title = mw.Title.newFromText( title ).toText();
            $link.addClass( 'mw-watch-link-disabled' );

            // Preload the notification module for mw.notify
            mw.loader.load( 'mediawiki.notification' );

            // Use the class to determine whether to watch or unwatch
            // eslint-disable-next-line no-jquery/no-class-state
            if ( !$subjectLink.hasClass( 'mw-watched-item' ) ) {
                $link.text( mw.msg( 'watching' ) );
                promise = api.watch( title ).done( function () {
                    $subjectLink.addClass( 'mw-watched-item' );
                    $link.text( mw.msg( 'unwatch' ) );
                    mw.notify( mw.msg( 'addedwatchtext-short', title ) );
                } ).fail( function ( code, data ) {
                    $link.text( mw.msg( 'watch' ) );
                    mw.notify( api.getErrorMessage( data ), { type: 'error' } );
                } );
            } else {
                $link.text( mw.msg( 'unwatching' ) );
                promise = api.unwatch( title ).done( function () {
                    $subjectLink.removeClass( 'mw-watched-item' );
                    $link.text( mw.msg( 'watch' ) );
                    mw.notify( mw.msg( 'removedwatchtext-short', title ) );
                } ).fail( function ( code, data ) {
                    $link.text( mw.msg( 'unwatch' ) );
                    mw.notify( api.getErrorMessage( data ), { type: 'error' } );
                } );
            }

            promise.always( function () {
                $link.removeClass( 'mw-watch-link-disabled' );
            } );

            e.preventDefault();
        } );
    } );
}() );