wikimedia/mediawiki-extensions-Wikibase

/**
 * JavaScript that lazy loads the widget for linking articles on the client
 *
 * @license GPL-2.0-or-later
 * @author Marius Hoch < hoo@online.de >
 */
( function () {
    'use strict';

    function initLinkItem( elem ) {
        var $spinner = $.createSpinner(),
            $linkItemLink = $( elem );

        $linkItemLink
        .hide()
        .after( $spinner );

        mw.loader.using(
            [
                'jquery.wikibase.linkitem',
                'mediawiki.Title',
                'mw.config.values.wbRepo'
            ],
            function () {
                $spinner.remove();

                var repoConfig = mw.config.get( 'wbRepo' ),
                    linkItemConfig = require( './config.json' ),
                    currentSite = linkItemConfig.currentSite;

                $linkItemLink
                .show()
                .linkitem( {
                    pageTitle: ( new mw.Title(
                        mw.config.get( 'wgPageName' )
                    ) ).getPrefixedText(),
                    globalSiteId: currentSite.globalSiteId,
                    namespaceNumber: mw.config.get( 'wgNamespaceNumber' ),
                    repoArticlePath: repoConfig.url + repoConfig.articlePath,
                    langLinkSiteGroup: currentSite.langLinkSiteGroup,
                    tags: linkItemConfig.tags || []
                } );

                var widgetName = $linkItemLink.data( 'linkitem' ).widgetName;

                $linkItemLink
                .on( 'linkitemdialogclose.' + widgetName, function ( event ) {
                    $linkItemLink
                    .off( '.' + widgetName )
                    .data( 'linkitem' ).destroy();
                } )
                .on( 'linkitemsuccess.' + widgetName, function ( event ) {
                    // Don't reshow the "Add links" link but reload the page on dialog close:
                    $linkItemLink
                    .off( '.' + widgetName )
                    .on( 'linkitemdialogclose.' + widgetName, function () {
                        window.location.reload( true );
                    } );
                } );
            },
            function ( error ) {
                // Loading failed, log an error to the console and tell the user.
                /* eslint-disable-next-line no-console */
                console.error( error );

                $spinner.remove();
                $linkItemLink.show();
                mw.notify( mw.msg( 'unknown-error' ) );
            }
        );
    }

    /**
     * Displays the link which opens the dialog (using jquery.wikibase.linkitem)
     */
    $( function () {
        // TODO: $.support is deprecated
        // eslint-disable-next-line no-jquery/no-support
        if ( !$.support.cors ) {
            // This will fail horribly w/o CORS support on WMF-like setups (different domains for repo and client)
            // Just leave the no-JS edit link in place.
            return;
        }

        $( '.wb-langlinks-link > a' ).eq( 0 )
            .on( 'click', function ( event ) {
                event.preventDefault();
                initLinkItem( this );
            } );
    } );
}() );