gallery.accords-library.com/client/js/controllers/help_controller.js

'use strict';

const topNavigation = require('../models/top_navigation.js');
const HelpView = require('../views/help_view.js');

class HelpController {
    constructor(section, subsection) {
        topNavigation.activate('help');
        topNavigation.setTitle('Help');
        this._helpView = new HelpView(section, subsection);
    }
}

module.exports = router => {
    router.enter(['help'], (ctx, next) => {
        new HelpController();
    });
    router.enter(['help', ':section'], (ctx, next) => {
        new HelpController(ctx.parameters.section);
    });
    router.enter(['help', ':section', ':subsection'], (ctx, next) => {
        new HelpController(ctx.parameters.section, ctx.parameters.subsection);
    });
};