salix/modules/monitor/front/index/index.js

import ngModule from '../module';
import Section from 'salix/components/section';
import './style.scss';

export default class Controller extends Section {
    toggle() {
        const monitor = this.element.querySelector('vn-horizontal');
        const isHidden = monitor.classList.contains('hidden');

        if (!isHidden)
            monitor.classList.add('hidden');
        else
            monitor.classList.remove('hidden');
    }
}

ngModule.vnComponent('vnMonitorIndex', {
    template: require('./index.html'),
    controller: Controller,
    require: {
        main: '^vnMonitorIndex'
    }
});