PatrickStore.js

/* Put this somewhere */
class PatrickStore extends EventEmitter {
	closeContainer() {
		this.emit('closeContainer');
	}

	openContainer() {
		this.emit('openContainer');
	}
}

window.store = new PatrickStore();

/* In Your Component */

class MyContainerThing extends Component {
	created() {
		this._handler = window.store.on('closeContainer', () => {
			this.open = true;
		});
	}

	disposed() {
		this._handler.dispose();
	}
}

/* Somewhere Else */

class OtherThing extends Component {
	handleSomeClick_() {
		window.store.openContainer();
	}
}