src/vs/base/browser/touch.ts/Gesture/ignoreTarget
class Gesture:	public static ignoreTarget(element: HTMLElement): IDisposable {
		if (!Gesture.isTouchDevice()) {
			return Disposable.None;
		}
		if (!Gesture.INSTANCE) {
			Gesture.INSTANCE = new Gesture();
		}

		Gesture.INSTANCE.ignoreTargets.push(element);

		return {
			dispose: () => {
				Gesture.INSTANCE.ignoreTargets = Gesture.INSTANCE.ignoreTargets.filter(t => t !== element);
			}
		};
	}