browser event: stop

src/vs/base/browser/event.ts

@@ -4,7 +4,7 @@
  *--------------------------------------------------------------------------------------------*/
 'use strict';
 
-import _Event, { Emitter }  from 'vs/base/common/event';
+import _Event, { Emitter, mapEvent }  from 'vs/base/common/event';
 
 export type EventHandler = HTMLElement | HTMLDocument | Window;
 
@@ -127,3 +127,11 @@ export const domEvent: IDomEvent = (element: EventHandler, type: string, useCapt
 
 	return emitter.event;
 };
+
+export function stop<T extends Event>(event: _Event<T>): _Event<T> {
+	return mapEvent(event, e => {
+		e.preventDefault();
+		e.stopPropagation();
+		return e;
+	});
+}
\ No newline at end of file