From 28e6a045dbcb0c57b2afac44c5b4e784182cf3e9 Mon Sep 17 00:00:00 2001
From: waterplea <alexander@inkin.ru>
Date: Tue, 13 Oct 2020 22:27:21 +0300
Subject: [PATCH] fix(observables): `pressedObservable` ignore synthetic events

---
 projects/cdk/observables/pressed-observable.ts | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/projects/cdk/observables/pressed-observable.ts b/projects/cdk/observables/pressed-observable.ts
index 24b7beac939a..259b326365a3 100644
--- a/projects/cdk/observables/pressed-observable.ts
+++ b/projects/cdk/observables/pressed-observable.ts
@@ -1,5 +1,5 @@
 import {Observable} from 'rxjs';
-import {mapTo, startWith, switchMapTo, take} from 'rxjs/operators';
+import {filter, mapTo, startWith, switchMapTo, take} from 'rxjs/operators';
 import {mouseDragFinishFrom} from './mouse-drag-finish-from';
 import {typedFromEvent} from './typed-from-event';
 
@@ -11,6 +11,7 @@ export function pressedObservable(element: Element): Observable<boolean> {
     }
 
     return typedFromEvent(element, 'mousedown').pipe(
+        filter(({isTrusted}) => isTrusted),
         switchMapTo(
             mouseDragFinishFrom(ownerDocument).pipe(
                 mapTo(false),