From 3424afccaebc71c4acd4fa9eadf519c408c5965b Mon Sep 17 00:00:00 2001
From: wolfbeast <mcwerewolf@wolfbeast.com>
Date: Fri, 26 Apr 2019 14:13:32 +0200
Subject: Capture delayed events and cancel as necessary.

Tag #1052
---
 layout/base/nsPresShell.cpp | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'layout/base/nsPresShell.cpp')

diff --git a/layout/base/nsPresShell.cpp b/layout/base/nsPresShell.cpp
index 5dfbb8dba..d4fbebbf2 100644
--- a/layout/base/nsPresShell.cpp
+++ b/layout/base/nsPresShell.cpp
@@ -8192,6 +8192,9 @@ PresShell::HandleEventInternal(WidgetEvent* aEvent,
           }
         }
       }
+      if (aEvent->mMessage == eKeyDown) {
+        mIsLastKeyDownCanceled = aEvent->mFlags.mDefaultPrevented;
+      }
       break;
     }
     case eMouseUp:
@@ -8981,6 +8984,9 @@ PresShell::FireOrClearDelayedEvents(bool aFireEvents)
            !doc->EventHandlingSuppressed()) {
       nsAutoPtr<DelayedEvent> ev(mDelayedEvents[0].forget());
       mDelayedEvents.RemoveElementAt(0);
+      if (ev->IsKeyPressEvent() && mIsLastKeyDownCanceled) {
+        continue;
+      }
       ev->Dispatch();
     }
     if (!doc->EventHandlingSuppressed()) {
@@ -9775,6 +9781,12 @@ PresShell::DelayedKeyEvent::DelayedKeyEvent(WidgetKeyboardEvent* aEvent) :
   mEvent = keyEvent;
 }
 
+bool
+PresShell::DelayedKeyEvent::IsKeyPressEvent()
+{
+  return mEvent->mMessage == eKeyPress;
+}
+
 // Start of DEBUG only code
 
 #ifdef DEBUG
-- 
cgit v1.2.3