1 files changed, 90 insertions, 0 deletions
diff --git a/dom/events/AsyncEventDispatcher.cpp b/dom/events/AsyncEventDispatcher.cpp
new file mode 100644
index 0000000000..da36f79939
--- /dev/null
+++ b/dom/events/AsyncEventDispatcher.cpp
@@ -0,0 +1,90 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "mozilla/AsyncEventDispatcher.h"
+#include "mozilla/BasicEvents.h"
+#include "mozilla/EventDispatcher.h"
+#include "mozilla/dom/Event.h" // for nsIDOMEvent::InternalDOMEvent()
+#include "mozilla/dom/EventTarget.h"
+#include "nsContentUtils.h"
+#include "nsIDOMEvent.h"
+
+namespace mozilla {
+
+using namespace dom;
+
+/******************************************************************************
+ * mozilla::AsyncEventDispatcher
+ ******************************************************************************/
+
+AsyncEventDispatcher::AsyncEventDispatcher(EventTarget* aTarget,
+                                           WidgetEvent& aEvent)
+  : mTarget(aTarget)
+{
+  MOZ_ASSERT(mTarget);
+  RefPtr<Event> event =
+    EventDispatcher::CreateEvent(aTarget, nullptr, &aEvent, EmptyString());
+  mEvent = event.forget();
+  NS_ASSERTION(mEvent, "Should never fail to create an event");
+  mEvent->DuplicatePrivateData();
+  mEvent->SetTrusted(aEvent.IsTrusted());
+}
+
+NS_IMETHODIMP
+AsyncEventDispatcher::Run()
+{
+  if (mCanceled) {
+    return NS_OK;
+  }
+  mTarget->AsyncEventRunning(this);
+  RefPtr<Event> event = mEvent ? mEvent->InternalDOMEvent() : nullptr;
+  if (!event) {
+    event = NS_NewDOMEvent(mTarget, nullptr, nullptr);
+    event->InitEvent(mEventType, mBubbles, false);
+    event->SetTrusted(true);
+  }
+  if (mOnlyChromeDispatch) {
+    MOZ_ASSERT(event->IsTrusted());
+    event->WidgetEventPtr()->mFlags.mOnlyChromeDispatch = true;
+  }
+  bool dummy;
+  mTarget->DispatchEvent(event, &dummy);
+  return NS_OK;
+}
+
+nsresult
+AsyncEventDispatcher::Cancel()
+{
+  mCanceled = true;
+  return NS_OK;
+}
+
+nsresult
+AsyncEventDispatcher::PostDOMEvent()
+{
+  RefPtr<AsyncEventDispatcher> ensureDeletionWhenFailing = this;
+  return NS_DispatchToCurrentThread(this);
+}
+
+void
+AsyncEventDispatcher::RunDOMEventWhenSafe()
+{
+  RefPtr<AsyncEventDispatcher> ensureDeletionWhenFailing = this;
+  nsContentUtils::AddScriptRunner(this);
+}
+
+/******************************************************************************
+ * mozilla::LoadBlockingAsyncEventDispatcher
+ ******************************************************************************/
+
+LoadBlockingAsyncEventDispatcher::~LoadBlockingAsyncEventDispatcher()
+{
+  if (mBlockedDoc) {
+    mBlockedDoc->UnblockOnload(true);
+  }
+}
+
+} // namespace mozilla