Adding upstream version 86.0.1.upstream/86.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 121 insertions, 0 deletions

diff --git a/dom/events/AsyncEventDispatcher.cpp b/dom/events/AsyncEventDispatcher.cpp
new file mode 100644
index 0000000000..2209d9bce4
--- /dev/null
+++ b/dom/events/AsyncEventDispatcher.cpp
@@ -0,0 +1,121 @@
+/* -*- 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"
+#include "mozilla/dom/EventTarget.h"
+#include "nsContentUtils.h"
+
+namespace mozilla {
+
+using namespace dom;
+
+/******************************************************************************
+ * mozilla::AsyncEventDispatcher
+ ******************************************************************************/
+
+AsyncEventDispatcher::AsyncEventDispatcher(EventTarget* aTarget,
+                                           WidgetEvent& aEvent)
+    : CancelableRunnable("AsyncEventDispatcher"),
+      mTarget(aTarget),
+      mEventMessage(eUnidentifiedEvent) {
+  MOZ_ASSERT(mTarget);
+  RefPtr<Event> event =
+      EventDispatcher::CreateEvent(aTarget, nullptr, &aEvent, u""_ns);
+  mEvent = std::move(event);
+  mEventType.SetIsVoid(true);
+  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;
+  }
+  nsCOMPtr<nsINode> node = do_QueryInterface(mTarget);
+  if (mCheckStillInDoc) {
+    MOZ_ASSERT(node);
+    if (!node->IsInComposedDoc()) {
+      return NS_OK;
+    }
+  }
+  mTarget->AsyncEventRunning(this);
+  if (mEventMessage != eUnidentifiedEvent) {
+    MOZ_ASSERT(mComposed == Composed::eDefault);
+    return nsContentUtils::DispatchTrustedEvent<WidgetEvent>(
+        node->OwnerDoc(), mTarget, mEventMessage, mCanBubble, Cancelable::eNo,
+        nullptr /* aDefaultAction */, mOnlyChromeDispatch);
+  }
+  RefPtr<Event> event = mEvent;
+  if (!event) {
+    event = NS_NewDOMEvent(mTarget, nullptr, nullptr);
+    event->InitEvent(mEventType, mCanBubble, Cancelable::eNo);
+    event->SetTrusted(true);
+  }
+  if (mComposed != Composed::eDefault) {
+    event->WidgetEventPtr()->mFlags.mComposed = mComposed == Composed::eYes;
+  }
+  if (mOnlyChromeDispatch == ChromeOnlyDispatch::eYes) {
+    MOZ_ASSERT(event->IsTrusted());
+    event->WidgetEventPtr()->mFlags.mOnlyChromeDispatch = true;
+  }
+  mTarget->DispatchEvent(*event);
+  return NS_OK;
+}
+
+nsresult AsyncEventDispatcher::Cancel() {
+  mCanceled = true;
+  return NS_OK;
+}
+
+nsresult AsyncEventDispatcher::PostDOMEvent() {
+  RefPtr<AsyncEventDispatcher> ensureDeletionWhenFailing = this;
+  if (NS_IsMainThread()) {
+    if (nsCOMPtr<nsIGlobalObject> global = mTarget->GetOwnerGlobal()) {
+      return global->Dispatch(TaskCategory::Other,
+                              ensureDeletionWhenFailing.forget());
+    }
+
+    // Sometimes GetOwnerGlobal returns null because it uses
+    // GetScriptHandlingObject rather than GetScopeObject.
+    if (nsCOMPtr<nsINode> node = do_QueryInterface(mTarget)) {
+      nsCOMPtr<Document> doc = node->OwnerDoc();
+      return doc->Dispatch(TaskCategory::Other,
+                           ensureDeletionWhenFailing.forget());
+    }
+  }
+  return NS_DispatchToCurrentThread(this);
+}
+
+void AsyncEventDispatcher::RunDOMEventWhenSafe() {
+  RefPtr<AsyncEventDispatcher> ensureDeletionWhenFailing = this;
+  nsContentUtils::AddScriptRunner(this);
+}
+
+void AsyncEventDispatcher::RequireNodeInDocument() {
+#ifdef DEBUG
+  nsCOMPtr<nsINode> node = do_QueryInterface(mTarget);
+  MOZ_ASSERT(node);
+#endif
+
+  mCheckStillInDoc = true;
+}
+
+/******************************************************************************
+ * mozilla::LoadBlockingAsyncEventDispatcher
+ ******************************************************************************/
+
+LoadBlockingAsyncEventDispatcher::~LoadBlockingAsyncEventDispatcher() {
+  if (mBlockedDoc) {
+    mBlockedDoc->UnblockOnload(true);
+  }
+}
+
+}  // namespace mozilla