Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream

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

1 files changed, 53 insertions, 0 deletions

diff --git a/dom/base/AnimationFrameProvider.cpp b/dom/base/AnimationFrameProvider.cpp
new file mode 100644
index 0000000000..ba2ee8849b
--- /dev/null
+++ b/dom/base/AnimationFrameProvider.cpp
@@ -0,0 +1,53 @@
+/* -*- 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/dom/AnimationFrameProvider.h"
+#include "nsThreadUtils.h"
+
+namespace mozilla::dom {
+
+FrameRequest::FrameRequest(FrameRequestCallback& aCallback, int32_t aHandle)
+    : mCallback(&aCallback), mHandle(aHandle) {
+  LogFrameRequestCallback::LogDispatch(mCallback);
+}
+
+FrameRequest::~FrameRequest() = default;
+
+nsresult FrameRequestManager::Schedule(FrameRequestCallback& aCallback,
+                                       int32_t* aHandle) {
+  if (mCallbackCounter == INT32_MAX) {
+    // Can't increment without overflowing; bail out
+    return NS_ERROR_NOT_AVAILABLE;
+  }
+  int32_t newHandle = ++mCallbackCounter;
+
+  mCallbacks.AppendElement(FrameRequest(aCallback, newHandle));
+
+  *aHandle = newHandle;
+  return NS_OK;
+}
+
+bool FrameRequestManager::Cancel(int32_t aHandle) {
+  // mCallbacks is stored sorted by handle
+  if (mCallbacks.RemoveElementSorted(aHandle)) {
+    return true;
+  }
+
+  Unused << mCanceledCallbacks.put(aHandle);
+  return false;
+}
+
+void FrameRequestManager::Unlink() { mCallbacks.Clear(); }
+
+void FrameRequestManager::Traverse(nsCycleCollectionTraversalCallback& aCB) {
+  for (auto& i : mCallbacks) {
+    NS_CYCLE_COLLECTION_NOTE_EDGE_NAME(aCB,
+                                       "FrameRequestManager::mCallbacks[i]");
+    aCB.NoteXPCOMChild(i.mCallback);
+  }
+}
+
+}  // namespace mozilla::dom