1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
3 /* This Source Code Form is subject to the terms of the Mozilla Public
4 * License, v. 2.0. If a copy of the MPL was not distributed with this
5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
7 #include "mozilla/dom/AnimationFrameProvider.h"
8 #include "nsThreadUtils.h"
10 namespace mozilla::dom
{
12 FrameRequest::FrameRequest(FrameRequestCallback
& aCallback
, int32_t aHandle
)
13 : mCallback(&aCallback
), mHandle(aHandle
) {
14 LogFrameRequestCallback::LogDispatch(mCallback
);
17 FrameRequest::~FrameRequest() = default;
19 nsresult
FrameRequestManager::Schedule(FrameRequestCallback
& aCallback
,
21 if (mCallbackCounter
== INT32_MAX
) {
22 // Can't increment without overflowing; bail out
23 return NS_ERROR_NOT_AVAILABLE
;
25 int32_t newHandle
= ++mCallbackCounter
;
27 mCallbacks
.AppendElement(FrameRequest(aCallback
, newHandle
));
33 bool FrameRequestManager::Cancel(int32_t aHandle
) {
34 // mCallbacks is stored sorted by handle
35 if (mCallbacks
.RemoveElementSorted(aHandle
)) {
39 Unused
<< mCanceledCallbacks
.put(aHandle
);
43 void FrameRequestManager::Unlink() { mCallbacks
.Clear(); }
45 void FrameRequestManager::Traverse(nsCycleCollectionTraversalCallback
& aCB
) {
46 for (auto& i
: mCallbacks
) {
47 NS_CYCLE_COLLECTION_NOTE_EDGE_NAME(aCB
,
48 "FrameRequestManager::mCallbacks[i]");
49 aCB
.NoteXPCOMChild(i
.mCallback
);
53 } // namespace mozilla::dom