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/* -*- 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
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