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// Copyright 2013 The Flutter Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef FLUTTER_SHELL_COMMON_VSYNC_WAITER_FALLBACK_H_
#define FLUTTER_SHELL_COMMON_VSYNC_WAITER_FALLBACK_H_
#include "flutter/fml/macros.h"
#include "flutter/fml/memory/weak_ptr.h"
#include "flutter/fml/time/time_point.h"
#include "flutter/shell/common/vsync_waiter.h"
namespace flutter {
/// A |VsyncWaiter| that will fire at 60 fps irrespective of the vsync.
class VsyncWaiterFallback final : public VsyncWaiter {
public:
explicit VsyncWaiterFallback(const TaskRunners& task_runners,
bool for_testing = false);
~VsyncWaiterFallback() override;
private:
fml::TimePoint phase_;
const bool for_testing_;
// |VsyncWaiter|
void AwaitVSync() override;
FML_DISALLOW_COPY_AND_ASSIGN(VsyncWaiterFallback);
};
} // namespace flutter
#endif // FLUTTER_SHELL_COMMON_VSYNC_WAITER_FALLBACK_H_