flutter_flutter/shell/platform/android/vsync_waiter_android.h
Ryan Macnak ffbefaf477 Initial implementation of idle notification. (#4012)
- Assumes only the Dart VM is interested in idle notification.
 - Gives the VM the time remaining in each frame.
 - Gives the VM 100ms if there is no pending frame.

Issue flutter/flutter#9594
2017-09-01 11:11:25 -07:00

39 lines
977 B
C++

// Copyright 2016 The Chromium 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 SHELL_PLATFORM_ANDROID_VSYNC_WAITER_ANDROID_H_
#define SHELL_PLATFORM_ANDROID_VSYNC_WAITER_ANDROID_H_
#include <jni.h>
#include "flutter/shell/common/vsync_waiter.h"
#include "lib/ftl/macros.h"
#include "lib/ftl/memory/weak_ptr.h"
namespace shell {
class VsyncWaiterAndroid : public VsyncWaiter {
public:
VsyncWaiterAndroid();
~VsyncWaiterAndroid() override;
static bool Register(JNIEnv* env);
void AsyncWaitForVsync(Callback callback) override;
void OnVsync(int64_t frameTimeNanos, int64_t frameTargetTimeNanos);
private:
Callback callback_;
ftl::WeakPtr<VsyncWaiterAndroid> self_;
ftl::WeakPtrFactory<VsyncWaiterAndroid> weak_factory_;
FTL_DISALLOW_COPY_AND_ASSIGN(VsyncWaiterAndroid);
};
} // namespace shell
#endif // SHELL_PLATFORM_ANDROID_ASYNC_WAITER_ANDROID_H_