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// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CONTENT_BROWSER_RENDERER_HOST_INPUT_FLING_SCHEDULER_ANDROID_H_
#define CONTENT_BROWSER_RENDERER_HOST_INPUT_FLING_SCHEDULER_ANDROID_H_
#include "base/memory/raw_ptr.h"
#include "components/input/fling_scheduler_base.h"
#include "content/browser/renderer_host/compositor_impl_android.h"
#include "content/common/content_export.h"
#include "ui/android/view_android_observer.h"
#include "ui/android/window_android.h"
#include "ui/android/window_android_observer.h"
#include "ui/compositor/host_begin_frame_observer.h"
namespace content {
class RenderWidgetHostImpl;
class CONTENT_EXPORT FlingSchedulerAndroid
: public input::FlingSchedulerBase,
public ui::ViewAndroidObserver,
public ui::WindowAndroidObserver,
public ui::HostBeginFrameObserver::SimpleBeginFrameObserver {
public:
explicit FlingSchedulerAndroid(RenderWidgetHostImpl* host);
FlingSchedulerAndroid(const FlingSchedulerAndroid&) = delete;
FlingSchedulerAndroid& operator=(const FlingSchedulerAndroid&) = delete;
~FlingSchedulerAndroid() override;
// FlingControllerSchedulerClient
void ScheduleFlingProgress(
base::WeakPtr<input::FlingController> fling_controller) override;
void DidStopFlingingOnBrowser(
base::WeakPtr<input::FlingController> fling_controller) override;
bool NeedsBeginFrameForFlingProgress() override;
bool ShouldUseMobileFlingCurve() override;
gfx::Vector2dF GetPixelsPerInch(
const gfx::PointF& position_in_screen) override;
// FlingSchedulerBase
void ProgressFlingOnBeginFrameIfneeded(base::TimeTicks current_time) override;
protected:
raw_ptr<RenderWidgetHostImpl> host_;
base::WeakPtr<input::FlingController> fling_controller_;
private:
ui::WindowAndroid* GetRootWindow();
void RequestCompositorTick();
void RemoveCompositorTick();
// ui::WindowAndroidObserver implementation.
void OnRootWindowVisibilityChanged(bool visible) override {}
void OnAttachCompositor() override;
void OnDetachCompositor() override;
void OnAnimate(base::TimeTicks begin_frame_time) override {}
void OnActivityStopped() override {}
void OnActivityStarted() override {}
// ui::ViewAndroidObserver implementation:
void OnAttachedToWindow() override;
void OnDetachedFromWindow() override;
void OnViewAndroidDestroyed() override;
// ui::HostBeginFrameObserver::SimpleBeginFrameObserver implementation.
void OnBeginFrame(
base::TimeTicks frame_begin_time,
base::TimeDelta frame_interval,
std::optional<base::TimeTicks> first_coalesced_frame_begin_time) override;
void OnBeginFrameSourceShuttingDown() override;
raw_ptr<ui::ViewAndroid> observed_view_ = nullptr;
raw_ptr<ui::WindowAndroid> observed_window_ = nullptr;
raw_ptr<CompositorImpl> observed_compositor_ = nullptr;
};
} // namespace content
#endif // CONTENT_BROWSER_RENDERER_HOST_INPUT_FLING_SCHEDULER_ANDROID_H_
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