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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_H_
#define CONTENT_BROWSER_RENDERER_HOST_INPUT_FLING_SCHEDULER_H_
#include "base/memory/raw_ptr.h"
#include "components/input/fling_controller.h"
#include "components/input/fling_scheduler_base.h"
#include "content/common/content_export.h"
#include "ui/compositor/compositor_animation_observer.h"
namespace ui {
class Compositor;
}
namespace content {
class RenderWidgetHostImpl;
class CONTENT_EXPORT FlingScheduler : public input::FlingSchedulerBase,
private ui::CompositorAnimationObserver {
public:
FlingScheduler(RenderWidgetHostImpl* host);
FlingScheduler(const FlingScheduler&) = delete;
FlingScheduler& operator=(const FlingScheduler&) = delete;
~FlingScheduler() 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:
virtual ui::Compositor* GetCompositor();
raw_ptr<RenderWidgetHostImpl> host_;
base::WeakPtr<input::FlingController> fling_controller_;
raw_ptr<ui::Compositor> observed_compositor_ = nullptr;
private:
// ui::CompositorAnimationObserver
void OnAnimationStep(base::TimeTicks timestamp) override;
void OnCompositingShuttingDown(ui::Compositor* compositor) override;
};
} // namespace content
#endif // CONTENT_BROWSER_RENDERER_HOST_INPUT_FLING_SCHEDULER_H_
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