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// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_INPUT_ANDROID_INPUT_HELPER_H_
#define COMPONENTS_INPUT_ANDROID_INPUT_HELPER_H_
#include "components/input/render_widget_host_view_input.h"
#include "ui/events/android/motion_event_android.h"
#include "ui/events/gesture_detection/filtered_gesture_provider.h"
namespace input {
// Helper class to share code between RenderWidgetHostViewAndroid (in Browser)
// and RenderInputRouterSupportAndroid (in Viz).
class COMPONENT_EXPORT(INPUT) AndroidInputHelper {
public:
class Delegate {
public:
virtual ~Delegate() = default;
virtual void SendGestureEvent(const blink::WebGestureEvent& event) = 0;
virtual ui::FilteredGestureProvider& GetGestureProvider() = 0;
};
explicit AndroidInputHelper(RenderWidgetHostViewInput* view,
Delegate* delegate);
AndroidInputHelper(const AndroidInputHelper&) = delete;
AndroidInputHelper& operator=(const AndroidInputHelper&) = delete;
~AndroidInputHelper();
void RouteOrForwardTouchEvent(blink::WebTouchEvent& web_event);
void RouteOrForwardGestureEvent(const blink::WebGestureEvent& event);
bool ShouldRouteEvents() const;
void ResetGestureDetection();
void OnGestureEvent(const ui::GestureEventData& gesture);
bool RequiresDoubleTapGestureEvents() const;
void ProcessAckedTouchEvent(const input::TouchEventWithLatencyInfo& touch,
blink::mojom::InputEventResultState ack_result);
bool TransformPointToCoordSpaceForView(
const gfx::PointF& point,
input::RenderWidgetHostViewInput* target_view,
gfx::PointF* transformed_point);
void RecordToolTypeForActionDown(const ui::MotionEventAndroid& event);
void ComputeEventLatencyOSTouchHistograms(
const ui::MotionEvent& event,
const base::TimeTicks& processing_time);
private:
// |view_| is supposed to outlive |this|.
raw_ref<RenderWidgetHostViewInput> view_;
// |delegate_| is supposed to outlive |this|.
raw_ref<Delegate> delegate_;
};
} // namespace input
#endif // COMPONENTS_INPUT_ANDROID_INPUT_HELPER_H_
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