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// Copyright 2017 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef UI_EVENTS_ANDROID_GESTURE_EVENT_ANDROID_H_
#define UI_EVENTS_ANDROID_GESTURE_EVENT_ANDROID_H_
#include <memory>
#include "ui/events/events_export.h"
#include "ui/gfx/geometry/point_f.h"
namespace ui {
// Event class used to carry the info that match the blink::WebGestureEvent.
// This was devised because we can't use the blink type in ViewAndroid tree
// since hit testing requires templated things to modify these events.
// All coordinates are in DIPs.
class EVENTS_EXPORT GestureEventAndroid {
public:
GestureEventAndroid(int type,
const gfx::PointF& location,
const gfx::PointF& screen_location,
long time_ms,
float scale,
float delta_x,
float delta_y,
float velocity_x,
float velocity_y,
bool target_viewport,
bool synthetic_scroll,
bool prevent_boosting);
GestureEventAndroid(const GestureEventAndroid&) = delete;
GestureEventAndroid& operator=(const GestureEventAndroid&) = delete;
~GestureEventAndroid();
int type() const { return type_; }
const gfx::PointF& location() const { return location_; }
const gfx::PointF& screen_location() const { return screen_location_; }
long time() const { return time_ms_; }
float scale() const { return scale_; }
float delta_x() const { return delta_x_; }
float delta_y() const { return delta_y_; }
float velocity_x() const { return velocity_x_; }
float velocity_y() const { return velocity_y_; }
bool target_viewport() const { return target_viewport_; }
bool synthetic_scroll() const { return synthetic_scroll_; }
bool prevent_boosting() const { return prevent_boosting_; }
// Creates a new GestureEventAndroid instance different from |this| only by
// its location.
std::unique_ptr<GestureEventAndroid> CreateFor(
const gfx::PointF& new_location) const;
private:
int type_;
gfx::PointF location_;
gfx::PointF screen_location_;
long time_ms_;
float scale_;
float delta_x_;
float delta_y_;
float velocity_x_;
float velocity_y_;
bool target_viewport_;
bool synthetic_scroll_;
// Used by fling cancel. If true, this gesture will never attempt to boost an
// existing fling. It will immediately cancel an existing fling.
bool prevent_boosting_;
};
} // namespace ui
#endif // UI_EVENTS_ANDROID_GESTURE_EVENT_ANDROID_H_
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