| // Copyright 2013 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 CONTENT_BROWSER_RENDERER_HOST_INPUT_SYNTHETIC_PINCH_GESTURE_H_ |
| #define CONTENT_BROWSER_RENDERER_HOST_INPUT_SYNTHETIC_PINCH_GESTURE_H_ |
| |
| #include "base/time/time.h" |
| #include "content/browser/renderer_host/input/synthetic_gesture.h" |
| #include "content/browser/renderer_host/input/synthetic_gesture_target.h" |
| #include "content/common/content_export.h" |
| #include "content/common/input/synthetic_pinch_gesture_params.h" |
| #include "content/common/input/synthetic_web_input_event_builders.h" |
| #include "third_party/WebKit/public/web/WebInputEvent.h" |
| |
| namespace content { |
| |
| class CONTENT_EXPORT SyntheticPinchGesture : public SyntheticGesture { |
| public: |
| explicit SyntheticPinchGesture(const SyntheticPinchGestureParams& params); |
| virtual ~SyntheticPinchGesture(); |
| |
| virtual SyntheticGesture::Result ForwardInputEvents( |
| const base::TimeTicks& timestamp, |
| SyntheticGestureTarget* target) OVERRIDE; |
| |
| private: |
| enum GestureState { |
| SETUP, |
| STARTED, |
| MOVING, |
| DONE |
| }; |
| |
| void ForwardTouchInputEvents(const base::TimeTicks& timestamp, |
| SyntheticGestureTarget* target); |
| |
| void UpdateTouchPoints(const base::TimeTicks& timestamp); |
| void PressTouchPoints(SyntheticGestureTarget* target, |
| const base::TimeTicks& timestamp); |
| void MoveTouchPoints(SyntheticGestureTarget* target, float delta, |
| const base::TimeTicks& timestamp); |
| void ReleaseTouchPoints(SyntheticGestureTarget* target, |
| const base::TimeTicks& timestamp); |
| void ForwardTouchEvent(SyntheticGestureTarget* target, |
| const base::TimeTicks& timestamp); |
| |
| void SetupCoordinatesAndStopTime(SyntheticGestureTarget* target); |
| float GetDeltaForPointer0AtTime(const base::TimeTicks& timestamp) const; |
| base::TimeTicks ClampTimestamp(const base::TimeTicks& timestamp) const; |
| bool HasReachedTarget(const base::TimeTicks& timestamp) const; |
| |
| SyntheticPinchGestureParams params_; |
| float start_y_0_; |
| float start_y_1_; |
| float max_pointer_delta_0_; |
| SyntheticGestureParams::GestureSourceType gesture_source_type_; |
| GestureState state_; |
| SyntheticWebTouchEvent touch_event_; |
| base::TimeTicks start_time_; |
| base::TimeTicks stop_time_; |
| |
| private: |
| DISALLOW_COPY_AND_ASSIGN(SyntheticPinchGesture); |
| }; |
| |
| } // namespace content |
| |
| #endif // CONTENT_BROWSER_RENDERER_HOST_INPUT_SYNTHETIC_PINCH_GESTURE_H_ |