| // 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_SMOOTH_SCROLL_GESTURE_H_ |
| #define CONTENT_BROWSER_RENDERER_HOST_INPUT_SYNTHETIC_SMOOTH_SCROLL_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_smooth_scroll_gesture_params.h" |
| #include "content/common/input/synthetic_web_input_event_builders.h" |
| #include "third_party/WebKit/public/web/WebInputEvent.h" |
| #include "ui/gfx/vector2d.h" |
| #include "ui/gfx/vector2d_f.h" |
| |
| namespace content { |
| |
| class CONTENT_EXPORT SyntheticSmoothScrollGesture : public SyntheticGesture { |
| public: |
| explicit SyntheticSmoothScrollGesture( |
| const SyntheticSmoothScrollGestureParams& params); |
| virtual ~SyntheticSmoothScrollGesture(); |
| |
| virtual SyntheticGesture::Result ForwardInputEvents( |
| const base::TimeDelta& interval, SyntheticGestureTarget* target) OVERRIDE; |
| |
| private: |
| enum GestureState { |
| SETUP, |
| STARTED, |
| MOVING, |
| STOPPING, |
| DONE |
| }; |
| |
| void ForwardTouchInputEvents( |
| const base::TimeDelta& interval, SyntheticGestureTarget* target); |
| void ForwardMouseInputEvents( |
| const base::TimeDelta& interval, SyntheticGestureTarget* target); |
| |
| void ForwardTouchEvent(SyntheticGestureTarget* target) const; |
| void ForwardMouseWheelEvent(SyntheticGestureTarget* target, |
| const gfx::Vector2dF& delta) const; |
| |
| void PressTouchPoint(SyntheticGestureTarget* target); |
| void MoveTouchPoint(SyntheticGestureTarget* target); |
| void ReleaseTouchPoint(SyntheticGestureTarget* target); |
| |
| void AddTouchSlopToDistance(SyntheticGestureTarget* target); |
| gfx::Vector2dF GetPositionDelta(const base::TimeDelta& interval) const; |
| gfx::Vector2dF ProjectLengthOntoScrollDirection(float delta_length) const; |
| gfx::Vector2dF ComputeRemainingDelta() const; |
| bool HasScrolledEntireDistance() const; |
| |
| SyntheticSmoothScrollGestureParams params_; |
| gfx::Vector2dF total_delta_; |
| gfx::Vector2d total_delta_discrete_; |
| SyntheticWebTouchEvent touch_event_; |
| SyntheticGestureParams::GestureSourceType gesture_source_type_; |
| GestureState state_; |
| base::TimeDelta total_stopping_wait_time_; |
| |
| DISALLOW_COPY_AND_ASSIGN(SyntheticSmoothScrollGesture); |
| }; |
| |
| } // namespace content |
| |
| #endif // CONTENT_BROWSER_RENDERER_HOST_INPUT_SYNTHETIC_SMOOTH_SCROLL_GESTURE_H_ |