| // 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_MOVE_GESTURE_H_ |
| #define CONTENT_BROWSER_RENDERER_HOST_INPUT_SYNTHETIC_SMOOTH_MOVE_GESTURE_H_ |
| |
| #include <vector> |
| |
| #include "base/macros.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/browser/renderer_host/input/synthetic_pointer_driver.h" |
| #include "content/common/content_export.h" |
| #include "content/common/input/synthetic_smooth_drag_gesture_params.h" |
| #include "content/common/input/synthetic_smooth_scroll_gesture_params.h" |
| #include "third_party/blink/public/common/input/web_input_event.h" |
| #include "third_party/blink/public/common/input/web_mouse_wheel_event.h" |
| #include "ui/events/types/scroll_types.h" |
| #include "ui/gfx/geometry/vector2d.h" |
| #include "ui/gfx/geometry/vector2d_f.h" |
| |
| namespace content { |
| |
| class CONTENT_EXPORT SyntheticSmoothMoveGestureParams { |
| public: |
| SyntheticSmoothMoveGestureParams(); |
| SyntheticSmoothMoveGestureParams( |
| const SyntheticSmoothMoveGestureParams& other); |
| ~SyntheticSmoothMoveGestureParams(); |
| |
| enum InputType { MOUSE_DRAG_INPUT, MOUSE_WHEEL_INPUT, TOUCH_INPUT }; |
| |
| InputType input_type; |
| gfx::PointF start_point; |
| std::vector<gfx::Vector2dF> distances; |
| int speed_in_pixels_s = SyntheticGestureParams::kDefaultSpeedInPixelsPerSec; |
| int fling_velocity_x = 0; |
| int fling_velocity_y = 0; |
| bool prevent_fling = true; |
| bool add_slop = true; |
| ui::ScrollGranularity granularity = ui::ScrollGranularity::kScrollByPixel; |
| // A bitfield of values from blink::WebInputEvent::Modifiers. |
| int modifiers = 0; |
| bool from_devtools_debugger = false; |
| }; |
| |
| // This class is used as helper class for simulation of scroll and drag. |
| // Simulates scrolling/dragging given a sequence of distances as a continuous |
| // gestures (i.e. when synthesizing touch or mouse drag events, the pointer is |
| // not lifted when changing scroll direction). |
| // If no distance is provided or the first one is 0, no touch events are |
| // generated. |
| // When synthesizing touch events for scrolling, the first distance is extended |
| // to compensate for the touch slop. |
| class CONTENT_EXPORT SyntheticSmoothMoveGesture : public SyntheticGesture { |
| public: |
| explicit SyntheticSmoothMoveGesture(SyntheticSmoothMoveGestureParams params); |
| |
| SyntheticSmoothMoveGesture(const SyntheticSmoothMoveGesture&) = delete; |
| SyntheticSmoothMoveGesture& operator=(const SyntheticSmoothMoveGesture&) = |
| delete; |
| |
| ~SyntheticSmoothMoveGesture() override; |
| |
| // SyntheticGesture implementation: |
| SyntheticGesture::Result ForwardInputEvents( |
| const base::TimeTicks& timestamp, |
| SyntheticGestureTarget* target) override; |
| |
| private: |
| enum GestureState { |
| SETUP, |
| STARTED, |
| MOVING, |
| STOPPING, |
| DONE |
| }; |
| |
| void ForwardTouchInputEvents( |
| const base::TimeTicks& timestamp, SyntheticGestureTarget* target); |
| void ForwardMouseWheelInputEvents( |
| const base::TimeTicks& timestamp, SyntheticGestureTarget* target); |
| void ForwardMouseClickInputEvents( |
| const base::TimeTicks& timestamp, SyntheticGestureTarget* target); |
| |
| void ForwardMouseWheelEvent(SyntheticGestureTarget* target, |
| const gfx::Vector2dF& delta, |
| const blink::WebMouseWheelEvent::Phase phase, |
| const base::TimeTicks& timestamp, |
| int modifiers) const; |
| |
| void ForwardFlingGestureEvent(SyntheticGestureTarget* target, |
| const blink::WebInputEvent::Type type) const; |
| |
| void PressPoint(SyntheticGestureTarget* target, |
| const base::TimeTicks& timestamp); |
| void MovePoint(SyntheticGestureTarget* target, |
| const gfx::Vector2dF& delta, |
| const base::TimeTicks& timestamp); |
| void ReleasePoint(SyntheticGestureTarget* target, |
| const base::TimeTicks& timestamp); |
| |
| void AddTouchSlopToFirstDistance(SyntheticGestureTarget* target); |
| gfx::Vector2dF GetPositionDeltaAtTime(const base::TimeTicks& timestamp) const; |
| void ComputeNextMoveSegment(); |
| base::TimeTicks ClampTimestamp(const base::TimeTicks& timestamp) const; |
| bool FinishedCurrentMoveSegment(const base::TimeTicks& timestamp) const; |
| bool IsLastMoveSegment() const; |
| bool MoveIsNoOp() const; |
| |
| SyntheticSmoothMoveGestureParams params_; |
| std::unique_ptr<SyntheticPointerDriver> synthetic_pointer_driver_; |
| // Used for mouse input. |
| gfx::Vector2dF current_move_segment_total_delta_; |
| // Used for touch input. |
| gfx::PointF current_move_segment_start_position_; |
| GestureState state_ = SETUP; |
| int current_move_segment_; |
| base::TimeTicks current_move_segment_start_time_; |
| base::TimeTicks current_move_segment_stop_time_; |
| // Used to set phase information for synthetic wheel events. |
| bool needs_scroll_begin_ = true; |
| }; |
| |
| } // namespace content |
| |
| #endif // CONTENT_BROWSER_RENDERER_HOST_INPUT_SYNTHETIC_SMOOTH_MOVE_GESTURE_H_ |