| // Copyright 2016 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 ASH_ACCESSIBILITY_AUTOCLICK_AUTOCLICK_RING_HANDLER_H_ |
| #define ASH_ACCESSIBILITY_AUTOCLICK_AUTOCLICK_RING_HANDLER_H_ |
| |
| #include "base/time/time.h" |
| #include "base/timer/timer.h" |
| #include "ui/gfx/animation/linear_animation.h" |
| #include "ui/gfx/geometry/point.h" |
| #include "ui/views/widget/widget.h" |
| |
| namespace ash { |
| |
| // AutoclickRingHandler displays an animated affordance that is shown |
| // on autoclick gesture. The animation is a semi-transparent ring which |
| // fills with white. |
| class AutoclickRingHandler : public gfx::LinearAnimation { |
| public: |
| AutoclickRingHandler(); |
| |
| AutoclickRingHandler(const AutoclickRingHandler&) = delete; |
| AutoclickRingHandler& operator=(const AutoclickRingHandler&) = delete; |
| |
| ~AutoclickRingHandler() override; |
| |
| void StartGesture(base::TimeDelta duration, |
| const gfx::Point& center_point_in_screen, |
| views::Widget* widget); |
| void StopGesture(); |
| void SetGestureCenter(const gfx::Point& center_point_in_screen, |
| views::Widget* widget); |
| |
| void SetSize(int radius); |
| |
| private: |
| class AutoclickRingView; |
| |
| // The default values of the autoclick ring widget size. |
| const int kAutoclickRingInnerRadius = 20; |
| |
| enum class AnimationType { |
| NONE, |
| GROW_ANIMATION, |
| }; |
| |
| void StartAnimation(base::TimeDelta duration); |
| void StopAutoclickRing(); |
| |
| // Overridden from gfx::LinearAnimation. |
| void AnimateToState(double state) override; |
| void AnimationStopped() override; |
| |
| AutoclickRingView* view_ = nullptr; |
| views::Widget* ring_widget_ = nullptr; |
| // Location of the simulated mouse event from auto click in screen |
| // coordinates. |
| gfx::Point tap_down_location_; |
| AnimationType current_animation_type_ = AnimationType::NONE; |
| base::TimeDelta animation_duration_; |
| int radius_ = kAutoclickRingInnerRadius; |
| }; |
| |
| } // namespace ash |
| |
| #endif // ASH_ACCESSIBILITY_AUTOCLICK_AUTOCLICK_RING_HANDLER_H_ |