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| 1 // Copyright 2016 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 #ifndef ASH_COMMON_SYSTEM_CHROMEOS_PALETTE_TOOLS_LASER_POINTER_MODE_H_ |
| 6 #define ASH_COMMON_SYSTEM_CHROMEOS_PALETTE_TOOLS_LASER_POINTER_MODE_H_ |
| 7 |
| 8 #include "ash/ash_export.h" |
| 9 #include "ash/common/system/chromeos/palette/common_palette_tool.h" |
| 10 #include "ui/views/pointer_watcher.h" |
| 11 |
| 12 namespace ash { |
| 13 |
| 14 class LaserPointerView; |
| 15 |
| 16 // Controller for the laser pointer functionality. Enables/disables laser |
| 17 // pointer as well as receives points and passes them off to be rendered. |
| 18 class ASH_EXPORT LaserPointerMode : public CommonPaletteTool, |
| 19 public views::PointerWatcher { |
| 20 public: |
| 21 explicit LaserPointerMode(Delegate* delegate); |
| 22 ~LaserPointerMode() override; |
| 23 |
| 24 private: |
| 25 friend class LaserPointerModeTestApi; |
| 26 |
| 27 // PaletteTool: |
| 28 PaletteGroup GetGroup() const override; |
| 29 PaletteToolId GetToolId() const override; |
| 30 void OnEnable() override; |
| 31 void OnDisable() override; |
| 32 gfx::VectorIconId GetActiveTrayIcon() override; |
| 33 views::View* CreateView() override; |
| 34 |
| 35 // CommonPaletteTool: |
| 36 gfx::VectorIconId GetPaletteIconId() override; |
| 37 |
| 38 // views::PointerWatcher: |
| 39 void OnPointerEventObserved(const ui::PointerEvent& event, |
| 40 const gfx::Point& location_in_screen, |
| 41 views::Widget* target) override; |
| 42 |
| 43 void StopTimer(); |
| 44 |
| 45 // Timer callback which adds a point where the mouse was last seen. This |
| 46 // allows the trail to fade away when the mouse is stationary. |
| 47 void AddStationaryPoint(); |
| 48 |
| 49 // Timer which will add a new stationary point when the mouse stops moving. |
| 50 // This will remove points that are too old. |
| 51 std::unique_ptr<base::Timer> timer_; |
| 52 int timer_repeat_count_ = 0; |
| 53 |
| 54 gfx::Point current_mouse_location_; |
| 55 std::unique_ptr<LaserPointerView> laser_pointer_view_; |
| 56 |
| 57 DISALLOW_COPY_AND_ASSIGN(LaserPointerMode); |
| 58 }; |
| 59 |
| 60 } // namespace ash |
| 61 |
| 62 #endif // ASH_COMMON_SYSTEM_CHROMEOS_PALETTE_TOOLS_LASER_POINTER_MODE_H_ |
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