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| 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #ifndef UI_VIEWS_CONTROLS_GLOW_HOVER_CONTROLLER_H_ | 5 #ifndef UI_VIEWS_CONTROLS_GLOW_HOVER_CONTROLLER_H_ |
| 6 #define UI_VIEWS_CONTROLS_GLOW_HOVER_CONTROLLER_H_ | 6 #define UI_VIEWS_CONTROLS_GLOW_HOVER_CONTROLLER_H_ |
| 7 | 7 |
| 8 #include "ui/base/animation/animation_delegate.h" | 8 #include "ui/gfx/animation/animation_delegate.h" |
| 9 #include "ui/base/animation/slide_animation.h" | 9 #include "ui/gfx/animation/slide_animation.h" |
| 10 #include "ui/views/views_export.h" | 10 #include "ui/views/views_export.h" |
| 11 | 11 |
| 12 namespace gfx { | 12 namespace gfx { |
| 13 class Canvas; | 13 class Canvas; |
| 14 class ImageSkia; | 14 class ImageSkia; |
| 15 class Point; | 15 class Point; |
| 16 } | 16 } |
| 17 | 17 |
| 18 namespace views { | 18 namespace views { |
| 19 | 19 |
| 20 class View; | 20 class View; |
| 21 | 21 |
| 22 // GlowHoverController is responsible for drawing a hover effect as is used by | 22 // GlowHoverController is responsible for drawing a hover effect as is used by |
| 23 // the tabstrip. Typical usage: | 23 // the tabstrip. Typical usage: |
| 24 // OnMouseEntered() -> invoke Show(). | 24 // OnMouseEntered() -> invoke Show(). |
| 25 // OnMouseMoved() -> invoke SetLocation(). | 25 // OnMouseMoved() -> invoke SetLocation(). |
| 26 // OnMouseExited() -> invoke Hide(). | 26 // OnMouseExited() -> invoke Hide(). |
| 27 // OnPaint() -> if ShouldDraw() returns true invoke Draw(). | 27 // OnPaint() -> if ShouldDraw() returns true invoke Draw(). |
| 28 // Internally GlowHoverController uses an animation to animate the glow and | 28 // Internally GlowHoverController uses an animation to animate the glow and |
| 29 // invokes SchedulePaint() back on the View as necessary. | 29 // invokes SchedulePaint() back on the View as necessary. |
| 30 class VIEWS_EXPORT GlowHoverController : public ui::AnimationDelegate { | 30 class VIEWS_EXPORT GlowHoverController : public gfx::AnimationDelegate { |
| 31 public: | 31 public: |
| 32 enum Style { | 32 enum Style { |
| 33 SUBTLE, | 33 SUBTLE, |
| 34 PRONOUNCED | 34 PRONOUNCED |
| 35 }; | 35 }; |
| 36 | 36 |
| 37 explicit GlowHoverController(views::View* view); | 37 explicit GlowHoverController(views::View* view); |
| 38 virtual ~GlowHoverController(); | 38 virtual ~GlowHoverController(); |
| 39 | 39 |
| 40 // Sets the AnimationContainer used by the animation. | 40 // Sets the AnimationContainer used by the animation. |
| 41 void SetAnimationContainer(ui::AnimationContainer* container); | 41 void SetAnimationContainer(gfx::AnimationContainer* container); |
| 42 | 42 |
| 43 // Sets the location of the hover, relative to the View passed to the | 43 // Sets the location of the hover, relative to the View passed to the |
| 44 // constructor. | 44 // constructor. |
| 45 void SetLocation(const gfx::Point& location); | 45 void SetLocation(const gfx::Point& location); |
| 46 | 46 |
| 47 // Initiates showing the hover. | 47 // Initiates showing the hover. |
| 48 void Show(Style style); | 48 void Show(Style style); |
| 49 | 49 |
| 50 // Hides the hover. | 50 // Hides the hover. |
| 51 void Hide(); | 51 void Hide(); |
| 52 | 52 |
| 53 // Hides the hover immediately. | 53 // Hides the hover immediately. |
| 54 void HideImmediately(); | 54 void HideImmediately(); |
| 55 | 55 |
| 56 // Returns the value of the animation. | 56 // Returns the value of the animation. |
| 57 double GetAnimationValue() const; | 57 double GetAnimationValue() const; |
| 58 | 58 |
| 59 // Returns true if there is something to be drawn. Use this instead of | 59 // Returns true if there is something to be drawn. Use this instead of |
| 60 // invoking Draw() if creating |mask_image| is expensive. | 60 // invoking Draw() if creating |mask_image| is expensive. |
| 61 bool ShouldDraw() const; | 61 bool ShouldDraw() const; |
| 62 | 62 |
| 63 // If the hover is currently visible it is drawn to the supplied canvas. | 63 // If the hover is currently visible it is drawn to the supplied canvas. |
| 64 // |mask_image| is used to determine what parts of the canvas to draw on. | 64 // |mask_image| is used to determine what parts of the canvas to draw on. |
| 65 void Draw(gfx::Canvas* canvas, const gfx::ImageSkia& mask_image) const; | 65 void Draw(gfx::Canvas* canvas, const gfx::ImageSkia& mask_image) const; |
| 66 | 66 |
| 67 // ui::AnimationDelegate overrides: | 67 // gfx::AnimationDelegate overrides: |
| 68 virtual void AnimationEnded(const ui::Animation* animation) OVERRIDE; | 68 virtual void AnimationEnded(const gfx::Animation* animation) OVERRIDE; |
| 69 virtual void AnimationProgressed(const ui::Animation* animation) OVERRIDE; | 69 virtual void AnimationProgressed(const gfx::Animation* animation) OVERRIDE; |
| 70 | 70 |
| 71 private: | 71 private: |
| 72 // View we're drawing to. | 72 // View we're drawing to. |
| 73 views::View* view_; | 73 views::View* view_; |
| 74 | 74 |
| 75 // Opacity of the glow ramps up over time. | 75 // Opacity of the glow ramps up over time. |
| 76 ui::SlideAnimation animation_; | 76 gfx::SlideAnimation animation_; |
| 77 | 77 |
| 78 // Location of the glow, relative to view. | 78 // Location of the glow, relative to view. |
| 79 gfx::Point location_; | 79 gfx::Point location_; |
| 80 double opacity_scale_; | 80 double opacity_scale_; |
| 81 | 81 |
| 82 DISALLOW_COPY_AND_ASSIGN(GlowHoverController); | 82 DISALLOW_COPY_AND_ASSIGN(GlowHoverController); |
| 83 }; | 83 }; |
| 84 | 84 |
| 85 } // namespace views | 85 } // namespace views |
| 86 | 86 |
| 87 #endif // UI_VIEWS_CONTROLS_GLOW_HOVER_CONTROLLER_H_ | 87 #endif // UI_VIEWS_CONTROLS_GLOW_HOVER_CONTROLLER_H_ |
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