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| 1 // Copyright 2012 The Chromium Authors. All rights reserved. | 1 // Copyright 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 CCScrollbarAnimationController_h | 5 #ifndef CCScrollbarAnimationController_h |
| 6 #define CCScrollbarAnimationController_h | 6 #define CCScrollbarAnimationController_h |
| 7 | 7 |
| 8 #include "base/memory/scoped_ptr.h" | 8 #include "base/memory/scoped_ptr.h" |
| 9 #include "FloatPoint.h" | 9 #include "FloatPoint.h" |
| 10 #include "IntSize.h" | 10 #include "IntSize.h" |
| 11 | 11 |
| 12 namespace cc { | 12 namespace cc { |
| 13 | 13 |
| 14 class CCLayerImpl; | 14 class LayerImpl; |
| 15 class CCScrollbarLayerImpl; | 15 class ScrollbarLayerImpl; |
| 16 | 16 |
| 17 // This abstract class represents the compositor-side analogy of ScrollbarAnimat
or. | 17 // This abstract class represents the compositor-side analogy of ScrollbarAnimat
or. |
| 18 // Individual platforms should subclass it to provide specialized implementation
. | 18 // Individual platforms should subclass it to provide specialized implementation
. |
| 19 class CCScrollbarAnimationController { | 19 class ScrollbarAnimationController { |
| 20 public: | 20 public: |
| 21 static scoped_ptr<CCScrollbarAnimationController> create(CCLayerImpl* scroll
Layer); | 21 static scoped_ptr<ScrollbarAnimationController> create(LayerImpl* scrollLaye
r); |
| 22 | 22 |
| 23 virtual ~CCScrollbarAnimationController(); | 23 virtual ~ScrollbarAnimationController(); |
| 24 | 24 |
| 25 virtual bool animate(double monotonicTime); | 25 virtual bool animate(double monotonicTime); |
| 26 void didPinchGestureBegin(); | 26 void didPinchGestureBegin(); |
| 27 void didPinchGestureUpdate(); | 27 void didPinchGestureUpdate(); |
| 28 void didPinchGestureEnd(); | 28 void didPinchGestureEnd(); |
| 29 void updateScrollOffset(CCLayerImpl* scrollLayer); | 29 void updateScrollOffset(LayerImpl* scrollLayer); |
| 30 | 30 |
| 31 void setHorizontalScrollbarLayer(CCScrollbarLayerImpl* layer) { m_horizontal
ScrollbarLayer = layer; } | 31 void setHorizontalScrollbarLayer(ScrollbarLayerImpl* layer) { m_horizontalSc
rollbarLayer = layer; } |
| 32 CCScrollbarLayerImpl* horizontalScrollbarLayer() const { return m_horizontal
ScrollbarLayer; } | 32 ScrollbarLayerImpl* horizontalScrollbarLayer() const { return m_horizontalSc
rollbarLayer; } |
| 33 | 33 |
| 34 void setVerticalScrollbarLayer(CCScrollbarLayerImpl* layer) { m_verticalScro
llbarLayer = layer; } | 34 void setVerticalScrollbarLayer(ScrollbarLayerImpl* layer) { m_verticalScroll
barLayer = layer; } |
| 35 CCScrollbarLayerImpl* verticalScrollbarLayer() const { return m_verticalScro
llbarLayer; } | 35 ScrollbarLayerImpl* verticalScrollbarLayer() const { return m_verticalScroll
barLayer; } |
| 36 | 36 |
| 37 FloatPoint currentPos() const { return m_currentPos; } | 37 FloatPoint currentPos() const { return m_currentPos; } |
| 38 IntSize totalSize() const { return m_totalSize; } | 38 IntSize totalSize() const { return m_totalSize; } |
| 39 IntSize maximum() const { return m_maximum; } | 39 IntSize maximum() const { return m_maximum; } |
| 40 | 40 |
| 41 virtual void didPinchGestureBeginAtTime(double monotonicTime) { } | 41 virtual void didPinchGestureBeginAtTime(double monotonicTime) { } |
| 42 virtual void didPinchGestureUpdateAtTime(double monotonicTime) { } | 42 virtual void didPinchGestureUpdateAtTime(double monotonicTime) { } |
| 43 virtual void didPinchGestureEndAtTime(double monotonicTime) { } | 43 virtual void didPinchGestureEndAtTime(double monotonicTime) { } |
| 44 virtual void updateScrollOffsetAtTime(CCLayerImpl* scrollLayer, double monot
onicTime); | 44 virtual void updateScrollOffsetAtTime(LayerImpl* scrollLayer, double monoton
icTime); |
| 45 | 45 |
| 46 protected: | 46 protected: |
| 47 explicit CCScrollbarAnimationController(CCLayerImpl* scrollLayer); | 47 explicit ScrollbarAnimationController(LayerImpl* scrollLayer); |
| 48 | 48 |
| 49 private: | 49 private: |
| 50 static IntSize getScrollLayerBounds(const CCLayerImpl*); | 50 static IntSize getScrollLayerBounds(const LayerImpl*); |
| 51 | 51 |
| 52 // Beware of dangling pointer. Always update these during tree synchronizati
on. | 52 // Beware of dangling pointer. Always update these during tree synchronizati
on. |
| 53 CCScrollbarLayerImpl* m_horizontalScrollbarLayer; | 53 ScrollbarLayerImpl* m_horizontalScrollbarLayer; |
| 54 CCScrollbarLayerImpl* m_verticalScrollbarLayer; | 54 ScrollbarLayerImpl* m_verticalScrollbarLayer; |
| 55 | 55 |
| 56 FloatPoint m_currentPos; | 56 FloatPoint m_currentPos; |
| 57 IntSize m_totalSize; | 57 IntSize m_totalSize; |
| 58 IntSize m_maximum; | 58 IntSize m_maximum; |
| 59 }; | 59 }; |
| 60 | 60 |
| 61 } // namespace cc | 61 } // namespace cc |
| 62 | 62 |
| 63 #endif // CCScrollbarAnimationController_h | 63 #endif // CCScrollbarAnimationController_h |
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