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1 /* | 1 /* |
2 * Copyright (C) 2008, 2011 Apple Inc. All Rights Reserved. | 2 * Copyright (C) 2008, 2011 Apple Inc. All Rights Reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions | 5 * modification, are permitted provided that the following conditions |
6 * are met: | 6 * are met: |
7 * 1. Redistributions of source code must retain the above copyright | 7 * 1. Redistributions of source code must retain the above copyright |
8 * notice, this list of conditions and the following disclaimer. | 8 * notice, this list of conditions and the following disclaimer. |
9 * 2. Redistributions in binary form must reproduce the above copyright | 9 * 2. Redistributions in binary form must reproduce the above copyright |
10 * notice, this list of conditions and the following disclaimer in the | 10 * notice, this list of conditions and the following disclaimer in the |
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204 virtual bool scrollAnimatorEnabled() const { return false; } | 204 virtual bool scrollAnimatorEnabled() const { return false; } |
205 | 205 |
206 // NOTE: Only called from Internals for testing. | 206 // NOTE: Only called from Internals for testing. |
207 void setScrollOffsetFromInternals(const IntPoint&); | 207 void setScrollOffsetFromInternals(const IntPoint&); |
208 | 208 |
209 IntPoint clampScrollPosition(const IntPoint&) const; | 209 IntPoint clampScrollPosition(const IntPoint&) const; |
210 DoublePoint clampScrollPosition(const DoublePoint&) const; | 210 DoublePoint clampScrollPosition(const DoublePoint&) const; |
211 | 211 |
212 // Let subclasses provide a way of asking for and servicing scroll | 212 // Let subclasses provide a way of asking for and servicing scroll |
213 // animations. | 213 // animations. |
214 bool scheduleAnimation(); | 214 virtual bool scheduleAnimation(); |
215 virtual void serviceScrollAnimations(double monotonicTime); | 215 virtual void serviceScrollAnimations(double monotonicTime); |
216 virtual void updateCompositorScrollAnimations(); | 216 virtual void updateCompositorScrollAnimations(); |
217 virtual void registerForAnimation() { } | 217 virtual void registerForAnimation() { } |
218 virtual void deregisterForAnimation() { } | 218 virtual void deregisterForAnimation() { } |
219 | 219 |
220 void notifyCompositorAnimationFinished(int groupId); | 220 void notifyCompositorAnimationFinished(int groupId); |
221 | 221 |
222 virtual bool usesCompositedScrolling() const { return false; } | 222 virtual bool usesCompositedScrolling() const { return false; } |
223 | 223 |
224 // Returns true if the GraphicsLayer tree needs to be rebuilt. | 224 // Returns true if the GraphicsLayer tree needs to be rebuilt. |
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352 // vertical-lr / ltr NO NO | 352 // vertical-lr / ltr NO NO |
353 // vertical-lr / rtl NO YES | 353 // vertical-lr / rtl NO YES |
354 // vertical-rl / ltr YES NO | 354 // vertical-rl / ltr YES NO |
355 // vertical-rl / rtl YES YES | 355 // vertical-rl / rtl YES YES |
356 IntPoint m_scrollOrigin; | 356 IntPoint m_scrollOrigin; |
357 }; | 357 }; |
358 | 358 |
359 } // namespace blink | 359 } // namespace blink |
360 | 360 |
361 #endif // ScrollableArea_h | 361 #endif // ScrollableArea_h |
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