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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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113 void contentAreaDidHide() const; | 113 void contentAreaDidHide() const; |
114 | 114 |
115 void finishCurrentScrollAnimations() const; | 115 void finishCurrentScrollAnimations() const; |
116 | 116 |
117 virtual void didAddScrollbar(Scrollbar&, ScrollbarOrientation); | 117 virtual void didAddScrollbar(Scrollbar&, ScrollbarOrientation); |
118 virtual void willRemoveScrollbar(Scrollbar&, ScrollbarOrientation); | 118 virtual void willRemoveScrollbar(Scrollbar&, ScrollbarOrientation); |
119 | 119 |
120 virtual void contentsResized(); | 120 virtual void contentsResized(); |
121 | 121 |
122 bool hasOverlayScrollbars() const; | 122 bool hasOverlayScrollbars() const; |
123 void setScrollbarOverlayStyle(ScrollbarOverlayStyle); | 123 void setScrollbarOverlayColorTheme(ScrollbarOverlayColorTheme); |
124 void recalculateScrollbarOverlayStyle(Color); | 124 void recalculateScrollbarOverlayColorTheme(Color); |
125 ScrollbarOverlayStyle getScrollbarOverlayStyle() const { | 125 ScrollbarOverlayColorTheme getScrollbarOverlayColorTheme() const { |
126 return static_cast<ScrollbarOverlayStyle>(m_scrollbarOverlayStyle); | 126 return static_cast<ScrollbarOverlayColorTheme>( |
| 127 m_scrollbarOverlayColorTheme); |
127 } | 128 } |
128 | 129 |
129 // This getter will create a ScrollAnimatorBase if it doesn't already exist. | 130 // This getter will create a ScrollAnimatorBase if it doesn't already exist. |
130 ScrollAnimatorBase& scrollAnimator() const; | 131 ScrollAnimatorBase& scrollAnimator() const; |
131 | 132 |
132 // This getter will return null if the ScrollAnimatorBase hasn't been created | 133 // This getter will return null if the ScrollAnimatorBase hasn't been created |
133 // yet. | 134 // yet. |
134 ScrollAnimatorBase* existingScrollAnimator() const { | 135 ScrollAnimatorBase* existingScrollAnimator() const { |
135 return m_scrollAnimator; | 136 return m_scrollAnimator; |
136 } | 137 } |
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383 virtual void updateScrollOffset(const ScrollOffset&, ScrollType) = 0; | 384 virtual void updateScrollOffset(const ScrollOffset&, ScrollType) = 0; |
384 | 385 |
385 virtual int lineStep(ScrollbarOrientation) const; | 386 virtual int lineStep(ScrollbarOrientation) const; |
386 virtual int pageStep(ScrollbarOrientation) const; | 387 virtual int pageStep(ScrollbarOrientation) const; |
387 virtual int documentStep(ScrollbarOrientation) const; | 388 virtual int documentStep(ScrollbarOrientation) const; |
388 virtual float pixelStep(ScrollbarOrientation) const; | 389 virtual float pixelStep(ScrollbarOrientation) const; |
389 | 390 |
390 mutable Member<ScrollAnimatorBase> m_scrollAnimator; | 391 mutable Member<ScrollAnimatorBase> m_scrollAnimator; |
391 mutable Member<ProgrammaticScrollAnimator> m_programmaticScrollAnimator; | 392 mutable Member<ProgrammaticScrollAnimator> m_programmaticScrollAnimator; |
392 | 393 |
393 unsigned m_scrollbarOverlayStyle : 2; // ScrollbarOverlayStyle | 394 unsigned m_scrollbarOverlayColorTheme : 2; |
394 | 395 |
395 unsigned m_scrollOriginChanged : 1; | 396 unsigned m_scrollOriginChanged : 1; |
396 | 397 |
397 unsigned m_horizontalScrollbarNeedsPaintInvalidation : 1; | 398 unsigned m_horizontalScrollbarNeedsPaintInvalidation : 1; |
398 unsigned m_verticalScrollbarNeedsPaintInvalidation : 1; | 399 unsigned m_verticalScrollbarNeedsPaintInvalidation : 1; |
399 unsigned m_scrollCornerNeedsPaintInvalidation : 1; | 400 unsigned m_scrollCornerNeedsPaintInvalidation : 1; |
400 | 401 |
401 // There are 6 possible combinations of writing mode and direction. Scroll | 402 // There are 6 possible combinations of writing mode and direction. Scroll |
402 // origin will be non-zero in the x or y axis if there is any reversed | 403 // origin will be non-zero in the x or y axis if there is any reversed |
403 // direction or writing-mode. The combinations are: | 404 // direction or writing-mode. The combinations are: |
404 // writing-mode / direction scrollOrigin.x() set scrollOrigin.y() set | 405 // writing-mode / direction scrollOrigin.x() set scrollOrigin.y() set |
405 // horizontal-tb / ltr NO NO | 406 // horizontal-tb / ltr NO NO |
406 // horizontal-tb / rtl YES NO | 407 // horizontal-tb / rtl YES NO |
407 // vertical-lr / ltr NO NO | 408 // vertical-lr / ltr NO NO |
408 // vertical-lr / rtl NO YES | 409 // vertical-lr / rtl NO YES |
409 // vertical-rl / ltr YES NO | 410 // vertical-rl / ltr YES NO |
410 // vertical-rl / rtl YES YES | 411 // vertical-rl / rtl YES YES |
411 IntPoint m_scrollOrigin; | 412 IntPoint m_scrollOrigin; |
412 }; | 413 }; |
413 | 414 |
414 } // namespace blink | 415 } // namespace blink |
415 | 416 |
416 #endif // ScrollableArea_h | 417 #endif // ScrollableArea_h |
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