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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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| 146 virtual bool shouldUseIntegerScrollOffset() const { return !RuntimeEnabledFe
atures::fractionalScrollOffsetsEnabled(); } | 146 virtual bool shouldUseIntegerScrollOffset() const { return !RuntimeEnabledFe
atures::fractionalScrollOffsetsEnabled(); } |
| 147 | 147 |
| 148 virtual bool isActive() const = 0; | 148 virtual bool isActive() const = 0; |
| 149 virtual int scrollSize(ScrollbarOrientation) const = 0; | 149 virtual int scrollSize(ScrollbarOrientation) const = 0; |
| 150 void setScrollbarNeedsPaintInvalidation(Scrollbar*); | 150 void setScrollbarNeedsPaintInvalidation(Scrollbar*); |
| 151 virtual bool isScrollCornerVisible() const = 0; | 151 virtual bool isScrollCornerVisible() const = 0; |
| 152 virtual IntRect scrollCornerRect() const = 0; | 152 virtual IntRect scrollCornerRect() const = 0; |
| 153 void setScrollCornerNeedsPaintInvalidation(); | 153 void setScrollCornerNeedsPaintInvalidation(); |
| 154 virtual void getTickmarks(Vector<IntRect>&) const { } | 154 virtual void getTickmarks(Vector<IntRect>&) const { } |
| 155 | 155 |
| 156 // Convert points and rects between the scrollbar and its containing view. | 156 // Convert points and rects between the scrollbar and its containing Widget. |
| 157 // The client needs to implement these in order to be aware of layout effect
s | 157 // The client needs to implement these in order to be aware of layout effect
s |
| 158 // like CSS transforms. | 158 // like CSS transforms. |
| 159 virtual IntRect convertFromScrollbarToContainingView(const Scrollbar* scroll
bar, const IntRect& scrollbarRect) const | 159 virtual IntRect convertFromScrollbarToContainingWidget(const Scrollbar* scro
llbar, const IntRect& scrollbarRect) const |
| 160 { | 160 { |
| 161 return scrollbar->Widget::convertToContainingView(scrollbarRect); | 161 return scrollbar->Widget::convertToContainingWidget(scrollbarRect); |
| 162 } | 162 } |
| 163 virtual IntRect convertFromContainingViewToScrollbar(const Scrollbar* scroll
bar, const IntRect& parentRect) const | 163 virtual IntRect convertFromContainingWidgetToScrollbar(const Scrollbar* scro
llbar, const IntRect& parentRect) const |
| 164 { | 164 { |
| 165 return scrollbar->Widget::convertFromContainingView(parentRect); | 165 return scrollbar->Widget::convertFromContainingWidget(parentRect); |
| 166 } | 166 } |
| 167 virtual IntPoint convertFromScrollbarToContainingView(const Scrollbar* scrol
lbar, const IntPoint& scrollbarPoint) const | 167 virtual IntPoint convertFromScrollbarToContainingWidget(const Scrollbar* scr
ollbar, const IntPoint& scrollbarPoint) const |
| 168 { | 168 { |
| 169 return scrollbar->Widget::convertToContainingView(scrollbarPoint); | 169 return scrollbar->Widget::convertToContainingWidget(scrollbarPoint); |
| 170 } | 170 } |
| 171 virtual IntPoint convertFromContainingViewToScrollbar(const Scrollbar* scrol
lbar, const IntPoint& parentPoint) const | 171 virtual IntPoint convertFromContainingWidgetToScrollbar(const Scrollbar* scr
ollbar, const IntPoint& parentPoint) const |
| 172 { | 172 { |
| 173 return scrollbar->Widget::convertFromContainingView(parentPoint); | 173 return scrollbar->Widget::convertFromContainingWidget(parentPoint); |
| 174 } | 174 } |
| 175 | 175 |
| 176 virtual Scrollbar* horizontalScrollbar() const { return 0; } | 176 virtual Scrollbar* horizontalScrollbar() const { return 0; } |
| 177 virtual Scrollbar* verticalScrollbar() const { return 0; } | 177 virtual Scrollbar* verticalScrollbar() const { return 0; } |
| 178 | 178 |
| 179 // scrollPosition is relative to the scrollOrigin. i.e. If the page is RTL | 179 // scrollPosition is relative to the scrollOrigin. i.e. If the page is RTL |
| 180 // then scrollPosition will be negative. By default, scrollPositionDouble() | 180 // then scrollPosition will be negative. By default, scrollPositionDouble() |
| 181 // just call into scrollPosition(). Subclass can override scrollPositionDoub
le() | 181 // just call into scrollPosition(). Subclass can override scrollPositionDoub
le() |
| 182 // to return floating point precision scrolloffset. | 182 // to return floating point precision scrolloffset. |
| 183 // FIXME: Remove scrollPosition(). crbug.com/414283. | 183 // FIXME: Remove scrollPosition(). crbug.com/414283. |
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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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