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1 /* | 1 /* |
2 * Copyright (C) 2003, 2009, 2012 Apple Inc. All rights reserved. | 2 * Copyright (C) 2003, 2009, 2012 Apple Inc. All rights reserved. |
3 * | 3 * |
4 * Portions are Copyright (C) 1998 Netscape Communications Corporation. | 4 * Portions are Copyright (C) 1998 Netscape Communications Corporation. |
5 * | 5 * |
6 * Other contributors: | 6 * Other contributors: |
7 * Robert O'Callahan <roc+@cs.cmu.edu> | 7 * Robert O'Callahan <roc+@cs.cmu.edu> |
8 * David Baron <dbaron@fas.harvard.edu> | 8 * David Baron <dbaron@fas.harvard.edu> |
9 * Christian Biesinger <cbiesinger@web.de> | 9 * Christian Biesinger <cbiesinger@web.de> |
10 * Randall Jesup <rjesup@wgate.com> | 10 * Randall Jesup <rjesup@wgate.com> |
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165 | 165 |
166 ~PaintLayerScrollableArea() override; | 166 ~PaintLayerScrollableArea() override; |
167 void dispose(); | 167 void dispose(); |
168 | 168 |
169 bool hasHorizontalScrollbar() const { return horizontalScrollbar(); } | 169 bool hasHorizontalScrollbar() const { return horizontalScrollbar(); } |
170 bool hasVerticalScrollbar() const { return verticalScrollbar(); } | 170 bool hasVerticalScrollbar() const { return verticalScrollbar(); } |
171 | 171 |
172 Scrollbar* horizontalScrollbar() const override { return m_scrollbarManager.
horizontalScrollbar(); } | 172 Scrollbar* horizontalScrollbar() const override { return m_scrollbarManager.
horizontalScrollbar(); } |
173 Scrollbar* verticalScrollbar() const override { return m_scrollbarManager.ve
rticalScrollbar(); } | 173 Scrollbar* verticalScrollbar() const override { return m_scrollbarManager.ve
rticalScrollbar(); } |
174 | 174 |
175 HostWindow* hostWindow() const override; | 175 HostWindow* getHostWindow() const override; |
176 | 176 |
177 // For composited scrolling, we allocate an extra GraphicsLayer to hold | 177 // For composited scrolling, we allocate an extra GraphicsLayer to hold |
178 // onto the scrolling content. The layer can be shifted on the GPU and | 178 // onto the scrolling content. The layer can be shifted on the GPU and |
179 // composited at little cost. | 179 // composited at little cost. |
180 // Note that this is done in CompositedLayerMapping, this function being | 180 // Note that this is done in CompositedLayerMapping, this function being |
181 // only a helper. | 181 // only a helper. |
182 GraphicsLayer* layerForScrolling() const override; | 182 GraphicsLayer* layerForScrolling() const override; |
183 | 183 |
184 // GraphicsLayers for the scrolling components. | 184 // GraphicsLayers for the scrolling components. |
185 // | 185 // |
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325 PaintLayer* layer() const; | 325 PaintLayer* layer() const; |
326 | 326 |
327 LayoutScrollbarPart* resizer() const override { return m_resizer; } | 327 LayoutScrollbarPart* resizer() const override { return m_resizer; } |
328 | 328 |
329 const IntPoint& cachedOverlayScrollbarOffset() { return m_cachedOverlayScrol
lbarOffset; } | 329 const IntPoint& cachedOverlayScrollbarOffset() { return m_cachedOverlayScrol
lbarOffset; } |
330 void setCachedOverlayScrollbarOffset(const IntPoint& offset) { m_cachedOverl
ayScrollbarOffset = offset; } | 330 void setCachedOverlayScrollbarOffset(const IntPoint& offset) { m_cachedOverl
ayScrollbarOffset = offset; } |
331 | 331 |
332 IntRect rectForHorizontalScrollbar(const IntRect& borderBoxRect) const; | 332 IntRect rectForHorizontalScrollbar(const IntRect& borderBoxRect) const; |
333 IntRect rectForVerticalScrollbar(const IntRect& borderBoxRect) const; | 333 IntRect rectForVerticalScrollbar(const IntRect& borderBoxRect) const; |
334 | 334 |
335 Widget* widget() override; | 335 Widget* getWidget() override; |
336 ScrollAnchor& scrollAnchor() { return m_scrollAnchor; } | 336 ScrollAnchor& scrollAnchor() { return m_scrollAnchor; } |
337 bool isPaintLayerScrollableArea() const override { return true; } | 337 bool isPaintLayerScrollableArea() const override { return true; } |
338 | 338 |
339 bool shouldRebuildHorizontalScrollbarLayer() const { return m_rebuildHorizon
talScrollbarLayer; } | 339 bool shouldRebuildHorizontalScrollbarLayer() const { return m_rebuildHorizon
talScrollbarLayer; } |
340 bool shouldRebuildVerticalScrollbarLayer() const { return m_rebuildVerticalS
crollbarLayer; } | 340 bool shouldRebuildVerticalScrollbarLayer() const { return m_rebuildVerticalS
crollbarLayer; } |
341 void resetRebuildScrollbarLayerFlags(); | 341 void resetRebuildScrollbarLayerFlags(); |
342 | 342 |
343 DECLARE_VIRTUAL_TRACE(); | 343 DECLARE_VIRTUAL_TRACE(); |
344 | 344 |
345 private: | 345 private: |
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426 #endif | 426 #endif |
427 }; | 427 }; |
428 | 428 |
429 DEFINE_TYPE_CASTS(PaintLayerScrollableArea, ScrollableArea, scrollableArea, | 429 DEFINE_TYPE_CASTS(PaintLayerScrollableArea, ScrollableArea, scrollableArea, |
430 scrollableArea->isPaintLayerScrollableArea(), | 430 scrollableArea->isPaintLayerScrollableArea(), |
431 scrollableArea.isPaintLayerScrollableArea()); | 431 scrollableArea.isPaintLayerScrollableArea()); |
432 | 432 |
433 } // namespace blink | 433 } // namespace blink |
434 | 434 |
435 #endif // LayerScrollableArea_h | 435 #endif // LayerScrollableArea_h |
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