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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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| 37 * version of this file under the LGPL, indicate your decision by | 37 * version of this file under the LGPL, indicate your decision by |
| 38 * deletingthe provisions above and replace them with the notice and | 38 * deletingthe provisions above and replace them with the notice and |
| 39 * other provisions required by the MPL or the GPL, as the case may be. | 39 * other provisions required by the MPL or the GPL, as the case may be. |
| 40 * If you do not delete the provisions above, a recipient may use your | 40 * If you do not delete the provisions above, a recipient may use your |
| 41 * version of this file under any of the LGPL, the MPL or the GPL. | 41 * version of this file under any of the LGPL, the MPL or the GPL. |
| 42 */ | 42 */ |
| 43 | 43 |
| 44 #ifndef LayerScrollableArea_h | 44 #ifndef LayerScrollableArea_h |
| 45 #define LayerScrollableArea_h | 45 #define LayerScrollableArea_h |
| 46 | 46 |
| 47 | |
| 48 #include "core/layout/LayerFragment.h" | 47 #include "core/layout/LayerFragment.h" |
| 49 #include "core/rendering/RenderBox.h" | 48 #include "core/layout/LayoutBox.h" |
| 50 | |
| 51 #include "platform/scroll/ScrollableArea.h" | 49 #include "platform/scroll/ScrollableArea.h" |
| 52 | 50 |
| 53 namespace blink { | 51 namespace blink { |
| 54 | 52 |
| 55 enum ResizerHitTestType { | 53 enum ResizerHitTestType { |
| 56 ResizerForPointer, | 54 ResizerForPointer, |
| 57 ResizerForTouch | 55 ResizerForTouch |
| 58 }; | 56 }; |
| 59 | 57 |
| 60 class PlatformEvent; | 58 class PlatformEvent; |
| 61 class RenderBox; | 59 class LayoutBox; |
| 62 class Layer; | 60 class Layer; |
| 63 class LayoutScrollbarPart; | 61 class LayoutScrollbarPart; |
| 64 | 62 |
| 65 class LayerScrollableArea final : public ScrollableArea { | 63 class LayerScrollableArea final : public ScrollableArea { |
| 66 friend class Internals; | 64 friend class Internals; |
| 67 | 65 |
| 68 public: | 66 public: |
| 69 // FIXME: We should pass in the RenderBox but this opens a window | 67 // FIXME: We should pass in the LayoutBox but this opens a window |
| 70 // for crashers during Layer setup (see crbug.com/368062). | 68 // for crashers during Layer setup (see crbug.com/368062). |
| 71 LayerScrollableArea(Layer&); | 69 LayerScrollableArea(Layer&); |
| 72 virtual ~LayerScrollableArea(); | 70 virtual ~LayerScrollableArea(); |
| 73 | 71 |
| 74 bool hasHorizontalScrollbar() const { return horizontalScrollbar(); } | 72 bool hasHorizontalScrollbar() const { return horizontalScrollbar(); } |
| 75 bool hasVerticalScrollbar() const { return verticalScrollbar(); } | 73 bool hasVerticalScrollbar() const { return verticalScrollbar(); } |
| 76 | 74 |
| 77 virtual Scrollbar* horizontalScrollbar() const override { return m_hBar.get(
); } | 75 virtual Scrollbar* horizontalScrollbar() const override { return m_hBar.get(
); } |
| 78 virtual Scrollbar* verticalScrollbar() const override { return m_vBar.get();
} | 76 virtual Scrollbar* verticalScrollbar() const override { return m_vBar.get();
} |
| 79 | 77 |
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| 200 void updateNeedsCompositedScrolling(LCDTextMode = ConsiderLCDText); | 198 void updateNeedsCompositedScrolling(LCDTextMode = ConsiderLCDText); |
| 201 bool needsCompositedScrolling() const { return m_needsCompositedScrolling; } | 199 bool needsCompositedScrolling() const { return m_needsCompositedScrolling; } |
| 202 | 200 |
| 203 // These are used during compositing updates to determine if the overflow | 201 // These are used during compositing updates to determine if the overflow |
| 204 // controls need to be repositioned in the GraphicsLayer tree. | 202 // controls need to be repositioned in the GraphicsLayer tree. |
| 205 void setTopmostScrollChild(Layer*); | 203 void setTopmostScrollChild(Layer*); |
| 206 Layer* topmostScrollChild() const { ASSERT(!m_nextTopmostScrollChild); retur
n m_topmostScrollChild; } | 204 Layer* topmostScrollChild() const { ASSERT(!m_nextTopmostScrollChild); retur
n m_topmostScrollChild; } |
| 207 | 205 |
| 208 IntRect resizerCornerRect(const IntRect&, ResizerHitTestType) const; | 206 IntRect resizerCornerRect(const IntRect&, ResizerHitTestType) const; |
| 209 | 207 |
| 210 RenderBox& box() const; | 208 LayoutBox& box() const; |
| 211 Layer* layer() const; | 209 Layer* layer() const; |
| 212 | 210 |
| 213 LayoutScrollbarPart* resizer() { return m_resizer; } | 211 LayoutScrollbarPart* resizer() { return m_resizer; } |
| 214 | 212 |
| 215 const IntPoint& cachedOverlayScrollbarOffset() { return m_cachedOverlayScrol
lbarOffset; } | 213 const IntPoint& cachedOverlayScrollbarOffset() { return m_cachedOverlayScrol
lbarOffset; } |
| 216 void setCachedOverlayScrollbarOffset(const IntPoint& offset) { m_cachedOverl
ayScrollbarOffset = offset; } | 214 void setCachedOverlayScrollbarOffset(const IntPoint& offset) { m_cachedOverl
ayScrollbarOffset = offset; } |
| 217 | 215 |
| 218 IntRect rectForHorizontalScrollbar(const IntRect& borderBoxRect) const; | 216 IntRect rectForHorizontalScrollbar(const IntRect& borderBoxRect) const; |
| 219 IntRect rectForVerticalScrollbar(const IntRect& borderBoxRect) const; | 217 IntRect rectForVerticalScrollbar(const IntRect& borderBoxRect) const; |
| 220 | 218 |
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| 281 // Renderers to hold our custom scroll corner. | 279 // Renderers to hold our custom scroll corner. |
| 282 LayoutScrollbarPart* m_scrollCorner; | 280 LayoutScrollbarPart* m_scrollCorner; |
| 283 | 281 |
| 284 // Renderers to hold our custom resizer. | 282 // Renderers to hold our custom resizer. |
| 285 LayoutScrollbarPart* m_resizer; | 283 LayoutScrollbarPart* m_resizer; |
| 286 }; | 284 }; |
| 287 | 285 |
| 288 } // namespace blink | 286 } // namespace blink |
| 289 | 287 |
| 290 #endif // LayerScrollableArea_h | 288 #endif // LayerScrollableArea_h |
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