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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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202 LayoutUnit horizontalScrollbarStart(int minX) const; | 202 LayoutUnit horizontalScrollbarStart(int minX) const; |
203 IntSize scrollbarOffset(const Scrollbar*) const; | 203 IntSize scrollbarOffset(const Scrollbar*) const; |
204 | 204 |
205 PassRefPtr<Scrollbar> createScrollbar(ScrollbarOrientation); | 205 PassRefPtr<Scrollbar> createScrollbar(ScrollbarOrientation); |
206 void destroyScrollbar(ScrollbarOrientation); | 206 void destroyScrollbar(ScrollbarOrientation); |
207 | 207 |
208 void setHasHorizontalScrollbar(bool hasScrollbar); | 208 void setHasHorizontalScrollbar(bool hasScrollbar); |
209 void setHasVerticalScrollbar(bool hasScrollbar); | 209 void setHasVerticalScrollbar(bool hasScrollbar); |
210 | 210 |
211 void updateScrollCornerStyle(); | 211 void updateScrollCornerStyle(); |
| 212 void updateMinimumSizeForResizing(); |
212 | 213 |
213 // See comments on isPointInResizeControl. | 214 // See comments on isPointInResizeControl. |
214 IntRect resizerCornerRect(const IntRect&, ResizerHitTestType) const; | 215 IntRect resizerCornerRect(const IntRect&, ResizerHitTestType) const; |
215 bool overflowControlsIntersectRect(const IntRect& localRect) const; | 216 bool overflowControlsIntersectRect(const IntRect& localRect) const; |
216 void updateResizerAreaSet(); | 217 void updateResizerAreaSet(); |
217 void updateResizerStyle(); | 218 void updateResizerStyle(); |
218 void drawPlatformResizerImage(GraphicsContext*, IntRect resizerCornerRect); | 219 void drawPlatformResizerImage(GraphicsContext*, IntRect resizerCornerRect); |
219 | 220 |
220 RenderLayer* layer() const; | 221 RenderLayer* layer() const; |
221 | 222 |
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239 unsigned m_needsCompositedScrolling : 1; | 240 unsigned m_needsCompositedScrolling : 1; |
240 | 241 |
241 ForceNeedsCompositedScrollingMode m_forceNeedsCompositedScrolling; | 242 ForceNeedsCompositedScrollingMode m_forceNeedsCompositedScrolling; |
242 | 243 |
243 // The width/height of our scrolled area. | 244 // The width/height of our scrolled area. |
244 LayoutRect m_overflowRect; | 245 LayoutRect m_overflowRect; |
245 | 246 |
246 // This is the (scroll) offset from scrollOrigin(). | 247 // This is the (scroll) offset from scrollOrigin(). |
247 IntSize m_scrollOffset; | 248 IntSize m_scrollOffset; |
248 | 249 |
| 250 // This is the minimum size for resizing. |
| 251 LayoutSize m_minimumSizeForResizing; |
| 252 |
249 IntPoint m_cachedOverlayScrollbarOffset; | 253 IntPoint m_cachedOverlayScrollbarOffset; |
250 | 254 |
251 // For areas with overflow, we have a pair of scrollbars. | 255 // For areas with overflow, we have a pair of scrollbars. |
252 RefPtr<Scrollbar> m_hBar; | 256 RefPtr<Scrollbar> m_hBar; |
253 RefPtr<Scrollbar> m_vBar; | 257 RefPtr<Scrollbar> m_vBar; |
254 | 258 |
255 // Renderers to hold our custom scroll corner. | 259 // Renderers to hold our custom scroll corner. |
256 RenderScrollbarPart* m_scrollCorner; | 260 RenderScrollbarPart* m_scrollCorner; |
257 | 261 |
258 // Renderers to hold our custom resizer. | 262 // Renderers to hold our custom resizer. |
259 RenderScrollbarPart* m_resizer; | 263 RenderScrollbarPart* m_resizer; |
260 }; | 264 }; |
261 | 265 |
262 } // Namespace WebCore | 266 } // Namespace WebCore |
263 | 267 |
264 #endif // RenderLayerScrollableArea_h | 268 #endif // RenderLayerScrollableArea_h |
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