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1 /* | 1 /* |
2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org) | 2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org) |
3 * (C) 1999 Antti Koivisto (koivisto@kde.org) | 3 * (C) 1999 Antti Koivisto (koivisto@kde.org) |
4 * (C) 2005 Allan Sandfeld Jensen (kde@carewolf.com) | 4 * (C) 2005 Allan Sandfeld Jensen (kde@carewolf.com) |
5 * (C) 2005, 2006 Samuel Weinig (sam.weinig@gmail.com) | 5 * (C) 2005, 2006 Samuel Weinig (sam.weinig@gmail.com) |
6 * Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights reserv
ed. | 6 * Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights reserv
ed. |
7 * Copyright (C) 2013 Adobe Systems Incorporated. All rights reserved. | 7 * Copyright (C) 2013 Adobe Systems Incorporated. All rights reserved. |
8 * | 8 * |
9 * This library is free software; you can redistribute it and/or | 9 * This library is free software; you can redistribute it and/or |
10 * modify it under the terms of the GNU Library General Public | 10 * modify it under the terms of the GNU Library General Public |
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326 bool isRootObject = isRoot(); | 326 bool isRootObject = isRoot(); |
327 bool isViewObject = isRenderView(); | 327 bool isViewObject = isRenderView(); |
328 | 328 |
329 // The root and the RenderView always paint their backgrounds/borders. | 329 // The root and the RenderView always paint their backgrounds/borders. |
330 if (isRootObject || isViewObject) | 330 if (isRootObject || isViewObject) |
331 setHasBoxDecorations(true); | 331 setHasBoxDecorations(true); |
332 | 332 |
333 setFloating(!isOutOfFlowPositioned() && styleToUse->isFloating()); | 333 setFloating(!isOutOfFlowPositioned() && styleToUse->isFloating()); |
334 | 334 |
335 bool boxHasOverflowClip = false; | 335 bool boxHasOverflowClip = false; |
336 // We also handle <body> and <html>, whose overflow applies to the viewport. | 336 if (!styleToUse->isOverflowVisible() && isRenderBlock() && !isViewObject) { |
337 if (!styleToUse->isOverflowVisible() && !isRootObject && isRenderBlock()) { | 337 // If overflow has been propagated to the viewport, it has no effect her
e. |
338 // Overflow on the body can propagate to the viewport under the followin
g conditions. | 338 if (node() != document().viewportDefiningElement()) { |
339 // (1) The root element is <html>. | |
340 // (2) We are the primary <body> (can be checked by looking at document.
body). | |
341 // (3) The root element has visible overflow. | |
342 if (isBody() && document().documentElement()->hasTagName(htmlTag) | |
343 && document().body() == node() | |
344 && document().documentElement()->renderer()->style()->isOverflowVisi
ble()) { | |
345 boxHasOverflowClip = false; | |
346 } else { | |
347 boxHasOverflowClip = true; | 339 boxHasOverflowClip = true; |
348 if (!hasOverflowClip()) { | 340 if (!hasOverflowClip()) { |
349 // If we are getting an overflow clip, preemptively erase any ov
erflowing content. | 341 // If we are getting an overflow clip, preemptively erase any ov
erflowing content. |
350 // FIXME: This should probably consult RenderOverflow. | 342 // FIXME: This should probably consult RenderOverflow. |
351 repaint(); | 343 repaint(); |
352 } | 344 } |
353 } | 345 } |
354 } | 346 } |
355 setHasOverflowClip(boxHasOverflowClip); | 347 setHasOverflowClip(boxHasOverflowClip); |
356 | 348 |
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4917 return 0; | 4909 return 0; |
4918 | 4910 |
4919 if (!layoutState && !flowThreadContainingBlock()) | 4911 if (!layoutState && !flowThreadContainingBlock()) |
4920 return 0; | 4912 return 0; |
4921 | 4913 |
4922 RenderBlock* containerBlock = containingBlock(); | 4914 RenderBlock* containerBlock = containingBlock(); |
4923 return containerBlock->offsetFromLogicalTopOfFirstPage() + logicalTop(); | 4915 return containerBlock->offsetFromLogicalTopOfFirstPage() + logicalTop(); |
4924 } | 4916 } |
4925 | 4917 |
4926 } // namespace WebCore | 4918 } // namespace WebCore |
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