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| 1 // Copyright 2014 The Chromium Authors. All rights reserved. | 1 // Copyright 2014 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "config.h" | 5 #include "config.h" |
| 6 #include "core/paint/ViewPainter.h" | 6 #include "core/paint/ViewPainter.h" |
| 7 | 7 |
| 8 #include "core/frame/FrameView.h" | 8 #include "core/frame/FrameView.h" |
| 9 #include "core/layout/LayoutBox.h" | 9 #include "core/layout/LayoutBox.h" |
| 10 #include "core/layout/LayoutView.h" | 10 #include "core/layout/LayoutView.h" |
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| 62 void ViewPainter::paintBoxDecorationBackground(const PaintInfo& paintInfo) | 62 void ViewPainter::paintBoxDecorationBackground(const PaintInfo& paintInfo) |
| 63 { | 63 { |
| 64 if (m_layoutView.document().ownerElement() || !m_layoutView.view()) | 64 if (m_layoutView.document().ownerElement() || !m_layoutView.view()) |
| 65 return; | 65 return; |
| 66 | 66 |
| 67 if (paintInfo.skipRootBackground()) | 67 if (paintInfo.skipRootBackground()) |
| 68 return; | 68 return; |
| 69 | 69 |
| 70 bool shouldPaintBackground = true; | 70 bool shouldPaintBackground = true; |
| 71 Node* documentElement = m_layoutView.document().documentElement(); | 71 Node* documentElement = m_layoutView.document().documentElement(); |
| 72 if (LayoutBox* rootBox = documentElement ? toLayoutBox(documentElement->rend
erer()) : 0) | 72 if (LayoutBox* rootBox = documentElement ? toLayoutBox(documentElement->layo
utObject()) : 0) |
| 73 shouldPaintBackground = !rootFillsViewportBackground(rootBox) || !render
erObscuresBackground(rootBox); | 73 shouldPaintBackground = !rootFillsViewportBackground(rootBox) || !render
erObscuresBackground(rootBox); |
| 74 | 74 |
| 75 // If painting will entirely fill the view, no need to fill the background. | 75 // If painting will entirely fill the view, no need to fill the background. |
| 76 if (!shouldPaintBackground) | 76 if (!shouldPaintBackground) |
| 77 return; | 77 return; |
| 78 | 78 |
| 79 // This code typically only executes if the root element's visibility has be
en set to hidden, | 79 // This code typically only executes if the root element's visibility has be
en set to hidden, |
| 80 // if there is a transform on the <html>, or if there is a page scale factor
less than 1. | 80 // if there is a transform on the <html>, or if there is a page scale factor
less than 1. |
| 81 // Only fill with the base background color (typically white) if we're the r
oot document, | 81 // Only fill with the base background color (typically white) if we're the r
oot document, |
| 82 // since iframes/frames with no background in the child document should show
the parent's background. | 82 // since iframes/frames with no background in the child document should show
the parent's background. |
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| 104 { | 104 { |
| 105 ASSERT(rootBox); | 105 ASSERT(rootBox); |
| 106 // CSS Boxes always fill the viewport background (see paintRootBoxFillLayers
) | 106 // CSS Boxes always fill the viewport background (see paintRootBoxFillLayers
) |
| 107 if (!rootBox->isSVG()) | 107 if (!rootBox->isSVG()) |
| 108 return true; | 108 return true; |
| 109 | 109 |
| 110 return rootBox->frameRect().contains(m_layoutView.frameRect()); | 110 return rootBox->frameRect().contains(m_layoutView.frameRect()); |
| 111 } | 111 } |
| 112 | 112 |
| 113 } // namespace blink | 113 } // namespace blink |
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