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| 1 /* | 1 /* |
| 2 * Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012 Apple Inc. All rights | 2 * Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012 Apple Inc. All rights |
| 3 * reserved. | 3 * reserved. |
| 4 * | 4 * |
| 5 * Portions are Copyright (C) 1998 Netscape Communications Corporation. | 5 * Portions are Copyright (C) 1998 Netscape Communications Corporation. |
| 6 * | 6 * |
| 7 * Other contributors: | 7 * Other contributors: |
| 8 * Robert O'Callahan <roc+@cs.cmu.edu> | 8 * Robert O'Callahan <roc+@cs.cmu.edu> |
| 9 * David Baron <dbaron@fas.harvard.edu> | 9 * David Baron <dbaron@fas.harvard.edu> |
| 10 * Christian Biesinger <cbiesinger@web.de> | 10 * Christian Biesinger <cbiesinger@web.de> |
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| 46 | 46 |
| 47 #include "core/frame/LocalFrameView.h" | 47 #include "core/frame/LocalFrameView.h" |
| 48 #include "core/frame/Settings.h" | 48 #include "core/frame/Settings.h" |
| 49 #include "core/layout/LayoutView.h" | 49 #include "core/layout/LayoutView.h" |
| 50 #include "core/paint/ObjectPaintProperties.h" | 50 #include "core/paint/ObjectPaintProperties.h" |
| 51 #include "core/paint/PaintLayer.h" | 51 #include "core/paint/PaintLayer.h" |
| 52 #include "platform/graphics/paint/GeometryMapper.h" | 52 #include "platform/graphics/paint/GeometryMapper.h" |
| 53 | 53 |
| 54 namespace blink { | 54 namespace blink { |
| 55 | 55 |
| 56 static bool HasOverflowClip( | 56 static bool HasOverflowClip(const PaintLayer& layer) { |
| 57 const PaintLayer& layer) { | |
| 58 if (!layer.GetLayoutObject().IsBox()) | 57 if (!layer.GetLayoutObject().IsBox()) |
| 59 return false; | 58 return false; |
| 60 const LayoutBox& box = ToLayoutBox(layer.GetLayoutObject()); | 59 const LayoutBox& box = ToLayoutBox(layer.GetLayoutObject()); |
| 61 return box.ShouldClipOverflow(); | 60 return box.ShouldClipOverflow(); |
| 62 } | 61 } |
| 63 | 62 |
| 64 bool ClipRectsContext::ShouldRespectRootLayerClip() const { | 63 bool ClipRectsContext::ShouldRespectRootLayerClip() const { |
| 65 if (respect_overflow_clip == kIgnoreOverflowClip) | 64 if (respect_overflow_clip == kIgnoreOverflowClip) |
| 66 return false; | 65 return false; |
| 67 | 66 |
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| 486 *context.root_layer->GetLayoutObject().LocalBorderBoxProperties(); | 485 *context.root_layer->GetLayoutObject().LocalBorderBoxProperties(); |
| 487 | 486 |
| 488 auto* ancestor_properties = | 487 auto* ancestor_properties = |
| 489 context.root_layer->GetLayoutObject().PaintProperties(); | 488 context.root_layer->GetLayoutObject().PaintProperties(); |
| 490 if (!ancestor_properties) | 489 if (!ancestor_properties) |
| 491 return; | 490 return; |
| 492 | 491 |
| 493 if (context.ShouldRespectRootLayerClip()) { | 492 if (context.ShouldRespectRootLayerClip()) { |
| 494 const auto* ancestor_css_clip = ancestor_properties->CssClip(); | 493 const auto* ancestor_css_clip = ancestor_properties->CssClip(); |
| 495 if (ancestor_css_clip) { | 494 if (ancestor_css_clip) { |
| 496 DCHECK_EQ(destination_property_tree_state.Clip(), | 495 DCHECK_EQ(destination_property_tree_state.Clip(), ancestor_css_clip); |
| 497 ancestor_css_clip); | |
| 498 destination_property_tree_state.SetClip(ancestor_css_clip->Parent()); | 496 destination_property_tree_state.SetClip(ancestor_css_clip->Parent()); |
| 499 } | 497 } |
| 500 } else { | 498 } else { |
| 501 const auto* ancestor_overflow_clip = ancestor_properties->OverflowClip(); | 499 const auto* ancestor_overflow_clip = ancestor_properties->OverflowClip(); |
| 502 if (ancestor_overflow_clip) { | 500 if (ancestor_overflow_clip) { |
| 503 DCHECK_EQ(destination_property_tree_state.Clip(), | 501 DCHECK_EQ(destination_property_tree_state.Clip(), |
| 504 ancestor_overflow_clip->Parent()); | 502 ancestor_overflow_clip->Parent()); |
| 505 destination_property_tree_state.SetClip(ancestor_overflow_clip); | 503 destination_property_tree_state.SetClip(ancestor_overflow_clip); |
| 506 } | 504 } |
| 507 } | 505 } |
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| 588 DCHECK(!use_geometry_mapper_); | 586 DCHECK(!use_geometry_mapper_); |
| 589 ClipRectsContext context(root_layer, kPaintingClipRects, | 587 ClipRectsContext context(root_layer, kPaintingClipRects, |
| 590 kIgnorePlatformOverlayScrollbarSize, | 588 kIgnorePlatformOverlayScrollbarSize, |
| 591 subpixel_accumulation); | 589 subpixel_accumulation); |
| 592 if (respect_overflow_clip == kIgnoreOverflowClip) | 590 if (respect_overflow_clip == kIgnoreOverflowClip) |
| 593 context.SetIgnoreOverflowClip(); | 591 context.SetIgnoreOverflowClip(); |
| 594 return GetClipRects(context); | 592 return GetClipRects(context); |
| 595 } | 593 } |
| 596 | 594 |
| 597 } // namespace blink | 595 } // namespace blink |
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