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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 * Copyright (C) 2013 Intel Corporation. All rights reserved. | 3 * Copyright (C) 2013 Intel Corporation. All rights 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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178 bool hasBoxDecorationsOrBackground() const; | 178 bool hasBoxDecorationsOrBackground() const; |
179 bool hasVisibleBoxDecorations() const; | 179 bool hasVisibleBoxDecorations() const; |
180 // True if this layer container renderers that paint. | 180 // True if this layer container renderers that paint. |
181 bool hasNonEmptyChildRenderers() const; | 181 bool hasNonEmptyChildRenderers() const; |
182 | 182 |
183 // Will ensure that hasNonCompositiedChild are up to date. | 183 // Will ensure that hasNonCompositiedChild are up to date. |
184 void updateScrollingStateAfterCompositingChange(); | 184 void updateScrollingStateAfterCompositingChange(); |
185 bool hasVisibleNonLayerContent() const { return m_hasVisibleNonLayerContent;
} | 185 bool hasVisibleNonLayerContent() const { return m_hasVisibleNonLayerContent;
} |
186 bool hasNonCompositedChild() const { ASSERT(isAllowedToQueryCompositingState
()); return m_hasNonCompositedChild; } | 186 bool hasNonCompositedChild() const { ASSERT(isAllowedToQueryCompositingState
()); return m_hasNonCompositedChild; } |
187 | 187 |
188 bool usedTransparency() const { return m_usedTransparency; } | |
189 void setUsedTransparency(bool usedTransparency) { m_usedTransparency = usedT
ransparency; } | |
190 | |
191 // Gets the nearest enclosing positioned ancestor layer (also includes | 188 // Gets the nearest enclosing positioned ancestor layer (also includes |
192 // the <html> layer and the root layer). | 189 // the <html> layer and the root layer). |
193 RenderLayer* enclosingPositionedAncestor() const; | 190 RenderLayer* enclosingPositionedAncestor() const; |
194 | 191 |
195 bool isPaintInvalidationContainer() const; | 192 bool isPaintInvalidationContainer() const; |
196 | 193 |
197 // Do *not* call this method unless you know what you are dooing. You probab
ly want to call enclosingCompositingLayerForPaintInvalidation() instead. | 194 // Do *not* call this method unless you know what you are dooing. You probab
ly want to call enclosingCompositingLayerForPaintInvalidation() instead. |
198 // If includeSelf is true, may return this. | 195 // If includeSelf is true, may return this. |
199 RenderLayer* enclosingLayerWithCompositedLayerMapping(IncludeSelfOrNot) cons
t; | 196 RenderLayer* enclosingLayerWithCompositedLayerMapping(IncludeSelfOrNot) cons
t; |
200 | 197 |
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600 // FIXME(crbug.com/332791): Self-painting layer should be merged into the ov
erflow-only concept. | 597 // FIXME(crbug.com/332791): Self-painting layer should be merged into the ov
erflow-only concept. |
601 unsigned m_isSelfPaintingLayer : 1; | 598 unsigned m_isSelfPaintingLayer : 1; |
602 | 599 |
603 // If have no self-painting descendants, we don't have to walk our children
during painting. This can lead to | 600 // If have no self-painting descendants, we don't have to walk our children
during painting. This can lead to |
604 // significant savings, especially if the tree has lots of non-self-painting
layers grouped together (e.g. table cells). | 601 // significant savings, especially if the tree has lots of non-self-painting
layers grouped together (e.g. table cells). |
605 mutable unsigned m_hasSelfPaintingLayerDescendant : 1; | 602 mutable unsigned m_hasSelfPaintingLayerDescendant : 1; |
606 mutable unsigned m_hasSelfPaintingLayerDescendantDirty : 1; | 603 mutable unsigned m_hasSelfPaintingLayerDescendantDirty : 1; |
607 | 604 |
608 const unsigned m_isRootLayer : 1; | 605 const unsigned m_isRootLayer : 1; |
609 | 606 |
610 unsigned m_usedTransparency : 1; // Tracks whether we need to close a transp
arent layer, i.e., whether | |
611 // we ended up painting this layer or any desce
ndants (and therefore need to | |
612 // blend). | |
613 | |
614 unsigned m_visibleContentStatusDirty : 1; | 607 unsigned m_visibleContentStatusDirty : 1; |
615 unsigned m_hasVisibleContent : 1; | 608 unsigned m_hasVisibleContent : 1; |
616 unsigned m_visibleDescendantStatusDirty : 1; | 609 unsigned m_visibleDescendantStatusDirty : 1; |
617 unsigned m_hasVisibleDescendant : 1; | 610 unsigned m_hasVisibleDescendant : 1; |
618 | 611 |
619 unsigned m_hasVisibleNonLayerContent : 1; | 612 unsigned m_hasVisibleNonLayerContent : 1; |
620 | 613 |
621 unsigned m_isPaginated : 1; // If we think this layer is split by a multi-co
lumn ancestor, then this bit will be set. | 614 unsigned m_isPaginated : 1; // If we think this layer is split by a multi-co
lumn ancestor, then this bit will be set. |
622 | 615 |
623 unsigned m_3DTransformedDescendantStatusDirty : 1; | 616 unsigned m_3DTransformedDescendantStatusDirty : 1; |
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689 | 682 |
690 } // namespace blink | 683 } // namespace blink |
691 | 684 |
692 #ifndef NDEBUG | 685 #ifndef NDEBUG |
693 // Outside the WebCore namespace for ease of invocation from gdb. | 686 // Outside the WebCore namespace for ease of invocation from gdb. |
694 void showLayerTree(const blink::RenderLayer*); | 687 void showLayerTree(const blink::RenderLayer*); |
695 void showLayerTree(const blink::RenderObject*); | 688 void showLayerTree(const blink::RenderObject*); |
696 #endif | 689 #endif |
697 | 690 |
698 #endif // RenderLayer_h | 691 #endif // RenderLayer_h |
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