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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 * Copyright (C) 2003, 2006, 2007, 2009 Apple Inc. All rights reserved. | 4 * Copyright (C) 2003, 2006, 2007, 2009 Apple Inc. All rights reserved. |
| 5 * Copyright (C) 2010, 2012 Google Inc. All rights reserved. | 5 * Copyright (C) 2010, 2012 Google Inc. All rights reserved. |
| 6 * | 6 * |
| 7 * This library is free software; you can redistribute it and/or | 7 * This library is free software; you can redistribute it and/or |
| 8 * modify it under the terms of the GNU Library General Public | 8 * modify it under the terms of the GNU Library General Public |
| 9 * License as published by the Free Software Foundation; either | 9 * License as published by the Free Software Foundation; either |
| 10 * version 2 of the License, or (at your option) any later version. | 10 * version 2 of the License, or (at your option) any later version. |
| 11 * | 11 * |
| 12 * This library is distributed in the hope that it will be useful, | 12 * This library is distributed in the hope that it will be useful, |
| 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of | 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 15 * Library General Public License for more details. | 15 * Library General Public License for more details. |
| 16 * | 16 * |
| 17 * You should have received a copy of the GNU Library General Public License | 17 * You should have received a copy of the GNU Library General Public License |
| 18 * along with this library; see the file COPYING.LIB. If not, write to | 18 * along with this library; see the file COPYING.LIB. If not, write to |
| 19 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, | 19 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
| 20 * Boston, MA 02110-1301, USA. | 20 * Boston, MA 02110-1301, USA. |
| 21 */ | 21 */ |
| 22 | 22 |
| 23 #ifndef LayoutLayerModelObject_h | 23 #ifndef LayoutLayerModelObject_h |
| 24 #define LayoutLayerModelObject_h | 24 #define LayoutLayerModelObject_h |
| 25 | 25 |
| 26 #include "core/rendering/RenderObject.h" | 26 #include "core/layout/LayoutObject.h" |
| 27 | 27 |
| 28 namespace blink { | 28 namespace blink { |
| 29 | 29 |
| 30 class Layer; | 30 class Layer; |
| 31 class LayerScrollableArea; | 31 class LayerScrollableArea; |
| 32 | 32 |
| 33 enum LayerType { | 33 enum LayerType { |
| 34 NoLayer, | 34 NoLayer, |
| 35 NormalLayer, | 35 NormalLayer, |
| 36 // A forced or overflow clip layer is required for bookkeeping purposes, | 36 // A forced or overflow clip layer is required for bookkeeping purposes, |
| 37 // but does not force a layer to be self painting. | 37 // but does not force a layer to be self painting. |
| 38 OverflowClipLayer, | 38 OverflowClipLayer, |
| 39 ForcedLayer | 39 ForcedLayer |
| 40 }; | 40 }; |
| 41 | 41 |
| 42 class LayoutLayerModelObject : public RenderObject { | 42 class LayoutLayerModelObject : public LayoutObject { |
| 43 public: | 43 public: |
| 44 explicit LayoutLayerModelObject(ContainerNode*); | 44 explicit LayoutLayerModelObject(ContainerNode*); |
| 45 virtual ~LayoutLayerModelObject(); | 45 virtual ~LayoutLayerModelObject(); |
| 46 | 46 |
| 47 // This is the only way layers should ever be destroyed. | 47 // This is the only way layers should ever be destroyed. |
| 48 void destroyLayer(); | 48 void destroyLayer(); |
| 49 | 49 |
| 50 bool hasSelfPaintingLayer() const; | 50 bool hasSelfPaintingLayer() const; |
| 51 Layer* layer() const { return m_layer.get(); } | 51 Layer* layer() const { return m_layer.get(); } |
| 52 LayerScrollableArea* scrollableArea() const; | 52 LayerScrollableArea* scrollableArea() const; |
| 53 | 53 |
| 54 virtual void styleWillChange(StyleDifference, const RenderStyle& newStyle) o
verride; | 54 virtual void styleWillChange(StyleDifference, const RenderStyle& newStyle) o
verride; |
| 55 virtual void styleDidChange(StyleDifference, const RenderStyle* oldStyle) ov
erride; | 55 virtual void styleDidChange(StyleDifference, const RenderStyle* oldStyle) ov
erride; |
| 56 virtual void updateFromStyle() { } | 56 virtual void updateFromStyle() { } |
| 57 | 57 |
| 58 virtual LayerType layerTypeRequired() const = 0; | 58 virtual LayerType layerTypeRequired() const = 0; |
| 59 | 59 |
| 60 // Returns true if the background is painted opaque in the given rect. | 60 // Returns true if the background is painted opaque in the given rect. |
| 61 // The query rect is given in local coordinate system. | 61 // The query rect is given in local coordinate system. |
| 62 virtual bool backgroundIsKnownToBeOpaqueInRect(const LayoutRect&) const { re
turn false; } | 62 virtual bool backgroundIsKnownToBeOpaqueInRect(const LayoutRect&) const { re
turn false; } |
| 63 | 63 |
| 64 // This is null for anonymous renderers. | 64 // This is null for anonymous renderers. |
| 65 ContainerNode* node() const { return toContainerNode(RenderObject::node());
} | 65 ContainerNode* node() const { return toContainerNode(LayoutObject::node());
} |
| 66 | 66 |
| 67 virtual void invalidateTreeIfNeeded(const PaintInvalidationState&) override; | 67 virtual void invalidateTreeIfNeeded(const PaintInvalidationState&) override; |
| 68 | 68 |
| 69 // Indicate that the contents of this renderer need to be repainted. Only ha
s an effect if compositing is being used, | 69 // Indicate that the contents of this renderer need to be repainted. Only ha
s an effect if compositing is being used, |
| 70 void setBackingNeedsPaintInvalidationInRect(const LayoutRect&, PaintInvalida
tionReason) const; // r is in the coordinate space of this render object | 70 void setBackingNeedsPaintInvalidationInRect(const LayoutRect&, PaintInvalida
tionReason) const; // r is in the coordinate space of this render object |
| 71 | 71 |
| 72 protected: | 72 protected: |
| 73 void createLayer(LayerType); | 73 void createLayer(LayerType); |
| 74 | 74 |
| 75 virtual void willBeDestroyed() override; | 75 virtual void willBeDestroyed() override; |
| 76 | 76 |
| 77 virtual void addLayerHitTestRects(LayerHitTestRects&, const Layer*, const La
youtPoint&, const LayoutRect&) const override; | 77 virtual void addLayerHitTestRects(LayerHitTestRects&, const Layer*, const La
youtPoint&, const LayoutRect&) const override; |
| 78 | 78 |
| 79 void addChildFocusRingRects(Vector<LayoutRect>&, const LayoutPoint& addition
alOffset) const; | 79 void addChildFocusRingRects(Vector<LayoutRect>&, const LayoutPoint& addition
alOffset) const; |
| 80 | 80 |
| 81 private: | 81 private: |
| 82 virtual bool isLayoutLayerModelObject() const override final { return true;
} | 82 virtual bool isLayoutLayerModelObject() const override final { return true;
} |
| 83 | 83 |
| 84 OwnPtr<Layer> m_layer; | 84 OwnPtr<Layer> m_layer; |
| 85 | 85 |
| 86 // Used to store state between styleWillChange and styleDidChange | 86 // Used to store state between styleWillChange and styleDidChange |
| 87 static bool s_wasFloating; | 87 static bool s_wasFloating; |
| 88 }; | 88 }; |
| 89 | 89 |
| 90 DEFINE_RENDER_OBJECT_TYPE_CASTS(LayoutLayerModelObject, isLayoutLayerModelObject
()); | 90 DEFINE_LAYOUT_OBJECT_TYPE_CASTS(LayoutLayerModelObject, isLayoutLayerModelObject
()); |
| 91 | 91 |
| 92 } // namespace blink | 92 } // namespace blink |
| 93 | 93 |
| 94 #endif // LayoutLayerModelObject_h | 94 #endif // LayoutLayerModelObject_h |
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