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1 /* | 1 /* |
2 * Copyright (C) 2009 Apple Inc. All rights reserved. | 2 * Copyright (C) 2009 Apple Inc. All rights reserved. |
3 * | 3 * |
4 * This library is free software; you can redistribute it and/or | 4 * This library is free software; you can redistribute it and/or |
5 * modify it under the terms of the GNU Library General Public | 5 * modify it under the terms of the GNU Library General Public |
6 * License as published by the Free Software Foundation; either | 6 * License as published by the Free Software Foundation; either |
7 * version 2 of the License, or (at your option) any later version. | 7 * version 2 of the License, or (at your option) any later version. |
8 * | 8 * |
9 * This library is distributed in the hope that it will be useful, | 9 * This library is distributed in the hope that it will be useful, |
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of | 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of |
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
12 * Library General Public License for more details. | 12 * Library General Public License for more details. |
13 * | 13 * |
14 * You should have received a copy of the GNU Library General Public License | 14 * You should have received a copy of the GNU Library General Public License |
15 * along with this library; see the file COPYING.LIB. If not, write to | 15 * along with this library; see the file COPYING.LIB. If not, write to |
16 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, | 16 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, |
17 * Boston, MA 02110-1301, USA. | 17 * Boston, MA 02110-1301, USA. |
18 * | 18 * |
19 */ | 19 */ |
20 | 20 |
21 #include "config.h" | 21 #include "config.h" |
22 #include "RenderBoxModelObject.h" | 22 #include "RenderBoxModelObject.h" |
23 | 23 |
24 #include "RenderBlock.h" | |
25 #include "RenderLayer.h" | |
26 #include "RenderView.h" | |
27 | |
28 namespace WebCore { | 24 namespace WebCore { |
29 | 25 |
30 bool RenderBoxModelObject::s_wasFloating = false; | |
31 | |
32 RenderBoxModelObject::RenderBoxModelObject(Node* node) | 26 RenderBoxModelObject::RenderBoxModelObject(Node* node) |
33 : RenderObject(node) | 27 : RenderObject(node) |
34 , m_layer(0) | |
35 { | 28 { |
36 } | 29 } |
37 | 30 |
38 RenderBoxModelObject::~RenderBoxModelObject() | 31 RenderBoxModelObject::~RenderBoxModelObject() |
39 { | 32 { |
40 } | 33 } |
41 | 34 |
42 void RenderBoxModelObject::destroy() | |
43 { | |
44 // This must be done before we destroy the RenderObject. | |
45 if (m_layer) | |
46 m_layer->clearClipRects(); | |
47 RenderObject::destroy(); | |
48 } | |
49 | |
50 void RenderBoxModelObject::styleWillChange(StyleDifference diff, const RenderSty
le* newStyle) | |
51 { | |
52 s_wasFloating = isFloating(); | |
53 RenderObject::styleWillChange(diff, newStyle); | |
54 } | |
55 | |
56 void RenderBoxModelObject::styleDidChange(StyleDifference diff, const RenderStyl
e* oldStyle) | |
57 { | |
58 RenderObject::styleDidChange(diff, oldStyle); | |
59 updateBoxModelInfoFromStyle(); | |
60 | |
61 if (requiresLayer()) { | |
62 if (!layer()) { | |
63 if (s_wasFloating && isFloating()) | |
64 setChildNeedsLayout(true); | |
65 m_layer = new (renderArena()) RenderLayer(this); | |
66 setHasLayer(true); | |
67 m_layer->insertOnlyThisLayer(); | |
68 if (parent() && !needsLayout() && containingBlock()) | |
69 m_layer->updateLayerPositions(); | |
70 } | |
71 } else if (layer() && layer()->parent()) { | |
72 | |
73 RenderLayer* layer = m_layer; | |
74 m_layer = 0; | |
75 setHasLayer(false); | |
76 setHasTransform(false); // Either a transform wasn't specified or the ob
ject doesn't support transforms, so just null out the bit. | |
77 setHasReflection(false); | |
78 layer->removeOnlyThisLayer(); | |
79 if (s_wasFloating && isFloating()) | |
80 setChildNeedsLayout(true); | |
81 } | |
82 | |
83 if (m_layer) | |
84 m_layer->styleChanged(diff, oldStyle); | |
85 } | |
86 | |
87 void RenderBoxModelObject::updateBoxModelInfoFromStyle() | |
88 { | |
89 // Set the appropriate bits for a box model object. Since all bits are clea
red in styleWillChange, | |
90 // we only check for bits that could possibly be set to true. | |
91 setHasBoxDecorations(style()->hasBorder() || style()->hasBackground() || sty
le()->hasAppearance() || style()->boxShadow()); | |
92 setInline(style()->isDisplayInlineType()); | |
93 setRelPositioned(style()->position() == RelativePosition); | |
94 } | |
95 | |
96 int RenderBoxModelObject::relativePositionOffsetX() const | |
97 { | |
98 if (!style()->left().isAuto()) { | |
99 if (!style()->right().isAuto() && containingBlock()->style()->direction(
) == RTL) | |
100 return -style()->right().calcValue(containingBlockWidth()); | |
101 return style()->left().calcValue(containingBlockWidth()); | |
102 } | |
103 if (!style()->right().isAuto()) | |
104 return -style()->right().calcValue(containingBlockWidth()); | |
105 return 0; | |
106 } | |
107 | |
108 int RenderBoxModelObject::relativePositionOffsetY() const | |
109 { | |
110 if (!style()->top().isAuto()) { | |
111 if (!style()->top().isPercent() || containingBlock()->style()->height().
isFixed()) | |
112 return style()->top().calcValue(containingBlockHeight()); | |
113 } else if (!style()->bottom().isAuto()) { | |
114 if (!style()->bottom().isPercent() || containingBlock()->style()->height
().isFixed()) | |
115 return -style()->bottom().calcValue(containingBlockHeight()); | |
116 } | |
117 return 0; | |
118 } | |
119 | |
120 } // namespace WebCore | 35 } // namespace WebCore |
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