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| 1 /* | |
| 2 * Copyright (C) 1999 Lars Knoll (knoll@kde.org) | |
| 3 * (C) 1999 Antti Koivisto (koivisto@kde.org) | |
| 4 * (C) 2005 Allan Sandfeld Jensen (kde@carewolf.com) | |
| 5 * (C) 2005, 2006 Samuel Weinig (sam.weinig@gmail.com) | |
| 6 * Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved. | |
| 7 * Copyright (C) 2010, 2012 Google Inc. All rights reserved. | |
| 8 * | |
| 9 * This library is free software; you can redistribute it and/or | |
| 10 * modify it under the terms of the GNU Library General Public | |
| 11 * License as published by the Free Software Foundation; either | |
| 12 * version 2 of the License, or (at your option) any later version. | |
| 13 * | |
| 14 * This library is distributed in the hope that it will be useful, | |
| 15 * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 17 * Library General Public License for more details. | |
| 18 * | |
| 19 * You should have received a copy of the GNU Library General Public License | |
| 20 * along with this library; see the file COPYING.LIB. If not, write to | |
| 21 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, | |
| 22 * Boston, MA 02110-1301, USA. | |
| 23 */ | |
| 24 | |
| 25 #include "sky/engine/config.h" | |
| 26 #include "sky/engine/core/rendering/RenderLayerModelObject.h" | |
| 27 | |
| 28 #include "sky/engine/core/frame/LocalFrame.h" | |
| 29 #include "sky/engine/core/rendering/RenderLayer.h" | |
| 30 #include "sky/engine/core/rendering/RenderView.h" | |
| 31 | |
| 32 namespace blink { | |
| 33 | |
| 34 RenderLayerModelObject::RenderLayerModelObject(ContainerNode* node) | |
| 35 : RenderObject(node) | |
| 36 { | |
| 37 } | |
| 38 | |
| 39 RenderLayerModelObject::~RenderLayerModelObject() | |
| 40 { | |
| 41 // Our layer should have been destroyed and cleared by now | |
| 42 ASSERT(!hasLayer()); | |
| 43 ASSERT(!m_layer); | |
| 44 } | |
| 45 | |
| 46 void RenderLayerModelObject::destroyLayer() | |
| 47 { | |
| 48 setHasLayer(false); | |
| 49 m_layer = nullptr; | |
| 50 } | |
| 51 | |
| 52 void RenderLayerModelObject::createLayer(LayerType type) | |
| 53 { | |
| 54 ASSERT(!m_layer); | |
| 55 m_layer = adoptPtr(new RenderLayer(this, type)); | |
| 56 setHasLayer(true); | |
| 57 m_layer->insertOnlyThisLayer(); | |
| 58 } | |
| 59 | |
| 60 bool RenderLayerModelObject::hasSelfPaintingLayer() const | |
| 61 { | |
| 62 return m_layer && m_layer->isSelfPaintingLayer(); | |
| 63 } | |
| 64 | |
| 65 void RenderLayerModelObject::collectSelfPaintingLayers(Vector<RenderBox*>& layer
s) | |
| 66 { | |
| 67 for (RenderObject* child = slowFirstChild(); child; child = child->nextSibli
ng()) { | |
| 68 if (child->isBox()) { | |
| 69 RenderBox* childBox = toRenderBox(child); | |
| 70 if (childBox->hasSelfPaintingLayer()) | |
| 71 layers.append(childBox); | |
| 72 else | |
| 73 childBox->collectSelfPaintingLayers(layers); | |
| 74 } else if (child->isLayerModelObject()) { | |
| 75 toRenderLayerModelObject(child)->collectSelfPaintingLayers(layers); | |
| 76 } | |
| 77 } | |
| 78 } | |
| 79 | |
| 80 void RenderLayerModelObject::willBeDestroyed() | |
| 81 { | |
| 82 RenderObject::willBeDestroyed(); | |
| 83 destroyLayer(); | |
| 84 } | |
| 85 | |
| 86 void RenderLayerModelObject::styleWillChange(StyleDifference diff, const RenderS
tyle& newStyle) | |
| 87 { | |
| 88 if (RenderStyle* oldStyle = style()) { | |
| 89 if (parent()) { | |
| 90 if (oldStyle->hasAutoClip() != newStyle.hasAutoClip() | |
| 91 || oldStyle->clip() != newStyle.clip()) | |
| 92 layer()->clipper().clearClipRectsIncludingDescendants(); | |
| 93 } | |
| 94 } | |
| 95 | |
| 96 RenderObject::styleWillChange(diff, newStyle); | |
| 97 } | |
| 98 | |
| 99 void RenderLayerModelObject::styleDidChange(StyleDifference diff, const RenderSt
yle* oldStyle) | |
| 100 { | |
| 101 bool hadTransform = hasTransform(); | |
| 102 | |
| 103 RenderObject::styleDidChange(diff, oldStyle); | |
| 104 updateFromStyle(); | |
| 105 | |
| 106 LayerType type = layerTypeRequired(); | |
| 107 if (type != NoLayer) { | |
| 108 if (!layer()) { | |
| 109 createLayer(type); | |
| 110 if (parent() && !needsLayout()) { | |
| 111 // FIXME: We should call a specialized version of this function. | |
| 112 layer()->updateLayerPositionsAfterLayout(); | |
| 113 } | |
| 114 } | |
| 115 } else if (layer() && layer()->parent()) { | |
| 116 setHasTransform(false); // Either a transform wasn't specified or the ob
ject doesn't support transforms, so just null out the bit. | |
| 117 layer()->removeOnlyThisLayer(); // calls destroyLayer() which clears m_l
ayer | |
| 118 if (hadTransform) | |
| 119 setNeedsLayoutAndPrefWidthsRecalc(); | |
| 120 } | |
| 121 | |
| 122 if (layer()) { | |
| 123 // FIXME: Ideally we shouldn't need this setter but we can't easily infe
r an overflow-only layer | |
| 124 // from the style. | |
| 125 layer()->setLayerType(type); | |
| 126 layer()->styleChanged(diff, oldStyle); | |
| 127 } | |
| 128 } | |
| 129 | |
| 130 } // namespace blink | |
| 131 | |
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Chromium Code Reviews
Issue 953673002:
Delete RenderLayerModelObject. (Closed)
Base URL: git@github.com:domokit/mojo.git@master