| OLD | NEW |
|---|
| 1 // Copyright 2016 The Chromium Authors. All rights reserved. | 1 // Copyright 2016 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "core/page/scrolling/RootScrollerController.h" | 5 #include "core/page/scrolling/RootScrollerController.h" |
| 6 | 6 |
| 7 #include "core/dom/Document.h" | 7 #include "core/dom/Document.h" |
| 8 #include "core/dom/Element.h" | 8 #include "core/dom/Element.h" |
| 9 #include "core/frame/FrameHost.h" | 9 #include "core/frame/FrameHost.h" |
| 10 #include "core/frame/FrameView.h" | 10 #include "core/frame/FrameView.h" |
| (...skipping 108 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 119 } | 119 } |
| 120 | 120 |
| 121 if (FrameHost* frameHost = m_document->frameHost()) | 121 if (FrameHost* frameHost = m_document->frameHost()) |
| 122 frameHost->globalRootScrollerController().didChangeRootScroller(); | 122 frameHost->globalRootScrollerController().didChangeRootScroller(); |
| 123 } | 123 } |
| 124 | 124 |
| 125 bool RootScrollerController::isValidRootScroller(const Element& element) const { | 125 bool RootScrollerController::isValidRootScroller(const Element& element) const { |
| 126 if (!element.layoutObject()) | 126 if (!element.layoutObject()) |
| 127 return false; | 127 return false; |
| 128 | 128 |
| 129 if (!RootScrollerUtil::scrollableAreaFor(element)) | 129 if (!RootScrollerUtil::scrollableAreaForRootScroller(element)) |
| 130 return false; | 130 return false; |
| 131 | 131 |
| 132 if (!fillsViewport(element)) | 132 if (!fillsViewport(element)) |
| 133 return false; | 133 return false; |
| 134 | 134 |
| 135 return true; | 135 return true; |
| 136 } | 136 } |
| 137 | 137 |
| 138 PaintLayer* RootScrollerController::rootScrollerPaintLayer() const { | 138 PaintLayer* RootScrollerController::rootScrollerPaintLayer() const { |
| 139 if (!m_effectiveRootScroller || !m_effectiveRootScroller->layoutObject() || | 139 return RootScrollerUtil::paintLayerForRootScroller(m_effectiveRootScroller); |
| 140 !m_effectiveRootScroller->layoutObject()->isBox()) | |
| 141 return nullptr; | |
| 142 | |
| 143 LayoutBox* box = toLayoutBox(m_effectiveRootScroller->layoutObject()); | |
| 144 PaintLayer* layer = box->layer(); | |
| 145 | |
| 146 // If the root scroller is the <html> element we do a bit of a fake out | |
| 147 // because while <html> has a PaintLayer, scrolling for it is handled by the | |
| 148 // #document's PaintLayer (i.e. the PaintLayerCompositor's root layer). The | |
| 149 // reason the root scroller is the <html> layer and not #document is because | |
| 150 // the latter is a Node but not an Element. | |
| 151 if (m_effectiveRootScroller->isSameNode(m_document->documentElement())) { | |
| 152 if (!layer || !layer->compositor()) | |
| 153 return nullptr; | |
| 154 return layer->compositor()->rootLayer(); | |
| 155 } | |
| 156 | |
| 157 return layer; | |
| 158 } | 140 } |
| 159 | 141 |
| 160 Element* RootScrollerController::defaultEffectiveRootScroller() { | 142 Element* RootScrollerController::defaultEffectiveRootScroller() { |
| 161 DCHECK(m_document); | 143 DCHECK(m_document); |
| 162 return m_document->documentElement(); | 144 return m_document->documentElement(); |
| 163 } | 145 } |
| 164 | 146 |
| 165 } // namespace blink | 147 } // namespace blink |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 2499853002:
Fixed clip resize for document.rootScroller with inertTopControls (Closed)
