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1 /* | 1 /* |
2 * Copyright (C) 2011 Google Inc. All rights reserved. | 2 * Copyright (C) 2011 Google Inc. All rights reserved. |
3 * | 3 * |
4 * Redistribution and use in source and binary forms, with or without | 4 * Redistribution and use in source and binary forms, with or without |
5 * modification, are permitted provided that the following conditions are | 5 * modification, are permitted provided that the following conditions are |
6 * met: | 6 * met: |
7 * | 7 * |
8 * * Redistributions of source code must retain the above copyright | 8 * * Redistributions of source code must retain the above copyright |
9 * notice, this list of conditions and the following disclaimer. | 9 * notice, this list of conditions and the following disclaimer. |
10 * * Redistributions in binary form must reproduce the above | 10 * * Redistributions in binary form must reproduce the above |
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31 #include "modules/plugins/PluginOcclusionSupport.h" | 31 #include "modules/plugins/PluginOcclusionSupport.h" |
32 | 32 |
33 #include "core/HTMLNames.h" | 33 #include "core/HTMLNames.h" |
34 #include "core/dom/Element.h" | 34 #include "core/dom/Element.h" |
35 #include "core/frame/FrameView.h" | 35 #include "core/frame/FrameView.h" |
36 #include "core/frame/LocalFrame.h" | 36 #include "core/frame/LocalFrame.h" |
37 #include "core/html/HTMLElement.h" | 37 #include "core/html/HTMLElement.h" |
38 #include "core/html/HTMLFrameOwnerElement.h" | 38 #include "core/html/HTMLFrameOwnerElement.h" |
39 #include "core/layout/LayoutBox.h" | 39 #include "core/layout/LayoutBox.h" |
40 #include "core/layout/LayoutObject.h" | 40 #include "core/layout/LayoutObject.h" |
41 #include "platform/Widget.h" | 41 #include "platform/FrameViewBase.h" |
42 #include "wtf/HashSet.h" | 42 #include "wtf/HashSet.h" |
43 | 43 |
44 // This file provides a utility function to support rendering certain elements | 44 // This file provides a utility function to support rendering certain elements |
45 // above plugins. | 45 // above plugins. |
46 | 46 |
47 namespace blink { | 47 namespace blink { |
48 | 48 |
49 static void getObjectStack(const LayoutObject* ro, | 49 static void getObjectStack(const LayoutObject* ro, |
50 Vector<const LayoutObject*>* roStack) { | 50 Vector<const LayoutObject*>* roStack) { |
51 roStack->clear(); | 51 roStack->clear(); |
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146 element = element->parentOrShadowHostElement(); | 146 element = element->parentOrShadowHostElement(); |
147 return element; | 147 return element; |
148 } | 148 } |
149 | 149 |
150 // Return a set of rectangles that should not be overdrawn by the | 150 // Return a set of rectangles that should not be overdrawn by the |
151 // plugin ("cutouts"). This helps implement the "iframe shim" | 151 // plugin ("cutouts"). This helps implement the "iframe shim" |
152 // technique of overlaying a windowed plugin with content from the | 152 // technique of overlaying a windowed plugin with content from the |
153 // page. In a nutshell, iframe elements should occlude plugins when | 153 // page. In a nutshell, iframe elements should occlude plugins when |
154 // they occur higher in the stacking order. | 154 // they occur higher in the stacking order. |
155 void getPluginOcclusions(Element* element, | 155 void getPluginOcclusions(Element* element, |
156 Widget* parentWidget, | 156 FrameViewBase* parentFrameViewBase, |
157 const IntRect& frameRect, | 157 const IntRect& frameRect, |
158 Vector<IntRect>& occlusions) { | 158 Vector<IntRect>& occlusions) { |
159 LayoutObject* pluginNode = element->layoutObject(); | 159 LayoutObject* pluginNode = element->layoutObject(); |
160 ASSERT(pluginNode); | 160 ASSERT(pluginNode); |
161 if (!pluginNode->style()) | 161 if (!pluginNode->style()) |
162 return; | 162 return; |
163 Vector<const LayoutObject*> pluginZstack; | 163 Vector<const LayoutObject*> pluginZstack; |
164 Vector<const LayoutObject*> iframeZstack; | 164 Vector<const LayoutObject*> iframeZstack; |
165 getObjectStack(pluginNode, &pluginZstack); | 165 getObjectStack(pluginNode, &pluginZstack); |
166 | 166 |
167 if (!parentWidget->isFrameView()) | 167 if (!parentFrameViewBase->isFrameView()) |
168 return; | 168 return; |
169 | 169 |
170 FrameView* parentFrameView = toFrameView(parentWidget); | 170 FrameView* parentFrameView = toFrameView(parentFrameViewBase); |
171 | 171 |
172 // Occlusions by iframes. | 172 // Occlusions by iframes. |
173 const FrameView::ChildrenWidgetSet* children = parentFrameView->children(); | 173 const FrameView::ChildrenWidgetSet* children = parentFrameView->children(); |
174 for (FrameView::ChildrenWidgetSet::const_iterator it = children->begin(); | 174 for (FrameView::ChildrenWidgetSet::const_iterator it = children->begin(); |
175 it != children->end(); ++it) { | 175 it != children->end(); ++it) { |
176 // We only care about FrameView's because iframes show up as FrameViews. | 176 // We only care about FrameView's because iframes show up as FrameViews. |
177 if (!(*it)->isFrameView()) | 177 if (!(*it)->isFrameView()) |
178 continue; | 178 continue; |
179 | 179 |
180 const FrameView* frameView = toFrameView(it->get()); | 180 const FrameView* frameView = toFrameView(it->get()); |
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202 // as being in the top layer. | 202 // as being in the top layer. |
203 const Element* ancestor = topLayerAncestor(element); | 203 const Element* ancestor = topLayerAncestor(element); |
204 Document* document = parentFrameView->frame().document(); | 204 Document* document = parentFrameView->frame().document(); |
205 const HeapVector<Member<Element>>& elements = document->topLayerElements(); | 205 const HeapVector<Member<Element>>& elements = document->topLayerElements(); |
206 size_t start = ancestor ? elements.find(ancestor) + 1 : 0; | 206 size_t start = ancestor ? elements.find(ancestor) + 1 : 0; |
207 for (size_t i = start; i < elements.size(); ++i) | 207 for (size_t i = start; i < elements.size(); ++i) |
208 addTreeToOcclusions(elements[i]->layoutObject(), frameRect, occlusions); | 208 addTreeToOcclusions(elements[i]->layoutObject(), frameRect, occlusions); |
209 } | 209 } |
210 | 210 |
211 } // namespace blink | 211 } // namespace blink |
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