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126 lines
4.3 KiB
C++
126 lines
4.3 KiB
C++
/*
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* Copyright (C) 2011 Google Inc. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Neither the name of Google Inc. nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef SKY_ENGINE_CORE_DOM_SHADOW_SHADOWROOT_H_
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#define SKY_ENGINE_CORE_DOM_SHADOW_SHADOWROOT_H_
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#include "sky/engine/core/dom/ContainerNode.h"
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#include "sky/engine/core/dom/DocumentFragment.h"
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#include "sky/engine/core/dom/Element.h"
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#include "sky/engine/core/dom/TreeScope.h"
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namespace blink {
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class Document;
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class ElementShadow;
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class ExceptionState;
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class InsertionPoint;
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class ShadowRootRareData;
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class StyleSheetList;
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class ShadowRoot final : public DocumentFragment, public TreeScope {
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DEFINE_WRAPPERTYPEINFO();
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public:
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static PassRefPtr<ShadowRoot> create(Document& document)
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{
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return adoptRef(new ShadowRoot(document));
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}
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void recalcStyle(StyleRecalcChange);
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// Disambiguate between Node and TreeScope hierarchies; TreeScope's implementation is simpler.
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using TreeScope::document;
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using TreeScope::getElementById;
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Element* host() const { return toElement(parentOrShadowHostNode()); }
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ElementShadow* owner() const { return host() ? host()->shadow() : 0; }
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virtual void insertedInto(ContainerNode*) override;
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virtual void removedFrom(ContainerNode*) override;
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void registerScopedHTMLStyleChild();
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void unregisterScopedHTMLStyleChild();
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bool containsContentElements() const;
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bool containsInsertionPoints() const { return containsContentElements(); }
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bool containsShadowRoots() const;
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// For Internals, don't use this.
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unsigned childShadowRootCount() const;
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unsigned numberOfStyles() const { return m_numberOfStyles; }
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void didAddInsertionPoint(InsertionPoint*);
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void didRemoveInsertionPoint(InsertionPoint*);
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const Vector<RefPtr<InsertionPoint> >& descendantInsertionPoints();
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// Make protected methods from base class public here.
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using TreeScope::setDocument;
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using TreeScope::setParentTreeScope;
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public:
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Element* activeElement() const;
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PassRefPtr<Node> cloneNode(bool, ExceptionState&);
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PassRefPtr<Node> cloneNode(ExceptionState& exceptionState) { return cloneNode(true, exceptionState); }
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StyleSheetList* styleSheets();
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private:
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ShadowRoot(Document&);
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virtual ~ShadowRoot();
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#if !ENABLE(OILPAN)
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virtual void dispose() override;
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#endif
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ShadowRootRareData* ensureShadowRootRareData();
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void addChildShadowRoot();
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void removeChildShadowRoot();
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void invalidateDescendantInsertionPoints();
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// ShadowRoots should never be cloned.
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virtual PassRefPtr<Node> cloneNode(bool) override { return nullptr; }
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OwnPtr<ShadowRootRareData> m_shadowRootRareData;
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unsigned m_numberOfStyles : 27;
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unsigned m_registeredWithParentShadowRoot : 1;
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unsigned m_descendantInsertionPointsIsValid : 1;
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};
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inline Element* ShadowRoot::activeElement() const
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{
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return adjustedFocusedElement();
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}
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DEFINE_NODE_TYPE_CASTS(ShadowRoot, isShadowRoot());
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DEFINE_TYPE_CASTS(ShadowRoot, TreeScope, treeScope, treeScope->rootNode().isShadowRoot(), treeScope.rootNode().isShadowRoot());
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} // namespace blink
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#endif // SKY_ENGINE_CORE_DOM_SHADOW_SHADOWROOT_H_
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