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import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

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Roy Tam 2018-01-19 03:59:58 +08:00
commit dcd9973243
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77
dom/xul/templates/nsRDFConMemberTestNode.h Normal file
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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef nsRDFConMemberTestNode_h__
#define nsRDFConMemberTestNode_h__
#include "mozilla/Attributes.h"
#include "nscore.h"
#include "nsRDFTestNode.h"
#include "nsIRDFDataSource.h"
#include "nsXULTemplateQueryProcessorRDF.h"
/**
* Rule network node that test if a resource is a member of an RDF
* container, or is ``contained'' by another resource that refers to
* it using a ``containment'' attribute.
*/
class nsRDFConMemberTestNode : public nsRDFTestNode
{
public:
nsRDFConMemberTestNode(TestNode* aParent,
nsXULTemplateQueryProcessorRDF* aProcessor,
nsIAtom* aContainerVariable,
nsIAtom* aMemberVariable);
virtual nsresult FilterInstantiations(InstantiationSet& aInstantiations,
bool* aCantHandleYet) const override;
virtual bool
CanPropagate(nsIRDFResource* aSource,
nsIRDFResource* aProperty,
nsIRDFNode* aTarget,
Instantiation& aInitialBindings) const override;
virtual void
Retract(nsIRDFResource* aSource,
nsIRDFResource* aProperty,
nsIRDFNode* aTarget) const override;
class Element : public MemoryElement {
public:
Element(nsIRDFResource* aContainer,
nsIRDFNode* aMember)
: mContainer(aContainer),
mMember(aMember) {
MOZ_COUNT_CTOR(nsRDFConMemberTestNode::Element); }
virtual ~Element() { MOZ_COUNT_DTOR(nsRDFConMemberTestNode::Element); }
virtual const char* Type() const override {
return "nsRDFConMemberTestNode::Element"; }
virtual PLHashNumber Hash() const override {
return PLHashNumber(NS_PTR_TO_INT32(mContainer.get())) ^
(PLHashNumber(NS_PTR_TO_INT32(mMember.get())) >> 12); }
virtual bool Equals(const MemoryElement& aElement) const override {
if (aElement.Type() == Type()) {
const Element& element = static_cast<const Element&>(aElement);
return mContainer == element.mContainer && mMember == element.mMember;
}
return false; }
protected:
nsCOMPtr<nsIRDFResource> mContainer;
nsCOMPtr<nsIRDFNode> mMember;
};
protected:
nsXULTemplateQueryProcessorRDF* mProcessor;
nsCOMPtr<nsIAtom> mContainerVariable;
nsCOMPtr<nsIAtom> mMemberVariable;
};
#endif // nsRDFConMemberTestNode_h__