1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/content/xul/templates/src/nsRDFConMemberTestNode.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,77 @@
1.4 +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#ifndef nsRDFConMemberTestNode_h__
1.10 +#define nsRDFConMemberTestNode_h__
1.11 +
1.12 +#include "mozilla/Attributes.h"
1.13 +#include "nscore.h"
1.14 +#include "nsRDFTestNode.h"
1.15 +#include "nsIRDFDataSource.h"
1.16 +#include "nsXULTemplateQueryProcessorRDF.h"
1.17 +
1.18 +/**
1.19 + * Rule network node that test if a resource is a member of an RDF
1.20 + * container, or is ``contained'' by another resource that refers to
1.21 + * it using a ``containment'' attribute.
1.22 + */
1.23 +class nsRDFConMemberTestNode : public nsRDFTestNode
1.24 +{
1.25 +public:
1.26 + nsRDFConMemberTestNode(TestNode* aParent,
1.27 + nsXULTemplateQueryProcessorRDF* aProcessor,
1.28 + nsIAtom* aContainerVariable,
1.29 + nsIAtom* aMemberVariable);
1.30 +
1.31 + virtual nsresult FilterInstantiations(InstantiationSet& aInstantiations,
1.32 + bool* aCantHandleYet) const MOZ_OVERRIDE;
1.33 +
1.34 + virtual bool
1.35 + CanPropagate(nsIRDFResource* aSource,
1.36 + nsIRDFResource* aProperty,
1.37 + nsIRDFNode* aTarget,
1.38 + Instantiation& aInitialBindings) const MOZ_OVERRIDE;
1.39 +
1.40 + virtual void
1.41 + Retract(nsIRDFResource* aSource,
1.42 + nsIRDFResource* aProperty,
1.43 + nsIRDFNode* aTarget) const MOZ_OVERRIDE;
1.44 +
1.45 + class Element : public MemoryElement {
1.46 + public:
1.47 + Element(nsIRDFResource* aContainer,
1.48 + nsIRDFNode* aMember)
1.49 + : mContainer(aContainer),
1.50 + mMember(aMember) {
1.51 + MOZ_COUNT_CTOR(nsRDFConMemberTestNode::Element); }
1.52 +
1.53 + virtual ~Element() { MOZ_COUNT_DTOR(nsRDFConMemberTestNode::Element); }
1.54 +
1.55 + virtual const char* Type() const MOZ_OVERRIDE {
1.56 + return "nsRDFConMemberTestNode::Element"; }
1.57 +
1.58 + virtual PLHashNumber Hash() const MOZ_OVERRIDE {
1.59 + return PLHashNumber(NS_PTR_TO_INT32(mContainer.get())) ^
1.60 + (PLHashNumber(NS_PTR_TO_INT32(mMember.get())) >> 12); }
1.61 +
1.62 + virtual bool Equals(const MemoryElement& aElement) const MOZ_OVERRIDE {
1.63 + if (aElement.Type() == Type()) {
1.64 + const Element& element = static_cast<const Element&>(aElement);
1.65 + return mContainer == element.mContainer && mMember == element.mMember;
1.66 + }
1.67 + return false; }
1.68 +
1.69 + protected:
1.70 + nsCOMPtr<nsIRDFResource> mContainer;
1.71 + nsCOMPtr<nsIRDFNode> mMember;
1.72 + };
1.73 +
1.74 +protected:
1.75 + nsXULTemplateQueryProcessorRDF* mProcessor;
1.76 + nsCOMPtr<nsIAtom> mContainerVariable;
1.77 + nsCOMPtr<nsIAtom> mMemberVariable;
1.78 +};
1.79 +
1.80 +#endif // nsRDFConMemberTestNode_h__
