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comparison: content/xul/templates/src/nsRDFConMemberTestNode.h
content/xul/templates/src/nsRDFConMemberTestNode.h
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| 1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ | |
| 2 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 #ifndef nsRDFConMemberTestNode_h__ | |
| 7 #define nsRDFConMemberTestNode_h__ | |
| 8 | |
| 9 #include "mozilla/Attributes.h" | |
| 10 #include "nscore.h" | |
| 11 #include "nsRDFTestNode.h" | |
| 12 #include "nsIRDFDataSource.h" | |
| 13 #include "nsXULTemplateQueryProcessorRDF.h" | |
| 14 | |
| 15 /** | |
| 16 * Rule network node that test if a resource is a member of an RDF | |
| 17 * container, or is ``contained'' by another resource that refers to | |
| 18 * it using a ``containment'' attribute. | |
| 19 */ | |
| 20 class nsRDFConMemberTestNode : public nsRDFTestNode | |
| 21 { | |
| 22 public: | |
| 23 nsRDFConMemberTestNode(TestNode* aParent, | |
| 24 nsXULTemplateQueryProcessorRDF* aProcessor, | |
| 25 nsIAtom* aContainerVariable, | |
| 26 nsIAtom* aMemberVariable); | |
| 27 | |
| 28 virtual nsresult FilterInstantiations(InstantiationSet& aInstantiations, | |
| 29 bool* aCantHandleYet) const MOZ_OVERRIDE; | |
| 30 | |
| 31 virtual bool | |
| 32 CanPropagate(nsIRDFResource* aSource, | |
| 33 nsIRDFResource* aProperty, | |
| 34 nsIRDFNode* aTarget, | |
| 35 Instantiation& aInitialBindings) const MOZ_OVERRIDE; | |
| 36 | |
| 37 virtual void | |
| 38 Retract(nsIRDFResource* aSource, | |
| 39 nsIRDFResource* aProperty, | |
| 40 nsIRDFNode* aTarget) const MOZ_OVERRIDE; | |
| 41 | |
| 42 class Element : public MemoryElement { | |
| 43 public: | |
| 44 Element(nsIRDFResource* aContainer, | |
| 45 nsIRDFNode* aMember) | |
| 46 : mContainer(aContainer), | |
| 47 mMember(aMember) { | |
| 48 MOZ_COUNT_CTOR(nsRDFConMemberTestNode::Element); } | |
| 49 | |
| 50 virtual ~Element() { MOZ_COUNT_DTOR(nsRDFConMemberTestNode::Element); } | |
| 51 | |
| 52 virtual const char* Type() const MOZ_OVERRIDE { | |
| 53 return "nsRDFConMemberTestNode::Element"; } | |
| 54 | |
| 55 virtual PLHashNumber Hash() const MOZ_OVERRIDE { | |
| 56 return PLHashNumber(NS_PTR_TO_INT32(mContainer.get())) ^ | |
| 57 (PLHashNumber(NS_PTR_TO_INT32(mMember.get())) >> 12); } | |
| 58 | |
| 59 virtual bool Equals(const MemoryElement& aElement) const MOZ_OVERRIDE { | |
| 60 if (aElement.Type() == Type()) { | |
| 61 const Element& element = static_cast<const Element&>(aElement); | |
| 62 return mContainer == element.mContainer && mMember == element.mMember; | |
| 63 } | |
| 64 return false; } | |
| 65 | |
| 66 protected: | |
| 67 nsCOMPtr<nsIRDFResource> mContainer; | |
| 68 nsCOMPtr<nsIRDFNode> mMember; | |
| 69 }; | |
| 70 | |
| 71 protected: | |
| 72 nsXULTemplateQueryProcessorRDF* mProcessor; | |
| 73 nsCOMPtr<nsIAtom> mContainerVariable; | |
| 74 nsCOMPtr<nsIAtom> mMemberVariable; | |
| 75 }; | |
| 76 | |
| 77 #endif // nsRDFConMemberTestNode_h__ |
