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-rw-r--r--dom/xul/templates/nsRDFConMemberTestNode.h77
1 files changed, 77 insertions, 0 deletions
diff --git a/dom/xul/templates/nsRDFConMemberTestNode.h b/dom/xul/templates/nsRDFConMemberTestNode.h
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+++ b/dom/xul/templates/nsRDFConMemberTestNode.h
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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__