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-rw-r--r--dom/xul/templates/nsRDFConInstanceTestNode.h88
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diff --git a/dom/xul/templates/nsRDFConInstanceTestNode.h b/dom/xul/templates/nsRDFConInstanceTestNode.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 nsRDFConInstanceTestNode_h__
+#define nsRDFConInstanceTestNode_h__
+
+#include "mozilla/Attributes.h"
+#include "nscore.h"
+#include "nsRDFTestNode.h"
+#include "nsIRDFResource.h"
+#include "nsIRDFDataSource.h"
+#include "nsXULTemplateQueryProcessorRDF.h"
+
+/**
+ * Rule network node that tests if a resource is an RDF container, or
+ * uses multi-attributes to ``contain'' other elements.
+ */
+class nsRDFConInstanceTestNode : public nsRDFTestNode
+{
+public:
+ enum Test { eFalse, eTrue, eDontCare };
+
+ nsRDFConInstanceTestNode(TestNode* aParent,
+ nsXULTemplateQueryProcessorRDF* aProcessor,
+ nsIAtom* aContainerVariable,
+ Test aContainer,
+ Test aEmpty);
+
+ 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,
+ Test aContainerTest,
+ Test aEmptyTest)
+ : mContainer(aContainer),
+ mContainerTest(aContainerTest),
+ mEmptyTest(aEmptyTest) {
+ MOZ_COUNT_CTOR(nsRDFConInstanceTestNode::Element); }
+
+ virtual ~Element() { MOZ_COUNT_DTOR(nsRDFConInstanceTestNode::Element); }
+
+ virtual const char* Type() const override {
+ return "nsRDFConInstanceTestNode::Element"; }
+
+ virtual PLHashNumber Hash() const override {
+ return mozilla::HashGeneric(mContainerTest, mEmptyTest, mContainer.get());
+ }
+
+ virtual bool Equals(const MemoryElement& aElement) const override {
+ if (aElement.Type() == Type()) {
+ const Element& element = static_cast<const Element&>(aElement);
+ return mContainer == element.mContainer
+ && mContainerTest == element.mContainerTest
+ && mEmptyTest == element.mEmptyTest;
+ }
+ return false; }
+
+ protected:
+ nsCOMPtr<nsIRDFResource> mContainer;
+ Test mContainerTest;
+ Test mEmptyTest;
+ };
+
+protected:
+ nsXULTemplateQueryProcessorRDF* mProcessor;
+ nsCOMPtr<nsIAtom> mContainerVariable;
+ Test mContainer;
+ Test mEmpty;
+};
+
+#endif // nsRDFConInstanceTestNode_h__
+