82 lines
2.3 KiB
C++
82 lines
2.3 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef nsXULTemplateResultRDF_h__
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#define nsXULTemplateResultRDF_h__
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#include "nsCOMPtr.h"
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#include "nsIRDFResource.h"
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#include "nsXULTemplateQueryProcessorRDF.h"
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#include "nsRDFQuery.h"
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#include "nsRuleNetwork.h"
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#include "nsIXULTemplateResult.h"
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#include "nsRDFBinding.h"
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#include "mozilla/Attributes.h"
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/**
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* A single result of a query on an RDF graph
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*/
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class nsXULTemplateResultRDF final : public nsIXULTemplateResult
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{
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public:
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NS_DECL_CYCLE_COLLECTING_ISUPPORTS
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NS_DECL_CYCLE_COLLECTION_CLASS(nsXULTemplateResultRDF)
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NS_DECL_NSIXULTEMPLATERESULT
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explicit nsXULTemplateResultRDF(nsIRDFResource* aNode);
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nsXULTemplateResultRDF(nsRDFQuery* aQuery,
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const Instantiation& aInst,
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nsIRDFResource* aNode);
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nsITemplateRDFQuery* Query() { return mQuery; }
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nsXULTemplateQueryProcessorRDF* GetProcessor()
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{
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return (mQuery ? mQuery->Processor() : nullptr);
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}
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/**
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* Get the value of a variable, first by looking in the assignments and
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* then the bindings
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*/
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void
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GetAssignment(nsIAtom* aVar, nsIRDFNode** aValue);
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/**
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* Synchronize the bindings after a change in the RDF graph. Bindings that
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* would be affected will be assigned appropriately based on the change.
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*/
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bool
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SyncAssignments(nsIRDFResource* aSubject,
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nsIRDFResource* aPredicate,
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nsIRDFNode* aTarget);
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/**
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* Return true if the result has an instantiation involving a particular
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* memory element.
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*/
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bool
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HasMemoryElement(const MemoryElement& aMemoryElement);
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protected:
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~nsXULTemplateResultRDF();
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// query that generated the result
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nsCOMPtr<nsITemplateRDFQuery> mQuery;
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// resource node
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nsCOMPtr<nsIRDFResource> mNode;
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// data computed from query
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Instantiation mInst;
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// extra assignments made by rules (<binding> tags)
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nsBindingValues mBindingValues;
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};
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#endif // nsXULTemplateResultRDF_h__
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