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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 nsXULTemplateResultRDF_h__
#define nsXULTemplateResultRDF_h__
#include "nsCOMPtr.h"
#include "nsIRDFResource.h"
#include "nsXULTemplateQueryProcessorRDF.h"
#include "nsRDFQuery.h"
#include "nsRuleNetwork.h"
#include "nsIXULTemplateResult.h"
#include "nsRDFBinding.h"
#include "mozilla/Attributes.h"
/**
* A single result of a query on an RDF graph
*/
class nsXULTemplateResultRDF final : public nsIXULTemplateResult
{
public:
NS_DECL_CYCLE_COLLECTING_ISUPPORTS
NS_DECL_CYCLE_COLLECTION_CLASS(nsXULTemplateResultRDF)
NS_DECL_NSIXULTEMPLATERESULT
explicit nsXULTemplateResultRDF(nsIRDFResource* aNode);
nsXULTemplateResultRDF(nsRDFQuery* aQuery,
const Instantiation& aInst,
nsIRDFResource* aNode);
nsITemplateRDFQuery* Query() { return mQuery; }
nsXULTemplateQueryProcessorRDF* GetProcessor()
{
return (mQuery ? mQuery->Processor() : nullptr);
}
/**
* Get the value of a variable, first by looking in the assignments and
* then the bindings
*/
void
GetAssignment(nsIAtom* aVar, nsIRDFNode** aValue);
/**
* Synchronize the bindings after a change in the RDF graph. Bindings that
* would be affected will be assigned appropriately based on the change.
*/
bool
SyncAssignments(nsIRDFResource* aSubject,
nsIRDFResource* aPredicate,
nsIRDFNode* aTarget);
/**
* Return true if the result has an instantiation involving a particular
* memory element.
*/
bool
HasMemoryElement(const MemoryElement& aMemoryElement);
protected:
~nsXULTemplateResultRDF();
// query that generated the result
nsCOMPtr<nsITemplateRDFQuery> mQuery;
// resource node
nsCOMPtr<nsIRDFResource> mNode;
// data computed from query
Instantiation mInst;
// extra assignments made by rules (<binding> tags)
nsBindingValues mBindingValues;
};
#endif // nsXULTemplateResultRDF_h__
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