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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 nsContentTestNode_h__
#define nsContentTestNode_h__
#include "mozilla/Attributes.h"
#include "nscore.h"
#include "nsRuleNetwork.h"
#include "nsIAtom.h"
#include "nsIDOMDocument.h"
class nsXULTemplateQueryProcessorRDF;
/**
* The nsContentTestNode is always the top node in a query's rule network. It
* exists so that Constrain can filter out resources that aren't part of a
* result.
*/
class nsContentTestNode : public TestNode
{
public:
nsContentTestNode(nsXULTemplateQueryProcessorRDF* aProcessor,
nsIAtom* aContentVariable);
virtual nsresult FilterInstantiations(InstantiationSet& aInstantiations,
bool* aCantHandleYet) const override;
nsresult
Constrain(InstantiationSet& aInstantiations) override;
void SetTag(nsIAtom* aTag, nsIDOMDocument* aDocument)
{
mTag = aTag;
mDocument = aDocument;
}
protected:
nsXULTemplateQueryProcessorRDF *mProcessor;
nsIDOMDocument* mDocument;
nsCOMPtr<nsIAtom> mRefVariable;
nsCOMPtr<nsIAtom> mTag;
};
#endif // nsContentTestNode_h__
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