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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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 mozilla_dom_XPathExpression_h
#define mozilla_dom_XPathExpression_h
#include "nsCycleCollectionParticipant.h"
#include "nsIWeakReferenceUtils.h"
#include "mozilla/Attributes.h"
#include "mozilla/dom/NonRefcountedDOMObject.h"
#include "mozilla/dom/XPathExpressionBinding.h"
#include "mozilla/UniquePtr.h"
class Expr;
class nsINode;
class txResultRecycler;
namespace mozilla {
namespace dom {
class Document;
class XPathResult;
/**
* A class for evaluating an XPath expression string
*/
class XPathExpression final : public NonRefcountedDOMObject {
public:
XPathExpression(mozilla::UniquePtr<Expr>&& aExpression,
txResultRecycler* aRecycler, Document* aDocument);
~XPathExpression();
bool WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto,
JS::MutableHandle<JSObject*> aReflector) {
return XPathExpression_Binding::Wrap(aCx, this, aGivenProto, aReflector);
}
already_AddRefed<XPathResult> Evaluate(JSContext* aCx, nsINode& aContextNode,
uint16_t aType,
JS::Handle<JSObject*> aInResult,
ErrorResult& aRv) {
return EvaluateWithContext(aCx, aContextNode, 1, 1, aType, aInResult, aRv);
}
already_AddRefed<XPathResult> EvaluateWithContext(
JSContext* aCx, nsINode& aContextNode, uint32_t aContextPosition,
uint32_t aContextSize, uint16_t aType, JS::Handle<JSObject*> aInResult,
ErrorResult& aRv);
already_AddRefed<XPathResult> Evaluate(nsINode& aContextNode, uint16_t aType,
XPathResult* aInResult,
ErrorResult& aRv) {
return EvaluateWithContext(aContextNode, 1, 1, aType, aInResult, aRv);
}
already_AddRefed<XPathResult> EvaluateWithContext(
nsINode& aContextNode, uint32_t aContextPosition, uint32_t aContextSize,
uint16_t aType, XPathResult* aInResult, ErrorResult& aRv);
private:
mozilla::UniquePtr<Expr> mExpression;
RefPtr<txResultRecycler> mRecycler;
nsWeakPtr mDocument;
bool mCheckDocument;
};
} // namespace dom
} // namespace mozilla
#endif /* mozilla_dom_XPathExpression_h */
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