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76 lines
2.4 KiB
C++
76 lines
2.4 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 mozilla_dom_XPathExpression_h
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#define mozilla_dom_XPathExpression_h
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#include "nsAutoPtr.h"
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#include "nsCycleCollectionParticipant.h"
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#include "nsIWeakReferenceUtils.h"
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#include "mozilla/Attributes.h"
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#include "mozilla/dom/NonRefcountedDOMObject.h"
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#include "mozilla/dom/XPathExpressionBinding.h"
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class Expr;
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class nsIDocument;
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class nsINode;
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class txResultRecycler;
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class txXPathNode;
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namespace mozilla {
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namespace dom {
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class XPathResult;
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/**
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* A class for evaluating an XPath expression string
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*/
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class XPathExpression MOZ_FINAL : public NonRefcountedDOMObject
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{
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public:
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XPathExpression(nsAutoPtr<Expr>&& aExpression, txResultRecycler* aRecycler,
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nsIDocument *aDocument);
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~XPathExpression();
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JSObject* WrapObject(JSContext* aCx, bool* aTookOwnership)
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{
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return XPathExpressionBinding::Wrap(aCx, this, aTookOwnership);
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}
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already_AddRefed<XPathResult>
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Evaluate(JSContext* aCx, nsINode& aContextNode, uint16_t aType,
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JS::Handle<JSObject*> aInResult, ErrorResult& aRv)
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{
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return EvaluateWithContext(aCx, aContextNode, 1, 1, aType, aInResult,
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aRv);
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}
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already_AddRefed<XPathResult>
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EvaluateWithContext(JSContext* aCx, nsINode& aContextNode,
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uint32_t aContextPosition, uint32_t aContextSize,
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uint16_t aType, JS::Handle<JSObject*> aInResult,
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ErrorResult& aRv);
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already_AddRefed<XPathResult>
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Evaluate(nsINode& aContextNode, uint16_t aType, XPathResult* aInResult,
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ErrorResult& aRv)
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{
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return EvaluateWithContext(aContextNode, 1, 1, aType, aInResult, aRv);
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}
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already_AddRefed<XPathResult>
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EvaluateWithContext(nsINode& aContextNode, uint32_t aContextPosition,
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uint32_t aContextSize, uint16_t aType,
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XPathResult* aInResult, ErrorResult& aRv);
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private:
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nsAutoPtr<Expr> mExpression;
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nsRefPtr<txResultRecycler> mRecycler;
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nsWeakPtr mDocument;
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bool mCheckDocument;
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};
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} // namespace dom
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} // namespace mozilla
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#endif /* mozilla_dom_XPathExpression_h */
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