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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_XPathEvaluator_h
#define mozilla_dom_XPathEvaluator_h
#include "mozilla/dom/NonRefcountedDOMObject.h"
#include "nsString.h"
#include "mozilla/Attributes.h"
#include "mozilla/dom/Document.h"
class nsINode;
class txIParseContext;
class txResultRecycler;
namespace mozilla {
class ErrorResult;
namespace dom {
class GlobalObject;
class XPathExpression;
class XPathNSResolver;
class XPathResult;
/**
* A class for evaluating an XPath expression string
*/
class XPathEvaluator final : public NonRefcountedDOMObject {
public:
explicit XPathEvaluator(Document* aDocument = nullptr);
~XPathEvaluator();
// WebIDL API
bool WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto,
JS::MutableHandle<JSObject*> aReflector);
Document* GetParentObject() {
nsCOMPtr<Document> doc = do_QueryReferent(mDocument);
return doc;
}
static XPathEvaluator* Constructor(const GlobalObject& aGlobal);
XPathExpression* CreateExpression(const nsAString& aExpression,
XPathNSResolver* aResolver,
ErrorResult& rv);
XPathExpression* CreateExpression(const nsAString& aExpression,
nsINode* aResolver, ErrorResult& aRv);
XPathExpression* CreateExpression(const nsAString& aExpression,
txIParseContext* aContext,
Document* aDocument, ErrorResult& aRv);
nsINode* CreateNSResolver(nsINode& aNodeResolver) { return &aNodeResolver; }
already_AddRefed<XPathResult> Evaluate(
JSContext* aCx, const nsAString& aExpression, nsINode& aContextNode,
XPathNSResolver* aResolver, uint16_t aType, JS::Handle<JSObject*> aResult,
ErrorResult& rv);
private:
nsWeakPtr mDocument;
RefPtr<txResultRecycler> mRecycler;
};
} // namespace dom
} // namespace mozilla
#endif /* mozilla_dom_XPathEvaluator_h */
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