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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 mozilla_dom_XPathEvaluator_h
#define mozilla_dom_XPathEvaluator_h
#include "nsIDOMXPathEvaluator.h"
#include "nsIWeakReference.h"
#include "nsAutoPtr.h"
#include "nsString.h"
#include "mozilla/Attributes.h"
#include "mozilla/ErrorResult.h"
#include "nsIDocument.h"
class nsINode;
class txIParseContext;
class txResultRecycler;
namespace mozilla {
namespace dom {
class GlobalObject;
class XPathExpression;
class XPathNSResolver;
class XPathResult;
/**
* A class for evaluating an XPath expression string
*/
class XPathEvaluator final : public nsIDOMXPathEvaluator
{
~XPathEvaluator();
public:
explicit XPathEvaluator(nsIDocument* aDocument = nullptr);
NS_DECL_ISUPPORTS
// nsIDOMXPathEvaluator interface
NS_DECL_NSIDOMXPATHEVALUATOR
// WebIDL API
bool WrapObject(JSContext* aCx, JS::Handle<JSObject*> aGivenProto, JS::MutableHandle<JSObject*> aReflector);
nsIDocument* GetParentObject()
{
nsCOMPtr<nsIDocument> doc = do_QueryReferent(mDocument);
return doc;
}
static already_AddRefed<XPathEvaluator>
Constructor(const GlobalObject& aGlobal, ErrorResult& rv);
XPathExpression*
CreateExpression(const nsAString& aExpression,
XPathNSResolver* aResolver,
ErrorResult& rv);
XPathExpression*
CreateExpression(const nsAString& aExpression,
nsINode* aResolver,
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:
XPathExpression*
CreateExpression(const nsAString& aExpression,
txIParseContext* aContext,
nsIDocument* aDocument,
ErrorResult& aRv);
nsWeakPtr mDocument;
RefPtr<txResultRecycler> mRecycler;
};
inline nsISupports*
ToSupports(XPathEvaluator* e)
{
return static_cast<nsIDOMXPathEvaluator*>(e);
}
/* d0a75e02-b5e7-11d5-a7f2-df109fb8a1fc */
#define TRANSFORMIIX_XPATH_EVALUATOR_CID \
{ 0xd0a75e02, 0xb5e7, 0x11d5, { 0xa7, 0xf2, 0xdf, 0x10, 0x9f, 0xb8, 0xa1, 0xfc } }
} // namespace dom
} // namespace mozilla
#endif /* mozilla_dom_XPathEvaluator_h */
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