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-rw-r--r--dom/xslt/xpath/XPathEvaluator.h94
1 files changed, 94 insertions, 0 deletions
diff --git a/dom/xslt/xpath/XPathEvaluator.h b/dom/xslt/xpath/XPathEvaluator.h
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index 000000000..e2a0ca46b
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+++ b/dom/xslt/xpath/XPathEvaluator.h
@@ -0,0 +1,94 @@
+/* -*- 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 */