1 files changed, 66 insertions, 0 deletions
diff --git a/dom/xslt/xpath/XPathEvaluator.h b/dom/xslt/xpath/XPathEvaluator.h
new file mode 100644
index 0000000000..7401d93214
--- /dev/null
+++ b/dom/xslt/xpath/XPathEvaluator.h
@@ -0,0 +1,66 @@
+/* -*- 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 */