1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
3 /* This Source Code Form is subject to the terms of the Mozilla Public
4  * License, v. 2.0. If a copy of the MPL was not distributed with this
5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
6 
7 #ifndef nsDOMStringMap_h
8 #define nsDOMStringMap_h
9 
10 #include "nsCycleCollectionParticipant.h"
11 #include "nsTArray.h"
12 #include "nsString.h"
13 #include "nsWrapperCache.h"
14 #include "mozilla/dom/Element.h"
15 #include "jsfriendapi.h"  // For js::ExpandoAndGeneration
16 
17 namespace mozilla {
18 class ErrorResult;
19 namespace dom {
20 class DocGroup;
21 }  // namespace dom
22 }  // namespace mozilla
23 
24 class nsDOMStringMap : public nsStubMutationObserver, public nsWrapperCache {
25  public:
26   NS_DECL_CYCLE_COLLECTING_ISUPPORTS
NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(nsDOMStringMap)27   NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(nsDOMStringMap)
28 
29   NS_DECL_NSIMUTATIONOBSERVER_ATTRIBUTECHANGED
30 
31   nsINode* GetParentObject() { return mElement; }
32 
33   mozilla::dom::DocGroup* GetDocGroup() const;
34 
35   explicit nsDOMStringMap(mozilla::dom::Element* aElement);
36 
37   // WebIDL API
38   virtual JSObject* WrapObject(JSContext* cx,
39                                JS::Handle<JSObject*> aGivenProto) override;
40   void NamedGetter(const nsAString& aProp, bool& found,
41                    mozilla::dom::DOMString& aResult) const;
42   void NamedSetter(const nsAString& aProp, const nsAString& aValue,
43                    mozilla::ErrorResult& rv);
44   void NamedDeleter(const nsAString& aProp, bool& found);
45   void GetSupportedNames(nsTArray<nsString>& aNames);
46 
47   js::ExpandoAndGeneration mExpandoAndGeneration;
48 
49  private:
50   virtual ~nsDOMStringMap();
51 
52  protected:
53   RefPtr<mozilla::dom::Element> mElement;
54   // Flag to guard against infinite recursion.
55   bool mRemovingProp;
56   static bool DataPropToAttr(const nsAString& aProp, nsAutoString& aResult);
57   static bool AttrToDataProp(const nsAString& aAttr, nsAutoString& aResult);
58 };
59 
60 #endif
61