michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: /*
michael@0:  * Implementation of DOMTokenList specified by HTML5.
michael@0:  */
michael@0: 
michael@0: #ifndef nsDOMTokenList_h___
michael@0: #define nsDOMTokenList_h___
michael@0: 
michael@0: #include "nsCOMPtr.h"
michael@0: #include "nsDOMString.h"
michael@0: #include "nsWrapperCache.h"
michael@0: #include "mozilla/dom/Element.h"
michael@0: #include "mozilla/dom/BindingDeclarations.h"
michael@0: 
michael@0: namespace mozilla {
michael@0: class ErrorResult;
michael@0: 
michael@0: } // namespace mozilla
michael@0: 
michael@0: class nsAttrValue;
michael@0: class nsIAtom;
michael@0: 
michael@0: // nsISupports must be on the primary inheritance chain
michael@0: // because nsDOMSettableTokenList is traversed by Element.
michael@0: class nsDOMTokenList : public nsISupports,
michael@0:                        public nsWrapperCache
michael@0: {
michael@0: protected:
michael@0:   typedef mozilla::dom::Element Element;
michael@0: 
michael@0: public:
michael@0:   NS_DECL_CYCLE_COLLECTING_ISUPPORTS
michael@0:   NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(nsDOMTokenList)
michael@0: 
michael@0:   nsDOMTokenList(Element* aElement, nsIAtom* aAttrAtom);
michael@0: 
michael@0:   virtual JSObject* WrapObject(JSContext *cx) MOZ_OVERRIDE;
michael@0: 
michael@0:   Element* GetParentObject()
michael@0:   {
michael@0:     return mElement;
michael@0:   }
michael@0: 
michael@0:   uint32_t Length();
michael@0:   void Item(uint32_t aIndex, nsAString& aResult)
michael@0:   {
michael@0:     bool found;
michael@0:     IndexedGetter(aIndex, found, aResult);
michael@0:     if (!found) {
michael@0:       SetDOMStringToNull(aResult);
michael@0:     }
michael@0:   }
michael@0:   void IndexedGetter(uint32_t aIndex, bool& aFound, nsAString& aResult);
michael@0:   bool Contains(const nsAString& aToken, mozilla::ErrorResult& aError);
michael@0:   void Add(const nsAString& aToken, mozilla::ErrorResult& aError);
michael@0:   void Add(const nsTArray<nsString>& aTokens,
michael@0:            mozilla::ErrorResult& aError);
michael@0:   void Remove(const nsAString& aToken, mozilla::ErrorResult& aError);
michael@0:   void Remove(const nsTArray<nsString>& aTokens,
michael@0:               mozilla::ErrorResult& aError);
michael@0:   bool Toggle(const nsAString& aToken,
michael@0:               const mozilla::dom::Optional<bool>& force,
michael@0:               mozilla::ErrorResult& aError);
michael@0:   void Stringify(nsAString& aResult);
michael@0: 
michael@0: protected:
michael@0:   virtual ~nsDOMTokenList();
michael@0: 
michael@0:   nsresult CheckToken(const nsAString& aStr);
michael@0:   nsresult CheckTokens(const nsTArray<nsString>& aStr);
michael@0:   void AddInternal(const nsAttrValue* aAttr,
michael@0:                    const nsTArray<nsString>& aTokens);
michael@0:   void RemoveInternal(const nsAttrValue* aAttr,
michael@0:                       const nsTArray<nsString>& aTokens);
michael@0:   inline const nsAttrValue* GetParsedAttr();
michael@0: 
michael@0:   nsCOMPtr<Element> mElement;
michael@0:   nsCOMPtr<nsIAtom> mAttrAtom;
michael@0: };
michael@0: 
michael@0: #endif // nsDOMTokenList_h___