dom/xul/XULPersist.h

   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 mozilla_dom_XULPersist_h
   8 #define mozilla_dom_XULPersist_h
   9
  10 #include "nsStubDocumentObserver.h"
  11
  12 #ifndef MOZ_NEW_XULSTORE
  13 class nsIXULStore;
  14 #endif
  15
  16 template <typename T>
  17 class nsCOMArray;
  18
  19 namespace mozilla {
  20 namespace dom {
  21
  22 class XULPersist final : public nsStubDocumentObserver {
  23  public:
  24   NS_DECL_ISUPPORTS
  25
  26   explicit XULPersist(Document* aDocument);
  27   void Init();
  28   void DropDocumentReference();
  29
  30   NS_DECL_NSIMUTATIONOBSERVER_ATTRIBUTECHANGED
  31
  32  protected:
  33   void Persist(mozilla::dom::Element* aElement, int32_t aNameSpaceID,
  34                nsAtom* aAttribute);
  35
  36  private:
  37   ~XULPersist();
  38   nsresult ApplyPersistentAttributes();
  39   nsresult ApplyPersistentAttributesInternal();
  40   nsresult ApplyPersistentAttributesToElements(const nsAString& aID,
  41                                                nsCOMArray<Element>& aElements);
  42
  43 #ifndef MOZ_NEW_XULSTORE
  44   nsCOMPtr<nsIXULStore> mLocalStore;
  45 #endif
  46
  47   // A weak pointer to our document. Nulled out by DropDocumentReference.
  48   Document* MOZ_NON_OWNING_REF mDocument;
  49 };
  50
  51 }  // namespace dom
  52 }  // namespace mozilla
  53
  54 #endif  // mozilla_dom_XULPersist_h