widget/cocoa/nsMenuGroupOwnerX.h

   1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* This Source Code Form is subject to the terms of the Mozilla Public
   3  * License, v. 2.0. If a copy of the MPL was not distributed with this
   4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   5
   6 #ifndef nsMenuGroupOwnerX_h_
   7 #define nsMenuGroupOwnerX_h_
   8
   9 #import <Cocoa/Cocoa.h>
  10
  11 #include "nsMenuBaseX.h"
  12 #include "nsIMutationObserver.h"
  13 #include "nsHashtable.h"
  14 #include "nsHashKeys.h"
  15 #include "nsDataHashtable.h"
  16 #include "nsAutoPtr.h"
  17 #include "nsString.h"
  18
  19
  20 class nsMenuX;
  21 class nsMenuItemX;
  22 class nsChangeObserver;
  23 class nsIWidget;
  24 class nsIContent;
  25 class nsIDocument;
  26
  27 class nsMenuGroupOwnerX : public nsMenuObjectX, public nsIMutationObserver
  28 {
  29 public:
  30   nsMenuGroupOwnerX();
  31   virtual ~nsMenuGroupOwnerX();
  32
  33   nsresult Create(nsIContent * aContent);
  34
  35   void RegisterForContentChanges(nsIContent* aContent,
  36                                  nsChangeObserver* aMenuObject);
  37   void UnregisterForContentChanges(nsIContent* aContent);
  38   uint32_t RegisterForCommand(nsMenuItemX* aItem);
  39   void UnregisterCommand(uint32_t aCommandID);
  40   nsMenuItemX* GetMenuItemForCommandID(uint32_t inCommandID);
  41
  42   NS_DECL_ISUPPORTS
  43   NS_DECL_NSIMUTATIONOBSERVER
  44
  45 protected:
  46   nsChangeObserver* LookupContentChangeObserver(nsIContent* aContent);
  47
  48   uint32_t  mCurrentCommandID;  // unique command id (per menu-bar) to
  49                                 // give to next item that asks
  50   nsIDocument* mDocument;       // pointer to document
  51
  52   // stores observers for content change notification
  53   nsDataHashtable<nsPtrHashKey<nsIContent>, nsChangeObserver *> mContentToObserverTable;
  54
  55   // stores mapping of command IDs to menu objects
  56   nsDataHashtable<nsUint32HashKey, nsMenuItemX *> mCommandToMenuObjectTable;
  57 };
  58
  59 #endif // nsMenuGroupOwner_h_