content/events/src/nsIMEStateManager.h

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   2 /* ***** BEGIN LICENSE BLOCK *****
   3  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
   4  *
   5  * The contents of this file are subject to the Mozilla Public License Version
   6  * 1.1 (the "License"); you may not use this file except in compliance with
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  14  *
  15  * The Original Code is mozilla.org code.
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  17  * The Initial Developer of the Original Code is
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  19  * Portions created by the Initial Developer are Copyright (C) 2006
  20  * the Initial Developer. All Rights Reserved.
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  22  * Contributor(s):
  23  *   Masayuki Nakano <masayuki@d-toybox.com>
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  25  * Alternatively, the contents of this file may be used under the terms of
  26  * either of the GNU General Public License Version 2 or later (the "GPL"),
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  37  * ***** END LICENSE BLOCK ***** */
  38
  39 #ifndef nsIMEStateManager_h__
  40 #define nsIMEStateManager_h__
  41
  42 #include "nscore.h"
  43
  44 class nsIContent;
  45 class nsPIDOMWindow;
  46 class nsPresContext;
  47 class nsIKBStateControl;
  48 class nsIFocusController;
  49
  50 /*
  51  * IME state manager
  52  */
  53
  54 class nsIMEStateManager
  55 {
  56 public:
  57   static nsresult OnDestroyPresContext(nsPresContext* aPresContext);
  58   static nsresult OnRemoveContent(nsPresContext* aPresContext,
  59                                   nsIContent* aContent);
  60   static nsresult OnChangeFocus(nsPresContext* aPresContext,
  61                                 nsIContent* aContent);
  62   static nsresult OnActivate(nsPresContext* aPresContext);
  63   static nsresult OnDeactivate(nsPresContext* aPresContext);
  64   static void OnInstalledMenuKeyboardListener(PRBool aInstalling);
  65 protected:
  66   static void SetIMEState(nsPresContext* aPresContext,
  67                           PRUint32 aState,
  68                           nsIKBStateControl* aKB);
  69   static PRUint32 GetNewIMEState(nsPresContext* aPresContext,
  70                                  nsIContent* aContent);
  71
  72   static PRBool IsActive(nsPresContext* aPresContext);
  73
  74   static nsIFocusController* GetFocusController(nsPresContext* aPresContext);
  75   static nsIKBStateControl* GetKBStateControl(nsPresContext* aPresContext);
  76
  77   static nsIContent*    sContent;
  78   static nsPresContext* sPresContext;
  79   static nsPIDOMWindow* sActiveWindow;
  80   static PRBool         sInstalledMenuKeyboardListener;
  81 };
  82
  83 #endif // nsIMEStateManager_h__