gecko-dev/editor/base/nsEditorController.h

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
 *
 * The contents of this file are subject to the Netscape Public
 * License Version 1.1 (the "License"); you may not use this file
 * except in compliance with the License. You may obtain a copy of
 * the License at http://www.mozilla.org/NPL/
 *
 * Software distributed under the License is distributed on an "AS
 * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
 * implied. See the License for the specific language governing
 * rights and limitations under the License.
 *
 * The Original Code is Mozilla Communicator client code.
 *
 * The Initial Developer of the Original Code is Netscape Communications
 * Corporation.  Portions created by Netscape are
 * Copyright (C) 1998 Netscape Communications Corporation. All
 * Rights Reserved.
 *
 * Contributor(s): 
 */

#define NS_EDITORCONTROLLER_CID \
{ 0x26fb965c, 0x9de6, 0x11d3, { 0xbc, 0xcc, 0x0, 0x60, 0xb0, 0xfc, 0x76, 0xbd } }

#include "nsIController.h"
#include "nsIEditorController.h"
#include "nsIControllerCommand.h"

#include "nsHashtable.h"
#include "nsString.h"
#include "nsWeakPtr.h"

class nsIHTMLContent;
class nsIGfxTextControlFrame;
class nsIEditor;
class nsISelectionController;
class nsBaseCommand;


class nsEditorController :  public nsIController,
                            public nsIEditorController
{
public:

          nsEditorController();
  virtual ~nsEditorController();

  // nsISupports
  NS_DECL_ISUPPORTS
    
  // nsIController
  NS_DECL_NSICONTROLLER

  /** init the controller */
  NS_IMETHOD Init();

  /** set the content for this controller instance */
  NS_IMETHOD SetContent(nsIHTMLContent *aContent);

  /** set the editor for this controller. Mutually exclusive with setContent*/
  NS_IMETHOD SetEditor(nsIEditor *aEditor);


protected:

  /** fetch the primary frame associated with mContent */
  NS_IMETHOD GetFrame(nsIGfxTextControlFrame **aFrame);

  /** fetch the editor associated with mContent */
  NS_IMETHOD GetEditor(nsIEditor ** aEditor);

  NS_IMETHOD GetSelectionController(nsISelectionController ** aSelCon);
  /** return PR_TRUE if the editor associated with mContent is enabled */
  PRBool IsEnabled();

  /* register a command */
  nsresult RegisterEditorCommand(nsBaseCommand* aCommand);
  
protected:

   nsIHTMLContent* mContent;    // weak reference, the content object owns this object

   //if editor is null then look to mContent. this is for dual use of window and content
   //attached controller.
   nsIEditor *mEditor;
   
   nsCOMPtr<nsIControllerCommandManager> mCommandManager;     // our reference to the command manager
   

private:

  static nsresult GetCommandManager(nsIControllerCommandManager* *outCommandManager);
  static nsresult RegisterEditorCommands(nsIControllerCommandManager* inCommandManager);
  static nsresult RegisterOneCommand(const PRUnichar* aCommandName, nsIControllerCommandManager *inCommandManager, nsBaseCommand* aCommand);
  
  // the singleton command manager
  static nsWeakPtr sCommandManager;
   
};