profiledirserviceprovider.h

JDesktop Integration Components （JDIC）

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 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
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 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
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 * for the specific language governing rights and limitations under the
 * License.
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 * The Original Code is mozilla.org code.
 *
 * The Initial Developer of the Original Code is
 * Netscape Communications Corporation.
 * Portions created by the Initial Developer are Copyright (C) 2002
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   Conrad Carlen <[e-mail]>
 *
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 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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// from the Gecko SDK
#include "nsIDirectoryService.h"
#include "nsIFile.h"
#include "nsCOMPtr.h"

// --------------------------------------------------------------------------------------
// ProfileDirServiceProvider - The nsIDirectoryServiceProvider implementation used for
// profile-relative file locations.
// --------------------------------------------------------------------------------------

class ProfileDirServiceProvider: public nsIDirectoryServiceProvider
{  
  NS_DECL_ISUPPORTS
  NS_DECL_NSIDIRECTORYSERVICEPROVIDER

  friend nsresult NS_NewMyProfileDirServiceProvider(ProfileDirServiceProvider**);

public:

   /**
    * SetProfileDir
    *
    * @param aProfileDir   The directory containing the profile files.
    *                      It does not need to exist before calling this
    *                      method. If it does not, it will be created and
    *                      defaults will be copied to it. 
    */

   virtual nsresult        SetProfileDir(nsIFile* aProfileDir);

  /**
   * Register
   *
   * Convenience method to register the provider with directory service.
   * The service holds strong references to registered providers so consumers
   * don't need to hold a reference to this object after calling Register().
   */

  virtual nsresult         Register();

  /**
   * Shutdown
   *
   * This method must be called before shutting down XPCOM if this object
   * was created with aNotifyObservers == PR_TRUE. If this object was
   * created with aNotifyObservers == PR_FALSE, this method is a no-op.
   */

  virtual nsresult         Shutdown();

protected:
                           ProfileDirServiceProvider();
   virtual                 ~ProfileDirServiceProvider();

  nsresult                 InitProfileDir(nsIFile* profileDir);
  nsresult                 EnsureProfileFileExists(nsIFile *aFile, nsIFile *destDir);

protected:

  nsCOMPtr<nsIFile>        mProfileDir;
};


// --------------------------------------------------------------------------------------

/**
 * Global method to create an instance of ProfileDirServiceProvider
 *
 * @param aNotifyObservers    If true, will send out profile startup
 *                            notifications when the profile directory is set.
 *                            See nsIProfileChangeStatus.
 */
 
nsresult NS_NewMyProfileDirServiceProvider(ProfileDirServiceProvider** aProvider);