profile/dirserviceprovider/public/nsProfileDirServiceProvider.h
author Mike Hommey <mh@glandium.org>
Fri, 25 Feb 2011 12:53:36 +0100
changeset 69247 4820d39b86d725bd2770b4b37ccbb8aca2c4c928
parent 1 9b2a99adc05e53cd4010de512f50118594756650
child 77799 e7854b4d29ba905ae3994f821b160c989bac4260
permissions -rw-r--r--
Bug 620931 part 3 - Allow GRE and XUL application to use omni.jar independently. r=bsmedberg,r=mwu We now store two independent locations for an omni.jar, allowing GRE/XRE and XUL application to each have their own omni.jar. And since xulrunner setups are very independent from the XUL applications, we implement support for both omni.jar and non omni.jar cases in the same runtime, with the side effect of allowing to switch from one to the other manually without rebuilding the binaries. We let the mozilla::Omnijar API handle both cases, so that callers don't need too much work to support them. We also make the preferences service load the same set of preferences in all the various cases (unified vs. separate, omni.jar vs. no omni.jar). The child process launcher for IPC is modified to pass the base directories needed for the mozilla::Omnijar API initialization in the child process. Finally, the startupcache file name canonicalization is modified to separate APP and GRE resources.

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * 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
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
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 * 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.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 <ccarlen@netscape.com>
 *
 * Alternatively, the contents of this file may be used under the terms of
 * 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"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
 * of those above. If you wish to allow use of your version of this file only
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// Interfaces Needed
#include "nsIDirectoryService.h"
#include "nsILocalFile.h"

#include "nsCOMPtr.h"
#include "nsDirectoryServiceUtils.h"
#include "nsComponentManagerUtils.h"
#include "nsServiceManagerUtils.h"

#ifdef MOZILLA_INTERNAL_API
#include "nsString.h"
#else
#include "nsEmbedString.h"
#endif

// Forward Declarations
class nsProfileLock;

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

class nsProfileDirServiceProvider: public nsIDirectoryServiceProvider
{  
  NS_DECL_ISUPPORTS
  NS_DECL_NSIDIRECTORYSERVICEPROVIDER

  friend nsresult NS_NewProfileDirServiceProvider(PRBool, nsProfileDirServiceProvider**);

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. 
    * @param aLocalProfileDir
    *                      Directory for local profile data, e.g. Cache.
    *                      If null, aProfileDir will be used for this purpose.
    */

   virtual nsresult        SetProfileDir(nsIFile* aProfileDir,
                                         nsIFile* aLocalProfileDir = nsnull);

  /**
   * 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:
                           nsProfileDirServiceProvider(PRBool aNotifyObservers = PR_TRUE);
   virtual                 ~nsProfileDirServiceProvider();

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

protected:

  nsCOMPtr<nsIFile>        mProfileDir;
  nsCOMPtr<nsIFile>        mLocalProfileDir;
  nsProfileLock*           mProfileDirLock;
  PRPackedBool             mNotifyObservers;

  PRPackedBool             mSharingEnabled;
#ifndef MOZILLA_INTERNAL_API
  nsEmbedString            mNonSharedDirName;
#else
  nsString                 mNonSharedDirName;
#endif
  nsCOMPtr<nsIFile>        mNonSharedProfileDir;
};


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

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