Mozilla/mozilla/xpinstall/src/nsTopProgressNotifier.cpp

/* -*- Mode: C; tab-width: 4; 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/
 *
 * 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, released
 * March 31, 1998.
 *
 * The Initial Developer of the Original Code is
 * Netscape Communications Corporation.
 * Portions created by the Initial Developer are Copyright (C) 1998
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   Douglas Turner <dougt@netscape.com>
 *   Daniel Veditz <dveditz@netscape.com>
 *   Pierre Phaneuf <pp@ludusdesign.com>
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either of 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
 * under the terms of either the GPL or the LGPL, and not to allow others to
 * use your version of this file under the terms of the MPL, indicate your
 * decision by deleting the provisions above and replace them with the notice
 * and other provisions required by the GPL or the LGPL. If you do not delete
 * the provisions above, a recipient may use your version of this file under
 * the terms of any one of the MPL, the GPL or the LGPL.
 *
 * ***** END LICENSE BLOCK ***** */

#include "nsTopProgressNotifier.h"

nsTopProgressListener::nsTopProgressListener()
{
    mListeners = new nsVoidArray();
    mActive = 0;
    mLock = PR_NewLock();
}

nsTopProgressListener::~nsTopProgressListener()
{
    if (mLock) PR_Lock(mLock);

    if (mListeners)
    {
        PRInt32 i=0;
        for (; i < mListeners->Count(); i++)
        {
            nsIXPIListener* element = (nsIXPIListener*)mListeners->ElementAt(i);
            NS_IF_RELEASE(element);
        }

        mListeners->Clear();
        delete (mListeners);
    }

    if (mLock)
    {
        PR_Unlock(mLock);
        PR_DestroyLock(mLock);
    }
}


NS_IMPL_THREADSAFE_ISUPPORTS1(nsTopProgressListener, nsIXPIListener)


long
nsTopProgressListener::RegisterListener(nsIXPIListener * newListener)
{
    if (mLock) PR_Lock(mLock);
    NS_IF_ADDREF( newListener );
    long retval = mListeners->AppendElement( newListener );
    if (mLock) PR_Unlock(mLock);
    return retval;
}


void
nsTopProgressListener::UnregisterListener(long id)
{
    if (mLock) PR_Lock(mLock);
    if (id < mListeners->Count())
    {
        nsIXPIListener *item = (nsIXPIListener*)mListeners->ElementAt(id);
        mListeners->ReplaceElementAt(nsnull, id);
        NS_IF_RELEASE(item);
    }
    if (mLock) PR_Unlock(mLock);
}



NS_IMETHODIMP
nsTopProgressListener::OnInstallStart(const PRUnichar *URL)
{
    if (mActive)
        mActive->OnInstallStart(URL);

    if (mListeners)
    {
        PRInt32 i=0;
        for (; i < mListeners->Count(); i++)
        {
            nsIXPIListener* element = (nsIXPIListener*)mListeners->ElementAt(i);
            if (element != NULL)
                element->OnInstallStart(URL);
        }
    }

    return NS_OK;
}

NS_IMETHODIMP
nsTopProgressListener::OnPackageNameSet(const PRUnichar *URL, const PRUnichar* UIPackageName, const PRUnichar* aVersion)
{
    if (mActive)
        mActive->OnPackageNameSet(URL, UIPackageName, aVersion);

    if (mListeners)
    {
        PRInt32 i=0;
        for (; i < mListeners->Count(); i++)
        {
            nsIXPIListener* element = (nsIXPIListener*)mListeners->ElementAt(i);
            if (element != NULL)
                element->OnPackageNameSet(URL, UIPackageName, aVersion);
        }
    }
    return NS_OK;
}

NS_IMETHODIMP
nsTopProgressListener::OnItemScheduled( const PRUnichar* message )
{
    long rv = 0;

    if (mActive)
        mActive->OnItemScheduled( message );

    if (mListeners)
    {
        PRInt32 i=0;
        for (; i < mListeners->Count(); i++)
        {
            nsIXPIListener* element = (nsIXPIListener*)mListeners->ElementAt(i);
            if (element != NULL)
                element->OnItemScheduled( message );
        }
    }

    return rv;
}

NS_IMETHODIMP
nsTopProgressListener::OnFinalizeProgress( const PRUnichar* message, PRInt32 itemNum, PRInt32 totNum )
{
    if (mActive)
        mActive->OnFinalizeProgress( message, itemNum, totNum );

    if (mListeners)
    {
        PRInt32 i=0;
        for (; i < mListeners->Count(); i++)
        {
            nsIXPIListener* element = (nsIXPIListener*)mListeners->ElementAt(i);
            if (element != NULL)
                element->OnFinalizeProgress( message, itemNum, totNum );
        }
    }
    return NS_OK;
}

NS_IMETHODIMP
nsTopProgressListener::OnInstallDone(const PRUnichar *URL, PRInt32 status)
{
    if (mActive)
        mActive->OnInstallDone(URL, status);

    if (mListeners)
    {
        PRInt32 i=0;
        for (; i < mListeners->Count(); i++)
        {
            nsIXPIListener* element = (nsIXPIListener*)mListeners->ElementAt(i);
            if (element != NULL)
                element->OnInstallDone(URL,status);
        }
    }
   return NS_OK;
}

NS_IMETHODIMP
nsTopProgressListener::OnLogComment(const PRUnichar* comment)
{
    if (mActive)
        mActive->OnLogComment(comment);

   if (mListeners)
    {
        PRInt32 i=0;
        for (; i < mListeners->Count(); i++)
        {
            nsIXPIListener* element = (nsIXPIListener*)mListeners->ElementAt(i);
            if (element != NULL)
                element->OnLogComment(comment);
        }
    }
   return NS_OK;
}