gecko/widget/src/windows/nsSound.cpp

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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 * ***** 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.org code.
 *
 * The Initial Developer of the Original Code is
 * Netscape Communications Corporation.
 * Portions created by the Initial Developer are Copyright (C) 2000
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *   Stuart Parmenter <pavlov@netscape.com>
 *
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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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#include "nscore.h"
#include "plstr.h"
#include <stdio.h>
#include "nsString.h"
#include <windows.h>

// mmsystem.h is needed to build with WIN32_LEAN_AND_MEAN
#include <mmsystem.h>

#include "nsSound.h"
#include "nsIURL.h"
#include "nsNetUtil.h"
#include "nsCRT.h"

#include "nsNativeCharsetUtils.h"

NS_IMPL_ISUPPORTS2(nsSound, nsISound, nsIStreamLoaderObserver)


nsSound::nsSound()
{
  mLastSound = nsnull;
}

nsSound::~nsSound()
{
  PurgeLastSound();
}

void nsSound::PurgeLastSound() {
  if (mLastSound) {
    // Purge the current sound buffer.
    ::PlaySound(nsnull, nsnull, SND_PURGE); // This call halts the sound if it was still playing.

    // Now delete the buffer.
    free(mLastSound);
    mLastSound = nsnull;
  }
}

NS_IMETHODIMP nsSound::Beep()
{
  ::MessageBeep(0);

  return NS_OK;
}

NS_IMETHODIMP nsSound::OnStreamComplete(nsIStreamLoader *aLoader,
                                        nsISupports *context,
                                        nsresult aStatus,
                                        PRUint32 dataLen,
                                        const PRUint8 *data)
{
  // print a load error on bad status
  if (NS_FAILED(aStatus)) {
#ifdef DEBUG
    if (aLoader) {
      nsCOMPtr<nsIRequest> request;
      nsCOMPtr<nsIChannel> channel;
      aLoader->GetRequest(getter_AddRefs(request));
      if (request)
          channel = do_QueryInterface(request);
      if (channel) {
        nsCOMPtr<nsIURI> uri;
        channel->GetURI(getter_AddRefs(uri));
        if (uri) {
          nsCAutoString uriSpec;
          uri->GetSpec(uriSpec);
          printf("Failed to load %s\n", uriSpec.get());
        }
      }
    }
#endif
    return aStatus;
  }

  PurgeLastSound();

  if (data && dataLen > 0) {
    DWORD flags = SND_MEMORY | SND_NODEFAULT;
    // We try to make a copy so we can play it async.
    mLastSound = (PRUint8 *) malloc(dataLen);
    if (mLastSound) {
      memcpy(mLastSound, data, dataLen);
      data = mLastSound;
      flags |= SND_ASYNC;
    }
    ::PlaySoundW(reinterpret_cast<LPCWSTR>(data), 0, flags);
  }

  return NS_OK;
}

NS_IMETHODIMP nsSound::Play(nsIURL *aURL)
{
  nsresult rv;

#ifdef DEBUG_SOUND
  char *url;
  aURL->GetSpec(&url);
  printf("%s\n", url);
#endif

  nsCOMPtr<nsIStreamLoader> loader;
  rv = NS_NewStreamLoader(getter_AddRefs(loader), aURL, this);

  return rv;
}


NS_IMETHODIMP nsSound::Init()
{
  // This call halts a sound if it was still playing.
  // We have to use the sound library for something to make sure
  // it is initialized.
  // If we wait until the first sound is played, there will
  // be a time lag as the library gets loaded.
  ::PlaySound(nsnull, nsnull, SND_PURGE); 

  return NS_OK;
}


NS_IMETHODIMP nsSound::PlaySystemSound(const nsAString &aSoundAlias)
{
  PurgeLastSound();

  if (!NS_IsMozAliasSound(aSoundAlias)) {
    ::PlaySoundW(PromiseFlatString(aSoundAlias).get(), nsnull,
                 SND_NODEFAULT | SND_ALIAS | SND_ASYNC);
    return NS_OK;
  }

  // Win32 plays no sounds at NS_SYSSOUND_PROMPT_DIALOG and
  // NS_SYSSOUND_SELECT_DIALOG.
  const wchar_t *sound = nsnull;
  if (aSoundAlias.Equals(NS_SYSSOUND_MAIL_BEEP))
    sound = L"MailBeep";
  else if (aSoundAlias.Equals(NS_SYSSOUND_CONFIRM_DIALOG))
    sound = L"SystemQuestion";
  else if (aSoundAlias.Equals(NS_SYSSOUND_ALERT_DIALOG))
    sound = L"SystemExclamation";
  else if (aSoundAlias.Equals(NS_SYSSOUND_MENU_EXECUTE))
    sound = L"MenuCommand";
  else if (aSoundAlias.Equals(NS_SYSSOUND_MENU_POPUP))
    sound = L"MenuPopup";

  if (sound)
    ::PlaySoundW(sound, nsnull, SND_NODEFAULT | SND_ALIAS | SND_ASYNC);

  return NS_OK;
}