The Tor Browser: widget/windows/nsSound.cpp@6474c204b198 (annotated)

widget/windows/nsSound.cpp@6474c204b198 (annotated)

widget/windows/nsSound.cpp

Wed, 31 Dec 2014 06:09:35 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Wed, 31 Dec 2014 06:09:35 +0100
changeset 0: 6474c204b198
permissions: -rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
  *
  * This Source Code Form is subject to the terms of the Mozilla Public
  * License, v. 2.0. If a copy of the MPL was not distributed with this
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 #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 "prlog.h"
 #include "prtime.h"
 #include "prprf.h"
 #include "prmem.h"
 #include "nsNativeCharsetUtils.h"
 #include "nsThreadUtils.h"
 #ifdef PR_LOGGING
 PRLogModuleInfo* gWin32SoundLog = nullptr;
 #endif
 class nsSoundPlayer: public nsRunnable {
 public:
   nsSoundPlayer(nsSound *aSound, const wchar_t* aSoundName) :
     mSoundName(aSoundName), mSound(aSound)
   {
     Init();
   }
   nsSoundPlayer(nsSound *aSound, const nsAString& aSoundName) :
     mSoundName(aSoundName), mSound(aSound)
   {
     Init();
   }
   NS_DECL_NSIRUNNABLE
 protected:
   nsString mSoundName;
   nsSound *mSound; // Strong, but this will be released from SoundReleaser.
   nsCOMPtr<nsIThread> mThread;
   void Init()
   {
     NS_GetCurrentThread(getter_AddRefs(mThread));
     NS_ASSERTION(mThread, "failed to get current thread");
     NS_IF_ADDREF(mSound);
   }
   class SoundReleaser: public nsRunnable {
   public:
     SoundReleaser(nsSound* aSound) :
       mSound(aSound)
     {
     }
     NS_DECL_NSIRUNNABLE
   protected:
     nsSound *mSound;
   };
 };
 NS_IMETHODIMP
 nsSoundPlayer::Run()
 {
   PR_SetCurrentThreadName("Play Sound");
   NS_PRECONDITION(!mSoundName.IsEmpty(), "Sound name should not be empty");
   ::PlaySoundW(mSoundName.get(), nullptr,
                SND_NODEFAULT | SND_ALIAS | SND_ASYNC);
   nsCOMPtr<nsIRunnable> releaser = new SoundReleaser(mSound);
   // Don't release nsSound from here, because here is not an owning thread of
   // the nsSound. nsSound must be released in its owning thread.
   mThread->Dispatch(releaser, NS_DISPATCH_NORMAL);
   return NS_OK;
 }
 NS_IMETHODIMP
 nsSoundPlayer::SoundReleaser::Run()
 {
   mSound->ShutdownOldPlayerThread();
   NS_IF_RELEASE(mSound);
   return NS_OK;
 }
 #ifndef SND_PURGE
 // Not available on Windows CE, and according to MSDN
 // doesn't do anything on recent windows either.
 #define SND_PURGE 0
 #endif
 NS_IMPL_ISUPPORTS(nsSound, nsISound, nsIStreamLoaderObserver)
 nsSound::nsSound()
 {
 #ifdef PR_LOGGING
     if (!gWin32SoundLog) {
       gWin32SoundLog = PR_NewLogModule("nsSound");
     }
 #endif
     mLastSound = nullptr;
 }
 nsSound::~nsSound()
 {
   NS_ASSERTION(!mPlayerThread, "player thread is not null but should be");
   PurgeLastSound();
 }
 void nsSound::ShutdownOldPlayerThread()
 {
   if (mPlayerThread) {
     mPlayerThread->Shutdown();
     mPlayerThread = nullptr;
   }
 }
 void nsSound::PurgeLastSound()
 {
   if (mLastSound) {
     // Halt any currently playing sound.
     ::PlaySound(nullptr, nullptr, SND_PURGE);
     // Now delete the buffer.
     free(mLastSound);
     mLastSound = nullptr;
   }
 }
 NS_IMETHODIMP nsSound::Beep()
 {
   ::MessageBeep(0);
   return NS_OK;
 }
 NS_IMETHODIMP nsSound::OnStreamComplete(nsIStreamLoader *aLoader,
                                         nsISupports *context,
                                         nsresult aStatus,
                                         uint32_t dataLen,
                                         const uint8_t *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) {
           nsAutoCString uriSpec;
           uri->GetSpec(uriSpec);
           PR_LOG(gWin32SoundLog, PR_LOG_ALWAYS,
                  ("Failed to load %s\n", uriSpec.get()));
         }
       }
     }
 #endif
     return aStatus;
   }
   ShutdownOldPlayerThread();
   PurgeLastSound();
   if (data && dataLen > 0) {
     DWORD flags = SND_MEMORY | SND_NODEFAULT;
     // We try to make a copy so we can play it async.
     mLastSound = (uint8_t *) 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);
   PR_LOG(gWin32SoundLog, PR_LOG_ALWAYS,
          ("%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(nullptr, nullptr, SND_PURGE);
   return NS_OK;
 }
 NS_IMETHODIMP nsSound::PlaySystemSound(const nsAString &aSoundAlias)
 {
   ShutdownOldPlayerThread();
   PurgeLastSound();
   if (!NS_IsMozAliasSound(aSoundAlias)) {
     if (aSoundAlias.IsEmpty())
       return NS_OK;
     nsCOMPtr<nsIRunnable> player = new nsSoundPlayer(this, aSoundAlias);
     NS_ENSURE_TRUE(player, NS_ERROR_OUT_OF_MEMORY);
     nsresult rv = NS_NewThread(getter_AddRefs(mPlayerThread), player);
     NS_ENSURE_SUCCESS(rv, rv);
     return NS_OK;
   }
   NS_WARNING("nsISound::playSystemSound is called with \"_moz_\" events, they are obsolete, use nsISound::playEventSound instead");
   uint32_t eventId;
   if (aSoundAlias.Equals(NS_SYSSOUND_MAIL_BEEP))
     eventId = EVENT_NEW_MAIL_RECEIVED;
   else if (aSoundAlias.Equals(NS_SYSSOUND_CONFIRM_DIALOG))
     eventId = EVENT_CONFIRM_DIALOG_OPEN;
   else if (aSoundAlias.Equals(NS_SYSSOUND_ALERT_DIALOG))
     eventId = EVENT_ALERT_DIALOG_OPEN;
   else if (aSoundAlias.Equals(NS_SYSSOUND_MENU_EXECUTE))
     eventId = EVENT_MENU_EXECUTE;
   else if (aSoundAlias.Equals(NS_SYSSOUND_MENU_POPUP))
     eventId = EVENT_MENU_POPUP;
   else
     return NS_OK;
   return PlayEventSound(eventId);
 }
 NS_IMETHODIMP nsSound::PlayEventSound(uint32_t aEventId)
 {
   ShutdownOldPlayerThread();
   PurgeLastSound();
   const wchar_t *sound = nullptr;
   switch (aEventId) {
     case EVENT_NEW_MAIL_RECEIVED:
       sound = L"MailBeep";
       break;
     case EVENT_ALERT_DIALOG_OPEN:
       sound = L"SystemExclamation";
       break;
     case EVENT_CONFIRM_DIALOG_OPEN:
       sound = L"SystemQuestion";
       break;
     case EVENT_MENU_EXECUTE:
       sound = L"MenuCommand";
       break;
     case EVENT_MENU_POPUP:
       sound = L"MenuPopup";
       break;
     case EVENT_EDITOR_MAX_LEN:
       sound = L".Default";
       break;
     default:
       // Win32 plays no sounds at NS_SYSSOUND_PROMPT_DIALOG and
       // NS_SYSSOUND_SELECT_DIALOG.
       return NS_OK;
   }
   NS_ASSERTION(sound, "sound is null");
   nsCOMPtr<nsIRunnable> player = new nsSoundPlayer(this, sound);
   NS_ENSURE_TRUE(player, NS_ERROR_OUT_OF_MEMORY);
   nsresult rv = NS_NewThread(getter_AddRefs(mPlayerThread), player);
   NS_ENSURE_SUCCESS(rv, rv);
   return NS_OK;
 }

The Tor Browser / annotate

widget/windows/nsSound.cpp@6474c204b198 (annotated)

widget/windows/nsSound.cpp