Move TTS extension API to chrome/browser/speech/

chrome/browser/extensions/extension_tts_api_win.cc

Index: chrome/browser/extensions/extension_tts_api_win.cc
diff --git a/chrome/browser/extensions/extension_tts_api_win.cc b/chrome/browser/extensions/extension_tts_api_win.cc
deleted file mode 100644
index b4bbf81e33212cc10411dcb183879f6168d75dd5..0000000000000000000000000000000000000000
--- a/chrome/browser/extensions/extension_tts_api_win.cc
+++ /dev/null
@@ -1,223 +0,0 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include <math.h>
-#include <sapi.h>
-
-#include "base/memory/singleton.h"
-#include "base/string_number_conversions.h"
-#include "base/utf_string_conversions.h"
-#include "base/values.h"
-#include "base/win/scoped_comptr.h"
-#include "chrome/browser/extensions/extension_tts_api_controller.h"
-#include "chrome/browser/extensions/extension_tts_api_platform.h"
-
-class ExtensionTtsPlatformImplWin : public ExtensionTtsPlatformImpl {
- public:
-  virtual bool PlatformImplAvailable() {
-    return true;
-  }
-
-  virtual bool Speak(
-      int utterance_id,
-      const std::string& utterance,
-      const std::string& lang,
-      const UtteranceContinuousParameters& params);
-
-  virtual bool StopSpeaking();
-
-  virtual bool IsSpeaking();
-
-  virtual bool SendsEvent(TtsEventType event_type);
-
-  // Get the single instance of this class.
-  static ExtensionTtsPlatformImplWin* GetInstance();
-
-  static void __stdcall SpeechEventCallback(WPARAM w_param, LPARAM l_param);
-
- private:
-  ExtensionTtsPlatformImplWin();
-  virtual ~ExtensionTtsPlatformImplWin() {}
-
-  void OnSpeechEvent();
-
-  base::win::ScopedComPtr<ISpVoice> speech_synthesizer_;
-
-  // These apply to the current utterance only.
-  std::wstring utterance_;
-  int utterance_id_;
-  int prefix_len_;
-  ULONG stream_number_;
-  int char_position_;
-
-  friend struct DefaultSingletonTraits<ExtensionTtsPlatformImplWin>;
-
-  DISALLOW_COPY_AND_ASSIGN(ExtensionTtsPlatformImplWin);
-};
-
-// static
-ExtensionTtsPlatformImpl* ExtensionTtsPlatformImpl::GetInstance() {
-  return ExtensionTtsPlatformImplWin::GetInstance();
-}
-
-bool ExtensionTtsPlatformImplWin::Speak(
-    int utterance_id,
-    const std::string& src_utterance,
-    const std::string& lang,
-    const UtteranceContinuousParameters& params) {
-  std::wstring prefix;
-  std::wstring suffix;
-
-  if (!speech_synthesizer_)
-    return false;
-
-  // TODO(dmazzoni): support languages other than the default: crbug.com/88059
-
-  if (params.rate >= 0.0) {
-    // Map our multiplicative range of 0.1x to 10.0x onto Microsoft's
-    // linear range of -10 to 10:
-    //   0.1 -> -10
-    //   1.0 -> 0
-    //  10.0 -> 10
-    speech_synthesizer_->SetRate(static_cast<int32>(10 * log10(params.rate)));
-  }
-
-  if (params.pitch >= 0.0) {
-    // The TTS api allows a range of -10 to 10 for speech pitch.
-    // TODO(dtseng): cleanup if we ever use any other properties that
-    // require xml.
-    std::wstring pitch_value =
-        base::IntToString16(static_cast<int>(params.pitch * 10 - 10));
-    prefix = L"<pitch absmiddle=\"" + pitch_value + L"\">";
-    suffix = L"</pitch>";
-  }
-
-  if (params.volume >= 0.0) {
-    // The TTS api allows a range of 0 to 100 for speech volume.
-    speech_synthesizer_->SetVolume(static_cast<uint16>(params.volume * 100));
-  }
-
-  // TODO(dmazzoni): convert SSML to SAPI xml. http://crbug.com/88072
-
-  utterance_ = UTF8ToWide(src_utterance);
-  utterance_id_ = utterance_id;
-  char_position_ = 0;
-  std::wstring merged_utterance = prefix + utterance_ + suffix;
-  prefix_len_ = prefix.size();
-
-  HRESULT result = speech_synthesizer_->Speak(
-      merged_utterance.c_str(),
-      SPF_ASYNC,
-      &stream_number_);
-  return (result == S_OK);
-}
-
-bool ExtensionTtsPlatformImplWin::StopSpeaking() {
-  if (speech_synthesizer_) {
-    // Clear the stream number so that any further events relating to this
-    // utterance are ignored.
-    stream_number_ = 0;
-
-    if (IsSpeaking()) {
-      // Stop speech by speaking the empty string with the purge flag.
-      speech_synthesizer_->Speak(L"", SPF_ASYNC | SPF_PURGEBEFORESPEAK, NULL);
-    }
-  }
-  return true;
-}
-
-bool ExtensionTtsPlatformImplWin::IsSpeaking() {
-  if (speech_synthesizer_) {
-    SPVOICESTATUS status;
-    HRESULT result = speech_synthesizer_->GetStatus(&status, NULL);
-    if (result == S_OK) {
-      if (status.dwRunningState == 0 ||  // 0 == waiting to speak
-          status.dwRunningState == SPRS_IS_SPEAKING) {
-        return true;
-      }
-    }
-  }
-  return false;
-}
-
-bool ExtensionTtsPlatformImplWin::SendsEvent(TtsEventType event_type) {
-  return (event_type == TTS_EVENT_START ||
-          event_type == TTS_EVENT_END ||
-          event_type == TTS_EVENT_MARKER ||
-          event_type == TTS_EVENT_WORD ||
-          event_type == TTS_EVENT_SENTENCE);
-}
-
-void ExtensionTtsPlatformImplWin::OnSpeechEvent() {
-  ExtensionTtsController* controller = ExtensionTtsController::GetInstance();
-  SPEVENT event;
-  while (S_OK == speech_synthesizer_->GetEvents(1, &event, NULL)) {
-    if (event.ulStreamNum != stream_number_)
-      continue;
-
-    switch (event.eEventId) {
-    case SPEI_START_INPUT_STREAM:
-      controller->OnTtsEvent(
-          utterance_id_, TTS_EVENT_START, 0, std::string());
-      break;
-    case SPEI_END_INPUT_STREAM:
-      char_position_ = utterance_.size();
-      controller->OnTtsEvent(
-          utterance_id_, TTS_EVENT_END, char_position_, std::string());
-      break;
-    case SPEI_TTS_BOOKMARK:
-      controller->OnTtsEvent(
-          utterance_id_, TTS_EVENT_MARKER, char_position_, std::string());
-      break;
-    case SPEI_WORD_BOUNDARY:
-      char_position_ = static_cast<ULONG>(event.lParam) - prefix_len_;
-      controller->OnTtsEvent(
-          utterance_id_, TTS_EVENT_WORD, char_position_,
-          std::string());
-      break;
-    case SPEI_SENTENCE_BOUNDARY:
-      char_position_ = static_cast<ULONG>(event.lParam) - prefix_len_;
-      controller->OnTtsEvent(
-          utterance_id_, TTS_EVENT_SENTENCE, char_position_,
-          std::string());
-      break;
-    }
-  }
-}
-
-ExtensionTtsPlatformImplWin::ExtensionTtsPlatformImplWin()
-  : speech_synthesizer_(NULL),
-    utterance_id_(0),
-    prefix_len_(0),
-    stream_number_(0),
-    char_position_(0) {
-  CoCreateInstance(
-      CLSID_SpVoice,
-      NULL,
-      CLSCTX_SERVER,
-      IID_ISpVoice,
-      reinterpret_cast<void**>(&speech_synthesizer_));
-  if (speech_synthesizer_) {
-    ULONGLONG event_mask =
-        SPFEI(SPEI_START_INPUT_STREAM) |
-        SPFEI(SPEI_TTS_BOOKMARK) |
-        SPFEI(SPEI_WORD_BOUNDARY) |
-        SPFEI(SPEI_SENTENCE_BOUNDARY) |
-        SPFEI(SPEI_END_INPUT_STREAM);
-    speech_synthesizer_->SetInterest(event_mask, event_mask);
-    speech_synthesizer_->SetNotifyCallbackFunction(
-        ExtensionTtsPlatformImplWin::SpeechEventCallback, 0, 0);
-  }
-}
-
-// static
-ExtensionTtsPlatformImplWin* ExtensionTtsPlatformImplWin::GetInstance() {
-  return Singleton<ExtensionTtsPlatformImplWin>::get();
-}
-
-// static
-void ExtensionTtsPlatformImplWin::SpeechEventCallback(
-    WPARAM w_param, LPARAM l_param) {
-  GetInstance()->OnSpeechEvent();
-}