chrome/browser/speech/speech_recognition_bubble_controller.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "chrome/browser/speech/speech_recognition_bubble_controller.h"
   6
   7 #include "base/bind.h"
   8 #include "chrome/browser/tab_contents/tab_util.h"
   9 #include "content/public/browser/browser_thread.h"
  10 #include "content/public/browser/notification_registrar.h"
  11 #include "content/public/browser/notification_source.h"
  12 #include "content/public/browser/notification_types.h"
  13 #include "content/public/browser/render_process_host.h"
  14 #include "content/public/browser/render_view_host.h"
  15 #include "content/public/browser/web_contents.h"
  16
  17 using content::BrowserThread;
  18 using content::WebContents;
  19
  20 namespace {
  21 const int kInvalidSessionId = 0;
  22 }
  23
  24 namespace speech {
  25
  26 SpeechRecognitionBubbleController::SpeechRecognitionBubbleController(
  27     Delegate* delegate)
  28     : delegate_(delegate),
  29       last_request_issued_(REQUEST_CLOSE),
  30       current_bubble_session_id_(kInvalidSessionId),
  31       current_bubble_render_process_id_(0),
  32       current_bubble_render_view_id_(0) {
  33 }
  34
  35 SpeechRecognitionBubbleController::~SpeechRecognitionBubbleController() {
  36   DCHECK_EQ(kInvalidSessionId, current_bubble_session_id_);
  37 }
  38
  39 void SpeechRecognitionBubbleController::CreateBubble(
  40     int session_id,
  41     int render_process_id,
  42     int render_view_id,
  43     const gfx::Rect& element_rect) {
  44   {
  45     base::AutoLock auto_lock(lock_);
  46     current_bubble_session_id_ = session_id;
  47     current_bubble_render_process_id_ = render_process_id;
  48     current_bubble_render_view_id_ = render_view_id;
  49   }
  50
  51   UIRequest request(REQUEST_CREATE);
  52   request.render_process_id = render_process_id;
  53   request.render_view_id = render_view_id;
  54   request.element_rect = element_rect;
  55   ProcessRequestInUiThread(request);
  56 }
  57
  58 void SpeechRecognitionBubbleController::SetBubbleRecordingMode() {
  59   ProcessRequestInUiThread(UIRequest(REQUEST_SET_RECORDING_MODE));
  60 }
  61
  62 void SpeechRecognitionBubbleController::SetBubbleRecognizingMode() {
  63   ProcessRequestInUiThread(UIRequest(REQUEST_SET_RECOGNIZING_MODE));
  64 }
  65
  66 void SpeechRecognitionBubbleController::SetBubbleMessage(
  67     const base::string16& text) {
  68   UIRequest request(REQUEST_SET_MESSAGE);
  69   request.message = text;
  70   ProcessRequestInUiThread(request);
  71 }
  72
  73 bool SpeechRecognitionBubbleController::IsShowingMessage() const {
  74   return last_request_issued_ == REQUEST_SET_MESSAGE;
  75 }
  76
  77 void SpeechRecognitionBubbleController::SetBubbleInputVolume(
  78     float volume,
  79     float noise_volume) {
  80   UIRequest request(REQUEST_SET_INPUT_VOLUME);
  81   request.volume = volume;
  82   request.noise_volume = noise_volume;
  83   ProcessRequestInUiThread(request);
  84 }
  85
  86 void SpeechRecognitionBubbleController::CloseBubble() {
  87   {
  88     base::AutoLock auto_lock(lock_);
  89     current_bubble_session_id_ = kInvalidSessionId;
  90   }
  91   ProcessRequestInUiThread(UIRequest(REQUEST_CLOSE));
  92 }
  93
  94 void SpeechRecognitionBubbleController::CloseBubbleForRenderViewOnUIThread(
  95     int render_process_id, int render_view_id) {
  96   {
  97     base::AutoLock auto_lock(lock_);
  98     if (current_bubble_session_id_ == kInvalidSessionId ||
  99         current_bubble_render_process_id_ != render_process_id ||
 100         current_bubble_render_view_id_ != render_view_id) {
 101       return;
 102     }
 103     current_bubble_session_id_ = kInvalidSessionId;
 104   }
 105   ProcessRequestInUiThread(UIRequest(REQUEST_CLOSE));
 106 }
 107
 108 int SpeechRecognitionBubbleController::GetActiveSessionID() {
 109   base::AutoLock auto_lock(lock_);
 110   return current_bubble_session_id_;
 111 }
 112
 113 void SpeechRecognitionBubbleController::InfoBubbleButtonClicked(
 114     SpeechRecognitionBubble::Button button) {
 115   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 116   BrowserThread::PostTask(BrowserThread::IO, FROM_HERE,
 117       base::Bind(
 118           &SpeechRecognitionBubbleController::InvokeDelegateButtonClicked, this,
 119           button));
 120 }
 121
 122 void SpeechRecognitionBubbleController::InfoBubbleFocusChanged() {
 123   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 124   BrowserThread::PostTask(BrowserThread::IO, FROM_HERE,
 125       base::Bind(&SpeechRecognitionBubbleController::InvokeDelegateFocusChanged,
 126                  this));
 127 }
 128
 129 void SpeechRecognitionBubbleController::InvokeDelegateButtonClicked(
 130     SpeechRecognitionBubble::Button button) {
 131   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
 132   {
 133     base::AutoLock auto_lock(lock_);
 134     if (kInvalidSessionId == current_bubble_session_id_)
 135       return;
 136   }
 137   delegate_->InfoBubbleButtonClicked(current_bubble_session_id_, button);
 138 }
 139
 140 void SpeechRecognitionBubbleController::InvokeDelegateFocusChanged() {
 141   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
 142   {
 143     base::AutoLock auto_lock(lock_);
 144     if (kInvalidSessionId == current_bubble_session_id_)
 145       return;
 146   }
 147   delegate_->InfoBubbleFocusChanged(current_bubble_session_id_);
 148 }
 149
 150 void SpeechRecognitionBubbleController::ProcessRequestInUiThread(
 151     const UIRequest& request) {
 152   if (!BrowserThread::CurrentlyOn(BrowserThread::UI)) {
 153     last_request_issued_ = request.type;
 154     BrowserThread::PostTask(BrowserThread::UI, FROM_HERE,
 155         base::Bind(&SpeechRecognitionBubbleController::ProcessRequestInUiThread,
 156                    this, request));
 157     return;
 158   }
 159
 160   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 161
 162   // In the case of a tab closed or crashed, the bubble can have been destroyed
 163   // earlier on the UI thread, while other tasks were being enqueued from the IO
 164   // to the UI thread. Simply return in such cases.
 165   if (request.type != REQUEST_CREATE && !bubble_.get())
 166     return;
 167
 168   switch (request.type) {
 169     case REQUEST_CREATE:
 170       bubble_.reset(SpeechRecognitionBubble::Create(
 171           tab_util::GetWebContentsByID(request.render_process_id,
 172                                        request.render_view_id),
 173           this, request.element_rect));
 174
 175       if (!bubble_.get()) {
 176         // Could be null if tab or display rect were invalid.
 177         // Simulate the cancel button being clicked to inform the delegate.
 178         BrowserThread::PostTask(BrowserThread::IO, FROM_HERE,
 179             base::Bind(
 180                 &SpeechRecognitionBubbleController::InvokeDelegateButtonClicked,
 181                 this, SpeechRecognitionBubble::BUTTON_CANCEL));
 182         return;
 183       }
 184       bubble_->Show();
 185       bubble_->SetWarmUpMode();
 186       break;
 187     case REQUEST_SET_RECORDING_MODE:
 188       bubble_->SetRecordingMode();
 189       break;
 190     case REQUEST_SET_RECOGNIZING_MODE:
 191       bubble_->SetRecognizingMode();
 192       break;
 193     case REQUEST_SET_MESSAGE:
 194       bubble_->SetMessage(request.message);
 195       break;
 196     case REQUEST_SET_INPUT_VOLUME:
 197       bubble_->SetInputVolume(request.volume, request.noise_volume);
 198       break;
 199     case REQUEST_CLOSE:
 200       bubble_.reset();
 201       break;
 202     default:
 203       NOTREACHED();
 204       break;
 205   }
 206 }
 207
 208 SpeechRecognitionBubbleController::UIRequest::UIRequest(RequestType type_value)
 209     : type(type_value),
 210       volume(0.0F),
 211       noise_volume(0.0F),
 212       render_process_id(0),
 213       render_view_id(0) {
 214 }
 215
 216 SpeechRecognitionBubbleController::UIRequest::~UIRequest() {
 217 }
 218
 219 }  // namespace speech