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// 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 "chrome/browser/speech/chrome_speech_input_manager.h"
#include <string>
#include "base/bind.h"
#include "base/synchronization/lock.h"
#include "base/threading/thread_restrictions.h"
#include "base/utf_string_conversions.h"
#include "chrome/browser/browser_process.h"
#include "chrome/browser/prefs/pref_service.h"
#include "chrome/browser/tab_contents/tab_util.h"
#include "chrome/common/pref_names.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/common/speech_input_result.h"
#include "grit/generated_resources.h"
#include "media/audio/audio_manager.h"
#include "ui/base/l10n/l10n_util.h"
#if defined(OS_WIN)
#include "chrome/installer/util/wmi.h"
#endif
using content::BrowserThread;
namespace speech_input {
// Asynchronously fetches the PC and audio hardware/driver info if
// the user has opted into UMA. This information is sent with speech input
// requests to the server for identifying and improving quality issues with
// specific device configurations.
class ChromeSpeechInputManager::OptionalRequestInfo
: public base::RefCountedThreadSafe<OptionalRequestInfo> {
public:
OptionalRequestInfo() : can_report_metrics_(false) {}
void Refresh() {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
// UMA opt-in can be checked only from the UI thread, so switch to that.
BrowserThread::PostTask(BrowserThread::UI, FROM_HERE,
base::Bind(&OptionalRequestInfo::CheckUMAAndGetHardwareInfo, this));
}
void CheckUMAAndGetHardwareInfo() {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
if (g_browser_process->local_state()->GetBoolean(
prefs::kMetricsReportingEnabled)) {
// Access potentially slow OS calls from the FILE thread.
BrowserThread::PostTask(BrowserThread::FILE, FROM_HERE,
base::Bind(&OptionalRequestInfo::GetHardwareInfo, this));
}
}
void GetHardwareInfo() {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
base::AutoLock lock(lock_);
can_report_metrics_ = true;
#if defined(OS_WIN)
value_ = UTF16ToUTF8(
installer::WMIComputerSystem::GetModel() + L"|" +
AudioManager::GetAudioManager()->GetAudioInputDeviceModel());
#else // defined(OS_WIN)
value_ = UTF16ToUTF8(
AudioManager::GetAudioManager()->GetAudioInputDeviceModel());
#endif // defined(OS_WIN)
}
std::string value() {
base::AutoLock lock(lock_);
return value_;
}
bool can_report_metrics() {
base::AutoLock lock(lock_);
return can_report_metrics_;
}
private:
friend class base::RefCountedThreadSafe<OptionalRequestInfo>;
~OptionalRequestInfo() {}
base::Lock lock_;
std::string value_;
bool can_report_metrics_;
DISALLOW_COPY_AND_ASSIGN(OptionalRequestInfo);
};
ChromeSpeechInputManager* ChromeSpeechInputManager::GetInstance() {
return Singleton<ChromeSpeechInputManager>::get();
}
ChromeSpeechInputManager::ChromeSpeechInputManager()
: bubble_controller_(new SpeechInputBubbleController(
ALLOW_THIS_IN_INITIALIZER_LIST(this))) {
}
ChromeSpeechInputManager::~ChromeSpeechInputManager() {
}
void ChromeSpeechInputManager::ShowRecognitionRequested(
int caller_id,
int render_process_id,
int render_view_id,
const gfx::Rect& element_rect) {
bubble_controller_->CreateBubble(caller_id, render_process_id,
render_view_id, element_rect);
}
void ChromeSpeechInputManager::GetRequestInfo(
bool* can_report_metrics, std::string* request_info) {
if (!optional_request_info_.get()) {
optional_request_info_ = new OptionalRequestInfo();
// Since hardware info is optional with speech input requests, we start an
// asynchronous fetch here and move on with recording audio. This first
// speech input request would send an empty string for hardware info and
// subsequent requests may have the hardware info available if the fetch
// completed before them. This way we don't end up stalling the user with
// a long wait and disk seeks when they click on a UI element and start
// speaking.
optional_request_info_->Refresh();
}
*can_report_metrics = optional_request_info_->can_report_metrics();
*request_info = optional_request_info_->value();
}
void ChromeSpeechInputManager::ShowWarmUp(int caller_id) {
bubble_controller_->SetBubbleWarmUpMode(caller_id);
}
void ChromeSpeechInputManager::ShowRecognizing(int caller_id) {
bubble_controller_->SetBubbleRecognizingMode(caller_id);
}
void ChromeSpeechInputManager::ShowRecording(int caller_id) {
bubble_controller_->SetBubbleRecordingMode(caller_id);
}
void ChromeSpeechInputManager::ShowInputVolume(
int caller_id, float volume, float noise_volume) {
bubble_controller_->SetBubbleInputVolume(caller_id, volume, noise_volume);
}
void ChromeSpeechInputManager::ShowMicError(
int caller_id,
SpeechInputManager::MicError error) {
switch (error) {
case SpeechInputManager::kNoDeviceAvailable:
bubble_controller_->SetBubbleMessage(
caller_id, l10n_util::GetStringUTF16(IDS_SPEECH_INPUT_NO_MIC));
break;
case SpeechInputManager::kDeviceInUse:
bubble_controller_->SetBubbleMessage(
caller_id, l10n_util::GetStringUTF16(IDS_SPEECH_INPUT_MIC_IN_USE));
break;
default:
NOTREACHED();
}
}
void ChromeSpeechInputManager::ShowRecognizerError(
int caller_id, content::SpeechInputError error) {
struct ErrorMessageMapEntry {
content::SpeechInputError error;
int message_id;
};
ErrorMessageMapEntry error_message_map[] = {
{
content::SPEECH_INPUT_ERROR_AUDIO, IDS_SPEECH_INPUT_MIC_ERROR
}, {
content::SPEECH_INPUT_ERROR_NO_SPEECH, IDS_SPEECH_INPUT_NO_SPEECH
}, {
content::SPEECH_INPUT_ERROR_NO_MATCH, IDS_SPEECH_INPUT_NO_RESULTS
}, {
content::SPEECH_INPUT_ERROR_NETWORK, IDS_SPEECH_INPUT_NET_ERROR
}
};
for (size_t i = 0; i < ARRAYSIZE_UNSAFE(error_message_map); ++i) {
if (error_message_map[i].error == error) {
bubble_controller_->SetBubbleMessage(
caller_id,
l10n_util::GetStringUTF16(error_message_map[i].message_id));
return;
}
}
NOTREACHED() << "unknown error " << error;
}
void ChromeSpeechInputManager::DoClose(int caller_id) {
bubble_controller_->CloseBubble(caller_id);
}
void ChromeSpeechInputManager::InfoBubbleButtonClicked(
int caller_id, SpeechInputBubble::Button button) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
// Ignore if the caller id was not in our active recognizers list because the
// user might have clicked more than once, or recognition could have been
// cancelled due to other reasons before the user click was processed.
if (!HasPendingRequest(caller_id))
return;
if (button == SpeechInputBubble::BUTTON_CANCEL) {
CancelRecognitionAndInformDelegate(caller_id);
} else if (button == SpeechInputBubble::BUTTON_TRY_AGAIN) {
StartRecognitionForRequest(caller_id);
}
}
void ChromeSpeechInputManager::InfoBubbleFocusChanged(int caller_id) {
DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
OnFocusChanged(caller_id);
}
} // namespace speech_input
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