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// Copyright 2014 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 "extensions/shell/browser/shell_speech_recognition_manager_delegate.h"
#include "base/bind.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/render_view_host.h"
#include "content/public/browser/speech_recognition_manager.h"
#include "content/public/browser/speech_recognition_session_context.h"
#include "content/public/browser/web_contents.h"
#include "extensions/browser/view_type_utils.h"
using content::BrowserThread;
using content::SpeechRecognitionManager;
using content::WebContents;
namespace extensions {
namespace speech {
ShellSpeechRecognitionManagerDelegate::ShellSpeechRecognitionManagerDelegate() {
}
ShellSpeechRecognitionManagerDelegate::
~ShellSpeechRecognitionManagerDelegate() {
}
void ShellSpeechRecognitionManagerDelegate::OnRecognitionStart(int session_id) {
}
void ShellSpeechRecognitionManagerDelegate::OnAudioStart(int session_id) {
}
void ShellSpeechRecognitionManagerDelegate::OnEnvironmentEstimationComplete(
int session_id) {
}
void ShellSpeechRecognitionManagerDelegate::OnSoundStart(int session_id) {
}
void ShellSpeechRecognitionManagerDelegate::OnSoundEnd(int session_id) {
}
void ShellSpeechRecognitionManagerDelegate::OnAudioEnd(int session_id) {
}
void ShellSpeechRecognitionManagerDelegate::OnRecognitionEnd(int session_id) {
}
void ShellSpeechRecognitionManagerDelegate::OnRecognitionResults(
int session_id,
const content::SpeechRecognitionResults& result) {
}
void ShellSpeechRecognitionManagerDelegate::OnRecognitionError(
int session_id,
const content::SpeechRecognitionError& error) {
}
void ShellSpeechRecognitionManagerDelegate::OnAudioLevelsChange(
int session_id,
float volume,
float noise_volume) {
}
void ShellSpeechRecognitionManagerDelegate::CheckRecognitionIsAllowed(
int session_id,
base::Callback<void(bool ask_user, bool is_allowed)> callback) {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
const content::SpeechRecognitionSessionContext& context =
SpeechRecognitionManager::GetInstance()->GetSessionContext(session_id);
// Make sure that initiators (extensions/web pages) properly set the
// |render_process_id| field, which is needed later to retrieve the profile.
DCHECK_NE(context.render_process_id, 0);
BrowserThread::PostTask(BrowserThread::UI, FROM_HERE,
base::Bind(&CheckRenderViewType,
callback,
context.render_process_id,
context.render_view_id));
}
content::SpeechRecognitionEventListener*
ShellSpeechRecognitionManagerDelegate::GetEventListener() {
return this;
}
bool ShellSpeechRecognitionManagerDelegate::FilterProfanities(
int render_process_id) {
// TODO(zork): Determine where this preference should come from.
return true;
}
// static
void ShellSpeechRecognitionManagerDelegate::CheckRenderViewType(
base::Callback<void(bool ask_user, bool is_allowed)> callback,
int render_process_id,
int render_view_id) {
DCHECK_CURRENTLY_ON(BrowserThread::UI);
content::RenderViewHost* render_view_host =
content::RenderViewHost::FromID(render_process_id, render_view_id);
bool allowed = false;
bool check_permission = false;
if (render_view_host) {
WebContents* web_contents =
WebContents::FromRenderViewHost(render_view_host);
extensions::ViewType view_type = extensions::GetViewType(web_contents);
if (view_type == extensions::VIEW_TYPE_APP_WINDOW ||
view_type == extensions::VIEW_TYPE_EXTENSION_BACKGROUND_PAGE) {
allowed = true;
check_permission = true;
} else {
LOG(WARNING) << "Speech recognition only supported in Apps.";
}
}
BrowserThread::PostTask(BrowserThread::IO, FROM_HERE,
base::Bind(callback, check_permission, allowed));
}
} // namespace speech
} // namespace extensions
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