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// Copyright (c) 2012 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 "chromeos/dbus/speech_synthesizer_client.h"
#include "base/bind.h"
#include "base/compiler_specific.h"
#include "dbus/bus.h"
#include "dbus/message.h"
#include "dbus/object_path.h"
#include "dbus/object_proxy.h"
#include "third_party/cros_system_api/dbus/service_constants.h"
namespace chromeos {
// TODO(chaitanyag): rename to "locale" after making equivalent change in
// Chrome OS code.
const char SpeechSynthesizerClient::kSpeechPropertyLocale[] = "name";
const char SpeechSynthesizerClient::kSpeechPropertyGender[] = "gender";
const char SpeechSynthesizerClient::kSpeechPropertyRate[] = "rate";
const char SpeechSynthesizerClient::kSpeechPropertyPitch[] = "pitch";
const char SpeechSynthesizerClient::kSpeechPropertyVolume[] = "volume";
const char SpeechSynthesizerClient::kSpeechPropertyEquals[] = "=";
const char SpeechSynthesizerClient::kSpeechPropertyDelimiter[] = ";";
class SpeechSynthesizerClientImpl : public SpeechSynthesizerClient {
public:
explicit SpeechSynthesizerClientImpl(dbus::Bus* bus)
: proxy_(NULL),
weak_ptr_factory_(this) {
proxy_ = bus->GetObjectProxy(
speech_synthesis::kSpeechSynthesizerServiceName,
dbus::ObjectPath(speech_synthesis::kSpeechSynthesizerServicePath));
}
virtual ~SpeechSynthesizerClientImpl() {}
virtual void Speak(const std::string& text,
const std::string& properties) OVERRIDE {
dbus::MethodCall method_call(speech_synthesis::kSpeechSynthesizerInterface,
speech_synthesis::kSpeak);
dbus::MessageWriter writer(&method_call);
writer.AppendString(text);
writer.AppendString(properties);
proxy_->CallMethod(&method_call, dbus::ObjectProxy::TIMEOUT_USE_DEFAULT,
base::Bind(&SpeechSynthesizerClientImpl::OnSpeak,
weak_ptr_factory_.GetWeakPtr()));
}
virtual void StopSpeaking() OVERRIDE {
dbus::MethodCall method_call(speech_synthesis::kSpeechSynthesizerInterface,
speech_synthesis::kStop);
proxy_->CallMethod(&method_call, dbus::ObjectProxy::TIMEOUT_USE_DEFAULT,
base::Bind(&SpeechSynthesizerClientImpl::OnStopSpeaking,
weak_ptr_factory_.GetWeakPtr()));
}
virtual void IsSpeaking(const IsSpeakingCallback& callback) OVERRIDE {
dbus::MethodCall method_call(speech_synthesis::kSpeechSynthesizerInterface,
speech_synthesis::kIsSpeaking);
proxy_->CallMethod(&method_call, dbus::ObjectProxy::TIMEOUT_USE_DEFAULT,
base::Bind(&SpeechSynthesizerClientImpl::OnIsSpeaking,
weak_ptr_factory_.GetWeakPtr(),
callback));
}
private:
// Called when a response for Speak() is received
void OnSpeak(dbus::Response* response) {
if (!response) {
LOG(ERROR) << "Failed to speak.";
return;
}
VLOG(1) << "Spoke: " << response->ToString();
}
// Called when a response for StopSpeaking() is received
void OnStopSpeaking(dbus::Response* response) {
if (!response) {
LOG(ERROR) << "Failed to stop speaking.";
return;
}
VLOG(1) << "Stopped speaking: " << response->ToString();
}
// Called when a response for IsSpeaking() is received
void OnIsSpeaking(const IsSpeakingCallback& callback,
dbus::Response* response) {
bool value = false;
if (response) {
dbus::MessageReader reader(response);
reader.PopBool(&value);
} else {
LOG(ERROR) << "Failed to ask if it is speaking";
}
callback.Run(value);
}
dbus::ObjectProxy* proxy_;
base::WeakPtrFactory<SpeechSynthesizerClientImpl> weak_ptr_factory_;
DISALLOW_COPY_AND_ASSIGN(SpeechSynthesizerClientImpl);
};
class SpeechSynthesizerClientStubImpl : public SpeechSynthesizerClient {
public:
SpeechSynthesizerClientStubImpl() {}
virtual ~SpeechSynthesizerClientStubImpl() {}
virtual void Speak(const std::string& text,
const std::string& properties) OVERRIDE {}
virtual void StopSpeaking() OVERRIDE {}
virtual void IsSpeaking(const IsSpeakingCallback& callback) OVERRIDE {
callback.Run(false);
}
private:
DISALLOW_COPY_AND_ASSIGN(SpeechSynthesizerClientStubImpl);
};
SpeechSynthesizerClient::SpeechSynthesizerClient() {
}
SpeechSynthesizerClient::~SpeechSynthesizerClient() {
}
// static
SpeechSynthesizerClient* SpeechSynthesizerClient::Create(
DBusClientImplementationType type,
dbus::Bus* bus) {
if (type == REAL_DBUS_CLIENT_IMPLEMENTATION)
return new SpeechSynthesizerClientImpl(bus);
DCHECK_EQ(STUB_DBUS_CLIENT_IMPLEMENTATION, type);
return new SpeechSynthesizerClientStubImpl();
}
} // namespace chromeos
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