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/*
* Copyright (C) 2013 Apple Computer, Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "third_party/blink/renderer/platform/speech/platform_speech_synthesizer.h"
#include "build/build_config.h"
#include "third_party/blink/public/platform/platform.h"
#include "third_party/blink/public/platform/web_speech_synthesis_utterance.h"
#include "third_party/blink/public/platform/web_speech_synthesizer.h"
#include "third_party/blink/public/platform/web_speech_synthesizer_client.h"
#include "third_party/blink/renderer/platform/exported/web_speech_synthesizer_client_impl.h"
#include "third_party/blink/renderer/platform/speech/platform_speech_synthesis_utterance.h"
namespace blink {
PlatformSpeechSynthesizer* PlatformSpeechSynthesizer::Create(
PlatformSpeechSynthesizerClient* client) {
PlatformSpeechSynthesizer* synthesizer =
new PlatformSpeechSynthesizer(client);
#if defined(OS_ANDROID)
// On Android devices we don't fetch voices until the object
// is touched to avoid needlessly binding to TTS service, see
// https://crbug.com/811929.
#else
synthesizer->InitializeVoiceList();
#endif
return synthesizer;
}
PlatformSpeechSynthesizer::PlatformSpeechSynthesizer(
PlatformSpeechSynthesizerClient* client)
: speech_synthesizer_client_(client) {
web_speech_synthesizer_client_ =
new WebSpeechSynthesizerClientImpl(this, client);
web_speech_synthesizer_ = Platform::Current()->CreateSpeechSynthesizer(
web_speech_synthesizer_client_);
}
PlatformSpeechSynthesizer::~PlatformSpeechSynthesizer() = default;
void PlatformSpeechSynthesizer::Speak(
PlatformSpeechSynthesisUtterance* utterance) {
MaybeInitializeVoiceList();
if (web_speech_synthesizer_ && web_speech_synthesizer_client_)
web_speech_synthesizer_->Speak(WebSpeechSynthesisUtterance(utterance));
}
void PlatformSpeechSynthesizer::Pause() {
MaybeInitializeVoiceList();
if (web_speech_synthesizer_)
web_speech_synthesizer_->Pause();
}
void PlatformSpeechSynthesizer::Resume() {
MaybeInitializeVoiceList();
if (web_speech_synthesizer_)
web_speech_synthesizer_->Resume();
}
void PlatformSpeechSynthesizer::Cancel() {
MaybeInitializeVoiceList();
if (web_speech_synthesizer_)
web_speech_synthesizer_->Cancel();
}
const Vector<scoped_refptr<PlatformSpeechSynthesisVoice>>&
PlatformSpeechSynthesizer::GetVoiceList() {
MaybeInitializeVoiceList();
return voice_list_;
}
void PlatformSpeechSynthesizer::SetVoiceList(
Vector<scoped_refptr<PlatformSpeechSynthesisVoice>>& voices) {
voice_list_ = voices;
}
void PlatformSpeechSynthesizer::MaybeInitializeVoiceList() {
if (!voices_initialized_)
InitializeVoiceList();
}
void PlatformSpeechSynthesizer::InitializeVoiceList() {
if (web_speech_synthesizer_) {
voices_initialized_ = true;
web_speech_synthesizer_->UpdateVoiceList();
}
}
void PlatformSpeechSynthesizer::Trace(blink::Visitor* visitor) {
visitor->Trace(speech_synthesizer_client_);
visitor->Trace(web_speech_synthesizer_client_);
}
} // namespace blink
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