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// Copyright 2019 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.
#ifndef CONTENT_BROWSER_SPEECH_SPEECH_SYNTHESIS_IMPL_H_
#define CONTENT_BROWSER_SPEECH_SPEECH_SYNTHESIS_IMPL_H_
#include "content/public/browser/tts_controller.h"
#include "mojo/public/cpp/bindings/receiver_set.h"
#include "mojo/public/cpp/bindings/remote_set.h"
#include "third_party/blink/public/mojom/speech/speech_synthesis.mojom.h"
namespace content {
class BrowserContext;
// Back-end for the web speech synthesis API; dispatches speech requests to
// content::TtsController and forwards voice lists and events back to the
// requesting renderer.
class SpeechSynthesisImpl : public blink::mojom::SpeechSynthesis,
public VoicesChangedDelegate {
public:
explicit SpeechSynthesisImpl(BrowserContext* browser_context);
~SpeechSynthesisImpl() override;
SpeechSynthesisImpl(const SpeechSynthesisImpl&) = delete;
SpeechSynthesisImpl& operator=(const SpeechSynthesisImpl&) = delete;
void AddReceiver(
mojo::PendingReceiver<blink::mojom::SpeechSynthesis> receiver);
// blink::mojom::SpeechSynthesis methods:
void AddVoiceListObserver(
mojo::PendingRemote<blink::mojom::SpeechSynthesisVoiceListObserver>
observer) override;
void Speak(
blink::mojom::SpeechSynthesisUtterancePtr utterance,
mojo::PendingRemote<blink::mojom::SpeechSynthesisClient> client) override;
void Pause() override;
void Resume() override;
void Cancel() override;
// VoicesChangedDelegate methods:
void OnVoicesChanged() override;
private:
BrowserContext* browser_context_;
mojo::ReceiverSet<blink::mojom::SpeechSynthesis> receiver_set_;
mojo::RemoteSet<blink::mojom::SpeechSynthesisVoiceListObserver> observer_set_;
};
} // namespace content
#endif // CONTENT_BROWSER_SPEECH_SPEECH_SYNTHESIS_IMPL_H_