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/*
* Copyright (C) 2012 Google 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:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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 THE COPYRIGHT HOLDERS ``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 THE COPYRIGHT OWNER 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.
*/
#ifndef THIRD_PARTY_BLINK_RENDERER_MODULES_SPEECH_SPEECH_RECOGNITION_CONTROLLER_H_
#define THIRD_PARTY_BLINK_RENDERER_MODULES_SPEECH_SPEECH_RECOGNITION_CONTROLLER_H_
#include <optional>
#include "media/base/audio_parameters.h"
#include "media/mojo/mojom/speech_recognition_audio_forwarder.mojom-blink.h"
#include "media/mojo/mojom/speech_recognizer.mojom-blink.h"
#include "mojo/public/cpp/bindings/pending_receiver.h"
#include "mojo/public/cpp/bindings/pending_remote.h"
#include "third_party/blink/renderer/modules/modules_export.h"
#include "third_party/blink/renderer/modules/speech/speech_recognition_phrase_list.h"
#include "third_party/blink/renderer/platform/mojo/heap_mojo_remote.h"
#include "third_party/blink/renderer/platform/mojo/heap_mojo_wrapper_mode.h"
#include "third_party/blink/renderer/platform/scheduler/public/frame_or_worker_scheduler.h"
#include "third_party/blink/renderer/platform/supplementable.h"
namespace blink {
class LocalDOMWindow;
class SpeechGrammarList;
class MODULES_EXPORT SpeechRecognitionController final
: public GarbageCollected<SpeechRecognitionController>,
public Supplement<LocalDOMWindow> {
public:
static const char kSupplementName[];
explicit SpeechRecognitionController(LocalDOMWindow&);
~SpeechRecognitionController();
// Builds the speech recognition request params. If `audio_forwarder` and
// `audio_parameters` are not defined, speech recognition will use audio from
// the user's default audio input device instead. `on_device` defines whether
// on-device speech recognition should be used. `allow_cloud_fallback` defines
// whether a server-based speech recognition service may be used if on-device
// speech recognition is not available.
media::mojom::blink::StartSpeechRecognitionRequestParamsPtr
BuildStartSpeechRecognitionRequestParams(
mojo::PendingReceiver<media::mojom::blink::SpeechRecognitionSession>
session_receiver,
mojo::PendingRemote<media::mojom::blink::SpeechRecognitionSessionClient>
session_client,
const SpeechGrammarList& grammars,
const SpeechRecognitionPhraseList* phrases,
const String& lang,
bool continuous,
bool interim_results,
uint32_t max_alternatives,
bool on_device,
bool allow_cloud_fallback,
mojo::PendingReceiver<
media::mojom::blink::SpeechRecognitionAudioForwarder>
audio_forwarder = mojo::NullReceiver(),
std::optional<media::AudioParameters> audio_parameters = std::nullopt);
// Starts speech recognition with the given params.
void Start(
media::mojom::blink::StartSpeechRecognitionRequestParamsPtr params);
void OnDeviceWebSpeechAvailable(
const String& language,
base::OnceCallback<void(media::mojom::blink::AvailabilityStatus)>
callback);
void InstallOnDeviceSpeechRecognition(
const String& language,
base::OnceCallback<void(bool)> callback);
static SpeechRecognitionController* From(LocalDOMWindow&);
void Trace(Visitor* visitor) const override;
private:
media::mojom::blink::SpeechRecognizer* GetSpeechRecognizer();
media::mojom::blink::OnDeviceSpeechRecognition*
GetOnDeviceSpeechRecognition();
HeapMojoRemote<media::mojom::blink::SpeechRecognizer> speech_recognizer_;
HeapMojoRemote<media::mojom::blink::OnDeviceSpeechRecognition>
on_device_speech_recognition_;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_MODULES_SPEECH_SPEECH_RECOGNITION_CONTROLLER_H_
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