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content / browser / speech / speech_recognition_session.cc [blame]
// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/browser/speech/speech_recognition_session.h"
#include <memory>
#include "base/functional/bind.h"
#include "base/memory/weak_ptr.h"
#include "content/browser/speech/speech_recognition_manager_impl.h"
#include "mojo/public/cpp/bindings/pending_remote.h"
#include "mojo/public/cpp/bindings/remote.h"
namespace content {
SpeechRecognitionSession::SpeechRecognitionSession(
mojo::PendingRemote<media::mojom::SpeechRecognitionSessionClient> client)
: client_(std::move(client)) {
client_.set_disconnect_handler(
base::BindOnce(&SpeechRecognitionSession::ConnectionErrorHandler,
base::Unretained(this)));
}
SpeechRecognitionSession::~SpeechRecognitionSession() {
// If a connection error happens and the session hasn't been stopped yet,
// abort it.
if (!stopped_) {
Abort();
}
}
base::WeakPtr<SpeechRecognitionSession> SpeechRecognitionSession::AsWeakPtr() {
return weak_factory_.GetWeakPtr();
}
void SpeechRecognitionSession::Abort() {
SpeechRecognitionManager::GetInstance()->AbortSession(session_id_);
stopped_ = true;
}
void SpeechRecognitionSession::StopCapture() {
SpeechRecognitionManager::GetInstance()->StopAudioCaptureForSession(
session_id_);
stopped_ = true;
}
// -------- SpeechRecognitionEventListener interface implementation -----------
void SpeechRecognitionSession::OnRecognitionStart(int session_id) {
client_->Started();
}
void SpeechRecognitionSession::OnAudioStart(int session_id) {
client_->AudioStarted();
}
void SpeechRecognitionSession::OnSoundStart(int session_id) {
client_->SoundStarted();
}
void SpeechRecognitionSession::OnSoundEnd(int session_id) {
client_->SoundEnded();
}
void SpeechRecognitionSession::OnAudioEnd(int session_id) {
client_->AudioEnded();
}
void SpeechRecognitionSession::OnRecognitionEnd(int session_id) {
client_->Ended();
stopped_ = true;
client_.reset();
}
void SpeechRecognitionSession::OnRecognitionResults(
int session_id,
const std::vector<media::mojom::WebSpeechRecognitionResultPtr>& results) {
client_->ResultRetrieved(mojo::Clone(results));
}
void SpeechRecognitionSession::OnRecognitionError(
int session_id,
const media::mojom::SpeechRecognitionError& error) {
if (!client_.is_bound()) {
return;
}
client_->ErrorOccurred(media::mojom::SpeechRecognitionError::New(error));
}
// The events below are currently not used by speech JS APIs implementation.
void SpeechRecognitionSession::OnAudioLevelsChange(int session_id,
float volume,
float noise_volume) {}
void SpeechRecognitionSession::ConnectionErrorHandler() {
if (!stopped_) {
Abort();
}
}
} // namespace content