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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.
*/
#include "third_party/blink/renderer/modules/speech/speech_recognition_controller.h"
#include <memory>
#include <optional>
#include "media/mojo/mojom/speech_recognition_recognition_context.mojom-blink.h"
#include "media/mojo/mojom/speech_recognizer.mojom-blink.h"
#include "third_party/blink/public/platform/browser_interface_broker_proxy.h"
#include "third_party/blink/renderer/core/dom/document.h"
#include "third_party/blink/renderer/core/frame/local_dom_window.h"
#include "third_party/blink/renderer/modules/speech/speech_grammar_list.h"
#include "third_party/blink/renderer/modules/speech/speech_recognition.h"
#include "third_party/blink/renderer/platform/heap/garbage_collected.h"
namespace blink {
const char SpeechRecognitionController::kSupplementName[] =
"SpeechRecognitionController";
SpeechRecognitionController* SpeechRecognitionController::From(
LocalDOMWindow& window) {
SpeechRecognitionController* controller =
Supplement<LocalDOMWindow>::From<SpeechRecognitionController>(window);
if (!controller) {
controller = MakeGarbageCollected<SpeechRecognitionController>(window);
Supplement<LocalDOMWindow>::ProvideTo(window, controller);
}
return controller;
}
SpeechRecognitionController::SpeechRecognitionController(LocalDOMWindow& window)
: Supplement<LocalDOMWindow>(window),
speech_recognizer_(&window),
on_device_speech_recognition_(&window) {}
SpeechRecognitionController::~SpeechRecognitionController() {
// FIXME: Call m_client->pageDestroyed(); once we have implemented a client.
}
media::mojom::blink::StartSpeechRecognitionRequestParamsPtr
SpeechRecognitionController::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,
std::optional<media::AudioParameters> audio_parameters) {
media::mojom::blink::StartSpeechRecognitionRequestParamsPtr params =
media::mojom::blink::StartSpeechRecognitionRequestParams::New();
for (unsigned i = 0; i < grammars.length(); i++) {
SpeechGrammar* grammar = grammars.item(i);
params->grammars.push_back(
media::mojom::blink::SpeechRecognitionGrammar::New(grammar->src(),
grammar->weight()));
}
if (phrases && phrases->length() > 0) {
params->recognition_context =
media::mojom::blink::SpeechRecognitionRecognitionContext::New();
for (unsigned i = 0; i < phrases->length(); i++) {
SpeechRecognitionPhrase* phrase = phrases->item(i);
params->recognition_context->phrases.push_back(
media::mojom::blink::SpeechRecognitionPhrase::New(phrase->phrase(),
phrase->boost()));
}
}
params->language = lang.IsNull() ? g_empty_string : lang;
params->max_hypotheses = max_alternatives;
params->continuous = continuous;
params->interim_results = interim_results;
params->on_device = on_device;
params->allow_cloud_fallback = allow_cloud_fallback;
params->client = std::move(session_client);
params->session_receiver = std::move(session_receiver);
if (audio_forwarder.is_valid()) {
params->audio_forwarder = std::move(audio_forwarder);
params->channel_count = audio_parameters.value().channels();
params->sample_rate = audio_parameters.value().sample_rate();
}
return params;
}
void SpeechRecognitionController::Start(
media::mojom::blink::StartSpeechRecognitionRequestParamsPtr params) {
GetSpeechRecognizer()->Start(std::move(params));
}
void SpeechRecognitionController::OnDeviceWebSpeechAvailable(
const String& language,
base::OnceCallback<void(media::mojom::blink::AvailabilityStatus)>
callback) {
GetOnDeviceSpeechRecognition()->OnDeviceWebSpeechAvailable(
language, std::move(callback));
}
void SpeechRecognitionController::InstallOnDeviceSpeechRecognition(
const String& language,
base::OnceCallback<void(bool)> callback) {
GetOnDeviceSpeechRecognition()->InstallOnDeviceSpeechRecognition(
language, std::move(callback));
}
void SpeechRecognitionController::Trace(Visitor* visitor) const {
Supplement::Trace(visitor);
visitor->Trace(speech_recognizer_);
visitor->Trace(on_device_speech_recognition_);
}
media::mojom::blink::SpeechRecognizer*
SpeechRecognitionController::GetSpeechRecognizer() {
if (!speech_recognizer_.is_bound()) {
GetSupplementable()->GetBrowserInterfaceBroker().GetInterface(
speech_recognizer_.BindNewPipeAndPassReceiver(
GetSupplementable()->GetTaskRunner(TaskType::kMiscPlatformAPI)));
}
return speech_recognizer_.get();
}
media::mojom::blink::OnDeviceSpeechRecognition*
SpeechRecognitionController::GetOnDeviceSpeechRecognition() {
if (!on_device_speech_recognition_.is_bound()) {
GetSupplementable()->GetBrowserInterfaceBroker().GetInterface(
on_device_speech_recognition_.BindNewPipeAndPassReceiver(
GetSupplementable()->GetTaskRunner(TaskType::kMiscPlatformAPI)));
}
return on_device_speech_recognition_.get();
}
} // namespace blink
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