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/*
* Copyright (C) 2012 Google Inc. All rights reserved.
* Copyright (C) 2013-2018 Apple 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 INC. AND ITS CONTRIBUTORS ``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 INC. OR ITS 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 "config.h"
#include "UserMediaController.h"
#if ENABLE(MEDIA_STREAM)
#include "Document.h"
#include "LocalDOMWindow.h"
#include "PermissionsPolicy.h"
#include "RealtimeMediaSourceCenter.h"
#include "UserMediaRequest.h"
#include <wtf/TZoneMallocInlines.h>
namespace WebCore {
WTF_MAKE_TZONE_ALLOCATED_IMPL(UserMediaController);
ASCIILiteral UserMediaController::supplementName()
{
return "UserMediaController"_s;
}
UserMediaController::UserMediaController(UserMediaClient* client)
: m_client(client)
{
}
UserMediaController::~UserMediaController()
{
m_client->pageDestroyed();
}
void provideUserMediaTo(Page* page, UserMediaClient* client)
{
UserMediaController::provideTo(page, UserMediaController::supplementName(), makeUnique<UserMediaController>(client));
}
void UserMediaController::logGetUserMediaDenial(Document& document)
{
if (RefPtr window = document.domWindow())
window->printErrorMessage("Not allowed to call getUserMedia."_s);
}
void UserMediaController::logGetDisplayMediaDenial(Document& document)
{
if (RefPtr window = document.domWindow())
window->printErrorMessage("Not allowed to call getDisplayMedia."_s);
}
void UserMediaController::logEnumerateDevicesDenial(Document& document)
{
// We redo the check to print to the console log.
PermissionsPolicy::isFeatureEnabled(PermissionsPolicy::Feature::Camera, document);
PermissionsPolicy::isFeatureEnabled(PermissionsPolicy::Feature::Microphone, document);
if (RefPtr window = document.domWindow())
window->printErrorMessage("Not allowed to call enumerateDevices."_s);
}
void UserMediaController::setShouldListenToVoiceActivity(Document& document, bool shouldListen)
{
if (shouldListen) {
ASSERT(!m_voiceActivityDocuments.contains(document));
m_voiceActivityDocuments.add(document);
} else {
ASSERT(m_voiceActivityDocuments.contains(document));
m_voiceActivityDocuments.remove(document);
}
checkDocumentForVoiceActivity(nullptr);
}
void UserMediaController::checkDocumentForVoiceActivity(const Document* document)
{
if (document) {
if (m_shouldListenToVoiceActivity == document->mediaState().containsAny(MediaProducer::IsCapturingAudioMask))
return;
}
bool shouldListenToVoiceActivity = anyOf(m_voiceActivityDocuments, [] (auto& document) {
return document.mediaState().containsAny(MediaProducer::IsCapturingAudioMask);
});
if (m_shouldListenToVoiceActivity == shouldListenToVoiceActivity)
return;
m_shouldListenToVoiceActivity = shouldListenToVoiceActivity;
m_client->setShouldListenToVoiceActivity(m_shouldListenToVoiceActivity);
}
void UserMediaController::voiceActivityDetected()
{
#if ENABLE(MEDIA_SESSION)
for (auto& document : m_voiceActivityDocuments)
Ref(document)->voiceActivityDetected();
#endif
}
} // namespace WebCore
#endif // ENABLE(MEDIA_STREAM)
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