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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
#include "AudioSessionRecord.h"
#include "MediaControlUtils.h"
#include "mozilla/StaticPrefs_dom.h"
#include "mozilla/dom/CanonicalBrowsingContext.h"
#include "mozilla/dom/WindowGlobalParent.h"
namespace mozilla::dom {
void AudioSessionRecord::LogState(uint64_t aBcId) const {
MOZ_LOG_FMT(
gMediaControlLog, LogLevel::Debug,
"AudioSessionRecord bc={}, typeOverride={}, audibleAtMs={}, state={}",
aBcId, mTypeOverride ? GetEnumString(*mTypeOverride).get() : "<none>",
mAudibleAtMs.valueOr(-1), GetEnumString(mState).get());
}
void AudioSessionRecord::SetTypeOverride(
uint64_t aBcId, Maybe<AudioSessionType> aTypeOverride) {
mTypeOverride = aTypeOverride;
LogState(aBcId);
}
void AudioSessionRecord::SetAudibleAtMs(uint64_t aBcId,
Maybe<int64_t> aAudibleAtMs) {
mAudibleAtMs = aAudibleAtMs;
LogState(aBcId);
}
void AudioSessionRecord::SetState(uint64_t aBcId, AudioSessionState aState) {
// Spec invariant: a session can only be Active while its browsing context
// is audible. The reverse direction (Inactive implies inaudible) is NOT
// asserted because the ยง5.4 cross-session cascade can transition a
// still-audible session to Inactive when another exclusive session takes
// over the speaker.
MOZ_ASSERT_IF(aState == AudioSessionState::Active, mAudibleAtMs.isSome());
mState = aState;
LogState(aBcId);
}
void AudioSessionRecord::DispatchStateChange(uint64_t aBcId) const {
if (!StaticPrefs::dom_audio_session_state_enabled()) {
return;
}
RefPtr<CanonicalBrowsingContext> bc = CanonicalBrowsingContext::Get(aBcId);
if (!bc) {
return;
}
RefPtr<WindowGlobalParent> wgp = bc->GetCurrentWindowGlobal();
if (!wgp) {
return;
}
MOZ_LOG(gMediaControlLog, LogLevel::Debug,
("AudioSessionRecord bc=%" PRIu64 ", DispatchStateChange state=%s",
aBcId, GetEnumString(mState).get()));
(void)wgp->SendNotifyAudioSessionStateChanged(mState);
}
} // namespace mozilla::dom