blob: 19afe2c0dc19531d400d4944b25cb46ca08e32d3 [file] [log] [blame]
// Copyright 2018 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "services/media_session/media_controller.h"
namespace media_session {
MediaController::MediaController() {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
}
MediaController::~MediaController() = default;
void MediaController::Suspend() {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
if (session_)
session_->Suspend(mojom::MediaSession::SuspendType::kUI);
}
void MediaController::Resume() {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
if (session_)
session_->Resume(mojom::MediaSession::SuspendType::kUI);
}
void MediaController::Stop() {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
if (session_)
session_->Stop(mojom::MediaSession::SuspendType::kUI);
}
void MediaController::ToggleSuspendResume() {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
if (session_info_.is_null())
return;
switch (session_info_->playback_state) {
case mojom::MediaPlaybackState::kPlaying:
Suspend();
break;
case mojom::MediaPlaybackState::kPaused:
Resume();
break;
}
}
void MediaController::AddObserver(mojom::MediaControllerObserverPtr observer) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
// Flush the new observer with the current state.
observer->MediaSessionInfoChanged(session_info_.Clone());
observer->MediaSessionMetadataChanged(session_metadata_);
observer->MediaSessionActionsChanged(session_actions_);
observers_.AddPtr(std::move(observer));
}
void MediaController::MediaSessionInfoChanged(mojom::MediaSessionInfoPtr info) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
observers_.ForAllPtrs([&info](mojom::MediaControllerObserver* observer) {
observer->MediaSessionInfoChanged(info.Clone());
});
session_info_ = std::move(info);
}
void MediaController::MediaSessionMetadataChanged(
const base::Optional<MediaMetadata>& metadata) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
observers_.ForAllPtrs([&metadata](mojom::MediaControllerObserver* observer) {
observer->MediaSessionMetadataChanged(metadata);
});
session_metadata_ = metadata;
}
void MediaController::MediaSessionActionsChanged(
const std::vector<mojom::MediaSessionAction>& actions) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
observers_.ForAllPtrs([&actions](mojom::MediaControllerObserver* observer) {
observer->MediaSessionActionsChanged(actions);
});
session_actions_ = actions;
}
void MediaController::PreviousTrack() {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
if (session_)
session_->PreviousTrack();
}
void MediaController::NextTrack() {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
if (session_)
session_->NextTrack();
}
void MediaController::Seek(base::TimeDelta seek_time) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
if (session_)
session_->Seek(seek_time);
}
bool MediaController::SetMediaSession(mojom::MediaSession* session) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
bool changed = session != session_;
if (changed) {
session_binding_.Close();
session_info_.reset();
session_metadata_.reset();
session_actions_.clear();
if (session) {
// Add |this| as an observer for |session|.
mojom::MediaSessionObserverPtr observer;
session_binding_.Bind(mojo::MakeRequest(&observer));
session->AddObserver(std::move(observer));
} else {
// If we are no longer bound to a session we should flush the observers
// with empty data.
observers_.ForAllPtrs([](mojom::MediaControllerObserver* observer) {
observer->MediaSessionInfoChanged(nullptr);
observer->MediaSessionMetadataChanged(base::nullopt);
observer->MediaSessionActionsChanged(
std::vector<mojom::MediaSessionAction>());
});
}
}
session_ = session;
return changed;
}
void MediaController::BindToInterface(mojom::MediaControllerRequest request) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
bindings_.AddBinding(this, std::move(request));
}
void MediaController::FlushForTesting() {
bindings_.FlushForTesting();
}
} // namespace media_session