tdesktop/Telegram/SourceFiles/media/system_media_controls_manag...

257 lines
7.7 KiB
C++

/*
This file is part of Telegram Desktop,
the official desktop application for the Telegram messaging service.
For license and copyright information please follow this link:
https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
*/
#include "media/system_media_controls_manager.h"
#include "base/observer.h"
#include "base/platform/base_platform_system_media_controls.h"
#include "core/application.h"
#include "core/core_settings.h"
#include "data/data_document.h"
#include "data/data_document_media.h"
#include "data/data_file_origin.h"
#include "mainwidget.h"
#include "main/main_account.h"
#include "main/main_session.h"
#include "media/audio/media_audio.h"
#include "media/player/media_player_instance.h"
#include "media/streaming/media_streaming_instance.h"
#include "media/streaming/media_streaming_player.h"
#include "ui/text/format_song_document_name.h"
#include "window/window_controller.h"
namespace Media {
bool SystemMediaControlsManager::Supported() {
return base::Platform::SystemMediaControls::Supported();
}
SystemMediaControlsManager::SystemMediaControlsManager(
not_null<Window::Controller*> controller)
: _controls(std::make_unique<base::Platform::SystemMediaControls>()) {
using PlaybackStatus =
base::Platform::SystemMediaControls::PlaybackStatus;
using Command = base::Platform::SystemMediaControls::Command;
_controls->setApplicationName(AppName.utf16());
const auto inited = _controls->init(controller->widget());
if (!inited) {
LOG(("SystemMediaControlsManager failed to init."));
return;
}
const auto type = AudioMsgId::Type::Song;
using TrackState = Media::Player::TrackState;
const auto mediaPlayer = Media::Player::instance();
auto trackFilter = rpl::filter([=](const TrackState &state) {
return (state.id.type() == type);
});
mediaPlayer->updatedNotifier(
) | trackFilter | rpl::map([=](const TrackState &state) {
using namespace Media::Player;
if (_streamed) {
const auto &player = _streamed->player();
if (player.buffering() || !player.playing()) {
return PlaybackStatus::Paused;
}
}
if (IsStoppedOrStopping(state.state)) {
return PlaybackStatus::Stopped;
} else if (IsPausedOrPausing(state.state)) {
return PlaybackStatus::Paused;
}
return PlaybackStatus::Playing;
}) | rpl::distinct_until_changed(
) | rpl::start_with_next([=](PlaybackStatus status) {
_controls->setPlaybackStatus(status);
}, _lifetime);
rpl::merge(
mediaPlayer->stops(type) | rpl::map_to(false),
mediaPlayer->startsPlay(type) | rpl::map_to(true)
) | rpl::distinct_until_changed() | rpl::start_with_next([=](bool audio) {
_controls->setEnabled(audio);
if (audio) {
_controls->setIsNextEnabled(mediaPlayer->nextAvailable(type));
_controls->setIsPreviousEnabled(
mediaPlayer->previousAvailable(type));
_controls->setIsPlayPauseEnabled(true);
_controls->setIsStopEnabled(true);
_controls->setPlaybackStatus(PlaybackStatus::Playing);
_controls->updateDisplay();
} else {
_cachedMediaView.clear();
_streamed = nullptr;
_controls->clearMetadata();
}
_lifetimeDownload.destroy();
}, _lifetime);
auto trackChanged = base::ObservableViewer(
mediaPlayer->trackChangedNotifier()
) | rpl::filter([=](AudioMsgId::Type audioType) {
return audioType == type;
});
auto unlocked = Core::App().passcodeLockChanges(
) | rpl::filter([=](bool locked) {
return !locked && (mediaPlayer->current(type));
}) | rpl::map([=] {
return type;
}) | rpl::before_next([=] {
_controls->setEnabled(true);
_controls->updateDisplay();
});
rpl::merge(
std::move(trackChanged),
std::move(unlocked)
) | rpl::start_with_next([=](AudioMsgId::Type audioType) {
_lifetimeDownload.destroy();
const auto current = mediaPlayer->current(audioType);
if (!current) {
return;
}
if ((_lastAudioMsgId.contextId() == current.contextId())
&& (_lastAudioMsgId.audio() == current.audio())
&& (_lastAudioMsgId.type() == current.type())) {
return;
}
const auto document = current.audio();
const auto &[title, performer] = Ui::Text::FormatSongNameFor(document)
.composedName();
_controls->setArtist(performer);
_controls->setTitle(title);
if (_controls->seekingSupported()) {
const auto state = mediaPlayer->getState(audioType);
_controls->setDuration(state.length);
// macOS NowPlaying and Linux MPRIS update the track position
// according to the rate property
// while the playback status is "playing",
// so we should change the track position only when
// the track is changed
// or when the position is changed by the user.
_controls->setPosition(state.position);
_streamed = std::make_unique<Media::Streaming::Instance>(
document,
current.contextId(),
nullptr);
}
// Setting a thumbnail can take a long time,
// so we need to update the display before that.
_controls->updateDisplay();
if (document && document->isSongWithCover()) {
const auto view = document->createMediaView();
view->thumbnailWanted(current.contextId());
_cachedMediaView.push_back(view);
if (const auto imagePtr = view->thumbnail()) {
_controls->setThumbnail(imagePtr->original());
} else {
document->session().downloaderTaskFinished(
) | rpl::start_with_next([=] {
if (const auto imagePtr = view->thumbnail()) {
_controls->setThumbnail(imagePtr->original());
_lifetimeDownload.destroy();
}
}, _lifetimeDownload);
_controls->clearThumbnail();
}
} else {
_controls->clearThumbnail();
}
_lastAudioMsgId = current;
}, _lifetime);
mediaPlayer->playlistChanges(
type
) | rpl::start_with_next([=] {
_controls->setIsNextEnabled(mediaPlayer->nextAvailable(type));
_controls->setIsPreviousEnabled(mediaPlayer->previousAvailable(type));
}, _lifetime);
_controls->commandRequests(
) | rpl::start_with_next([=](Command command) {
switch (command) {
case Command::PlayPause: mediaPlayer->playPause(type); break;
case Command::Play: mediaPlayer->play(type); break;
case Command::Pause: mediaPlayer->pause(type); break;
case Command::Next: mediaPlayer->next(type); break;
case Command::Previous: mediaPlayer->previous(type); break;
case Command::Stop: mediaPlayer->stop(type); break;
case Command::Raise: controller->widget()->showFromTray(); break;
case Command::Quit: {
if (const auto main = controller->widget()->sessionContent()) {
main->closeBothPlayers();
}
break;
}
}
}, _lifetime);
if (_controls->seekingSupported()) {
mediaPlayer->seekingChanges(
type
) | rpl::filter([](Media::Player::Instance::Seeking seeking) {
return (seeking == Media::Player::Instance::Seeking::Finish);
}) | rpl::map([=] {
return mediaPlayer->getState(type).position;
}) | rpl::distinct_until_changed(
) | rpl::start_with_next([=](int position) {
_controls->setPosition(position);
_controls->updateDisplay();
}, _lifetime);
_controls->seekRequests(
) | rpl::start_with_next([=](float64 progress) {
mediaPlayer->finishSeeking(type, progress);
}, _lifetime);
_controls->updatePositionRequests(
) | rpl::start_with_next([=] {
_controls->setPosition(mediaPlayer->getState(type).position);
}, _lifetime);
}
Core::App().passcodeLockValue(
) | rpl::filter([=](bool locked) {
return locked && Core::App().maybeActiveSession();
}) | rpl::start_with_next([=] {
_controls->setEnabled(false);
}, _lifetime);
if (_controls->volumeSupported()) {
rpl::single(
Core::App().settings().songVolume()
) | rpl::then(
Core::App().settings().songVolumeChanges()
) | rpl::start_with_next([=](float64 volume) {
_controls->setVolume(volume);
}, _lifetime);
_controls->volumeChangeRequests(
) | rpl::start_with_next([](float64 volume) {
Core::App().settings().setSongVolume(volume);
}, _lifetime);
}
}
SystemMediaControlsManager::~SystemMediaControlsManager() = default;
} // namespace Media