378 lines
10 KiB
C++
378 lines
10 KiB
C++
/*
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This file is part of Telegram Desktop,
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the official desktop version of Telegram messaging app, see https://telegram.org
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Telegram Desktop is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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It is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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In addition, as a special exception, the copyright holders give permission
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to link the code of portions of this program with the OpenSSL library.
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Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
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Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
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*/
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#include "media/player/media_player_instance.h"
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#include "media/media_audio.h"
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#include "media/media_audio_capture.h"
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#include "observer_peer.h"
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#include "messenger.h"
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#include "auth_session.h"
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#include "calls/calls_instance.h"
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namespace Media {
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namespace Player {
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namespace {
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Instance *SingleInstance = nullptr;
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} // namespace
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void start() {
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Audio::Start();
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Capture::Start();
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SingleInstance = new Instance();
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}
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void finish() {
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delete base::take(SingleInstance);
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Capture::Finish();
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Audio::Finish();
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}
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Instance::Instance()
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: _songData(AudioMsgId::Type::Song, OverviewMusicFiles)
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, _voiceData(AudioMsgId::Type::Voice, OverviewRoundVoiceFiles) {
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subscribe(Media::Player::Updated(), [this](const AudioMsgId &audioId) {
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handleSongUpdate(audioId);
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});
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auto observeEvents = Notify::PeerUpdate::Flag::SharedMediaChanged;
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subscribe(Notify::PeerUpdated(), Notify::PeerUpdatedHandler(observeEvents, [this](const Notify::PeerUpdate &update) {
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notifyPeerUpdated(update);
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}));
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subscribe(Global::RefSelfChanged(), [this] {
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if (!App::self()) {
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handleLogout();
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}
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});
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// While we have one Media::Player::Instance for all authsessions we have to do this.
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auto handleAuthSessionChange = [this] {
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if (AuthSession::Exists()) {
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subscribe(AuthSession::Current().calls().currentCallChanged(), [this](Calls::Call *call) {
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if (call) {
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pause(AudioMsgId::Type::Voice);
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pause(AudioMsgId::Type::Song);
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}
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});
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}
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};
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subscribe(Messenger::Instance().authSessionChanged(), [handleAuthSessionChange] {
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handleAuthSessionChange();
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});
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handleAuthSessionChange();
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}
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AudioMsgId::Type Instance::getActiveType() const {
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auto voiceData = getData(AudioMsgId::Type::Voice);
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if (voiceData->current) {
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auto state = mixer()->currentState(voiceData->type);
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if (voiceData->current == state.id && !IsStoppedOrStopping(state.state)) {
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return voiceData->type;
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}
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}
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return AudioMsgId::Type::Song;
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}
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void Instance::notifyPeerUpdated(const Notify::PeerUpdate &update) {
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checkPeerUpdate(AudioMsgId::Type::Song, update);
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checkPeerUpdate(AudioMsgId::Type::Voice, update);
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}
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void Instance::checkPeerUpdate(AudioMsgId::Type type, const Notify::PeerUpdate &update) {
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if (auto data = getData(type)) {
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if (!data->history) {
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return;
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}
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if (!(update.mediaTypesMask & (1 << data->overview))) {
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return;
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}
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if (update.peer != data->history->peer && (!data->migrated || update.peer != data->migrated->peer)) {
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return;
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}
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rebuildPlaylist(data);
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}
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}
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void Instance::handleSongUpdate(const AudioMsgId &audioId) {
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emitUpdate(audioId.type(), [&audioId](const AudioMsgId &playing) {
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return (audioId == playing);
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});
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}
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void Instance::setCurrent(const AudioMsgId &audioId) {
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if (auto data = getData(audioId.type())) {
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if (data->current != audioId) {
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data->current = audioId;
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data->isPlaying = false;
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auto history = data->history;
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auto migrated = data->migrated;
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auto item = data->current ? App::histItemById(data->current.contextId()) : nullptr;
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if (item) {
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data->history = item->history()->peer->migrateTo() ? App::history(item->history()->peer->migrateTo()) : item->history();
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data->migrated = data->history->peer->migrateFrom() ? App::history(data->history->peer->migrateFrom()) : nullptr;
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} else {
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data->history = nullptr;
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data->migrated = nullptr;
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}
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_trackChangedNotifier.notify(data->type, true);
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if (data->history != history || data->migrated != migrated) {
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rebuildPlaylist(data);
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}
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}
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}
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}
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void Instance::rebuildPlaylist(Data *data) {
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Expects(data != nullptr);
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data->playlist.clear();
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if (data->history && data->history->loadedAtBottom()) {
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auto &historyOverview = data->history->overview[data->overview];
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if (data->migrated && data->migrated->loadedAtBottom() && data->history->loadedAtTop()) {
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auto &migratedOverview = data->migrated->overview[data->overview];
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data->playlist.reserve(migratedOverview.size() + historyOverview.size());
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for_const (auto msgId, migratedOverview) {
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data->playlist.push_back(FullMsgId(data->migrated->channelId(), msgId));
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}
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} else {
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data->playlist.reserve(historyOverview.size());
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}
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for_const (auto msgId, historyOverview) {
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data->playlist.push_back(FullMsgId(data->history->channelId(), msgId));
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}
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}
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_playlistChangedNotifier.notify(data->type, true);
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}
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bool Instance::moveInPlaylist(Data *data, int delta, bool autonext) {
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Expects(data != nullptr);
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auto index = data->playlist.indexOf(data->current.contextId());
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auto newIndex = index + delta;
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if (!data->current || index < 0 || newIndex < 0 || newIndex >= data->playlist.size()) {
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rebuildPlaylist(data);
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return false;
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}
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auto msgId = data->playlist[newIndex];
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if (auto item = App::histItemById(msgId)) {
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if (auto media = item->getMedia()) {
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if (auto document = media->getDocument()) {
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if (autonext) {
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_switchToNextNotifier.notify({ data->current, msgId });
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}
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DocumentOpenClickHandler::doOpen(media->getDocument(), item, ActionOnLoadPlayInline);
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return true;
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}
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}
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}
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return false;
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}
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Instance *instance() {
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Expects(SingleInstance != nullptr);
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return SingleInstance;
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}
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void Instance::play(AudioMsgId::Type type) {
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auto state = mixer()->currentState(type);
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if (state.id) {
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if (IsStopped(state.state)) {
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play(state.id);
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} else {
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mixer()->resume(state.id);
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}
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} else if (auto data = getData(type)) {
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if (data->current) {
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play(data->current);
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}
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}
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}
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void Instance::play(const AudioMsgId &audioId) {
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if (!audioId) {
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return;
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}
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if (audioId.audio()->song() || audioId.audio()->voice()) {
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mixer()->play(audioId);
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setCurrent(audioId);
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if (audioId.audio()->loading()) {
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documentLoadProgress(audioId.audio());
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}
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} else if (audioId.audio()->isRoundVideo()) {
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if (auto item = App::histItemById(audioId.contextId())) {
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if (auto media = item->getMedia()) {
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media->playInline();
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}
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}
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}
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}
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void Instance::pause(AudioMsgId::Type type) {
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auto state = mixer()->currentState(type);
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if (state.id) {
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mixer()->pause(state.id);
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}
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}
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void Instance::stop(AudioMsgId::Type type) {
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auto state = mixer()->currentState(type);
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if (state.id) {
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mixer()->stop(state.id);
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}
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}
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void Instance::playPause(AudioMsgId::Type type) {
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auto state = mixer()->currentState(type);
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if (state.id) {
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if (IsStopped(state.state)) {
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play(state.id);
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} else if (IsPaused(state.state) || state.state == State::Pausing) {
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mixer()->resume(state.id);
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} else {
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mixer()->pause(state.id);
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}
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} else if (auto data = getData(type)) {
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if (data->current) {
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play(data->current);
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}
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}
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}
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bool Instance::next(AudioMsgId::Type type) {
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if (auto data = getData(type)) {
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return moveInPlaylist(data, 1, false);
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}
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return false;
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}
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bool Instance::previous(AudioMsgId::Type type) {
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if (auto data = getData(type)) {
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return moveInPlaylist(data, -1, false);
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}
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return false;
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}
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void Instance::playPauseCancelClicked(AudioMsgId::Type type) {
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if (isSeeking(type)) {
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return;
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}
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auto state = mixer()->currentState(type);
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auto stopped = IsStoppedOrStopping(state.state);
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auto showPause = !stopped && (state.state == State::Playing || state.state == State::Resuming || state.state == State::Starting);
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auto audio = state.id.audio();
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if (audio && audio->loading()) {
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audio->cancel();
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} else if (showPause) {
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pause(type);
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} else {
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play(type);
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}
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}
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void Instance::startSeeking(AudioMsgId::Type type) {
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if (auto data = getData(type)) {
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data->seeking = data->current;
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}
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pause(type);
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emitUpdate(type, [](const AudioMsgId &playing) { return true; });
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}
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void Instance::stopSeeking(AudioMsgId::Type type) {
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if (auto data = getData(type)) {
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data->seeking = AudioMsgId();
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}
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emitUpdate(type, [](const AudioMsgId &playing) { return true; });
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}
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void Instance::documentLoadProgress(DocumentData *document) {
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emitUpdate(document->song() ? AudioMsgId::Type::Song : AudioMsgId::Type::Voice, [document](const AudioMsgId &audioId) {
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return (audioId.audio() == document);
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});
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}
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template <typename CheckCallback>
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void Instance::emitUpdate(AudioMsgId::Type type, CheckCallback check) {
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auto state = mixer()->currentState(type);
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if (!state.id || !check(state.id)) {
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return;
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}
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setCurrent(state.id);
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_updatedNotifier.notify(state, true);
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if (auto data = getData(type)) {
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if (data->isPlaying && state.state == State::StoppedAtEnd) {
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if (data->repeatEnabled) {
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play(data->current);
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} else if (!moveInPlaylist(data, 1, true)) {
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_tracksFinishedNotifier.notify(type);
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}
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}
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auto isPlaying = !IsStopped(state.state);
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if (data->isPlaying != isPlaying) {
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data->isPlaying = isPlaying;
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if (data->isPlaying) {
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preloadNext(data);
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}
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}
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}
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}
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void Instance::preloadNext(Data *data) {
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Expects(data != nullptr);
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if (!data->current) {
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return;
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}
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auto index = data->playlist.indexOf(data->current.contextId());
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if (index < 0) {
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return;
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}
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auto nextIndex = index + 1;
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if (nextIndex >= data->playlist.size()) {
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return;
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}
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if (auto item = App::histItemById(data->playlist[nextIndex])) {
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if (auto media = item->getMedia()) {
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if (auto document = media->getDocument()) {
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if (!document->loaded(DocumentData::FilePathResolveSaveFromDataSilent)) {
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DocumentOpenClickHandler::doOpen(document, nullptr, ActionOnLoadNone);
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}
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}
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}
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}
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}
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void Instance::handleLogout() {
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*getData(AudioMsgId::Type::Voice) = Data(AudioMsgId::Type::Voice, OverviewRoundVoiceFiles);
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*getData(AudioMsgId::Type::Song) = Data(AudioMsgId::Type::Song, OverviewMusicFiles);
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_usePanelPlayer.notify(false, true);
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}
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} // namespace Player
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} // namespace Media
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