Files
strawberry/src/moodbar/moodbarcontroller.cpp
Jonas Kvinge 8302a95bc1 Use shared pointers for moodbar pipelines
Possible fix for #1633
2025-01-05 18:28:41 +01:00

117 lines
3.3 KiB
C++

/*
* Strawberry Music Player
* This file was part of Clementine.
* Copyright 2012, David Sansome <me@davidsansome.com>
* Copyright 2019-2025, Jonas Kvinge <jonas@jkvinge.net>
*
* Strawberry is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Strawberry is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Strawberry. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include <QObject>
#include <QByteArray>
#include <QUrl>
#include "includes/shared_ptr.h"
#include "core/song.h"
#include "core/settings.h"
#include "core/player.h"
#include "engine/enginebase.h"
#include "constants/moodbarsettings.h"
#include "moodbarcontroller.h"
#include "moodbarloader.h"
#include "moodbarpipeline.h"
using std::make_shared;
MoodbarController::MoodbarController(const SharedPtr<Player> player, const SharedPtr<MoodbarLoader> moodbar_loader, QObject *parent)
: QObject(parent),
player_(player),
moodbar_loader_(moodbar_loader),
enabled_(false) {
ReloadSettings();
}
void MoodbarController::ReloadSettings() {
Settings s;
s.beginGroup(MoodbarSettings::kSettingsGroup);
enabled_ = s.value(MoodbarSettings::kEnabled, false).toBool();
s.endGroup();
}
void MoodbarController::CurrentSongChanged(const Song &song) {
if (!enabled_) return;
const MoodbarLoader::LoadResult load_result = moodbar_loader_->Load(song.url(), song.has_cue());
switch (load_result.status) {
case MoodbarLoader::LoadStatus::CannotLoad:
Q_EMIT CurrentMoodbarDataChanged(QByteArray());
break;
case MoodbarLoader::LoadStatus::Loaded:
Q_EMIT CurrentMoodbarDataChanged(load_result.data);
break;
case MoodbarLoader::LoadStatus::WillLoadAsync:
// Emit an empty array for now so the GUI reverts to a normal progressbar. Our slot will be called when the data is actually loaded.
Q_EMIT CurrentMoodbarDataChanged(QByteArray());
MoodbarPipelinePtr pipeline = load_result.pipeline;
Q_ASSERT(pipeline);
SharedPtr<QMetaObject::Connection> connection = make_shared<QMetaObject::Connection>();
*connection = QObject::connect(&*pipeline, &MoodbarPipeline::Finished, this, [this, connection, pipeline, song]() {
AsyncLoadComplete(pipeline, song.url());
QObject::disconnect(*connection);
});
break;
}
}
void MoodbarController::PlaybackStopped() {
if (enabled_) {
Q_EMIT CurrentMoodbarDataChanged(QByteArray());
}
}
void MoodbarController::AsyncLoadComplete(MoodbarPipelinePtr pipeline, const QUrl &url) {
// Is this song still playing?
PlaylistItemPtr current_item = player_->GetCurrentItem();
if (current_item && current_item->Url() != url) {
return;
}
// Did we stop the song?
switch (player_->GetState()) {
case EngineBase::State::Error:
case EngineBase::State::Empty:
case EngineBase::State::Idle:
return;
default:
break;
}
Q_EMIT CurrentMoodbarDataChanged(pipeline->data());
}