Initial implementation of qobuz-qt
- Rust backend (qobuz-backend static lib): Qobuz API client (reqwest/tokio), Symphonia audio decoder, CPAL audio output, extern "C" FFI bridge - Qt 6 frontend mirroring spotify-qt layout: toolbar with playback controls, left library dock, central track list, right search panel - Auth: email/password login with MD5-signed requests; session token persisted via QSettings - Playback: double-click a track → Rust fetches stream URL → Symphonia decodes → CPAL outputs to default audio device - Dark Fusion palette matching spotify-qt feel Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
joren
221
src/backend/qobuzbackend.cpp
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221
src/backend/qobuzbackend.cpp
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#include "qobuzbackend.hpp"
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#include <QJsonDocument>
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#include <QJsonArray>
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#include <QMetaObject>
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QobuzBackend::QobuzBackend(QObject *parent)
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: QObject(parent)
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{
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m_backend = qobuz_backend_new(&QobuzBackend::eventTrampoline, this);
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m_positionTimer = new QTimer(this);
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m_positionTimer->setInterval(500);
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connect(m_positionTimer, &QTimer::timeout, this, &QobuzBackend::onPositionTick);
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m_positionTimer->start();
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}
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QobuzBackend::~QobuzBackend()
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{
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if (m_backend) {
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qobuz_backend_free(m_backend);
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m_backend = nullptr;
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}
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}
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// ---- auth ----
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void QobuzBackend::login(const QString &email, const QString &password)
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{
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qobuz_backend_login(m_backend, email.toUtf8().constData(), password.toUtf8().constData());
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}
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void QobuzBackend::setToken(const QString &token)
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{
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qobuz_backend_set_token(m_backend, token.toUtf8().constData());
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}
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// ---- catalog ----
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void QobuzBackend::search(const QString &query, quint32 offset, quint32 limit)
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{
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qobuz_backend_search(m_backend, query.toUtf8().constData(), offset, limit);
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}
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void QobuzBackend::getAlbum(const QString &albumId)
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{
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qobuz_backend_get_album(m_backend, albumId.toUtf8().constData());
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}
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void QobuzBackend::getArtist(qint64 artistId)
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{
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qobuz_backend_get_artist(m_backend, artistId);
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}
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void QobuzBackend::getPlaylist(qint64 playlistId, quint32 offset, quint32 limit)
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{
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qobuz_backend_get_playlist(m_backend, playlistId, offset, limit);
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}
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// ---- favorites ----
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void QobuzBackend::getFavTracks(quint32 offset, quint32 limit)
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{
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qobuz_backend_get_fav_tracks(m_backend, offset, limit);
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}
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void QobuzBackend::getFavAlbums(quint32 offset, quint32 limit)
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{
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qobuz_backend_get_fav_albums(m_backend, offset, limit);
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}
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void QobuzBackend::getFavArtists(quint32 offset, quint32 limit)
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{
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qobuz_backend_get_fav_artists(m_backend, offset, limit);
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}
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void QobuzBackend::getUserPlaylists(quint32 offset, quint32 limit)
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{
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qobuz_backend_get_user_playlists(m_backend, offset, limit);
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}
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// ---- fav modification ----
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void QobuzBackend::addFavTrack(qint64 trackId)
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{
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qobuz_backend_add_fav_track(m_backend, trackId);
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}
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void QobuzBackend::removeFavTrack(qint64 trackId)
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{
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qobuz_backend_remove_fav_track(m_backend, trackId);
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}
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void QobuzBackend::addFavAlbum(const QString &albumId)
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{
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qobuz_backend_add_fav_album(m_backend, albumId.toUtf8().constData());
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}
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void QobuzBackend::removeFavAlbum(const QString &albumId)
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{
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qobuz_backend_remove_fav_album(m_backend, albumId.toUtf8().constData());
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}
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// ---- playback ----
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void QobuzBackend::playTrack(qint64 trackId, int formatId)
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{
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qobuz_backend_play_track(m_backend, trackId, formatId);
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}
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void QobuzBackend::pause()
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{
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qobuz_backend_pause(m_backend);
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}
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void QobuzBackend::resume()
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{
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qobuz_backend_resume(m_backend);
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}
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void QobuzBackend::stop()
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{
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qobuz_backend_stop(m_backend);
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}
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void QobuzBackend::setVolume(int volume)
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{
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qobuz_backend_set_volume(m_backend, static_cast<quint8>(qBound(0, volume, 100)));
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}
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quint64 QobuzBackend::position() const { return qobuz_backend_get_position(m_backend); }
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quint64 QobuzBackend::duration() const { return qobuz_backend_get_duration(m_backend); }
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int QobuzBackend::volume() const { return qobuz_backend_get_volume(m_backend); }
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int QobuzBackend::state() const { return qobuz_backend_get_state(m_backend); }
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// ---- private slots ----
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void QobuzBackend::onPositionTick()
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{
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emit positionChanged(position(), duration());
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if (qobuz_backend_take_track_finished(m_backend))
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emit trackFinished();
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}
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void QobuzBackend::onEvent(int eventType, const QString &json)
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{
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const QJsonObject obj = QJsonDocument::fromJson(json.toUtf8()).object();
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switch (eventType) {
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case EV_LOGIN_OK:
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emit loginSuccess(obj["token"].toString(), obj["user"].toObject());
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break;
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case EV_LOGIN_ERR:
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emit loginError(obj["error"].toString());
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break;
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case EV_SEARCH_OK:
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emit searchResult(obj);
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break;
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case EV_SEARCH_ERR:
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emit error(obj["error"].toString());
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break;
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case EV_ALBUM_OK:
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emit albumLoaded(obj);
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break;
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case EV_ALBUM_ERR:
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emit error(obj["error"].toString());
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break;
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case EV_ARTIST_OK:
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emit artistLoaded(obj);
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break;
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case EV_ARTIST_ERR:
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emit error(obj["error"].toString());
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break;
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case EV_PLAYLIST_OK:
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emit playlistLoaded(obj);
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break;
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case EV_PLAYLIST_ERR:
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emit error(obj["error"].toString());
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break;
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case EV_FAV_TRACKS_OK:
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emit favTracksLoaded(obj);
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break;
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case EV_FAV_ALBUMS_OK:
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emit favAlbumsLoaded(obj);
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break;
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case EV_FAV_ARTISTS_OK:
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emit favArtistsLoaded(obj);
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break;
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case EV_PLAYLISTS_OK:
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emit userPlaylistsLoaded(obj);
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break;
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case EV_TRACK_CHANGED:
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emit trackChanged(obj);
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break;
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case EV_STATE_CHANGED:
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emit stateChanged(obj["state"].toString());
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break;
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case EV_GENERIC_ERR:
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case EV_TRACK_URL_ERR:
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emit error(obj["error"].toString());
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break;
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default:
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break;
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}
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}
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// ---- static trampoline ----
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void QobuzBackend::eventTrampoline(void *userdata, int eventType, const char *json)
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{
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auto *self = static_cast<QobuzBackend *>(userdata);
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// Marshal from Rust thread → Qt main thread
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QMetaObject::invokeMethod(
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self,
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"onEvent",
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Qt::QueuedConnection,
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Q_ARG(int, eventType),
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Q_ARG(QString, QString::fromUtf8(json))
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);
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}
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94
src/backend/qobuzbackend.hpp
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94
src/backend/qobuzbackend.hpp
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@@ -0,0 +1,94 @@
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#pragma once
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#include "qobuz_backend.h"
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#include <QObject>
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#include <QString>
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#include <QJsonObject>
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#include <QTimer>
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/// Qt wrapper around the Rust qobuz-backend static library.
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///
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/// All signals are emitted on the Qt main thread regardless of which thread
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/// the Rust callback fires on (marshalled via QMetaObject::invokeMethod with
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/// Qt::QueuedConnection).
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class QobuzBackend : public QObject
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{
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Q_OBJECT
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public:
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explicit QobuzBackend(QObject *parent = nullptr);
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~QobuzBackend() override;
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// --- auth ---
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void login(const QString &email, const QString &password);
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void setToken(const QString &token);
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// --- catalog ---
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void search(const QString &query, quint32 offset = 0, quint32 limit = 20);
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void getAlbum(const QString &albumId);
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void getArtist(qint64 artistId);
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void getPlaylist(qint64 playlistId, quint32 offset = 0, quint32 limit = 500);
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// --- favorites ---
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void getFavTracks(quint32 offset = 0, quint32 limit = 500);
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void getFavAlbums(quint32 offset = 0, quint32 limit = 200);
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void getFavArtists(quint32 offset = 0, quint32 limit = 200);
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void getUserPlaylists(quint32 offset = 0, quint32 limit = 200);
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// --- fav modification ---
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void addFavTrack(qint64 trackId);
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void removeFavTrack(qint64 trackId);
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void addFavAlbum(const QString &albumId);
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void removeFavAlbum(const QString &albumId);
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// --- playback ---
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void playTrack(qint64 trackId, int formatId = 6);
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void pause();
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void resume();
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void stop();
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void setVolume(int volume);
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quint64 position() const;
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quint64 duration() const;
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int volume() const;
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/// 1 = playing, 2 = paused, 0 = idle
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int state() const;
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signals:
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// auth
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void loginSuccess(const QString &token, const QJsonObject &user);
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void loginError(const QString &error);
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// catalog
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void searchResult(const QJsonObject &result);
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void albumLoaded(const QJsonObject &album);
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void artistLoaded(const QJsonObject &artist);
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void playlistLoaded(const QJsonObject &playlist);
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// favorites
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void favTracksLoaded(const QJsonObject &result);
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void favAlbumsLoaded(const QJsonObject &result);
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void favArtistsLoaded(const QJsonObject &result);
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void userPlaylistsLoaded(const QJsonObject &result);
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// playback
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void trackChanged(const QJsonObject &track);
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void stateChanged(const QString &state);
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void positionChanged(quint64 position, quint64 duration);
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void trackFinished();
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// errors
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void error(const QString &message);
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private slots:
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Q_INVOKABLE void onEvent(int eventType, const QString &json);
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void onPositionTick();
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private:
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QobuzBackendOpaque *m_backend = nullptr;
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QTimer *m_positionTimer = nullptr;
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// Static trampoline called from Rust threads
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static void eventTrampoline(void *userdata, int eventType, const char *json);
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};
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