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/*
* Cantata
*
* Copyright (c) 2011-2022 Craig Drummond <craig.p.drummond@gmail.com>
*
* ----
*
* This program 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 2 of the License, or
* (at your option) any later version.
*
* This program 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 this program; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include "gnomemediakeys.h"
#include "mediakeysinterface.h"
#include "settingsdaemoninterface.h"
#include <QCoreApplication>
#include <QDBusConnection>
#include <QDBusConnectionInterface>
#include <QDBusPendingCallWatcher>
#include <QDBusPendingReply>
#include <QDBusServiceWatcher>
static const char* constOrigService = "org.gnome.SettingsDaemon";
static const char* constNewService = "org.gnome.SettingsDaemon.MediaKeys";
static const char* constDaemonPath = "/org/gnome/SettingsDaemon";
static const char* constMediaKeysPath = "/org/gnome/SettingsDaemon/MediaKeys";
GnomeMediaKeys::GnomeMediaKeys(QObject* p)
: MultiMediaKeysInterface(p), daemon(nullptr), mk(nullptr), watcher(nullptr)
{
}
bool GnomeMediaKeys::activate()
{
if (mk) {
return true;
}
if (daemonIsRunning()) {
grabKeys();
return true;
}
return false;
}
void GnomeMediaKeys::deactivate()
{
if (mk) {
releaseKeys();
disconnectDaemon();
if (watcher) {
watcher->deleteLater();
watcher = nullptr;
}
}
}
bool GnomeMediaKeys::daemonIsRunning()
{
// Check if the service is available
if (!QDBusConnection::sessionBus().interface()->isServiceRegistered(constNewService) && !QDBusConnection::sessionBus().interface()->isServiceRegistered(constOrigService)) {
//...not already started, so attempt to start!
QDBusConnection::sessionBus().interface()->startService(constOrigService);// ??
if (!daemon) {
daemon = new OrgGnomeSettingsDaemonInterface(constOrigService, constDaemonPath, QDBusConnection::sessionBus(), this);
connect(daemon, SIGNAL(PluginActivated(QString)), this, SLOT(pluginActivated(QString)));
daemon->Start();
return false;
}
}
return true;
}
void GnomeMediaKeys::releaseKeys()
{
if (mk) {
mk->ReleaseMediaPlayerKeys(QCoreApplication::applicationName());
disconnect(mk, SIGNAL(MediaPlayerKeyPressed(QString, QString)), this, SLOT(keyPressed(QString, QString)));
mk->deleteLater();
mk = nullptr;
}
}
void GnomeMediaKeys::grabKeys()
{
QStringList services{constNewService, constOrigService};
for (const auto& service : services) {
if (QDBusConnection::sessionBus().interface()->isServiceRegistered(service)) {
if (!mk) {
mk = new OrgGnomeSettingsDaemonMediaKeysInterface(service, constMediaKeysPath, QDBusConnection::sessionBus(), this);
}
QDBusPendingReply<> reply = mk->GrabMediaPlayerKeys(QCoreApplication::applicationName(), QDateTime::currentDateTime().toSecsSinceEpoch());
QDBusPendingCallWatcher* callWatcher = new QDBusPendingCallWatcher(reply, this);
connect(callWatcher, SIGNAL(finished(QDBusPendingCallWatcher*)), this, SLOT(registerFinished(QDBusPendingCallWatcher*)));
if (!watcher) {
watcher = new QDBusServiceWatcher(this);
watcher->setConnection(QDBusConnection::sessionBus());
watcher->setWatchMode(QDBusServiceWatcher::WatchForOwnerChange);
connect(watcher, SIGNAL(serviceOwnerChanged(QString, QString, QString)), this, SLOT(serviceOwnerChanged(QString, QString, QString)));
}
serviceName = service;
break;
}
}
}
void GnomeMediaKeys::disconnectDaemon()
{
if (daemon) {
disconnect(daemon, SIGNAL(PluginActivated(QString)), this, SLOT(pluginActivated(QString)));
daemon->deleteLater();
daemon = nullptr;
}
}
void GnomeMediaKeys::serviceOwnerChanged(const QString& name, const QString&, const QString&)
{
if (name == serviceName) {
releaseKeys();
disconnectDaemon();
if (daemonIsRunning()) {
grabKeys();
}
}
}
void GnomeMediaKeys::registerFinished(QDBusPendingCallWatcher* watcher)
{
QDBusMessage reply = watcher->reply();
watcher->deleteLater();
if (QDBusMessage::ErrorMessage != reply.type()) {
connect(mk, SIGNAL(MediaPlayerKeyPressed(QString, QString)), this, SLOT(keyPressed(QString, QString)));
disconnectDaemon();
}
}
void GnomeMediaKeys::keyPressed(const QString& app, const QString& key)
{
if (QCoreApplication::applicationName() != app) {
return;
}
if (QLatin1String("Play") == key) {
emit playPause();
}
else if (QLatin1String("Stop") == key) {
emit stop();
}
else if (QLatin1String("Next") == key) {
emit next();
}
else if (QLatin1String("Previous") == key) {
emit previous();
}
}
void GnomeMediaKeys::pluginActivated(const QString& name)
{
if (QLatin1String("media-keys") == name) {
grabKeys();
}
}
#include "moc_gnomemediakeys.cpp"
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