Add global shortcuts support on MATE

src/globalshortcuts/globalshortcutsbackend-gnome.cpp

@@ -0,0 +1,121 @@
+/*
+ * Strawberry Music Player
+ * This file was part of Clementine.
+ * Copyright 2010, David Sansome <me@davidsansome.com>
+ * Copyright 2019-2021, 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 "config.h"
+
+#include <dbus/gnomesettingsdaemon.h>
+
+#include <QObject>
+#include <QCoreApplication>
+#include <QDateTime>
+#include <QDBusConnection>
+#include <QDBusMessage>
+#include <QDBusPendingCallWatcher>
+#include <QDBusPendingReply>
+#include <QAction>
+#include <QtDebug>
+
+#include "core/logging.h"
+#include "globalshortcutsmanager.h"
+#include "globalshortcutsbackend.h"
+#include "globalshortcutsbackend-gnome.h"
+
+const char *GlobalShortcutsBackendGnome::kService1 = "org.gnome.SettingsDaemon.MediaKeys";
+const char *GlobalShortcutsBackendGnome::kService2 = "org.gnome.SettingsDaemon";
+const char *GlobalShortcutsBackendGnome::kPath = "/org/gnome/SettingsDaemon/MediaKeys";
+
+GlobalShortcutsBackendGnome::GlobalShortcutsBackendGnome(GlobalShortcutsManager *parent)
+    : GlobalShortcutsBackend(parent),
+      interface_(nullptr),
+      is_connected_(false) {}
+
+bool GlobalShortcutsBackendGnome::IsAvailable() {
+
+  return QDBusConnection::sessionBus().interface()->isServiceRegistered(kService1) || QDBusConnection::sessionBus().interface()->isServiceRegistered(kService2);
+
+}
+
+bool GlobalShortcutsBackendGnome::DoRegister() {
+
+  qLog(Debug) << "Registering";
+
+  if (!interface_) {
+    if (QDBusConnection::sessionBus().interface()->isServiceRegistered(kService1)) {
+      interface_ = new OrgGnomeSettingsDaemonMediaKeysInterface(kService1, kPath, QDBusConnection::sessionBus(), this);
+    }
+    else if (QDBusConnection::sessionBus().interface()->isServiceRegistered(kService2)) {
+      interface_ = new OrgGnomeSettingsDaemonMediaKeysInterface(kService2, kPath, QDBusConnection::sessionBus(), this);
+    }
+  }
+
+  if (!interface_) {
+    qLog(Warning) << "Gnome settings daemon not registered";
+    return false;
+  }
+
+  QDBusPendingReply<> reply = interface_->GrabMediaPlayerKeys(QCoreApplication::applicationName(), QDateTime::currentDateTime().toSecsSinceEpoch());
+
+  QDBusPendingCallWatcher *watcher = new QDBusPendingCallWatcher(reply, this);
+  QObject::connect(watcher, &QDBusPendingCallWatcher::finished, this, &GlobalShortcutsBackendGnome::RegisterFinished);
+
+  return true;
+
+}
+
+void GlobalShortcutsBackendGnome::RegisterFinished(QDBusPendingCallWatcher *watcher) {
+
+  QDBusMessage reply = watcher->reply();
+  watcher->deleteLater();
+
+  if (reply.type() == QDBusMessage::ErrorMessage) {
+    qLog(Warning) << "Failed to grab media keys" << reply.errorName() <<reply.errorMessage();
+    return;
+  }
+
+  QObject::connect(interface_, &OrgGnomeSettingsDaemonMediaKeysInterface::MediaPlayerKeyPressed, this, &GlobalShortcutsBackendGnome::GnomeMediaKeyPressed);
+  is_connected_ = true;
+
+  qLog(Debug) << "Registered.";
+
+}
+
+void GlobalShortcutsBackendGnome::DoUnregister() {
+
+  qLog(Debug) << "Unregister";
+
+  if (!IsAvailable() || !interface_ || !is_connected_) return;
+
+  is_connected_ = false;
+
+  interface_->ReleaseMediaPlayerKeys(QCoreApplication::applicationName());
+  QObject::disconnect(interface_, &OrgGnomeSettingsDaemonMediaKeysInterface::MediaPlayerKeyPressed, this, &GlobalShortcutsBackendGnome::GnomeMediaKeyPressed);
+
+}
+
+void GlobalShortcutsBackendGnome::GnomeMediaKeyPressed(const QString&, const QString &key) {
+
+  auto shortcuts = manager_->shortcuts();
+  if (key == "Play") shortcuts["play_pause"].action->trigger();
+  if (key == "Stop") shortcuts["stop"].action->trigger();
+  if (key == "Next") shortcuts["next_track"].action->trigger();
+  if (key == "Previous") shortcuts["prev_track"].action->trigger();
+
+}