1 files changed, 133 insertions, 0 deletions
diff --git a/volumecontroller.cpp b/volumecontroller.cpp
new file mode 100644
index 0000000..5fc19f5
--- /dev/null
+++ b/volumecontroller.cpp
@@ -0,0 +1,133 @@
+/*
+ *  libwatchfish - library with common functionality for SailfishOS smartwatch connector programs.
+ *  Copyright (C) 2016 Javier S. Pedro <dev.git@javispedro.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 3 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.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "volumecontroller.h"
+#include "volumecontroller_p.h"
+
+namespace watchfish
+{
+
+Q_LOGGING_CATEGORY(volumeControllerCat, "watchfish-VolumeController")
+
+static const char *VOLUME_SERVICE = "com.Meego.MainVolume2";
+static const char *VOLUME_PATH = "/com/meego/mainvolume2";
+
+VolumeControllerPrivate::VolumeControllerPrivate(VolumeController *q)
+	: volume(0),
+      curValue(0), curMaximum(0),
+      q_ptr(q)
+{
+	const QString address = connectionAddress();
+	QDBusConnection connection = QDBusConnection::connectToPeer(address, "pulse");
+
+	volume = new ComMeegoMainVolume2Interface(VOLUME_SERVICE, VOLUME_PATH, connection, this);
+
+	connect(volume, &ComMeegoMainVolume2Interface::StepsUpdated,
+	        this, &VolumeControllerPrivate::handleStepsUpdated);
+	if (volume->isValid()) {
+		handleStepsUpdated(volume->stepCount(), volume->currentStep());
+	}
+}
+
+VolumeControllerPrivate::~VolumeControllerPrivate()
+{
+}
+
+QString VolumeControllerPrivate::connectionAddress()
+{
+	if (qEnvironmentVariableIsSet("PULSE_DBUS_SERVER")) {
+		return QString::fromLocal8Bit(qgetenv("PULSE_DBUS_SERVER"));
+	} else {
+		QDBusConnection bus = QDBusConnection::sessionBus();
+		QDBusMessage message = QDBusMessage::createMethodCall("org.pulseaudio.Server", "/org/pulseaudio/server_lookup1",
+			"org.freedesktop.DBus.Properties", "Get");
+		message.setArguments(QVariantList() << "org.PulseAudio.ServerLookup1" << "Address");
+		QDBusMessage reply = bus.call(message);
+		if (reply.type() == QDBusMessage::ReplyMessage && reply.arguments().count() > 0) {
+			return reply.arguments().first().value<QDBusVariant>().variant().toString();
+		}
+	}
+
+	return QString();
+}
+
+void VolumeControllerPrivate::handleStepsUpdated(uint StepCount, uint CurrentStep)
+{
+	Q_Q(VolumeController);
+	qCDebug(volumeControllerCat) << "updated stuff";
+	const int oldValue = curValue, oldMaximum = curMaximum;
+	curValue = CurrentStep;
+	curMaximum = StepCount;
+	if (oldMaximum != 0) {
+		qCDebug(volumeControllerCat) << "Volume updated" << curValue << "/" << curMaximum;
+	}
+	if (curMaximum != oldMaximum) {
+		emit q->maximumChanged();
+	}
+	if (curValue != oldValue) {
+		emit q->valueChanged();
+	}
+}
+
+VolumeController::VolumeController(QObject *parent)
+    : QObject(parent), d_ptr(new VolumeControllerPrivate(this))
+{
+}
+
+VolumeController::~VolumeController()
+{
+}
+
+int VolumeController::value() const
+{
+	Q_D(const VolumeController);
+	return d->volume->currentStep();
+}
+
+int VolumeController::minimum() const
+{
+	return 0;
+}
+
+int VolumeController::maximum() const
+{
+	Q_D(const VolumeController);
+	return d->volume->stepCount();
+}
+
+void VolumeController::setValue(int v)
+{
+	Q_D(const VolumeController);
+	qCDebug(volumeControllerCat) << "Setting volume to" << v;
+	if (!d->volume->isValid()) {
+		qCWarning(volumeControllerCat) << "Lost connection to volume interface";
+	}
+	d->volume->setCurrentStep(v);
+}
+
+void VolumeController::up()
+{
+	setValue(value() + 1);
+}
+
+void VolumeController::down()
+{
+	setValue(value() - 1);
+}
+
+}