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/*
* -*- Mode:Vala; indent-tabs-mode:t; tab-width:4; encoding:utf8 -*-
* Copyright 2015 Canonical Ltd.
*
* 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; version 3.
*
* 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/>.
*
* Authors:
* Ted Gould <ted@canonical.com>
*/
public abstract class VolumeControl : Object
{
public enum VolumeReasons {
PULSE_CHANGE,
ACCOUNTS_SERVICE_SET,
DEVICE_OUTPUT_CHANGE,
USER_KEYPRESS,
VOLUME_STREAM_CHANGE
}
public enum ActiveOutput {
SPEAKERS,
HEADPHONES,
BLUETOOTH_HEADPHONES,
BLUETOOTH_SPEAKER,
USB_SPEAKER,
USB_HEADPHONES,
HDMI_SPEAKER,
HDMI_HEADPHONES,
CALL_MODE
}
public enum Stream {
ALERT,
MULTIMEDIA,
ALARM,
PHONE
}
public class Volume : Object {
public double volume;
public VolumeReasons reason;
}
protected IndicatorSound.Options _options = null;
protected VolumeControl(IndicatorSound.Options options) {
_options = options;
}
public Stream active_stream { get; protected set; default = Stream.ALERT; }
public bool ready { get; protected set; default = false; }
public virtual bool active_mic { get { return false; } set { } }
public virtual bool mute { get { return false; } }
public bool is_playing { get; protected set; default = false; }
private Volume _volume;
private double _pre_clamp_volume;
public virtual Volume volume { get { return _volume; } set { } }
public virtual double mic_volume { get { return 0.0; } set { } }
public abstract void set_mute (bool mute);
public void set_volume_clamp (double unclamped, VolumeControl.VolumeReasons reason) {
var v = new VolumeControl.Volume();
v.volume = unclamped.clamp (0.0, _options.max_volume);
v.reason = reason;
this.volume = v;
_pre_clamp_volume = unclamped;
}
public double get_pre_clamped_volume () {
return _pre_clamp_volume;
}
public abstract VolumeControl.ActiveOutput active_output();
public signal void active_output_changed (VolumeControl.ActiveOutput active_output);
}
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