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/*
* Copyright 2013 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* Authors:
* Charles Kerr <charles.kerr@canonical.com>
*/
/**
* Abstract interface for the Bluetooth backend.
*/
public interface Bluetooth: Object
{
/* True if there are any bluetooth adapters on this system.
This work as a proxy for "does this hardware support bluetooth?" */
public abstract bool supported { get; protected set; }
/* True if there are any bluetooth adapters powered up on the system.
In short, whether or not this system's bluetooth is "on". */
public abstract bool powered { get; protected set; }
/* True if our system can be seen by other bluetooth devices */
public abstract bool discoverable { get; protected set; }
public abstract void try_set_discoverable (bool discoverable);
/* True if bluetooth's blocked. This can be soft-blocked by software and
* hard-blocked physically, eg by a laptop's network killswitch */
public abstract bool blocked { get; protected set; }
/* Try to block/unblock bluetooth. This can fail if it's overridden
by the system, eg by a laptop's network killswitch */
public abstract void try_set_blocked (bool b);
/* Get a list of the Device structs that we know about */
public abstract List<unowned Device> get_devices ();
/* Emitted when one or more of the devices is added, removed, or changed */
public signal void devices_changed ();
/* Try to connect/disconnect a particular device.
The device_key argument comes from the Device struct */
public abstract void set_device_connected (uint device_key, bool connected);
}
/**
* Base class for Bluetooth objects that use a killswitch to implement
* the 'discoverable' property.
*/
public abstract class KillswitchBluetooth: Object, Bluetooth
{
private KillSwitch killswitch;
public KillswitchBluetooth (KillSwitch killswitch)
{
// always sync our 'blocked' property with the one in killswitch
this.killswitch = killswitch;
blocked = killswitch.blocked;
killswitch.notify["blocked"].connect (() => blocked = killswitch.blocked );
}
public bool supported { get; protected set; default = false; }
public bool powered { get; protected set; default = false; }
public bool discoverable { get; protected set; default = false; }
public bool blocked { get; protected set; default = true; }
public void try_set_blocked (bool b) { killswitch.try_set_blocked (b); }
// empty implementations
public abstract void try_set_discoverable (bool b);
public abstract List<unowned Device> get_devices ();
public abstract void set_device_connected (uint device_key, bool connected);
}
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