add a bluetooth backend to track bluetooth being enabled, being hard/soft blocked, and its devices.

1 files changed, 97 insertions, 0 deletions

diff --git a/src/bluez.vala b/src/bluez.vala
new file mode 100644
index 0000000..178cc57
--- /dev/null
+++ b/src/bluez.vala
@@ -0,0 +1,97 @@
+/*
+ * 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>
+ */
+
+public class Bluez: Bluetooth
+{
+  private org.bluez.Manager manager;
+  private org.bluez.Adapter default_adapter;
+
+  public Bluez (KillSwitch kill_switch)
+  {
+    string default_adapter_object_path = null;
+
+    base (kill_switch);
+
+    try
+      {
+        manager = Bus.get_proxy_sync (BusType.SYSTEM, "org.bluez", "/");
+
+        manager.default_adapter_changed.connect ((object_path) => on_default_adapter_changed (object_path));
+        default_adapter_object_path = manager.default_adapter ();
+      }
+    catch (Error e)
+     {
+       critical ("%s", e.message);
+     }
+
+    on_default_adapter_changed (default_adapter_object_path);
+  }
+
+  private void on_default_adapter_changed (string? object_path)
+  {
+    if (object_path != null) try
+      {
+        message ("using default adapter at %s", object_path);
+        this.default_adapter = Bus.get_proxy_sync (BusType.SYSTEM, "org.bluez", object_path);
+        this.default_adapter.property_changed.connect(() => this.on_default_adapter_properties_changed());
+      }
+    catch (Error e)
+      {
+       critical ("%s", e.message);
+      }
+
+    this.on_default_adapter_properties_changed ();
+  }
+
+  private void on_default_adapter_properties_changed ()
+  {
+    bool is_discoverable = false;
+    bool is_powered = false;
+
+    if (this.default_adapter != null) try
+      {
+        var properties = this.default_adapter.get_properties();
+
+        var v = properties.lookup("Discoverable");
+        is_discoverable = (v != null) && v.get_boolean ();
+
+        v = properties.lookup("Powered");
+        is_powered = (v != null) && v.get_boolean ();
+      }
+    catch (Error e) 
+     {
+       critical ("%s", e.message);
+     }
+
+    this.powered = is_powered;
+    this.discoverable = is_discoverable;
+  }
+
+  public override void try_set_discoverable (bool b)
+  {
+    if (discoverable != b) try
+      {
+        this.default_adapter.set_property ("Discoverable", new Variant.boolean(b));
+      }
+    catch (Error e)
+      {
+        critical ("%s", e.message);
+      }
+  }
+}