Simple bluetooth module with toggling and status display

bumblebee/modules/bluetooth.py

@@ -0,0 +1,96 @@
+"""Displays bluetooth status (Bluez). Left mouse click launches manager app,
+right click toggles bluetooth. Needs dbus-send to toggle bluetooth state.
+
+Parameters:
+    * bluetooth.device : the device to read state from (default is hci0)
+    * bluetooth.manager : application to launch on click (blueman-manager)
+
+"""
+
+
+import os
+import re
+import bumblebee.input
+import bumblebee.output
+import bumblebee.engine
+import bumblebee.util
+
+
+class Module(bumblebee.engine.Module):
+    """Bluetooth module."""
+
+    def __init__(self, engine, config):
+        """Initialize."""
+        super(Module, self).__init__(engine, config,
+                                     bumblebee.output.Widget(
+                                         full_text=self.status))
+
+        device = self.parameter("device", "hci0")
+        self.manager = self.parameter("manager", "blueman-manager")
+        self._path = "/sys/class/bluetooth/{}".format(device)
+        self._status = "Off"
+
+        engine.input.register_callback(self, button=bumblebee.input.LEFT_MOUSE,
+                                       cmd=self.manager)
+        engine.input.register_callback(self,
+                                       button=bumblebee.input.RIGHT_MOUSE,
+                                       cmd=self.toggle)
+
+    def status(self, widget):
+        """Get status."""
+        return self._status
+
+    def update(self, widgets):
+        """Update current state."""
+        if not os.path.exists(self._path):
+            self._status = "?"
+            return
+
+        # search for whichever rfkill directory available
+        try:
+            dirnames = next(os.walk(self._path))[1]
+            for dirname in dirnames:
+                m = re.match(r"rfkill[0-9]+", dirname)
+                if m is not None:
+                    with open(os.path.join(self._path,
+                                           dirname,
+                                           'state'), 'r') as f:
+                        state = int(f.read())
+                        if state == 1:
+                            self._status = "On"
+                        else:
+                            self._status = "Off"
+                    return
+
+        except IOError:
+            self._status = "?"
+
+    def manager(self, widget):
+        """Launch manager."""
+        bumblebee.util.execute(self.manager)
+
+    def toggle(self, widget):
+        """Toggle bluetooth state."""
+        if self._status == "On":
+            state = "false"
+        else:
+            state = "true"
+
+        cmd = "dbus-send --system --dest=org.blueman.Mechanism"\
+              " / org.blueman.Mechanism.SetRfkillState"\
+              " boolean:{}".format(state)
+
+        bumblebee.util.execute(cmd)
+
+    def state(self, widget):
+        """Get current state."""
+        state = []
+
+        if self._status == "?":
+            state = ["unknown"]
+        elif self._status == "On":
+            state = ["ON"]
+        else:
+            state = ["OFF"]
+
+        return state

themes/gruvbox-powerline.json

@@ -37,5 +37,11 @@
 			"fg": "#1d2021",
 			"bg": "#b8bb26"
 		}
+	},
+  "bluetooth": {
+      "ON": {
+			    "fg": "#1d2021",
+			    "bg": "#b8bb26"
+      }
   }
 }

themes/gruvbox.json

@@ -37,5 +37,11 @@
 			"fg": "#1d2021",
 			"bg": "#b8bb26"
 		}
+  },
+  "bluetooth": {
+      "ON": {
+			    "fg": "#1d2021",
+			    "bg": "#b8bb26"
+      }
 	}
 }

themes/icons/awesome-fonts.json

@@ -54,6 +54,11 @@
 		"tunnel-up": { "prefix": "" },
 		"tunnel-down": { "prefix": "" }
 	},
+    "bluetooth": {
+        "ON": { "prefix": "" },
+        "OFF": { "prefix": "" },
+        "?": { "prefix": "" }
+    },
 	"battery": {
 		"charged": { "prefix": "", "suffix": "" },
 		"AC": { "suffix": "" },