[module/batterytimeleft] Add basic battery time left module

bumblebee/modules/batterytimeleft.py

@@ -0,0 +1,57 @@
+"""Displays how much battery time is left.
+
+Requires the following library:
+    * power
+"""
+
+import os
+import glob
+import functools
+
+import bumblebee.input
+import bumblebee.output
+import bumblebee.engine
+import bumblebee.util
+
+try:
+    import power
+except ImportError:
+    pass
+
+class Module(bumblebee.engine.Module):
+    def __init__(self, engine, config):
+        super(Module, self).__init__(engine, config,
+                                     bumblebee.output.Widget(full_text=self.estimate)
+                                     )
+        self._estimate = "n/a"
+        engine.input.register_callback(self, button=bumblebee.input.LEFT_MOUSE,
+            cmd="gnome-power-statistics")
+        immediate_update = functools.partial(self.update)
+        engine.input.register_callback(self, button=bumblebee.input.RIGHT_MOUSE,
+                                       cmd=immediate_update)
+
+    def estimate(self, _):
+        return str(self._estimate)
+
+    def state(self, widget):
+        if self._estimate == "Unlimited":
+            return "unlimited"
+        return "estimate"
+
+    def update(self, _):
+        try:
+            type = power.PowerManagement().get_providing_power_source_type()
+            estimate = power.PowerManagement().get_time_remaining_estimate()
+
+            if type == power.POWER_TYPE_AC and estimate == -2.0:
+                self._estimate = "Unlimited"
+            elif estimate == -1.0:
+                self._estimate = "Unknown"
+            else:
+                self._estimate = str(round(estimate / 60, 1)) + ' h'
+
+        except Exception as e:
+            print (e)
+            self._estimate = "n/a"
+
+# vim: tabstop=8 expandtab shiftwidth=4 softtabstop=4

themes/icons/awesome-fonts.json

@@ -119,5 +119,9 @@
     "snow": { "prefix": "" },
     "clear": { "prefix": "" },
     "thunder": { "prefix": "" }
+  },
+  "batterytimeleft": {
+	  "unlimited": { "prefix": "", "suffix": "" },
+	  "estimate": {	"prefix": ""  }
   }
 }