Add datetimetz module for timezone information in date display

Allow multiple comma seperated timezones

Handle click to cycle through configured timezones
Example:
```
bumblebee-status -m datetimetz -p \
datetimetz.timezone=\
"Australia/Sydney,Pacific/Auckland,America/Los_Angeles"
```
Added dependencies to travis config

.travis.yml

@@ -16,6 +16,8 @@ install:
   - pip install -U coverage==4.3
   - pip install codeclimate-test-reporter
   - pip install taskw
+  - pip install pytz
+  - pip install tzlocal
 script:
   - nosetests -v --with-coverage --cover-erase tests/
   - CODECLIMATE_REPO_TOKEN=40cb00907f7a10e04868e856570bb997ab9c42fd3b63d980f2b2269433195fdf codeclimate-test-reporter

PKGBUILD

@@ -20,7 +20,9 @@ optdepends=('xorg-xbacklight: to display a displays brightness'
             'pacman: display current status of pacman'
             'iputils: display a ping'
             'i3ipc-python: display titlebar'
-            'fakeroot: dependency of the pacman module')
+            'fakeroot: dependency of the pacman module'
+            'pytz: timezone conversion for datetimetz module'
+            'tzlocal: retrieve system timezone for datetimetz module')
 source=("$pkgname-$pkgver.tar.gz::$url/archive/v$pkgver.tar.gz")
 sha512sums=('3a66fc469dd3b081337c9e213a1b2262f25f30977ee6ef65b9fa5a8b6aa341637832d1a5dbb74e30d68e2824e0d19d7a911eb3390dc6062707a552f429b483e8')
 

README.md

@@ -186,6 +186,8 @@ Modules and commandline utilities are only required for modules, the core itself
 * i3ipc (for the module 'title')
 * pacman-contrib (for module 'arch-update')
 * docker (for the module 'docker_ps')
+* pytz (for the module 'datetimetz')
+* localtz (for the module 'datetimetz')
 
 # Required commandline utilities
 

bumblebee/modules/datetimetz.py

@@ -0,0 +1,79 @@
+# pylint: disable=C0111,R0903
+
+"""Displays the current date and time with timezone options.
+
+Parameters:
+    * datetimetz.format   : strftime()-compatible formatting string
+    * datetimetz.timezone : IANA timezone name
+    * datetz.format       : alias for datetimetz.format
+    * timetz.format       : alias for datetimetz.format
+    * timetz.timezone     : alias for datetimetz.timezone
+    * datetimetz.locale   : locale to use rather than the system default
+    * datetz.locale       : alias for datetimetz.locale
+    * timetz.locale       : alias for datetimetz.locale
+    * timetz.timezone     : alias for datetimetz.timezone
+"""
+
+from __future__ import absolute_import
+import datetime
+import locale
+import pytz
+import tzlocal
+import bumblebee.input
+import bumblebee.output
+import bumblebee.engine
+
+ALIASES = ["datetz", "timetz"]
+
+def default_format(module):
+    default = "%x %X %Z"
+    if module == "datetz":
+        default = "%x %Z"
+    if module == "timetz":
+        default = "%X %Z"
+    return default
+
+class Module(bumblebee.engine.Module):
+    def __init__(self, engine, config):
+        super(Module, self).__init__(engine, config,
+            bumblebee.output.Widget(full_text=self.get_time))
+        engine.input.register_callback(self, button=bumblebee.input.LEFT_MOUSE, cmd=self.next_tz)
+        engine.input.register_callback(self, button=bumblebee.input.RIGHT_MOUSE, cmd=self.prev_tz)
+        self._fmt = self.parameter("format", default_format(self.name))
+        self._timezones = self.parameter("timezone", tzlocal.get_localzone().zone).split(",")
+        self._current_tz = 0
+
+        l = locale.getdefaultlocale()
+        if not l or l == (None, None):
+            l = ('en_US', 'UTF-8')
+        lcl = self.parameter("locale", ".".join(l))
+        try:
+            locale.setlocale(locale.LC_TIME, lcl.split("."))
+        except Exception:
+            locale.setlocale(locale.LC_TIME, ('en_US', 'UTF-8'))
+
+    def get_time(self, widget):
+        try:
+            tz = pytz.timezone(self._timezones[self._current_tz].strip())
+            retval = datetime.datetime.now(tz=tzlocal.get_localzone()).astimezone(tz).strftime(self._fmt)
+        except pytz.exceptions.UnknownTimeZoneError:
+            retval = "[Unknown timezone: {}]".format(self._timezones[self._current_tz].strip())
+
+        enc = locale.getpreferredencoding()
+        if hasattr(retval, "decode"):
+            return retval.decode(enc)
+        return retval
+
+    def next_tz(self, event):
+        next_timezone = self._current_tz + 1
+        if next_timezone >= len(self._timezones):
+            next_timezone = 0     # wraparound
+        self._current_tz = next_timezone
+
+    def prev_tz(self, event):
+        previous_timezone = self._current_tz - 1
+        if previous_timezone < 0:
+            previous_timezone = 0     # wraparound
+        self._current_tz = previous_timezone
+
+# vim: tabstop=8 expandtab shiftwidth=4 softtabstop=4

themes/icons/awesome-fonts.json

@@ -6,6 +6,9 @@
 	"date": { "prefix": ""	},
 	"time": { "prefix": "" },
 	"datetime": { "prefix": "" },
+	"datetz": { "prefix": ""	},
+	"timetz": { "prefix": "" },
+	"datetimetz": { "prefix": "" },
 	"memory": { "prefix": "" },
 	"cpu": { "prefix": "" },
 	"disk": { "prefix": "" },