# HG changeset patch
# User Paul Boddie <paul@boddie.org.uk>
# Date 1426001926 -3600
# Node ID 1a2872e3a48296209333f356d5426dbd69c0b74c
# Parent  15fe57c7fbc15b4c8548226226da4a846939f90d
Made a separate method for showing time regime menus, adding the full range of
Olson database choices.

diff -r 15fe57c7fbc1 -r 1a2872e3a482 imip_manager.py
--- a/imip_manager.py	Mon Mar 09 22:35:23 2015 +0100
+++ b/imip_manager.py	Tue Mar 10 16:38:46 2015 +0100
@@ -26,6 +26,7 @@
 
 from datetime import date, datetime, timedelta
 import babel.dates
+import pytz
 import cgi, os, sys
 
 sys.path.append(LIBRARY_PATH)
@@ -1912,12 +1913,19 @@
         page.add(":")
         page.input(name="%s-second" % name, type="text", value=second, maxlength=2, size=2)
         page.add(" ")
-        self._show_menu("%s-tzid" % name, event_tzid,
-            [(event_tzid, event_tzid)] + (
-            event_tzid != tzid and [(tzid, tzid)] or []
-            ))
+        self._show_timezone_menu("%s-tzid" % name, event_tzid)
         page.span.close()
 
+    def _show_timezone_menu(self, name, default):
+
+        """
+        Show timezone controls using a menu with the given 'name', set to the
+        given 'default' unless a field of the given 'name' provides a value.
+        """
+
+        entries = [(tzid, tzid) for tzid in pytz.all_timezones]
+        self._show_menu(name, default, entries)
+
     # Incoming HTTP request direction.
 
     def select_action(self):