[postr] Added help button.

[Tiffany Antopolski <antopolski src gnome org>]

commit c55002684bbfe4282288e1641b72fac5f6173727
Author: Tiffany Antopolski <tiffany antopolski gmail com>
Date:   Mon Mar 19 23:39:31 2012 -0400

    Added help button.

 src/postr.glade |    9 +++++++++
 src/postr.py    |    6 +++++-
 2 files changed, 14 insertions(+), 1 deletions(-)
---
diff --git a/src/postr.glade b/src/postr.glade
index fcfa5b7..f1c1053 100644
--- a/src/postr.glade
+++ b/src/postr.glade
@@ -171,6 +171,15 @@
                 <child>
                   <widget class="GtkMenu" id="menuitem4_menu">
                     <child>
+                      <widget class="GtkImageMenuItem" id="help">
+                        <property name="stock_id">gtk-help</property>
+                        <property name="label" translatable="True">_Contents</property>
+                        <property name="visible">True</property>
+                        <property name="use_underline">True</property>
+                        <signal name="activate" handler="on_help_activate"/>
+                      </widget>
+                    </child>
+                    <child>
                       <widget class="GtkImageMenuItem" id="about">
                         <property name="label">gtk-about</property>
                         <property name="visible">True</property>
diff --git a/src/postr.py b/src/postr.py
index e640ae5..1d8d640 100644
--- a/src/postr.py
+++ b/src/postr.py
@@ -605,7 +605,11 @@ class Postr(UniqueApp):
         self.upload_index = 0
         self.list_failed_it = []
         self.upload()
-        
+       
+    def on_help_activate(self, menuitem):
+        """Callback from Help->Contents."""
+        gtk.show_uri(None,"ghelp:postr",gtk.gdk.CURRENT_TIME);
+
     def on_about_activate(self, menuitem):
         """Callback from Help->About."""
         dialog = AboutDialog(self.window)