[gnome-weather] Add a submenu to the app menu to choose the temperature unit

[Giovanni Campagna <gcampagna src gnome org>]

commit 7c901f42d2837e682f37d85b1fa3ee94922f2a05
Author: Giovanni Campagna <gcampagna src gnome org>
Date:   Mon May 13 23:19:49 2013 +0200

    Add a submenu to the app menu to choose the temperature unit
    
    Among all the preferences in the old dialog, temperature unit
    is the only one that makes real sense, as we don't show wind
    speed, visibility or pressure.
    Also, exclude the Kelvin entry, which is there just to make
    cool screenshots :)

 data/app-menu.ui |   17 +++++++++++++++--
 src/main.js      |    3 +++
 2 files changed, 18 insertions(+), 2 deletions(-)
---
diff --git a/data/app-menu.ui b/data/app-menu.ui
index 42a16a4..c332595 100644
--- a/data/app-menu.ui
+++ b/data/app-menu.ui
@@ -6,12 +6,25 @@
         <attribute name="action">win.new</attribute>
         <attribute name="accel">&lt;Primary&gt;n</attribute>
       </item>
+    </section>
+    <submenu>
+      <attribute translatable="yes" name="label">Temperature unit</attribute>
+      <item>
+        <attribute translatable="yes" name="label">Celsius</attribute>
+        <attribute name="action">app.temperature-unit</attribute>
+        <attribute name="target">centigrade</attribute>
+      </item>
+      <item>
+        <attribute translatable="yes" name="label">Fahrenheit</attribute>
+        <attribute name="action">app.temperature-unit</attribute>
+        <attribute name="target">fahrenheit</attribute>
+      </item>
+    </submenu>
+    <section>
       <item>
         <attribute name="action">win.about</attribute>
         <attribute name="label" translatable="yes">About Weather</attribute>
       </item>
-    </section>
-    <section>
       <item>
         <attribute name="action">app.quit</attribute>
         <attribute name="label" translatable="yes">Quit</attribute>
diff --git a/src/main.js b/src/main.js
index 687b79e..844a0d4 100644
--- a/src/main.js
+++ b/src/main.js
@@ -76,6 +76,9 @@ const Application = new Lang.Class({
                          [{ name: 'quit',
                             activate: this._onQuit }]);
 
+        let gwSettings = new Gio.Settings({ schema: 'org.gnome.GWeather' });
+        this.add_action(gwSettings.create_action('temperature-unit'));
+
         this._initAppMenu();
 
         this.add_accelerator("Escape", "win.selection-mode(false)", null);