[gnome-maps] mainWindow: Add tooltips to header buttons

[Jonas Danielsson <jonasdn src gnome org>]

commit 7324cb5f5a87dcbf304f76bafc525bb215b579a0
Author: Jonas Danielsson <jonas threetimestwo org>
Date:   Mon Sep 1 12:14:50 2014 +0200

    mainWindow: Add tooltips to header buttons
    
    https://bugzilla.gnome.org/show_bug.cgi?id=735739

 src/main-window.ui |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
---
diff --git a/src/main-window.ui b/src/main-window.ui
index 2bfc8b5..c1ba10e 100644
--- a/src/main-window.ui
+++ b/src/main-window.ui
@@ -20,6 +20,7 @@
             <property name="can-focus">True</property>
             <property name="valign">center</property>
             <property name="action-name">win.goto-user-location</property>
+            <property name="tooltip-text" translatable="yes">Go to current location</property>
             <style>
               <class name="image-button"/>
             </style>
@@ -40,6 +41,7 @@
             <property name="visible">True</property>
             <property name="can-focus">True</property>
             <property name="valign">center</property>
+            <property name="tooltip-text" translatable="yes">Choose map type</property>
             <style>
               <class name="image-button"/>
             </style>
@@ -58,6 +60,7 @@
             <property name="can-focus">True</property>
             <property name="valign">center</property>
             <property name="action-name">win.toggle-sidebar</property>
+            <property name="tooltip-text" translatable="yes">Toggle route planner</property>
             <style>
               <class name="image-button"/>
             </style>