[gnome-builder] stack-header: add tooltips to buttons

[Sébastien Lafargue <slafargue src gnome org>]

commit a03d70ed53588b8c94fe7b3440c6a1e8dd855dbc
Author: Sebastien Lafargue <slafargue gnome org>
Date:   Tue Aug 1 17:50:37 2017 +0200

    stack-header: add tooltips to buttons
    
    https://bugzilla.gnome.org/show_bug.cgi?id=785681

 libide/layout/ide-layout-stack-header.ui |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/libide/layout/ide-layout-stack-header.ui b/libide/layout/ide-layout-stack-header.ui
index 0ea9e37..d62efef 100644
--- a/libide/layout/ide-layout-stack-header.ui
+++ b/libide/layout/ide-layout-stack-header.ui
@@ -45,6 +45,7 @@
             <property name="visible">true</property>
             <child>
               <object class="GtkButton">
+                <property name="tooltip-text" translatable="yes">Open file</property>
                 <property name="action-name">editor.open-file</property>
                 <property name="visible">true</property>
                 <style>
@@ -61,6 +62,7 @@
             <child>
               <object class="GtkButton">
                 <property name="visible">true</property>
+                <property name="tooltip-text" translatable="yes">New file</property>
                 <property name="action-name">editor.new-file</property>
                 <style>
                   <class name="image-button"/>
@@ -75,6 +77,7 @@
             </child>
             <child>
               <object class="GtkButton">
+                <property name="tooltip-text" translatable="yes">New terminal</property>
                 <property name="action-name">win.new-terminal</property>
                 <property name="visible">true</property>
                 <style>
@@ -90,6 +93,7 @@
             </child>
             <child>
               <object class="GtkButton">
+                <property name="tooltip-text" translatable="yes">New documentation</property>
                 <property name="action-name">devhelp.new-view</property>
                 <property name="visible">true</property>
                 <style>