[devhelp] Window: move New Tab action as a button in the headerbar

[Sébastien Wilmet <swilmet src gnome org>]

commit f07f4bada6d0a68b2f2828e1f1b5a47518a7078b
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Sat Jun 3 14:50:49 2017 +0200

    Window: move New Tab action as a button in the headerbar
    
    - Remove 'New Tab' from the hamburger menu.
    - Add 'New Tab' button in the headerbar, on the left side, after the
      back/forward buttons.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=779386

 src/dh-window.ui |   33 ++++++++++++++++++++++-----------
 1 files changed, 22 insertions(+), 11 deletions(-)
---
diff --git a/src/dh-window.ui b/src/dh-window.ui
index 521b7ab..62837ad 100644
--- a/src/dh-window.ui
+++ b/src/dh-window.ui
@@ -4,11 +4,6 @@
   <menu id="gear_menu">
     <section>
       <item>
-        <attribute name="label" translatable="yes">New _Tab</attribute>
-        <attribute name="action">win.new-tab</attribute>
-        <attribute name="accel">&lt;Primary&gt;t</attribute>
-      </item>
-      <item>
         <attribute name="label" translatable="yes">Side _Panel</attribute>
         <attribute name="action">win.show-sidebar</attribute>
         <attribute name="accel">F9</attribute>
@@ -52,12 +47,6 @@
         <attribute name="action">app.new-window</attribute>
         <attribute name="accel">&lt;Primary&gt;n</attribute>
       </item>
-      <item>
-        <attribute name="label" translatable="yes">New _Tab</attribute>
-        <attribute name="action">win.new-tab</attribute>
-        <attribute name="accel">&lt;Primary&gt;t</attribute>
-        <attribute name="use-underline">True</attribute>
-      </item>
     </section>
     <section>
       <item>
@@ -174,6 +163,28 @@
           </packing>
         </child>
         <child>
+          <object class="GtkButton" id="new_tab_button">
+            <property name="visible">True</property>
+            <property name="valign">center</property>
+            <property name="can_focus">False</property>
+            <property name="tooltip_text" translatable="yes">New Tab</property>
+            <property name="action_name">win.new-tab</property>
+            <style>
+              <class name="image-button"/>
+            </style>
+            <child>
+              <object class="GtkImage" id="new_tab_button_image">
+                <property name="visible">True</property>
+                <property name="icon_size">1</property>
+                <property name="icon_name">tab-new-symbolic</property>
+              </object>
+            </child>
+          </object>
+          <packing>
+            <property name="pack_type">start</property>
+          </packing>
+        </child>
+        <child>
           <object class="GtkMenuButton" id="gear_menu_button">
             <property name="visible">True</property>
             <property name="valign">center</property>