[gnome-boxes] properties-toolbar: Content for file chooser view

[Zeeshan Ali Khattak <zeeshanak src gnome org>]

commit 3a60e4f91b31a51de5299b802b25b34eb942f20b
Author: Zeeshan Ali (Khattak) <zeeshanak gnome org>
Date:   Wed Dec 3 17:31:11 2014 +0000

    properties-toolbar: Content for file chooser view
    
    The properties topbar should provide a different set of controls and
    title when file chooser view is visible in the properties window.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=741047

 data/ui/properties-toolbar.ui |   35 +++++++++++++++++++++++++++++++++++
 src/properties-toolbar.vala   |    5 +++++
 2 files changed, 40 insertions(+), 0 deletions(-)
---
diff --git a/data/ui/properties-toolbar.ui b/data/ui/properties-toolbar.ui
index 6e858ed..dee634c 100644
--- a/data/ui/properties-toolbar.ui
+++ b/data/ui/properties-toolbar.ui
@@ -122,5 +122,40 @@
       </packing>
     </child>
 
+    <!-- File chooser page -->
+    <child>
+      <object class="GtkHeaderBar" id="file_chooser">
+        <property name="visible">True</property>
+        <property name="show-close-button">True</property>
+        <property name="title" translatable="yes">Select a device or ISO file</property>
+        <style>
+          <class name="titlebar"/>
+        </style>
+
+        <child>
+          <object class="GtkButton" id="file_chooser_cancel_button">
+            <property name="visible">True</property>
+            <property name="valign">center</property>
+            <property name="use-underline">True</property>
+            <property name="label" translatable="yes">_Cancel</property>
+            <signal name="clicked" handler="on_file_chooser_cancel_clicked"/>
+            <style>
+              <class name="text-button"/>
+            </style>
+
+          </object>
+
+          <packing>
+            <property name="pack-type">start</property>
+          </packing>
+        </child>
+
+      </object>
+
+      <packing>
+        <property name="name">file_chooser</property>
+      </packing>
+    </child>
+
   </template>
 </interface>
diff --git a/src/properties-toolbar.vala b/src/properties-toolbar.vala
index d84d613..07641eb 100644
--- a/src/properties-toolbar.vala
+++ b/src/properties-toolbar.vala
@@ -65,6 +65,11 @@ private class Boxes.PropertiesToolbar: Gtk.Stack {
     }
 
     [GtkCallback]
+    private void on_file_chooser_cancel_clicked () requires (page == PropsWindowPage.FILE_CHOOSER) {
+        props_window.page = PropsWindowPage.MAIN;
+    }
+
+    [GtkCallback]
     private void on_title_entry_changed () {
         window.current_item.name = title_entry.text;
     }