[gnome-boxes] properties-window: API to show file chooser widget

[Zeeshan Ali Khattak <zeeshanak src gnome org>]

commit 2681d1bcda27c39bab7d4f09e9ae397764da74ef
Author: Zeeshan Ali (Khattak) <zeeshanak gnome org>
Date:   Wed Dec 3 17:31:11 2014 +0000

    properties-window: API to show file chooser widget
    
    Add a view and API to show file chooser to user.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=741047

 data/ui/properties-window.ui |   14 ++++++++++++++
 src/properties-window.vala   |   25 +++++++++++++++++++++++--
 2 files changed, 37 insertions(+), 2 deletions(-)
---
diff --git a/data/ui/properties-window.ui b/data/ui/properties-window.ui
index 3ca6de7..7cd1aa0 100644
--- a/data/ui/properties-window.ui
+++ b/data/ui/properties-window.ui
@@ -15,6 +15,8 @@
         |         |-> properties = new Boxes.Properties ();
         |         |
         |         |-> troubleshoot_log = new Boxes.TroubleshootLog ();
+        |         |
+        |         |-> file_chooser = new Gtk.FileChooserWidget ();
         |
         |-> topbar = new Boxes.PropertiesToolbar (); // as titlebar
   -->
@@ -63,6 +65,18 @@
               </packing>
             </child>
 
+            <child>
+              <object class="GtkFileChooserWidget" id="file_chooser">
+                <property name="visible">True</property>
+                <property name="show-hidden">False</property>
+                <property name="local-only">True</property>
+              </object>
+
+              <packing>
+                <property name="name">file_chooser</property>
+              </packing>
+            </child>
+
           </object>
         </child>
 
diff --git a/src/properties-window.vala b/src/properties-window.vala
index fa7142e..5a889d0 100644
--- a/src/properties-window.vala
+++ b/src/properties-window.vala
@@ -3,12 +3,15 @@ using Gtk;
 
 private enum Boxes.PropsWindowPage {
     MAIN,
-    TROUBLESHOOTING_LOG
+    TROUBLESHOOTING_LOG,
+    FILE_CHOOSER,
 }
 
 [GtkTemplate (ui = "/org/gnome/Boxes/ui/properties-window.ui")]
 private class Boxes.PropertiesWindow: Gtk.Window, Boxes.UI {
-    public const string[] page_names = { "main", "troubleshoot_log" };
+    public const string[] page_names = { "main", "troubleshoot_log", "file_chooser" };
+
+    public delegate void FileChosenFunc (string path);
 
     public UIState previous_ui_state { get; protected set; }
     public UIState ui_state { get; protected set; }
@@ -31,6 +34,8 @@ private class Boxes.PropertiesWindow: Gtk.Window, Boxes.UI {
     [GtkChild]
     public TroubleshootLog troubleshoot_log;
     [GtkChild]
+    public Gtk.FileChooserWidget file_chooser;
+    [GtkChild]
     public PropertiesToolbar topbar;
     [GtkChild]
     public Notificationbar notificationbar;
@@ -43,6 +48,10 @@ private class Boxes.PropertiesWindow: Gtk.Window, Boxes.UI {
         properties.setup_ui (app_window, this);
         topbar.setup_ui (app_window, this);
 
+        // FIXME: Can we do this from UI file somehow? Would be nice, if so
+        file_chooser.filter = new Gtk.FileFilter ();
+        file_chooser.filter.add_mime_type ("application/x-cd-image");
+
         set_transient_for (app_window);
 
         notify["ui-state"].connect (ui_state_changed);
@@ -53,6 +62,18 @@ private class Boxes.PropertiesWindow: Gtk.Window, Boxes.UI {
         page = PropsWindowPage.TROUBLESHOOTING_LOG;
     }
 
+    public void show_file_chooser (owned FileChosenFunc file_chosen_func) {
+        ulong activated_id = 0;
+        activated_id = file_chooser.file_activated.connect (() => {
+            var path = file_chooser.get_filename ();
+            file_chosen_func (path);
+            file_chooser.disconnect (activated_id);
+
+            page = PropsWindowPage.MAIN;
+        });
+        page = PropsWindowPage.FILE_CHOOSER;
+    }
+
     public void copy_troubleshoot_log_to_clipboard () {
         var log = troubleshoot_log.view.buffer.text;
         var clipboard = Gtk.Clipboard.get_for_display (get_display (), Gdk.SELECTION_CLIPBOARD);