[gnome-boxes/wip/props-ui-files: 3/12] props-page-widget: Add add_deferred_change()

[Zeeshan Ali Khattak <zeeshanak src gnome org>]

commit 33d51402fc32eef1ab0a978321463a03378d6903
Author: Zeeshan Ali (Khattak) <zeeshanak gnome org>
Date:   Wed Jun 1 20:08:31 2016 +0100

    props-page-widget: Add add_deferred_change()
    
    Add a method to add a deferred change to PropertiesPageWidget. This is
    needed in preparation for dropping Property hierarchy in favor of new
    PropertiesPageWidget hierarchy.

 src/properties-page-widget.vala |   26 ++++++++++++++++++++++++++
 1 files changed, 26 insertions(+), 0 deletions(-)
---
diff --git a/src/properties-page-widget.vala b/src/properties-page-widget.vala
index 85f4049..357a431 100644
--- a/src/properties-page-widget.vala
+++ b/src/properties-page-widget.vala
@@ -6,10 +6,13 @@ private class Boxes.PropertiesPageWidget: Gtk.Box {
 
     private Gtk.Grid grid;
     private List<Boxes.Property> properties;
+    private List<DeferredChange> deferred_changes;
 
     public signal void refresh_properties ();
 
     public PropertiesPageWidget (PropertiesPage page, Machine machine) {
+        deferred_changes = new List<DeferredChange> ();
+
         switch (page) {
         case PropertiesPage.GENERAL:
             name = _("General");
@@ -87,6 +90,29 @@ private class Boxes.PropertiesPageWidget: Gtk.Box {
             reboot_required |= property.reboot_required;
         }
 
+        foreach (var change in deferred_changes)
+            change.flush ();
+        deferred_changes = new List<DeferredChange> (); // FIXME: Better way to clear the list?
+
         return reboot_required;
     }
+
+    public void add_deferred_change (DeferredChange change) {
+        DeferredChange? deferred = null;
+
+        foreach (var c in deferred_changes) {
+            if (c.id == change.id) {
+                deferred = c;
+
+                break;
+            }
+        }
+
+        if (deferred != null) {
+            deferred.unschedule ();
+            deferred_changes.remove (deferred);
+        }
+
+        deferred_changes.append (change);
+    }
 }