[gnome-boxes] machine: Add unschedule_autosave()

[Zeeshan Ali Khattak <zeeshanak src gnome org>]

commit 5ccfbef9cc63f1e84d89149319039bc94d285764
Author: Zeeshan Ali (Khattak) <zeeshanak gnome org>
Date:   Tue Nov 11 20:48:28 2014 +0000

    machine: Add unschedule_autosave()
    
    Add a method to unschedule a previously scheduled autosave.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=694931

 src/machine.vala |   16 ++++++++++++++--
 1 files changed, 14 insertions(+), 2 deletions(-)
---
diff --git a/src/machine.vala b/src/machine.vala
index d8ba8b1..fe925ce 100644
--- a/src/machine.vala
+++ b/src/machine.vala
@@ -34,6 +34,8 @@ private abstract class Boxes.Machine: Boxes.CollectionItem, Boxes.IPropertiesPro
     private string username;
     private string password;
 
+    private uint autosave_timeout_id;
+
     public Cancellable connecting_cancellable { get; protected set; }
 
     public enum MachineState {
@@ -255,17 +257,27 @@ private abstract class Boxes.Machine: Boxes.CollectionItem, Boxes.IPropertiesPro
     }
 
     public void schedule_autosave () {
-        if (!can_save)
+        if (!can_save || autosave_timeout_id != 0)
             return;
 
         debug ("Scheduling autosave for '%s'", name);
-        Timeout.add_seconds (AUTOSAVE_TIMEOUT, () => {
+        autosave_timeout_id = Timeout.add_seconds (AUTOSAVE_TIMEOUT, () => {
             try_save.begin ();
+            autosave_timeout_id = 0;
 
             return false;
         });
     }
 
+    public void unschedule_autosave () {
+        if (autosave_timeout_id == 0)
+            return;
+
+        debug ("Unscheduling autosave for '%s'", name);
+        Source.remove (autosave_timeout_id);
+        autosave_timeout_id = 0;
+    }
+
     protected virtual async void save_real () throws GLib.Error {
     }