[gnome-boxes] collection-view: Indicate under-construction boxes

[Zeeshan Ali Khattak <zeeshanak src gnome org>]

commit dde791b71a7dde2538cc060cd5466e1cadfb20da
Author: Zeeshan Ali (Khattak) <zeeshanak gnome org>
Date:   Sun Jun 16 09:52:28 2013 +0200

    collection-view: Indicate under-construction boxes
    
    Use the new libgd API to indicate under-construction boxes by showing a
    spinner on top of the box thumbnail.
    
    Later we'll use the same API to show progressbar for import case.
    Unfortunately we can't do the same for installation case as we don't have
    any reliable means to determine progess of installations.

 src/collection-view.vala |   39 ++++++++++++++++++++++++++++++++++++++-
 1 files changed, 38 insertions(+), 1 deletions(-)
---
diff --git a/src/collection-view.vala b/src/collection-view.vala
index fd07ebe..ad12e8c 100644
--- a/src/collection-view.vala
+++ b/src/collection-view.vala
@@ -149,7 +149,7 @@ private class Boxes.CollectionView: Boxes.UI {
             return;
         }
 
-        var iter = append (machine.name, machine.info, item);
+        var iter = append (machine.name, machine.info,  item);
         var pixbuf_id = machine.notify["pixbuf"].connect (() => {
             // apparently iter is stable after insertion/removal/sort
             update_screenshot (iter);
@@ -176,6 +176,14 @@ private class Boxes.CollectionView: Boxes.UI {
         });
         item.set_data<ulong> ("info_id", info_id);
 
+        setup_activity (iter, machine);
+        var under_construct_id = machine.notify["under-construction"].connect (() => {
+            // apparently iter is stable after insertion/removal/sort
+            setup_activity (iter, machine);
+            main_view.queue_draw ();
+        });
+        item.set_data<ulong> ("under_construct_id", under_construct_id);
+
         item.ui_state = App.app.ui_state;
         actor_remove (item.actor);
 
@@ -217,6 +225,8 @@ private class Boxes.CollectionView: Boxes.UI {
         item.disconnect (name_id);
         var info_id = item.get_data<ulong> ("info_id");
         item.disconnect (info_id);
+        var under_construct_id = item.get_data<ulong> ("under_construct_id");
+        item.disconnect (under_construct_id);
 
         if (item as Machine != null) {
             var machine = item as Machine;
@@ -366,4 +376,31 @@ private class Boxes.CollectionView: Boxes.UI {
         App.app.notify_property ("selected-items");
     }
 
+    private void setup_activity (Gtk.TreeIter iter, Machine machine) {
+        var activity_timeout = machine.get_data<uint> ("activity_timeout");
+        if (activity_timeout > 0) {
+            Source.remove (activity_timeout);
+            machine.set_data<uint> ("activity_timeout", 0);
+        }
+
+        if (!machine.under_construction) {
+            model.set (iter, ModelColumns.PULSE, int.MAX);
+
+            return;
+        }
+
+        var pulse = int.MIN;
+        model.set (iter, ModelColumns.PULSE, pulse++);
+        activity_timeout = Timeout.add (150, () => {
+            var machine_iter = machine.get_data<Gtk.TreeIter?> ("iter");
+            if (machine_iter == null)
+                return false; // Item removed
+
+            model.set (machine_iter, ModelColumns.PULSE, pulse++);
+            main_view.queue_draw ();
+
+            return true;
+        });
+        machine.set_data<uint> ("activity_timeout", activity_timeout);
+    }
 }