[gnome-photos] spinner-box: Start/stop the spinner when fading it in and out

[Debarshi Ray <debarshir src gnome org>]

commit 9009e9260f7bc6c553251b1bb4e718dfbdd310c4
Author: Debarshi Ray <debarshir gnome org>
Date:   Sat Nov 17 22:20:27 2012 +0100

    spinner-box: Start/stop the spinner when fading it in and out
    
    Or it will keep the animation up in the background, keeping the CPU
    very busy.
    
    Original patch from Cosimo Cecchi for gnome-documents.

 src/photos-spinner-box.c |   16 +++++++++-------
 1 files changed, 9 insertions(+), 7 deletions(-)
---
diff --git a/src/photos-spinner-box.c b/src/photos-spinner-box.c
index 74ad310..ee104b2 100644
--- a/src/photos-spinner-box.c
+++ b/src/photos-spinner-box.c
@@ -35,6 +35,7 @@
 
 struct _PhotosSpinnerBoxPrivate
 {
+  GtkWidget *spinner;
   guint delayed_move_id;
 };
 
@@ -76,6 +77,7 @@ photos_spinner_box_move_out_completed (PhotosSpinnerBox *self)
     return;
 
   clutter_actor_set_child_below_sibling (parent, CLUTTER_ACTOR (self), NULL);
+  gtk_spinner_stop (GTK_SPINNER (self->priv->spinner));
 }
 
 
@@ -83,9 +85,9 @@ static void
 photos_spinner_box_constructed (GObject *object)
 {
   PhotosSpinnerBox *self = PHOTOS_SPINNER_BOX (object);
+  PhotosSpinnerBoxPrivate *priv = self->priv;
   GtkWidget *bin;
   GtkWidget *label;
-  GtkWidget *spinner;
   GtkWidget *widget;
   gchar *text;
 
@@ -99,12 +101,11 @@ photos_spinner_box_constructed (GObject *object)
   gtk_orientable_set_orientation (GTK_ORIENTABLE (widget), GTK_ORIENTATION_VERTICAL);
   gtk_grid_set_row_spacing (GTK_GRID (widget), 24);
 
-  spinner = gtk_spinner_new ();
-  gtk_widget_set_size_request (spinner, 128, 128);
-  gtk_widget_set_halign (spinner, GTK_ALIGN_CENTER);
-  gtk_widget_set_valign (spinner, GTK_ALIGN_CENTER);
-  gtk_spinner_start (GTK_SPINNER (spinner));
-  gtk_container_add (GTK_CONTAINER (widget), spinner);
+  priv->spinner = gtk_spinner_new ();
+  gtk_widget_set_size_request (priv->spinner, 128, 128);
+  gtk_widget_set_halign (priv->spinner, GTK_ALIGN_CENTER);
+  gtk_widget_set_valign (priv->spinner, GTK_ALIGN_CENTER);
+  gtk_container_add (GTK_CONTAINER (widget), priv->spinner);
 
   label = gtk_label_new (NULL);
 
@@ -175,6 +176,7 @@ photos_spinner_box_move_in (PhotosSpinnerBox *self)
     return;
 
   clutter_actor_set_child_above_sibling (parent, CLUTTER_ACTOR (self), NULL);
+  gtk_spinner_start (GTK_SPINNER (self->priv->spinner));
   clutter_actor_animate (CLUTTER_ACTOR (self), CLUTTER_EASE_OUT_QUAD, 300, "opacity", 255, NULL);
 }