[gnome-photos/wip/rishi/collection: 23/44] source-notification: ...

[Debarshi Ray <debarshir src gnome org>]

commit ed9071e84f16a1c033578dc9dd1d837f96a01f46
Author: Debarshi Ray <debarshir gnome org>
Date:   Fri Feb 2 13:14:12 2018 +0100

    source-notification: ...

 src/photos-source-notification.c | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)
---
diff --git a/src/photos-source-notification.c b/src/photos-source-notification.c
index ad11899f..26b87c56 100644
--- a/src/photos-source-notification.c
+++ b/src/photos-source-notification.c
@@ -62,6 +62,24 @@ photos_source_notification_close (PhotosSourceNotification *self)
 }
 
 
+static void
+photos_source_notification_import_notify_sensitive (GObject *object)
+{
+  GtkStyleContext *context;
+  gboolean sensitive;
+  const gchar *class_name;
+  const gchar *invert_class_name;
+
+  sensitive = gtk_widget_get_sensitive (GTK_WIDGET (object));
+  class_name = sensitive ? "photos-fade-in" : "photos-fade-out";
+  invert_class_name = !sensitive ? "photos-fade-in" : "photos-fade-out";
+
+  context = gtk_widget_get_style_context (GTK_WIDGET (object));
+  gtk_style_context_remove_class (context, invert_class_name);
+  gtk_style_context_add_class (context, class_name);
+}
+
+
 static void
 photos_source_notification_settings_clicked (PhotosSourceNotification *self)
 {
@@ -164,6 +182,10 @@ photos_source_notification_constructed (GObject *object)
       id = photos_filterable_get_id (PHOTOS_FILTERABLE (self->source));
       gtk_actionable_set_action_target (GTK_ACTIONABLE (import), "s", id);
       gtk_container_add (GTK_CONTAINER (self), import);
+      g_signal_connect (import,
+                        "notify::sensitive",
+                        G_CALLBACK (photos_source_notification_import_notify_sensitive),
+                        NULL);
     }
   else if (goa_object != NULL)
     {