[gnome-builder] credits: add gb_credits_widget_is_rolling()

[Christian Hergert <chergert src gnome org>]

commit 6b44d86b0f964d130a6062135f2a43b1f3af182b
Author: Christian Hergert <christian hergert me>
Date:   Sat Jan 10 19:38:08 2015 -0800

    credits: add gb_credits_widget_is_rolling()
    
    This let's you know if the credits are currently rolling. (As one would
    expect).

 src/credits/gb-credits-widget.c |    8 ++++++++
 src/credits/gb-credits-widget.h |    1 +
 2 files changed, 9 insertions(+), 0 deletions(-)
---
diff --git a/src/credits/gb-credits-widget.c b/src/credits/gb-credits-widget.c
index 1dd0581..d847f0d 100644
--- a/src/credits/gb-credits-widget.c
+++ b/src/credits/gb-credits-widget.c
@@ -51,6 +51,14 @@ gb_credits_widget_new (void)
   return g_object_new (GB_TYPE_CREDITS_WIDGET, NULL);
 }
 
+gboolean
+gb_credits_widget_is_rolling (GbCreditsWidget *widget)
+{
+  g_return_val_if_fail (GB_IS_CREDITS_WIDGET (widget), FALSE);
+
+  return !!widget->priv->animation;
+}
+
 static void
 stop_animation (GbCreditsWidget *widget)
 {
diff --git a/src/credits/gb-credits-widget.h b/src/credits/gb-credits-widget.h
index 831723d..967cb88 100644
--- a/src/credits/gb-credits-widget.h
+++ b/src/credits/gb-credits-widget.h
@@ -52,6 +52,7 @@ GType      gb_credits_widget_get_type     (void);
 GtkWidget *gb_credits_widget_new          (void);
 void       gb_credits_widget_start        (GbCreditsWidget *widget);
 void       gb_credits_widget_stop         (GbCreditsWidget *widget);
+gboolean   gb_credits_widget_is_rolling   (GbCreditsWidget *widget);
 guint      gb_credits_widget_get_duration (GbCreditsWidget *widget);
 void       gb_credits_widget_set_duration (GbCreditsWidget *widget,
                                            guint            duration);