[evolution] Add e_alert_bar_close_alert().

[Matthew Barnes <mbarnes src gnome org>]

commit 2ecce97b88d418a77eb399ff4ca70a329e6aed3b
Author: Matthew Barnes <mbarnes redhat com>
Date:   Sat Aug 10 16:41:38 2013 -0400

    Add e_alert_bar_close_alert().
    
    Closes the active EAlert and returns TRUE, or else returns FALSE if
    there is no active EAlert.

 .../evolution-util/evolution-util-sections.txt     |    1 +
 e-util/e-alert-bar.c                               |   40 ++++++++++++++++++++
 e-util/e-alert-bar.h                               |    1 +
 3 files changed, 42 insertions(+), 0 deletions(-)
---
diff --git a/doc/reference/evolution-util/evolution-util-sections.txt 
b/doc/reference/evolution-util/evolution-util-sections.txt
index f4878fd..aa1ac5f 100644
--- a/doc/reference/evolution-util/evolution-util-sections.txt
+++ b/doc/reference/evolution-util/evolution-util-sections.txt
@@ -162,6 +162,7 @@ EAlertBar
 e_alert_bar_new
 e_alert_bar_clear
 e_alert_bar_add_alert
+e_alert_bar_close_alert
 <SUBSECTION Standard>
 E_ALERT_BAR
 E_IS_ALERT_BAR
diff --git a/e-util/e-alert-bar.c b/e-util/e-alert-bar.c
index c19fa74..4e621d7 100644
--- a/e-util/e-alert-bar.c
+++ b/e-util/e-alert-bar.c
@@ -298,10 +298,20 @@ alert_bar_get_request_mode (GtkWidget *widget)
 }
 
 static void
+alert_bar_close (GtkInfoBar *info_bar)
+{
+       /* GtkInfoBar's close() method looks for a button with a response
+        * code of GTK_RESPONSE_CANCEL.  But that does not apply here, so
+        * we have to override the method. */
+       e_alert_bar_close_alert (E_ALERT_BAR (info_bar));
+}
+
+static void
 e_alert_bar_class_init (EAlertBarClass *class)
 {
        GObjectClass *object_class;
        GtkWidgetClass *widget_class;
+       GtkInfoBarClass *info_bar_class;
 
        g_type_class_add_private (class, sizeof (EAlertBarPrivate));
 
@@ -311,6 +321,9 @@ e_alert_bar_class_init (EAlertBarClass *class)
 
        widget_class = GTK_WIDGET_CLASS (class);
        widget_class->get_request_mode = alert_bar_get_request_mode;
+
+       info_bar_class = GTK_INFO_BAR_CLASS (class);
+       info_bar_class->close = alert_bar_close;
 }
 
 static void
@@ -388,3 +401,30 @@ e_alert_bar_add_alert (EAlertBar *alert_bar,
 
        alert_bar_show_alert (alert_bar);
 }
+
+/**
+ * e_alert_bar_close_alert:
+ * @alert_bar: an #EAlertBar
+ *
+ * Closes the active #EAlert and returns %TRUE, or else returns %FALSE if
+ * there is no active #EAlert.
+ *
+ * Returns: whether an #EAlert was closed
+ **/
+gboolean
+e_alert_bar_close_alert (EAlertBar *alert_bar)
+{
+       EAlert *alert;
+       gboolean alert_closed = FALSE;
+
+       g_return_val_if_fail (E_IS_ALERT_BAR (alert_bar), FALSE);
+
+       alert = g_queue_peek_head (&alert_bar->priv->alerts);
+
+       if (alert != NULL) {
+               alert_bar_response_close (alert);
+               alert_closed = TRUE;
+       }
+
+       return alert_closed;
+}
diff --git a/e-util/e-alert-bar.h b/e-util/e-alert-bar.h
index d565f1b..5604657 100644
--- a/e-util/e-alert-bar.h
+++ b/e-util/e-alert-bar.h
@@ -66,6 +66,7 @@ GtkWidget *   e_alert_bar_new                 (void);
 void           e_alert_bar_clear               (EAlertBar *alert_bar);
 void           e_alert_bar_add_alert           (EAlertBar *alert_bar,
                                                 EAlert *alert);
+gboolean       e_alert_bar_close_alert         (EAlertBar *alert_bar);
 
 G_END_DECLS