[balsa/gtk3] Use informative top line for digital signature

[Peter Bloomfield <peterb src gnome org>]

commit ac0f2407d3ffd47850d41ed1644388c94f17c72f
Author: Peter Bloomfield <PeterBloomfield bellsouth net>
Date:   Mon May 16 21:28:51 2016 -0400

    Use informative top line for digital signature
    
        * src/balsa-mime-widget-crypto.c
        (balsa_mime_widget_signature_widget):

 ChangeLog                      |    8 ++++++++
 src/balsa-mime-widget-crypto.c |   25 ++++++++++++++++++-------
 2 files changed, 26 insertions(+), 7 deletions(-)
---
diff --git a/ChangeLog b/ChangeLog
index b77f911..f42c197 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,11 @@
+2016-05-16  Peter Bloomfield  <pbloomfield bellsouth net>
+
+       Use top line of digital signature for GtkExpander label instead
+       of "Digital Signature"
+
+       * src/balsa-mime-widget-crypto.c
+       (balsa_mime_widget_signature_widget):
+
 2016-05-16  Albrecht Dreß
 
        Make SSL mandatory
diff --git a/src/balsa-mime-widget-crypto.c b/src/balsa-mime-widget-crypto.c
index 88da682..37ec3a2 100644
--- a/src/balsa-mime-widget-crypto.c
+++ b/src/balsa-mime-widget-crypto.c
@@ -61,7 +61,8 @@ balsa_mime_widget_signature_widget(LibBalsaMessageBody * mime_body,
 {
     gchar *infostr;
     GtkWidget *vbox, *label;
-    GtkWidget *expander;
+    GtkWidget *signature_widget;
+    gchar **lines;
 
     if (!mime_body->sig_info ||
        mime_body->sig_info->status == GPG_ERR_NOT_SIGNED)
@@ -81,14 +82,17 @@ balsa_mime_widget_signature_widget(LibBalsaMessageBody * mime_body,
        g_free(infostr);
        infostr = labelstr;
     }
+
+    if (!infostr)
+        return NULL;
+    lines = g_strsplit(infostr, "\n", 2);
+    g_free(infostr);
     
     vbox = gtk_box_new(GTK_ORIENTATION_VERTICAL, BMW_VBOX_SPACE);
-    gtk_container_set_border_width(GTK_CONTAINER(vbox), BMW_CONTAINER_BORDER);
-    label = gtk_label_new(infostr);
+    label = gtk_label_new(lines[1] ? lines[1] : lines[0]);
     gtk_label_set_selectable(GTK_LABEL(label), TRUE);
     gtk_widget_set_halign(label, GTK_ALIGN_START);
     gtk_box_pack_start(GTK_BOX(vbox), label, FALSE, FALSE, 0);
-    g_free(infostr);
 #ifdef HAVE_GPG
     if (mime_body->sig_info->protocol == GPGME_PROTOCOL_OpenPGP) {
         GtkWidget *button;
@@ -109,10 +113,17 @@ balsa_mime_widget_signature_widget(LibBalsaMessageBody * mime_body,
     }
 #endif /* HAVE_GPG */
 
-    expander = gtk_expander_new(_("Digital Signature"));
-    gtk_container_add(GTK_CONTAINER(expander), vbox);
+    if (lines[1]) {
+        signature_widget = gtk_expander_new(lines[0]);
+        gtk_container_add(GTK_CONTAINER(signature_widget), vbox);
+    } else {
+        signature_widget = vbox;
+    }
+    gtk_container_set_border_width(GTK_CONTAINER(signature_widget), BMW_CONTAINER_BORDER);
+
+    g_strfreev(lines);
 
-    return expander;
+    return signature_widget;
 }