[balsa] Make Select-Filters dialog respect headerbars conf

[Peter Bloomfield <peterb src gnome org>]

commit 61506d0473a3b818d68b70b9aedbd2a595790ab2
Author: Albrecht Dreß <albrecht dress arcor de>
Date:   Sun Feb 19 18:44:39 2017 -0500

    Make Select-Filters dialog respect headerbars conf
    
        * src/filter-run-dialog.c (balsa_filter_run_dialog_new): check
        the BALSA_DIALOG_HEADERBAR environment variable.
    
    Signed-off-by: Peter Bloomfield <PeterBloomfield bellsouth net>

 ChangeLog               |    7 +++++++
 src/filter-run-dialog.c |   12 +++++++++++-
 2 files changed, 18 insertions(+), 1 deletions(-)
---
diff --git a/ChangeLog b/ChangeLog
index 0164eb2..7445ae3 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,12 @@
 2017-02-19  Albrecht Dreß
 
+       Make "Select Filters..." dialogue respect the headerbars config
+
+       * src/filter-run-dialog.c (balsa_filter_run_dialog_new): check
+       the BALSA_DIALOG_HEADERBAR environment variable.
+
+2017-02-19  Albrecht Dreß
+
        Fix unsafe permissions for config-private
 
        * libbalsa/libbalsa-conf.c (lbc_init), (lbc_lock), (lbc_sync):
diff --git a/src/filter-run-dialog.c b/src/filter-run-dialog.c
index d2746c2..e9e7c99 100644
--- a/src/filter-run-dialog.c
+++ b/src/filter-run-dialog.c
@@ -179,11 +179,21 @@ balsa_filter_run_dialog_new(LibBalsaMailbox * mbox, GtkWindow * parent)
 {
     BalsaFilterRunDialog *p;
     gchar * dialog_title;
+    gboolean use_headerbar = TRUE;
+#if GTK_CHECK_VERSION(3, 12, 0)
+       const gchar *dialog_env;
+
+    /* header bar configuration */
+       dialog_env = g_getenv("BALSA_DIALOG_HEADERBAR");
+       if ((dialog_env != NULL) && (atoi(dialog_env) == 0)) {
+               use_headerbar = FALSE;
+       }
+#endif
 
     g_return_val_if_fail(mbox, NULL);
     p = g_object_new(BALSA_TYPE_FILTER_RUN_DIALOG,
                      "transient-for", parent,
-                     "use-header-bar", TRUE,
+                     "use-header-bar", use_headerbar,
                      NULL);
 
     /* We set the dialog title */