[evolution/wip/webkit2] Bug 614557 - Hiding mail preview pane should stop auto-mark-seen timer

[Milan Crha <mcrha src gnome org>]

commit 3adc66f023737d99e1bbaf90c48b0140b8747e5a
Author: Milan Crha <mcrha redhat com>
Date:   Mon Feb 22 14:50:55 2016 +0100

    Bug 614557 - Hiding mail preview pane should stop auto-mark-seen timer

 mail/e-mail-reader.c |   17 +++++++++++++++++
 1 files changed, 17 insertions(+), 0 deletions(-)
---
diff --git a/mail/e-mail-reader.c b/mail/e-mail-reader.c
index 1e993f9..87e9fbf 100644
--- a/mail/e-mail-reader.c
+++ b/mail/e-mail-reader.c
@@ -2920,6 +2920,19 @@ discard_timeout_mark_seen_cb (EMailReader *reader)
        return FALSE;
 }
 
+
+static void
+mail_reader_preview_pane_visible_changed_cb (EMailReader *reader,
+                                            GParamSpec *param,
+                                            GtkWidget *widget)
+{
+       g_return_if_fail (E_IS_MAIL_READER (reader));
+       g_return_if_fail (GTK_IS_WIDGET (widget));
+
+       if (!gtk_widget_get_visible (widget))
+               discard_timeout_mark_seen_cb (reader);
+}
+
 static void
 mail_reader_remove_followup_alert (EMailReader *reader)
 {
@@ -4409,6 +4422,10 @@ connect_signals:
                message_list, "right-click",
                G_CALLBACK (discard_timeout_mark_seen_cb), reader);
 
+       g_signal_connect_swapped (
+               e_mail_reader_get_preview_pane (reader), "notify::visible",
+               G_CALLBACK (mail_reader_preview_pane_visible_changed_cb), reader);
+
        g_signal_connect_after (
                message_list, "message-list-built",
                G_CALLBACK (mail_reader_message_list_built_cb), reader);