[libgepub/wip/hadess-bug-fixes: 1/3] tests: Fix crash on exit

[Bastien Nocera <hadess src gnome org>]

commit 55206d065797b9faddfae3e5dfd8451743613136
Author: Bastien Nocera <hadess hadess net>
Date:   Mon Jan 15 17:09:30 2018 +0100

    tests: Fix crash on exit
    
    When the main window is destroyed, and the view widget is as well, we'd
    receive a property change ("notify") signal for the parent widget of the
    view changing. Except that we're in the middle of destroying that view.
    
    Disconnect from the "notify" signal before exiting, so that we don't
    crash on exit.

 tests/test-gepub.c | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)
---
diff --git a/tests/test-gepub.c b/tests/test-gepub.c
index 73e1666..1d6c0d8 100644
--- a/tests/test-gepub.c
+++ b/tests/test-gepub.c
@@ -273,6 +273,16 @@ test_doc_spine (const char *path)
     g_object_unref (G_OBJECT (doc));
 }
 
+static void
+destroy_cb (GtkWidget *window,
+            GtkWidget *view)
+{
+    g_signal_handlers_disconnect_by_func (G_OBJECT (view),
+                                          reload_current_chapter,
+                                          view);
+    gtk_main_quit ();
+}
+
 int
 main (int argc, char **argv)
 {
@@ -321,7 +331,7 @@ main (int argc, char **argv)
     }
 
     window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
-    g_signal_connect (window, "destroy", (GCallback)gtk_main_quit, NULL);
+    g_signal_connect (window, "destroy", G_CALLBACK(destroy_cb), widget);
     gtk_widget_set_size_request (GTK_WIDGET (window), 1200, 800);
     vpaned = gtk_paned_new (GTK_ORIENTATION_HORIZONTAL);
     gtk_container_add (GTK_CONTAINER (window), vpaned);