[gtk+] testsuite: add hide-titlebar-when-maximized test for GtkWindow

[Matthias Clasen <matthiasc src gnome org>]

commit 3a5d15358e4675a8b8c3e459b874d9b5719c66a4
Author: Ray Strode <rstrode redhat com>
Date:   Fri Nov 21 14:17:06 2014 -0500

    testsuite: add hide-titlebar-when-maximized test for GtkWindow
    
    This commit adds a test that checks whether or not
    hide-titlebar-when-maximized can be set before the window is
    realized.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=740287

 testsuite/gtk/window.c |   73 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 files changed, 73 insertions(+), 0 deletions(-)
---
diff --git a/testsuite/gtk/window.c b/testsuite/gtk/window.c
index 74fa6eb..fa8dfc6 100644
--- a/testsuite/gtk/window.c
+++ b/testsuite/gtk/window.c
@@ -1,5 +1,10 @@
 #include <gtk/gtk.h>
 
+#ifdef GDK_WINDOWING_X11
+#include <gdk/gdkx.h>
+#include <X11/Xatom.h>
+#endif
+
 static gboolean interactive = FALSE;
 
 static gboolean
@@ -336,6 +341,73 @@ test_show_hide3 (void)
   gtk_widget_destroy (window);
 }
 
+static gboolean
+on_map_event (GtkWidget *window)
+{
+  gtk_main_quit ();
+
+  return FALSE;
+}
+
+static void
+test_hide_titlebar_when_maximized (void)
+{
+  GtkWidget *window;
+
+  g_test_bug ("740287");
+
+  /* test that hide-titlebar-when-maximized gets set appropriately
+   * on the window, if it's set before the window is realized.
+   */
+
+  window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
+
+  g_signal_connect (window,
+                    "map-event",
+                    G_CALLBACK (on_map_event),
+                    NULL);
+
+  gtk_window_set_hide_titlebar_when_maximized (GTK_WINDOW (window), TRUE);
+
+  gtk_widget_show (window);
+
+  g_timeout_add (100, stop_main, NULL);
+  gtk_main ();
+
+#ifdef GDK_WINDOWING_X11
+  {
+    Atom type;
+    gint format;
+    gulong nitems;
+    gulong bytes_after;
+    gulong *hide = NULL;
+
+    XGetWindowProperty (gdk_x11_get_default_xdisplay (),
+                        GDK_WINDOW_XID (gtk_widget_get_window (window)),
+                        gdk_x11_get_xatom_by_name ("_GTK_HIDE_TITLEBAR_WHEN_MAXIMIZED"),
+                        0,
+                        G_MAXLONG,
+                        False,
+                        XA_CARDINAL,
+                        &type,
+                        &format,
+                        &nitems,
+                        &bytes_after,
+                        (guchar **) &hide);
+
+    g_assert_cmpint (type, !=, None);
+    g_assert_cmpint (type, ==, XA_CARDINAL);
+    g_assert_cmpint (format, ==, 32);
+    g_assert_cmpint (nitems, ==, 1);
+    g_assert_cmpint (hide[0], ==, 1);
+
+    XFree (hide);
+  }
+#endif
+
+  gtk_widget_destroy (window);
+}
+
 int
 main (int argc, char *argv[])
 {
@@ -356,6 +428,7 @@ main (int argc, char *argv[])
   g_test_add_func ("/window/show-hide", test_show_hide);
   g_test_add_func ("/window/show-hide2", test_show_hide2);
   g_test_add_func ("/window/show-hide3", test_show_hide3);
+  g_test_add_func ("/window/hide-titlebar-when-maximized", test_hide_titlebar_when_maximized);
 
   return g_test_run ();
 }