[mutter] tests/test-client: Add 'fullscreen' and 'unfullscreen' commands

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

commit 9b8e5a05f59ae0a7ed6c260d308bbd534bf2414f
Author: Jonas Ådahl <jadahl gmail com>
Date:   Thu Apr 2 18:28:24 2020 +0200

    tests/test-client: Add 'fullscreen' and 'unfullscreen' commands
    
    This needs some hand holding when calculating the "full" size of the
    window, as the titlebar isn't actually shown.
    
    https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1171

 src/tests/meson.build   |  1 +
 src/tests/test-client.c | 33 +++++++++++++++++++++++++++++++++
 src/tests/test-runner.c |  2 ++
 3 files changed, 36 insertions(+)
---
diff --git a/src/tests/meson.build b/src/tests/meson.build
index aa2edac84..6a0a8d61a 100644
--- a/src/tests/meson.build
+++ b/src/tests/meson.build
@@ -143,6 +143,7 @@ stacking_tests = [
   'set-parent-exported',
   'restore-size',
   'unmaximize-new-size',
+  'fullscreen-maximize',
 ]
 
 foreach stacking_test: stacking_tests
diff --git a/src/tests/test-client.c b/src/tests/test-client.c
index 618161ac5..134d9b465 100644
--- a/src/tests/test-client.c
+++ b/src/tests/test-client.c
@@ -246,6 +246,11 @@ static int
 calculate_titlebar_height (GtkWindow *window)
 {
   GtkWidget *titlebar;
+  GdkWindow *gdk_window;
+
+  gdk_window = gtk_widget_get_window (GTK_WIDGET (window));
+  if (gdk_window_get_state (gdk_window) & GDK_WINDOW_STATE_FULLSCREEN)
+    return 0;
 
   titlebar = gtk_window_get_titlebar (window);
   if (!titlebar)
@@ -733,6 +738,34 @@ process_line (const char *line)
 
       gtk_window_unmaximize (GTK_WINDOW (window));
     }
+  else if (strcmp (argv[0], "fullscreen") == 0)
+    {
+      if (argc != 2)
+        {
+          g_print ("usage: fullscreen <id>\n");
+          goto out;
+        }
+
+      GtkWidget *window = lookup_window (argv[1]);
+      if (!window)
+        goto out;
+
+      gtk_window_fullscreen (GTK_WINDOW (window));
+    }
+  else if (strcmp (argv[0], "unfullscreen") == 0)
+    {
+      if (argc != 2)
+        {
+          g_print ("usage: unfullscreen <id>\n");
+          goto out;
+        }
+
+      GtkWidget *window = lookup_window (argv[1]);
+      if (!window)
+        goto out;
+
+      gtk_window_unfullscreen (GTK_WINDOW (window));
+    }
   else if (strcmp (argv[0], "assert_size") == 0)
     {
       int expected_width;
diff --git a/src/tests/test-runner.c b/src/tests/test-runner.c
index 6364d0ca9..6f3d24bbf 100644
--- a/src/tests/test-runner.c
+++ b/src/tests/test-runner.c
@@ -600,6 +600,8 @@ test_case_do (TestCase *test,
            strcmp (argv[0], "unminimize") == 0 ||
            strcmp (argv[0], "maximize") == 0 ||
            strcmp (argv[0], "unmaximize") == 0 ||
+           strcmp (argv[0], "fullscreen") == 0 ||
+           strcmp (argv[0], "unfullscreen") == 0 ||
            strcmp (argv[0], "destroy") == 0)
     {
       if (argc != 2)