[gtk+] Add more child-handling related tests

[Matthias Clasen <matthiasc src gnome org>]

commit ac10ac6450e62ca159fd1f800bef68eaf2137bd6
Author: Matthias Clasen <mclasen redhat com>
Date:   Wed Jun 29 00:35:24 2011 -0400

    Add more child-handling related tests

 tests/a11y/Makefile.am |    5 +-
 tests/a11y/children.c  |  169 ++++++++++++++++++++++++++++++++++++++++++++++++
 tests/a11y/misc.c      |   52 ---------------
 3 files changed, 170 insertions(+), 56 deletions(-)
---
diff --git a/tests/a11y/Makefile.am b/tests/a11y/Makefile.am
index e7ef78f..d6c824f 100644
--- a/tests/a11y/Makefile.am
+++ b/tests/a11y/Makefile.am
@@ -18,14 +18,11 @@ LDADD = \
 
 TEST_PROGS += accessibility-dump
 
-accessibility_dump_SOURCES = \
-	accessibility-dump.c
-
 TEST_PROGS += tree-performance
 
 TEST_PROGS += text
 
-TEST_PROGS += misc
+TEST_PROGS += children
 
 EXTRA_DIST += \
 	hello-world.ui hello-world.txt \
diff --git a/tests/a11y/children.c b/tests/a11y/children.c
new file mode 100644
index 0000000..af0d21b
--- /dev/null
+++ b/tests/a11y/children.c
@@ -0,0 +1,169 @@
+/*
+ * Copyright (C) 2011 Red Hat Inc.
+ *
+ * Author:
+ *      Matthias Clasen <mclasen redhat com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#include <gtk/gtk.h>
+#include <string.h>
+
+static void
+test_scrolled_window_child_count (void)
+{
+  GtkWidget *sw;
+  AtkObject *accessible;
+
+  sw = gtk_scrolled_window_new (NULL, NULL);
+  g_object_ref_sink (sw);
+  gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),
+                                  GTK_POLICY_ALWAYS, GTK_POLICY_ALWAYS);
+  gtk_scrolled_window_add_with_viewport (GTK_SCROLLED_WINDOW (sw), gtk_label_new ("Bla"));
+
+  accessible = gtk_widget_get_accessible (sw);
+  g_assert_cmpint (atk_object_get_n_accessible_children (accessible), ==, 3);
+
+  g_object_unref (sw);
+}
+
+typedef struct {
+  gint count;
+  gint index;
+  gint n_children;
+} SignalData;
+
+static void
+children_changed (AtkObject  *accessible,
+                  guint       index,
+                  gpointer    child,
+                  SignalData *data)
+{
+  data->count++;
+  data->index = index;
+  data->n_children = atk_object_get_n_accessible_children (accessible);
+}
+
+static void
+add_child (GtkWidget *container,
+           GtkWidget *child)
+{
+  if (GTK_IS_SCROLLED_WINDOW (container))
+    gtk_scrolled_window_add_with_viewport (GTK_SCROLLED_WINDOW (container), child);
+  else
+    gtk_container_add (GTK_CONTAINER (container), child);
+}
+
+static void
+remove_child (GtkWidget *container,
+              GtkWidget *child)
+{
+  if (GTK_IS_SCROLLED_WINDOW (container))
+    {
+      if (gtk_widget_get_parent (child) != container)
+        child = gtk_widget_get_parent (child);
+    }
+
+  gtk_container_remove (GTK_CONTAINER (container), child);
+}
+
+static void
+test_add_remove (GtkWidget *widget)
+{
+  AtkObject *accessible;
+  SignalData add_data;
+  SignalData remove_data;
+  GtkWidget *child[3];
+  gint i, j;
+  gint step_children;
+
+  accessible = gtk_widget_get_accessible (widget);
+
+  add_data.count = 0;
+  remove_data.count = 0;
+  g_signal_connect (accessible, "children_changed::add",
+                    G_CALLBACK (children_changed), &add_data);
+  g_signal_connect (accessible, "children_changed::remove",
+                    G_CALLBACK (children_changed), &remove_data);
+
+  step_children = atk_object_get_n_accessible_children (accessible);
+
+  for (i = 0; i < 3; i++)
+    {
+      if (gtk_container_child_type (GTK_CONTAINER (widget)) == G_TYPE_NONE)
+        break;
+
+      child[i] = gtk_label_new ("bla");
+      add_child (widget, child[i]);
+
+      g_assert_cmpint (add_data.count, ==, i + 1);
+      g_assert_cmpint (add_data.n_children, ==, step_children + i + 1);
+      g_assert_cmpint (remove_data.count, ==, 0);
+    }
+  for (j = 0 ; j < i; j++)
+    {
+      remove_child (widget, child[j]);
+      g_assert_cmpint (add_data.count, ==, i);
+      g_assert_cmpint (remove_data.count, ==, j + 1);
+      g_assert_cmpint (remove_data.n_children, ==, step_children + i - j - 1);
+    }
+
+  g_signal_handlers_disconnect_by_func (accessible, G_CALLBACK (children_changed), &add_data);
+  g_signal_handlers_disconnect_by_func (accessible, G_CALLBACK (children_changed), &remove_data);
+}
+
+static void
+add_child_test (const gchar      *prefix,
+                GTestFixtureFunc  test_func,
+                GtkWidget        *widget)
+{
+  gchar *path;
+
+  path = g_strdup_printf ("%s/%s", prefix, G_OBJECT_TYPE_NAME (widget));
+  g_test_add_vtable (path,
+                     0,
+                     g_object_ref (widget),
+                     0,
+                     (GTestFixtureFunc) test_func,
+                     (GTestFixtureFunc) g_object_unref);
+  g_free (path);
+}
+
+static void
+add_child_tests (GtkWidget *widget)
+{
+  g_object_ref_sink (widget);
+  add_child_test ("/child/add-remove", (GTestFixtureFunc)test_add_remove, widget);
+  g_object_unref (widget);
+}
+
+int
+main (int argc, char *argv[])
+{
+  gtk_test_init (&argc, &argv, NULL);
+
+  g_test_add_func ("/scrolledwindow/child-count", test_scrolled_window_child_count);
+
+  add_child_tests (gtk_scrolled_window_new (NULL, NULL));
+  add_child_tests (gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0));
+  add_child_tests (gtk_paned_new (GTK_ORIENTATION_HORIZONTAL));
+  add_child_tests (gtk_grid_new ());
+  add_child_tests (gtk_event_box_new ());
+
+  return g_test_run ();
+}
+