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[gtk+] Add accessibility for GtkLevelBar and value test

commit 92f0c5c38476687a9a50c31eac4f674a7e0b9c91
Author: Mike Gorse <mgorse suse com>
Date:   Mon Dec 3 16:07:23 2012 -0600

    Add accessibility for GtkLevelBar and value test

 configure.ac                     |    2 +-
 gtk/a11y/Makefile.am             |    2 +
 gtk/a11y/gtklevelbaraccessible.c |  140 ++++++++++++++++++++++++++++++++++++++
 gtk/a11y/gtklevelbaraccessible.h |   53 ++++++++++++++
 gtk/gtklevelbar.c                |    4 +
 tests/a11y/Makefile.am           |    2 +
 tests/a11y/value.c               |  127 ++++++++++++++++++++++++++++++++++
 7 files changed, 329 insertions(+), 1 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 6b9e4ac..d8052f3 100644
--- a/configure.ac
+++ b/configure.ac
@@ -44,7 +44,7 @@ m4_define([gtk_binary_version], [3.0.0])
 # required versions of other packages
 m4_define([glib_required_version], [2.35.3])
 m4_define([pango_required_version], [1.32.4])
-m4_define([atk_required_version], [2.5.3])
+m4_define([atk_required_version], [2.7.4])
 m4_define([cairo_required_version], [1.10.0])
 m4_define([gdk_pixbuf_required_version], [2.27.1])
 m4_define([introspection_required_version], [1.32.0])
diff --git a/gtk/a11y/Makefile.am b/gtk/a11y/Makefile.am
index 91136c6..a451e8c 100644
--- a/gtk/a11y/Makefile.am
+++ b/gtk/a11y/Makefile.am
@@ -23,6 +23,7 @@ gtka11y_c_sources =			\
 	gtkimageaccessible.c		\
 	gtkimagecellaccessible.c	\
 	gtklabelaccessible.c		\
+	gtklevelbaraccessible.c \
 	gtklinkbuttonaccessible.c	\
 	gtklockbuttonaccessible.c	\
 	gtkmenuaccessible.c		\
@@ -69,6 +70,7 @@ gtka11yinclude_HEADERS =		\
 	gtkimageaccessible.h		\
 	gtkimagecellaccessible.h	\
 	gtklabelaccessible.h		\
+	gtklevelbaraccessible.h \
 	gtklinkbuttonaccessible.h	\
 	gtklockbuttonaccessible.h	\
 	gtkmenuaccessible.h		\
diff --git a/gtk/a11y/gtklevelbaraccessible.c b/gtk/a11y/gtklevelbaraccessible.c
new file mode 100644
index 0000000..be90df6
--- /dev/null
+++ b/gtk/a11y/gtklevelbaraccessible.c
@@ -0,0 +1,140 @@
+/* GAIL - The GNOME Accessibility Implementation Library
+ * Copyright 2001, 2002, 2003 Sun Microsystems Inc.
+ * Copyright 2013 SUSE LLC.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "config.h"
+
+#include <string.h>
+#include <gtk/gtk.h>
+#include "gtklevelbaraccessible.h"
+
+
+static void atk_value_interface_init (AtkValueIface *iface);
+
+G_DEFINE_TYPE_WITH_CODE (GtkLevelBarAccessible, gtk_level_bar_accessible, GTK_TYPE_WIDGET_ACCESSIBLE,
+                         G_IMPLEMENT_INTERFACE (ATK_TYPE_VALUE, atk_value_interface_init))
+
+static void
+gtk_level_bar_accessible_initialize (AtkObject *obj,
+                                       gpointer  data)
+{
+  ATK_OBJECT_CLASS (gtk_level_bar_accessible_parent_class)->initialize (obj, data);
+
+  obj->role = ATK_ROLE_LEVEL_BAR;
+}
+
+static void
+gtk_level_bar_accessible_notify_gtk (GObject    *obj,
+                                       GParamSpec *pspec)
+{
+  GtkWidget *widget = GTK_WIDGET (obj);
+  GtkLevelBarAccessible *level_bar = GTK_LEVEL_BAR_ACCESSIBLE (gtk_widget_get_accessible (widget));
+
+  if (strcmp (pspec->name, "value") == 0)
+    {
+      g_object_notify (G_OBJECT (level_bar), "accessible-value");
+    }
+  else
+    GTK_WIDGET_ACCESSIBLE_CLASS (gtk_level_bar_accessible_parent_class)->notify_gtk (obj, pspec);
+}
+
+
+
+static void
+gtk_level_bar_accessible_class_init (GtkLevelBarAccessibleClass *klass)
+{
+  AtkObjectClass *class = ATK_OBJECT_CLASS (klass);
+  GtkWidgetAccessibleClass *widget_class = (GtkWidgetAccessibleClass*)klass;
+
+  widget_class->notify_gtk = gtk_level_bar_accessible_notify_gtk;
+
+  class->initialize = gtk_level_bar_accessible_initialize;
+}
+
+static void
+gtk_level_bar_accessible_init (GtkLevelBarAccessible *button)
+{
+}
+
+static void
+gtk_level_bar_accessible_get_current_value (AtkValue *obj,
+                                              GValue   *value)
+{
+  GtkWidget *widget;
+  GtkLevelBar *level_bar;
+
+  widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (obj));
+  level_bar = GTK_LEVEL_BAR (widget);
+
+  memset (value,  0, sizeof (GValue));
+  g_value_init (value, G_TYPE_DOUBLE);
+  g_value_set_double (value, gtk_level_bar_get_value (level_bar));
+}
+
+static void
+gtk_level_bar_accessible_get_maximum_value (AtkValue *obj,
+                                              GValue   *value)
+{
+  GtkWidget *widget;
+  GtkLevelBar *level_bar;
+
+  widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (obj));
+  level_bar = GTK_LEVEL_BAR (widget);
+
+  memset (value,  0, sizeof (GValue));
+  g_value_init (value, G_TYPE_DOUBLE);
+  g_value_set_double (value, gtk_level_bar_get_max_value (level_bar));
+}
+
+static void
+gtk_level_bar_accessible_get_minimum_value (AtkValue *obj,
+                                              GValue   *value)
+{
+  GtkWidget *widget;
+  GtkLevelBar *level_bar;
+
+  widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (obj));
+  level_bar = GTK_LEVEL_BAR (widget);
+
+  memset (value,  0, sizeof (GValue));
+  g_value_init (value, G_TYPE_DOUBLE);
+  g_value_set_double (value, gtk_level_bar_get_min_value (level_bar));
+}
+
+static gboolean
+gtk_level_bar_accessible_set_current_value (AtkValue     *obj,
+                                              const GValue *value)
+{
+  GtkWidget *widget;
+  GtkLevelBar *level_bar;
+
+  widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (obj));
+  level_bar = GTK_LEVEL_BAR (widget);
+
+  gtk_level_bar_set_value (level_bar, g_value_get_double (value));
+
+  return TRUE;
+}
+
+static void
+atk_value_interface_init (AtkValueIface *iface)
+{
+  iface->get_current_value = gtk_level_bar_accessible_get_current_value;
+  iface->get_maximum_value = gtk_level_bar_accessible_get_maximum_value;
+  iface->get_minimum_value = gtk_level_bar_accessible_get_minimum_value;
+  iface->set_current_value = gtk_level_bar_accessible_set_current_value;
+}
diff --git a/gtk/a11y/gtklevelbaraccessible.h b/gtk/a11y/gtklevelbaraccessible.h
new file mode 100644
index 0000000..6659346
--- /dev/null
+++ b/gtk/a11y/gtklevelbaraccessible.h
@@ -0,0 +1,53 @@
+/* GAIL - The GNOME Accessibility Implementation Library
+ * Copyright 2001 Sun Microsystems Inc.
+ * Copyright 2013 SUSE LLC.
+ *
+ * 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __GTK_LEVEL_BAR_ACCESSIBLE_H__
+#define __GTK_LEVEL_BAR_ACCESSIBLE_H__
+
+#include "gtkentryaccessible.h"
+
+G_BEGIN_DECLS
+
+#define GTK_TYPE_LEVEL_BAR_ACCESSIBLE                      (gtk_level_bar_accessible_get_type ())
+#define GTK_LEVEL_BAR_ACCESSIBLE(obj)                      (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_LEVEL_BAR_ACCESSIBLE, GtkLevelBarAccessible))
+#define GTK_LEVEL_BAR_ACCESSIBLE_CLASS(klass)              (G_TYPE_CHECK_CLASS_CAST ((klass), GTK_TYPE_LEVEL_BAR_ACCESSIBLE, GtkLevelBarAccessibleClass))
+#define GTK_IS_LEVEL_BAR_ACCESSIBLE(obj)                   (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTK_TYPE_LEVEL_BAR_ACCESSIBLE))
+#define GTK_IS_LEVEL_BAR_ACCESSIBLE_CLASS(klass)           (G_TYPE_CHECK_CLASS_TYPE ((klass), GTK_TYPE_LEVEL_BAR_ACCESSIBLE))
+#define GTK_LEVEL_BAR_ACCESSIBLE_GET_CLASS(obj)            (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_LEVEL_BAR_ACCESSIBLE, GtkLevelBarAccessibleClass))
+
+typedef struct _GtkLevelBarAccessible        GtkLevelBarAccessible;
+typedef struct _GtkLevelBarAccessibleClass   GtkLevelBarAccessibleClass;
+typedef struct _GtkLevelBarAccessiblePrivate GtkLevelBarAccessiblePrivate;
+
+struct _GtkLevelBarAccessible
+{
+  GtkWidgetAccessible parent;
+
+  GtkLevelBarAccessiblePrivate *priv;
+};
+
+struct _GtkLevelBarAccessibleClass
+{
+  GtkWidgetAccessibleClass parent_class;
+};
+
+GType gtk_level_bar_accessible_get_type (void);
+
+G_END_DECLS
+
+#endif /* __GTK_LEVEL_BAR_ACCESSIBLE_H__ */
diff --git a/gtk/gtklevelbar.c b/gtk/gtklevelbar.c
index 25a8161..fff4891 100644
--- a/gtk/gtklevelbar.c
+++ b/gtk/gtklevelbar.c
@@ -97,6 +97,8 @@
 #include <math.h>
 #include <stdlib.h>
 
+#include "a11y/gtklevelbaraccessible.h"
+
 #include "fallback-c89.c"
 
 #define DEFAULT_BLOCK_SIZE 3
@@ -1024,6 +1026,8 @@ gtk_level_bar_class_init (GtkLevelBarClass *klass)
 
   g_type_class_add_private (klass, sizeof (GtkLevelBarPrivate));
   g_object_class_install_properties (oclass, LAST_PROPERTY, properties);
+
+  gtk_widget_class_set_accessible_type (wclass, GTK_TYPE_LEVEL_BAR_ACCESSIBLE);
 }
 
 static void
diff --git a/tests/a11y/Makefile.am b/tests/a11y/Makefile.am
index b84a1ff..d7a54be 100644
--- a/tests/a11y/Makefile.am
+++ b/tests/a11y/Makefile.am
@@ -31,6 +31,8 @@ TEST_PROGS += children
 
 TEST_PROGS += derive
 
+TEST_PROGS += value
+
 # the focus test has no chance of working until
 # all the idle handlers in gail are gone
 #
diff --git a/tests/a11y/value.c b/tests/a11y/value.c
new file mode 100644
index 0000000..af50a36
--- /dev/null
+++ b/tests/a11y/value.c
@@ -0,0 +1,127 @@
+/*
+ * Copyright (C) 2011 Red Hat Inc.
+ * Copyright (C) 2012 SUSE LLC.
+ *
+ * Author:
+ *      Mike Gorse <mgorse suse 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <gtk/gtk.h>
+#include <string.h>
+
+static void
+set_value (GtkWidget   *widget,
+           gint value)
+{
+  if (GTK_IS_LEVEL_BAR (widget))
+    gtk_level_bar_set_value (GTK_LEVEL_BAR (widget), value);
+  else if (GTK_IS_RANGE (widget))
+    {
+      GtkAdjustment *adjustment = gtk_range_get_adjustment (GTK_RANGE (widget));
+      gtk_adjustment_set_value (adjustment, value);
+    }
+  else if (GTK_IS_SPIN_BUTTON (widget))
+    {
+      GtkAdjustment *adjustment = gtk_spin_button_get_adjustment (GTK_SPIN_BUTTON (widget));
+      gtk_adjustment_set_value (adjustment, value);
+    }
+}
+
+typedef struct
+{
+  gint count;
+  gchar *last_name;
+} NotifyData;
+
+static void
+notify_cb (GObject    *obj,
+           GParamSpec *pspec, NotifyData *data)
+{
+  data->count++;
+  if (data->last_name)
+    g_free (data->last_name);
+  data->last_name = g_strdup (pspec->name);
+}
+
+static void
+test_basic (GtkWidget *widget)
+{
+  NotifyData notify_data;
+  AtkObject *atk_object;
+  AtkValue *atk_value;
+  gdouble value = 50;
+  GValue ret;
+
+  atk_object = gtk_widget_get_accessible (widget);
+  atk_value = ATK_VALUE (atk_object);
+
+  memset (&notify_data, 0, sizeof (notify_data));
+  g_signal_connect (atk_object, "notify", G_CALLBACK (notify_cb), &notify_data);
+  set_value (widget, value);
+  g_assert_cmpint (notify_data.count, ==, 1);
+  g_assert_cmpstr (notify_data.last_name, ==, "accessible-value");
+
+  memset (&ret, 0, sizeof (ret));
+  atk_value_get_current_value (atk_value, &ret);
+  g_assert_cmpfloat (g_value_get_double (&ret), ==, value);
+
+  g_free (notify_data.last_name);
+  g_signal_handlers_disconnect_by_func (atk_object, G_CALLBACK (notify_cb), &notify_data);
+}
+
+static void
+setup_test (GtkWidget *widget)
+{
+  set_value (widget, 0);
+}
+
+static void
+add_value_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),
+                     (GTestFixtureFunc) setup_test,
+                     (GTestFixtureFunc) test_func,
+                     (GTestFixtureFunc) g_object_unref);
+  g_free (path);
+}
+
+static void
+add_value_tests (GtkWidget *widget)
+{
+  g_object_ref_sink (widget);
+  add_value_test ("/value/basic", (GTestFixtureFunc) test_basic, widget);
+  g_object_unref (widget);
+}
+
+int
+main (int argc, char *argv[])
+{
+  gtk_test_init (&argc, &argv, NULL);
+
+  g_test_bug_base ("http://bugzilla.gnome.org/";);
+
+  add_value_tests (gtk_spin_button_new_with_range (0, 100, 1));
+  add_value_tests (gtk_level_bar_new_for_interval (0, 100));
+
+  return g_test_run ();
+}
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