gtk2/gtk/gtktestatcontext.c
Matthias Clasen b5ee73d299 a11y: Pass on platform changes
Add an enum for 'platform changes' to the at context
change notification mechanism. This will let us pass
along things that ARIA considers 'platform state' such
as focus or editability. The difference between the
platform state and other ARIA states is that we don't
keep the platform state separately in the at context
- backends are expected to just query the widgets.

This is just about avoiding notify listeners for
change notification.
2020-10-12 15:10:40 -04:00

338 lines
9.9 KiB
C

/* gtktestatcontext.c: Test AT context
*
* Copyright 2020 GNOME Foundation
*
* SPDX-License-Identifier: LGPL-2.1-or-later
*
* 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 2.1 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 "gtktestatcontextprivate.h"
#include "gtkatcontextprivate.h"
#include "gtkaccessibleprivate.h"
#include "gtkdebug.h"
#include "gtkenums.h"
#include "gtkprivate.h"
#include "gtktypebuiltins.h"
struct _GtkTestATContext
{
GtkATContext parent_instance;
};
struct _GtkTestATContextClass
{
GtkATContextClass parent_class;
};
G_DEFINE_TYPE (GtkTestATContext, gtk_test_at_context, GTK_TYPE_AT_CONTEXT)
static void
gtk_test_at_context_state_change (GtkATContext *self,
GtkAccessibleStateChange changed_states,
GtkAccessiblePropertyChange changed_properties,
GtkAccessibleRelationChange changed_relations,
GtkAccessiblePlatformChange changed_platform,
GtkAccessibleAttributeSet *states,
GtkAccessibleAttributeSet *properties,
GtkAccessibleAttributeSet *relations)
{
if (GTK_DEBUG_CHECK (A11Y))
{
char *states_str = gtk_accessible_attribute_set_to_string (states);
char *properties_str = gtk_accessible_attribute_set_to_string (properties);
char *relations_str = gtk_accessible_attribute_set_to_string (relations);
GtkAccessibleRole role = gtk_at_context_get_accessible_role (self);
GtkAccessible *accessible = gtk_at_context_get_accessible (self);
GEnumClass *class = g_type_class_ref (GTK_TYPE_ACCESSIBLE_ROLE);
GEnumValue *value = g_enum_get_value (class, role);
g_print ("*** Accessible state changed for accessible “%s”, with role “%s” (%d):\n"
"*** states = %s\n"
"*** properties = %s\n"
"*** relations = %s\n",
G_OBJECT_TYPE_NAME (accessible),
value->value_nick,
role,
states_str,
properties_str,
relations_str);
g_type_class_unref (class);
g_free (states_str);
g_free (properties_str);
g_free (relations_str);
}
}
static void
gtk_test_at_context_class_init (GtkTestATContextClass *klass)
{
GtkATContextClass *context_class = GTK_AT_CONTEXT_CLASS (klass);
context_class->state_change = gtk_test_at_context_state_change;
}
static void
gtk_test_at_context_init (GtkTestATContext *self)
{
}
/*< private >
* gtk_test_at_context_new:
* @accessible_role: the #GtkAccessibleRole for the AT context
* @accessible: the #GtkAccessible instance which owns the AT context
*
* Creates a new #GtkTestATContext instance for @accessible, using the
* given @accessible_role.
*
* Returns: (transfer full): the newly created #GtkTestATContext instance
*/
GtkATContext *
gtk_test_at_context_new (GtkAccessibleRole accessible_role,
GtkAccessible *accessible)
{
return g_object_new (GTK_TYPE_TEST_AT_CONTEXT,
"accessible-role", accessible_role,
"accessible", accessible,
NULL);
}
gboolean
gtk_test_accessible_has_role (GtkAccessible *accessible,
GtkAccessibleRole role)
{
GtkATContext *context;
g_return_val_if_fail (GTK_IS_ACCESSIBLE (accessible), FALSE);
context = gtk_accessible_get_at_context (accessible);
if (context == NULL)
return FALSE;
return gtk_at_context_get_accessible_role (context) == role;
}
gboolean
gtk_test_accessible_has_property (GtkAccessible *accessible,
GtkAccessibleProperty property)
{
GtkATContext *context;
g_return_val_if_fail (GTK_IS_ACCESSIBLE (accessible), FALSE);
context = gtk_accessible_get_at_context (accessible);
if (context == NULL)
return FALSE;
return gtk_at_context_has_accessible_property (context, property);
}
/**
* gtk_test_accessible_check_property:
* @accessible: a #GtkAccessible
* @property: a #GtkAccessibleProperty
* @...: the expected value of @property
*
* Checks whether the accessible @property of @accessible is set to
* a specific value.
*
* Returns: (transfer full): the value of the accessible property
*/
char *
gtk_test_accessible_check_property (GtkAccessible *accessible,
GtkAccessibleProperty property,
...)
{
char *res = NULL;
va_list args;
va_start (args, property);
GError *error = NULL;
GtkAccessibleValue *check_value =
gtk_accessible_value_collect_for_property (property, &error, &args);
va_end (args);
g_assert_no_error (error);
if (check_value == NULL)
check_value = gtk_accessible_value_get_default_for_property (property);
GtkATContext *context = gtk_accessible_get_at_context (accessible);
GtkAccessibleValue *real_value =
gtk_at_context_get_accessible_property (context, property);
if (gtk_accessible_value_equal (check_value, real_value))
goto out;
res = gtk_accessible_value_to_string (real_value);
out:
gtk_accessible_value_unref (check_value);
return res;
}
gboolean
gtk_test_accessible_has_state (GtkAccessible *accessible,
GtkAccessibleState state)
{
GtkATContext *context;
g_return_val_if_fail (GTK_IS_ACCESSIBLE (accessible), FALSE);
context = gtk_accessible_get_at_context (accessible);
if (context == NULL)
return FALSE;
return gtk_at_context_has_accessible_state (context, state);
}
/**
* gtk_test_accessible_check_state:
* @accessible: a #GtkAccessible
* @state: a #GtkAccessibleState
* @...: the expected value of @state
*
* Checks whether the accessible @state of @accessible is set to
* a specific value.
*
* Returns: (transfer full): the value of the accessible state
*/
char *
gtk_test_accessible_check_state (GtkAccessible *accessible,
GtkAccessibleState state,
...)
{
char *res = NULL;
va_list args;
va_start (args, state);
GError *error = NULL;
GtkAccessibleValue *check_value =
gtk_accessible_value_collect_for_state (state, &error, &args);
va_end (args);
g_assert_no_error (error);
if (check_value == NULL)
check_value = gtk_accessible_value_get_default_for_state (state);
GtkATContext *context = gtk_accessible_get_at_context (accessible);
GtkAccessibleValue *real_value =
gtk_at_context_get_accessible_state (context, state);
if (gtk_accessible_value_equal (check_value, real_value))
goto out;
res = gtk_accessible_value_to_string (real_value);
out:
gtk_accessible_value_unref (check_value);
return res;
}
gboolean
gtk_test_accessible_has_relation (GtkAccessible *accessible,
GtkAccessibleRelation relation)
{
GtkATContext *context;
g_return_val_if_fail (GTK_IS_ACCESSIBLE (accessible), FALSE);
context = gtk_accessible_get_at_context (accessible);
if (context == NULL)
return FALSE;
return gtk_at_context_has_accessible_relation (context, relation);
}
/**
* gtk_test_accessible_check_relation:
* @accessible: a #GtkAccessible
* @relation: a #GtkAccessibleRelation
* @...: the expected value of @relation
*
* Checks whether the accessible @relation of @accessible is set to
* a specific value.
*
* Returns: (transfer full): the value of the accessible relation
*/
char *
gtk_test_accessible_check_relation (GtkAccessible *accessible,
GtkAccessibleRelation relation,
...)
{
char *res = NULL;
va_list args;
va_start (args, relation);
GError *error = NULL;
GtkAccessibleValue *check_value =
gtk_accessible_value_collect_for_relation (relation, &error, &args);
va_end (args);
g_assert_no_error (error);
if (check_value == NULL)
check_value = gtk_accessible_value_get_default_for_relation (relation);
GtkATContext *context = gtk_accessible_get_at_context (accessible);
GtkAccessibleValue *real_value =
gtk_at_context_get_accessible_relation (context, relation);
if (gtk_accessible_value_equal (check_value, real_value))
goto out;
res = gtk_accessible_value_to_string (real_value);
out:
gtk_accessible_value_unref (check_value);
return res;
}
void
gtk_test_accessible_assertion_message_role (const char *domain,
const char *file,
int line,
const char *func,
const char *expr,
GtkAccessible *accessible,
GtkAccessibleRole expected_role,
GtkAccessibleRole actual_role)
{
char *role_name = g_enum_to_string (GTK_TYPE_ACCESSIBLE_ROLE, actual_role);
char *s = g_strdup_printf ("assertion failed: (%s): %s.accessible-role = %s (%d)",
expr,
G_OBJECT_TYPE_NAME (accessible),
role_name,
actual_role);
g_assertion_message (domain, file, line, func, s);
g_free (role_name);
g_free (s);
}