Learning_GTK4_tree/gtk/gtktestatcontext.c

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2023-12-12 11:36:42 +01:00
/* 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,
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_platform_change (GtkATContext *self,
GtkAccessiblePlatformChange changed_platform)
{
if (GTK_DEBUG_CHECK (A11Y))
{
GtkAccessible *accessible;
accessible = gtk_at_context_get_accessible (self);
g_print ("*** Accessible platform state changed for accessible “%s”:\n",
G_OBJECT_TYPE_NAME (accessible));
if (changed_platform & GTK_ACCESSIBLE_PLATFORM_CHANGE_FOCUSABLE)
g_print ("*** focusable = %d\n",
gtk_accessible_get_platform_state (accessible, GTK_ACCESSIBLE_PLATFORM_STATE_FOCUSABLE));
if (changed_platform & GTK_ACCESSIBLE_PLATFORM_CHANGE_FOCUSED)
g_print ("*** focused = %d\n",
gtk_accessible_get_platform_state (accessible, GTK_ACCESSIBLE_PLATFORM_STATE_FOCUSED));
if (changed_platform & GTK_ACCESSIBLE_PLATFORM_CHANGE_ACTIVE)
g_print ("*** active = %d\n",
gtk_accessible_get_platform_state (accessible, GTK_ACCESSIBLE_PLATFORM_STATE_ACTIVE));
}
}
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;
context_class->platform_change = gtk_test_at_context_platform_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
* @display: a `GdkDisplay`
*
* 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,
GdkDisplay *display)
{
return g_object_new (GTK_TYPE_TEST_AT_CONTEXT,
"accessible-role", accessible_role,
"accessible", accessible,
"display", display,
NULL);
}
/**
* gtk_test_accessible_has_role:
* @accessible: a `GtkAccessible`
* @role: a `GtkAccessibleRole`
*
* Checks whether the `GtkAccessible:accessible-role` of the accessible
* is @role.
*
* Returns: %TRUE if the role matches
*/
gboolean
gtk_test_accessible_has_role (GtkAccessible *accessible,
GtkAccessibleRole role)
{
g_return_val_if_fail (GTK_IS_ACCESSIBLE (accessible), FALSE);
return gtk_accessible_get_accessible_role (accessible) == role;
}
/**
* gtk_test_accessible_has_property:
* @accessible: a `GtkAccessible`
* @property: a `GtkAccessibleProperty`
*
* Checks whether the `GtkAccessible` has @property set.
*
* Returns: %TRUE if the @property is set in the @accessible
*/
gboolean
gtk_test_accessible_has_property (GtkAccessible *accessible,
GtkAccessibleProperty property)
{
GtkATContext *context;
gboolean res;
g_return_val_if_fail (GTK_IS_ACCESSIBLE (accessible), FALSE);
context = gtk_accessible_get_at_context (accessible);
if (context == NULL)
return FALSE;
res = gtk_at_context_has_accessible_property (context, property);
g_object_unref (context);
return res;
}
/**
* 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);
if (error != NULL)
{
res = g_strdup (error->message);
g_error_free (error);
return res;
}
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);
g_object_unref (context);
return res;
}
/**
* gtk_test_accessible_has_state:
* @accessible: a `GtkAccessible`
* @state: a `GtkAccessibleState`
*
* Checks whether the `GtkAccessible` has @state set.
*
* Returns: %TRUE if the @state is set in the @accessible
*/
gboolean
gtk_test_accessible_has_state (GtkAccessible *accessible,
GtkAccessibleState state)
{
GtkATContext *context;
gboolean res;
g_return_val_if_fail (GTK_IS_ACCESSIBLE (accessible), FALSE);
context = gtk_accessible_get_at_context (accessible);
if (context == NULL)
return FALSE;
res = gtk_at_context_has_accessible_state (context, state);
g_object_unref (context);
return res;
}
/**
* 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);
if (error != NULL)
{
res = g_strdup (error->message);
g_error_free (error);
return res;
}
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);
g_object_unref (context);
return res;
}
/**
* gtk_test_accessible_has_relation:
* @accessible: a `GtkAccessible`
* @relation: a `GtkAccessibleRelation`
*
* Checks whether the `GtkAccessible` has @relation set.
*
* Returns: %TRUE if the @relation is set in the @accessible
*/
gboolean
gtk_test_accessible_has_relation (GtkAccessible *accessible,
GtkAccessibleRelation relation)
{
GtkATContext *context;
gboolean res;
g_return_val_if_fail (GTK_IS_ACCESSIBLE (accessible), FALSE);
context = gtk_accessible_get_at_context (accessible);
if (context == NULL)
return FALSE;
res = gtk_at_context_has_accessible_relation (context, relation);
g_object_unref (context);
return res;
}
/**
* 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);
if (error != NULL)
{
res = g_strdup (error->message);
g_error_free (error);
return res;
}
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);
g_object_unref (context);
return res;
}
/*< private >
* gtk_test_accessible_assertion_message_role:
* @domain: a domain
* @file: a file name
* @line: the line in @file
* @func: a function name in @file
* @expr: the expression being tested
* @accessible: a `GtkAccessible`
* @expected_role: the expected `GtkAccessibleRole`
* @actual_role: the actual `GtkAccessibleRole`
*
* Prints an assertion message for gtk_test_accessible_assert_role().
*/
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);
}