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/* gtkatspivalue.c: AT-SPI Value implementation
*
* Copyright 2020 Red Hat, Inc.
*
* 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 "gtkatspivalueprivate.h"
#include "a11y/atspi/atspi-value.h"
#include "gtkaccessiblerangeprivate.h"
#include "gtkatcontextprivate.h"
#include "gtkdebug.h"
#include <gio/gio.h>
static GVariant *
handle_value_get_property (GDBusConnection *connection,
const gchar *sender,
const gchar *object_path,
const gchar *interface_name,
const gchar *property_name,
GError **error,
gpointer user_data)
{
GtkATContext *ctx = GTK_AT_CONTEXT (user_data);
/* Numeric attributes */
struct {
const char *name;
GtkAccessibleProperty property;
} num_properties[] = {
{ "MinimumValue", GTK_ACCESSIBLE_PROPERTY_VALUE_MIN },
{ "MaximumValue", GTK_ACCESSIBLE_PROPERTY_VALUE_MAX },
{ "CurrentValue", GTK_ACCESSIBLE_PROPERTY_VALUE_NOW },
};
/* String attributes */
struct {
const char *name;
GtkAccessibleProperty property;
} str_properties[] = {
{ "Text", GTK_ACCESSIBLE_PROPERTY_VALUE_TEXT },
};
for (int i = 0; i < G_N_ELEMENTS (num_properties); i++)
{
if (g_strcmp0 (property_name, num_properties[i].name) == 0)
{
if (gtk_at_context_has_accessible_property (ctx, num_properties[i].property))
{
GtkAccessibleValue *value =
gtk_at_context_get_accessible_property (ctx, num_properties[i].property);
return g_variant_new_double (gtk_number_accessible_value_get (value));
}
}
}
for (int i = 0; i < G_N_ELEMENTS (str_properties); i++)
{
if (g_strcmp0 (property_name, str_properties[i].name) == 0)
{
if (gtk_at_context_has_accessible_property (ctx, str_properties[i].property))
{
GtkAccessibleValue *value =
gtk_at_context_get_accessible_property (ctx, str_properties[i].property);
return g_variant_new_string (gtk_string_accessible_value_get (value));
}
}
}
/* Special-case MinimumIncrement as it does not have an ARIA counterpart */
if (g_strcmp0 (property_name, "MinimumIncrement") == 0)
return g_variant_new_double (0.0);
/* fall back for widgets that should have the
* properties but don't
*/
return g_variant_new_double (0.0);
}
static gboolean
handle_value_set_property (GDBusConnection *connection,
const gchar *sender,
const gchar *object_path,
const gchar *interface_name,
const gchar *property_name,
GVariant *value,
GError **error,
gpointer user_data)
{
GtkATContext *self = user_data;
GtkAccessibleRange *range = GTK_ACCESSIBLE_RANGE (gtk_at_context_get_accessible (self));
if (g_strcmp0 (property_name, "CurrentValue") == 0)
return gtk_accessible_range_set_current_value (range, g_variant_get_double (value));
return FALSE;
}
static const GDBusInterfaceVTable value_vtable = {
NULL,
handle_value_get_property,
handle_value_set_property,
};
const GDBusInterfaceVTable *
gtk_atspi_get_value_vtable (GtkAccessible *accessible)
{
if (GTK_IS_ACCESSIBLE_RANGE (accessible))
return &value_vtable;
return NULL;
}
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