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/* gtkaccessiblerelationset.c: Accessible relation set
*
* 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 "gtkaccessiblerelationsetprivate.h"
#include "gtkbitmaskprivate.h"
#include "gtkenums.h"
/* Keep in sync with GtkAccessibleRelation in gtkenums.h */
#define LAST_RELATION GTK_ACCESSIBLE_RELATION_SET_SIZE
struct _GtkAccessibleRelationSet
{
GtkBitmask *relation_set;
GtkAccessibleValue **relation_values;
};
static GtkAccessibleRelationSet *
gtk_accessible_relation_set_init (GtkAccessibleRelationSet *self)
{
self->relation_set = _gtk_bitmask_new ();
self->relation_values = g_new (GtkAccessibleValue *, LAST_RELATION);
/* Initialize all relation values, so we can always get the full set */
for (int i = 0; i < LAST_RELATION; i++)
self->relation_values[i] = gtk_accessible_value_get_default_for_relation (i);
return self;
}
GtkAccessibleRelationSet *
gtk_accessible_relation_set_new (void)
{
GtkAccessibleRelationSet *set = g_rc_box_new0 (GtkAccessibleRelationSet);
return gtk_accessible_relation_set_init (set);
}
GtkAccessibleRelationSet *
gtk_accessible_relation_set_ref (GtkAccessibleRelationSet *self)
{
g_return_val_if_fail (self != NULL, NULL);
return g_rc_box_acquire (self);
}
static void
gtk_accessible_relation_set_free (gpointer data)
{
GtkAccessibleRelationSet *self = data;
for (int i = 0; i < LAST_RELATION; i++)
{
if (self->relation_values[i] != NULL)
gtk_accessible_value_unref (self->relation_values[i]);
}
g_free (self->relation_values);
_gtk_bitmask_free (self->relation_set);
}
void
gtk_accessible_relation_set_unref (GtkAccessibleRelationSet *self)
{
g_rc_box_release_full (self, gtk_accessible_relation_set_free);
}
void
gtk_accessible_relation_set_add (GtkAccessibleRelationSet *self,
GtkAccessibleRelation relation,
GtkAccessibleValue *value)
{
g_return_if_fail (relation >= GTK_ACCESSIBLE_RELATION_ACTIVE_DESCENDANT &&
relation <= GTK_ACCESSIBLE_RELATION_SET_SIZE);
if (gtk_accessible_relation_set_contains (self, relation))
gtk_accessible_value_unref (self->relation_values[relation]);
else
self->relation_set = _gtk_bitmask_set (self->relation_set, relation, TRUE);
self->relation_values[relation] = gtk_accessible_value_ref (value);
}
void
gtk_accessible_relation_set_remove (GtkAccessibleRelationSet *self,
GtkAccessibleRelation relation)
{
g_return_if_fail (relation >= GTK_ACCESSIBLE_RELATION_ACTIVE_DESCENDANT &&
relation <= GTK_ACCESSIBLE_RELATION_SET_SIZE);
if (gtk_accessible_relation_set_contains (self, relation))
{
g_clear_pointer (&(self->relation_values[relation]), gtk_accessible_value_unref);
self->relation_set = _gtk_bitmask_set (self->relation_set, relation, FALSE);
}
}
gboolean
gtk_accessible_relation_set_contains (GtkAccessibleRelationSet *self,
GtkAccessibleRelation relation)
{
g_return_val_if_fail (relation >= GTK_ACCESSIBLE_RELATION_ACTIVE_DESCENDANT &&
relation <= GTK_ACCESSIBLE_RELATION_SET_SIZE,
FALSE);
return _gtk_bitmask_get (self->relation_set, relation);
}
GtkAccessibleValue *
gtk_accessible_relation_set_get_value (GtkAccessibleRelationSet *self,
GtkAccessibleRelation relation)
{
g_return_val_if_fail (relation >= GTK_ACCESSIBLE_RELATION_ACTIVE_DESCENDANT &&
relation <= GTK_ACCESSIBLE_RELATION_SET_SIZE,
NULL);
return self->relation_values[relation];
}
static const char *relation_names[] = {
[GTK_ACCESSIBLE_RELATION_ACTIVE_DESCENDANT] = "activedescendant",
[GTK_ACCESSIBLE_RELATION_COL_COUNT] = "colcount",
[GTK_ACCESSIBLE_RELATION_COL_INDEX] = "colindex",
[GTK_ACCESSIBLE_RELATION_COL_INDEX_TEXT] = "colindextext",
[GTK_ACCESSIBLE_RELATION_COL_SPAN] = "colspan",
[GTK_ACCESSIBLE_RELATION_CONTROLS] = "controls",
[GTK_ACCESSIBLE_RELATION_DESCRIBED_BY] = "describedby",
[GTK_ACCESSIBLE_RELATION_DETAILS] = "details",
[GTK_ACCESSIBLE_RELATION_ERROR_MESSAGE] = "errormessage",
[GTK_ACCESSIBLE_RELATION_FLOW_TO] = "flowto",
[GTK_ACCESSIBLE_RELATION_LABELLED_BY] = "labelledby",
[GTK_ACCESSIBLE_RELATION_OWNS] = "owns",
[GTK_ACCESSIBLE_RELATION_POS_IN_SET] = "posinset",
[GTK_ACCESSIBLE_RELATION_ROW_COUNT] = "rowcount",
[GTK_ACCESSIBLE_RELATION_ROW_INDEX] = "rowindex",
[GTK_ACCESSIBLE_RELATION_ROW_INDEX_TEXT] = "rowindextext",
[GTK_ACCESSIBLE_RELATION_ROW_SPAN] = "rowspan",
[GTK_ACCESSIBLE_RELATION_SET_SIZE] = "setsize",
};
/*< private >
* gtk_accessible_relation_set_print:
* @self: a #GtkAccessibleRelationSet
* @only_set: %TRUE if only the set relations should be printed
* @buffer: a #GString
*
* Prints the contents of the #GtkAccessibleRelationSet into @buffer.
*/
void
gtk_accessible_relation_set_print (GtkAccessibleRelationSet *self,
gboolean only_set,
GString *buffer)
{
if (only_set && _gtk_bitmask_is_empty (self->relation_set))
{
g_string_append (buffer, "{}");
return;
}
g_string_append (buffer, "{\n");
for (int i = 0; i < G_N_ELEMENTS (relation_names); i++)
{
if (only_set && !_gtk_bitmask_get (self->relation_set, i))
continue;
g_string_append (buffer, " ");
g_string_append (buffer, relation_names[i]);
g_string_append (buffer, ": ");
gtk_accessible_value_print (self->relation_values[i], buffer);
g_string_append (buffer, ",\n");
}
g_string_append (buffer, "}");
}
/*< private >
* gtk_accessible_relation_set_to_string:
* @self: a #GtkAccessibleRelationSet
*
* Prints the contents of a #GtkAccessibleRelationSet into a string.
*
* Returns: (transfer full): a newly allocated string with the contents
* of the #GtkAccessibleRelationSet
*/
char *
gtk_accessible_relation_set_to_string (GtkAccessibleRelationSet *self)
{
GString *buf = g_string_new (NULL);
gtk_accessible_relation_set_print (self, TRUE, buf);
return g_string_free (buf, FALSE);
}
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