gtk2/gtk/gtkaccessiblevaluestatic.c
Matthias Clasen 4c5df54e39 a11y: Be a bit safer against crashes
We are collecting values from varargs and use them
as indices into static arrays. We should at least
do some bounds checking to prevent silly crashes.
2020-07-27 00:21:01 -04:00

415 lines
13 KiB
C

/* gtkaccessiblevaluestatic.c: GtkAccessibleValue static implementations
*
* 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 "gtkaccessiblevalueprivate.h"
/* {{{ Undefined value */
static void
gtk_undefined_accessible_value_print (const GtkAccessibleValue *value,
GString *buffer)
{
g_string_append (buffer, "undefined");
}
static const GtkAccessibleValueClass GTK_UNDEFINED_ACCESSIBLE_VALUE = {
.type = GTK_ACCESSIBLE_VALUE_TYPE_UNDEFINED,
.type_name = "GtkUndefinedAccessibleValue",
.instance_size = sizeof (GtkAccessibleValue),
.print = gtk_undefined_accessible_value_print,
};
static GtkAccessibleValue undefined_value =
GTK_ACCESSIBLE_VALUE_INIT (&GTK_UNDEFINED_ACCESSIBLE_VALUE);
GtkAccessibleValue *
gtk_undefined_accessible_value_new (void)
{
return gtk_accessible_value_ref (&undefined_value);
}
int
gtk_undefined_accessible_value_get (const GtkAccessibleValue *value)
{
g_return_val_if_fail (value != NULL, GTK_ACCESSIBLE_VALUE_UNDEFINED);
g_return_val_if_fail (value->value_class == &GTK_UNDEFINED_ACCESSIBLE_VALUE,
GTK_ACCESSIBLE_VALUE_UNDEFINED);
return GTK_ACCESSIBLE_VALUE_UNDEFINED;
}
/* }}} */
/* {{{ Boolean values */
typedef struct
{
GtkAccessibleValue parent;
gboolean value;
} GtkBooleanAccessibleValue;
static gboolean
gtk_boolean_accessible_value_equal (const GtkAccessibleValue *value_a,
const GtkAccessibleValue *value_b)
{
const GtkBooleanAccessibleValue *bool_a = (GtkBooleanAccessibleValue *) value_a;
const GtkBooleanAccessibleValue *bool_b = (GtkBooleanAccessibleValue *) value_b;
return bool_a->value == bool_b->value;
}
static void
gtk_boolean_accessible_value_print (const GtkAccessibleValue *value,
GString *buffer)
{
const GtkBooleanAccessibleValue *self = (GtkBooleanAccessibleValue *) value;
g_string_append_printf (buffer, "%s", self->value ? "true" : "false");
}
static const GtkAccessibleValueClass GTK_BOOLEAN_ACCESSIBLE_VALUE = {
.type = GTK_ACCESSIBLE_VALUE_TYPE_BOOLEAN,
.type_name = "GtkBooleanAccessibleValue",
.instance_size = sizeof (GtkBooleanAccessibleValue),
.equal = gtk_boolean_accessible_value_equal,
.print = gtk_boolean_accessible_value_print,
};
static GtkBooleanAccessibleValue boolean_values[] = {
{ GTK_ACCESSIBLE_VALUE_INIT (&GTK_BOOLEAN_ACCESSIBLE_VALUE), FALSE },
{ GTK_ACCESSIBLE_VALUE_INIT (&GTK_BOOLEAN_ACCESSIBLE_VALUE), TRUE },
};
GtkAccessibleValue *
gtk_boolean_accessible_value_new (gboolean state)
{
if (state)
return gtk_accessible_value_ref ((GtkAccessibleValue *) &boolean_values[1]);
return gtk_accessible_value_ref ((GtkAccessibleValue *) &boolean_values[0]);
}
gboolean
gtk_boolean_accessible_value_get (const GtkAccessibleValue *value)
{
GtkBooleanAccessibleValue *self = (GtkBooleanAccessibleValue *) value;
g_return_val_if_fail (value != NULL, FALSE);
g_return_val_if_fail (value->value_class == &GTK_BOOLEAN_ACCESSIBLE_VALUE, FALSE);
return self->value;
}
/* }}} */
/* {{{ Tri-state values */
typedef struct {
GtkAccessibleValue parent;
GtkAccessibleTristate value;
} GtkTristateAccessibleValue;
static gboolean
gtk_tristate_accessible_value_equal (const GtkAccessibleValue *value_a,
const GtkAccessibleValue *value_b)
{
const GtkTristateAccessibleValue *self_a = (GtkTristateAccessibleValue *) value_a;
const GtkTristateAccessibleValue *self_b = (GtkTristateAccessibleValue *) value_b;
return self_a->value == self_b->value;
}
static void
gtk_tristate_accessible_value_print (const GtkAccessibleValue *value,
GString *buffer)
{
const GtkTristateAccessibleValue *self = (GtkTristateAccessibleValue *) value;
switch (self->value)
{
case GTK_ACCESSIBLE_TRISTATE_FALSE:
g_string_append (buffer, "false");
break;
case GTK_ACCESSIBLE_TRISTATE_TRUE:
g_string_append (buffer, "true");
break;
case GTK_ACCESSIBLE_TRISTATE_MIXED:
g_string_append (buffer, "mixed");
break;
default:
g_assert_not_reached ();
break;
}
}
static const GtkAccessibleValueClass GTK_TRISTATE_ACCESSIBLE_VALUE = {
.type = GTK_ACCESSIBLE_VALUE_TYPE_TRISTATE,
.type_name = "GtkTristateAccessibleValue",
.instance_size = sizeof (GtkTristateAccessibleValue),
.equal = gtk_tristate_accessible_value_equal,
.print = gtk_tristate_accessible_value_print,
};
static GtkTristateAccessibleValue tristate_values[] = {
[GTK_ACCESSIBLE_TRISTATE_FALSE] = {
GTK_ACCESSIBLE_VALUE_INIT (&GTK_TRISTATE_ACCESSIBLE_VALUE), GTK_ACCESSIBLE_TRISTATE_FALSE
},
[GTK_ACCESSIBLE_TRISTATE_TRUE] = {
GTK_ACCESSIBLE_VALUE_INIT (&GTK_TRISTATE_ACCESSIBLE_VALUE), GTK_ACCESSIBLE_TRISTATE_TRUE
},
[GTK_ACCESSIBLE_TRISTATE_MIXED] = {
GTK_ACCESSIBLE_VALUE_INIT (&GTK_TRISTATE_ACCESSIBLE_VALUE), GTK_ACCESSIBLE_TRISTATE_MIXED
},
};
GtkAccessibleValue *
gtk_tristate_accessible_value_new (GtkAccessibleTristate value)
{
g_return_val_if_fail (value >= GTK_ACCESSIBLE_TRISTATE_FALSE &&
value <= GTK_ACCESSIBLE_TRISTATE_MIXED, NULL);
return gtk_accessible_value_ref ((GtkAccessibleValue *) &tristate_values[value]);
}
GtkAccessibleTristate
gtk_tristate_accessible_value_get (const GtkAccessibleValue *value)
{
g_return_val_if_fail (value != NULL, GTK_ACCESSIBLE_TRISTATE_FALSE);
g_return_val_if_fail (value->value_class == &GTK_TRISTATE_ACCESSIBLE_VALUE,
GTK_ACCESSIBLE_TRISTATE_FALSE);
GtkTristateAccessibleValue *self = (GtkTristateAccessibleValue *) value;
return self->value;
}
/* }}} */
/* {{{ Enumeration values */
typedef struct {
GtkAccessibleValue parent;
int value;
const char *token;
} GtkTokenAccessibleValue;
static gboolean
gtk_token_accessible_value_equal (const GtkAccessibleValue *value_a,
const GtkAccessibleValue *value_b)
{
const GtkTokenAccessibleValue *self_a = (GtkTokenAccessibleValue *) value_a;
const GtkTokenAccessibleValue *self_b = (GtkTokenAccessibleValue *) value_b;
return self_a->value == self_b->value;
}
static void
gtk_token_accessible_value_print (const GtkAccessibleValue *value,
GString *buffer)
{
const GtkTokenAccessibleValue *self = (GtkTokenAccessibleValue *) value;
g_string_append (buffer, self->token);
}
static const GtkAccessibleValueClass GTK_INVALID_ACCESSIBLE_VALUE = {
.type = GTK_ACCESSIBLE_VALUE_TYPE_TOKEN,
.type_name = "GtkInvalidAccessibleValue",
.instance_size = sizeof (GtkTokenAccessibleValue),
.equal = gtk_token_accessible_value_equal,
.print = gtk_token_accessible_value_print,
};
static GtkTokenAccessibleValue invalid_values[] = {
[GTK_ACCESSIBLE_INVALID_FALSE] = {
GTK_ACCESSIBLE_VALUE_INIT (&GTK_INVALID_ACCESSIBLE_VALUE), GTK_ACCESSIBLE_INVALID_FALSE, "false"
},
[GTK_ACCESSIBLE_INVALID_TRUE] = {
GTK_ACCESSIBLE_VALUE_INIT (&GTK_INVALID_ACCESSIBLE_VALUE), GTK_ACCESSIBLE_INVALID_TRUE, "true"
},
[GTK_ACCESSIBLE_INVALID_GRAMMAR] = {
GTK_ACCESSIBLE_VALUE_INIT (&GTK_INVALID_ACCESSIBLE_VALUE), GTK_ACCESSIBLE_INVALID_GRAMMAR, "grammar"
},
[GTK_ACCESSIBLE_INVALID_SPELLING] = {
GTK_ACCESSIBLE_VALUE_INIT (&GTK_INVALID_ACCESSIBLE_VALUE), GTK_ACCESSIBLE_INVALID_SPELLING, "spelling"
},
};
GtkAccessibleValue *
gtk_invalid_accessible_value_new (GtkAccessibleInvalidState state)
{
g_return_val_if_fail (state >= GTK_ACCESSIBLE_INVALID_FALSE &&
state <= GTK_ACCESSIBLE_INVALID_SPELLING,
NULL);
return gtk_accessible_value_ref ((GtkAccessibleValue *) &invalid_values[state]);
}
GtkAccessibleInvalidState
gtk_invalid_accessible_value_get (const GtkAccessibleValue *value)
{
GtkTokenAccessibleValue *self = (GtkTokenAccessibleValue *) value;
g_return_val_if_fail (value != NULL, GTK_ACCESSIBLE_INVALID_FALSE);
g_return_val_if_fail (value->value_class == &GTK_INVALID_ACCESSIBLE_VALUE,
GTK_ACCESSIBLE_INVALID_FALSE);
return self->value;
}
static const GtkAccessibleValueClass GTK_AUTOCOMPLETE_ACCESSIBLE_VALUE = {
.type = GTK_ACCESSIBLE_VALUE_TYPE_TOKEN,
.type_name = "GtkAutocompleteAccessibleValue",
.instance_size = sizeof (GtkTokenAccessibleValue),
.equal = gtk_token_accessible_value_equal,
.print = gtk_token_accessible_value_print,
};
static GtkTokenAccessibleValue autocomplete_values[] = {
[GTK_ACCESSIBLE_AUTOCOMPLETE_NONE] = {
GTK_ACCESSIBLE_VALUE_INIT (&GTK_AUTOCOMPLETE_ACCESSIBLE_VALUE), GTK_ACCESSIBLE_AUTOCOMPLETE_NONE, "none"
},
[GTK_ACCESSIBLE_AUTOCOMPLETE_INLINE] = {
GTK_ACCESSIBLE_VALUE_INIT (&GTK_AUTOCOMPLETE_ACCESSIBLE_VALUE), GTK_ACCESSIBLE_AUTOCOMPLETE_INLINE, "inline"
},
[GTK_ACCESSIBLE_AUTOCOMPLETE_LIST] = {
GTK_ACCESSIBLE_VALUE_INIT (&GTK_AUTOCOMPLETE_ACCESSIBLE_VALUE), GTK_ACCESSIBLE_AUTOCOMPLETE_LIST, "list"
},
[GTK_ACCESSIBLE_AUTOCOMPLETE_BOTH] = {
GTK_ACCESSIBLE_VALUE_INIT (&GTK_AUTOCOMPLETE_ACCESSIBLE_VALUE), GTK_ACCESSIBLE_AUTOCOMPLETE_BOTH, "both"
},
};
GtkAccessibleValue *
gtk_autocomplete_accessible_value_new (GtkAccessibleAutocomplete value)
{
g_return_val_if_fail (value >= GTK_ACCESSIBLE_AUTOCOMPLETE_NONE &&
value <= GTK_ACCESSIBLE_AUTOCOMPLETE_BOTH,
NULL);
return gtk_accessible_value_ref ((GtkAccessibleValue *) &autocomplete_values[value]);
}
GtkAccessibleAutocomplete
gtk_autocomplete_accessible_value_get (const GtkAccessibleValue *value)
{
GtkTokenAccessibleValue *self = (GtkTokenAccessibleValue *) value;
g_return_val_if_fail (value != NULL, GTK_ACCESSIBLE_AUTOCOMPLETE_NONE);
g_return_val_if_fail (value->value_class == &GTK_AUTOCOMPLETE_ACCESSIBLE_VALUE,
GTK_ACCESSIBLE_AUTOCOMPLETE_NONE);
return self->value;
}
static const GtkAccessibleValueClass GTK_ORIENTATION_ACCESSIBLE_VALUE = {
.type = GTK_ACCESSIBLE_VALUE_TYPE_TOKEN,
.type_name = "GtkOrientationAccessibleValue",
.instance_size = sizeof (GtkTokenAccessibleValue),
.equal = gtk_token_accessible_value_equal,
.print = gtk_token_accessible_value_print,
};
static GtkTokenAccessibleValue orientation_values[] = {
[GTK_ORIENTATION_HORIZONTAL] = {
GTK_ACCESSIBLE_VALUE_INIT (&GTK_ORIENTATION_ACCESSIBLE_VALUE), GTK_ORIENTATION_HORIZONTAL, "horizontal"
},
[GTK_ORIENTATION_VERTICAL] = {
GTK_ACCESSIBLE_VALUE_INIT (&GTK_ORIENTATION_ACCESSIBLE_VALUE), GTK_ORIENTATION_VERTICAL, "vertical"
},
};
GtkAccessibleValue *
gtk_orientation_accessible_value_new (GtkOrientation value)
{
g_return_val_if_fail (value >= GTK_ORIENTATION_HORIZONTAL &&
value <= GTK_ORIENTATION_VERTICAL,
NULL);
return gtk_accessible_value_ref ((GtkAccessibleValue *) &orientation_values[value]);
}
GtkOrientation
gtk_orientation_accessible_value_get (const GtkAccessibleValue *value)
{
GtkTokenAccessibleValue *self = (GtkTokenAccessibleValue *) value;
g_return_val_if_fail (value != NULL, GTK_ACCESSIBLE_VALUE_UNDEFINED);
g_return_val_if_fail (value->value_class == &GTK_ORIENTATION_ACCESSIBLE_VALUE,
GTK_ACCESSIBLE_VALUE_UNDEFINED);
return self->value;
}
static const GtkAccessibleValueClass GTK_SORT_ACCESSIBLE_VALUE = {
.type = GTK_ACCESSIBLE_VALUE_TYPE_TOKEN,
.type_name = "GtkSortAccessibleValue",
.instance_size = sizeof (GtkTokenAccessibleValue),
.equal = gtk_token_accessible_value_equal,
.print = gtk_token_accessible_value_print,
};
static GtkTokenAccessibleValue sort_values[] = {
[GTK_ACCESSIBLE_SORT_NONE] = {
GTK_ACCESSIBLE_VALUE_INIT (&GTK_SORT_ACCESSIBLE_VALUE), GTK_ACCESSIBLE_SORT_NONE, "none"
},
[GTK_ACCESSIBLE_SORT_ASCENDING] = {
GTK_ACCESSIBLE_VALUE_INIT (&GTK_SORT_ACCESSIBLE_VALUE), GTK_ACCESSIBLE_SORT_ASCENDING, "ascending"
},
[GTK_ACCESSIBLE_SORT_DESCENDING] = {
GTK_ACCESSIBLE_VALUE_INIT (&GTK_SORT_ACCESSIBLE_VALUE), GTK_ACCESSIBLE_SORT_DESCENDING, "descending"
},
[GTK_ACCESSIBLE_SORT_OTHER] = {
GTK_ACCESSIBLE_VALUE_INIT (&GTK_SORT_ACCESSIBLE_VALUE), GTK_ACCESSIBLE_SORT_OTHER, "other"
},
};
GtkAccessibleValue *
gtk_sort_accessible_value_new (GtkAccessibleSort value)
{
g_return_val_if_fail (value >= GTK_ACCESSIBLE_SORT_NONE &&
value <= GTK_ACCESSIBLE_SORT_OTHER,
NULL);
return gtk_accessible_value_ref ((GtkAccessibleValue *) &sort_values[value]);
}
GtkAccessibleSort
gtk_sort_accessible_value_get (const GtkAccessibleValue *value)
{
GtkTokenAccessibleValue *self = (GtkTokenAccessibleValue *) value;
g_return_val_if_fail (value != NULL, GTK_ACCESSIBLE_SORT_NONE);
g_return_val_if_fail (value->value_class == &GTK_SORT_ACCESSIBLE_VALUE,
GTK_ACCESSIBLE_SORT_NONE);
return self->value;
}
/* }}} */