jean
/
Learning_GTK4_tree
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
Learning_GTK4_tree/gtk/gtkaccessiblevalue.c

1935 lines
58 KiB
C
Raw Permalink Normal View History

initial
2023-12-12 11:36:42 +01:00
/* gtkaccessiblevalue.c: Accessible value
*
* 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/>.
*/
/*< private >
* GtkAccessibleValue:
*
* GtkAccessibleValue is a reference counted, generic container for values used
* to represent the state and properties of a `GtkAccessible` implementation.
*
* There are two kinds of accessible value types:
*
* - hard coded, static values; GTK owns them, and their contents, and are
* guaranteed to exist for the duration of the application's life time
* - dynamic values; the accessible state owns the value and their contents,
* and they can be allocated and freed
*
* Typically, the former type of values is used for boolean, tristate, and
* token value; the latter is used for numbers, strings, and token lists.
*
* For more information on the types of values, see the [WAI-ARIA](https://www.w3.org/WAI/PF/aria/states_and_properties#propcharacteristic_value)
* reference.
*/
#include "config.h"
#include "gtkaccessiblevalueprivate.h"
#include "gtkaccessible.h"
#include "gtkbuilderprivate.h"
#include "gtkenums.h"
#include "gtktypebuiltins.h"
#include <math.h>
#include <float.h>
#include <errno.h>
G_DEFINE_QUARK (gtk-accessible-value-error-quark, gtk_accessible_value_error)
G_DEFINE_BOXED_TYPE (GtkAccessibleValue, gtk_accessible_value,
gtk_accessible_value_ref,
gtk_accessible_value_unref)
/*< private >
* gtk_accessible_value_alloc:
* @value_class: a `GtkAccessibleValueClass` structure
*
* Allocates a new `GtkAccessibleValue` subclass using @value_class as the
* type definition.
*
* Returns: (transfer full): the newly allocated `GtkAccessibleValue`
*/
GtkAccessibleValue *
gtk_accessible_value_alloc (const GtkAccessibleValueClass *value_class)
{
g_return_val_if_fail (value_class != NULL, NULL);
g_return_val_if_fail (value_class->instance_size >= sizeof (GtkAccessibleValue), NULL);
GtkAccessibleValue *res = g_malloc0 (value_class->instance_size);
/* We do not use grefcount, here, because we want to have statically
* allocated GtkAccessibleValue subclasses, and those cannot be initialized
* with g_ref_count_init()
*/
res->ref_count = 1;
res->value_class = value_class;
if (res->value_class->init != NULL)
res->value_class->init (res);
return res;
}
/*< private >
* gtk_accessible_value_ref:
* @self: a `GtkAccessibleValue`
*
* Acquires a reference on the given `GtkAccessibleValue`.
*
* Returns: (transfer full): the value, with an additional reference
*/
GtkAccessibleValue *
gtk_accessible_value_ref (GtkAccessibleValue *self)
{
g_return_val_if_fail (self != NULL, NULL);
self->ref_count += 1;
return self;
}
/*< private >
* gtk_accessible_value_unref:
* @self: (transfer full): a `GtkAccessibleValue`
*
* Releases a reference on the given `GtkAccessibleValue`.
*/
void
gtk_accessible_value_unref (GtkAccessibleValue *self)
{
g_return_if_fail (self != NULL);
self->ref_count -= 1;
if (self->ref_count == 0)
{
if (self->value_class->finalize != NULL)
self->value_class->finalize (self);
g_free (self);
}
}
/*< private >
* gtk_accessible_value_print:
* @self: a `GtkAccessibleValue`
* @buffer: a `GString`
*
* Prints the contents of a `GtkAccessibleValue` into the given @buffer.
*/
void
gtk_accessible_value_print (const GtkAccessibleValue *self,
GString *buffer)
{
g_return_if_fail (self != NULL);
g_return_if_fail (buffer != NULL);
if (self->value_class->print != NULL)
self->value_class->print (self, buffer);
}
/*< private >
* gtk_accessible_value_to_string:
* @self: a `GtkAccessibleValue`
*
* Fills a string with the contents of the given `GtkAccessibleValue`.
*
* Returns: (transfer full): a string with the contents of the value
*/
char *
gtk_accessible_value_to_string (const GtkAccessibleValue *self)
{
g_return_val_if_fail (self != NULL, NULL);
GString *buffer = g_string_new (NULL);
gtk_accessible_value_print (self, buffer);
return g_string_free (buffer, FALSE);
}
/*< private >
* gtk_accessible_value_equal:
* @value_a: (nullable): the first `GtkAccessibleValue`
* @value_b: (nullable): the second `GtkAccessibleValue`
*
* Checks whether @value_a and @value_b are equal.
*
* This function is %NULL-safe.
*
* Returns: %TRUE if the given `GtkAccessibleValue` instances are equal,
* and %FALSE otherwise
*/
gboolean
gtk_accessible_value_equal (const GtkAccessibleValue *value_a,
const GtkAccessibleValue *value_b)
{
if (value_a == value_b)
return TRUE;
if (value_a == NULL || value_b == NULL)
return FALSE;
if (value_a->value_class != value_b->value_class)
return FALSE;
if (value_a->value_class->equal == NULL)
return FALSE;
return value_a->value_class->equal (value_a, value_b);
}
/* {{{ Basic allocated types */
typedef struct {
GtkAccessibleValue parent;
int value;
} GtkIntAccessibleValue;
static gboolean
gtk_int_accessible_value_equal (const GtkAccessibleValue *value_a,
const GtkAccessibleValue *value_b)
{
const GtkIntAccessibleValue *self_a = (GtkIntAccessibleValue *) value_a;
const GtkIntAccessibleValue *self_b = (GtkIntAccessibleValue *) value_b;
return self_a->value == self_b->value;
}
static void
gtk_int_accessible_value_print (const GtkAccessibleValue *value,
GString *buffer)
{
const GtkIntAccessibleValue *self = (GtkIntAccessibleValue *) value;
g_string_append_printf (buffer, "%d", self->value);
}
static const GtkAccessibleValueClass GTK_INT_ACCESSIBLE_VALUE = {
.type = GTK_ACCESSIBLE_VALUE_TYPE_INTEGER,
.type_name = "GtkIntAccessibleValue",
.instance_size = sizeof (GtkIntAccessibleValue),
.equal = gtk_int_accessible_value_equal,
.print = gtk_int_accessible_value_print,
};
GtkAccessibleValue *
gtk_int_accessible_value_new (int value)
{
GtkAccessibleValue *res = gtk_accessible_value_alloc (&GTK_INT_ACCESSIBLE_VALUE);
/* XXX: Possible optimization: statically allocate the first N values
* and hand out references to them, instead of dynamically
* allocating a new GtkAccessibleValue instance. Needs some profiling
* to figure out the common integer values used by large applications
*/
GtkIntAccessibleValue *self = (GtkIntAccessibleValue *) res;
self->value = value;
return res;
}
int
gtk_int_accessible_value_get (const GtkAccessibleValue *value)
{
GtkIntAccessibleValue *self = (GtkIntAccessibleValue *) value;
g_return_val_if_fail (value != NULL, 0);
g_return_val_if_fail (value->value_class == &GTK_INT_ACCESSIBLE_VALUE, 0);
return self->value;
}
typedef struct {
GtkAccessibleValue parent;
double value;
} GtkNumberAccessibleValue;
static gboolean
gtk_number_accessible_value_equal (const GtkAccessibleValue *value_a,
const GtkAccessibleValue *value_b)
{
const GtkNumberAccessibleValue *self_a = (GtkNumberAccessibleValue *) value_a;
const GtkNumberAccessibleValue *self_b = (GtkNumberAccessibleValue *) value_b;
return G_APPROX_VALUE (self_a->value, self_b->value, 0.001);
}
static void
gtk_number_accessible_value_print (const GtkAccessibleValue *value,
GString *buffer)
{
const GtkNumberAccessibleValue *self = (GtkNumberAccessibleValue *) value;
g_string_append_printf (buffer, "%g", self->value);
}
static const GtkAccessibleValueClass GTK_NUMBER_ACCESSIBLE_VALUE = {
.type = GTK_ACCESSIBLE_VALUE_TYPE_NUMBER,
.type_name = "GtkNumberAccessibleValue",
.instance_size = sizeof (GtkNumberAccessibleValue),
.equal = gtk_number_accessible_value_equal,
.print = gtk_number_accessible_value_print,
};
GtkAccessibleValue *
gtk_number_accessible_value_new (double value)
{
GtkAccessibleValue *res = gtk_accessible_value_alloc (&GTK_NUMBER_ACCESSIBLE_VALUE);
GtkNumberAccessibleValue *self = (GtkNumberAccessibleValue *) res;
self->value = value;
return res;
}
double
gtk_number_accessible_value_get (const GtkAccessibleValue *value)
{
GtkNumberAccessibleValue *self = (GtkNumberAccessibleValue *) value;
g_return_val_if_fail (value != NULL, 0);
g_return_val_if_fail (value->value_class == &GTK_NUMBER_ACCESSIBLE_VALUE, 0);
return self->value;
}
typedef struct {
GtkAccessibleValue parent;
char *value;
gsize length;
} GtkStringAccessibleValue;
static void
gtk_string_accessible_value_finalize (GtkAccessibleValue *value)
{
GtkStringAccessibleValue *self = (GtkStringAccessibleValue *) value;
g_free (self->value);
}
static gboolean
gtk_string_accessible_value_equal (const GtkAccessibleValue *value_a,
const GtkAccessibleValue *value_b)
{
const GtkStringAccessibleValue *self_a = (GtkStringAccessibleValue *) value_a;
const GtkStringAccessibleValue *self_b = (GtkStringAccessibleValue *) value_b;
if (self_a->length != self_b->length)
return FALSE;
return g_strcmp0 (self_a->value, self_b->value) == 0;
}
static void
gtk_string_accessible_value_print (const GtkAccessibleValue *value,
GString *buffer)
{
const GtkStringAccessibleValue *self = (GtkStringAccessibleValue *) value;
g_string_append (buffer, self->value);
}
static const GtkAccessibleValueClass GTK_STRING_ACCESSIBLE_VALUE = {
.type = GTK_ACCESSIBLE_VALUE_TYPE_STRING,
.type_name = "GtkStringAccessibleValue",
.instance_size = sizeof (GtkStringAccessibleValue),
.finalize = gtk_string_accessible_value_finalize,
.equal = gtk_string_accessible_value_equal,
.print = gtk_string_accessible_value_print,
};
GtkAccessibleValue *
gtk_string_accessible_value_new (const char *str)
{
GtkAccessibleValue *res = gtk_accessible_value_alloc (&GTK_STRING_ACCESSIBLE_VALUE);
GtkStringAccessibleValue *self = (GtkStringAccessibleValue *) res;
self->value = g_strdup (str);
self->length = strlen (str);
return res;
}
const char *
gtk_string_accessible_value_get (const GtkAccessibleValue *value)
{
GtkStringAccessibleValue *self = (GtkStringAccessibleValue *) value;
g_return_val_if_fail (value != NULL, 0);
g_return_val_if_fail (value->value_class == &GTK_STRING_ACCESSIBLE_VALUE, 0);
return self->value;
}
typedef struct {
GtkAccessibleValue parent;
GtkAccessible *ref;
} GtkReferenceAccessibleValue;
static void
remove_weak_ref (gpointer data,
GObject *old_reference)
{
GtkReferenceAccessibleValue *self = data;
self->ref = NULL;
}
static void
gtk_reference_accessible_value_finalize (GtkAccessibleValue *value)
{
GtkReferenceAccessibleValue *self = (GtkReferenceAccessibleValue *) value;
if (self->ref != NULL)
g_object_weak_unref (G_OBJECT (self->ref), remove_weak_ref, self);
}
static gboolean
gtk_reference_accessible_value_equal (const GtkAccessibleValue *value_a,
const GtkAccessibleValue *value_b)
{
const GtkReferenceAccessibleValue *self_a = (GtkReferenceAccessibleValue *) value_a;
const GtkReferenceAccessibleValue *self_b = (GtkReferenceAccessibleValue *) value_b;
return self_a->ref == self_b->ref;
}
static void
gtk_reference_accessible_value_print (const GtkAccessibleValue *value,
GString *buffer)
{
const GtkReferenceAccessibleValue *self = (GtkReferenceAccessibleValue *) value;
if (self->ref != NULL)
{
g_string_append_printf (buffer, "%s<%p>",
G_OBJECT_TYPE_NAME (self->ref),
self->ref);
}
else
{
g_string_append (buffer, "<null>");
}
}
static const GtkAccessibleValueClass GTK_REFERENCE_ACCESSIBLE_VALUE = {
.type = GTK_ACCESSIBLE_VALUE_TYPE_REFERENCE,
.type_name = "GtkReferenceAccessibleValue",
.instance_size = sizeof (GtkReferenceAccessibleValue),
.finalize = gtk_reference_accessible_value_finalize,
.equal = gtk_reference_accessible_value_equal,
.print = gtk_reference_accessible_value_print,
};
GtkAccessibleValue *
gtk_reference_accessible_value_new (GtkAccessible *ref)
{
g_return_val_if_fail (GTK_IS_ACCESSIBLE (ref), NULL);
GtkAccessibleValue *res = gtk_accessible_value_alloc (&GTK_REFERENCE_ACCESSIBLE_VALUE);
GtkReferenceAccessibleValue *self = (GtkReferenceAccessibleValue *) res;
self->ref = ref;
g_object_weak_ref (G_OBJECT (self->ref), remove_weak_ref, self);
return res;
}
GtkAccessible *
gtk_reference_accessible_value_get (const GtkAccessibleValue *value)
{
GtkReferenceAccessibleValue *self = (GtkReferenceAccessibleValue *) value;
g_return_val_if_fail (value != NULL, 0);
g_return_val_if_fail (value->value_class == &GTK_REFERENCE_ACCESSIBLE_VALUE, 0);
return self->ref;
}
typedef struct {
GtkAccessibleValue parent;
GList *refs;
} GtkReferenceListAccessibleValue;
static void
remove_weak_ref_from_list (gpointer data,
GObject *old_reference)
{
GtkReferenceListAccessibleValue *self = data;
GList *item = g_list_find (self->refs, old_reference);
if (item != NULL)
{
self->refs = g_list_remove_link (self->refs, item);
g_list_free (item);
}
}
static void
gtk_reference_list_accessible_value_finalize (GtkAccessibleValue *value)
{
GtkReferenceListAccessibleValue *self = (GtkReferenceListAccessibleValue *) value;
for (GList *l = self->refs; l != NULL; l = l->next)
{
if (l->data != NULL)
g_object_weak_unref (G_OBJECT (l->data), remove_weak_ref_from_list, self);
}
g_list_free (self->refs);
}
static gboolean
gtk_reference_list_accessible_value_equal (const GtkAccessibleValue *value_a,
const GtkAccessibleValue *value_b)
{
const GtkReferenceListAccessibleValue *self_a = (GtkReferenceListAccessibleValue *) value_a;
const GtkReferenceListAccessibleValue *self_b = (GtkReferenceListAccessibleValue *) value_b;
if (g_list_length (self_a->refs) != g_list_length (self_b->refs))
return FALSE;
for (GList *l = self_a->refs; l != NULL; l = l->next)
{
if (g_list_find (self_b->refs, l->data) == NULL)
return FALSE;
}
return TRUE;
}
static void
gtk_reference_list_accessible_value_print (const GtkAccessibleValue *value,
GString *buffer)
{
const GtkReferenceListAccessibleValue *self = (GtkReferenceListAccessibleValue *) value;
if (self->refs == NULL)
{
g_string_append (buffer, "<null>");
return;
}
for (GList *l = self->refs; l != NULL; l = l->next)
{
g_string_append_printf (buffer, "%s<%p>",
G_OBJECT_TYPE_NAME (l->data),
l->data);
}
}
static const GtkAccessibleValueClass GTK_REFERENCE_LIST_ACCESSIBLE_VALUE = {
.type = GTK_ACCESSIBLE_VALUE_TYPE_REFERENCE_LIST,
.type_name = "GtkReferenceListAccessibleValue",
.instance_size = sizeof (GtkReferenceListAccessibleValue),
.finalize = gtk_reference_list_accessible_value_finalize,
.equal = gtk_reference_list_accessible_value_equal,
.print = gtk_reference_list_accessible_value_print,
};
/*< private >
* gtk_reference_list_accessible_value_new:
* @value: (element-type GtkAccessible) (transfer full): a list of accessible objects
*
* Creates a new `GtkAccessible` that stores a list of references
* to `GtkAccessible` objects.
*
* Returns: (transfer full): the newly created `GtkAccessible`
*/
GtkAccessibleValue *
gtk_reference_list_accessible_value_new (GList *value)
{
GtkAccessibleValue *res = gtk_accessible_value_alloc (&GTK_REFERENCE_LIST_ACCESSIBLE_VALUE);
GtkReferenceListAccessibleValue *self = (GtkReferenceListAccessibleValue *) res;
self->refs = value;
if (self->refs != NULL)
{
for (GList *l = self->refs; l != NULL; l = l->next)
g_object_weak_ref (l->data, remove_weak_ref_from_list, self);
}
return res;
}
GList *
gtk_reference_list_accessible_value_get (const GtkAccessibleValue *value)
{
GtkReferenceListAccessibleValue *self = (GtkReferenceListAccessibleValue *) value;
g_return_val_if_fail (value != NULL, 0);
g_return_val_if_fail (value->value_class == &GTK_REFERENCE_LIST_ACCESSIBLE_VALUE, 0);
return self->refs;
}
/* }}} */
/* {{{ Collection API */
typedef enum {
GTK_ACCESSIBLE_COLLECT_INVALID = -1,
/* true/false */
GTK_ACCESSIBLE_COLLECT_BOOLEAN = 0,
/* true/false/mixed/undefined */
GTK_ACCESSIBLE_COLLECT_TRISTATE,
/* one token */
GTK_ACCESSIBLE_COLLECT_TOKEN,
/* integer number */
GTK_ACCESSIBLE_COLLECT_INTEGER,
/* real number */
GTK_ACCESSIBLE_COLLECT_NUMBER,
/* string */
GTK_ACCESSIBLE_COLLECT_STRING,
/* reference */
GTK_ACCESSIBLE_COLLECT_REFERENCE,
/* references list */
GTK_ACCESSIBLE_COLLECT_REFERENCE_LIST,
/* allows collecting GTK_ACCESSIBLE_VALUE_UNDEFINED; implied
* by GTK_ACCESSIBLE_COLLECT_TRISTATE
*/
GTK_ACCESSIBLE_COLLECT_UNDEFINED = 1 << 16
} GtkAccessibleCollectType;
typedef struct {
int value;
GtkAccessibleCollectType ctype;
const char *name;
/* The constructor and getter will be derived by the
* @ctype field and by the collected value, except for the
* GTK_ACCESSIBLE_COLLECT_TOKEN collection type. You can
* override the default ones by filling out these two
* pointers
*/
GCallback ctor;
GCallback getter;
GCallback parser;
GCallback init_value;
} GtkAccessibleCollect;
static const GtkAccessibleCollect collect_states[] = {
[GTK_ACCESSIBLE_STATE_BUSY] = {
.value = GTK_ACCESSIBLE_STATE_BUSY,
.ctype = GTK_ACCESSIBLE_COLLECT_BOOLEAN,
.name = "busy"
},
[GTK_ACCESSIBLE_STATE_CHECKED] = {
.value = GTK_ACCESSIBLE_STATE_CHECKED,
.ctype = GTK_ACCESSIBLE_COLLECT_TRISTATE,
.name = "checked"
},
[GTK_ACCESSIBLE_STATE_DISABLED] = {
.value = GTK_ACCESSIBLE_STATE_DISABLED,
.ctype = GTK_ACCESSIBLE_COLLECT_BOOLEAN,
.name = "disabled"
},
[GTK_ACCESSIBLE_STATE_EXPANDED] = {
.value = GTK_ACCESSIBLE_STATE_EXPANDED,
.ctype = GTK_ACCESSIBLE_COLLECT_BOOLEAN | GTK_ACCESSIBLE_COLLECT_UNDEFINED,
.name = "expanded"
},
[GTK_ACCESSIBLE_STATE_HIDDEN] = {
.value = GTK_ACCESSIBLE_STATE_HIDDEN,
.ctype = GTK_ACCESSIBLE_COLLECT_BOOLEAN,
.name = "hidden"
},
[GTK_ACCESSIBLE_STATE_INVALID] = {
.value = GTK_ACCESSIBLE_STATE_INVALID,
.ctype = GTK_ACCESSIBLE_COLLECT_TOKEN,
.name = "invalid",
.ctor = (GCallback) gtk_invalid_accessible_value_new,
.getter = (GCallback) gtk_invalid_accessible_value_get,
.parser = (GCallback) gtk_invalid_accessible_value_parse,
.init_value = (GCallback) gtk_invalid_accessible_value_init_value,
},
[GTK_ACCESSIBLE_STATE_PRESSED] = {
.value = GTK_ACCESSIBLE_STATE_PRESSED,
.ctype = GTK_ACCESSIBLE_COLLECT_TRISTATE,
.name = "pressed"
},
[GTK_ACCESSIBLE_STATE_SELECTED] = {
.value = GTK_ACCESSIBLE_STATE_SELECTED,
.ctype = GTK_ACCESSIBLE_COLLECT_BOOLEAN | GTK_ACCESSIBLE_COLLECT_UNDEFINED,
.name = "selected"
},
[GTK_ACCESSIBLE_STATE_VISITED] = {
.value = GTK_ACCESSIBLE_STATE_VISITED,
.ctype = GTK_ACCESSIBLE_COLLECT_BOOLEAN|GTK_ACCESSIBLE_COLLECT_UNDEFINED,
.name = "visited"
}
};
/* § 6.6.1 Widget attributes */
static const GtkAccessibleCollect collect_props[] = {
[GTK_ACCESSIBLE_PROPERTY_AUTOCOMPLETE] = {
.value = GTK_ACCESSIBLE_PROPERTY_AUTOCOMPLETE,
.ctype = GTK_ACCESSIBLE_COLLECT_TOKEN,
.name = "autocomplete",
.ctor = (GCallback) gtk_autocomplete_accessible_value_new,
.getter = (GCallback) gtk_autocomplete_accessible_value_get,
.parser = (GCallback) gtk_autocomplete_accessible_value_parse,
.init_value = (GCallback) gtk_autocomplete_accessible_value_init_value,
},
[GTK_ACCESSIBLE_PROPERTY_DESCRIPTION] = {
.value = GTK_ACCESSIBLE_PROPERTY_DESCRIPTION,
.ctype = GTK_ACCESSIBLE_COLLECT_STRING,
.name = "description"
},
[GTK_ACCESSIBLE_PROPERTY_HAS_POPUP] = {
.value = GTK_ACCESSIBLE_PROPERTY_HAS_POPUP,
.ctype = GTK_ACCESSIBLE_COLLECT_BOOLEAN,
.name = "haspopup"
},
[GTK_ACCESSIBLE_PROPERTY_KEY_SHORTCUTS] = {
.value = GTK_ACCESSIBLE_PROPERTY_KEY_SHORTCUTS,
.ctype = GTK_ACCESSIBLE_COLLECT_STRING,
.name = "keyshortcuts"
},
[GTK_ACCESSIBLE_PROPERTY_LABEL] = {
.value = GTK_ACCESSIBLE_PROPERTY_LABEL,
.ctype = GTK_ACCESSIBLE_COLLECT_STRING,
.name = "label"
},
[GTK_ACCESSIBLE_PROPERTY_LEVEL] = {
.value = GTK_ACCESSIBLE_PROPERTY_LEVEL,
.ctype = GTK_ACCESSIBLE_COLLECT_INTEGER,
.name = "level"
},
[GTK_ACCESSIBLE_PROPERTY_MODAL] = {
.value = GTK_ACCESSIBLE_PROPERTY_MODAL,
.ctype = GTK_ACCESSIBLE_COLLECT_BOOLEAN,
.name = "modal"
},
[GTK_ACCESSIBLE_PROPERTY_MULTI_LINE] = {
.value = GTK_ACCESSIBLE_PROPERTY_MULTI_LINE,
.ctype = GTK_ACCESSIBLE_COLLECT_BOOLEAN,
.name = "multiline"
},
[GTK_ACCESSIBLE_PROPERTY_MULTI_SELECTABLE] = {
.value = GTK_ACCESSIBLE_PROPERTY_MULTI_SELECTABLE,
.ctype = GTK_ACCESSIBLE_COLLECT_BOOLEAN,
.name = "multiselectable"
},
/* "orientation" is a bit special; it maps to GtkOrientation, but it
* can also be "undefined". This means we need to override constructor
* and getter, in order to properly handle GTK_ACCESSIBLE_VALUE_UNDEFINED
*/
[GTK_ACCESSIBLE_PROPERTY_ORIENTATION] = {
.value = GTK_ACCESSIBLE_PROPERTY_ORIENTATION,
.ctype = GTK_ACCESSIBLE_COLLECT_TOKEN | GTK_ACCESSIBLE_COLLECT_UNDEFINED,
.name = "orientation",
.ctor = (GCallback) gtk_orientation_accessible_value_new,
.getter = (GCallback) gtk_orientation_accessible_value_get,
.parser = (GCallback) gtk_orientation_accessible_value_parse,
.init_value = (GCallback) gtk_orientation_accessible_value_init_value,
},
[GTK_ACCESSIBLE_PROPERTY_PLACEHOLDER] = {
.value = GTK_ACCESSIBLE_PROPERTY_PLACEHOLDER,
.ctype = GTK_ACCESSIBLE_COLLECT_STRING,
.name = "placeholder"
},
[GTK_ACCESSIBLE_PROPERTY_READ_ONLY] = {
.value = GTK_ACCESSIBLE_PROPERTY_READ_ONLY,
.ctype = GTK_ACCESSIBLE_COLLECT_BOOLEAN,
.name = "readonly"
},
[GTK_ACCESSIBLE_PROPERTY_REQUIRED] = {
.value = GTK_ACCESSIBLE_PROPERTY_REQUIRED,
.ctype = GTK_ACCESSIBLE_COLLECT_BOOLEAN,
.name = "required"
},
[GTK_ACCESSIBLE_PROPERTY_ROLE_DESCRIPTION] = {
.value = GTK_ACCESSIBLE_PROPERTY_ROLE_DESCRIPTION,
.ctype = GTK_ACCESSIBLE_COLLECT_STRING,
.name = "roledescription"
},
[GTK_ACCESSIBLE_PROPERTY_SORT] = {
.value = GTK_ACCESSIBLE_PROPERTY_SORT,
.ctype = GTK_ACCESSIBLE_COLLECT_TOKEN,
.name = "sort",
.ctor = (GCallback) gtk_sort_accessible_value_new,
.getter = (GCallback) gtk_sort_accessible_value_get,
.parser = (GCallback) gtk_sort_accessible_value_parse,
.init_value = (GCallback) gtk_sort_accessible_value_init_value,
},
[GTK_ACCESSIBLE_PROPERTY_VALUE_MAX] = {
.value = GTK_ACCESSIBLE_PROPERTY_VALUE_MAX,
.ctype = GTK_ACCESSIBLE_COLLECT_NUMBER,
.name = "valuemax"
},
[GTK_ACCESSIBLE_PROPERTY_VALUE_MIN] = {
.value = GTK_ACCESSIBLE_PROPERTY_VALUE_MIN,
.ctype = GTK_ACCESSIBLE_COLLECT_NUMBER,
.name = "valuemin"
},
[GTK_ACCESSIBLE_PROPERTY_VALUE_NOW] = {
.value = GTK_ACCESSIBLE_PROPERTY_VALUE_NOW,
.ctype = GTK_ACCESSIBLE_COLLECT_NUMBER,
.name = "valuenow"
},
[GTK_ACCESSIBLE_PROPERTY_VALUE_TEXT] = {
.value = GTK_ACCESSIBLE_PROPERTY_VALUE_TEXT,
.ctype = GTK_ACCESSIBLE_COLLECT_STRING,
.name = "valuetext"
},
};
/* § 6.6.4 Relationship Attributes */
static const GtkAccessibleCollect collect_rels[] = {
[GTK_ACCESSIBLE_RELATION_ACTIVE_DESCENDANT] = {
.value = GTK_ACCESSIBLE_RELATION_ACTIVE_DESCENDANT,
.ctype = GTK_ACCESSIBLE_COLLECT_REFERENCE,
.name = "activedescendant"
},
[GTK_ACCESSIBLE_RELATION_COL_COUNT] = {
.value = GTK_ACCESSIBLE_RELATION_COL_COUNT,
.ctype = GTK_ACCESSIBLE_COLLECT_INTEGER,
.name = "colcount"
},
[GTK_ACCESSIBLE_RELATION_COL_INDEX] = {
.value = GTK_ACCESSIBLE_RELATION_COL_INDEX,
.ctype = GTK_ACCESSIBLE_COLLECT_INTEGER,
.name = "colindex"
},
[GTK_ACCESSIBLE_RELATION_COL_INDEX_TEXT] = {
.value = GTK_ACCESSIBLE_RELATION_COL_INDEX_TEXT,
.ctype = GTK_ACCESSIBLE_COLLECT_STRING,
.name = "colindextext"
},
[GTK_ACCESSIBLE_RELATION_COL_SPAN] = {
.value = GTK_ACCESSIBLE_RELATION_COL_SPAN,
.ctype = GTK_ACCESSIBLE_COLLECT_INTEGER,
.name = "colspan"
},
[GTK_ACCESSIBLE_RELATION_CONTROLS] = {
.value = GTK_ACCESSIBLE_RELATION_CONTROLS,
.ctype = GTK_ACCESSIBLE_COLLECT_REFERENCE_LIST,
.name = "controls"
},
[GTK_ACCESSIBLE_RELATION_DESCRIBED_BY] = {
.value = GTK_ACCESSIBLE_RELATION_DESCRIBED_BY,
.ctype = GTK_ACCESSIBLE_COLLECT_REFERENCE_LIST,
.name = "describedby"
},
[GTK_ACCESSIBLE_RELATION_DETAILS] = {
.value = GTK_ACCESSIBLE_RELATION_DETAILS,
.ctype = GTK_ACCESSIBLE_COLLECT_REFERENCE_LIST,
.name = "details"
},
[GTK_ACCESSIBLE_RELATION_ERROR_MESSAGE] = {
.value = GTK_ACCESSIBLE_RELATION_ERROR_MESSAGE,
.ctype = GTK_ACCESSIBLE_COLLECT_REFERENCE,
.name = "errormessage"
},
[GTK_ACCESSIBLE_RELATION_FLOW_TO] = {
.value = GTK_ACCESSIBLE_RELATION_FLOW_TO,
.ctype = GTK_ACCESSIBLE_COLLECT_REFERENCE_LIST,
.name = "flowto"
},
[GTK_ACCESSIBLE_RELATION_LABELLED_BY] = {
.value = GTK_ACCESSIBLE_RELATION_LABELLED_BY,
.ctype = GTK_ACCESSIBLE_COLLECT_REFERENCE_LIST,
.name = "labelledby"
},
[GTK_ACCESSIBLE_RELATION_OWNS] = {
.value = GTK_ACCESSIBLE_RELATION_OWNS,
.ctype = GTK_ACCESSIBLE_COLLECT_REFERENCE_LIST,
.name = "owns"
},
[GTK_ACCESSIBLE_RELATION_POS_IN_SET] = {
.value = GTK_ACCESSIBLE_RELATION_POS_IN_SET,
.ctype = GTK_ACCESSIBLE_COLLECT_INTEGER,
.name = "posinset"
},
[GTK_ACCESSIBLE_RELATION_ROW_COUNT] = {
.value = GTK_ACCESSIBLE_RELATION_ROW_COUNT,
.ctype = GTK_ACCESSIBLE_COLLECT_INTEGER,
.name = "rowcount"
},
[GTK_ACCESSIBLE_RELATION_ROW_INDEX] = {
.value = GTK_ACCESSIBLE_RELATION_ROW_INDEX,
.ctype = GTK_ACCESSIBLE_COLLECT_INTEGER,
.name = "rowindex"
},
[GTK_ACCESSIBLE_RELATION_ROW_INDEX_TEXT] = {
.value = GTK_ACCESSIBLE_RELATION_ROW_INDEX_TEXT,
.ctype = GTK_ACCESSIBLE_COLLECT_STRING,
.name = "rowindextext"
},
[GTK_ACCESSIBLE_RELATION_ROW_SPAN] = {
.value = GTK_ACCESSIBLE_RELATION_ROW_SPAN,
.ctype = GTK_ACCESSIBLE_COLLECT_INTEGER,
.name = "rowspan"
},
[GTK_ACCESSIBLE_RELATION_SET_SIZE] = {
.value = GTK_ACCESSIBLE_RELATION_SET_SIZE,
.ctype = GTK_ACCESSIBLE_COLLECT_INTEGER,
.name = "posinset"
},
};
typedef GtkAccessibleValue * (* GtkAccessibleValueBooleanCtor) (gboolean value);
typedef GtkAccessibleValue * (* GtkAccessibleValueIntCtor) (int value);
typedef GtkAccessibleValue * (* GtkAccessibleValueTristateCtor) (int value);
typedef GtkAccessibleValue * (* GtkAccessibleValueEnumCtor) (int value);
typedef GtkAccessibleValue * (* GtkAccessibleValueNumberCtor) (double value);
typedef GtkAccessibleValue * (* GtkAccessibleValueStringCtor) (const char *value);
typedef GtkAccessibleValue * (* GtkAccessibleValueRefCtor) (GtkAccessible *value);
typedef GtkAccessibleValue * (* GtkAccessibleValueRefListCtor) (GList *value);
typedef GtkAccessibleValue * (* GtkAccessibleValueEnumParser) (const char *str,
gsize len,
GError **error);
typedef void (* GtkAccessibleValueEnumInit) (GValue *value);
/*< private >
* gtk_accessible_value_get_default_for_state:
* @state: a `GtkAccessibleState`
*
* Retrieves the `GtkAccessibleValue` that contains the default for the
* given @state.
*
* Returns: (transfer full): the `GtkAccessibleValue`
*/
GtkAccessibleValue *
gtk_accessible_value_get_default_for_state (GtkAccessibleState state)
{
const GtkAccessibleCollect *cstate = &collect_states[state];
g_return_val_if_fail (state <= GTK_ACCESSIBLE_STATE_VISITED, NULL);
switch (cstate->value)
{
case GTK_ACCESSIBLE_STATE_BUSY:
case GTK_ACCESSIBLE_STATE_DISABLED:
case GTK_ACCESSIBLE_STATE_HIDDEN:
return gtk_boolean_accessible_value_new (FALSE);
case GTK_ACCESSIBLE_STATE_CHECKED:
case GTK_ACCESSIBLE_STATE_EXPANDED:
case GTK_ACCESSIBLE_STATE_PRESSED:
case GTK_ACCESSIBLE_STATE_SELECTED:
case GTK_ACCESSIBLE_STATE_VISITED:
return gtk_undefined_accessible_value_new ();
case GTK_ACCESSIBLE_STATE_INVALID:
return gtk_invalid_accessible_value_new (GTK_ACCESSIBLE_INVALID_FALSE);
default:
g_critical ("Unknown value for accessible state “%s”", cstate->name);
break;
}
return NULL;
}
static GtkAccessibleValue *
gtk_accessible_value_collect_valist (const GtkAccessibleCollect *cstate,
GError **error,
va_list *args)
{
GtkAccessibleValue *res = NULL;
GtkAccessibleCollectType ctype = cstate->ctype;
gboolean collects_undef = (ctype & GTK_ACCESSIBLE_COLLECT_UNDEFINED) != 0;
ctype &= (GTK_ACCESSIBLE_COLLECT_UNDEFINED - 1);
/* Tristate values include "undefined" by definition */
if (ctype == GTK_ACCESSIBLE_COLLECT_TRISTATE)
collects_undef = TRUE;
switch (ctype)
{
case GTK_ACCESSIBLE_COLLECT_BOOLEAN:
{
if (collects_undef)
{
int value = va_arg (*args, int);
if (value == GTK_ACCESSIBLE_VALUE_UNDEFINED)
res = gtk_undefined_accessible_value_new ();
else
res = gtk_boolean_accessible_value_new (value == 0 ? FALSE : TRUE);
}
else
{
gboolean value = va_arg (*args, gboolean);
res = gtk_boolean_accessible_value_new (value);
}
}
break;
case GTK_ACCESSIBLE_COLLECT_TRISTATE:
{
int value = va_arg (*args, int);
if (collects_undef && value == GTK_ACCESSIBLE_VALUE_UNDEFINED)
res = gtk_undefined_accessible_value_new ();
else
res = gtk_tristate_accessible_value_new (value);
}
break;
case GTK_ACCESSIBLE_COLLECT_TOKEN:
{
GtkAccessibleValueEnumCtor ctor =
(GtkAccessibleValueEnumCtor) cstate->ctor;
int value = va_arg (*args, int);
if (collects_undef && value == GTK_ACCESSIBLE_VALUE_UNDEFINED)
{
res = gtk_undefined_accessible_value_new ();
}
else
{
/* Token collection requires a constructor */
g_assert (ctor != NULL);
res = (* ctor) (value);
}
if (res == NULL)
{
g_set_error (error, GTK_ACCESSIBLE_VALUE_ERROR,
GTK_ACCESSIBLE_VALUE_ERROR_INVALID_TOKEN,
"Invalid value for token attribute: %d",
value);
}
}
break;
case GTK_ACCESSIBLE_COLLECT_INTEGER:
{
GtkAccessibleValueEnumCtor ctor =
(GtkAccessibleValueEnumCtor) cstate->ctor;
int value = va_arg (*args, int);
if (ctor == NULL)
res = gtk_int_accessible_value_new (value);
else
res = (* ctor) (value);
}
break;
case GTK_ACCESSIBLE_COLLECT_NUMBER:
{
GtkAccessibleValueNumberCtor ctor =
(GtkAccessibleValueNumberCtor) cstate->ctor;
double value = va_arg (*args, double);
if (isnan (value) || isinf (value))
{
g_set_error_literal (error, GTK_ACCESSIBLE_VALUE_ERROR,
GTK_ACCESSIBLE_VALUE_ERROR_INVALID_VALUE,
"Invalid numeric value");
return NULL;
}
if (ctor == NULL)
res = gtk_number_accessible_value_new (value);
else
res = (* ctor) (value);
}
break;
case GTK_ACCESSIBLE_COLLECT_STRING:
{
GtkAccessibleValueStringCtor ctor =
(GtkAccessibleValueStringCtor) cstate->ctor;
const char *value = va_arg (*args, char*);
if (ctor == NULL)
{
if (value != NULL)
res = gtk_string_accessible_value_new (value);
}
else
{
res = (* ctor) (value);
}
}
break;
case GTK_ACCESSIBLE_COLLECT_REFERENCE:
{
GtkAccessibleValueRefCtor ctor =
(GtkAccessibleValueRefCtor) cstate->ctor;
gpointer value = va_arg (*args, gpointer);
if (value != NULL && !GTK_IS_ACCESSIBLE (value))
{
g_set_error_literal (error, GTK_ACCESSIBLE_VALUE_ERROR,
GTK_ACCESSIBLE_VALUE_ERROR_INVALID_VALUE,
"Reference does not implement GtkAccessible");
return NULL;
}
if (ctor == NULL)
{
if (value != NULL)
res = gtk_reference_accessible_value_new (value);
else
res = gtk_undefined_accessible_value_new ();
}
else
{
res = (* ctor) (value);
}
}
break;
case GTK_ACCESSIBLE_COLLECT_REFERENCE_LIST:
{
GtkAccessibleValueRefListCtor ctor =
(GtkAccessibleValueRefListCtor) cstate->ctor;
GtkAccessible *ref = va_arg (*args, gpointer);
GList *value = NULL;
while (ref != NULL)
{
if (!GTK_IS_ACCESSIBLE (ref))
{
g_set_error (error, GTK_ACCESSIBLE_VALUE_ERROR,
GTK_ACCESSIBLE_VALUE_ERROR_INVALID_VALUE,
"Reference of type “%s” [%p] does not implement GtkAccessible",
G_OBJECT_TYPE_NAME (ref), ref);
return NULL;
}
value = g_list_prepend (value, ref);
ref = va_arg (*args, gpointer);
}
if (value == NULL)
res = gtk_undefined_accessible_value_new ();
else
{
value = g_list_reverse (value);
if (ctor == NULL)
res = gtk_reference_list_accessible_value_new (value);
else
res = (* ctor) (value);
}
}
break;
case GTK_ACCESSIBLE_COLLECT_UNDEFINED:
case GTK_ACCESSIBLE_COLLECT_INVALID:
default:
g_assert_not_reached ();
break;
}
return res;
}
static GtkAccessibleValue *
gtk_accessible_value_collect_value (const GtkAccessibleCollect *cstate,
const GValue *value_,
GError **error)
{
GtkAccessibleValue *res = NULL;
GtkAccessibleCollectType ctype = cstate->ctype;
gboolean collects_undef = (ctype & GTK_ACCESSIBLE_COLLECT_UNDEFINED) != 0;
ctype &= (GTK_ACCESSIBLE_COLLECT_UNDEFINED - 1);
/* Tristate values include "undefined" by definition */
if (ctype == GTK_ACCESSIBLE_COLLECT_TRISTATE)
collects_undef = TRUE;
switch (ctype)
{
case GTK_ACCESSIBLE_COLLECT_BOOLEAN:
{
if (collects_undef)
{
int value = g_value_get_int (value_);
if (value == GTK_ACCESSIBLE_VALUE_UNDEFINED)
res = gtk_undefined_accessible_value_new ();
else
res = gtk_boolean_accessible_value_new (value == 0 ? FALSE : TRUE);
}
else
{
gboolean value = g_value_get_boolean (value_);
res = gtk_boolean_accessible_value_new (value);
}
}
break;
case GTK_ACCESSIBLE_COLLECT_TRISTATE:
{
int value = g_value_get_int (value_);
if (collects_undef && value == GTK_ACCESSIBLE_VALUE_UNDEFINED)
res = gtk_undefined_accessible_value_new ();
else
res = gtk_tristate_accessible_value_new (value);
}
break;
case GTK_ACCESSIBLE_COLLECT_TOKEN:
{
GtkAccessibleValueEnumCtor ctor =
(GtkAccessibleValueEnumCtor) cstate->ctor;
int value = g_value_get_int (value_);
if (collects_undef && value == GTK_ACCESSIBLE_VALUE_UNDEFINED)
{
res = gtk_undefined_accessible_value_new ();
}
else
{
/* Token collection requires a constructor */
g_assert (ctor != NULL);
res = (* ctor) (value);
}
if (res == NULL)
{
g_set_error (error, GTK_ACCESSIBLE_VALUE_ERROR,
GTK_ACCESSIBLE_VALUE_ERROR_INVALID_TOKEN,
"Invalid value for token attribute: %d",
value);
}
}
break;
case GTK_ACCESSIBLE_COLLECT_INTEGER:
{
GtkAccessibleValueEnumCtor ctor =
(GtkAccessibleValueEnumCtor) cstate->ctor;
int value = g_value_get_int (value_);
if (ctor == NULL)
res = gtk_int_accessible_value_new (value);
else
res = (* ctor) (value);
}
break;
case GTK_ACCESSIBLE_COLLECT_NUMBER:
{
GtkAccessibleValueNumberCtor ctor =
(GtkAccessibleValueNumberCtor) cstate->ctor;
double value = g_value_get_double (value_);
if (isnan (value) || isinf (value))
{
g_set_error_literal (error, GTK_ACCESSIBLE_VALUE_ERROR,
GTK_ACCESSIBLE_VALUE_ERROR_INVALID_VALUE,
"Invalid numeric value");
return NULL;
}
if (ctor == NULL)
res = gtk_number_accessible_value_new (value);
else
res = (* ctor) (value);
}
break;
case GTK_ACCESSIBLE_COLLECT_STRING:
{
GtkAccessibleValueStringCtor ctor =
(GtkAccessibleValueStringCtor) cstate->ctor;
const char *value = g_value_get_string (value_);
if (ctor == NULL)
{
if (value != NULL)
res = gtk_string_accessible_value_new (value);
}
else
{
res = (* ctor) (value);
}
}
break;
case GTK_ACCESSIBLE_COLLECT_REFERENCE:
{
GtkAccessibleValueRefCtor ctor =
(GtkAccessibleValueRefCtor) cstate->ctor;
gpointer value = g_value_get_object (value_);
if (value != NULL && !GTK_IS_ACCESSIBLE (value))
{
g_set_error_literal (error, GTK_ACCESSIBLE_VALUE_ERROR,
GTK_ACCESSIBLE_VALUE_ERROR_INVALID_VALUE,
"Reference does not implement GtkAccessible");
return NULL;
}
if (ctor == NULL)
{
if (value != NULL)
res = gtk_reference_accessible_value_new (value);
}
else
{
res = (* ctor) (value);
}
}
break;
case GTK_ACCESSIBLE_COLLECT_REFERENCE_LIST:
{
GtkAccessibleValueRefListCtor ctor =
(GtkAccessibleValueRefListCtor) cstate->ctor;
GList *value = g_value_get_pointer (value_);
if (ctor == NULL)
{
if (value != NULL)
res = gtk_reference_list_accessible_value_new (value);
}
else
{
res = (* ctor) (value);
}
}
break;
case GTK_ACCESSIBLE_COLLECT_UNDEFINED:
case GTK_ACCESSIBLE_COLLECT_INVALID:
default:
g_assert_not_reached ();
break;
}
return res;
}
static GtkAccessibleValue *
gtk_accessible_value_parse (const GtkAccessibleCollect *cstate,
const char *str,
gsize len,
GError **error)
{
GtkAccessibleValue *res = NULL;
GtkAccessibleCollectType ctype = cstate->ctype;
gboolean collects_undef = (ctype & GTK_ACCESSIBLE_COLLECT_UNDEFINED) != 0;
ctype &= (GTK_ACCESSIBLE_COLLECT_UNDEFINED - 1);
/* Tristate values include "undefined" by definition */
if (ctype == GTK_ACCESSIBLE_COLLECT_TRISTATE)
collects_undef = TRUE;
switch (ctype)
{
case GTK_ACCESSIBLE_COLLECT_BOOLEAN:
{
gboolean b;
if (collects_undef && strncmp (str, "undefined", 9) == 0)
res = gtk_undefined_accessible_value_new ();
else if (_gtk_builder_boolean_from_string (str, &b, error))
res = gtk_boolean_accessible_value_new (b);
}
break;
case GTK_ACCESSIBLE_COLLECT_TRISTATE:
{
int value;
if (collects_undef && strncmp (str, "undefined", 9) == 0)
res = gtk_undefined_accessible_value_new ();
else if (_gtk_builder_enum_from_string (GTK_TYPE_ACCESSIBLE_TRISTATE, str, &value, error))
res = gtk_boolean_accessible_value_new (value);
}
break;
case GTK_ACCESSIBLE_COLLECT_TOKEN:
{
GtkAccessibleValueEnumParser parser =
(GtkAccessibleValueEnumParser) cstate->parser;
if (collects_undef && strncmp (str, "undefined", 9) == 0)
{
res = gtk_undefined_accessible_value_new ();
}
else
{
/* Token collection requires a constructor */
g_assert (parser != NULL);
res = (* parser) (str, len, error);
}
}
break;
case GTK_ACCESSIBLE_COLLECT_INTEGER:
{
char *end = NULL;
gint64 value = g_ascii_strtoll (str, &end, 10);
if (str == end)
{
int saved_errno = errno;
g_set_error (error, GTK_ACCESSIBLE_VALUE_ERROR,
GTK_ACCESSIBLE_VALUE_ERROR_INVALID_VALUE,
"Invalid integer value “%s”: %s",
str, g_strerror (saved_errno));
return NULL;
}
else
res = gtk_int_accessible_value_new ((int) value);
}
break;
case GTK_ACCESSIBLE_COLLECT_NUMBER:
{
char *end = NULL;
double value = g_ascii_strtod (str, &end);
if (str == end || isnan (value) || isinf (value))
{
g_set_error (error, GTK_ACCESSIBLE_VALUE_ERROR,
GTK_ACCESSIBLE_VALUE_ERROR_INVALID_VALUE,
"Invalid numeric value “%s”",
str);
return NULL;
}
res = gtk_number_accessible_value_new (value);
}
break;
case GTK_ACCESSIBLE_COLLECT_STRING:
{
res = gtk_string_accessible_value_new (str);
}
break;
case GTK_ACCESSIBLE_COLLECT_REFERENCE:
case GTK_ACCESSIBLE_COLLECT_REFERENCE_LIST:
{
/* We do not error out, to let the caller code deal
* with the references themselves
*/
res = NULL;
}
break;
case GTK_ACCESSIBLE_COLLECT_UNDEFINED:
case GTK_ACCESSIBLE_COLLECT_INVALID:
default:
g_assert_not_reached ();
break;
}
return res;
}
static void
gtk_accessible_attribute_init_value (const GtkAccessibleCollect *cstate,
GValue *value)
{
GtkAccessibleCollectType ctype = cstate->ctype;
gboolean collects_undef = (ctype & GTK_ACCESSIBLE_COLLECT_UNDEFINED) != 0;
ctype &= (GTK_ACCESSIBLE_COLLECT_UNDEFINED - 1);
/* Tristate values include "undefined" by definition */
if (ctype == GTK_ACCESSIBLE_COLLECT_TRISTATE)
collects_undef = TRUE;
switch (ctype)
{
case GTK_ACCESSIBLE_COLLECT_BOOLEAN:
{
if (collects_undef)
g_value_init (value, G_TYPE_INT);
else
g_value_init (value, G_TYPE_BOOLEAN);
}
break;
case GTK_ACCESSIBLE_COLLECT_TRISTATE:
g_value_init (value, GTK_TYPE_ACCESSIBLE_TRISTATE);
break;
case GTK_ACCESSIBLE_COLLECT_TOKEN:
if (cstate->init_value != NULL)
{
GtkAccessibleValueEnumInit init_value =
(GtkAccessibleValueEnumInit) cstate->init_value;
(* init_value) (value);
}
else
g_value_init (value, G_TYPE_INT);
break;
case GTK_ACCESSIBLE_COLLECT_INTEGER:
g_value_init (value, G_TYPE_INT);
break;
case GTK_ACCESSIBLE_COLLECT_NUMBER:
g_value_init (value, G_TYPE_DOUBLE);
break;
case GTK_ACCESSIBLE_COLLECT_STRING:
g_value_init (value, G_TYPE_STRING);
break;
case GTK_ACCESSIBLE_COLLECT_REFERENCE:
g_value_init (value, GTK_TYPE_ACCESSIBLE);
break;
case GTK_ACCESSIBLE_COLLECT_REFERENCE_LIST:
g_value_init (value, G_TYPE_POINTER);
break;
case GTK_ACCESSIBLE_COLLECT_UNDEFINED:
case GTK_ACCESSIBLE_COLLECT_INVALID:
default:
g_assert_not_reached ();
break;
}
}
/*< private >
* gtk_accessible_value_collect_for_state:
* @state: a `GtkAccessibleState`
* @error: return location for a `GError`
* @args: a `va_list` reference
*
* Collects and consumes the next item in the @args variadic arguments list,
* and returns a `GtkAccessibleValue` for it.
*
* If the collection fails, @error is set and %NULL is returned.
*
* The returned value could be %NULL even on success, in which case the state
* should be reset to its default value by the caller.
*
* Returns: (transfer full) (nullable): a `GtkAccessibleValue`
*/
GtkAccessibleValue *
gtk_accessible_value_collect_for_state (GtkAccessibleState state,
GError **error,
va_list *args)
{
const GtkAccessibleCollect *cstate = &collect_states[state];
g_return_val_if_fail (state <= GTK_ACCESSIBLE_STATE_VISITED, NULL);
return gtk_accessible_value_collect_valist (cstate, error, args);
}
/*< private >
* gtk_accessible_value_collect_for_state_value:
* @state: a `GtkAccessibleState`
* @value: a `GValue`
* @error: return location for a `GError`
*
* Retrieves the value stored inside @value and returns a `GtkAccessibleValue`
* for the given @state.
*
* If the collection fails, @error is set and %NULL is returned.
*
* The returned value could be %NULL even on success, in which case the state
* should be reset to its default value by the caller.
*
* Returns: (transfer full) (nullable): a `GtkAccessibleValue`
*/
GtkAccessibleValue *
gtk_accessible_value_collect_for_state_value (GtkAccessibleState state,
const GValue *value,
GError **error)
{
const GtkAccessibleCollect *cstate = &collect_states[state];
g_return_val_if_fail (state <= GTK_ACCESSIBLE_STATE_VISITED, NULL);
return gtk_accessible_value_collect_value (cstate, value, error);
}
GtkAccessibleValue *
gtk_accessible_value_parse_for_state (GtkAccessibleState state,
const char *str,
gsize len,
GError **error)
{
const GtkAccessibleCollect *cstate = &collect_states[state];
g_return_val_if_fail (state <= GTK_ACCESSIBLE_STATE_VISITED, NULL);
return gtk_accessible_value_parse (cstate, str, len, error);
}
/**
* gtk_accessible_state_init_value:
* @state: a `GtkAccessibleState`
* @value: an uninitialized `GValue`
*
* Initializes @value with the appropriate type for the @state.
*
* This function is mostly meant for language bindings, in conjunction
* with gtk_accessible_update_relation_state().
*/
void
gtk_accessible_state_init_value (GtkAccessibleState state,
GValue *value)
{
const GtkAccessibleCollect *cstate = &collect_states[state];
g_return_if_fail (state <= GTK_ACCESSIBLE_STATE_SELECTED);
gtk_accessible_attribute_init_value (cstate, value);
}
/*< private >
* gtk_accessible_value_get_default_for_property:
* @property: a `GtkAccessibleProperty`
*
* Retrieves the `GtkAccessibleValue` that contains the default for the
* given @property.
*
* Returns: (transfer full): the `GtkAccessibleValue`
*/
GtkAccessibleValue *
gtk_accessible_value_get_default_for_property (GtkAccessibleProperty property)
{
const GtkAccessibleCollect *cstate = &collect_props[property];
g_return_val_if_fail (property <= GTK_ACCESSIBLE_PROPERTY_VALUE_TEXT, NULL);
switch (cstate->value)
{
/* Boolean properties */
case GTK_ACCESSIBLE_PROPERTY_HAS_POPUP:
case GTK_ACCESSIBLE_PROPERTY_MODAL:
case GTK_ACCESSIBLE_PROPERTY_MULTI_LINE:
case GTK_ACCESSIBLE_PROPERTY_MULTI_SELECTABLE:
case GTK_ACCESSIBLE_PROPERTY_READ_ONLY:
case GTK_ACCESSIBLE_PROPERTY_REQUIRED:
return gtk_boolean_accessible_value_new (FALSE);
/* Integer properties */
case GTK_ACCESSIBLE_PROPERTY_LEVEL:
return gtk_int_accessible_value_new (0);
/* Number properties */
case GTK_ACCESSIBLE_PROPERTY_VALUE_MAX:
case GTK_ACCESSIBLE_PROPERTY_VALUE_MIN:
case GTK_ACCESSIBLE_PROPERTY_VALUE_NOW:
return gtk_number_accessible_value_new (0);
/* String properties */
case GTK_ACCESSIBLE_PROPERTY_DESCRIPTION:
case GTK_ACCESSIBLE_PROPERTY_KEY_SHORTCUTS:
case GTK_ACCESSIBLE_PROPERTY_LABEL:
case GTK_ACCESSIBLE_PROPERTY_PLACEHOLDER:
case GTK_ACCESSIBLE_PROPERTY_ROLE_DESCRIPTION:
case GTK_ACCESSIBLE_PROPERTY_VALUE_TEXT:
return gtk_undefined_accessible_value_new ();
/* Token properties */
case GTK_ACCESSIBLE_PROPERTY_AUTOCOMPLETE:
return gtk_autocomplete_accessible_value_new (GTK_ACCESSIBLE_AUTOCOMPLETE_NONE);
case GTK_ACCESSIBLE_PROPERTY_ORIENTATION:
return gtk_undefined_accessible_value_new ();
case GTK_ACCESSIBLE_PROPERTY_SORT:
return gtk_sort_accessible_value_new (GTK_ACCESSIBLE_SORT_NONE);
default:
g_critical ("Unknown value for accessible property “%s”", cstate->name);
break;
}
return NULL;
}
/*< private >
* gtk_accessible_value_collect_for_property:
* @property: a `GtkAccessibleProperty`
* @error: return location for a `GError`
* @args: a `va_list` reference
*
* Collects and consumes the next item in the @args variadic arguments list,
* and returns a `GtkAccessibleValue` for it.
*
* If the collection fails, @error is set.
*
* Returns: (transfer full) (nullable): a `GtkAccessibleValue`
*/
GtkAccessibleValue *
gtk_accessible_value_collect_for_property (GtkAccessibleProperty property,
GError **error,
va_list *args)
{
const GtkAccessibleCollect *cstate = &collect_props[property];
g_return_val_if_fail (property <= GTK_ACCESSIBLE_PROPERTY_VALUE_TEXT, NULL);
return gtk_accessible_value_collect_valist (cstate, error, args);
}
/*< private >
* gtk_accessible_value_collect_for_property_value:
* @property: a `GtkAccessibleProperty`
* @value: a `GValue`
* @error: return location for a `GError`
*
* Retrieves the value stored inside @value and returns a `GtkAccessibleValue`
* for the given @property.
*
* If the collection fails, @error is set.
*
* The returned value could be %NULL even on success, in which case the property
* should be reset to its default value by the caller.
*
* Returns: (transfer full) (nullable): a `GtkAccessibleValue`
*/
GtkAccessibleValue *
gtk_accessible_value_collect_for_property_value (GtkAccessibleProperty property,
const GValue *value,
GError **error)
{
const GtkAccessibleCollect *cstate = &collect_props[property];
g_return_val_if_fail (property <= GTK_ACCESSIBLE_PROPERTY_VALUE_TEXT, NULL);
return gtk_accessible_value_collect_value (cstate, value, error);
}
GtkAccessibleValue *
gtk_accessible_value_parse_for_property (GtkAccessibleProperty property,
const char *str,
gsize len,
GError **error)
{
const GtkAccessibleCollect *cstate = &collect_props[property];
g_return_val_if_fail (property <= GTK_ACCESSIBLE_PROPERTY_VALUE_TEXT, NULL);
return gtk_accessible_value_parse (cstate, str, len, error);
}
/**
* gtk_accessible_property_init_value:
* @property: a `GtkAccessibleProperty`
* @value: an uninitialized `GValue`
*
* Initializes @value with the appropriate type for the @property.
*
* This function is mostly meant for language bindings, in conjunction
* with gtk_accessible_update_property_value().
*/
void
gtk_accessible_property_init_value (GtkAccessibleProperty property,
GValue *value)
{
const GtkAccessibleCollect *cstate = &collect_props[property];
g_return_if_fail (property <= GTK_ACCESSIBLE_PROPERTY_VALUE_TEXT);
gtk_accessible_attribute_init_value (cstate, value);
}
/*< private >
* gtk_accessible_value_get_default_for_relation:
* @relation: a `GtkAccessibleRelation`
*
* Retrieves the `GtkAccessibleValue` that contains the default for the
* given @relation.
*
* Returns: (transfer full): the `GtkAccessibleValue`
*/
GtkAccessibleValue *
gtk_accessible_value_get_default_for_relation (GtkAccessibleRelation relation)
{
const GtkAccessibleCollect *cstate = &collect_rels[relation];
g_return_val_if_fail (relation <= GTK_ACCESSIBLE_RELATION_SET_SIZE, NULL);
switch (cstate->value)
{
/* References */
case GTK_ACCESSIBLE_RELATION_ACTIVE_DESCENDANT:
case GTK_ACCESSIBLE_RELATION_CONTROLS:
case GTK_ACCESSIBLE_RELATION_DESCRIBED_BY:
case GTK_ACCESSIBLE_RELATION_DETAILS:
case GTK_ACCESSIBLE_RELATION_ERROR_MESSAGE:
case GTK_ACCESSIBLE_RELATION_FLOW_TO:
case GTK_ACCESSIBLE_RELATION_LABELLED_BY:
case GTK_ACCESSIBLE_RELATION_OWNS:
return gtk_undefined_accessible_value_new ();
/* Integers */
case GTK_ACCESSIBLE_RELATION_COL_COUNT:
case GTK_ACCESSIBLE_RELATION_COL_INDEX:
case GTK_ACCESSIBLE_RELATION_COL_SPAN:
case GTK_ACCESSIBLE_RELATION_POS_IN_SET:
case GTK_ACCESSIBLE_RELATION_ROW_COUNT:
case GTK_ACCESSIBLE_RELATION_ROW_INDEX:
case GTK_ACCESSIBLE_RELATION_ROW_SPAN:
case GTK_ACCESSIBLE_RELATION_SET_SIZE:
return gtk_int_accessible_value_new (0);
/* Strings */
case GTK_ACCESSIBLE_RELATION_ROW_INDEX_TEXT:
case GTK_ACCESSIBLE_RELATION_COL_INDEX_TEXT:
return gtk_undefined_accessible_value_new ();
default:
g_critical ("Unknown value for accessible property “%s”", cstate->name);
break;
}
return NULL;
}
/*< private >
* gtk_accessible_value_collect_for_relation:
* @relation: a `GtkAccessibleRelation`
* @error: return location for a `GError`
* @args: a `va_list` reference
*
* Collects and consumes the next item in the @args variadic arguments list,
* and returns a `GtkAccessibleValue` for it.
*
* If the collection fails, @error is set and %NULL is returned.
*
* The returned value could be %NULL even on success, in which case the relation
* should be reset to its default value by the caller.
*
* Returns: (transfer full) (nullable): a `GtkAccessibleValue`
*/
GtkAccessibleValue *
gtk_accessible_value_collect_for_relation (GtkAccessibleRelation relation,
GError **error,
va_list *args)
{
const GtkAccessibleCollect *cstate = &collect_rels[relation];
g_return_val_if_fail (relation <= GTK_ACCESSIBLE_RELATION_SET_SIZE, NULL);
return gtk_accessible_value_collect_valist (cstate, error, args);
}
/*< private >
* gtk_accessible_value_collect_for_relation_value:
* @relation: a `GtkAccessibleRelation`
* @value: a `GValue`
* @error: return location for a `GError`
*
* Retrieves the value stored inside @value and returns a `GtkAccessibleValue`
* for the given @relation.
*
* If the collection fails, @error is set and %NULL is returned.
*
* The returned value could be %NULL even on success, in which case the relation
* should be reset to its default value by the caller.
*
* Returns: (transfer full) (nullable): a `GtkAccessibleValue`
*/
GtkAccessibleValue *
gtk_accessible_value_collect_for_relation_value (GtkAccessibleRelation relation,
const GValue *value,
GError **error)
{
const GtkAccessibleCollect *cstate = &collect_rels[relation];
g_return_val_if_fail (relation <= GTK_ACCESSIBLE_RELATION_SET_SIZE, NULL);
return gtk_accessible_value_collect_value (cstate, value, error);
}
GtkAccessibleValue *
gtk_accessible_value_parse_for_relation (GtkAccessibleRelation relation,
const char *str,
gsize len,
GError **error)
{
const GtkAccessibleCollect *cstate = &collect_rels[relation];
g_return_val_if_fail (relation <= GTK_ACCESSIBLE_RELATION_SET_SIZE, NULL);
return gtk_accessible_value_parse (cstate, str, len, error);
}
/**
* gtk_accessible_relation_init_value:
* @relation: a `GtkAccessibleRelation`
* @value: an uninitialized `GValue`
*
* Initializes @value with the appropriate type for the @relation.
*
* This function is mostly meant for language bindings, in conjunction
* with gtk_accessible_update_relation_value().
*/
void
gtk_accessible_relation_init_value (GtkAccessibleRelation relation,
GValue *value)
{
const GtkAccessibleCollect *cstate = &collect_rels[relation];
g_return_if_fail (relation <= GTK_ACCESSIBLE_RELATION_SET_SIZE);
gtk_accessible_attribute_init_value (cstate, value);
}
/* }}} */