2 * AT-SPI - Assistive Technology Service Provider Interface
3 * (Gnome Accessibility Project; http://developer.gnome.org/projects/gap)
5 * Copyright 2001, 2002 Sun Microsystems Inc.,
6 * Copyright 2001, 2002 Ximian, Inc.
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with this library; if not, write to the
20 * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
21 * Boston, MA 02110-1301, USA.
26 * AtspiComponent function implementations
30 #include "atspi-private.h"
31 #include "atspi-accessible-private.h"
34 atspi_rect_free (AtspiRect *rect)
40 atspi_rect_copy (AtspiRect *src)
42 AtspiRect *dst = g_new (AtspiRect, 1);
45 dst->height = src->height;
46 dst->width = src->width;
50 G_DEFINE_BOXED_TYPE (AtspiRect, atspi_rect, atspi_rect_copy, atspi_rect_free)
53 atspi_point_copy (AtspiPoint *src)
55 AtspiPoint *dst = g_new (AtspiPoint, 1);
61 G_DEFINE_BOXED_TYPE (AtspiPoint, atspi_point, atspi_point_copy, g_free)
64 * atspi_component_contains:
65 * @obj: a pointer to the #AtspiComponent to query.
66 * @x: a #gint specifying the x coordinate in question.
67 * @y: a #gint specifying the y coordinate in question.
68 * @ctype: the desired coordinate system of the point (@x, @y)
69 * (e.g. CSPI_COORD_TYPE_WINDOW, CSPI_COORD_TYPE_SCREEN).
71 * Queries whether a given #AtspiComponent contains a particular point.
73 * Returns: #TRUE if the specified component contains the point (@x, @y),
77 atspi_component_contains (AtspiComponent *obj,
80 AtspiCoordType ctype, GError **error)
82 dbus_bool_t retval = FALSE;
83 dbus_int32_t d_x = x, d_y = y;
84 dbus_uint32_t d_ctype = ctype;
86 g_return_val_if_fail (obj != NULL, FALSE);
88 _atspi_dbus_call (obj, atspi_interface_component, "Contains", error, "iiu=>b", d_x, d_y, d_ctype, &retval);
94 * atspi_component_get_accessible_at_point:
95 * @obj: a pointer to the #AtspiComponent to query.
96 * @x: a #gint specifying the x coordinate of the point in question.
97 * @y: a #gint specifying the y coordinate of the point in question.
98 * @ctype: the coordinate system of the point (@x, @y)
99 * (e.g. ATSPI_COORD_TYPE_WINDOW, ATSPI_COORD_TYPE_SCREEN).
101 * Gets the accessible child at a given coordinate within an #AtspiComponent.
103 * Returns: (nullable) (transfer full): a pointer to an
104 * #AtspiAccessible child of the specified component which
105 * contains the point (@x, @y), or NULL if no child contains
109 atspi_component_get_accessible_at_point (AtspiComponent *obj,
112 AtspiCoordType ctype, GError **error)
114 dbus_int32_t d_x = x, d_y = y;
115 dbus_uint32_t d_ctype = ctype;
118 g_return_val_if_fail (obj != NULL, FALSE);
120 reply = _atspi_dbus_call_partial (obj, atspi_interface_component, "GetAccessibleAtPoint", error, "iiu", d_x, d_y, d_ctype);
122 return _atspi_dbus_return_accessible_from_message (reply);
126 * atspi_component_get_extents:
127 * @obj: a pointer to the #AtspiComponent to query.
128 * @ctype: the desired coordinate system into which to return the results,
129 * (e.g. ATSPI_COORD_TYPE_WINDOW, ATSPI_COORD_TYPE_SCREEN).
131 * Gets the bounding box of the specified #AtspiComponent.
132 * The returned values are meaningful only if the Component has both
133 * STATE_VISIBLE and STATE_SHOWING.
135 * Returns: An #AtspiRect giving the accessible's extents.
138 atspi_component_get_extents (AtspiComponent *obj,
139 AtspiCoordType ctype, GError **error)
141 dbus_uint32_t d_ctype = ctype;
143 AtspiAccessible *accessible;
145 bbox.x = bbox.y = bbox.width = bbox.height = -1;
146 g_return_val_if_fail (obj != NULL, atspi_rect_copy (&bbox));
148 accessible = ATSPI_ACCESSIBLE (obj);
149 if (accessible->priv->cache && ctype == ATSPI_COORD_TYPE_SCREEN)
151 GValue *val = g_hash_table_lookup (accessible->priv->cache, "Component.ScreenExtents");
154 return g_value_dup_boxed (val);
158 _atspi_dbus_call (obj, atspi_interface_component, "GetExtents", error, "u=>(iiii)", d_ctype, &bbox);
159 return atspi_rect_copy (&bbox);
163 * atspi_component_get_position:
164 * @obj: a pointer to the #AtspiComponent to query.
165 * @ctype: the desired coordinate system into which to return the results,
166 * (e.g. ATSPI_COORD_TYPE_WINDOW, ATSPI_COORD_TYPE_SCREEN).
168 * Gets the minimum x and y coordinates of the specified #AtspiComponent.
169 * The returned values are meaningful only if the Component has both
170 * STATE_VISIBLE and STATE_SHOWING.
172 * returns: An #AtspiPoint giving the @obj's position.
175 atspi_component_get_position (AtspiComponent *obj,
176 AtspiCoordType ctype, GError **error)
178 dbus_int32_t d_x, d_y;
179 dbus_uint32_t d_ctype = ctype;
185 return atspi_point_copy (&ret);
187 _atspi_dbus_call (obj, atspi_interface_component, "GetPosition", error, "u=>ii", d_ctype, &d_x, &d_y);
191 return atspi_point_copy (&ret);
195 * atspi_component_get_size:
196 * @obj: a pointer to the #AtspiComponent to query.
198 * Gets the size of the specified #AtspiComponent.
199 * The returned values are meaningful only if the Component has both
200 * STATE_VISIBLE and STATE_SHOWING.
202 * returns: An #AtspiPoint giving the @obj's size.
205 atspi_component_get_size (AtspiComponent *obj, GError **error)
207 dbus_int32_t d_w, d_h;
212 return atspi_point_copy (&ret);
214 _atspi_dbus_call (obj, atspi_interface_component, "GetSize", error, "=>ii", &d_w, &d_h);
217 return atspi_point_copy (&ret);
221 * atspi_component_get_layer:
222 * @obj: a pointer to the #AtspiComponent to query.
224 * Queries which layer the component is painted into, to help determine its
225 * visibility in terms of stacking order.
227 * Returns: the #AtspiComponentLayer into which this component is painted.
230 atspi_component_get_layer (AtspiComponent *obj, GError **error)
232 dbus_uint32_t zlayer = -1;
234 _atspi_dbus_call (obj, atspi_interface_component, "GetLayer", error, "=>u", &zlayer);
240 * atspi_component_get_mdi_z_order:
241 * @obj: a pointer to the #AtspiComponent to query.
243 * Queries the z stacking order of a component which is in the MDI or window
244 * layer. (Bigger z-order numbers mean nearer the top)
246 * Returns: a #gshort indicating the stacking order of the component
247 * in the MDI layer, or -1 if the component is not in the MDI layer.
250 atspi_component_get_mdi_z_order (AtspiComponent *obj, GError **error)
252 dbus_uint16_t retval = -1;
254 _atspi_dbus_call (obj, atspi_interface_component, "GetMDIZOrder", error, "=>n", &retval);
260 * atspi_component_grab_focus:
261 * @obj: a pointer to the #AtspiComponent on which to operate.
263 * Attempts to set the keyboard input focus to the specified
266 * Returns: #TRUE if successful, #FALSE otherwise.
270 atspi_component_grab_focus (AtspiComponent *obj, GError **error)
272 dbus_bool_t retval = FALSE;
274 _atspi_dbus_call (obj, atspi_interface_component, "GrabFocus", error, "=>b", &retval);
280 * atspi_component_get_alpha:
281 * @obj: The #AtspiComponent to be queried.
283 * Gets the opacity/alpha value of a component, if alpha blending is in use.
285 * Returns: the opacity value of a component, as a #gdouble between 0.0 and 1.0.
288 atspi_component_get_alpha (AtspiComponent *obj, GError **error)
292 _atspi_dbus_call (obj, atspi_interface_component, "GetAlpha", error, "=>d", &retval);
298 * atspi_component_set_extents:
299 * @obj: a pointer to the #AtspiComponent to move.
300 * @x: the new vertical position to which the component should be moved.
301 * @y: the new horizontal position to which the component should be moved.
302 * @width: the width to which the component should be resized.
303 * @height: the height to which the component should be resized.
304 * @ctype: the coordinate system in which the position is specified.
305 * (e.g. ATSPI_COORD_TYPE_WINDOW, ATSPI_COORD_TYPE_SCREEN).
307 * Moves and resizes the specified component.
309 * Returns: #TRUE if successful; #FALSE otherwise.
312 atspi_component_set_extents (AtspiComponent *obj,
317 AtspiCoordType ctype,
320 dbus_int32_t d_x = x, d_y = y, d_width = width, d_height = height;
321 dbus_uint32_t d_ctype = ctype;
322 DBusMessageIter iter, iter_struct;
323 DBusMessage *message, *reply;
324 dbus_bool_t retval = FALSE;
325 AtspiAccessible *aobj = ATSPI_ACCESSIBLE (obj);
327 g_return_val_if_fail (obj != NULL, FALSE);
329 if (!aobj->parent.app || !aobj->parent.app->bus_name)
331 g_set_error_literal (error, ATSPI_ERROR, ATSPI_ERROR_APPLICATION_GONE,
332 _("The application no longer exists"));
336 message = dbus_message_new_method_call (aobj->parent.app->bus_name,
338 atspi_interface_component,
343 dbus_message_iter_init_append (message, &iter);
344 if (!dbus_message_iter_open_container (&iter, DBUS_TYPE_STRUCT, NULL, &iter_struct))
346 dbus_message_unref (message);
349 dbus_message_iter_append_basic (&iter_struct, DBUS_TYPE_INT32, &d_x);
350 dbus_message_iter_append_basic (&iter_struct, DBUS_TYPE_INT32, &d_y);
351 dbus_message_iter_append_basic (&iter_struct, DBUS_TYPE_INT32, &d_width);
352 dbus_message_iter_append_basic (&iter_struct, DBUS_TYPE_INT32, &d_height);
353 dbus_message_iter_close_container (&iter, &iter_struct);
354 dbus_message_iter_append_basic (&iter, DBUS_TYPE_UINT32, &d_ctype);
356 reply = _atspi_dbus_send_with_reply_and_block (message, error);
357 dbus_message_get_args (reply, NULL, DBUS_TYPE_BOOLEAN, &retval,
359 dbus_message_unref (reply);
364 * atspi_component_set_position:
365 * @obj: a pointer to the #AtspiComponent to move.
366 * @x: the new vertical position to which the component should be moved.
367 * @y: the new horizontal position to which the component should be moved.
368 * @ctype: the coordinate system in which the position is specified.
369 * (e.g. ATSPI_COORD_TYPE_WINDOW, ATSPI_COORD_TYPE_SCREEN).
371 * Moves the component to the specified position.
373 * Returns: #TRUE if successful; #FALSE otherwise.
376 atspi_component_set_position (AtspiComponent *obj,
379 AtspiCoordType ctype,
382 dbus_int32_t d_x = x, d_y = y;
383 dbus_uint32_t d_ctype = ctype;
384 dbus_bool_t ret = FALSE;
386 g_return_val_if_fail (obj != NULL, FALSE);
388 _atspi_dbus_call (obj, atspi_interface_component, "SetPosition", error,
389 "iiu=>b", d_x, d_y, d_ctype, &ret);
395 * atspi_component_set_size:
396 * @obj: a pointer to the #AtspiComponent to query.
397 * @width: the width to which the component should be resized.
398 * @height: the height to which the component should be resized.
400 * Resizes the specified component to the given coordinates.
402 * Returns: #TRUE if successful; #FALSE otherwise.
405 atspi_component_set_size (AtspiComponent *obj,
410 dbus_int32_t d_width = width, d_height = height;
411 dbus_bool_t ret = FALSE;
413 g_return_val_if_fail (obj != NULL, FALSE);
415 _atspi_dbus_call (obj, atspi_interface_component, "SetSize", error, "ii=>b",
416 d_width, d_height, &ret);
422 * atspi_component_scroll_to:
423 * @obj: a pointer to the #AtspiComponent object on which to operate.
424 * @type: a #AtspiScrollType indicating where the object should be placed on the
427 * Scrolls whatever container of the #AtspiComponent object so it becomes
428 * visible on the screen.
430 * Returns: #TRUE if successful, #FALSE otherwise.
433 atspi_component_scroll_to (AtspiComponent *obj,
434 AtspiScrollType type,
437 dbus_bool_t retval = FALSE;
439 g_return_val_if_fail (obj != NULL, FALSE);
441 _atspi_dbus_call (obj, atspi_interface_component,
442 "ScrollTo", error, "u=>b", type, &retval);
448 * atspi_component_scroll_to_point:
449 * @obj: a pointer to the #AtspiComponent object on which to operate.
450 * @coords: a #AtspiCoordType indicating whether the coordinates are relative to
451 * the screen, to the window, or to the parent object.
452 * @x: the x coordinate of the point to reach
453 * @y: the y coordinate of the point to reach
454 * @error: return location for a #GError
456 * Scrolls whatever container of the #AtspiComponent object so it becomes
457 * visible on the screen at a given position.
459 * Returns: #TRUE if successful, #FALSE otherwise.
462 atspi_component_scroll_to_point (AtspiComponent *obj,
463 AtspiCoordType coords,
468 dbus_bool_t retval = FALSE;
470 g_return_val_if_fail (obj != NULL, FALSE);
472 _atspi_dbus_call (obj, atspi_interface_component,
473 "ScrollToPoint", error, "uii=>b", coords, x, y, &retval);
479 atspi_component_base_init (AtspiComponent *klass)
484 atspi_component_get_type (void)
486 static GType type = 0;
489 static const GTypeInfo tinfo =
491 sizeof (AtspiComponent),
492 (GBaseInitFunc) atspi_component_base_init,
493 (GBaseFinalizeFunc) NULL,
496 type = g_type_register_static (G_TYPE_INTERFACE, "AtspiComponent", &tinfo, 0);