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.
7 * Copyright 2010, 2011 Novell, Inc.
9 * This library is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Library General Public
11 * License as published by the Free Software Foundation; either
12 * version 2 of the License, or (at your option) any later version.
14 * This library is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Library General Public License for more details.
19 * You should have received a copy of the GNU Library General Public
20 * License along with this library; if not, write to the
21 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
22 * Boston, MA 02111-1307, USA.
25 #include "atspi-private.h"
28 * @src: a pointer to the source #AtspiRange object that will be copied.
30 * Gets a copy of an #AtspiRange object.
32 * Returns: the #AtspiRange copy of an #AtspiRange object.
35 atspi_range_copy (AtspiRange *src)
37 AtspiRange *dst = g_new (AtspiRange, 1);
39 dst->start_offset = src->start_offset;
40 dst->end_offset = src->end_offset;
44 G_DEFINE_BOXED_TYPE (AtspiRange, atspi_range, atspi_range_copy, g_free)
46 static AtspiTextRange *
47 atspi_text_range_copy (AtspiTextRange *src)
49 AtspiTextRange *dst = g_new (AtspiTextRange, 1);
51 dst->content = g_strdup (src->content);
52 dst->start_offset = src->start_offset;
53 dst->end_offset = src->end_offset;
58 atspi_text_range_free (AtspiTextRange *range)
60 g_free (range->content);
64 G_DEFINE_BOXED_TYPE (AtspiTextRange, atspi_text_range, atspi_text_range_copy,
65 atspi_text_range_free)
68 * atspi_text_get_character_count:
69 * @obj: a pointer to the #AtspiText object to query.
71 * Gets the character count of an #AccessibleText object.
73 * Returns: a #gint indicating the total number of
74 * characters in the #AccessibleText object.
77 atspi_text_get_character_count (AtspiText *obj, GError **error)
79 dbus_int32_t retval = 0;
81 g_return_val_if_fail (obj != NULL, -1);
83 _atspi_dbus_get_property (obj, atspi_interface_text, "CharacterCount", error, "i", &retval);
89 * atspi_text_get_text:
90 * @obj: a pointer to the #AtspiText object to query.
91 * @start_offset: a #gint indicating the start of the desired text range.
92 * @end_offset: a #gint indicating the first character past the desired range.
94 * Gets a range of text from an #AtspiText object. The number of bytes
95 * in the returned string may exceed either end_offset or start_offset, since
96 * UTF-8 is a variable-width encoding.
98 * Returns: a text string containing characters from @start_offset
99 * to @end_offset-1, inclusive, encoded as UTF-8.
102 atspi_text_get_text (AtspiText *obj,
107 gchar *retval = NULL;
108 dbus_int32_t d_start_offset = start_offset, d_end_offset = end_offset;
110 g_return_val_if_fail (obj != NULL, g_strdup (""));
112 _atspi_dbus_call (obj, atspi_interface_text, "GetText", error, "ii=>s", d_start_offset, d_end_offset, &retval);
115 retval = g_strdup ("");
121 * atspi_text_get_caret_offset:
122 * @obj: a pointer to the #AtspiText object to query.
124 * Gets the current offset of the text caret in an #AtspiText object.
126 * Returns: a #gint indicating the current position of the text caret.
129 atspi_text_get_caret_offset (AtspiText *obj, GError **error)
131 dbus_int32_t retval = -1;
133 g_return_val_if_fail (obj != NULL, -1);
135 _atspi_dbus_get_property (obj, atspi_interface_text, "CaretOffset", error, "i", &retval);
141 * atspi_text_get_attributes:
142 * @obj: a pointer to the #AtspiText object to query.
143 * @offset: a #gint indicating the offset from which the attribute
145 * @start_offset: (out): a #gint pointer indicating the start of the desired text
147 * @end_offset: (out): a #gint pointer indicating the first character past the desired
150 * Gets the attributes applied to a range of text from an #AtspiText
151 * object. The text attributes correspond to CSS attributes
153 * <em>DEPRECATED</em>
155 * Returns: (element-type gchar* gchar*) (transfer full): a #GHashTable
156 * describing the attributes at the given character offset.
158 * Deprecated: 2.10: Use atspi_text_get_text_attributes instead.
159 * Rename to: atspi_text_get_text_attributes
162 atspi_text_get_attributes (AtspiText *obj,
168 return atspi_text_get_text_attributes (obj, offset, start_offset, end_offset, error);
172 * atspi_text_get_text_attributes:
173 * @obj: a pointer to the #AtspiText object to query.
174 * @offset: a #gint indicating the offset from which the attribute
176 * @start_offset: (out): a #gint pointer indicating the start of the desired text
178 * @end_offset: (out): a #gint pointer indicating the first character past the desired
181 * Gets the attributes applied to a range of text from an #AtspiText
182 * object. The text attributes correspond to CSS attributes
184 * <em>DEPRECATED</em>
186 * Returns: (element-type gchar* gchar*) (transfer full): a #GHashTable
187 * describing the attributes at the given character offset.
190 atspi_text_get_text_attributes (AtspiText *obj,
196 dbus_int32_t d_offset = offset;
197 dbus_int32_t d_start_offset, d_end_offset;
199 DBusMessageIter iter;
200 GHashTable *ret = NULL;
205 reply = _atspi_dbus_call_partial (obj, atspi_interface_text, "GetAttributes", error, "i", d_offset);
206 _ATSPI_DBUS_CHECK_SIG (reply, "a{ss}ii", error, ret)
208 dbus_message_iter_init (reply, &iter);
209 ret = _atspi_dbus_hash_from_iter (&iter);
210 dbus_message_iter_next (&iter);
212 dbus_message_iter_get_basic (&iter, &d_start_offset);
214 *start_offset = d_start_offset;
215 dbus_message_iter_next (&iter);
216 dbus_message_iter_get_basic (&iter, &d_end_offset);
218 *end_offset = d_end_offset;
220 dbus_message_unref (reply);
225 * atspi_text_get_attribute_run:
226 * @obj: a pointer to the #AtspiText object to query.
227 * @offset: a #gint indicating the offset from which the attribute
229 * @include_defaults: a #bool that, when set as #FALSE, indicates the call
230 * should only return those attributes which are explicitly set on the current
231 * attribute run, omitting any attributes which are inherited from the
233 * @start_offset: (out): a #gint pointer indicating the start of the desired text
235 * @end_offset: (out): a #gint pointer indicating the first character past the desired
238 * Gets a set of attributes applied to a range of text from an #AtspiText object, optionally
239 * including its 'default' attributes.
241 * Returns: (element-type gchar* gchar*) (transfer full): a #GHashTable with attributes
242 * defined at the indicated offset, optionally including the 'default' ones.
245 atspi_text_get_attribute_run (AtspiText *obj,
247 gboolean include_defaults,
252 dbus_int32_t d_offset = offset;
253 dbus_int32_t d_start_offset, d_end_offset;
255 DBusMessageIter iter;
256 GHashTable *ret = NULL;
261 reply = _atspi_dbus_call_partial (obj, atspi_interface_text,
262 "GetAttributeRun", error, "ib", d_offset,
264 _ATSPI_DBUS_CHECK_SIG (reply, "a{ss}ii", error, ret)
266 dbus_message_iter_init (reply, &iter);
267 ret = _atspi_dbus_hash_from_iter (&iter);
268 dbus_message_iter_next (&iter);
270 dbus_message_iter_get_basic (&iter, &d_start_offset);
272 *start_offset = d_start_offset;
273 dbus_message_iter_next (&iter);
274 dbus_message_iter_get_basic (&iter, &d_end_offset);
276 *end_offset = d_end_offset;
278 dbus_message_unref (reply);
283 * atspi_text_get_attribute_value:
284 * @obj: a pointer to the #AtspiText object to query.
285 * @offset: The character offset at which to query the attribute.
286 * @attribute_name: The attribute to query.
288 * Gets the value of a named attribute at a given offset.
290 * Returns: the value of a given attribute at the given offset, or NULL if
293 * Deprecated: 2.10: Use atspi_text_get_text_attribute_value instead.
294 * Rename to: atspi_text_get_text_attribute_value
297 atspi_text_get_attribute_value (AtspiText *obj,
299 gchar *attribute_value,
302 return atspi_text_get_text_attribute_value (obj, offset, attribute_value,
307 * atspi_text_get_text_attribute_value:
308 * @obj: a pointer to the #AtspiText object to query.
309 * @offset: The character offset at which to query the attribute.
310 * @attribute_name: The attribute to query.
312 * Gets the value of a named attribute at a given offset.
314 * Returns: the value of a given attribute at the given offset, or NULL if
318 atspi_text_get_text_attribute_value (AtspiText *obj,
320 gchar *attribute_value,
323 gchar *retval = NULL;
325 g_return_val_if_fail (obj != NULL, NULL);
327 _atspi_dbus_call (obj, atspi_interface_text, "GetAttributeValue", error, "i=>s", offset, &retval);
333 * atspi_text_get_default_attributes:
334 * @obj: a pointer to the #AtspiText object to query.
336 * Gets the default attributes applied to an #AtspiText
337 * object. The text attributes correspond to CSS attributes
338 * where possible. The combination of this attribute set and
339 * the attributes reported by #atspi_text_get_attributes
340 * describes the entire set of text attributes over a range.
342 * Returns: (element-type gchar* gchar*) (transfer full): a #GHashTable
343 * containing the default attributes applied to a text object,
344 * (exclusive of explicitly-set attributes), encoded as UTF-8.
347 atspi_text_get_default_attributes (AtspiText *obj, GError **error)
351 g_return_val_if_fail (obj != NULL, NULL);
353 reply = _atspi_dbus_call_partial (obj, atspi_interface_text, "GetDefaultAttributes", error, "");
354 return _atspi_dbus_return_hash_from_message (reply);
359 * atspi_text_set_caret_offset:
360 * @obj: a pointer to the #AtspiText object on which to operate.
361 * @new_offset: the offset to which the text caret is to be moved.
363 * Moves the text caret to a given position.
365 * Returns: #TRUE if successful, #FALSE otherwise.
368 atspi_text_set_caret_offset (AtspiText *obj,
372 dbus_int32_t d_new_offset = new_offset;
373 dbus_bool_t retval = FALSE;
375 g_return_val_if_fail (obj != NULL, FALSE);
377 _atspi_dbus_call (obj, atspi_interface_text, "SetCaretOffset", error, "i=>b", d_new_offset, &retval);
383 * atspi_text_get_text_before_offset:
384 * @obj: a pointer to the #AtspiText object on which to operate.
385 * @offset: a #gint indicating the offset from which the delimiter
387 * @type: an #AtspiTextBoundaryType indicating whether the desired
388 * text string is a word, sentence, line, or attribute run.
390 * Gets delimited text from an #AtspiText object which precedes a given
393 * Returns: an #AtspiTextRange containing a UTF-8 string representing the
394 * delimited text, both of whose delimiting boundaries are before the
395 * current offset, or an empty string if no such text exists.
398 atspi_text_get_text_before_offset (AtspiText *obj,
400 AtspiTextBoundaryType type,
403 dbus_int32_t d_offset = offset;
404 dbus_uint32_t d_type = type;
405 dbus_int32_t d_start_offset = -1, d_end_offset = -1;
406 AtspiTextRange *range = g_new0 (AtspiTextRange, 1);
408 range->start_offset = range->end_offset = -1;
412 _atspi_dbus_call (obj, atspi_interface_text, "GetTextBeforeOffset", error,
413 "iu=>sii", d_offset, d_type, &range->content,
414 &d_start_offset, &d_end_offset);
416 range->start_offset = d_start_offset;
417 range->end_offset = d_end_offset;
419 range->content = g_strdup ("");
425 * atspi_text_get_text_at_offset:
426 * @obj: a pointer to the #AtspiText object on which to operate.
427 * @offset: a #gint indicating the offset from which the delimiter
429 * @type: an #AtspiTextBoundaryType indicating whether the desired
430 * text string is a word, sentence, line, or attribute run.
432 * Gets delimited text from an #AtspiText object which includes a given
435 * Returns: an #AtspiTextRange containing a UTF-8 string representing the
436 * delimited text, whose delimiting boundaries bracket the
437 * current offset, or an empty string if no such text exists.
440 atspi_text_get_text_at_offset (AtspiText *obj,
442 AtspiTextBoundaryType type,
445 dbus_int32_t d_offset = offset;
446 dbus_uint32_t d_type = type;
447 dbus_int32_t d_start_offset = -1, d_end_offset = -1;
448 AtspiTextRange *range = g_new0 (AtspiTextRange, 1);
450 range->start_offset = range->end_offset = -1;
454 _atspi_dbus_call (obj, atspi_interface_text, "GetTextAtOffset", error,
455 "iu=>sii", d_offset, d_type, &range->content,
456 &d_start_offset, &d_end_offset);
458 range->start_offset = d_start_offset;
459 range->end_offset = d_end_offset;
461 range->content = g_strdup ("");
467 * atspi_text_get_text_after_offset:
468 * @obj: a pointer to the #AtspiText object on which to operate.
469 * @offset: a #gint indicating the offset from which the delimiter
471 * @type: an #AtspiTextBoundaryType indicating whether the desired
472 * text string is a word, sentence, line, or attribute run.
474 * Gets delimited text from an #AtspiText object which follows a given
477 * Returns: an #AtspiTextRange containing a UTF-8 string representing the
478 * delimited text, both of whose delimiting boundaries are after or
479 * inclusive of the current offset, or an empty string if no such
483 atspi_text_get_text_after_offset (AtspiText *obj,
485 AtspiTextBoundaryType type,
488 dbus_int32_t d_offset = offset;
489 dbus_uint32_t d_type = type;
490 dbus_int32_t d_start_offset = -1, d_end_offset = -1;
491 AtspiTextRange *range = g_new0 (AtspiTextRange, 1);
493 range->start_offset = range->end_offset = -1;
497 _atspi_dbus_call (obj, atspi_interface_text, "GetTextAfterOffset", error,
498 "iu=>sii", d_offset, d_type, &range->content,
499 &d_start_offset, &d_end_offset);
501 range->start_offset = d_start_offset;
502 range->end_offset = d_end_offset;
504 range->content = g_strdup ("");
510 * atspi_text_get_character_at_offset:
511 * @obj: a pointer to the #AtspiText object on which to operate.
512 * @offset: a #gint indicating the text offset where the desired
513 * character is located.
515 * Gets the character at a given offset for an #AtspiText object.
517 * Returns: a #guint representing the
518 * UCS-4 unicode code point of the given character, or
519 * 0xFFFFFFFF if the character in question cannot be represented
520 * in the UCS-4 encoding.
523 atspi_text_get_character_at_offset (AtspiText *obj,
527 dbus_int32_t d_offset = offset;
528 dbus_int32_t retval = -1;
530 g_return_val_if_fail (obj != NULL, -1);
532 _atspi_dbus_call (obj, atspi_interface_text, "GetCharacterAtOffset", error, "i=>i", d_offset, &retval);
538 * atspi_text_get_character_extents:
539 * @obj: a pointer to the #AtspiText object on which to operate.
540 * @offset: a #gint indicating the offset of the text character for
541 * whom boundary information is requested.
542 * @type: an #AccessibleCoordType indicating the coordinate system to use
543 * for the returned values.
545 * Gets a bounding box containing the glyph representing
546 * the character at a particular text offset.
548 * Returns: An #AtspiRect specifying the position and size of the character.
552 atspi_text_get_character_extents (AtspiText *obj,
557 dbus_int32_t d_offset = offset;
558 dbus_uint32_t d_type = type;
559 dbus_int32_t d_x, d_y, d_width, d_height;
562 ret.x = ret.y = ret.width = ret.height = -1;
565 return atspi_rect_copy (&ret);
567 _atspi_dbus_call (obj, atspi_interface_text, "GetCharacterExtents", error, "iu=>iiii", d_offset, d_type, &d_x, &d_y, &d_width, &d_height);
572 ret.height = d_height;
573 return atspi_rect_copy (&ret);
577 * atspi_text_get_offset_at_point:
578 * @obj: a pointer to the #AtspiText object on which to operate.
579 * @x: the x coordinate of the point to be queried.
580 * @y: the y coordinate of the point to be queried.
581 * @type: an #AtspiCoordType indicating the coordinate system in which
582 * the values should be returned.
584 * Gets the character offset into the text at a given point.
586 * Returns: the offset (as a #gint) at the point (@x, @y)
587 * in the specified coordinate system.
591 atspi_text_get_offset_at_point (AtspiText *obj,
597 dbus_int32_t d_x = x, d_y = y;
598 dbus_uint32_t d_type = type;
599 dbus_int32_t retval = -1;
601 g_return_val_if_fail (obj != NULL, -1);
603 _atspi_dbus_call (obj, atspi_interface_text, "GetOffsetAtPoint", error, "iiu=>i", d_x, d_y, d_type, &retval);
609 * atspi_text_get_range_extents:
610 * @obj: a pointer to the #AtspiText object on which to operate.
611 * @start_offset: a #gint indicating the offset of the first text character for
612 * whom boundary information is requested.
613 * @end_offset: a #gint indicating the offset of the text character
614 * after the last character for whom boundary information is requested.
615 * @type: an #AtspiCoordType indicating the coordinate system to use
616 * for the returned values.
618 * Gets the bounding box for text within a range in an #AtspiText object.
620 * Returns: An #AtspiRect giving the position and size of the specified range
625 atspi_text_get_range_extents (AtspiText *obj,
631 dbus_int32_t d_start_offset = start_offset, d_end_offset = end_offset;
632 dbus_uint32_t d_type = type;
633 dbus_int32_t d_x, d_y, d_width, d_height;
636 ret.x = ret.y = ret.width = ret.height = -1;
639 return atspi_rect_copy (&ret);
641 _atspi_dbus_call (obj, atspi_interface_text, "GetRangeExtents", error, "iiu=>iiii", d_start_offset, d_end_offset, d_type, &d_x, &d_y, &d_width, &d_height);
646 ret.height = d_height;
647 return atspi_rect_copy (&ret);
651 * atspi_text_get_bounded_ranges:
652 * @obj: a pointer to the #AtspiText object on which to operate.
653 * @x: the 'starting' x coordinate of the bounding box.
654 * @y: the 'starting' y coordinate of the bounding box.
655 * @width: the x extent of the bounding box.
656 * @height: the y extent of the bounding box.
657 * @type: an #AccessibleCoordType indicating the coordinate system to use
658 * for the returned values.
659 * @clipTypeX: an #AtspiTextClipType indicating how to treat characters that
660 * intersect the bounding box's x extents.
661 * @clipTypeY: an #AtspiTextClipType indicating how to treat characters that
662 * intersect the bounding box's y extents.
664 * Gets the ranges of text from an #AtspiText object which lie within the
665 * bounds defined by (@x, @y) and (@x+@width, @y+@height).
667 * Returns: (transfer full) (element-type AtspiTextRange*): a null-terminated list of
668 * pointers to #AtspiTextRange structs detailing the bounded text.
671 atspi_text_get_bounded_ranges (AtspiText *obj,
677 AtspiTextClipType clipTypeX,
678 AtspiTextClipType clipTypeY,
681 dbus_int32_t d_x = x, d_y = y, d_width = width, d_height = height;
682 dbus_uint32_t d_type = type;
683 dbus_uint32_t d_clipTypeX = clipTypeX, d_clipTypeY = clipTypeY;
686 g_return_val_if_fail (obj != NULL, NULL);
688 _atspi_dbus_call (obj, atspi_interface_text, "GetBoundedRanges", error, "iiiiuuu=>a(iisv)", d_x, d_y, d_width, d_height, d_type, d_clipTypeX, d_clipTypeY, &range_seq);
694 * atspi_text_get_n_selections:
695 * @obj: a pointer to the #AtspiText object on which to operate.
697 * Gets the number of active non-contiguous selections for an
700 * Returns: a #gint indicating the current
701 * number of non-contiguous text selections active
702 * within an #AtspiText object.
705 atspi_text_get_n_selections (AtspiText *obj, GError **error)
707 dbus_int32_t retval = 0;
709 g_return_val_if_fail (obj != NULL, -1);
711 _atspi_dbus_call (obj, atspi_interface_text, "GetNSelections", error, "=>i", &retval);
717 * atspi_text_get_selection:
718 * @obj: a pointer to the #AtspiText object on which to operate.
719 * @selection_num: a #gint indicating which selection to query.
721 * Gets the bounds of the @selection_num-th active text selection for an
725 atspi_text_get_selection (AtspiText *obj,
729 dbus_int32_t d_selection_num = selection_num;
730 dbus_int32_t d_start_offset, d_end_offset;
731 AtspiRange *ret = g_new (AtspiRange, 1);
733 ret->start_offset = ret->end_offset = -1;
738 _atspi_dbus_call (obj, atspi_interface_text, "GetSelection", error, "i=>ii", d_selection_num, &d_start_offset, &d_end_offset);
740 ret->start_offset = d_start_offset;
741 ret->end_offset = d_end_offset;
746 * atspi_text_add_selection:
747 * @obj: a pointer to the #AtspiText object on which to operate.
748 * @start_offset: the starting offset of the desired new selection.
749 * @end_offset: the offset of the first character after the new selection.
751 * Selects some text (adds a text selection) in an #AtspiText object.
753 * Returns: #TRUE if successful, #FALSE otherwise.
756 atspi_text_add_selection (AtspiText *obj,
757 gint start_offset, gint end_offset,
760 dbus_int32_t d_start_offset = start_offset, d_end_offset = end_offset;
761 dbus_bool_t retval = FALSE;
763 _atspi_dbus_call (obj, atspi_interface_text, "AddSelection", error, "ii=>b", d_start_offset, d_end_offset, &retval);
769 * atspi_text_remove_selection:
770 * @obj: a pointer to the #AtspiText object on which to operate.
771 * @selection_num: a #gint indicating which text selection to remove.
773 * De-selects a text selection.
775 * Returns: #TRUE if successful, #FALSE otherwise.
778 atspi_text_remove_selection (AtspiText *obj,
782 dbus_int32_t d_selection_num = selection_num;
783 dbus_bool_t retval = FALSE;
785 g_return_val_if_fail (obj != NULL, FALSE);
787 _atspi_dbus_call (obj, atspi_interface_text, "RemoveSelection", error, "i=>b", d_selection_num, &retval);
793 * atspi_text_set_selection:
794 * @obj: a pointer to the #AtspiText object on which to operate.
795 * @selection_num: a zero-offset index indicating which text selection to modify.
796 * @start_offset: a #gint indicating the new starting offset for the selection.
797 * @end_offset: a #gint indicating the desired new offset of the first character
798 * after the selection.
800 * Changes the bounds of an existing #AtspiText text selection.
802 * Returns: #TRUE if successful, #FALSE otherwise.
805 atspi_text_set_selection (AtspiText *obj,
811 dbus_int32_t d_selection_num = selection_num, d_start_offset = start_offset, d_end_offset = end_offset;
812 dbus_bool_t retval = FALSE;
814 g_return_val_if_fail (obj != NULL, FALSE);
816 _atspi_dbus_call (obj, atspi_interface_text, "SetSelection", error, "iii=>b", d_selection_num, d_start_offset, d_end_offset, &retval);
822 atspi_text_base_init (AtspiText *klass)
827 atspi_text_get_type (void)
829 static GType type = 0;
832 static const GTypeInfo tinfo =
835 (GBaseInitFunc) atspi_text_base_init,
836 (GBaseFinalizeFunc) NULL,
839 type = g_type_register_static (G_TYPE_INTERFACE, "AtspiText", &tinfo, 0);