Fixed refcounting issues with interface server
[platform/core/uifw/at-spi2-atk.git] / libspi / text.c
1 /*
2  * AT-SPI - Assistive Technology Service Provider Interface
3  * (Gnome Accessibility Project; http://developer.gnome.org/projects/gap)
4  *
5  * Copyright 2001 Sun Microsystems Inc.
6  *
7  * This library is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Library General Public
9  * License as published by the Free Software Foundation; either
10  * version 2 of the License, or (at your option) any later version.
11  *
12  * This library is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15  * Library General Public License for more details.
16  *
17  * You should have received a copy of the GNU Library General Public
18  * License along with this library; if not, write to the
19  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
20  * Boston, MA 02111-1307, USA.
21  */
22
23 /*
24  * component.c : bonobo wrapper for accessible component implementation
25  *
26  */
27 #include <config.h>
28 #include <bonobo/Bonobo.h>
29
30 #include <stdio.h>
31
32 /*
33  * This pulls the CORBA definitions for the "Accessibility::Accessible" server
34  */
35 #include <libspi/Accessibility.h>
36
37 /*
38  * This pulls the definition of the Text bonobo object
39  */
40 #include "text.h"
41
42 /*
43  * Static function declarations
44  */
45
46 static void
47 text_class_init (TextClass *klass);
48 static void
49 text_init (Text *text);
50 static void
51 text_finalize (GObject *obj);
52 static CORBA_string
53 impl_getText (PortableServer_Servant _servant,
54               const CORBA_long startOffset,
55               const CORBA_long endOffset,
56               CORBA_Environment * ev);
57 CORBA_string
58 impl_getTextAfterOffset (PortableServer_Servant _servant,
59                          const CORBA_long offset,
60                          const
61                          Accessibility_TEXT_BOUNDARY_TYPE
62                          type, CORBA_long * startOffset,
63                          CORBA_long * endOffset,
64                          CORBA_Environment * ev);
65 static CORBA_string
66 impl_getTextAtOffset (PortableServer_Servant _servant,
67                       const CORBA_long offset,
68                       const Accessibility_TEXT_BOUNDARY_TYPE
69                       type, CORBA_long * startOffset,
70                       CORBA_long * endOffset,
71                       CORBA_Environment * ev);
72 static CORBA_wchar
73 impl_getCharacterAtOffset (PortableServer_Servant _servant,
74                            const CORBA_long offset,
75                            CORBA_Environment * ev);
76 static CORBA_string
77 impl_getTextBeforeOffset (PortableServer_Servant _servant,
78                           const CORBA_long offset,
79                           const
80                           Accessibility_TEXT_BOUNDARY_TYPE
81                           type, CORBA_long * startOffset,
82                           CORBA_long * endOffset,
83                           CORBA_Environment * ev);
84 static CORBA_long
85 impl__get_caretOffset (PortableServer_Servant _servant,
86                      CORBA_Environment * ev);
87 static CORBA_string
88 impl_getAttributes (PortableServer_Servant _servant,
89                        const CORBA_long offset,
90                        CORBA_long * startOffset,
91                        CORBA_long * endOffset,
92                        CORBA_Environment * ev);
93 static void 
94 impl_getCharacterExtents (PortableServer_Servant _servant,
95                           const CORBA_long offset, CORBA_long * x,
96                           CORBA_long * y, CORBA_long * width,
97                           CORBA_long * height,
98                           const CORBA_short coordType,
99                           CORBA_Environment * ev);
100 static CORBA_long
101 impl__get_characterCount (PortableServer_Servant _servant,
102                         CORBA_Environment * ev);
103 static CORBA_long
104 impl_getOffsetAtPoint (PortableServer_Servant _servant,
105                        const CORBA_long x, const CORBA_long y,
106                        const CORBA_short coordType,
107                        CORBA_Environment * ev);
108 static CORBA_long
109 impl_getNSelections (PortableServer_Servant _servant,
110                      CORBA_Environment * ev);
111 static void 
112 impl_getSelection (PortableServer_Servant _servant,
113                    const CORBA_long selectionNum,
114                    CORBA_long * startOffset, CORBA_long * endOffset,
115                    CORBA_Environment * ev);
116 static CORBA_boolean
117 impl_addSelection (PortableServer_Servant _servant,
118                    const CORBA_long startOffset,
119                    const CORBA_long endOffset,
120                    CORBA_Environment * ev);
121 static CORBA_boolean
122 impl_removeSelection (PortableServer_Servant _servant,
123                       const CORBA_long selectionNum,
124                       CORBA_Environment * ev);
125 static CORBA_boolean
126 impl_setSelection (PortableServer_Servant _servant,
127                    const CORBA_long selectionNum,
128                    const CORBA_long startOffset,
129                    const CORBA_long endOffset,
130                    CORBA_Environment * ev);
131 static CORBA_boolean
132 impl_setCaretOffset (PortableServer_Servant _servant,
133                      const CORBA_long value,
134                      CORBA_Environment * ev);
135   
136  
137
138 static GObjectClass *parent_class;
139
140 GType
141 text_get_type (void)
142 {
143   static GType type = 0;
144
145   if (!type) {
146     static const GTypeInfo tinfo = {
147       sizeof (TextClass),
148       (GBaseInitFunc) NULL,
149       (GBaseFinalizeFunc) NULL,
150       (GClassInitFunc) text_class_init,
151       (GClassFinalizeFunc) NULL,
152       NULL, /* class data */
153       sizeof (Text),
154       0, /* n preallocs */
155       (GInstanceInitFunc) text_init,
156                         NULL /* value table */
157     };
158
159     /*
160      * Bonobo_type_unique auto-generates a load of
161      * CORBA structures for us. All derived types must
162      * use bonobo_type_unique.
163      */
164     type = bonobo_type_unique (
165                                BONOBO_OBJECT_TYPE,
166                                POA_Accessibility_Text__init,
167                                NULL,
168                                G_STRUCT_OFFSET (TextClass, epv),
169                                &tinfo,
170                                "AccessibleText");
171   }
172
173   return type;
174 }
175
176 static void
177 text_class_init (TextClass *klass)
178 {
179   GObjectClass * object_class = (GObjectClass *) klass;
180   POA_Accessibility_Text__epv *epv = &klass->epv;
181   parent_class = g_type_class_peek_parent (klass);
182
183   object_class->finalize = text_finalize;
184
185
186   /* Initialize epv table */
187
188   epv->getText = impl_getText;
189   epv->getTextAfterOffset = impl_getTextAfterOffset;
190   epv->getCharacterAtOffset = impl_getCharacterAtOffset;
191   epv->getTextAtOffset = impl_getTextAtOffset;
192   epv->getTextBeforeOffset = impl_getTextBeforeOffset;
193   epv->_get_caretOffset = impl__get_caretOffset;
194   epv->getAttributes = impl_getAttributes;
195   epv->getCharacterExtents = impl_getCharacterExtents;
196   epv->_get_characterCount = impl__get_characterCount;
197   epv->getOffsetAtPoint = impl_getOffsetAtPoint;
198   epv->getNSelections = impl_getNSelections;
199   epv->getSelection = impl_getSelection;
200   epv->addSelection = impl_addSelection;
201   epv->removeSelection = impl_removeSelection;
202   epv->setSelection = impl_setSelection;
203   epv->setCaretOffset = impl_setCaretOffset;
204 }
205
206 static void
207 text_init (Text *text)
208 {
209 }
210
211 static void
212 text_finalize (GObject *obj)
213 {
214   Text *text = TEXT (obj);
215   g_object_unref (text->atko);
216   text->atko = NULL;
217   parent_class->finalize (obj);
218 }
219
220 Text *
221 text_interface_new (AtkObject *obj)
222 {
223   Text *new_text = 
224     TEXT(g_object_new (TEXT_TYPE, NULL));
225   new_text->atko = obj;
226   g_object_ref (obj);
227   return new_text;
228 }
229
230
231
232 static CORBA_string
233 impl_getText (PortableServer_Servant _servant,
234               const CORBA_long startOffset,
235               const CORBA_long endOffset,
236               CORBA_Environment * ev)
237 {
238   Text *text = TEXT (bonobo_object_from_servant (_servant));
239   gchar *txt;
240   CORBA_char *rv;
241
242   txt = atk_text_get_text (ATK_TEXT(text->atko),
243                        (gint) startOffset, (gint) endOffset);
244   rv = CORBA_string_dup (txt);
245   g_free (txt);
246   return rv;
247 }
248
249
250
251 CORBA_string
252 impl_getTextAfterOffset (PortableServer_Servant _servant,
253                          const CORBA_long offset,
254                          const
255                          Accessibility_TEXT_BOUNDARY_TYPE
256                          type, CORBA_long * startOffset,
257                          CORBA_long * endOffset,
258                          CORBA_Environment * ev)
259 {
260   Text *text = TEXT (bonobo_object_from_servant (_servant));
261   gchar *txt;
262   CORBA_char *rv;
263
264   txt = atk_text_get_text_after_offset (ATK_TEXT(text->atko),
265                                     (gint) offset, (AtkTextBoundary) type,
266                                     (gint *) startOffset, (gint *) endOffset);
267   rv = CORBA_string_dup (txt);
268   g_free (txt);
269   return rv;
270 }
271
272
273
274 static CORBA_string
275 impl_getTextAtOffset (PortableServer_Servant _servant,
276                       const CORBA_long offset,
277                       const Accessibility_TEXT_BOUNDARY_TYPE
278                       type, CORBA_long * startOffset,
279                       CORBA_long * endOffset,
280                       CORBA_Environment * ev)
281 {
282   Text *text = TEXT (bonobo_object_from_servant (_servant));
283   gchar *txt;
284   CORBA_char *rv;
285
286   txt = atk_text_get_text_at_offset (ATK_TEXT(text->atko),
287                                     (gint) offset, (AtkTextBoundary) type,
288                                     (gint *) startOffset, (gint *) endOffset);
289   rv = CORBA_string_dup (txt);
290   g_free (txt);
291   return rv;
292 }
293
294
295
296 static CORBA_wchar
297 impl_getCharacterAtOffset (PortableServer_Servant _servant,
298                            const CORBA_long offset,
299                            CORBA_Environment * ev)
300 {
301   Text *text = TEXT (bonobo_object_from_servant (_servant));
302   return (CORBA_wchar)
303     atk_text_get_character_at_offset (ATK_TEXT(text->atko), (gint) offset);
304 }
305
306
307 static CORBA_string
308 impl_getTextBeforeOffset (PortableServer_Servant _servant,
309                           const CORBA_long offset,
310                           const
311                           Accessibility_TEXT_BOUNDARY_TYPE
312                           type, CORBA_long * startOffset,
313                           CORBA_long * endOffset,
314                           CORBA_Environment * ev)
315 {
316   Text *text = TEXT (bonobo_object_from_servant (_servant));
317   gchar *txt;
318   CORBA_char *rv;
319
320   txt = atk_text_get_text_before_offset (ATK_TEXT(text->atko),
321                                     (gint) offset, (AtkTextBoundary) type,
322                                     (gint *) startOffset, (gint *) endOffset);
323   rv = CORBA_string_dup (txt);
324   g_free (txt);
325 }
326
327
328 static CORBA_long
329 impl__get_caretOffset (PortableServer_Servant _servant,
330                      CORBA_Environment * ev)
331 {
332   Text *text = TEXT (bonobo_object_from_servant (_servant));
333   return (CORBA_long)
334     atk_text_get_caret_offset (ATK_TEXT(text->atko));
335 }
336
337
338
339 static CORBA_string
340 impl_getAttributes (PortableServer_Servant _servant,
341                        const CORBA_long offset,
342                        CORBA_long * startOffset,
343                        CORBA_long * endOffset,
344                        CORBA_Environment * ev)
345 {
346   Text *text = TEXT (bonobo_object_from_servant (_servant));
347   g_print ("getAttributes not implemented.\n");
348 }
349
350
351
352 static void 
353 impl_getCharacterExtents (PortableServer_Servant _servant,
354                           const CORBA_long offset, CORBA_long * x,
355                           CORBA_long * y, CORBA_long * width,
356                           CORBA_long * height,
357                           const CORBA_short coordType,
358                           CORBA_Environment * ev)
359 {
360   Text *text = TEXT (bonobo_object_from_servant (_servant));
361   atk_text_get_character_extents (ATK_TEXT(text->atko), (gint) offset,
362                                   (gint *) x, (gint *) y, (gint *) width, (gint *) height,
363                                   (AtkCoordType) coordType);
364 }
365
366
367
368 static CORBA_long
369 impl__get_characterCount (PortableServer_Servant _servant,
370                         CORBA_Environment * ev)
371 {
372   Text *text = TEXT (bonobo_object_from_servant (_servant));
373   return (CORBA_long)
374     atk_text_get_character_count (ATK_TEXT(text->atko));
375 }
376
377
378
379 static CORBA_long
380 impl_getOffsetAtPoint (PortableServer_Servant _servant,
381                        const CORBA_long x, const CORBA_long y,
382                        const CORBA_short coordType,
383                        CORBA_Environment * ev)
384 {
385   Text *text = TEXT (bonobo_object_from_servant (_servant));
386   return (CORBA_long)
387     atk_text_get_offset_at_point (ATK_TEXT(text->atko),
388                                   (gint) x, (gint) y, (AtkCoordType) coordType);
389 }
390
391
392
393 static CORBA_long
394 impl_getNSelections (PortableServer_Servant _servant,
395                      CORBA_Environment * ev)
396 {
397   Text *text = TEXT (bonobo_object_from_servant (_servant));
398   return (CORBA_long)
399     atk_text_get_n_selections (ATK_TEXT(text->atko));
400 }
401
402
403
404 static void 
405 impl_getSelection (PortableServer_Servant _servant,
406                    const CORBA_long selectionNum,
407                    CORBA_long * startOffset, CORBA_long * endOffset,
408                    CORBA_Environment * ev)
409 {
410   Text *text = TEXT (bonobo_object_from_servant (_servant));
411   atk_text_get_selection (ATK_TEXT(text->atko), (gint) selectionNum,
412                           (gint *) startOffset, (gint *) endOffset);
413 }
414
415
416
417 static CORBA_boolean
418 impl_addSelection (PortableServer_Servant _servant,
419                    const CORBA_long startOffset,
420                    const CORBA_long endOffset,
421                    CORBA_Environment * ev)
422 {
423   Text *text = TEXT (bonobo_object_from_servant (_servant));
424   return (CORBA_boolean)
425     atk_text_add_selection (ATK_TEXT(text->atko),
426                             (gint) startOffset, (gint) endOffset);
427 }
428
429
430
431 static CORBA_boolean
432 impl_removeSelection (PortableServer_Servant _servant,
433                       const CORBA_long selectionNum,
434                       CORBA_Environment * ev)
435 {
436   Text *text = TEXT (bonobo_object_from_servant (_servant));
437   return (CORBA_boolean)
438     atk_text_remove_selection (ATK_TEXT(text->atko), (gint) selectionNum);
439 }
440
441
442
443 static CORBA_boolean
444 impl_setSelection (PortableServer_Servant _servant,
445                    const CORBA_long selectionNum,
446                    const CORBA_long startOffset,
447                    const CORBA_long endOffset,
448                    CORBA_Environment * ev)
449 {
450   Text *text = TEXT (bonobo_object_from_servant (_servant));
451   return (CORBA_boolean)
452     atk_text_set_selection (ATK_TEXT(text->atko),
453                             (gint) selectionNum, (gint) startOffset, (gint) endOffset);
454 }
455
456
457
458 static CORBA_boolean
459 impl_setCaretOffset (PortableServer_Servant _servant,
460                      const CORBA_long value,
461                      CORBA_Environment * ev)
462 {
463   Text *text = TEXT (bonobo_object_from_servant (_servant));
464   return (CORBA_boolean)
465     atk_text_set_caret_offset (ATK_TEXT(text->atko), (gint) value);
466 }
467
468
469
470 static void 
471 impl_getRowColAtOffset (PortableServer_Servant _servant,
472                         const CORBA_long offset, CORBA_long * row,
473                         CORBA_long * column, CORBA_Environment * ev)
474 {
475   Text *text = TEXT (bonobo_object_from_servant (_servant));
476 }
477