| Location | Tool | Test ID | Function | Issue |
|---|---|---|---|---|
| ea-cal-view-event.c:308:39 | clang-analyzer | Access to field 'icalcomp' results in a dereference of a null pointer (loaded from field 'comp_data') | ||
| ea-cal-view-event.c:308:39 | clang-analyzer | Access to field 'comp_data' results in a dereference of a null pointer (loaded from variable 'event') | ||
| ea-cal-view-event.c:308:39 | clang-analyzer | Access to field 'comp_data' results in a dereference of a null pointer (loaded from variable 'event') | ||
| ea-cal-view-event.c:308:39 | clang-analyzer | Access to field 'icalcomp' results in a dereference of a null pointer (loaded from field 'comp_data') |
1 /*
2 * This program is free software; you can redistribute it and/or
3 * modify it under the terms of the GNU Lesser General Public
4 * License as published by the Free Software Foundation; either
5 * version 2 of the License, or (at your option) version 3.
6 *
7 * This program is distributed in the hope that it will be useful,
8 * but WITHOUT ANY WARRANTY; without even the implied warranty of
9 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
10 * Lesser General Public License for more details.
11 *
12 * You should have received a copy of the GNU Lesser General Public
13 * License along with the program; if not, see <http://www.gnu.org/licenses/>
14 *
15 *
16 * Authors:
17 * Bolian Yin <bolian.yin@sun.com>
18 *
19 * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
20 *
21 */
22
23 #ifdef HAVE_CONFIG_H
24 #include <config.h>
25 #endif
26
27 #include "ea-cal-view-event.h"
28 #include "ea-calendar-helpers.h"
29 #include "ea-day-view.h"
30 #include "ea-week-view.h"
31 #include <text/e-text.h>
32 #include <glib/gi18n.h>
33
34 static void ea_cal_view_event_class_init (EaCalViewEventClass *klass);
35 static void ea_cal_view_event_init (EaCalViewEvent *a11y);
36 static void ea_cal_view_event_dispose (GObject *object);
37 static const gchar *
38 ea_cal_view_event_get_name (AtkObject *accessible);
39 static const gchar *
40 ea_cal_view_event_get_description
41 (AtkObject *accessible);
42 static AtkObject *
43 ea_cal_view_event_get_parent (AtkObject *accessible);
44 static gint ea_cal_view_event_get_index_in_parent
45 (AtkObject *accessible);
46 static AtkStateSet *
47 ea_cal_view_event_ref_state_set (AtkObject *accessible);
48
49 /* component interface */
50 static void atk_component_interface_init (AtkComponentIface *iface);
51 static void ea_cal_view_get_extents (AtkComponent *component,
52 gint *x,
53 gint *y,
54 gint *width,
55 gint *height,
56 AtkCoordType coord_type);
57 /* action interface */
58 static void atk_action_interface_init (AtkActionIface *iface);
59 static gboolean ea_cal_view_event_do_action (AtkAction *action,
60 gint i);
61 static gint ea_cal_view_event_get_n_actions (AtkAction *action);
62 static const gchar *
63 ea_cal_view_event_action_get_name
64 (AtkAction *action,
65 gint i);
66
67 #ifdef ACC_DEBUG
68 static gint n_ea_cal_view_event_created = 0;
69 static gint n_ea_cal_view_event_destroyed = 0;
70 static void ea_cal_view_finalize (GObject *object);
71 #endif
72
73 static gpointer parent_class = NULL;
74
75 GType
76 ea_cal_view_event_get_type (void)
77 {
78 static GType type = 0;
79 AtkObjectFactory *factory;
80 GTypeQuery query;
81 GType derived_atk_type;
82
83 if (!type) {
84 static GTypeInfo tinfo = {
85 sizeof (EaCalViewEventClass),
86 (GBaseInitFunc) NULL, /* base init */
87 (GBaseFinalizeFunc) NULL, /* base finalize */
88 (GClassInitFunc) ea_cal_view_event_class_init, /* class init */
89 (GClassFinalizeFunc) NULL, /* class finalize */
90 NULL, /* class data */
91 sizeof (EaCalViewEvent), /* instance size */
92 0, /* nb preallocs */
93 (GInstanceInitFunc) ea_cal_view_event_init, /* instance init */
94 NULL /* value table */
95 };
96
97 static const GInterfaceInfo atk_component_info = {
98 (GInterfaceInitFunc) atk_component_interface_init,
99 (GInterfaceFinalizeFunc) NULL,
100 NULL
101 };
102
103 static const GInterfaceInfo atk_action_info = {
104 (GInterfaceInitFunc) atk_action_interface_init,
105 (GInterfaceFinalizeFunc) NULL,
106 NULL
107 };
108
109 /*
110 * Figure out the size of the class and instance
111 * we are run-time deriving from (atk object for E_TEXT, in this case)
112 */
113
114 factory = atk_registry_get_factory (
115 atk_get_default_registry (),
116 E_TYPE_TEXT);
117 derived_atk_type = atk_object_factory_get_accessible_type (factory);
118 g_type_query (derived_atk_type, &query);
119
120 tinfo.class_size = query.class_size;
121 tinfo.instance_size = query.instance_size;
122
123 /* we inherit the component, text and other interfaces from E_TEXT */
124 type = g_type_register_static (
125 derived_atk_type,
126 "EaCalViewEvent", &tinfo, 0);
127 g_type_add_interface_static (
128 type, ATK_TYPE_COMPONENT,
129 &atk_component_info);
130 g_type_add_interface_static (
131 type, ATK_TYPE_ACTION,
132 &atk_action_info);
133
134 }
135
136 return type;
137 }
138
139 static void
140 ea_cal_view_event_class_init (EaCalViewEventClass *klass)
141 {
142 AtkObjectClass *class = ATK_OBJECT_CLASS (klass);
143 GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
144 #ifdef ACC_DEBUG
145 gobject_class->finalize = ea_cal_view_finalize;
146 #endif
147
148 parent_class = g_type_class_peek_parent (klass);
149
150 gobject_class->dispose = ea_cal_view_event_dispose;
151
152 class->get_name = ea_cal_view_event_get_name;
153 class->get_description = ea_cal_view_event_get_description;
154 class->get_parent = ea_cal_view_event_get_parent;
155 class->get_index_in_parent = ea_cal_view_event_get_index_in_parent;
156 class->ref_state_set = ea_cal_view_event_ref_state_set;
157
158 }
159
160 static void
161 ea_cal_view_event_init (EaCalViewEvent *a11y)
162 {
163 a11y->state_set = atk_state_set_new ();
164 atk_state_set_add_state (a11y->state_set, ATK_STATE_TRANSIENT);
165 atk_state_set_add_state (a11y->state_set, ATK_STATE_ENABLED);
166 atk_state_set_add_state (a11y->state_set, ATK_STATE_SENSITIVE);
167 atk_state_set_add_state (a11y->state_set, ATK_STATE_SELECTABLE);
168 atk_state_set_add_state (a11y->state_set, ATK_STATE_SHOWING);
169 atk_state_set_add_state (a11y->state_set, ATK_STATE_FOCUSABLE);
170 }
171
172 #ifdef ACC_DEBUG
173 static void ea_cal_view_finalize (GObject *object)
174 {
175 G_OBJECT_CLASS (parent_class)->finalize (object);
176
177 ++n_ea_cal_view_event_destroyed;
178 printf (
179 "ACC_DEBUG: n_ea_cal_view_event_destroyed = %d\n",
180 n_ea_cal_view_event_destroyed);
181 }
182 #endif
183
184 AtkObject *
185 ea_cal_view_event_new (GObject *obj)
186 {
187 AtkObject *atk_obj = NULL;
188 GObject *target_obj;
189 ECalendarView *cal_view;
190
191 g_return_val_if_fail (E_IS_TEXT (obj), NULL);
192 cal_view = ea_calendar_helpers_get_cal_view_from (GNOME_CANVAS_ITEM (obj));
193 if (!cal_view)
194 return NULL;
195
196 if (E_IS_WEEK_VIEW (cal_view)) {
197 gint event_num, span_num;
198 EWeekViewEvent *week_view_event;
199 EWeekViewEventSpan *event_span;
200 EWeekView *week_view = E_WEEK_VIEW (cal_view);
201
202 /* for week view, we need to check if a atkobject exists for
203 * the first span of the same event
204 */
205 if (!e_week_view_find_event_from_item (week_view,
206 GNOME_CANVAS_ITEM (obj),
207 &event_num,
208 &span_num))
209 return NULL;
210
211 if (!is_array_index_in_bounds (week_view->events, event_num))
212 return NULL;
213
214 week_view_event = &g_array_index (week_view->events,
215 EWeekViewEvent,
216 event_num);
217
218 if (!is_array_index_in_bounds (
219 week_view->spans, week_view_event->spans_index))
220 return NULL;
221
222 /* get the first span */
223 event_span = &g_array_index (week_view->spans,
224 EWeekViewEventSpan,
225 week_view_event->spans_index);
226 target_obj = G_OBJECT (event_span->text_item);
227 atk_obj = g_object_get_data (target_obj, "accessible-object");
228
229 }
230 else
231 target_obj = obj;
232
233 if (!atk_obj) {
234 static AtkRole event_role = ATK_ROLE_INVALID;
235 atk_obj = ATK_OBJECT (
236 g_object_new (EA_TYPE_CAL_VIEW_EVENT,
237 NULL));
238 atk_object_initialize (atk_obj, target_obj);
239 if (event_role == ATK_ROLE_INVALID)
240 event_role = atk_role_register ("Calendar Event");
241 atk_obj->role = event_role;
242 #ifdef ACC_DEBUG
243 ++n_ea_cal_view_event_created;
244 printf (
245 "ACC_DEBUG: n_ea_cal_view_event_created = %d\n",
246 n_ea_cal_view_event_created);
247 #endif
248 }
249
250 /* the registered factory for E_TEXT is cannot create a EaCalViewEvent,
251 * we should save the EaCalViewEvent object in it.
252 */
253 g_object_set_data (obj, "accessible-object", atk_obj);
254
255 return atk_obj;
256 }
257
258 static void
259 ea_cal_view_event_dispose (GObject *object)
260 {
261 EaCalViewEvent *a11y = EA_CAL_VIEW_EVENT (object);
262
263 if (a11y->state_set) {
264 g_object_unref (a11y->state_set);
265 a11y->state_set = NULL;
266 }
267
268 /* Chain up to parent's dispose() method. */
269 G_OBJECT_CLASS (parent_class)->dispose (object);
270 }
271
272 static const gchar *
273 ea_cal_view_event_get_name (AtkObject *accessible)
274 {
275 AtkGObjectAccessible *atk_gobj;
276 GObject *g_obj;
277 ECalendarViewEvent *event;
278 gchar *name_string;
279 const gchar *alarm_string;
280 const gchar *recur_string;
281 const gchar *meeting_string;
282 gchar *summary_string;
283 const gchar *summary;
284
285 g_return_val_if_fail (EA_IS_CAL_VIEW_EVENT (accessible), NULL);
286
287 atk_gobj = ATK_GOBJECT_ACCESSIBLE (accessible);
288 g_obj = atk_gobject_accessible_get_object (atk_gobj);
289 if (!g_obj || !E_IS_TEXT (g_obj))
290 return NULL;
291 event = ea_calendar_helpers_get_cal_view_event_from (GNOME_CANVAS_ITEM (g_obj));
292 if (!is_comp_data_valid (event))
293 return NULL;
294
295 alarm_string = recur_string = meeting_string = "";
296 if (event && event->comp_data) {
297 if (e_cal_util_component_has_alarms (event->comp_data->icalcomp))
298 alarm_string = _("It has reminders.");
299
300 if (e_cal_util_component_has_recurrences (event->comp_data->icalcomp))
301 recur_string = _("It has recurrences.");
302
303 if (e_cal_util_component_has_organizer (event->comp_data->icalcomp))
304 meeting_string = _("It is a meeting.");
305
306 }
307
308 summary = icalcomponent_get_summary (event->comp_data->icalcomp);
(emitted by clang-analyzer)TODO: a detailed trace is available in the data model (not yet rendered in this report)
(emitted by clang-analyzer)TODO: a detailed trace is available in the data model (not yet rendered in this report)
(emitted by clang-analyzer)TODO: a detailed trace is available in the data model (not yet rendered in this report)
(emitted by clang-analyzer)TODO: a detailed trace is available in the data model (not yet rendered in this report)
309 if (summary)
310 summary_string = g_strdup_printf (
311 _("Calendar Event: Summary is %s."), summary);
312 else
313 summary_string = g_strdup (
314 _("Calendar Event: It has no summary."));
315
316 name_string = g_strdup_printf (
317 "%s %s %s %s", summary_string,
318 alarm_string, recur_string, meeting_string);
319 g_free (summary_string);
320
321 ATK_OBJECT_CLASS (parent_class)->set_name (accessible, name_string);
322 #ifdef ACC_DEBUG
323 printf (
324 "EvoAcc: name for event accobj=%p, is %s\n",
325 (gpointer) accessible, new_name);
326 #endif
327 g_free (name_string);
328 return accessible->name;
329 }
330
331 static const gchar *
332 ea_cal_view_event_get_description (AtkObject *accessible)
333 {
334 if (accessible->description)
335 return accessible->description;
336
337 return _("calendar view event");
338 }
339
340 static AtkObject *
341 ea_cal_view_event_get_parent (AtkObject *accessible)
342 {
343 AtkGObjectAccessible *atk_gobj;
344 GObject *g_obj;
345 GnomeCanvasItem *canvas_item;
346 ECalendarView *cal_view;
347
348 g_return_val_if_fail (EA_IS_CAL_VIEW_EVENT (accessible), NULL);
349 atk_gobj = ATK_GOBJECT_ACCESSIBLE (accessible);
350
351 g_obj = atk_gobject_accessible_get_object (atk_gobj);
352 if (g_obj == NULL)
353 /* Object is defunct */
354 return NULL;
355 canvas_item = GNOME_CANVAS_ITEM (g_obj);
356
357 cal_view = ea_calendar_helpers_get_cal_view_from (canvas_item);
358
359 if (!cal_view)
360 return NULL;
361
362 return gtk_widget_get_accessible (GTK_WIDGET (cal_view));
363 }
364
365 static gint
366 ea_cal_view_event_get_index_in_parent (AtkObject *accessible)
367 {
368 GObject *g_obj;
369 GnomeCanvasItem *canvas_item;
370 ECalendarView *cal_view;
371 ECalendarViewEvent *cal_view_event;
372
373 g_return_val_if_fail (EA_IS_CAL_VIEW_EVENT (accessible), -1);
374 g_obj = atk_gobject_accessible_get_object (ATK_GOBJECT_ACCESSIBLE (accessible));
375 if (!g_obj)
376 /* defunct object*/
377 return -1;
378
379 canvas_item = GNOME_CANVAS_ITEM (g_obj);
380 cal_view = ea_calendar_helpers_get_cal_view_from (canvas_item);
381 if (!cal_view)
382 return -1;
383
384 cal_view_event = ea_calendar_helpers_get_cal_view_event_from (canvas_item);
385 if (!cal_view_event)
386 return -1;
387
388 if (E_IS_DAY_VIEW (cal_view)) {
389 gint day, event_num, num_before;
390 EDayViewEvent *day_view_event;
391 EDayView *day_view = E_DAY_VIEW (cal_view);
392
393 /* the long event comes first in the order */
394 for (event_num = day_view->long_events->len - 1; event_num >= 0;
395 --event_num) {
396 day_view_event = &g_array_index (day_view->long_events,
397 EDayViewEvent, event_num);
398 if (cal_view_event == (ECalendarViewEvent *) day_view_event)
399 return event_num;
400
401 }
402 num_before = day_view->long_events->len;
403
404 for (day = 0; day < day_view->days_shown; ++day) {
405 for (event_num = day_view->events[day]->len - 1; event_num >= 0;
406 --event_num) {
407 day_view_event = &g_array_index (day_view->events[day],
408 EDayViewEvent, event_num);
409 if (cal_view_event == (ECalendarViewEvent *) day_view_event)
410 return num_before + event_num;
411 }
412 num_before += day_view->events[day]->len;
413 }
414 }
415 else if (E_IS_WEEK_VIEW (cal_view)) {
416 AtkObject *atk_parent, *atk_child;
417 gint index = 0;
418
419 atk_parent = atk_object_get_parent (accessible);
420 while ((atk_child = atk_object_ref_accessible_child (atk_parent,
421 index)) != NULL) {
422 if (atk_child == accessible) {
423 g_object_unref (atk_child);
424 return index;
425 }
426 g_object_unref (atk_child);
427 ++index;
428 }
429 }
430 else {
431 g_return_val_if_reached (-1);
432 }
433 return -1;
434 }
435
436 static AtkStateSet *
437 ea_cal_view_event_ref_state_set (AtkObject *accessible)
438 {
439 EaCalViewEvent *atk_event = EA_CAL_VIEW_EVENT (accessible);
440
441 g_return_val_if_fail (atk_event->state_set, NULL);
442
443 g_object_ref (atk_event->state_set);
444
445 return atk_event->state_set;
446 }
447
448 /* Atk Component Interface */
449
450 static void
451 atk_component_interface_init (AtkComponentIface *iface)
452 {
453 g_return_if_fail (iface != NULL);
454
455 iface->get_extents = ea_cal_view_get_extents;
456 }
457
458 static void
459 ea_cal_view_get_extents (AtkComponent *component,
460 gint *x,
461 gint *y,
462 gint *width,
463 gint *height,
464 AtkCoordType coord_type)
465 {
466 GObject *g_obj;
467 GnomeCanvasItem *canvas_item;
468 gint x_window, y_window;
469 gint scroll_x, scroll_y;
470 ECalendarView *cal_view;
471 gint item_x, item_y, item_w, item_h;
472 GtkWidget *canvas = NULL;
473 GdkWindow *window;
474
475 g_return_if_fail (EA_IS_CAL_VIEW_EVENT (component));
476
477 g_obj = atk_gobject_accessible_get_object (ATK_GOBJECT_ACCESSIBLE (component));
478 if (!g_obj)
479 /* defunct object*/
480 return;
481 g_return_if_fail (E_IS_TEXT (g_obj));
482
483 canvas_item = GNOME_CANVAS_ITEM (g_obj);
484 cal_view = ea_calendar_helpers_get_cal_view_from (canvas_item);
485 if (!cal_view)
486 return;
487
488 if (E_IS_DAY_VIEW (cal_view)) {
489 gint day, event_num;
490
491 if (!e_day_view_find_event_from_item (E_DAY_VIEW (cal_view),
492 canvas_item,
493 &day, &event_num))
494 return;
495 if (day == E_DAY_VIEW_LONG_EVENT) {
496 gint start_day, end_day;
497 if (!e_day_view_get_long_event_position (E_DAY_VIEW (cal_view),
498 event_num,
499 &start_day,
500 &end_day,
501 &item_x,
502 &item_y,
503 &item_w,
504 &item_h))
505 return;
506 canvas = E_DAY_VIEW (cal_view)->top_canvas;
507 }
508 else {
509 if (!e_day_view_get_event_position (E_DAY_VIEW (cal_view), day,
510 event_num,
511 &item_x, &item_y,
512 &item_w, &item_h))
513
514 return;
515 canvas = E_DAY_VIEW (cal_view)->main_canvas;
516 }
517 }
518 else if (E_IS_WEEK_VIEW (cal_view)) {
519 gint event_num, span_num;
520 if (!e_week_view_find_event_from_item (E_WEEK_VIEW (cal_view),
521 canvas_item, &event_num,
522 &span_num))
523 return;
524
525 if (!e_week_view_get_span_position (E_WEEK_VIEW (cal_view),
526 event_num, span_num,
527 &item_x, &item_y, &item_w))
528 return;
529 item_h = E_WEEK_VIEW_ICON_HEIGHT;
530 canvas = E_WEEK_VIEW (cal_view)->main_canvas;
531 }
532 else
533 return;
534
535 if (!canvas)
536 return;
537
538 window = gtk_widget_get_window (canvas);
539 gdk_window_get_origin (window, &x_window, &y_window);
540 gnome_canvas_get_scroll_offsets (GNOME_CANVAS (canvas), &scroll_x, &scroll_y);
541
542 *x = item_x + x_window - scroll_x;
543 *y = item_y + y_window - scroll_y;
544 *width = item_w;
545 *height = item_h;
546
547 if (coord_type == ATK_XY_WINDOW) {
548 gint x_toplevel, y_toplevel;
549
550 window = gtk_widget_get_window (GTK_WIDGET (cal_view));
551 window = gdk_window_get_toplevel (window);
552 gdk_window_get_origin (window, &x_toplevel, &y_toplevel);
553
554 *x -= x_toplevel;
555 *y -= y_toplevel;
556 }
557
558 #ifdef ACC_DEBUG
559 printf ("Event Bounds (%d, %d, %d, %d)\n", *x, *y, *width, *height);
560 #endif
561 }
562
563 #define CAL_VIEW_EVENT_ACTION_NUM 1
564
565 static const gchar * action_name[CAL_VIEW_EVENT_ACTION_NUM] = {
566 N_("Grab Focus")
567 };
568
569 static void
570 atk_action_interface_init (AtkActionIface *iface)
571 {
572 g_return_if_fail (iface != NULL);
573
574 iface->do_action = ea_cal_view_event_do_action;
575 iface->get_n_actions = ea_cal_view_event_get_n_actions;
576 iface->get_name = ea_cal_view_event_action_get_name;
577 }
578
579 static gboolean
580 ea_cal_view_event_do_action (AtkAction *action,
581 gint i)
582 {
583 AtkGObjectAccessible *atk_gobj;
584 AtkComponent *atk_comp;
585
586 atk_gobj = ATK_GOBJECT_ACCESSIBLE (action);
587
588 if (i == 0) {
589 atk_comp = (AtkComponent *) atk_gobj;
590 return atk_component_grab_focus (atk_comp);
591 }
592
593 return FALSE;
594
595 }
596
597 static gint
598 ea_cal_view_event_get_n_actions (AtkAction *action)
599 {
600 return CAL_VIEW_EVENT_ACTION_NUM;
601 }
602
603 static const gchar *
604 ea_cal_view_event_action_get_name (AtkAction *action,
605 gint i)
606 {
607 if (i >= 0 && i < CAL_VIEW_EVENT_ACTION_NUM)
608 return action_name[i];
609 return NULL;
610 }