aboutsummaryrefslogtreecommitdiffstats
path: root/calendar/cal-client/cal-client.c
blob: f1e60be3f313e90a10d4c4e137ff1f6a719fc412 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/* Evolution calendar client
 *
 * Copyright (C) 2000 Helix Code, Inc.
 *
 * Author: Federico Mena-Quintero <federico@helixcode.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
 */

#include <config.h>
#include <gtk/gtksignal.h>

#ifdef USING_OAF
#include <liboaf/liboaf.h>
#else
#include <libgnorba/gnorba.h>
#endif

#include "cal-client.h"
#include "cal-listener.h"

#include "cal-util/icalendar-save.h"
#include "cal-util/icalendar.h"



/* Loading state for the calendar client */
typedef enum {
    LOAD_STATE_NOT_LOADED,
    LOAD_STATE_LOADING,
    LOAD_STATE_LOADED
} LoadState;

/* Private part of the CalClient structure */
typedef struct {
    /* Load state to avoid multiple loads */
    LoadState load_state;

    /* The calendar factory we are contacting */
    Evolution_Calendar_CalFactory factory;

    /* Our calendar listener */
    CalListener *listener;

    /* The calendar client interface object we are contacting */
    Evolution_Calendar_Cal cal;
} CalClientPrivate;



/* Signal IDs */
enum {
    CAL_LOADED,
    OBJ_UPDATED,
    OBJ_REMOVED,
    LAST_SIGNAL
};

static void cal_client_class_init (CalClientClass *class);
static void cal_client_init (CalClient *client);
static void cal_client_destroy (GtkObject *object);

static guint cal_client_signals[LAST_SIGNAL];

static GtkObjectClass *parent_class;



/**
 * cal_client_get_type:
 * @void:
 *
 * Registers the #CalClient class if necessary, and returns the type ID assigned
 * to it.
 *
 * Return value: The type ID of the #CalClient class.
 **/
GtkType
cal_client_get_type (void)
{
    static GtkType cal_client_type = 0;

    if (!cal_client_type) {
        static const GtkTypeInfo cal_client_info = {
            "CalClient",
            sizeof (CalClient),
            sizeof (CalClientClass),
            (GtkClassInitFunc) cal_client_class_init,
            (GtkObjectInitFunc) cal_client_init,
            NULL, /* reserved_1 */
            NULL, /* reserved_2 */
            (GtkClassInitFunc) NULL
        };

        cal_client_type = gtk_type_unique (GTK_TYPE_OBJECT, &cal_client_info);
    }

    return cal_client_type;
}

/* Class initialization function for the calendar client */
static void
cal_client_class_init (CalClientClass *class)
{
    GtkObjectClass *object_class;

    object_class = (GtkObjectClass *) class;

    parent_class = gtk_type_class (GTK_TYPE_OBJECT);

    cal_client_signals[CAL_LOADED] =
        gtk_signal_new ("cal_loaded",
                GTK_RUN_FIRST,
                object_class->type,
                GTK_SIGNAL_OFFSET (CalClientClass, cal_loaded),
                gtk_marshal_NONE__ENUM,
                GTK_TYPE_NONE, 1,
                GTK_TYPE_ENUM);
    cal_client_signals[OBJ_UPDATED] =
        gtk_signal_new ("obj_updated",
                GTK_RUN_FIRST,
                object_class->type,
                GTK_SIGNAL_OFFSET (CalClientClass, obj_updated),
                gtk_marshal_NONE__STRING,
                GTK_TYPE_NONE, 1,
                GTK_TYPE_STRING);
    cal_client_signals[OBJ_REMOVED] =
        gtk_signal_new ("obj_removed",
                GTK_RUN_FIRST,
                object_class->type,
                GTK_SIGNAL_OFFSET (CalClientClass, obj_removed),
                gtk_marshal_NONE__STRING,
                GTK_TYPE_NONE, 1,
                GTK_TYPE_STRING);

    gtk_object_class_add_signals (object_class, cal_client_signals, LAST_SIGNAL);

    object_class->destroy = cal_client_destroy;
}

/* Object initialization function for the calendar client */
static void
cal_client_init (CalClient *client)
{
    CalClientPrivate *priv;

    priv = g_new0 (CalClientPrivate, 1);
    client->priv = priv;

    priv->factory = CORBA_OBJECT_NIL;
    priv->load_state = LOAD_STATE_NOT_LOADED;
}

/* Gets rid of the factory that a client knows about */
static void
destroy_factory (CalClient *client)
{
    CalClientPrivate *priv;
    CORBA_Environment ev;
    int result;

    priv = client->priv;

    CORBA_exception_init (&ev);
    result = CORBA_Object_is_nil (priv->factory, &ev);
    if (ev._major != CORBA_NO_EXCEPTION) {
        g_message ("destroy_factory(): could not see if the factory was nil");
        priv->factory = CORBA_OBJECT_NIL;
        CORBA_exception_free (&ev);
        return;
    }
    CORBA_exception_free (&ev);

    if (result)
        return;

    CORBA_exception_init (&ev);
    CORBA_Object_release (priv->factory, &ev);
    if (ev._major != CORBA_NO_EXCEPTION)
        g_message ("destroy_factory(): could not release the factory");

    CORBA_exception_free (&ev);
    priv->factory = CORBA_OBJECT_NIL;
}

/* Gets rid of the listener that a client knows about */
static void
destroy_listener (CalClient *client)
{
    CalClientPrivate *priv;

    priv = client->priv;

    if (!priv->listener)
        return;

    bonobo_object_unref (BONOBO_OBJECT (priv->listener));
    priv->listener = NULL;
}

/* Gets rid of the calendar client interface object that a client knows about */
static void
destroy_cal (CalClient *client)
{
    CalClientPrivate *priv;
    CORBA_Environment ev;
    int result;

    priv = client->priv;

    CORBA_exception_init (&ev);
    result = CORBA_Object_is_nil (priv->cal, &ev);
    if (ev._major != CORBA_NO_EXCEPTION) {
        g_message ("destroy_cal(): could not see if the "
               "calendar client interface object was nil");
        priv->cal = CORBA_OBJECT_NIL;
        CORBA_exception_free (&ev);
        return;
    }
    CORBA_exception_free (&ev);

    if (result)
        return;

    CORBA_exception_init (&ev);
    Evolution_Calendar_Cal_unref (priv->cal, &ev);
    if (ev._major != CORBA_NO_EXCEPTION)
        g_message ("destroy_cal(): could not unref the calendar client interface object");

    CORBA_exception_free (&ev);

    CORBA_exception_init (&ev);
    CORBA_Object_release (priv->cal, &ev);
    if (ev._major != CORBA_NO_EXCEPTION)
        g_message ("destroy_cal(): could not release the calendar client interface object");

    CORBA_exception_free (&ev);
    priv->cal = CORBA_OBJECT_NIL;

}

/* Destroy handler for the calendar client */
static void
cal_client_destroy (GtkObject *object)
{
    CalClient *client;
    CalClientPrivate *priv;

    g_return_if_fail (object != NULL);
    g_return_if_fail (IS_CAL_CLIENT (object));

    client = CAL_CLIENT (object);
    priv = client->priv;

    destroy_factory (client);
    destroy_listener (client);
    destroy_cal (client);

    priv->load_state = LOAD_STATE_NOT_LOADED;

    g_free (priv);

    if (GTK_OBJECT_CLASS (parent_class)->destroy)
        (* GTK_OBJECT_CLASS (parent_class)->destroy) (object);
}



/* Signal handlers for the listener's signals */

/* Handle the cal_loaded signal from the listener */
static void
cal_loaded_cb (CalListener *listener,
           Evolution_Calendar_Listener_LoadStatus status,
           Evolution_Calendar_Cal cal,
           gpointer data)
{
    CalClient *client;
    CalClientPrivate *priv;
    CORBA_Environment ev;
    Evolution_Calendar_Cal cal_copy;
    CalClientLoadStatus client_status;

    client = CAL_CLIENT (data);
    priv = client->priv;

    g_assert (priv->load_state == LOAD_STATE_LOADING);

    client_status = CAL_CLIENT_LOAD_ERROR;

    switch (status) {
    case Evolution_Calendar_Listener_SUCCESS:
        CORBA_exception_init (&ev);
        cal_copy = CORBA_Object_duplicate (cal, &ev);
        if (ev._major != CORBA_NO_EXCEPTION) {
            g_message ("cal_loaded(): could not duplicate the calendar client interface");
            CORBA_exception_free (&ev);
            goto error;
        }
        CORBA_exception_free (&ev);

        priv->cal = cal_copy;
        priv->load_state = LOAD_STATE_LOADED;

        client_status = CAL_CLIENT_LOAD_SUCCESS;
        goto out;

    case Evolution_Calendar_Listener_ERROR:
        client_status = CAL_CLIENT_LOAD_ERROR;
        goto error;

    case Evolution_Calendar_Listener_IN_USE:
        client_status = CAL_CLIENT_LOAD_IN_USE;
        goto error;

    case Evolution_Calendar_Listener_METHOD_NOT_SUPPORTED:
        client_status = CAL_CLIENT_LOAD_METHOD_NOT_SUPPORTED;
        goto error;

    default:
        g_assert_not_reached ();
    }

 error:

    bonobo_object_unref (BONOBO_OBJECT (priv->listener));
    priv->listener = NULL;
    priv->load_state = LOAD_STATE_NOT_LOADED;

 out:

    g_assert (priv->load_state != LOAD_STATE_LOADING);

    gtk_signal_emit (GTK_OBJECT (client), cal_client_signals[CAL_LOADED],
             client_status);
}

/* Handle the obj_updated signal from the listener */
static void
obj_updated_cb (CalListener *listener, const Evolution_Calendar_CalObjUID uid, gpointer data)
{
    CalClient *client;

    client = CAL_CLIENT (data);
    gtk_signal_emit (GTK_OBJECT (client), cal_client_signals[OBJ_UPDATED], uid);
}

/* Handle the obj_removed signal from the listener */
static void
obj_removed_cb (CalListener *listener, const Evolution_Calendar_CalObjUID uid, gpointer data)
{
    CalClient *client;

    client = CAL_CLIENT (data);
    gtk_signal_emit (GTK_OBJECT (client), cal_client_signals[OBJ_REMOVED], uid);
}



/**
 * cal_client_construct:
 * @client: A calendar client.
 *
 * Constructs a calendar client object by contacting the calendar factory of the
 * calendar server.
 *
 * Return value: The same object as the @client argument, or NULL if the
 * calendar factory could not be contacted.
 **/
CalClient *
cal_client_construct (CalClient *client)
{
    CalClientPrivate *priv;
    Evolution_Calendar_CalFactory factory, factory_copy;
    CORBA_Environment ev;
    int result;

    CORBA_exception_init (&ev);
    g_return_val_if_fail (client != NULL, NULL);
    g_return_val_if_fail (IS_CAL_CLIENT (client), NULL);

    priv = client->priv;

#ifdef USING_OAF
    factory = (Evolution_Calendar_CalFactory) oaf_activate_from_id (
        "OAFIID:evolution:calendar-factory:1c915858-ece3-4a6f-9d81-ea0f108a9554",
        OAF_FLAG_NO_LOCAL, NULL, &ev);
#else
    factory = (Evolution_Calendar_CalFactory) goad_server_activate_with_id (
        NULL,
        "evolution:calendar-factory",
        GOAD_ACTIVATE_REMOTE,
        NULL);
#endif

    result = CORBA_Object_is_nil (factory, &ev);
    if (ev._major != CORBA_NO_EXCEPTION) {
        g_message ("cal_client_construct(): could not see if the factory is NIL");
        CORBA_exception_free (&ev);
        return NULL;
    }
    CORBA_exception_free (&ev);

    if (result) {
        g_message ("cal_client_construct(): could not contact Tlacuache, "
               "the personal calendar server");
        return NULL;
    }

    CORBA_exception_init (&ev);
    factory_copy = CORBA_Object_duplicate (factory, &ev);

    if (ev._major != CORBA_NO_EXCEPTION) {
        g_message ("cal_client_construct(): could not duplicate the calendar factory");
        CORBA_exception_free (&ev);
        return NULL;
    }
    CORBA_exception_free (&ev);

    priv->factory = factory_copy;
    return client;
}

/**
 * cal_client_new:
 * @void:
 *
 * Creates a new calendar client.  It should be initialized by calling
 * cal_client_load_calendar() or cal_client_create_calendar().
 *
 * Return value: A newly-created calendar client, or NULL if the client could
 * not be constructed because it could not contact the calendar server.
 **/
CalClient *
cal_client_new (void)
{
    CalClient *client;

    client = gtk_type_new (CAL_CLIENT_TYPE);

    if (!cal_client_construct (client)) {
        g_message ("cal_client_new(): could not construct the calendar client");
        gtk_object_unref (GTK_OBJECT (client));
        return NULL;
    }

    return client;
}

/* Issues a load or create request */
static gboolean
load_or_create (CalClient *client, const char *str_uri, gboolean load)
{
    CalClientPrivate *priv;
    Evolution_Calendar_Listener corba_listener;
    CORBA_Environment ev;

    g_return_val_if_fail (client != NULL, FALSE);
    g_return_val_if_fail (IS_CAL_CLIENT (client), FALSE);

    priv = client->priv;
    g_return_val_if_fail (priv->load_state == LOAD_STATE_NOT_LOADED, FALSE);

    g_return_val_if_fail (str_uri != NULL, FALSE);

    priv->listener = cal_listener_new ();
    if (!priv->listener) {
        g_message ("load_or_create(): could not create the listener");
        return FALSE;
    }

    gtk_signal_connect (GTK_OBJECT (priv->listener), "cal_loaded",
                GTK_SIGNAL_FUNC (cal_loaded_cb),
                client);
    gtk_signal_connect (GTK_OBJECT (priv->listener), "obj_updated",
                GTK_SIGNAL_FUNC (obj_updated_cb),
                client);
    gtk_signal_connect (GTK_OBJECT (priv->listener), "obj_removed",
                GTK_SIGNAL_FUNC (obj_removed_cb),
                client);

    corba_listener = (Evolution_Calendar_Listener) bonobo_object_corba_objref (
        BONOBO_OBJECT (priv->listener));

    CORBA_exception_init (&ev);

    priv->load_state = LOAD_STATE_LOADING;

    if (load)
        Evolution_Calendar_CalFactory_load (priv->factory, str_uri, corba_listener, &ev);
    else
        Evolution_Calendar_CalFactory_create (priv->factory, str_uri, corba_listener, &ev);

    if (ev._major != CORBA_NO_EXCEPTION) {
        g_message ("load_or_create(): load/create request failed");
        bonobo_object_unref (BONOBO_OBJECT (priv->listener));
        priv->listener = NULL;
        priv->load_state = LOAD_STATE_NOT_LOADED;
        CORBA_exception_free (&ev);
        return FALSE;
    }
    CORBA_exception_free (&ev);

    return TRUE;
}

/**
 * cal_client_load_calendar:
 * @client: A calendar client.
 * @str_uri: URI of calendar to load.
 *
 * Makes a calendar client initiate a request to load a calendar.  The calendar
 * client will emit the "cal_loaded" signal when the response from the server is
 * received.
 *
 * Return value: TRUE on success, FALSE on failure to issue the load request.
 **/
gboolean
cal_client_load_calendar (CalClient *client, const char *str_uri)
{
    return load_or_create (client, str_uri, TRUE);
}

/**
 * cal_client_create_calendar:
 * @client: A calendar client.
 * @str_uri: URI that will contain the calendar data.
 *
 * Makes a calendar client initiate a request to create a new calendar.  The
 * calendar client will emit the "cal_loaded" signal when the response from the
 * server is received.
 *
 * Return value: TRUE on success, FALSE on failure to issue the create request.
 **/
gboolean
cal_client_create_calendar (CalClient *client, const char *str_uri)
{
    return load_or_create (client, str_uri, FALSE);
}

int
cal_client_get_n_objects (CalClient *client, CalObjType type)
{
    CalClientPrivate *priv;
    CORBA_Environment ev;
    int n;
    int t;

    g_return_val_if_fail (client != NULL, -1);
    g_return_val_if_fail (IS_CAL_CLIENT (client), -1);

    priv = client->priv;
    g_return_val_if_fail (priv->load_state == LOAD_STATE_LOADED, -1);

    t = (((type & CALOBJ_TYPE_EVENT) ? Evolution_Calendar_TYPE_EVENT : 0)
         | ((type & CALOBJ_TYPE_TODO) ? Evolution_Calendar_TYPE_TODO : 0)
         | ((type & CALOBJ_TYPE_JOURNAL) ? Evolution_Calendar_TYPE_JOURNAL : 0)
         | ((type & CALOBJ_TYPE_OTHER) ? Evolution_Calendar_TYPE_OTHER : 0)
         /*
         | ((type & CALOBJ_TYPE_ANY) ? Evolution_Calendar_TYPE_ANY : 0)
         */
         );

    CORBA_exception_init (&ev);
    n = Evolution_Calendar_Cal_get_n_objects (priv->cal, t, &ev);

    if (ev._major != CORBA_NO_EXCEPTION) {
        g_message ("cal_client_get_n_objects(): could not get the number of objects");
        CORBA_exception_free (&ev);
        return -1;
    }

    CORBA_exception_free (&ev);
    return n;
}

/**
 * cal_client_get_object:
 * @client: A calendar client.
 * @uid: Unique identifier for a calendar object.
 *
 * Queries a calendar for a calendar object based on its unique identifier.
 *
 * Return value: The string representation of a complete calendar wrapping the
 * sought object, or NULL if no object had the specified UID.  A complete
 * calendar is returned because you also need the timezone data.
 **/
CalClientGetStatus
cal_client_get_object (CalClient *client, const char *uid, iCalObject **ico)
{
    CalClientPrivate *priv;
    CORBA_Environment ev;
    Evolution_Calendar_CalObj calobj_str;
    CalClientGetStatus retval;
    CalObjFindStatus status;

    g_return_val_if_fail (client != NULL, CAL_CLIENT_GET_NOT_FOUND);
    g_return_val_if_fail (IS_CAL_CLIENT (client), CAL_CLIENT_GET_NOT_FOUND);

    priv = client->priv;
    g_return_val_if_fail (priv->load_state == LOAD_STATE_LOADED, CAL_CLIENT_GET_NOT_FOUND);

    g_return_val_if_fail (uid != NULL, CAL_CLIENT_GET_NOT_FOUND);
    g_return_val_if_fail (ico != NULL, CAL_CLIENT_GET_NOT_FOUND);

    retval = CAL_CLIENT_GET_NOT_FOUND;
    *ico = NULL;

    CORBA_exception_init (&ev);
    calobj_str = Evolution_Calendar_Cal_get_object (priv->cal, uid, &ev);

    if (ev._major == CORBA_USER_EXCEPTION
        && strcmp (CORBA_exception_id (&ev), ex_Evolution_Calendar_Cal_NotFound) == 0)
        goto out;
    else if (ev._major != CORBA_NO_EXCEPTION) {
        g_message ("cal_client_get_object(): could not get the object");
        goto out;
    }

    status = ical_object_find_in_string (uid, calobj_str, ico);
    CORBA_free (calobj_str);

    switch (status) {
    case CAL_OBJ_FIND_SUCCESS:
        retval = CAL_CLIENT_GET_SUCCESS;
        break;

    case CAL_OBJ_FIND_SYNTAX_ERROR:
        retval = CAL_CLIENT_GET_SYNTAX_ERROR;
        break;

    case CAL_OBJ_FIND_NOT_FOUND:
        retval = CAL_CLIENT_GET_NOT_FOUND;
        break;

    default:
        g_assert_not_reached ();
    }

 out:

    CORBA_exception_free (&ev);
    return retval;
#if 0
    icalcomponent* comp = NULL;
    icalcomponent *subcomp;
    iCalObject    *ical;

    /* convert the string into an iCalObject */
    (*ico) = NULL;
    if (obj_str == NULL) return CAL_CLIENT_GET_SYNTAX_ERROR;
    comp = icalparser_parse_string (obj_str);
    free (obj_str);
    if (!comp) return CAL_CLIENT_GET_SYNTAX_ERROR;
    subcomp = icalcomponent_get_first_component (comp, ICAL_ANY_COMPONENT);
    if (!subcomp) return CAL_CLIENT_GET_SYNTAX_ERROR;

    while (subcomp) {
        ical = ical_object_create_from_icalcomponent (subcomp);
        if (ical->type != ICAL_EVENT &&
            ical->type != ICAL_TODO  &&
            ical->type != ICAL_JOURNAL) {
            g_warning ("Skipping unsupported iCalendar component");
        } else {
            if (strcasecmp (ical->uid, uid) == 0) {
                (*ico) = ical;
                (*ico)->ref_count = 1;
                return CAL_CLIENT_GET_SUCCESS;
            }
        }
        subcomp = icalcomponent_get_next_component (comp,
                               ICAL_ANY_COMPONENT);
    }
#endif
}

/**
 * cal_client_get_uids:
 * @client: A calendar client.
 * @type: Bitmask with types of objects to return.
 *
 * Queries a calendar for a list of unique identifiers corresponding to calendar
 * objects whose type matches one of the types specified in the @type flags.
 *
 * Return value: A list of strings that are the sought UIDs.
 **/
GList *
cal_client_get_uids (CalClient *client, CalObjType type)
{
    CalClientPrivate *priv;
    CORBA_Environment ev;
    Evolution_Calendar_CalObjUIDSeq *seq;
    int t;
    GList *uids;
    int i;

    g_return_val_if_fail (client != NULL, NULL);
    g_return_val_if_fail (IS_CAL_CLIENT (client), NULL);

    priv = client->priv;
    /*g_return_val_if_fail (priv->load_state == LOAD_STATE_LOADED, NULL);*/
    if (priv->load_state != LOAD_STATE_LOADED)
        return NULL;

    t = (((type & CALOBJ_TYPE_EVENT) ? Evolution_Calendar_TYPE_EVENT : 0)
         | ((type & CALOBJ_TYPE_TODO) ? Evolution_Calendar_TYPE_TODO : 0)
         | ((type & CALOBJ_TYPE_JOURNAL) ? Evolution_Calendar_TYPE_JOURNAL : 0)
         | ((type & CALOBJ_TYPE_OTHER) ? Evolution_Calendar_TYPE_OTHER : 0)
         /*
         | ((type & CALOBJ_TYPE_ANY) ? Evolution_Calendar_TYPE_ANY : 0)
         */
         );

    CORBA_exception_init (&ev);

    seq = Evolution_Calendar_Cal_get_uids (priv->cal, t, &ev);
    if (ev._major != CORBA_NO_EXCEPTION) {
        g_message ("cal_client_get_uids(): could not get the list of UIDs");
        CORBA_exception_free (&ev);
        return NULL;
    }

    CORBA_exception_free (&ev);

    /* Create the list */

    uids = NULL;

    for (i = 0; i < seq->_length; i++)
        uids = g_list_prepend (uids, g_strdup (seq->_buffer[i]));

    CORBA_free (seq);

    return uids;
}

/* Builds a GList of CalObjInstance structures from the CORBA sequence */
static GList *
build_object_instance_list (Evolution_Calendar_CalObjInstanceSeq *seq)
{
    GList *list;
    int i;

    /* Create the list in reverse order */

    list = NULL;
    for (i = 0; i < seq->_length; i++) {
        Evolution_Calendar_CalObjInstance *corba_icoi;
        CalObjInstance *icoi;

        corba_icoi = &seq->_buffer[i];
        icoi = g_new (CalObjInstance, 1);

        icoi->uid = g_strdup (corba_icoi->uid);
        icoi->start = corba_icoi->start;
        icoi->end = corba_icoi->end;

        list = g_list_prepend (list, icoi);
    }

    list = g_list_reverse (list);
    return list;
}

/**
 * cal_client_get_events_in_range:
 * @client: A calendar client.
 * @start: Start time for query.
 * @end: End time for query.
 *
 * Queries a calendar for the events that occur or recur in the specified range
 * of time.
 *
 * Return value: A list of #CalObjInstance structures.
 **/
GList *
cal_client_get_events_in_range (CalClient *client, time_t start, time_t end)
{
    CalClientPrivate *priv;
    CORBA_Environment ev;
    Evolution_Calendar_CalObjInstanceSeq *seq;
    GList *events;

    g_return_val_if_fail (client != NULL, NULL);
    g_return_val_if_fail (IS_CAL_CLIENT (client), NULL);

    priv = client->priv;
    if (priv->load_state != LOAD_STATE_LOADED)
        return NULL;

    g_return_val_if_fail (start != -1 && end != -1, NULL);
    g_return_val_if_fail (start <= end, NULL);

    CORBA_exception_init (&ev);

    seq = Evolution_Calendar_Cal_get_events_in_range (priv->cal, start, end, &ev);
    if (ev._major != CORBA_NO_EXCEPTION) {
        g_message ("cal_client_get_events_in_range(): could not get the event range");
        CORBA_exception_free (&ev);
        return NULL;
    }
    CORBA_exception_free (&ev);

    events = build_object_instance_list (seq);
    CORBA_free (seq);

    return events;
}

/* Translates the CORBA representation of an AlarmType */
static enum AlarmType
uncorba_alarm_type (Evolution_Calendar_AlarmType corba_type)
{
    switch (corba_type) {
    case Evolution_Calendar_MAIL:
        return ALARM_MAIL;

    case Evolution_Calendar_PROGRAM:
        return ALARM_PROGRAM;

    case Evolution_Calendar_DISPLAY:
        return ALARM_DISPLAY;

    case Evolution_Calendar_AUDIO:
        return ALARM_AUDIO;

    default:
        g_assert_not_reached ();
        return ALARM_DISPLAY;
    }
}

/* Builds a GList of CalAlarmInstance structures from the CORBA sequence */
static GList *
build_alarm_instance_list (Evolution_Calendar_CalAlarmInstanceSeq *seq)
{
    GList *list;
    int i;

    /* Create the list in reverse order */

    list = NULL;
    for (i = 0; i < seq->_length; i++) {
        Evolution_Calendar_CalAlarmInstance *corba_ai;
        CalAlarmInstance *ai;

        corba_ai = &seq->_buffer[i];
        ai = g_new (CalAlarmInstance, 1);

        ai->uid = g_strdup (corba_ai->uid);
        ai->type = uncorba_alarm_type (corba_ai->type);
        ai->trigger = corba_ai->trigger;
        ai->occur = corba_ai->occur;

        list = g_list_prepend (list, ai);
    }

    list = g_list_reverse (list);
    return list;
}

/**
 * cal_client_get_alarms_in_range:
 * @client: A calendar client.
 * @start: Start time for query.
 * @end: End time for query.
 *
 * Queries a calendar for the alarms that trigger in the specified range of
 * time.
 *
 * Return value: A list of #CalAlarmInstance structures.
 **/
GList *
cal_client_get_alarms_in_range (CalClient *client, time_t start, time_t end)
{
    CalClientPrivate *priv;
    CORBA_Environment ev;
    Evolution_Calendar_CalAlarmInstanceSeq *seq;
    GList *alarms;

    g_return_val_if_fail (client != NULL, NULL);
    g_return_val_if_fail (IS_CAL_CLIENT (client), NULL);

    priv = client->priv;
    if (priv->load_state != LOAD_STATE_LOADED)
        return NULL;

    g_return_val_if_fail (start != -1 && end != -1, NULL);
    g_return_val_if_fail (start <= end, NULL);

    CORBA_exception_init (&ev);

    seq = Evolution_Calendar_Cal_get_alarms_in_range (priv->cal, start, end, &ev);
    if (ev._major != CORBA_NO_EXCEPTION) {
        g_message ("cal_client_get_alarms_in_range(): could not get the alarm range");
        CORBA_exception_free (&ev);
        return NULL;
    }
    CORBA_exception_free (&ev);

    alarms = build_alarm_instance_list (seq);
    CORBA_free (seq);

    return alarms;
}

/**
 * cal_client_get_alarms_for_object:
 * @client: A calendar client.
 * @uid: Unique identifier for a calendar object.
 * @start: Start time for query.
 * @end: End time for query.
 * @alarms: Return value for the list of alarm instances.
 *
 * Queries a calendar for the alarms of a particular object that trigger in the
 * specified range of time.
 *
 * Return value: TRUE on success, FALSE if the object was not found.
 **/
gboolean
cal_client_get_alarms_for_object (CalClient *client, const char *uid,
                  time_t start, time_t end,
                  GList **alarms)
{
    CalClientPrivate *priv;
    CORBA_Environment ev;
    Evolution_Calendar_CalAlarmInstanceSeq *seq;
    gboolean retval;

    g_return_val_if_fail (client != NULL, FALSE);
    g_return_val_if_fail (IS_CAL_CLIENT (client), FALSE);

    priv = client->priv;
    if (priv->load_state != LOAD_STATE_LOADED)
        return FALSE;

    g_return_val_if_fail (uid != NULL, FALSE);
    g_return_val_if_fail (start != -1 && end != -1, FALSE);
    g_return_val_if_fail (start <= end, FALSE);
    g_return_val_if_fail (alarms != NULL, FALSE);

    *alarms = NULL;
    retval = FALSE;

    CORBA_exception_init (&ev);

    seq = Evolution_Calendar_Cal_get_alarms_for_object (priv->cal, uid, start, end, &ev);
    if (ev._major == CORBA_USER_EXCEPTION
        && strcmp (CORBA_exception_id (&ev), ex_Evolution_Calendar_Cal_NotFound) == 0)
        goto out;
    else if (ev._major != CORBA_NO_EXCEPTION) {
        g_message ("cal_client_get_alarms_for_object(): could not get the alarm range");
        goto out;
    }

    retval = TRUE;
    *alarms = build_alarm_instance_list (seq);
    CORBA_free (seq);

 out:
    CORBA_exception_free (&ev);
    return retval;

}

/**
 * cal_client_update_object:
 * @client: A calendar client.
 * @ico: A calendar object.
 *
 * Asks a calendar to update an object.  Any existing object with the specified
 * UID will be replaced.  The client program should not assume that the object
 * is actually in the server's storage until it has received the "obj_updated"
 * notification signal.
 *
 * Return value: TRUE on success, FALSE on specifying an invalid object.
 **/
gboolean
cal_client_update_object (CalClient *client, iCalObject *ico)
{
    CalClientPrivate *priv;
    CORBA_Environment ev;
    gboolean retval;
    char *obj_string;

    g_return_val_if_fail (client != NULL, FALSE);
    g_return_val_if_fail (IS_CAL_CLIENT (client), FALSE);

    priv = client->priv;
    g_return_val_if_fail (priv->load_state == LOAD_STATE_LOADED, FALSE);

    g_return_val_if_fail (ico != NULL, FALSE);
    g_return_val_if_fail (ico->uid != NULL, FALSE);

    retval = FALSE;

    obj_string = ical_object_to_string (ico);

    CORBA_exception_init (&ev);
    Evolution_Calendar_Cal_update_object (priv->cal, ico->uid, obj_string, &ev);
    g_free (obj_string);

    if (ev._major == CORBA_USER_EXCEPTION &&
        strcmp (CORBA_exception_id (&ev), ex_Evolution_Calendar_Cal_InvalidObject) == 0)
        goto out;
    else if (ev._major != CORBA_NO_EXCEPTION) {
        g_message ("cal_client_update_object(): could not update the object");
        goto out;
    }

    retval = TRUE;

 out:
    CORBA_exception_free (&ev);
    return retval;
}

gboolean
cal_client_remove_object (CalClient *client, const char *uid)
{
    CalClientPrivate *priv;
    CORBA_Environment ev;
    gboolean retval;

    g_return_val_if_fail (client != NULL, FALSE);
    g_return_val_if_fail (IS_CAL_CLIENT (client), FALSE);

    priv = client->priv;
    g_return_val_if_fail (priv->load_state == LOAD_STATE_LOADED, FALSE);

    g_return_val_if_fail (uid != NULL, FALSE);

    retval = FALSE;

    CORBA_exception_init (&ev);
    Evolution_Calendar_Cal_remove_object (priv->cal, uid, &ev);

    if (ev._major == CORBA_USER_EXCEPTION &&
        strcmp (CORBA_exception_id (&ev), ex_Evolution_Calendar_Cal_NotFound) == 0)
        goto out;
    else if (ev._major != CORBA_NO_EXCEPTION) {
        g_message ("cal_client_remove_object(): could not remove the object");
        goto out;
    }

    retval = TRUE;

 out:
    CORBA_exception_free (&ev);
    return retval;
}