aboutsummaryrefslogtreecommitdiffstats
path: root/mail/subscribe-dialog.c
blob: 81792f000af67a35ea39980857e0c81e06d9d48e (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
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/* subscribe-dialog.c: Subscribe dialog */
/*
 *  Authors: Chris Toshok <toshok@ximian.com>
 *           Peter Williams <peterw@ximian.com>
 *
 *  Copyright 2000 Ximian, Inc. (www.ximian.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 Street #330, Boston, MA 02111-1307, USA.
 *
 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include <gal/util/e-util.h>
#include <gal/widgets/e-unicode.h>

#include <gal/e-table/e-cell-toggle.h>
#include <gal/e-table/e-cell-text.h>
#include <gal/e-table/e-cell-tree.h>

#include <gal/e-table/e-tree-scrolled.h>
#include <gal/e-table/e-tree-memory-callbacks.h>
#include <gal/e-table/e-tree.h>

#include <pthread.h>

#include "evolution-shell-component-utils.h"
#include "mail.h"
#include "mail-tools.h"
#include "mail-ops.h"
#include "mail-mt.h"
#include "mail-folder-cache.h"
#include "camel/camel-exception.h"
#include "camel/camel-store.h"
#include "camel/camel-session.h"
#include "subscribe-dialog.h"

#include "art/empty.xpm"
#include "art/mark.xpm"

#define d(x) x

/* Things to test.
 * - Feature
 *   + How to check that it works.
 *
 * - Proper stores displayed
 *   + Skip stores that don't support subscriptions
 *   + Skip disabled stores
 * - Changing subscription status
 *   + Select single folder, double-click row -> toggled
 *   + Select multiple folders, press subscribe -> all selected folders end up subscribed
 * - (un)Subscribing from/to already (un)subscribed folder
 *   + Check that no IMAP command is sent
 * - Switching views between stores
 *   + Proper tree shown
 * - No crashes when buttons are pressed with "No store" screen
 *   + obvious
 * - Restoring filter settings when view switched
 *   + Enter search, change view, change back -> filter checked and search entry set
 *   + Clear search, change view, change back -> "all" checked
 * - Cancelling in middle of get_store 
 *   + Enter invalid hostname, open dialog, click Close
 * - Cancelling in middle if listing 
 *   + Open large directory, click Close
 * - Cancelling in middle of subscription op
 *   + How to test?
 * - Test with both IMAP and NNTP
 *   + obvious
 * - Verify that refresh view works
 *   + obvious
 * - No unnecessary tree rebuilds
 *   + Show All folders, change filter with empty search -> no tree rebuild
 *   + Converse
 * - No out of date tree
 *   + Show All Folders, change to filter with a search -> tree rebuild
 * - Tree construction logic (mostly IMAP-specific terminology)
 *   + Tree is created progressively
 *   + No wasted LIST responses
 *   + No extraneous LIST commands
 *   + Specifying "folder names begin with" works
 *   + Always show folders below IMAP namespace (no escaping the namespace)
 *   + Don't allow subscription to NoSelect folders
 *   + IMAP accounts always show INBOX
 * - Shell interactions
 *   + Folders are properly created / delete from folder tree when subscribed / unsubscribed
 *   + Folders with spaces in names / 8bit chars
 *   + Toplevel as well as subfolders
 *   + Mail Folder Cache doesn't complain
 * - No ETable wackiness
 *   + Verify columns cannot be DnD'd
 *   + Alphabetical order always
 * - UI cleanliness
 *   + Keybindings work
 *   + Some widget has focus by default
 *   + Escape / enter work
 *   + Close button works
 */

/* FIXME: we should disable/enable the subscribe/unsubscribe buttons as
 * appropriate when only a single message is selected. We need a
 * mechanism to learn when the selected folder's subscription status
 * changes, so when the user double-clicks it (eg) the buttons can
 * (de)sensitize appropriately. See Ximian bug #7673.
 */

/*#define NEED_TOGGLE_SELECTION*/

typedef struct _FolderETree              FolderETree;
typedef struct _FolderETreeClass         FolderETreeClass;

struct _FolderETree {
    ETreeMemory parent;
    ETreePath root;

    GHashTable *scan_ops;
    GHashTable *subscribe_ops;

    CamelStore *store;
    EvolutionStorage *e_storage;
    char *service_name;
    char *search;
};

struct _FolderETreeClass {
    ETreeMemoryClass parent;
};

static GtkObjectClass *folder_etree_parent_class = NULL;

typedef struct _FolderETreeExtras      FolderETreeExtras;
typedef struct _FolderETreeExtrasClass FolderETreeExtrasClass;

enum {
    FOLDER_COL_SUBSCRIBED,
    FOLDER_COL_NAME,
    FOLDER_COL_LAST
};

struct _FolderETreeExtras {
    ETableExtras parent;
    GdkPixbuf *toggles[2];
};

struct _FolderETreeExtrasClass {
    ETableExtrasClass parent;
};

static GtkObjectClass *ftree_extras_parent_class = NULL;

/* util */

static void
recursive_add_folder (EvolutionStorage *storage, const char *path, const char *name, const char *url)
{
    char *parent, *pname, *p;

    p = strrchr (path, '/');
    if (p && p != path) {
        parent = g_strndup (path, p - path);
        if (!evolution_storage_folder_exists (storage, parent)) {
            p = strrchr (parent, '/');
            if (p)
                pname = g_strdup (p + 1);
            else
                pname = g_strdup ("");
            recursive_add_folder (storage, parent, pname, "");
            g_free (pname);
        }
        g_free (parent);
    }

    evolution_storage_new_folder (storage, path, name, "mail", url, name, FALSE);
    mail_folder_cache_set_update_estorage (url, storage);
    mail_folder_cache_note_name (url, name);
}

/* ** Get one level of folderinfo ****************************************** */

typedef void (*SubscribeShortFolderinfoFunc) (CamelStore *store, char *prefix, CamelFolderInfo *info, gpointer data);

int subscribe_get_short_folderinfo (FolderETree *ftree, const char *prefix,
                    SubscribeShortFolderinfoFunc func, gpointer user_data);

struct _get_short_folderinfo_msg {
    struct _mail_msg msg;

    char *prefix;

    FolderETree *ftree;
    CamelFolderInfo *info;

    SubscribeShortFolderinfoFunc func;
    gpointer user_data;
};

static char *
get_short_folderinfo_desc (struct _mail_msg *mm, int done)
{
    struct _get_short_folderinfo_msg *m = (struct _get_short_folderinfo_msg *) mm;
    char *ret, *name;

    name = camel_service_get_name (CAMEL_SERVICE (m->ftree->store), TRUE);

    if (m->prefix)
        ret = g_strdup_printf (_("Scanning folders under %s on \"%s\""), m->prefix, name);
    else
        ret = g_strdup_printf (_("Scanning root-level folders on \"%s\""), name);

    g_free (name);
    return ret;
}

static void
get_short_folderinfo_get (struct _mail_msg *mm)
{
    struct _get_short_folderinfo_msg *m = (struct _get_short_folderinfo_msg *) mm;

    camel_operation_register (mm->cancel);
    m->info = camel_store_get_folder_info (m->ftree->store, m->prefix, CAMEL_STORE_FOLDER_INFO_FAST, &mm->ex);
    camel_operation_unregister (mm->cancel);
}

static void
get_short_folderinfo_got (struct _mail_msg *mm)
{
    struct _get_short_folderinfo_msg *m = (struct _get_short_folderinfo_msg *) mm;

    if (camel_exception_is_set (&mm->ex))
        g_warning ("Error getting folder info from store at %s: %s",
               camel_service_get_url (CAMEL_SERVICE (m->ftree->store)),
               camel_exception_get_description (&mm->ex));

    /* 'done' is probably guaranteed to fail, but... */

    if (m->func)
        m->func (m->ftree->store, m->prefix, m->info, m->user_data);
}

static void
get_short_folderinfo_free (struct _mail_msg *mm)
{
    struct _get_short_folderinfo_msg *m = (struct _get_short_folderinfo_msg *) mm;

    camel_store_free_folder_info (m->ftree->store, m->info);
    gtk_object_unref (GTK_OBJECT (m->ftree));

    g_free (m->prefix); /* may be NULL but that's ok */
}

static struct _mail_msg_op get_short_folderinfo_op = {
    get_short_folderinfo_desc,
    get_short_folderinfo_get,
    get_short_folderinfo_got,
    get_short_folderinfo_free,
};

int
subscribe_get_short_folderinfo (FolderETree *ftree, 
                const char *prefix,
                SubscribeShortFolderinfoFunc func, 
                gpointer user_data)
{
    struct _get_short_folderinfo_msg *m;
    int id;

    m = mail_msg_new (&get_short_folderinfo_op, NULL, sizeof(*m));

    m->ftree = ftree;
    gtk_object_ref (GTK_OBJECT (ftree));
    
    if (prefix)
        m->prefix = g_strdup (prefix);
    else
        m->prefix = NULL;

    m->func = func;
    m->user_data = user_data;

    id = m->msg.seq;
    e_thread_put (mail_thread_queued, (EMsg *)m);
    return id;
}

/* ** Subscribe folder operation **************************************** */

typedef void (*SubscribeFolderCallback) (const char *, const char *, gboolean, gboolean, gpointer);

struct _subscribe_msg {
    struct _mail_msg         msg;

    CamelStore              *store;
    gboolean                 subscribe;
    char                    *full_name;
    char                    *name;

    SubscribeFolderCallback  cb;
    gpointer                 cb_data;
};

static char *
subscribe_folder_desc (struct _mail_msg *mm, int done)
{
    struct _subscribe_msg *m = (struct _subscribe_msg *) mm;

    if (m->subscribe)
        return g_strdup_printf (_("Subscribing to folder \"%s\""), m->name);
    else
        return g_strdup_printf (_("Unsubscribing to folder \"%s\""), m->name);
}

static void 
subscribe_folder_subscribe (struct _mail_msg *mm)
{
    struct _subscribe_msg *m = (struct _subscribe_msg *) mm;
    
    if (m->subscribe)
        camel_store_subscribe_folder (m->store, m->full_name, &mm->ex);
    else
        camel_store_unsubscribe_folder (m->store, m->full_name, &mm->ex);
}

static void 
subscribe_folder_subscribed (struct _mail_msg *mm)
{
    struct _subscribe_msg *m = (struct _subscribe_msg *) mm;
    
    if (m->cb)
        (m->cb) (m->full_name, m->name, m->subscribe, 
             !camel_exception_is_set (&mm->ex), m->cb_data);
}

static void 
subscribe_folder_free (struct _mail_msg *mm)
{
    struct _subscribe_msg *m = (struct _subscribe_msg *) mm;

    g_free (m->name);
    g_free (m->full_name);
    
    camel_object_unref (CAMEL_OBJECT (m->store));
}

static struct _mail_msg_op subscribe_folder_op = {
    subscribe_folder_desc,
    subscribe_folder_subscribe,
    subscribe_folder_subscribed,
    subscribe_folder_free,
};

static int
subscribe_do_subscribe_folder (CamelStore *store, const char *full_name, const char *name,
                   gboolean subscribe, SubscribeFolderCallback cb, gpointer cb_data)
{
    struct _subscribe_msg *m;
    int id;

    g_return_val_if_fail (CAMEL_IS_STORE (store), 0);
    g_return_val_if_fail (full_name, 0);

    m            = mail_msg_new (&subscribe_folder_op, NULL, sizeof(*m));
    m->store     = store;
    m->subscribe = subscribe;
    m->name      = g_strdup (name);
    m->full_name = g_strdup (full_name);
    m->cb        = cb;
    m->cb_data   = cb_data;

    camel_object_ref (CAMEL_OBJECT (store));

    id = m->msg.seq;
    e_thread_put (mail_thread_queued, (EMsg *)m);
    return id;
}

/* ** FolderETree Extras *************************************************** */

static void
fete_destroy (GtkObject *object)
{
    FolderETreeExtras *extras = (FolderETreeExtras *) object;

    gdk_pixbuf_unref (extras->toggles[0]);
    gdk_pixbuf_unref (extras->toggles[1]);

    ftree_extras_parent_class->destroy (object);
}

static void
fete_class_init (GtkObjectClass *object_class)
{
    object_class->destroy = fete_destroy;

    ftree_extras_parent_class = gtk_type_class (E_TABLE_EXTRAS_TYPE);
}

static void
fete_init (GtkObject *object)
{
    FolderETreeExtras *extras = (FolderETreeExtras *) object;
    ECell             *cell;
    ECell             *text_cell;

    /* text column */

    cell = e_cell_text_new (NULL, GTK_JUSTIFY_LEFT);
    text_cell = cell;
    gtk_object_set (GTK_OBJECT (cell),
            "bold_column", FOLDER_COL_SUBSCRIBED,
            NULL);
    e_table_extras_add_cell (E_TABLE_EXTRAS (extras), "cell_text", cell);

    /* toggle column */

    extras->toggles[0] = gdk_pixbuf_new_from_xpm_data ((const char **)empty_xpm);
    extras->toggles[1] = gdk_pixbuf_new_from_xpm_data ((const char **)mark_xpm);
    cell = e_cell_toggle_new (0, 2, extras->toggles);
    e_table_extras_add_cell (E_TABLE_EXTRAS (extras), "cell_toggle", cell);

    /* tree cell */

    cell = e_cell_tree_new (NULL, NULL, TRUE, text_cell);
    e_table_extras_add_cell (E_TABLE_EXTRAS (extras), "cell_tree", cell);

    /* misc */

    e_table_extras_add_pixbuf (E_TABLE_EXTRAS (extras), "subscribed-image", extras->toggles[1]);
}

/* naughty! */
static
E_MAKE_TYPE (fete, "FolderETreeExtras", FolderETreeExtras, fete_class_init, fete_init, E_TABLE_EXTRAS_TYPE);

/* ** Global Extras ******************************************************** */

static FolderETreeExtras *global_extras = NULL;

static void
global_extras_destroyed (GtkObject *obj, gpointer user_data)
{
    global_extras = NULL;
}

static ETableExtras *
subscribe_get_global_extras (void)
{
    if (global_extras == NULL) {
        global_extras = gtk_type_new (fete_get_type());
        gtk_object_ref (GTK_OBJECT (global_extras));
        gtk_object_sink (GTK_OBJECT (global_extras));
        gtk_signal_connect (GTK_OBJECT (global_extras), "destroy", 
                    global_extras_destroyed, NULL);
    }

    gtk_object_ref (GTK_OBJECT (global_extras));
    return E_TABLE_EXTRAS (global_extras);
}

/* ** Folder Tree Node ***************************************************** */

typedef struct _ftree_node ftree_node;

struct _ftree_node {
    guint8    flags;
    char *cache;
    int uri_offset;
    int full_name_offset;

    /* format: {name}{\0}{uri}{\0}{full_name}{\0}
     * (No braces). */
    char data[1];
};

#define FTREE_NODE_GOT_CHILDREN (1 << 0)
#define FTREE_NODE_SUBSCRIBABLE (1 << 1)
#define FTREE_NODE_SUBSCRIBED   (1 << 2)
#define FTREE_NODE_ROOT         (1 << 3)

static ftree_node *
ftree_node_new_root (const char *prefix)
{
    ftree_node *node;
    size_t      size;

    if (prefix == NULL)
        prefix = "";

    size = sizeof (ftree_node) + strlen (prefix) + 1;

    node = g_malloc (size);
    node->flags = FTREE_NODE_ROOT;
    node->uri_offset = 0;
    node->full_name_offset = 1;
    node->data[0] = '\0';
    strcpy (node->data + 1, prefix);
    
    return node;
}

static ftree_node *
ftree_node_new (CamelStore *store, CamelFolderInfo *fi)
{
    ftree_node *node;
    int         uri_offset, full_name_offset;
    size_t      size;
    CamelURL   *url;

    uri_offset       = strlen (fi->name) + 1;
    full_name_offset = uri_offset + strlen (fi->url) + 1;
    size             = full_name_offset + strlen (fi->full_name);
  
    /* - 1 for sizeof(node.data) but +1 for terminating \0 */
    node = g_malloc (sizeof (*node) + size);

    node->cache = NULL;
    
    /* Noselect? */

    url = camel_url_new (fi->url, NULL);
    if (camel_url_get_param (url, "noselect"))
        node->flags = 0;
    else
        node->flags = FTREE_NODE_SUBSCRIBABLE;
    camel_url_free (url);

    /* subscribed? */

    if (camel_store_folder_subscribed (store, fi->full_name))
        node->flags |= FTREE_NODE_SUBSCRIBED;

    /* Copy strings */

    node->uri_offset       = uri_offset;
    node->full_name_offset = full_name_offset;

    strcpy (node->data, fi->name);
    strcpy (node->data + uri_offset, fi->url);
    strcpy (node->data + full_name_offset, fi->full_name);

    /* Done */

    return node;
}

#define ftree_node_subscribable(node)  ( ((ftree_node *) (node))->flags & FTREE_NODE_SUBSCRIBABLE )
#define ftree_node_subscribed(node)    ( ((ftree_node *) (node))->flags & FTREE_NODE_SUBSCRIBED )
#define ftree_node_get_name(node)      ( ((ftree_node *) (node))->data )
#define ftree_node_get_full_name(node) ( ((ftree_node *) (node))->data + ((ftree_node *) (node))->full_name_offset )
#define ftree_node_get_uri(node)       ( ((ftree_node *) (node))->data + ((ftree_node *) (node))->uri_offset )

/* ** Folder Tree Model **************************************************** */

/* A subscribe or scan operation */

typedef struct _ftree_op_data ftree_op_data;

struct _ftree_op_data {
    FolderETree *ftree;
    ETreePath path;
    ftree_node *data;
    int handle;
};


/* ETreeModel functions */

static int
fe_column_count (ETreeModel *etm)
{
    return FOLDER_COL_LAST;
}

static void *
fe_duplicate_value (ETreeModel *etm, int col, const void *val)
{
    return g_strdup (val);
}

static void
fe_free_value (ETreeModel *etm, int col, void *val)
{
    g_free (val);
}

static void*
fe_init_value (ETreeModel *etm, int col)
{
    return g_strdup ("");
}

static gboolean
fe_value_is_empty (ETreeModel *etm, int col, const void *val)
{
    return !(val && *(char *)val);
}

static char *
fe_value_to_string (ETreeModel *etm, int col, const void *val)
{
    return g_strdup (val);
}

static GdkPixbuf *
fe_icon_at (ETreeModel *etree, ETreePath path)
{
    return NULL; /* XXX no icons for now */
}

static gpointer
fe_root_value_at (FolderETree *ftree, int col)
{
    switch (col) {
    case FOLDER_COL_NAME:
        return ftree->service_name;
    case FOLDER_COL_SUBSCRIBED:
        return GINT_TO_POINTER (0);
    default:
        printf ("Oh no, unimplemented column %d in subscribe dialog\n", col);
    }

    return NULL;
}

static gpointer
fe_real_value_at (FolderETree *ftree, int col, gpointer data)
{
    switch (col) {
    case FOLDER_COL_NAME:
        return ftree_node_get_name (data);
    case FOLDER_COL_SUBSCRIBED:
        if (ftree_node_subscribed (data))
            return GINT_TO_POINTER (1);
        return GINT_TO_POINTER (0);
    default:
        printf ("Oh no, unimplemented column %d in subscribe dialog\n", col);
    }
    
    return NULL;
}

static void *
fe_value_at (ETreeModel *etree, ETreePath path, int col)
{
    FolderETree *ftree = (FolderETree *) etree;
    gpointer node_data;
    
    if (path == ftree->root)
        return fe_root_value_at (ftree, col);

    node_data = e_tree_memory_node_get_data (E_TREE_MEMORY (etree), path);
    return fe_real_value_at (ftree, col, node_data);
}

static void
fe_set_value_at (ETreeModel *etree, ETreePath path, int col, const void *val)
{
    /* nothing */
}

static gboolean
fe_return_false (void)
{
    return FALSE;
}

static gint
fe_sort_folder (ETreeMemory *etmm, ETreePath left, ETreePath right, gpointer user_data)
{
    ftree_node *n_left, *n_right;

    n_left = e_tree_memory_node_get_data (etmm, left);
    n_right = e_tree_memory_node_get_data (etmm, right);

    return g_strcasecmp (ftree_node_get_name (n_left), ftree_node_get_name (n_right));
}

/* scanning */

static void
fe_got_children (CamelStore *store, char *prefix, CamelFolderInfo *info, gpointer data)
{
    ftree_op_data *closure = (ftree_op_data *) data;

    if (!info) /* cancelled */
        return;

    if (!prefix)
        prefix = "";

    for ( ; info; info = info->sibling) {
        ETreePath   child_path;
        ftree_node *node;

        if (strcmp (info->full_name, prefix) == 0)
            continue;

        node = ftree_node_new (store, info);
        child_path = e_tree_memory_node_insert (E_TREE_MEMORY (closure->ftree),
                            closure->path,
                            0,
                            node);
        e_tree_memory_sort_node (E_TREE_MEMORY (closure->ftree), 
                     closure->path,
                     fe_sort_folder,
                     NULL);
    }

    if (closure->data)
        closure->data->flags |= FTREE_NODE_GOT_CHILDREN;

    g_hash_table_remove (closure->ftree->scan_ops, closure->path);
    g_free (closure);
}

static void
fe_check_for_children (FolderETree *ftree, ETreePath path)
{
    ftree_op_data *closure;
    ftree_node *node;
    char *prefix;

    node = e_tree_memory_node_get_data (E_TREE_MEMORY (ftree), path);

    /* have we already gotten these children? */
    if (node->flags & FTREE_NODE_GOT_CHILDREN)
        return;

    /* or we're loading them right now? */
    if (g_hash_table_lookup (ftree->scan_ops, path))
        return;

    /* figure out our search prefix */
    if (path == ftree->root)
        prefix = ftree->search;
    else
        prefix = ftree_node_get_full_name (node);

    closure = g_new (ftree_op_data, 1);
    closure->ftree = ftree;
    closure->path = path;
    closure->data = node;
    closure->handle = -1;

    g_hash_table_insert (ftree->scan_ops, path, closure);

    /* FIXME. Tiny race possiblity I guess. */

    closure->handle = subscribe_get_short_folderinfo (ftree, prefix, fe_got_children, closure);
}

static void
fe_create_root_node (FolderETree *ftree)
{
    ftree_node *node;

    node = ftree_node_new_root (ftree->search);
    ftree->root = e_tree_memory_node_insert (E_TREE_MEMORY(ftree), NULL, 0, node);
    fe_check_for_children (ftree, ftree->root);
}

static ETreePath
fe_get_first_child (ETreeModel *model, ETreePath path)
{
    ETreePath child_path;

    child_path = E_TREE_MODEL_CLASS (folder_etree_parent_class)->get_first_child (model, path);
    if (child_path)
        fe_check_for_children ((FolderETree *) model, child_path);
    else
        fe_check_for_children ((FolderETree *) model, path);
    return child_path;
}

/* subscribing */

static char *
fe_node_to_shell_path (ftree_node *node)
{
    char *path = NULL;
    int name_len, full_name_len;

    name_len = strlen (ftree_node_get_name (node));
    full_name_len = strlen (ftree_node_get_full_name (node));
    
    if (name_len != full_name_len) {
        char *full_name;
        char *iter;
        char sep;
    
        /* so, we don't know the heirarchy separator. But
         * full_name = blahXblahXname, where X = separator
         * and name = .... name. So we can determine it.
         * (imap_store->dir_sep isn't really private, I guess,
         * so we could use that if we had the store. But also
         * we don't "know" that it is an IMAP store anyway.)
         */

        full_name = ftree_node_get_full_name (node);
        sep = full_name[full_name_len - (name_len + 1)];

        if (sep != '/') {
            path = g_malloc (full_name_len + 2);
            path[0] = '/';
            strcpy (path + 1, full_name);
            while ((iter = strchr (path, sep)) != NULL)
                *iter = '/';
        }
    }

    if (!path)
        path = g_strdup_printf ("/%s", ftree_node_get_full_name (node));

    return path;
}

static void
fe_done_subscribing (const char *full_name, const char *name, gboolean subscribe, gboolean success, gpointer user_data)
{
    ftree_op_data *closure = (ftree_op_data *) user_data;

    if (success) {
        char *path;

        path = fe_node_to_shell_path (closure->data);

        if (subscribe) {
            closure->data->flags |= FTREE_NODE_SUBSCRIBED;
            recursive_add_folder (closure->ftree->e_storage,
                          path, name,
                          ftree_node_get_uri (closure->data));
        } else {
            closure->data->flags &= ~FTREE_NODE_SUBSCRIBED;

            /* FIXME: recursively remove folder as well? Possible? */
            evolution_storage_removed_folder (closure->ftree->e_storage, path);
        }

        g_free (path);
        e_tree_model_node_data_changed (E_TREE_MODEL (closure->ftree), closure->path);
    }

    g_hash_table_remove (closure->ftree->subscribe_ops, closure->path);
    g_free (closure);
}

/* cleanup */

static gboolean
fe_cancel_op_foreach (gpointer key, gpointer value, gpointer user_data)
{
    /*FolderETree   *ftree = (FolderETree *) user_data;*/
    ftree_op_data *closure = (ftree_op_data *) value;

    if (closure->handle != -1)
        mail_msg_cancel (closure->handle);
    else
        printf ("aaagh, annoying race condition in fe_cancel_op_foreach.\n");

    g_free (value);
    return TRUE;
}

static void
fe_kill_current_tree (FolderETree *ftree)
{
    g_hash_table_foreach_remove (ftree->scan_ops, fe_cancel_op_foreach, ftree);
    g_assert (g_hash_table_size (ftree->scan_ops) == 0);
}

static void
fe_destroy (GtkObject *obj)
{
    FolderETree *ftree = (FolderETree *) (obj);

    fe_kill_current_tree (ftree);

    g_hash_table_foreach_remove (ftree->subscribe_ops, fe_cancel_op_foreach, ftree);
    
    g_hash_table_destroy (ftree->scan_ops);
    g_hash_table_destroy (ftree->subscribe_ops);

    camel_object_unref (CAMEL_OBJECT (ftree->store));
    bonobo_object_unref (BONOBO_OBJECT (ftree->e_storage));

    g_free (ftree->search);
    g_free (ftree->service_name);
}

typedef gboolean (*bool_func_1) (ETreeModel *, ETreePath, int);
typedef gboolean (*bool_func_2) (ETreeModel *);

static void
folder_etree_class_init (GtkObjectClass *klass)
{
    ETreeModelClass  *etree_model_class = E_TREE_MODEL_CLASS (klass);

    folder_etree_parent_class = gtk_type_class (E_TREE_MEMORY_TYPE);

    klass->destroy                          = fe_destroy;

    etree_model_class->value_at             = fe_value_at;
    etree_model_class->set_value_at         = fe_set_value_at;
    etree_model_class->column_count         = fe_column_count;
    etree_model_class->duplicate_value      = fe_duplicate_value;
    etree_model_class->free_value           = fe_free_value;
    etree_model_class->initialize_value     = fe_init_value;
    etree_model_class->value_is_empty       = fe_value_is_empty;
    etree_model_class->value_to_string      = fe_value_to_string;
    etree_model_class->icon_at              = fe_icon_at;
    etree_model_class->is_editable          = (bool_func_1) fe_return_false;
    etree_model_class->has_save_id          = (bool_func_2) fe_return_false;
    etree_model_class->has_get_node_by_id   = (bool_func_2) fe_return_false;
    etree_model_class->get_first_child      = fe_get_first_child;
}

static void
folder_etree_init (GtkObject *object)
{
    FolderETree *ftree = (FolderETree *) object;

    e_tree_memory_set_node_destroy_func (E_TREE_MEMORY (ftree), (GFunc) g_free, ftree);

    ftree->scan_ops = g_hash_table_new (g_direct_hash, g_direct_equal);
    ftree->subscribe_ops = g_hash_table_new (g_direct_hash, g_direct_equal);

    ftree->search = g_strdup ("");
}

static FolderETree *
folder_etree_construct (FolderETree *ftree,
            CamelStore  *store)
{
    e_tree_memory_construct (E_TREE_MEMORY (ftree));
    
    ftree->store = store;
    camel_object_ref (CAMEL_OBJECT (store));
    
    ftree->service_name = camel_service_get_name (CAMEL_SERVICE (store), FALSE);
    
    ftree->e_storage = mail_lookup_storage (store); /* this gives us a ref */

    fe_create_root_node (ftree);

    return ftree;
}

static
E_MAKE_TYPE (folder_etree, "FolderETree", FolderETree, folder_etree_class_init, folder_etree_init, E_TREE_MEMORY_TYPE);

/* public */

static FolderETree *
folder_etree_new (CamelStore *store)
{
    FolderETree *ftree;

    ftree = gtk_type_new (folder_etree_get_type());
    ftree = folder_etree_construct (ftree, store);
    return ftree;
}

static void
folder_etree_clear_tree (FolderETree *ftree)
{
    e_tree_memory_freeze (E_TREE_MEMORY (ftree));
    e_tree_memory_node_remove (E_TREE_MEMORY (ftree), ftree->root);
    fe_create_root_node (ftree);
    e_tree_memory_thaw (E_TREE_MEMORY (ftree));
}

static void
folder_etree_set_search (FolderETree *ftree, const char *search)
{
    if (!strcmp (search, ftree->search))
        return;

    g_free (ftree->search);
    ftree->search = g_strdup (search);
    
    folder_etree_clear_tree (ftree);
}


static int
folder_etree_path_set_subscription (FolderETree *ftree, ETreePath path, gboolean subscribe)
{
    ftree_op_data *closure;
    ftree_node    *node;

    /* already in progress? */

    if (g_hash_table_lookup (ftree->subscribe_ops, path))
        return 0;

    /* noselect? */

    node = e_tree_memory_node_get_data (E_TREE_MEMORY (ftree), path);

    if (!ftree_node_subscribable (node))
        return -1;

    /* noop? */

    /* uh, this should be a not XOR or something */
    if ((ftree_node_subscribed (node) && subscribe) ||
        (!ftree_node_subscribed (node) && !subscribe))
        return 0;

    closure         = g_new (ftree_op_data, 1);
    closure->ftree  = ftree;
    closure->path   = path;
    closure->data   = node;
    closure->handle = -1;

    g_hash_table_insert (ftree->subscribe_ops, path, closure);

    closure->handle = subscribe_do_subscribe_folder (ftree->store,
                             ftree_node_get_full_name (node),
                             ftree_node_get_name (node),
                             subscribe,
                             fe_done_subscribing,
                             closure);
    return 0;
}

static int
folder_etree_path_toggle_subscription (FolderETree *ftree, ETreePath path)
{
    ftree_node *node = e_tree_memory_node_get_data (E_TREE_MEMORY (ftree), path);

    if (ftree_node_subscribed (node))
        return folder_etree_path_set_subscription (ftree, path, FALSE);
    else
        return folder_etree_path_set_subscription (ftree, path, TRUE);
}

/* ** StoreData ************************************************************ */

typedef struct _StoreData StoreData;

typedef void (*StoreDataStoreFunc) (StoreData *, CamelStore *, gpointer);

struct _StoreData {
    int refcount;
    char *uri;
    
    FolderETree *ftree;
    CamelStore *store;
    
    int request_id;
    
    GtkWidget *widget;
    StoreDataStoreFunc store_func;
    gpointer store_data;
};

static StoreData *
store_data_new (const char *uri)
{
    StoreData *sd;
    
    sd = g_new0 (StoreData, 1);
    sd->refcount = 1;
    sd->uri = g_strdup (uri);
    
    return sd;
}

static void
store_data_free (StoreData *sd)
{
    if (sd->request_id)
        mail_msg_cancel (sd->request_id);
    
    if (sd->widget)
        gtk_object_unref (GTK_OBJECT (sd->widget));
    
    if (sd->ftree)
        gtk_object_unref (GTK_OBJECT (sd->ftree));
    
    if (sd->store)
        camel_object_unref (CAMEL_OBJECT (sd->store));
    
    g_free (sd->uri);
    g_free (sd);
}

static void
store_data_ref (StoreData *sd)
{
    sd->refcount++;
}

static void
store_data_unref (StoreData *sd)
{
    if (sd->refcount <= 1) {
        store_data_free (sd);
    } else {
        sd->refcount--;
    }
}

static void
sd_got_store (char *uri, CamelStore *store, gpointer user_data)
{
    StoreData *sd = (StoreData *) user_data;
    
    sd->store = store;
    
    if (store) /* we can have exceptions getting the store... server is down, eg */
        camel_object_ref (CAMEL_OBJECT (sd->store));
    
    /* uh, so we might have a problem if this operation is cancelled. Unsure. */
    sd->request_id = 0;
    
    if (sd->store_func)
        (sd->store_func) (sd, sd->store, sd->store_data);
    
    store_data_unref (sd);
}

static void
store_data_async_get_store (StoreData *sd, StoreDataStoreFunc func, gpointer user_data)
{
    if (sd->request_id) {
        printf ("Already loading store, nooping\n");
        return;
    }
    
    if (sd->store) {
        /* um, is this the best behavior? */
        func (sd, sd->store, user_data);
        return;
    }
    
    sd->store_func = func;
    sd->store_data = user_data;
    store_data_ref (sd);
    sd->request_id = mail_get_store (sd->uri, sd_got_store, sd);
}

static void
store_data_cancel_get_store (StoreData *sd)
{
    g_return_if_fail (sd->request_id);

    mail_msg_cancel (sd->request_id);
    sd->request_id = 0;
}

static void
sd_toggle_cb (ETree *tree, int row, ETreePath path, int col, GdkEvent *event, gpointer user_data)
{
    StoreData *sd = (StoreData *) user_data;

    folder_etree_path_toggle_subscription (sd->ftree, path);
}

static GtkWidget *
store_data_get_widget (StoreData *sd)
{
    GtkWidget *tree;

    if (!sd->store) {
        d(printf ("store data can't get widget before getting store.\n"));
        return NULL;
    }

    if (sd->widget)
        return sd->widget;

    sd->ftree = folder_etree_new (sd->store);

    /* You annoy me, etree! */
    tree = gtk_widget_new (E_TREE_SCROLLED_TYPE,
                   "hadjustment", NULL,
                   "vadjustment", NULL,
                   NULL);

    tree = (GtkWidget *) e_tree_scrolled_construct_from_spec_file (E_TREE_SCROLLED (tree),
                                       E_TREE_MODEL (sd->ftree),
                                       subscribe_get_global_extras (),
                                       EVOLUTION_ETSPECDIR "/subscribe-dialog.etspec",
                                       NULL);
    e_tree_root_node_set_visible (e_tree_scrolled_get_tree(E_TREE_SCROLLED(tree)), TRUE);
    gtk_signal_connect (GTK_OBJECT (e_tree_scrolled_get_tree(E_TREE_SCROLLED (tree))),
                "double_click", GTK_SIGNAL_FUNC (sd_toggle_cb), sd);

    gtk_object_unref (GTK_OBJECT (global_extras));

    sd->widget = tree;
    gtk_object_ref (GTK_OBJECT (sd->widget));

    return sd->widget;
}

typedef struct _selection_closure {
    StoreData *sd;
    enum { SET, CLEAR, TOGGLE } mode;
} selection_closure;

static void
sd_subscribe_folder_foreach (int model_row, gpointer closure)
{
    selection_closure *sc   = (selection_closure *) closure;
    StoreData         *sd   = sc->sd;
    ETree             *tree = e_tree_scrolled_get_tree(E_TREE_SCROLLED(sd->widget));
    ETreePath          path = e_tree_node_at_row (tree, model_row);

    /* ignore results */
    switch (sc->mode) {
    case SET:
        folder_etree_path_set_subscription (sd->ftree, path, TRUE);
        break;
    case CLEAR:
        folder_etree_path_set_subscription (sd->ftree, path, FALSE);
        break;
    case TOGGLE:
        folder_etree_path_toggle_subscription (sd->ftree, path);
        break;
    }
}

static void
store_data_selection_set_subscription (StoreData *sd, gboolean subscribe)
{
    selection_closure sc;
    ETree *tree;
    
    sc.sd = sd;
    if (subscribe)
        sc.mode = SET;
    else
        sc.mode = CLEAR;

    tree = e_tree_scrolled_get_tree (E_TREE_SCROLLED (sd->widget));
    e_tree_selected_row_foreach (tree, sd_subscribe_folder_foreach, &sc);
}

#ifdef NEED_TOGGLE_SELECTION
static void
store_data_selection_toggle_subscription (StoreData *sd)
{
    selection_closure  sc;
    ETree             *tree;
    
    sc.sd   = sd;
    sc.mode = TOGGLE;

    tree = e_tree_scrolled_get_tree (E_TREE_SCROLLED (sd->widget));
    e_tree_selected_row_foreach (tree, sd_subscribe_folder_foreach, &sc);
}
#endif

static gboolean
store_data_mid_request (StoreData *sd)
{
    return (gboolean) sd->request_id;
}

/* ** yaay, SubscribeDialog ******************************************************* */

#define PARENT_TYPE (gtk_object_get_type ())

#ifdef JUST_FOR_TRANSLATORS
static char *str = N_("Folder");
#endif

#define STORE_DATA_KEY   "store-data"

struct _SubscribeDialogPrivate {
    GladeXML  *xml;
    GList     *store_list;

    StoreData *current_store;
    GtkWidget *current_widget;

    GtkWidget *default_widget;
    GtkWidget *none_item;
    GtkWidget *search_entry;
    GtkWidget *hbox;
    GtkWidget *filter_radio, *all_radio;
    GtkWidget *sub_button, *unsub_button, *refresh_button;
};

static GtkObjectClass *subscribe_dialog_parent_class;

static void
sc_refresh_pressed (GtkWidget *widget, gpointer user_data)
{
    SubscribeDialog *sc = SUBSCRIBE_DIALOG (user_data);

    if (sc->priv->current_store)
        folder_etree_clear_tree (sc->priv->current_store->ftree);
}

static void
sc_search_activated (GtkWidget *widget, gpointer user_data)
{
    SubscribeDialog *sc = SUBSCRIBE_DIALOG (user_data);
    StoreData       *store = sc->priv->current_store;
    char            *search;

    if (!store)
        return;

    search = e_utf8_gtk_entry_get_text (GTK_ENTRY (widget));
    folder_etree_set_search (store->ftree, search);
}

static void
sc_subscribe_pressed (GtkWidget *widget, gpointer user_data)
{
    SubscribeDialog *sc = SUBSCRIBE_DIALOG (user_data);
    StoreData       *store = sc->priv->current_store;

    if (!store)
        return;

    store_data_selection_set_subscription (store, TRUE);
}

static void
sc_unsubscribe_pressed (GtkWidget *widget, gpointer user_data)
{
    SubscribeDialog *sc = SUBSCRIBE_DIALOG (user_data);
    StoreData *store = sc->priv->current_store;

    if (!store)
        return;

    store_data_selection_set_subscription (store, FALSE);
}

static void
sc_all_toggled (GtkWidget *widget, gpointer user_data)
{
    SubscribeDialog *sc = SUBSCRIBE_DIALOG (user_data);
    StoreData       *store = sc->priv->current_store;

    if (!store)
        return;

    if (GTK_TOGGLE_BUTTON (widget)->active) {
        gtk_widget_set_sensitive (sc->priv->search_entry, FALSE);
        folder_etree_set_search (store->ftree, "");
    }
}

static void
sc_filter_toggled (GtkWidget *widget, gpointer user_data)
{
    SubscribeDialog *sc = SUBSCRIBE_DIALOG (user_data);
    StoreData       *store = sc->priv->current_store;

    if (!store)
        return;

    if (GTK_TOGGLE_BUTTON (widget)->active) {
        gtk_widget_set_sensitive (sc->priv->search_entry, TRUE);
        sc_search_activated (sc->priv->search_entry, sc);
    }
}

static void
populate_store_foreach (MailConfigService *service, SubscribeDialog *sc)
{
    StoreData            *sd;

    if (service->url == NULL || service->enabled == FALSE)
        return;

    sd = store_data_new (service->url);
    sc->priv->store_list = g_list_prepend (sc->priv->store_list, sd);
}

static void
kill_default_view (SubscribeDialog *sc)
{
    gtk_widget_hide (sc->priv->none_item);

    /* the entry will be set sensitive when one of the
     * radio buttons is activated, if necessary. */

    gtk_widget_set_sensitive (sc->priv->all_radio, TRUE);
    gtk_widget_set_sensitive (sc->priv->filter_radio, TRUE);
    gtk_widget_set_sensitive (sc->priv->sub_button, TRUE);
    gtk_widget_set_sensitive (sc->priv->unsub_button, TRUE);
    gtk_widget_set_sensitive (sc->priv->refresh_button, TRUE);
}

static void
sc_selection_changed (GtkObject *obj, gpointer user_data)
{
    SubscribeDialog *sc = SUBSCRIBE_DIALOG (user_data);
    gboolean sensitive;

    if (e_selection_model_selected_count (E_SELECTION_MODEL (obj)))
        sensitive = TRUE;
    else
        sensitive = FALSE;

    gtk_widget_set_sensitive (sc->priv->sub_button, sensitive);
    gtk_widget_set_sensitive (sc->priv->unsub_button, sensitive);
}

static void
menu_item_selected (GtkMenuItem *item, gpointer user_data)
{
    SubscribeDialog *sc = SUBSCRIBE_DIALOG (user_data);
    StoreData       *sd = gtk_object_get_data (GTK_OBJECT (item), STORE_DATA_KEY);

    g_return_if_fail (sd);

    if (sd->widget == NULL) {
        GtkWidget *widget;
        ESelectionModel *esm;
        ETree *tree;

        widget = store_data_get_widget (sd);
        gtk_box_pack_start (GTK_BOX (sc->priv->hbox), widget, TRUE, TRUE, 0);

        tree = e_tree_scrolled_get_tree (E_TREE_SCROLLED (widget));
        esm = e_tree_get_selection_model (tree);
        gtk_signal_connect (GTK_OBJECT (esm), "selection_changed", sc_selection_changed, sc);
        sc_selection_changed ((GtkObject *)esm, sc);
    }

    if (sc->priv->current_widget == sc->priv->default_widget)
        kill_default_view (sc);

    gtk_widget_hide (sc->priv->current_widget);
    gtk_widget_show (sd->widget);
    sc->priv->current_widget = sd->widget;
    sc->priv->current_store  = sd;

    if (*sd->ftree->search) {
        e_utf8_gtk_entry_set_text (GTK_ENTRY (sc->priv->search_entry), sd->ftree->search);
        gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (sc->priv->filter_radio), TRUE);
    } else {
        e_utf8_gtk_entry_set_text (GTK_ENTRY (sc->priv->search_entry), "");
        gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (sc->priv->all_radio), TRUE);
    }
}

static void
dummy_item_selected (GtkMenuItem *item, gpointer user_data)
{
    SubscribeDialog *sc = SUBSCRIBE_DIALOG (user_data);

    gtk_widget_hide (sc->priv->current_widget);
    gtk_widget_show (sc->priv->default_widget);
    sc->priv->current_widget = sc->priv->default_widget;
    sc->priv->current_store  = NULL;

    e_utf8_gtk_entry_set_text (GTK_ENTRY (sc->priv->search_entry), "");
}

/* wonderful */

static void
got_sd_store (StoreData *sd, CamelStore *store, gpointer data)
{
    if (store && camel_store_supports_subscriptions (store))
        gtk_widget_show (GTK_WIDGET (data));
}

/* FIXME: if there aren't any stores that are subscribable, the option
 * menu will only have the "No server selected" item and the user will
 * be confused. */

static void
populate_store_list (SubscribeDialog *sc)
{
    const GSList *news;
    GSList       *sources;
    GList        *iter;
    GtkWidget    *menu;
    GtkWidget    *omenu;

    sources = mail_config_get_sources ();
    g_slist_foreach (sources, (GFunc) populate_store_foreach, sc);
    g_slist_free (sources);
    
    news = mail_config_get_news ();
    g_slist_foreach ((GSList *) news, (GFunc) populate_store_foreach, sc);

    menu = gtk_menu_new ();

    for (iter = sc->priv->store_list; iter; iter = iter->next) {
        GtkWidget *item;
        CamelURL *url;
        char *string;

        url = camel_url_new (((StoreData *) iter->data)->uri, NULL);
        string = camel_url_to_string (url, CAMEL_URL_HIDE_ALL);
        camel_url_free (url);
        item = gtk_menu_item_new_with_label (string);
        store_data_async_get_store (iter->data, got_sd_store, item);
        gtk_object_set_data (GTK_OBJECT (item), STORE_DATA_KEY, iter->data);
        gtk_signal_connect (GTK_OBJECT (item), "activate", menu_item_selected, sc);
        g_free (string);

        gtk_menu_prepend (GTK_MENU (menu), item);
    }

    sc->priv->none_item = gtk_menu_item_new_with_label (_("No server has been selected"));
    gtk_signal_connect (GTK_OBJECT (sc->priv->none_item), "activate", dummy_item_selected, sc);
    gtk_widget_show (sc->priv->none_item);
    gtk_menu_prepend (GTK_MENU (menu), sc->priv->none_item);

    gtk_widget_show (menu);

    omenu = glade_xml_get_widget (sc->priv->xml, "store_menu");
    gtk_option_menu_set_menu (GTK_OPTION_MENU (omenu), menu);
}

static void
subscribe_dialog_destroy (GtkObject *object)
{
    SubscribeDialog *sc;
    GList *iter;
    
    sc = SUBSCRIBE_DIALOG (object);
    
    for (iter = sc->priv->store_list; iter; iter = iter->next) {
        StoreData *data = iter->data;
        
        if (store_data_mid_request (data))
            store_data_cancel_get_store (data);
        
        data->store_func = NULL;
        
        store_data_unref (data);
    }
    
    g_list_free (sc->priv->store_list);
    
    gtk_object_unref (GTK_OBJECT (sc->priv->xml));

    g_free (sc->priv);

    subscribe_dialog_parent_class->destroy (object);
}

static void
subscribe_dialog_class_init (GtkObjectClass *object_class)
{
    object_class->destroy = subscribe_dialog_destroy;

    subscribe_dialog_parent_class = gtk_type_class (PARENT_TYPE);
}

static void
subscribe_dialog_init (GtkObject *object)
{
    SubscribeDialog *sc = SUBSCRIBE_DIALOG (object);

    sc->priv = g_new0 (SubscribeDialogPrivate, 1);
}

static GtkWidget *
sc_create_default_widget (void)
{
    GtkWidget *label;
    GtkWidget *viewport;

    label = gtk_label_new (_("Please select a server."));
    gtk_widget_show (label);

    viewport = gtk_viewport_new (NULL, NULL);
    gtk_viewport_set_shadow_type (GTK_VIEWPORT (viewport), GTK_SHADOW_IN);
    gtk_container_add (GTK_CONTAINER (viewport), label);

    return viewport;
}

static void
subscribe_dialog_construct (GtkObject *object)
{
    SubscribeDialog *sc = SUBSCRIBE_DIALOG (object);

    /* Load the XML */

    sc->priv->xml            = glade_xml_new (EVOLUTION_GLADEDIR "/subscribe-dialog.glade", NULL);

    sc->app                  = glade_xml_get_widget (sc->priv->xml, "Manage Subscriptions");
    sc->priv->hbox           = glade_xml_get_widget (sc->priv->xml, "tree_box");
    sc->priv->search_entry   = glade_xml_get_widget (sc->priv->xml, "search_entry");
    sc->priv->filter_radio   = glade_xml_get_widget (sc->priv->xml, "filter_radio");
    sc->priv->all_radio      = glade_xml_get_widget (sc->priv->xml, "all_radio");
    sc->priv->sub_button     = glade_xml_get_widget (sc->priv->xml, "subscribe_button");
    sc->priv->unsub_button   = glade_xml_get_widget (sc->priv->xml, "unsubscribe_button");
    sc->priv->refresh_button = glade_xml_get_widget (sc->priv->xml, "refresh_button");

    /* create default view */

    sc->priv->default_widget = sc_create_default_widget();
    sc->priv->current_widget = sc->priv->default_widget;
    gtk_box_pack_start (GTK_BOX (sc->priv->hbox), sc->priv->default_widget, TRUE, TRUE, 0);
    gtk_widget_show (sc->priv->default_widget);

    gtk_widget_set_sensitive (sc->priv->all_radio, FALSE);
    gtk_widget_set_sensitive (sc->priv->filter_radio, FALSE);
    gtk_widget_set_sensitive (sc->priv->search_entry, FALSE);
    gtk_widget_set_sensitive (sc->priv->sub_button, FALSE);
    gtk_widget_set_sensitive (sc->priv->unsub_button, FALSE);
    gtk_widget_set_sensitive (sc->priv->refresh_button, FALSE);

    /* hook up some signals */

    gtk_signal_connect (GTK_OBJECT (sc->priv->search_entry), "activate", sc_search_activated, sc);
    gtk_signal_connect (GTK_OBJECT (sc->priv->sub_button), "clicked", sc_subscribe_pressed, sc);
    gtk_signal_connect (GTK_OBJECT (sc->priv->unsub_button), "clicked", sc_unsubscribe_pressed, sc);
    gtk_signal_connect (GTK_OBJECT (sc->priv->refresh_button), "clicked", sc_refresh_pressed, sc);
    gtk_signal_connect (GTK_OBJECT (sc->priv->all_radio), "toggled", sc_all_toggled, sc);
    gtk_signal_connect (GTK_OBJECT (sc->priv->filter_radio), "toggled", sc_filter_toggled, sc);

    /* Get the list of stores */

    populate_store_list (sc);
}

GtkObject *
subscribe_dialog_new (void)
{
    SubscribeDialog *subscribe_dialog;

    subscribe_dialog = gtk_type_new (SUBSCRIBE_DIALOG_TYPE);
    subscribe_dialog_construct (GTK_OBJECT (subscribe_dialog));

    return GTK_OBJECT (subscribe_dialog);
}

E_MAKE_TYPE (subscribe_dialog, "SubscribeDialog", SubscribeDialog, subscribe_dialog_class_init, subscribe_dialog_init, PARENT_TYPE);

void
subscribe_dialog_run_and_close (SubscribeDialog *dialog)
{
    gnome_dialog_run_and_close (GNOME_DIALOG (dialog->app));
}