src/plugins/vcalendar/vcalendar.c

   1 /*
   2  * Claws Mail -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2018 Colin Leroy and the Claws Mail team
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 3 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  18  */
  19
  20 #ifdef HAVE_CONFIG_H
  21 #  include "config.h"
  22 #include "claws-features.h"
  23 #endif
  24
  25 #include <stddef.h>
  26 #include <glib.h>
  27 #include <glib/gi18n.h>
  28
  29 #include <libical/ical.h>
  30 #include <gtk/gtk.h>
  31
  32 #if USE_PTHREAD
  33 #include "pthread.h"
  34 #endif
  35
  36 #include "folder.h"
  37 #include "folder_item_prefs.h"
  38 #include "mimeview.h"
  39 #include "file-utils.h"
  40 #include "utils.h"
  41 #include "vcalendar.h"
  42 #include "vcal_manager.h"
  43 #include "vcal_folder.h"
  44 #include "vcal_meeting_gtk.h"
  45 #include "vcal_interface.h"
  46 #include "prefs_account.h"
  47 #include "prefs_common.h"
  48 #include "menu.h"
  49 #include "account.h"
  50 #include "codeconv.h"
  51 #include "xml.h"
  52 #include "xmlprops.h"
  53 #include "alertpanel.h"
  54 #include "vcal_prefs.h"
  55 #include "statusbar.h"
  56 #include "timing.h"
  57 #include "inc.h"
  58
  59 MimeViewerFactory vcal_viewer_factory;
  60
  61 static void create_meeting_from_message_cb_ui(GtkAction *action, gpointer data);
  62
  63 static GdkColor uri_color = {
  64         (gulong)0,
  65         (gushort)0,
  66         (gushort)0,
  67         (gushort)0
  68 };
  69
  70 struct _VCalViewer
  71 {
  72         MimeViewer mimeviewer;
  73
  74         gchar     *file;
  75         MimeInfo  *mimeinfo;
  76         gchar     *tmpfile;
  77         VCalEvent *event;
  78
  79         GtkWidget *scrolledwin;
  80         GtkWidget *table;
  81         GtkWidget *type;
  82         GtkWidget *who;
  83         GtkWidget *start;
  84         GtkWidget *end;
  85         GtkWidget *location;
  86         GtkWidget *summary;
  87         GtkWidget *description;
  88         gchar     *url;
  89         GtkWidget *answer;
  90         GtkWidget *button;
  91         GtkWidget *reedit;
  92         GtkWidget *cancel;
  93         GtkWidget *uribtn;
  94         GtkWidget *attendees;
  95         GtkWidget *unavail_box;
  96 };
  97
  98 static GtkActionEntry vcalendar_main_menu[] = {{
  99         "Message/CreateMeeting",
 100         NULL, N_("Create meeting from message..."), NULL, NULL, G_CALLBACK(create_meeting_from_message_cb_ui)
 101 }};
 102
 103 static void create_meeting_from_message_cb_ui(GtkAction *action, gpointer data)
 104 {
 105         MainWindow *mainwin = mainwindow_get_mainwindow();
 106         SummaryView *summaryview = mainwin->summaryview;
 107         GSList *msglist = summary_get_selected_msg_list(summaryview);
 108         FolderItem *item = NULL;
 109         GSList *cur;
 110         gchar *msg;
 111         gint total=0;
 112
 113         if (summary_is_locked(summaryview) || !msglist) {
 114                 if (msglist)
 115                         g_slist_free(msglist);
 116                 return;
 117         }
 118         total = g_slist_length(msglist);
 119
 120         msg = g_strdup_printf(_("You are about to create %d "
 121                                        "meetings, one by one. Do you "
 122                                        "want to continue?"),
 123                                        total);
 124         if (total > 9
 125         &&  alertpanel(_("Warning"), msg, GTK_STOCK_CANCEL, GTK_STOCK_YES, NULL,
 126                 ALERTFOCUS_SECOND)
 127             != G_ALERTALTERNATE) {
 128                 g_free(msg);
 129                 return;
 130         }
 131         g_free(msg);
 132
 133         main_window_cursor_wait(summaryview->mainwin);
 134         gtk_cmclist_freeze(GTK_CMCLIST(summaryview->ctree));
 135         folder_item_update_freeze();
 136         inc_lock();
 137
 138         item = summaryview->folder_item;
 139
 140         STATUSBAR_PUSH(mainwin, _("Creating meeting..."));
 141
 142         for (cur = msglist; cur; cur = cur->next) {
 143                 MsgInfo *msginfo = procmsg_msginfo_get_full_info((MsgInfo *)cur->data);
 144                 VCalEvent *event = NULL;
 145                 FILE *fp = NULL;
 146
 147                 if (MSG_IS_ENCRYPTED(msginfo->flags)) {
 148                         fp = procmime_get_first_encrypted_text_content(msginfo);
 149                 } else {
 150                         fp = procmime_get_first_text_content(msginfo);
 151                 }
 152
 153                 if (fp) {
 154                         gchar *uid;
 155                         time_t t = time(NULL);
 156                         time_t t2 = t+3600;
 157                         gchar *org = NULL;
 158                         gchar *orgname = NULL;
 159                         gchar *summary = g_strdup(msginfo->subject ? msginfo->subject:_("no subject"));
 160                         gchar *description = file_read_stream_to_str(fp);
 161                         gchar *dtstart = g_strdup(icaltime_as_ical_string(icaltime_from_timet_with_zone(t, FALSE, NULL)));
 162                         gchar *dtend = g_strdup(icaltime_as_ical_string(icaltime_from_timet_with_zone(t2, FALSE, NULL)));
 163                         gchar *recur = NULL;
 164                         gchar *tzid = g_strdup("UTC");
 165                         gchar *url = NULL;
 166                         gint method = ICAL_METHOD_REQUEST;
 167                         gint sequence = 1;
 168                         PrefsAccount *account = NULL;
 169
 170                         claws_fclose(fp);
 171
 172                         if (item && item->prefs && item->prefs->enable_default_account)
 173                                 account = account_find_from_id(item->prefs->default_account);
 174
 175                         if (!account)
 176                                 account = account_get_cur_account();
 177
 178                         if (!account)
 179                                 goto bail;
 180
 181                         org = g_strdup(account->address);
 182
 183                         uid = prefs_account_generate_msgid(account);
 184
 185                         event = vcal_manager_new_event(uid,
 186                                         org, NULL, NULL/*location*/, summary, description,
 187                                         dtstart, dtend, recur, tzid, url, method, sequence,
 188                                         ICAL_VTODO_COMPONENT);
 189                         g_free(uid);
 190
 191                         /* hack to get default hours */
 192                         g_free(event->dtstart);
 193                         g_free(event->dtend);
 194                         event->dtstart = NULL;
 195                         event->dtend = NULL;
 196
 197                         vcal_meeting_create(event);
 198                         vcal_manager_free_event(event);
 199
 200 bail:
 201                         g_free(org);
 202                         g_free(orgname);
 203                         g_free(summary);
 204                         g_free(description);
 205                         g_free(dtstart);
 206                         g_free(dtend);
 207                         g_free(recur);
 208                         g_free(tzid);
 209                         g_free(url);
 210                 }
 211
 212                 procmsg_msginfo_free(&msginfo);
 213         }
 214
 215         statusbar_progress_all(0,0,0);
 216         STATUSBAR_POP(mainwin);
 217         inc_unlock();
 218         folder_item_update_thaw();
 219         gtk_cmclist_thaw(GTK_CMCLIST(summaryview->ctree));
 220         main_window_cursor_normal(summaryview->mainwin);
 221         g_slist_free(msglist);
 222 }
 223
 224 static gchar *get_tmpfile(VCalViewer *vcalviewer)
 225 {
 226         gchar *tmpfile = NULL;
 227
 228         if (!vcalviewer->tmpfile) {
 229                 tmpfile = procmime_get_tmp_file_name(vcalviewer->mimeinfo);
 230                 debug_print("creating %s\n", tmpfile);
 231
 232                 if (procmime_get_part(tmpfile, vcalviewer->mimeinfo) < 0) {
 233                         g_warning("Can't get mimepart file");
 234                         g_free(tmpfile);
 235                         return NULL;
 236                 }
 237                 vcalviewer->tmpfile = tmpfile;
 238         }
 239
 240         return vcalviewer->tmpfile;
 241 }
 242
 243 static GtkWidget *vcal_viewer_get_widget(MimeViewer *_mimeviewer)
 244 {
 245         VCalViewer *vcalviewer = (VCalViewer *) _mimeviewer;
 246
 247         debug_print("vcal_viewer_get_widget\n");
 248         gtk_widget_show_all(vcalviewer->scrolledwin);
 249         return vcalviewer->scrolledwin;
 250 }
 251
 252 static void vcal_viewer_clear_viewer(MimeViewer *_mimeviewer)
 253 {
 254         VCalViewer *vcalviewer = (VCalViewer *) _mimeviewer;
 255
 256         debug_print("vcal_viewer_clear_viewer\n");
 257
 258         g_free(vcalviewer->file);
 259         vcalviewer->file = NULL;
 260         if (vcalviewer->tmpfile) {
 261                 debug_print("unlinking %s\n", vcalviewer->tmpfile);
 262                 g_unlink(vcalviewer->tmpfile);
 263                 g_free(vcalviewer->tmpfile);
 264                 vcalviewer->tmpfile = NULL;
 265         }
 266         vcalviewer->mimeinfo = NULL;
 267 }
 268
 269 static VCalEvent *vcalviewer_get_component(const gchar *file, const gchar *charset)
 270 {
 271         gchar *compstr = NULL;
 272         VCalEvent *event = NULL;
 273         FILE *fp;
 274         GByteArray *array;
 275         gchar buf[BUFSIZ];
 276         gint n_read;
 277
 278         g_return_val_if_fail(file != NULL, NULL);
 279
 280         if ((fp = claws_fopen(file, "rb")) == NULL) {
 281                 FILE_OP_ERROR(file, "claws_fopen");
 282                 return NULL;
 283         }
 284
 285         array = g_byte_array_new();
 286
 287         while ((n_read = claws_fread(buf, sizeof(gchar), sizeof(buf), fp)) > 0) {
 288                 if (n_read < sizeof(buf) && claws_ferror(fp))
 289                         break;
 290                 g_byte_array_append(array, (guchar *)buf, n_read);
 291         }
 292
 293         if (claws_ferror(fp)) {
 294                 FILE_OP_ERROR("file stream", "claws_fread");
 295                 g_byte_array_free(array, TRUE);
 296                 claws_fclose(fp);
 297                 return NULL;
 298         }
 299
 300         buf[0] = '\0';
 301         g_byte_array_append(array, (guchar *)buf, 1);
 302         compstr = (gchar *)array->data;
 303         g_byte_array_free(array, FALSE);
 304
 305         claws_fclose(fp);
 306
 307         if (compstr) {
 308                 event = vcal_get_event_from_ical(compstr, charset);
 309                 g_free(compstr);
 310         }
 311
 312         return event;
 313 }
 314
 315 #define GTK_LABEL_SET_TEXT_TRIMMED(label, text) {               \
 316         gchar *tmplbl = strretchomp(g_strdup(text));            \
 317         gtk_label_set_text(label, tmplbl);                      \
 318         g_free(tmplbl);                                         \
 319 }
 320
 321 static void vcalviewer_answer_set_choices(VCalViewer *vcalviewer, VCalEvent *event, icalproperty_method method);
 322
 323 static void vcalviewer_reset(VCalViewer *vcalviewer)
 324 {
 325         GTK_LABEL_SET_TEXT_TRIMMED(GTK_LABEL(vcalviewer->type), "-");
 326         GTK_LABEL_SET_TEXT_TRIMMED(GTK_LABEL(vcalviewer->who), "-");
 327         GTK_LABEL_SET_TEXT_TRIMMED(GTK_LABEL(vcalviewer->location), "-");
 328         GTK_LABEL_SET_TEXT_TRIMMED(GTK_LABEL(vcalviewer->summary), "-");
 329         GTK_LABEL_SET_TEXT_TRIMMED(GTK_LABEL(vcalviewer->description), "-");
 330         GTK_LABEL_SET_TEXT_TRIMMED(GTK_LABEL(vcalviewer->start), "-");
 331         GTK_LABEL_SET_TEXT_TRIMMED(GTK_LABEL(vcalviewer->end), "-");
 332         GTK_LABEL_SET_TEXT_TRIMMED(GTK_LABEL(vcalviewer->attendees), "-");
 333         g_free(vcalviewer->url);
 334         vcalviewer->url = NULL;
 335         gtk_widget_hide(vcalviewer->uribtn);
 336         vcalviewer_answer_set_choices(vcalviewer, NULL, ICAL_METHOD_CANCEL);
 337 }
 338
 339 static void vcalviewer_show_error(VCalViewer *vcalviewer, const gchar *msg)
 340 {
 341         GTK_LABEL_SET_TEXT_TRIMMED(GTK_LABEL(vcalviewer->type), msg);
 342 }
 343
 344 static void vcalviewer_hide_error(VCalViewer *vcalviewer)
 345 {
 346         GTK_LABEL_SET_TEXT_TRIMMED(GTK_LABEL(vcalviewer->type), "-");
 347 }
 348
 349 static void vcalviewer_show_unavailable(VCalViewer *vcalviewer, gboolean visi)
 350 {
 351         if (visi)
 352                 gtk_widget_show_all(vcalviewer->unavail_box);
 353         else
 354                 gtk_widget_hide(vcalviewer->unavail_box);
 355 }
 356
 357 static void vcalviewer_answer_set_choices(VCalViewer *vcalviewer, VCalEvent *event, icalproperty_method method)
 358 {
 359         int i = 0;
 360
 361         gtk_widget_hide(vcalviewer->reedit);
 362         gtk_widget_hide(vcalviewer->cancel);
 363         gtk_widget_hide(vcalviewer->answer);
 364         gtk_widget_hide(vcalviewer->button);
 365
 366         for (i = 0; i < 3; i++)
 367                 gtk_combo_box_text_remove(GTK_COMBO_BOX_TEXT(vcalviewer->answer), 0);
 368
 369         vcalviewer_show_unavailable(vcalviewer, FALSE);
 370
 371         if (method == ICAL_METHOD_REQUEST && event && !event->rec_occurrence) {
 372                 PrefsAccount *account = vcal_manager_get_account_from_event(event);
 373
 374                 if (!account)
 375                         account = vcal_manager_get_account_from_event(vcalviewer->event);
 376
 377                 if (!account && event) {
 378                         account = account_get_default();
 379                         vcal_manager_update_answer(event, account->address,
 380                                         account->name,
 381                                         ICAL_PARTSTAT_NEEDSACTION,
 382                                         ICAL_CUTYPE_INDIVIDUAL);
 383                 }
 384                 if (account) {
 385                         gtk_combo_box_text_append_text(GTK_COMBO_BOX_TEXT(vcalviewer->answer), _("Accept"));
 386                         gtk_combo_box_text_append_text(GTK_COMBO_BOX_TEXT(vcalviewer->answer), _("Tentatively accept"));
 387                         gtk_combo_box_text_append_text(GTK_COMBO_BOX_TEXT(vcalviewer->answer), _("Decline"));
 388                         gtk_widget_set_sensitive(vcalviewer->answer, TRUE);
 389                         gtk_widget_set_sensitive(vcalviewer->button, TRUE);
 390                         gtk_widget_show(vcalviewer->answer);
 391                         gtk_widget_show(vcalviewer->button);
 392                 } else {
 393                         gtk_combo_box_text_append_text(GTK_COMBO_BOX_TEXT(vcalviewer->answer), "-");
 394                         gtk_widget_set_sensitive(vcalviewer->answer, FALSE);
 395                         gtk_widget_set_sensitive(vcalviewer->button, FALSE);
 396                 }
 397         } else {
 398                 gtk_combo_box_text_append_text(GTK_COMBO_BOX_TEXT(vcalviewer->answer), "-");
 399                 gtk_widget_set_sensitive(vcalviewer->answer, FALSE);
 400                 gtk_widget_set_sensitive(vcalviewer->button, FALSE);
 401         }
 402         gtk_combo_box_set_active(GTK_COMBO_BOX(vcalviewer->answer), 0);
 403
 404         if (event && event->method == ICAL_METHOD_REQUEST) {
 405                 PrefsAccount *account = vcal_manager_get_account_from_event(event);
 406                 gchar *internal_ifb = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S,
 407                                         "vcalendar", G_DIR_SEPARATOR_S,
 408                                         "internal.ifb", NULL);
 409                 gchar *myfb = file_read_to_str(internal_ifb);
 410                 g_free(internal_ifb);
 411                 if (account) {
 412                         icalparameter_partstat answer =
 413                                 vcal_manager_get_reply_for_attendee(event, account->address);
 414
 415                         if (answer == ICAL_PARTSTAT_ACCEPTED)
 416                                 gtk_combo_box_set_active(GTK_COMBO_BOX(vcalviewer->answer), 0);
 417                         if (answer == ICAL_PARTSTAT_TENTATIVE)
 418                                 gtk_combo_box_set_active(GTK_COMBO_BOX(vcalviewer->answer), 1);
 419                         if (answer == ICAL_PARTSTAT_DECLINED)
 420                                 gtk_combo_box_set_active(GTK_COMBO_BOX(vcalviewer->answer), 2);
 421                         if (event->dtstart && event->dtend && myfb && *myfb
 422                         && answer != ICAL_PARTSTAT_ACCEPTED
 423                         && answer != ICAL_PARTSTAT_TENTATIVE) {
 424                                 if (!attendee_available(NULL, event->dtstart, event->dtend, myfb))
 425                                         vcalviewer_show_unavailable(vcalviewer, TRUE);
 426                         }
 427                 }
 428                 g_free(myfb);
 429         }
 430
 431         g_free(vcalviewer->url);
 432         if (event && event->url && *(event->url)) {
 433                 vcalviewer->url = g_strdup(event->url);
 434                 gtk_widget_show(vcalviewer->uribtn);
 435         } else {
 436                 vcalviewer->url = NULL;
 437                 gtk_widget_hide(vcalviewer->uribtn);
 438         }
 439 }
 440
 441 static FolderItem *vcalendar_get_current_item(void)
 442 {
 443         MainWindow *mainwin = mainwindow_get_mainwindow();
 444         FolderItem *item = NULL;
 445         Folder *folder = folder_find_from_name (PLUGIN_NAME, vcal_folder_get_class());
 446
 447         if (mainwin) {
 448                 item = mainwin->summaryview->folder_item;
 449                 if (item->folder == folder)
 450                         return item;
 451                 else
 452                         return folder->inbox;
 453         } else {
 454                 return NULL;
 455         }
 456 }
 457
 458 void vcalviewer_display_event (VCalViewer *vcalviewer, VCalEvent *event)
 459 {
 460         GSList *list = NULL;
 461         gchar *attendees = NULL;
 462         gboolean mine = FALSE;
 463         gchar *label = NULL;
 464         gboolean save_evt = FALSE;
 465         FolderItem *item = vcalendar_get_current_item();
 466         if (!event)
 467                 return;
 468         if (!vcalviewer)
 469                 return;
 470
 471 /* general */
 472         if (event->type == ICAL_VTODO_COMPONENT) {
 473
 474                 label = g_strjoin(" ", _("You have a Todo item."),
 475                                 _("Details follow:"), NULL);
 476                 GTK_LABEL_SET_TEXT_TRIMMED(GTK_LABEL(vcalviewer->type), label);
 477
 478         } else if (event->method == ICAL_METHOD_REQUEST) {
 479
 480                 if (account_find_from_address(event->organizer, FALSE)) {
 481                         label = g_strjoin(" ", _("You have created a meeting."),
 482                                         _("Details follow:"), NULL);
 483                         GTK_LABEL_SET_TEXT_TRIMMED(GTK_LABEL(vcalviewer->type), label);
 484                         mine = TRUE;
 485                 } else {
 486                         label = g_strjoin(" ", _("You have been invited to a meeting."),
 487                                                 _("Details follow:"), NULL);
 488                         GTK_LABEL_SET_TEXT_TRIMMED(GTK_LABEL(vcalviewer->type), label);
 489                 }
 490
 491         } else if (event->method == ICAL_METHOD_CANCEL) {
 492
 493                 label = g_strjoin(" ",
 494                                 _("A meeting to which you had been invited has been cancelled."),
 495                                 _("Details follow:"), NULL);
 496                 GTK_LABEL_SET_TEXT_TRIMMED(GTK_LABEL(vcalviewer->type), label);
 497                 save_evt = TRUE;
 498                 vcalendar_refresh_folder_contents(item);
 499         } else if (event->method == ICAL_METHOD_REPLY) {
 500                 /* don't change label */
 501         } else {
 502
 503                 label = g_strjoin(" ", _("You have been forwarded an appointment."),
 504                                 _("Details follow:"), NULL);
 505                 GTK_LABEL_SET_TEXT_TRIMMED(GTK_LABEL(vcalviewer->type), label);
 506         }
 507
 508         g_free(label);
 509
 510 /* organizer */
 511         if (event->orgname && *(event->orgname)
 512         &&  event->organizer && *(event->organizer)) {
 513                 gchar *addr = g_strconcat(event->orgname, " <", event->organizer, ">", NULL);
 514                 GTK_LABEL_SET_TEXT_TRIMMED(GTK_LABEL(vcalviewer->who), addr);
 515                 g_free(addr);
 516         } else if (event->organizer && *(event->organizer)) {
 517                 GTK_LABEL_SET_TEXT_TRIMMED(GTK_LABEL(vcalviewer->who), event->organizer);
 518         } else {
 519                 GTK_LABEL_SET_TEXT_TRIMMED(GTK_LABEL(vcalviewer->who), "-");
 520         }
 521
 522 /* location */
 523         if (event->location && *(event->location)) {
 524                 GTK_LABEL_SET_TEXT_TRIMMED(GTK_LABEL(vcalviewer->location), event->location);
 525         } else {
 526                 GTK_LABEL_SET_TEXT_TRIMMED(GTK_LABEL(vcalviewer->location), "-");
 527         }
 528
 529 /* summary */
 530         if (event->summary && *(event->summary)) {
 531                 GTK_LABEL_SET_TEXT_TRIMMED(GTK_LABEL(vcalviewer->summary), event->summary);
 532         } else {
 533                 GTK_LABEL_SET_TEXT_TRIMMED(GTK_LABEL(vcalviewer->summary), "-");
 534         }
 535
 536 /* description */
 537         if (event->description && *(event->description)) {
 538                 GTK_LABEL_SET_TEXT_TRIMMED(GTK_LABEL(vcalviewer->description), event->description);
 539         } else {
 540                 GTK_LABEL_SET_TEXT_TRIMMED(GTK_LABEL(vcalviewer->description), "-");
 541         }
 542
 543 /* url */
 544         g_free(vcalviewer->url);
 545         if (event->url && *(event->url)) {
 546                 vcalviewer->url = g_strdup(event->url);
 547                 gtk_widget_show(vcalviewer->uribtn);
 548         } else {
 549                 vcalviewer->url = NULL;
 550                 gtk_widget_hide(vcalviewer->uribtn);
 551         }
 552
 553 /* start */
 554         if (event->start && *(event->start)) {
 555                 if (event->recur && *(event->recur)) {
 556                         gchar *tmp = g_strdup_printf(g_strconcat("%s <span weight=\"bold\">",
 557                                                         _("(this event recurs)"),"</span>", NULL),
 558                                         event->start);
 559                         GTK_LABEL_SET_TEXT_TRIMMED(GTK_LABEL(vcalviewer->start), tmp);
 560                         gtk_label_set_use_markup(GTK_LABEL(vcalviewer->start), TRUE);
 561                         g_free(tmp);
 562                 } else if (event->rec_occurrence) {
 563                         gchar *tmp = g_strdup_printf(g_strconcat("%s <span weight=\"bold\">",
 564                                                         _("(this event is part of a recurring event)"),
 565                                                         "</span>", NULL),
 566                                         event->start);
 567                         GTK_LABEL_SET_TEXT_TRIMMED(GTK_LABEL(vcalviewer->start), tmp);
 568                         gtk_label_set_use_markup(GTK_LABEL(vcalviewer->start), TRUE);
 569                         g_free(tmp);
 570                 } else {
 571                         GTK_LABEL_SET_TEXT_TRIMMED(GTK_LABEL(vcalviewer->start), event->start);
 572                 }
 573         } else {
 574                 GTK_LABEL_SET_TEXT_TRIMMED(GTK_LABEL(vcalviewer->start), "-");
 575         }
 576
 577 /* end */
 578         if (event->end && *(event->end)) {
 579                 GTK_LABEL_SET_TEXT_TRIMMED(GTK_LABEL(vcalviewer->end), event->end);
 580         } else {
 581                 GTK_LABEL_SET_TEXT_TRIMMED(GTK_LABEL(vcalviewer->end), "-");
 582         }
 583
 584 /* attendees */
 585         attendees = g_strdup("");
 586         for (list = vcal_manager_get_answers_emails(event);
 587              list && list->data; list = list->next) {
 588                 gchar *attendee = (gchar *)list->data;
 589                 gchar *name = vcal_manager_get_attendee_name(event, attendee);
 590                 gchar *ename = g_markup_printf_escaped("%s", name?name:"");
 591                 gchar *eatt = g_markup_printf_escaped("%s", attendee);
 592                 icalparameter_partstat acode = vcal_manager_get_reply_for_attendee(event, attendee);
 593                 gchar *answer = vcal_manager_get_reply_text_for_attendee(event, attendee);
 594                 gchar *type = vcal_manager_get_cutype_text_for_attendee(event, attendee);
 595                 gchar *tmp = NULL;
 596                 gint e_len, n_len;
 597                 tmp = g_strdup_printf(
 598                                 "%s%s&lt;%s&gt; (%s, <span%s>%s</span>)",
 599                                 (ename && *(ename))?ename:"",
 600                                 (ename && *(ename))?" ":"",
 601                                 (eatt && *(eatt))?eatt:"",
 602                                 (type && *(type))?type:"",
 603                                 (acode != ICAL_PARTSTAT_ACCEPTED ? " foreground=\"red\"":""),
 604                                 (answer && *(answer))?answer:"");
 605                 e_len = strlen(attendees);
 606                 n_len = strlen(tmp);
 607                 if (e_len) {
 608                         attendees = g_realloc(attendees, e_len+n_len+2);
 609                         *(attendees+e_len) = '\n';
 610                         strcpy(attendees+e_len+1, tmp);
 611                 } else {
 612                         attendees = g_realloc(attendees, e_len+n_len+1);
 613                         strcpy(attendees, tmp);
 614                 }
 615                 g_free(tmp);
 616                 g_free(answer);
 617                 g_free(type);
 618                 g_free(name);
 619                 g_free(ename);
 620                 g_free(eatt);
 621         }
 622
 623         if (attendees && *(attendees)) {
 624                 GTK_LABEL_SET_TEXT_TRIMMED(GTK_LABEL(vcalviewer->attendees), attendees);
 625         } else {
 626                 GTK_LABEL_SET_TEXT_TRIMMED(GTK_LABEL(vcalviewer->attendees), "-");
 627         }
 628         g_free(attendees);
 629         gtk_label_set_use_markup(GTK_LABEL(vcalviewer->attendees), TRUE);
 630
 631 /* buttons */
 632         if (!mine)
 633                 if (event->type != ICAL_VTODO_COMPONENT)
 634                         vcalviewer_answer_set_choices(vcalviewer, event, event->method);
 635                 else
 636                         vcalviewer_answer_set_choices(vcalviewer, event, ICAL_METHOD_PUBLISH);
 637         else {
 638                 vcalviewer_answer_set_choices(vcalviewer, event, ICAL_METHOD_REPLY);
 639                 gtk_widget_show(vcalviewer->reedit);
 640                 gtk_widget_show(vcalviewer->cancel);
 641         }
 642
 643 /* save if cancelled */
 644         if (save_evt)
 645                 vcal_manager_save_event(event, TRUE);
 646 }
 647
 648 gchar *vcalviewer_get_uid_from_mimeinfo(MimeInfo *mimeinfo)
 649 {
 650         gchar *compstr = NULL;
 651         gchar *res = NULL;
 652         VCalEvent *event = NULL;
 653
 654         compstr = procmime_get_part_as_string(mimeinfo);
 655
 656         event = vcal_get_event_from_ical(compstr, NULL);
 657         if (event)
 658                 res = g_strdup(event->uid);
 659
 660         vcal_manager_free_event(event);
 661
 662         debug_print("got uid: %s\n", res);
 663         return res;
 664
 665 }
 666
 667 static void vcalviewer_get_request_values(VCalViewer *vcalviewer, MimeInfo *mimeinfo, gboolean is_todo)
 668 {
 669         VCalEvent *saved_event = NULL;
 670         const gchar *saveme =  procmime_mimeinfo_get_parameter(mimeinfo, "vcalsave");
 671
 672         if (!vcalviewer->event)
 673                 return;
 674
 675         /* see if we have it registered and more recent */
 676         saved_event = vcal_manager_load_event(vcalviewer->event->uid);
 677         if (saved_event && saved_event->sequence >= vcalviewer->event->sequence) {
 678                 saved_event->method = vcalviewer->event->method;
 679                 vcalviewer_display_event(vcalviewer, saved_event);
 680                 vcal_manager_free_event(saved_event);
 681                 return;
 682         } else if (saved_event) {
 683                 vcal_manager_free_event(saved_event);
 684         }
 685
 686         /* load it and register it */
 687
 688         if (!saveme || strcmp(saveme,"no"))
 689                 vcal_manager_save_event(vcalviewer->event, FALSE);
 690
 691         vcalviewer_display_event(vcalviewer, vcalviewer->event);
 692 }
 693
 694 static void vcalviewer_get_reply_values(VCalViewer *vcalviewer, MimeInfo *mimeinfo)
 695 {
 696         VCalEvent *saved_event = NULL;
 697         gchar *attendee = NULL, *label = NULL;
 698         Answer *answer = NULL;
 699
 700         if (!vcalviewer->event)
 701                 return;
 702
 703         if (!vcalviewer->event->answers || g_slist_length(vcalviewer->event->answers) > 1) {
 704                 g_warning("strange, no answers or more than one");
 705         }
 706
 707         if (vcalviewer->event->answers) {
 708                 answer = (Answer *)vcalviewer->event->answers->data;
 709                 attendee = g_strdup(answer->attendee);
 710         }
 711
 712
 713         if (!answer) {
 714                 label = g_strjoin(" ",
 715                         _("You have received an answer to an unknown meeting proposal."),
 716                         _("Details follow:"), NULL);
 717                 GTK_LABEL_SET_TEXT_TRIMMED(GTK_LABEL(vcalviewer->type), label);
 718         } else {
 719                 label = g_strdup_printf(_("You have received an answer to a meeting proposal.\n"
 720                         "%s has %s the invitation whose details follow:"),
 721                         attendee, vcal_manager_answer_get_text(answer->answer));
 722                 GTK_LABEL_SET_TEXT_TRIMMED(GTK_LABEL(vcalviewer->type), label);
 723                 g_free(attendee);
 724         }
 725         g_free(label);
 726
 727         saved_event = vcal_manager_load_event(vcalviewer->event->uid);
 728         if (saved_event && answer) {
 729                 vcal_manager_update_answer(saved_event,
 730                         answer->attendee, answer->name, answer->answer, answer->cutype);
 731                 vcal_manager_save_event(saved_event, TRUE);
 732                 saved_event->method = vcalviewer->event->method;
 733                 vcalviewer_display_event(vcalviewer, saved_event);
 734                 vcal_manager_free_event(saved_event);
 735                 return;
 736         }
 737
 738         if (vcalviewer->event->organizer) {
 739                 if (vcalviewer->event->orgname) {
 740                         gchar *addr = g_strconcat(vcalviewer->event->orgname, " <",
 741                                         vcalviewer->event->organizer, ">", NULL);
 742                         GTK_LABEL_SET_TEXT_TRIMMED(GTK_LABEL(vcalviewer->who), addr);
 743                         g_free(addr);
 744                 } else {
 745                         GTK_LABEL_SET_TEXT_TRIMMED(GTK_LABEL(vcalviewer->who),
 746                                 vcalviewer->event->organizer);
 747                 }
 748         } else {
 749                 GTK_LABEL_SET_TEXT_TRIMMED(GTK_LABEL(vcalviewer->who), "-");
 750         }
 751
 752         GTK_LABEL_SET_TEXT_TRIMMED(GTK_LABEL(vcalviewer->location),
 753                 vcalviewer->event->location?vcalviewer->event->location:"-");
 754
 755         GTK_LABEL_SET_TEXT_TRIMMED(GTK_LABEL(vcalviewer->summary),
 756                 vcalviewer->event->summary?vcalviewer->event->summary:"-");
 757
 758         GTK_LABEL_SET_TEXT_TRIMMED(GTK_LABEL(vcalviewer->description),
 759                 vcalviewer->event->description?vcalviewer->event->description:"-");
 760
 761         g_free(vcalviewer->url);
 762         if (vcalviewer->event->url) {
 763                 vcalviewer->url = g_strdup(vcalviewer->event->url);
 764                 gtk_widget_show(vcalviewer->uribtn);
 765         } else {
 766                 vcalviewer->url = NULL;
 767                 gtk_widget_hide(vcalviewer->uribtn);
 768         }
 769
 770         GTK_LABEL_SET_TEXT_TRIMMED(GTK_LABEL(vcalviewer->start),
 771                 vcalviewer->event->start?vcalviewer->event->start:"-");
 772         GTK_LABEL_SET_TEXT_TRIMMED(GTK_LABEL(vcalviewer->end),
 773                 vcalviewer->event->end?vcalviewer->event->end:"-");
 774
 775         GTK_LABEL_SET_TEXT_TRIMMED(GTK_LABEL(vcalviewer->attendees), "-");
 776
 777         vcalviewer_answer_set_choices(vcalviewer, NULL, ICAL_METHOD_REPLY);
 778 }
 779
 780 static void vcalviewer_get_event(VCalViewer *vcalviewer, MimeInfo *mimeinfo)
 781 {
 782         gchar *tmpfile = get_tmpfile(vcalviewer);
 783         const gchar *charset = procmime_mimeinfo_get_parameter(mimeinfo, "charset");
 784
 785         if (!charset)
 786                 charset = CS_WINDOWS_1252;
 787
 788         if (!strcasecmp(charset, CS_ISO_8859_1))
 789                 charset = CS_WINDOWS_1252;
 790
 791         if (vcalviewer->event) {
 792                 vcal_manager_free_event(vcalviewer->event);
 793                 vcalviewer->event = NULL;
 794         }
 795
 796         if (!tmpfile) {
 797                 vcalviewer_reset(vcalviewer);
 798                 vcalviewer_show_error(vcalviewer, _("Error - could not get the calendar MIME part."));
 799                 return;
 800         }
 801
 802         vcalviewer->event = vcalviewer_get_component(tmpfile, charset);
 803         if (!vcalviewer->event) {
 804                 vcalviewer_reset(vcalviewer);
 805                 vcalviewer_show_error(vcalviewer, _("Error - no calendar part found."));
 806                 return;
 807         }
 808
 809         if (vcalviewer->event->type == ICAL_VTODO_COMPONENT) {
 810                 vcalviewer_get_request_values(vcalviewer, mimeinfo, TRUE);
 811         } else if (vcalviewer->event->method == ICAL_METHOD_REQUEST ||
 812                    vcalviewer->event->method == ICAL_METHOD_PUBLISH ||
 813                    vcalviewer->event->method == ICAL_METHOD_CANCEL) {
 814                 vcalviewer_get_request_values(vcalviewer, mimeinfo, FALSE);
 815         } else if (vcalviewer->event->method == ICAL_METHOD_REPLY) {
 816                 vcalviewer_get_reply_values(vcalviewer, mimeinfo);
 817         } else {
 818                 vcalviewer_reset(vcalviewer);
 819                 vcalviewer_show_error(vcalviewer, _("Error - Unknown calendar component type."));
 820         }
 821 }
 822
 823 static VCalViewer *s_vcalviewer = NULL;
 824
 825 static void vcal_viewer_show_mimepart(MimeViewer *_mimeviewer, const gchar *file, MimeInfo *mimeinfo)
 826 {
 827         VCalViewer *vcalviewer = (VCalViewer *) _mimeviewer;
 828         GtkAllocation allocation;
 829
 830         START_TIMING("");
 831
 832         s_vcalviewer = vcalviewer;
 833
 834         if (mimeinfo == NULL) {
 835                 vcal_viewer_clear_viewer(_mimeviewer);
 836                 END_TIMING();
 837                 return;
 838         }
 839         debug_print("vcal_viewer_show_mimepart : %s\n", file);
 840
 841         vcal_viewer_clear_viewer(_mimeviewer);
 842         gtk_widget_show_all(vcalviewer->scrolledwin);
 843         g_free(vcalviewer->file);
 844         vcalviewer->file = g_strdup(file);
 845         vcalviewer->mimeinfo = mimeinfo;
 846         vcalviewer_hide_error(vcalviewer);
 847         vcalviewer_get_event(vcalviewer, mimeinfo);
 848         GTK_EVENTS_FLUSH();
 849         gtk_widget_get_allocation(vcalviewer->scrolledwin, &allocation);
 850         gtk_widget_set_size_request(vcalviewer->description,
 851                 allocation.width - 200, -1);
 852         gtk_label_set_line_wrap(GTK_LABEL(vcalviewer->location), TRUE);
 853         gtk_label_set_line_wrap(GTK_LABEL(vcalviewer->summary), TRUE);
 854         gtk_label_set_line_wrap(GTK_LABEL(vcalviewer->description), TRUE);
 855         gtk_label_set_line_wrap(GTK_LABEL(vcalviewer->attendees), FALSE);
 856
 857         if (prefs_common_get_prefs()->textfont) {
 858                 PangoFontDescription *font_desc;
 859
 860                 font_desc = pango_font_description_from_string
 861                                                 (prefs_common_get_prefs()->textfont);
 862                 if (font_desc) {
 863                         gtk_widget_modify_font(
 864                                 vcalviewer->description, font_desc);
 865                         pango_font_description_free(font_desc);
 866                 }
 867         }
 868         END_TIMING();
 869 }
 870
 871 void vcalviewer_reload(FolderItem *item)
 872 {
 873         if (s_vcalviewer) {
 874                 MainWindow *mainwin = mainwindow_get_mainwindow();
 875                 Folder *folder = folder_find_from_name (PLUGIN_NAME, vcal_folder_get_class());
 876
 877                 folder_item_scan(item);
 878                 if (mainwin && mainwin->summaryview->folder_item) {
 879                         FolderItem *cur = mainwin->summaryview->folder_item;
 880                         if (cur->folder == folder)
 881                                 folder_item_scan(cur);
 882                 }
 883                 if (mainwin && mainwin->summaryview->folder_item == item) {
 884                         debug_print("reload: %p, %p\n", (MimeViewer *)s_vcalviewer, s_vcalviewer->mimeinfo);
 885                         summary_redisplay_msg(mainwin->summaryview);
 886                 }
 887         }
 888 }
 889
 890 static void vcal_viewer_destroy_viewer(MimeViewer *_mimeviewer)
 891 {
 892         VCalViewer *vcalviewer = (VCalViewer *) _mimeviewer;
 893
 894         debug_print("vcal_viewer_destroy_viewer\n");
 895
 896         if (s_vcalviewer == vcalviewer)
 897                 s_vcalviewer = NULL;
 898         vcal_viewer_clear_viewer(_mimeviewer);
 899         g_free(vcalviewer);
 900 }
 901
 902 static gboolean vcalviewer_reedit_cb(GtkButton *widget, gpointer data)
 903 {
 904         VCalViewer *vcalviewer = (VCalViewer *)data;
 905         gchar * uid = vcalviewer_get_uid_from_mimeinfo(vcalviewer->mimeinfo);
 906         VCalEvent *event = NULL;
 907
 908         s_vcalviewer = vcalviewer;
 909         /* see if we have it registered and more recent */
 910         event = vcal_manager_load_event(uid);
 911         vcal_meeting_create(event);
 912         vcal_manager_free_event(event);
 913         return TRUE;
 914 }
 915
 916 static gboolean vcalviewer_uribtn_cb(GtkButton *widget, gpointer data)
 917 {
 918         VCalViewer *vcalviewer = (VCalViewer *)data;
 919
 920         if (vcalviewer->url)
 921                 open_uri(vcalviewer->url, prefs_common_get_uri_cmd());
 922
 923         return TRUE;
 924 }
 925
 926 void vcalendar_refresh_folder_contents(FolderItem *item)
 927 {
 928         Folder *folder = folder_find_from_name (PLUGIN_NAME, vcal_folder_get_class());
 929         if (folder && item->folder == folder) {
 930                 MainWindow *mainwin = mainwindow_get_mainwindow();
 931                 folder_item_scan(item);
 932                 if (mainwin->summaryview->folder_item == item) {
 933                         summary_show(mainwin->summaryview, item);
 934                 }
 935         }
 936 }
 937
 938 static void send_cancel_notify_toggled_cb(GtkToggleButton *button, gboolean *data)
 939 {
 940         *data = gtk_toggle_button_get_active(button);
 941 }
 942
 943 void vcalendar_cancel_meeting(FolderItem *item, const gchar *uid)
 944 {
 945         VCalEvent *event = NULL;
 946         VCalMeeting *meet = NULL;
 947         gchar *file = NULL;
 948         gint val = 0;
 949         Folder *folder = folder_find_from_name (PLUGIN_NAME, vcal_folder_get_class());
 950         gboolean redisp = FALSE;
 951         GtkWidget *send_notify_chkbtn = gtk_check_button_new_with_label(_("Send a notification to the attendees"));
 952         gboolean send_notify = TRUE;
 953
 954         gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(send_notify_chkbtn), TRUE);
 955         gtk_widget_show(send_notify_chkbtn);
 956         g_signal_connect(G_OBJECT(send_notify_chkbtn), "toggled",
 957                          G_CALLBACK(send_cancel_notify_toggled_cb),
 958                          &send_notify);
 959
 960         val = alertpanel_full(_("Cancel meeting"),
 961                                    _("Are you sure you want to cancel this meeting?"),
 962                                    GTK_STOCK_NO, GTK_STOCK_YES, NULL, ALERTFOCUS_FIRST, FALSE,
 963                                    send_notify_chkbtn, ALERT_WARNING);
 964
 965         if (val != G_ALERTALTERNATE)
 966                 return;
 967
 968         event = vcal_manager_load_event(uid);
 969         if (!event)
 970                 return;
 971         event->method = ICAL_METHOD_CANCEL;
 972
 973         if (folder) {
 974                 MainWindow *mainwin = mainwindow_get_mainwindow();
 975                 if (mainwin->summaryview->folder_item == item) {
 976                         redisp = TRUE;
 977                         summary_show(mainwin->summaryview, NULL);
 978                 }
 979         }
 980
 981         if (send_notify) {
 982                 meet = vcal_meeting_create_hidden(event);
 983                 if (!vcal_meeting_send(meet)) {
 984                         event->method = ICAL_METHOD_REQUEST;
 985                         vcal_manager_save_event(event, TRUE);
 986                         vcal_manager_free_event(event);
 987                         if (folder)
 988                                 folder_item_scan(item);
 989
 990                         if (folder && redisp) {
 991                                 MainWindow *mainwin = mainwindow_get_mainwindow();
 992                                 summary_show(mainwin->summaryview, item);
 993                         }
 994                         return;
 995                 }
 996         }
 997
 998         vcal_manager_save_event(event, TRUE);
 999
1000         file = vcal_manager_get_event_file(event->uid);
1001         g_unlink(file);
1002         vcal_manager_free_event(event);
1003         g_free(file);
1004         if (folder)
1005                 folder_item_scan(item);
1006         if (folder && redisp) {
1007                 MainWindow *mainwin = mainwindow_get_mainwindow();
1008                 summary_show(mainwin->summaryview, item);
1009         }
1010
1011         return;
1012 }
1013
1014 static gboolean vcalviewer_cancel_cb(GtkButton *widget, gpointer data)
1015 {
1016         VCalViewer *vcalviewer = (VCalViewer *)data;
1017         FolderItem *item = vcalendar_get_current_item();
1018         gchar * uid = vcalviewer_get_uid_from_mimeinfo(vcalviewer->mimeinfo);
1019         vcalendar_cancel_meeting(item, uid);
1020         return TRUE;
1021 }
1022
1023 static gboolean vcalviewer_action_cb(GtkButton *widget, gpointer data)
1024 {
1025         VCalViewer *vcalviewer = (VCalViewer *)data;
1026         gint index = gtk_combo_box_get_active(GTK_COMBO_BOX(vcalviewer->answer));
1027         icalparameter_partstat reply[3] = {ICAL_PARTSTAT_ACCEPTED, ICAL_PARTSTAT_TENTATIVE, ICAL_PARTSTAT_DECLINED};
1028         PrefsAccount *account = NULL;
1029         VCalEvent *saved_event = NULL, *event = NULL;
1030         debug_print("index chosen %d\n", index);
1031
1032         if (index < 0 || index > 2) {
1033                 return TRUE;
1034         }
1035
1036         s_vcalviewer = vcalviewer;
1037
1038         if (!vcalviewer->event) {
1039                 g_warning("can't get event");
1040                 return TRUE;
1041         }
1042
1043 /* see if we have it registered and more recent */
1044         event = vcalviewer->event;
1045         saved_event = vcal_manager_load_event(vcalviewer->event->uid);
1046         if (saved_event && saved_event->sequence >= vcalviewer->event->sequence) {
1047                 saved_event->method = vcalviewer->event->method;
1048                 event = saved_event;
1049         } else if (saved_event) {
1050                 vcal_manager_free_event(saved_event);
1051                 saved_event = NULL;
1052         }
1053         account = vcal_manager_get_account_from_event(event);
1054
1055         if (!account) {
1056                 AlertValue val = alertpanel_full(_("No account found"),
1057                                         _("You have no account matching any attendee.\n"
1058                                             "Do you want to reply anyway?"),
1059                                         GTK_STOCK_CANCEL, _("Reply anyway"), NULL,
1060                                                 ALERTFOCUS_SECOND, FALSE, NULL, ALERT_QUESTION);
1061                 if (val == G_ALERTALTERNATE) {
1062                         account = account_get_default();
1063                         vcal_manager_update_answer(event, account->address,
1064                                         account->name,
1065                                         ICAL_PARTSTAT_NEEDSACTION,
1066                                         ICAL_CUTYPE_INDIVIDUAL);
1067                 } else {
1068                         if (saved_event)
1069                                 vcal_manager_free_event(saved_event);
1070                         return TRUE;
1071                 }
1072         }
1073
1074         vcal_manager_update_answer(event, account->address, account->name, reply[index], 0);
1075
1076         if (event->organizer && *(event->organizer) &&
1077             !vcal_manager_reply(account, event)) {
1078                 g_warning("couldn't send reply");
1079         } else {
1080                 debug_print("no organizer, not sending answer\n");
1081         }
1082
1083         vcal_manager_save_event(event, TRUE);
1084
1085         vcalviewer_display_event(vcalviewer, event);
1086         if (saved_event)
1087                 vcal_manager_free_event(saved_event);
1088         return TRUE;
1089 };
1090
1091 #define TABLE_ADD_LINE(label_text, widget) {                            \
1092         gchar *tmpstr = g_strdup_printf("<span weight=\"bold\">%s</span>",\
1093                                 label_text);                            \
1094         GtkWidget *label = gtk_label_new(tmpstr);                       \
1095         g_free(tmpstr);                                                 \
1096         gtk_label_set_use_markup (GTK_LABEL (label), TRUE);             \
1097         gtk_misc_set_alignment (GTK_MISC(label), 1, 0);                 \
1098         gtk_table_attach (GTK_TABLE (vcalviewer->table),                \
1099                           label, 0, 1, i, i+1,                          \
1100                           GTK_FILL, GTK_FILL, 6, 6);                    \
1101         gtk_table_attach (GTK_TABLE (vcalviewer->table),                \
1102                           widget, 1, 2, i, i+1,                         \
1103                           GTK_FILL, GTK_FILL, 6, 6);                    \
1104         if (GTK_IS_LABEL(widget)) {                                     \
1105                 gtk_label_set_use_markup(GTK_LABEL (widget), TRUE);     \
1106                 gtk_misc_set_alignment (GTK_MISC(widget),0, 0);         \
1107                 gtk_label_set_line_wrap(GTK_LABEL(widget), TRUE);       \
1108         }                                                               \
1109         i++;                                                            \
1110 }
1111
1112 static gchar *vcal_viewer_get_selection(MimeViewer *_viewer)
1113 {
1114         VCalViewer *viewer = (VCalViewer *)_viewer;
1115         if (viewer->summary == NULL)
1116                 return NULL;
1117         if (gtk_label_get_text(GTK_LABEL(viewer->description))
1118         &&  *(gtk_label_get_text(GTK_LABEL(viewer->description))) > 2) {
1119                 gint start, end;
1120                 if (gtk_label_get_selection_bounds(GTK_LABEL(viewer->description),
1121                                                    &start, &end)) {
1122                         gchar *tmp = g_strdup(gtk_label_get_text(
1123                                                 GTK_LABEL(viewer->description))+start);
1124                         tmp[end-start] = '\0';
1125                         return tmp;
1126                 } else {
1127                         return g_strdup(gtk_label_get_text(GTK_LABEL(viewer->description)));
1128                 }
1129         }
1130         else if (gtk_label_get_text(GTK_LABEL(viewer->summary))
1131         &&  *(gtk_label_get_text(GTK_LABEL(viewer->summary))) > 2)
1132                 return g_strdup(gtk_label_get_text(GTK_LABEL(viewer->summary)));
1133         else
1134                 return NULL;
1135 }
1136
1137
1138 static gboolean vcal_viewer_scroll_page(MimeViewer *_viewer, gboolean up)
1139 {
1140         VCalViewer *viewer = (VCalViewer *)_viewer;
1141         GtkAdjustment *vadj = gtk_scrolled_window_get_vadjustment(
1142                 GTK_SCROLLED_WINDOW(viewer->scrolledwin));
1143
1144         return gtkutils_scroll_page(viewer->table, vadj, up);
1145 }
1146
1147 static void vcal_viewer_scroll_one_line(MimeViewer *_viewer, gboolean up)
1148 {
1149         VCalViewer *viewer = (VCalViewer *)_viewer;
1150         GtkAdjustment *vadj = gtk_scrolled_window_get_vadjustment(
1151                 GTK_SCROLLED_WINDOW(viewer->scrolledwin));
1152
1153         gtkutils_scroll_one_line(viewer->table, vadj, up);
1154 }
1155
1156 MimeViewer *vcal_viewer_create(void)
1157 {
1158         VCalViewer *vcalviewer;
1159         int i = 0;
1160         GtkWidget *hbox = NULL, *vbox = NULL;
1161         GtkWidget *warning_img;
1162         GtkWidget *warning_label;
1163
1164         debug_print("Creating vcal view...\n");
1165         vcalviewer = g_new0(VCalViewer, 1);
1166         vcalviewer->mimeviewer.factory = &vcal_viewer_factory;
1167
1168         vcalviewer->mimeviewer.get_widget = vcal_viewer_get_widget;
1169         vcalviewer->mimeviewer.show_mimepart = vcal_viewer_show_mimepart;
1170         vcalviewer->mimeviewer.clear_viewer = vcal_viewer_clear_viewer;
1171         vcalviewer->mimeviewer.destroy_viewer = vcal_viewer_destroy_viewer;
1172         vcalviewer->mimeviewer.get_selection = vcal_viewer_get_selection;
1173         vcalviewer->mimeviewer.scroll_page = vcal_viewer_scroll_page;
1174         vcalviewer->mimeviewer.scroll_one_line = vcal_viewer_scroll_one_line;
1175
1176         vcalviewer->table = gtk_table_new(8, 2, FALSE);
1177         vcalviewer->type = gtk_label_new("meeting");
1178         vcalviewer->who = gtk_label_new("who");
1179         vcalviewer->start = gtk_label_new("start");
1180         vcalviewer->end = gtk_label_new("end");
1181         vcalviewer->location = gtk_label_new("location");
1182         vcalviewer->summary = gtk_label_new("summary");
1183         vcalviewer->description = gtk_label_new("description");
1184         vcalviewer->attendees = gtk_label_new("attendees");
1185
1186         vcalviewer->answer = gtk_combo_box_text_new();
1187         vcalviewer->url = NULL;
1188         vcalviewer->button = gtk_button_new_with_label(_("Answer"));
1189         vcalviewer->reedit = gtk_button_new_with_label(_("Edit meeting..."));
1190         vcalviewer->cancel = gtk_button_new_with_label(_("Cancel meeting..."));
1191         vcalviewer->uribtn = gtk_button_new_with_label(_("Launch website"));
1192         vcalviewer->unavail_box = gtk_hbox_new(FALSE, 6);
1193         warning_img = gtk_image_new_from_stock
1194                         (GTK_STOCK_DIALOG_WARNING, GTK_ICON_SIZE_SMALL_TOOLBAR);
1195         warning_label = gtk_label_new(_("You are already busy at this time."));
1196
1197         gtk_box_pack_start(GTK_BOX(vcalviewer->unavail_box), warning_img, FALSE, FALSE, 0);
1198         gtk_box_pack_start(GTK_BOX(vcalviewer->unavail_box), warning_label, FALSE, FALSE, 0);
1199
1200         hbox = gtk_hbox_new(FALSE, 6);
1201         gtk_box_pack_start(GTK_BOX(hbox), vcalviewer->answer, FALSE, FALSE, 0);
1202         gtk_box_pack_start(GTK_BOX(hbox), vcalviewer->button, FALSE, FALSE, 0);
1203         gtk_box_pack_start(GTK_BOX(hbox), vcalviewer->reedit, FALSE, FALSE, 0);
1204         gtk_box_pack_start(GTK_BOX(hbox), vcalviewer->cancel, FALSE, FALSE, 0);
1205         gtk_box_pack_start(GTK_BOX(hbox), vcalviewer->uribtn, FALSE, FALSE, 0);
1206
1207         vbox = gtk_vbox_new(FALSE, 6);
1208         gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, FALSE, 0);
1209         gtk_box_pack_start(GTK_BOX(vbox), vcalviewer->unavail_box, FALSE, FALSE, 0);
1210
1211         vcalviewer_answer_set_choices(vcalviewer, NULL, ICAL_METHOD_REQUEST);
1212
1213         gtk_label_set_selectable(GTK_LABEL(vcalviewer->type), TRUE);
1214         gtk_label_set_selectable(GTK_LABEL(vcalviewer->who), TRUE);
1215         gtk_label_set_selectable(GTK_LABEL(vcalviewer->start), TRUE);
1216         gtk_label_set_selectable(GTK_LABEL(vcalviewer->end), TRUE);
1217         gtk_label_set_selectable(GTK_LABEL(vcalviewer->location), TRUE);
1218         gtk_label_set_selectable(GTK_LABEL(vcalviewer->summary), TRUE);
1219         gtk_label_set_selectable(GTK_LABEL(vcalviewer->description), TRUE);
1220         gtk_label_set_selectable(GTK_LABEL(vcalviewer->attendees), TRUE);
1221
1222         g_signal_connect(G_OBJECT(vcalviewer->button), "clicked",
1223                          G_CALLBACK(vcalviewer_action_cb), vcalviewer);
1224
1225         g_signal_connect(G_OBJECT(vcalviewer->reedit), "clicked",
1226                          G_CALLBACK(vcalviewer_reedit_cb), vcalviewer);
1227
1228         g_signal_connect(G_OBJECT(vcalviewer->cancel), "clicked",
1229                          G_CALLBACK(vcalviewer_cancel_cb), vcalviewer);
1230
1231         g_signal_connect(G_OBJECT(vcalviewer->uribtn), "clicked",
1232                          G_CALLBACK(vcalviewer_uribtn_cb), vcalviewer);
1233
1234         TABLE_ADD_LINE(_("Event:"), vcalviewer->type);
1235         TABLE_ADD_LINE(_("Organizer:"), vcalviewer->who);
1236         TABLE_ADD_LINE(_("Location:"), vcalviewer->location);
1237         TABLE_ADD_LINE(_("Summary:"), vcalviewer->summary);
1238         TABLE_ADD_LINE(_("Starting:"), vcalviewer->start);
1239         TABLE_ADD_LINE(_("Ending:"), vcalviewer->end);
1240         TABLE_ADD_LINE(_("Description:"), vcalviewer->description);
1241         TABLE_ADD_LINE(_("Attendees:"), vcalviewer->attendees);
1242         gtk_label_set_line_wrap(GTK_LABEL(vcalviewer->attendees), FALSE);
1243         TABLE_ADD_LINE(_("Action:"), vbox);
1244
1245         vcalviewer->scrolledwin = gtk_scrolled_window_new(NULL, NULL);
1246         gtk_scrolled_window_add_with_viewport(
1247                 GTK_SCROLLED_WINDOW(vcalviewer->scrolledwin),
1248                 vcalviewer->table);
1249         gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(vcalviewer->scrolledwin),
1250                                        GTK_POLICY_NEVER,
1251                                        GTK_POLICY_AUTOMATIC);
1252
1253         gtk_widget_show_all(vcalviewer->scrolledwin);
1254         return (MimeViewer *) vcalviewer;
1255 }
1256
1257 static gchar *content_types[] =
1258         {"text/calendar", NULL};
1259
1260 MimeViewerFactory vcal_viewer_factory =
1261 {
1262         content_types,
1263         0,
1264         vcal_viewer_create,
1265 };
1266
1267 static gint alert_timeout_tag = 0;
1268 static gint scan_timeout_tag = 0;
1269
1270 static gboolean vcal_webcal_check(gpointer data)
1271 {
1272         Folder *root = folder_find_from_name (PLUGIN_NAME, vcal_folder_get_class());
1273
1274         if (prefs_common_get_prefs()->work_offline)
1275                 return TRUE;
1276
1277         manual_update = FALSE;
1278         folderview_check_new(root);
1279         manual_update = TRUE;
1280         return TRUE;
1281 }
1282
1283 static guint context_menu_id = 0;
1284 static guint main_menu_id = 0;
1285
1286 void vcalendar_init(void)
1287 {
1288         MainWindow *mainwin = mainwindow_get_mainwindow();
1289         Folder *folder = NULL;
1290         gchar *directory = g_strconcat(get_rc_dir(), G_DIR_SEPARATOR_S,
1291                                 "vcalendar", NULL);
1292         START_TIMING("");
1293         if (!is_dir_exist(directory) && make_dir (directory) != 0) {
1294                 g_free(directory);
1295                 return;
1296         }
1297
1298         g_free(directory);
1299
1300         vcal_prefs_init();
1301
1302         mimeview_register_viewer_factory(&vcal_viewer_factory);
1303         folder_register_class(vcal_folder_get_class());
1304
1305         folder = folder_find_from_name (PLUGIN_NAME, vcal_folder_get_class());
1306         if (!folder) {
1307                 START_TIMING("creating folder");
1308                 folder = folder_new(vcal_folder_get_class(), PLUGIN_NAME, NULL);
1309                 folder->klass->create_tree(folder);
1310                 folder_add(folder);
1311                 folder_scan_tree(folder, TRUE);
1312                 END_TIMING();
1313         }
1314
1315         if (!folder->inbox) {
1316                 folder->klass->create_tree(folder);
1317                 folder_scan_tree(folder, TRUE);
1318         }
1319         if (folder->klass->scan_required(folder, folder->inbox)) {
1320                 START_TIMING("scanning folder");
1321                 folder_item_scan(folder->inbox);
1322                 END_TIMING();
1323         }
1324
1325         vcal_folder_gtk_init();
1326
1327         alert_timeout_tag = g_timeout_add(60*1000,
1328                                 (GSourceFunc)vcal_meeting_alert_check,
1329                                 (gpointer)NULL);
1330         scan_timeout_tag = g_timeout_add(3600*1000,
1331                                 (GSourceFunc)vcal_webcal_check,
1332                                 (gpointer)NULL);
1333         if (prefs_common_get_prefs()->enable_color) {
1334                 gtkut_convert_int_to_gdk_color(prefs_common_get_prefs()->color[COL_URI],
1335                                        &uri_color);
1336         }
1337
1338         gtk_action_group_add_actions(mainwin->action_group, vcalendar_main_menu,
1339                         1, (gpointer)mainwin);
1340         MENUITEM_ADDUI_ID_MANAGER(mainwin->ui_manager, "/Menu/Message", "CreateMeeting",
1341                           "Message/CreateMeeting", GTK_UI_MANAGER_MENUITEM,
1342                           main_menu_id)
1343         MENUITEM_ADDUI_ID_MANAGER(mainwin->ui_manager, "/Menus/SummaryViewPopup", "CreateMeeting",
1344                           "Message/CreateMeeting", GTK_UI_MANAGER_MENUITEM,
1345                           context_menu_id)
1346         END_TIMING();
1347 }
1348
1349 void vcalendar_done(void)
1350 {
1351         MainWindow *mainwin = mainwindow_get_mainwindow();
1352         FolderView *folderview = NULL;
1353         FolderItem *fitem = NULL;
1354
1355         icalmemory_free_ring();
1356
1357         vcal_folder_free_data();
1358
1359         if (mainwin == NULL)
1360                 return;
1361
1362         folderview = mainwin->folderview;
1363         fitem = folderview->summaryview->folder_item;
1364
1365         if (fitem &&
1366             fitem->folder->klass == vcal_folder_get_class()) {
1367                 folderview_unselect(folderview);
1368                 summary_clear_all(folderview->summaryview);
1369                 if (fitem->folder->klass->item_closed)
1370                         fitem->folder->klass->item_closed(fitem);
1371         }
1372
1373         mimeview_unregister_viewer_factory(&vcal_viewer_factory);
1374         folder_unregister_class(vcal_folder_get_class());
1375         vcal_folder_gtk_done();
1376         vcal_prefs_done();
1377         g_source_remove(alert_timeout_tag);
1378         alert_timeout_tag = 0;
1379         g_source_remove(scan_timeout_tag);
1380         scan_timeout_tag = 0;
1381
1382         MENUITEM_REMUI_MANAGER(mainwin->ui_manager,mainwin->action_group, "Message/CreateMeeting", main_menu_id);
1383         main_menu_id = 0;
1384         MENUITEM_REMUI_MANAGER(mainwin->ui_manager,mainwin->action_group, "Message/CreateMeeting", context_menu_id);
1385         context_menu_id = 0;
1386 }