webcit/calendar_view.c

   1 /*
   2  * Handles the HTML display of calendar items.
   3  *
   4  * Copyright (c) 1996-2010 by the citadel.org team
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 3 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #include "webcit.h"
  22 #include "webserver.h"
  23 #include "calendar.h"
  24
  25 /* These define how high the hour rows are in the day view */
  26 #define TIMELINE        30
  27 #define EXTRATIMELINE   (TIMELINE / 2)
  28
  29 void embeddable_mini_calendar(int year, int month)
  30 {
  31         struct tm starting_tm;
  32         struct tm tm;
  33         time_t thetime;
  34         int i;
  35         time_t previous_month;
  36         time_t next_month;
  37         time_t colheader_time;
  38         struct tm colheader_tm;
  39         char colheader_label[32];
  40         long weekstart = 0;
  41         char url[256];
  42         char div_id[256];
  43
  44         snprintf(div_id, sizeof div_id, "mini_calendar_%d", rand() );
  45
  46         /* Determine what day to start.  If an impossible value is found, start on Sunday.
  47         */
  48         get_pref_long("weekstart", &weekstart, 17);
  49         if (weekstart > 6) weekstart = 0;
  50
  51         /*
  52         * Now back up to the 1st of the month...
  53         */
  54         memset(&starting_tm, 0, sizeof(struct tm));
  55
  56         starting_tm.tm_year = year - 1900;
  57         starting_tm.tm_mon = month - 1;
  58         starting_tm.tm_mday = 1;
  59         thetime = mktime(&starting_tm);
  60
  61         memcpy(&tm, &starting_tm, sizeof(struct tm));
  62         while (tm.tm_mday != 1) {
  63                 thetime = thetime - (time_t)86400;      /* go back 24 hours */
  64                 localtime_r(&thetime, &tm);
  65         }
  66
  67         /* Determine previous and next months ... for links */
  68         previous_month = thetime - (time_t)864000L;     /* back 10 days */
  69         next_month = thetime + (time_t)(31L * 86400L);  /* ahead 31 days */
  70
  71         /* Now back up until we're on the user's preferred start day */
  72         localtime_r(&thetime, &tm);
  73         while (tm.tm_wday != weekstart) {
  74                 thetime = thetime - (time_t)86400;      /* go back 24 hours */
  75                 localtime_r(&thetime, &tm);
  76         }
  77
  78         wc_printf("<div class=\"mini_calendar\" id=\"%s\">\n", div_id);
  79
  80         /* Previous month link */
  81         localtime_r(&previous_month, &tm);
  82         wc_printf("<a href=\"javascript:minical_change_month(%d,%d);\">&laquo;</a>",
  83                 (int)(tm.tm_year)+1900, tm.tm_mon + 1);
  84
  85         wc_strftime(colheader_label, sizeof colheader_label, "%B", &starting_tm);
  86         wc_printf("&nbsp;&nbsp;"
  87                 "<span class=\"mini_calendar_month_label\">"
  88                 "%s %d"
  89                 "</span>"
  90                 "&nbsp;&nbsp;", colheader_label, year);
  91
  92         /* Next month link */
  93         localtime_r(&next_month, &tm);
  94         wc_printf("<a href=\"javascript:minical_change_month(%d,%d);\">&raquo;</a>",
  95                 (int)(tm.tm_year)+1900, tm.tm_mon + 1);
  96
  97         wc_printf("<table border=\"0\" cellpadding=\"1\" cellspacing=\"1\" class=\"mini_calendar_days\">"
  98                 "<tr>");
  99         colheader_time = thetime;
 100         for (i=0; i<7; ++i) {
 101                 colheader_time = thetime + (i * 86400) ;
 102                 localtime_r(&colheader_time, &colheader_tm);
 103                 wc_strftime(colheader_label, sizeof colheader_label, "%A", &colheader_tm);
 104                 wc_printf("<th>%c</th>", colheader_label[0]);
 105
 106         }
 107         wc_printf("</tr>\n");
 108
 109
 110         /* Now do 35 or 42 days */
 111         for (i = 0; i < 42; ++i) {
 112                 localtime_r(&thetime, &tm);
 113
 114                 if (i < 35) {
 115
 116                         /* Before displaying Sunday, start a new row */
 117                         if ((i % 7) == 0) {
 118                                 wc_printf("<tr>");
 119                         }
 120
 121                         if (tm.tm_mon == month-1) {
 122                                 snprintf(url, sizeof url, "readfwd?calview=day?year=%d?month=%d?day=%d",
 123                                         tm.tm_year+1900, tm.tm_mon+1, tm.tm_mday);
 124                                 wc_printf("<td><a href=\"%s\">%d</a></td>", url, tm.tm_mday);
 125                         }
 126                         else {
 127                                 wc_printf("<td> </td>");
 128                         }
 129
 130                         /* After displaying one week, end the row */
 131                         if ((i % 7) == 6) {
 132                                 wc_printf("</tr>\n");
 133                         }
 134
 135                 }
 136
 137                 thetime += (time_t)86400;               /* ahead 24 hours */
 138         }
 139
 140         wc_printf("</table>"                    /* end of inner table */
 141                 "</div>\n");
 142
 143         StrBufAppendPrintf(WC->trailing_javascript,
 144                 "       function minical_change_month(year, month) {                                    \n"
 145                 "               p = 'year=' + year + '&month=' + month                                  \n"
 146                 "                       + '&r=' + CtdlRandomString();                                   \n"
 147                 "               new Ajax.Updater('%s', 'mini_calendar',                                 \n"
 148                 "                       { method: 'get', parameters: p, evalScripts: true } );          \n"
 149                 "       }                                                                               \n"
 150                 "",
 151                 div_id
 152         );
 153
 154 }
 155
 156 /*
 157  * ajax embedder for the above mini calendar
 158  */
 159 void ajax_mini_calendar(void)
 160 {
 161         embeddable_mini_calendar( ibstr("year"), ibstr("month"));
 162 }
 163
 164
 165 /*
 166  * Display one day of a whole month view of a calendar
 167  */
 168 void calendar_month_view_display_events(int year, int month, int day)
 169 {
 170         long hklen;
 171         const char *HashKey;
 172         void *vCal;
 173         HashPos *Pos;
 174         disp_cal *Cal;
 175         icalproperty *p = NULL;
 176         icalproperty *q = NULL;
 177         struct icaltimetype t;
 178         struct icaltimetype end_t;
 179         struct icaltimetype today_start_t;
 180         struct icaltimetype today_end_t;
 181         struct icaltimetype today_t;
 182         struct tm starting_tm;
 183         struct tm ending_tm;
 184         int all_day_event = 0;
 185         int show_event = 0;
 186         char buf[256];
 187         wcsession *WCC = WC;
 188         time_t tt;
 189
 190         if (GetCount(WCC->disp_cal_items) == 0) {
 191                 wc_printf("<br /><br /><br />\n");
 192                 return;
 193         }
 194
 195         /*
 196          * Create an imaginary event which spans the 24 hours of today.  Any events which
 197          * overlap with this one take place at least partially in this day.  We have to
 198          * convert it from a struct tm in order to make it UTC.
 199          */
 200         memset(&starting_tm, 0, sizeof(struct tm));
 201         starting_tm.tm_year = year - 1900;
 202         starting_tm.tm_mon = month - 1;
 203         starting_tm.tm_mday = day;
 204         starting_tm.tm_hour = 0;
 205         starting_tm.tm_min = 0;
 206         today_start_t = icaltime_from_timet_with_zone(mktime(&starting_tm), 0, icaltimezone_get_utc_timezone());
 207         today_start_t.is_utc = 1;
 208
 209         memset(&ending_tm, 0, sizeof(struct tm));
 210         ending_tm.tm_year = year - 1900;
 211         ending_tm.tm_mon = month - 1;
 212         ending_tm.tm_mday = day;
 213         ending_tm.tm_hour = 23;
 214         ending_tm.tm_min = 59;
 215         today_end_t = icaltime_from_timet_with_zone(mktime(&ending_tm), 0, icaltimezone_get_utc_timezone());
 216         today_end_t.is_utc = 1;
 217
 218         /*
 219          * Create another one without caring about the timezone for all day events.
 220          */
 221         today_t = icaltime_null_date();
 222         today_t.year = year;
 223         today_t.month = month;
 224         today_t.day = day;
 225
 226         /*
 227          * Now loop through our list of events to see which ones occur today.
 228          */
 229         Pos = GetNewHashPos(WCC->disp_cal_items, 0);
 230         while (GetNextHashPos(WCC->disp_cal_items, Pos, &hklen, &HashKey, &vCal)) {
 231                 Cal = (disp_cal*)vCal;
 232                 all_day_event = 0;
 233                 q = icalcomponent_get_first_property(Cal->cal, ICAL_DTSTART_PROPERTY);
 234                 if (q != NULL) {
 235                         t = icalproperty_get_dtstart(q);
 236                 }
 237                 else {
 238                         memset(&t, 0, sizeof t);
 239                 }
 240                 q = icalcomponent_get_first_property(Cal->cal, ICAL_DTEND_PROPERTY);
 241                 if (q != NULL) {
 242                         end_t = icalproperty_get_dtend(q);
 243                 }
 244                 else {
 245                         memset(&end_t, 0, sizeof end_t);
 246                 }
 247                 if (t.is_date) all_day_event = 1;
 248
 249                 if (all_day_event)
 250                 {
 251                         show_event = ical_ctdl_is_overlap(t, end_t, today_t, icaltime_null_time());
 252                 }
 253                 else
 254                 {
 255                         show_event = ical_ctdl_is_overlap(t, end_t, today_start_t, today_end_t);
 256                 }
 257
 258                 /*
 259                  * If we determined that this event occurs today, then display it.
 260                  */
 261                 if (show_event) {
 262                         p = icalcomponent_get_first_property(Cal->cal, ICAL_SUMMARY_PROPERTY);
 263                         if (p == NULL) {
 264                                 p = icalproperty_new_summary(_("Untitled Event"));
 265                                 icalcomponent_add_property(Cal->cal, p);
 266                         }
 267                         if (p != NULL) {
 268
 269                                 if (all_day_event) {
 270                                         wc_printf("<table border=\"0\" cellpadding=\"2\"><TR>"
 271                                                 "<td bgcolor=\"#CCCCDD\">"
 272                                                 );
 273                                 }
 274
 275
 276                                 wc_printf("<font size=\"-1\">"
 277                                         "<a class=\"event%s\" href=\"display_edit_event?"
 278                                         "msgnum=%ld?calview=month?year=%d?month=%d?day=%d\">"
 279                                         ,
 280                                         (Cal->unread)?"_unread":"_read",
 281                                         Cal->cal_msgnum,
 282                                         year, month, day
 283                                 );
 284
 285                                 escputs((char *) icalproperty_get_comment(p));
 286
 287                                 wc_printf("<span class=\"tooltip\"><span class=\"btttop\"></span><span class=\"bttmiddle\">");
 288
 289                                 wc_printf("<i>%s: %s</i><br />", _("From"), Cal->from);
 290                                 wc_printf("<i>%s</i> ",          _("Summary:"));
 291                                 escputs((char *)icalproperty_get_comment(p));
 292                                 wc_printf("<br />");
 293
 294                                 q = icalcomponent_get_first_property(
 295                                         Cal->cal,
 296                                         ICAL_LOCATION_PROPERTY);
 297                                 if (q) {
 298                                         wc_printf("<i>%s</i> ", _("Location:"));
 299                                         escputs((char *)icalproperty_get_comment(q));
 300                                         wc_printf("<br />");
 301                                 }
 302
 303                                 /*
 304                                  * Only show start/end times if we're actually looking at the VEVENT
 305                                  * component.  Otherwise it shows bogus dates for e.g. timezones
 306                                  */
 307                                 if (icalcomponent_isa(Cal->cal) == ICAL_VEVENT_COMPONENT) {
 308
 309                                         q = icalcomponent_get_first_property(Cal->cal, ICAL_DTSTART_PROPERTY);
 310                                         if (q != NULL) {
 311                                                 int no_end = 0;
 312
 313                                                 t = icalproperty_get_dtstart(q);
 314                                                 q = icalcomponent_get_first_property(Cal->cal, ICAL_DTEND_PROPERTY);
 315                                                 if (q != NULL) {
 316                                                         end_t = icalproperty_get_dtend(q);
 317                                                 }
 318                                                 else {
 319                                                         /*
 320                                                          * events with starting date/time equal
 321                                                          * ending date/time might get only
 322                                                          * DTSTART but no DTEND
 323                                                          */
 324                                                         no_end = 1;
 325                                                 }
 326
 327                                                 if (t.is_date) {
 328                                                         /* all day event */
 329                                                         struct tm d_tm;
 330
 331                                                         if (!no_end) {
 332                                                                 /* end given, have to adjust it */
 333                                                                 icaltime_adjust(&end_t, -1, 0, 0, 0);
 334                                                         }
 335                                                         memset(&d_tm, 0, sizeof d_tm);
 336                                                         d_tm.tm_year = t.year - 1900;
 337                                                         d_tm.tm_mon = t.month - 1;
 338                                                         d_tm.tm_mday = t.day;
 339                                                         wc_strftime(buf, sizeof buf, "%x", &d_tm);
 340
 341                                                         if (no_end || !icaltime_compare(t, end_t)) {
 342                                                                 wc_printf("<i>%s</i> %s<br>",
 343                                                                         _("Date:"), buf);
 344                                                         }
 345                                                         else {
 346                                                                 wc_printf("<i>%s</i> %s<br>",
 347                                                                         _("Starting date:"), buf);
 348                                                                 d_tm.tm_year = end_t.year - 1900;
 349                                                                 d_tm.tm_mon = end_t.month - 1;
 350                                                                 d_tm.tm_mday = end_t.day;
 351                                                                 wc_strftime(buf, sizeof buf, "%x", &d_tm);
 352                                                                 wc_printf("<i>%s</i> %s<br>",
 353                                                                         _("Ending date:"), buf);
 354                                                         }
 355                                                 }
 356                                                 else {
 357                                                         tt = icaltime_as_timet(t);
 358                                                         webcit_fmt_date(buf, 256, tt, DATEFMT_BRIEF);
 359                                                         if (no_end || !icaltime_compare(t, end_t)) {
 360                                                                 wc_printf("<i>%s</i> %s<br>",
 361                                                                         _("Date/time:"), buf);
 362                                                         }
 363                                                         else {
 364                                                                 wc_printf("<i>%s</i> %s<br>",
 365                                                                         _("Starting date/time:"), buf);
 366                                                                 tt = icaltime_as_timet(end_t);
 367                                                                 webcit_fmt_date(buf, 256, tt, DATEFMT_BRIEF);
 368                                                                 wc_printf("<i>%s</i> %s<br>", _("Ending date/time:"), buf);
 369                                                         }
 370
 371                                                 }
 372                                         }
 373
 374                                 }
 375
 376                                 q = icalcomponent_get_first_property(Cal->cal, ICAL_DESCRIPTION_PROPERTY);
 377                                 if (q) {
 378                                         wc_printf("<i>%s</i> ", _("Notes:"));
 379                                         escputs((char *)icalproperty_get_comment(q));
 380                                         wc_printf("<br />");
 381                                 }
 382
 383                                 wc_printf("</span><span class=\"bttbottom\"></span></span>");
 384                                 wc_printf("</a></font><br />\n");
 385
 386                                 if (all_day_event) {
 387                                         wc_printf("</td></tr></table>");
 388                                 }
 389
 390                         }
 391
 392                 }
 393
 394
 395         }
 396         DeleteHashPos(&Pos);
 397 }
 398
 399
 400 /*
 401  * Display one day of a whole month view of a calendar
 402  */
 403 void calendar_month_view_brief_events(time_t thetime, const char *daycolor) {
 404         long hklen;
 405         const char *HashKey;
 406         void *vCal;
 407         HashPos *Pos;
 408         time_t event_tt;
 409         time_t event_tts;
 410         time_t event_tte;
 411         wcsession *WCC = WC;
 412         struct tm event_tms;
 413         struct tm event_tme;
 414         struct tm today_tm;
 415         icalproperty *p;
 416         icalproperty *e;
 417         struct icaltimetype t;
 418         disp_cal *Cal;
 419         int month, day, year;
 420         int all_day_event = 0;
 421         char *timeformat;
 422         int time_format;
 423
 424         time_format = get_time_format_cached ();
 425
 426         if (time_format == WC_TIMEFORMAT_24) timeformat="%k:%M";
 427         else timeformat="%I:%M %p";
 428
 429         localtime_r(&thetime, &today_tm);
 430         month = today_tm.tm_mon + 1;
 431         day = today_tm.tm_mday;
 432         year = today_tm.tm_year + 1900;
 433
 434         Pos = GetNewHashPos(WCC->disp_cal_items, 0);
 435         while (GetNextHashPos(WCC->disp_cal_items, Pos, &hklen, &HashKey, &vCal)) {
 436                 Cal = (disp_cal*)vCal;
 437                 p = icalcomponent_get_first_property(Cal->cal, ICAL_DTSTART_PROPERTY);
 438                 if (p != NULL) {
 439                         t = icalproperty_get_dtstart(p);
 440                         event_tt = icaltime_as_timet(t);
 441                         event_tts=event_tt;
 442                         if (t.is_date) all_day_event = 1;
 443                         else all_day_event = 0;
 444
 445                         if (all_day_event) {
 446                                 gmtime_r(&event_tts, &event_tms);
 447                         }
 448                         else {
 449                                 localtime_r(&event_tts, &event_tms);
 450                         }
 451                         /* \todo epoch &! daymask */
 452                         if ((event_tms.tm_year == today_tm.tm_year)
 453                                 && (event_tms.tm_mon == today_tm.tm_mon)
 454                         && (event_tms.tm_mday == today_tm.tm_mday)) {
 455
 456
 457                         char sbuf[255];
 458                         char ebuf[255];
 459
 460                         p = icalcomponent_get_first_property(
 461                                 Cal->cal,
 462                                 ICAL_SUMMARY_PROPERTY);
 463                         if (p == NULL) {
 464                                 p = icalproperty_new_summary(_("Untitled Event"));
 465                                 icalcomponent_add_property(Cal->cal, p);
 466                         }
 467                         e = icalcomponent_get_first_property(
 468                                 Cal->cal,
 469                                 ICAL_DTEND_PROPERTY);
 470                         if ((p != NULL) && (e != NULL)) {
 471                                 time_t difftime;
 472                                 int hours, minutes;
 473                                 t = icalproperty_get_dtend(e);
 474                                 event_tte = icaltime_as_timet(t);
 475                                 localtime_r(&event_tte, &event_tme);
 476                                 difftime=(event_tte-event_tts)/60;
 477                                 hours=(int)(difftime / 60);
 478                                 minutes=difftime % 60;
 479                                 wc_printf("<tr><td bgcolor='%s'>%i:%2i</td><td bgcolor='%s'>"
 480                                         "<font size=\"-1\">"
 481                                         "<a class=\"event%s\" href=\"display_edit_event?msgnum=%ld?calview=calbrief?year=%s?month=%s?day=%s\">",
 482                                         daycolor,
 483                                         hours, minutes,
 484                                         (Cal->unread)?"_unread":"_read",
 485                                         daycolor,
 486                                         Cal->cal_msgnum,
 487                                         bstr("year"),
 488                                         bstr("month"),
 489                                         bstr("day")
 490                                         );
 491
 492                                 escputs((char *)
 493                                         icalproperty_get_comment(p));
 494                                 /* \todo: allso ammitime format */
 495                                 wc_strftime(&sbuf[0], sizeof(sbuf), timeformat, &event_tms);
 496                                 wc_strftime(&ebuf[0], sizeof(sbuf), timeformat, &event_tme);
 497
 498                                 wc_printf("</a></font></td>"
 499                                         "<td bgcolor='%s'>%s</td><td bgcolor='%s'>%s</td></tr>",
 500                                         daycolor,
 501                                         sbuf,
 502                                         daycolor,
 503                                         ebuf);
 504                                 }
 505
 506                         }
 507
 508
 509                 }
 510         }
 511         DeleteHashPos(&Pos);
 512 }
 513
 514
 515 /*
 516  * view one month. pretty view
 517  */
 518 void calendar_month_view(int year, int month, int day) {
 519         struct tm starting_tm;
 520         struct tm tm;
 521         struct tm today_tm;
 522         time_t thetime;
 523         int i;
 524         time_t previous_month;
 525         time_t next_month;
 526         time_t colheader_time;
 527         time_t today_timet;
 528         struct tm colheader_tm;
 529         char colheader_label[32];
 530         long weekstart = 0;
 531
 532         /*
 533          * Make sure we know which day is today.
 534          */
 535         today_timet = time(NULL);
 536         localtime_r(&today_timet, &today_tm);
 537
 538         /*
 539          * Determine what day to start.  If an impossible value is found, start on Sunday.
 540          */
 541         get_pref_long("weekstart", &weekstart, 17);
 542         if (weekstart > 6) weekstart = 0;
 543
 544         /*
 545          * Now back up to the 1st of the month...
 546          */
 547         memset(&starting_tm, 0, sizeof(struct tm));
 548
 549         starting_tm.tm_year = year - 1900;
 550         starting_tm.tm_mon = month - 1;
 551         starting_tm.tm_mday = day;
 552         thetime = mktime(&starting_tm);
 553
 554         memcpy(&tm, &starting_tm, sizeof(struct tm));
 555         while (tm.tm_mday != 1) {
 556                 thetime = thetime - (time_t)86400;      /* go back 24 hours */
 557                 localtime_r(&thetime, &tm);
 558         }
 559
 560         /* Determine previous and next months ... for links */
 561         previous_month = thetime - (time_t)864000L;     /* back 10 days */
 562         next_month = thetime + (time_t)(31L * 86400L);  /* ahead 31 days */
 563
 564         /* Now back up until we're on the user's preferred start day */
 565         localtime_r(&thetime, &tm);
 566         while (tm.tm_wday != weekstart) {
 567                 thetime = thetime - (time_t)86400;      /* go back 24 hours */
 568                 localtime_r(&thetime, &tm);
 569         }
 570
 571         /* Outer table (to get the background color) */
 572         wc_printf("<div class=\"fix_scrollbar_bug\">"
 573                 "<table class=\"calendar\"> \n <tr><td>");
 574
 575         wc_printf("<table width=\"100%%\" border=\"0\" cellpadding=\"0\" cellspacing=\"0\"><tr>\n");
 576
 577         wc_printf("<td align=\"center\">");
 578
 579         localtime_r(&previous_month, &tm);
 580         wc_printf("<a href=\"readfwd?calview=month?year=%d?month=%d?day=1\">",
 581                 (int)(tm.tm_year)+1900, tm.tm_mon + 1);
 582         wc_printf("<img alt=\"%s\" align=\"middle\" src=\"static/prevdate_32x.gif\" border=\"0\"></a>\n", _("previous"));
 583
 584         wc_strftime(colheader_label, sizeof colheader_label, "%B", &starting_tm);
 585         wc_printf("&nbsp;&nbsp;"
 586                 "<font size=\"+1\" color=\"#FFFFFF\">"
 587                 "%s %d"
 588                 "</font>"
 589                 "&nbsp;&nbsp;", colheader_label, year);
 590
 591         localtime_r(&next_month, &tm);
 592         wc_printf("<a href=\"readfwd?calview=month?year=%d?month=%d?day=1\">",
 593                 (int)(tm.tm_year)+1900, tm.tm_mon + 1);
 594         wc_printf("<img alt=\"%s\" align=\"middle\" src=\"static/nextdate_32x.gif\" border=\"0\"></A>\n", _("next"));
 595
 596         wc_printf("</td></tr></table>\n");
 597
 598         /* Inner table (the real one) */
 599         wc_printf("<table width=\"100%%\" border=\"0\" cellpadding=\"1\" cellspacing=\"1\" "
 600                 "bgcolor='#204B78' id=\"inner_month\"><tr>");
 601         wc_printf("<th align=\"center\" width=\"2%%\"></th>");
 602         colheader_time = thetime;
 603         for (i=0; i<7; ++i) {
 604                 colheader_time = thetime + (i * 86400) ;
 605                 localtime_r(&colheader_time, &colheader_tm);
 606                 wc_strftime(colheader_label, sizeof colheader_label, "%A", &colheader_tm);
 607                 wc_printf("<th align=\"center\" width=\"14%%\">"
 608                         "<font color=\"#FFFFFF\">%s</font></th>", colheader_label);
 609
 610         }
 611         wc_printf("</tr>\n");
 612
 613
 614         /* Now do 35 or 42 days */
 615         localtime_r(&thetime, &tm);
 616         for (i = 0; i<42; ++i) {
 617
 618                 /* Before displaying the first day of the week, start a new row */
 619                 if ((i % 7) == 0) {
 620                         wc_printf("<tr><td class=\"week_of_year\">");
 621                         wc_strftime(colheader_label, sizeof colheader_label, "%V", &tm);
 622                         wc_printf("%s ", colheader_label);
 623                 }
 624
 625                 wc_printf("<td class=\"cal%s\"><div class=\"day\">",
 626                         ((tm.tm_mon != month-1) ? "out" :
 627                                 (((tm.tm_year == today_tm.tm_year) && (tm.tm_mon == today_tm.tm_mon) && (tm.tm_mday == today_tm.tm_mday)) ? "today" :
 628                                 ((tm.tm_wday==0 || tm.tm_wday==6) ? "weekend" :
 629                                         "day")))
 630                         );
 631                 if ((i==0) || (tm.tm_mday == 1)) {
 632                         wc_strftime(colheader_label, sizeof colheader_label, "%B", &tm);
 633                         wc_printf("%s ", colheader_label);
 634                 }
 635                 wc_printf("<a href=\"readfwd?calview=day?year=%d?month=%d?day=%d\">"
 636                         "%d</a></div>",
 637                         tm.tm_year + 1900,
 638                         tm.tm_mon + 1,
 639                         tm.tm_mday,
 640                         tm.tm_mday);
 641
 642                 /* put the data here, stupid */
 643                 calendar_month_view_display_events(
 644                         tm.tm_year + 1900,
 645                         tm.tm_mon + 1,
 646                         tm.tm_mday
 647                         );
 648
 649                 wc_printf("</td>");
 650
 651                 /* After displaying the last day of the week, end the row */
 652                 if ((i % 7) == 6) {
 653                         wc_printf("</tr>\n");
 654                 }
 655
 656                 thetime += (time_t)86400;               /* ahead 24 hours */
 657                 localtime_r(&thetime, &tm);
 658
 659                 if ( ((i % 7) == 6) && (tm.tm_mon != month-1) && (tm.tm_mday < 15) ) {
 660                         i = 100;        /* break out of the loop */
 661                 }
 662         }
 663
 664         wc_printf("</table>"                    /* end of inner table */
 665                 "</td></tr></table>"            /* end of outer table */
 666                 "</div>\n");
 667 }
 668
 669 /*
 670  * view one month. brief view
 671  */
 672 void calendar_brief_month_view(int year, int month, int day) {
 673         struct tm starting_tm;
 674         struct tm tm;
 675         time_t thetime;
 676         int i;
 677         time_t previous_month;
 678         time_t next_month;
 679         char month_label[32];
 680
 681         /* Determine what day to start.
 682          * First, back up to the 1st of the month...
 683          */
 684         memset(&starting_tm, 0, sizeof(struct tm));
 685         starting_tm.tm_year = year - 1900;
 686         starting_tm.tm_mon = month - 1;
 687         starting_tm.tm_mday = day;
 688         thetime = mktime(&starting_tm);
 689
 690         memcpy(&tm, &starting_tm, sizeof(struct tm));
 691         while (tm.tm_mday != 1) {
 692                 thetime = thetime - (time_t)86400;      /* go back 24 hours */
 693                 localtime_r(&thetime, &tm);
 694         }
 695
 696         /* Determine previous and next months ... for links */
 697         previous_month = thetime - (time_t)864000L;     /* back 10 days */
 698         next_month = thetime + (time_t)(31L * 86400L);  /* ahead 31 days */
 699
 700         /* Now back up until we're on a Sunday */
 701         localtime_r(&thetime, &tm);
 702         while (tm.tm_wday != 0) {
 703                 thetime = thetime - (time_t)86400;      /* go back 24 hours */
 704                 localtime_r(&thetime, &tm);
 705         }
 706
 707         /* Outer table (to get the background color) */
 708         wc_printf("<div class=\"fix_scrollbar_bug\">"
 709                 "<table width=\"100%%\" border=\"0\" cellpadding=\"0\" cellspacing=\"0\" "
 710                 "bgcolor=#204B78><tr><td>\n");
 711
 712         wc_printf("<table width=\"100%%\" border=\"0\" cellpadding=\"0\" cellspacing=\"0\"><tr>\n");
 713
 714         wc_printf("<td align=\"center\">");
 715
 716         localtime_r(&previous_month, &tm);
 717         wc_printf("<a href=\"readfwd?calview=month?year=%d?month=%d?day=1\">",
 718                 (int)(tm.tm_year)+1900, tm.tm_mon + 1);
 719         wc_printf("<img alt=\"%s\" align=\"middle\" src=\"static/prevdate_32x.gif\" border=\"0\"></a>\n", _("previous"));
 720
 721         wc_strftime(month_label, sizeof month_label, "%B", &tm);
 722         wc_printf("&nbsp;&nbsp;"
 723                 "<font size=\"+1\" color=\"#FFFFFF\">"
 724                 "%s %d"
 725                 "</font>"
 726                 "&nbsp;&nbsp;", month_label, year);
 727
 728         localtime_r(&next_month, &tm);
 729         wc_printf("<a href=\"readfwd?calview=month?year=%d?month=%d?day=1\">",
 730                 (int)(tm.tm_year)+1900, tm.tm_mon + 1);
 731         wc_printf("<img alt=\"%s\" align=\"middle\" src=\"static/nextdate_32x.gif\" border=\"0\"></a>\n", _("next"));
 732
 733         wc_printf("</td></tr></table>\n");
 734
 735         /* Inner table (the real one) */
 736         wc_printf("<table width=\"100%%\" border=\"0\" cellpadding=\"1\" cellspacing=\"1\" "
 737                 "bgcolor=#EEEECC><TR>");
 738         wc_printf("</tr>\n");
 739         wc_printf("<tr><td colspan=\"100%%\">\n");
 740
 741         /* Now do 35 days */
 742         for (i = 0; i < 35; ++i) {
 743                 char weeknumber[255];
 744                 char weekday_name[32];
 745                 char *daycolor;
 746                 localtime_r(&thetime, &tm);
 747
 748
 749                 /* Before displaying Sunday, start a new CELL */
 750                 if ((i % 7) == 0) {
 751                         wc_strftime(&weeknumber[0], sizeof(weeknumber), "%U", &tm);
 752                         wc_printf("<table border='0' bgcolor=\"#EEEECC\" width='100%%'> <tr><th colspan='4'>%s %s</th></tr>"
 753                                 "   <tr><td>%s</td><td width='70%%'>%s</td><td>%s</td><td>%s</td></tr>\n",
 754                                 _("Week"),
 755                                 weeknumber,
 756                                 _("Hours"),
 757                                 _("Subject"),
 758                                 _("Start"),
 759                                 _("End")
 760                                 );
 761                 }
 762
 763                 daycolor=((tm.tm_mon != month-1) ? "DDDDDD" :
 764                         ((tm.tm_wday==0 || tm.tm_wday==6) ? "EEEECC" :
 765                                 "FFFFFF"));
 766
 767                 /* Day Header */
 768                 wc_strftime(weekday_name, sizeof weekday_name, "%A", &tm);
 769                 wc_printf("<tr><td bgcolor='%s' colspan='1' align='left'> %s,%i."
 770                         "</td><td bgcolor='%s' colspan='3'><hr></td></tr>\n",
 771                         daycolor,
 772                         weekday_name,tm.tm_mday,
 773                         daycolor);
 774
 775                 /* put the data of one day  here, stupid */
 776                 calendar_month_view_brief_events(thetime, daycolor);
 777
 778
 779                 /* After displaying Saturday, end the row */
 780                 if ((i % 7) == 6) {
 781                         wc_printf("</td></tr></table>\n");
 782                 }
 783
 784                 thetime += (time_t)86400;               /* ahead 24 hours */
 785         }
 786
 787         wc_printf("</table>"                    /* end of inner table */
 788                 "</td></tr></table>"            /* end of outer table */
 789                 "</div>\n");
 790 }
 791
 792 /*
 793  * Calendar week view -- not implemented yet, this is a stub function
 794  */
 795 void calendar_week_view(int year, int month, int day) {
 796         wc_printf("<center><i>week view FIXME</i></center><br />\n");
 797 }
 798
 799
 800 /*
 801  * display one day
 802  * Display events for a particular hour of a particular day.
 803  * (Specify hour < 0 to show "all day" events)
 804  *
 805  * dstart and dend indicate which hours our "daytime" begins and end
 806  */
 807 void calendar_day_view_display_events(time_t thetime,
 808         int year,
 809         int month,
 810         int day,
 811         int notime_events,
 812         int dstart,
 813         int dend)
 814 {
 815         long hklen;
 816         const char *HashKey;
 817         void *vCal;
 818         HashPos *Pos;
 819         icalproperty *p = NULL;
 820         icalproperty *q = NULL;
 821         time_t event_tt;
 822         time_t event_tte;
 823         struct tm event_te;
 824         struct tm event_tm;
 825         int show_event = 0;
 826         int all_day_event = 0;
 827         int ongoing_event = 0;
 828         wcsession *WCC = WC;
 829         disp_cal *Cal;
 830         struct icaltimetype t;
 831         struct icaltimetype end_t;
 832         struct icaltimetype today_start_t;
 833         struct icaltimetype today_end_t;
 834         struct icaltimetype today_t;
 835         struct tm starting_tm;
 836         struct tm ending_tm;
 837         int top = 0;
 838         int bottom = 0;
 839         int gap = 1;
 840         int startmin = 0;
 841         int diffmin = 0;
 842         int endmin = 0;
 843
 844         char buf[256];
 845
 846         if (GetCount(WCC->disp_cal_items) == 0) {
 847                 /* nothing to display */
 848                 return;
 849         }
 850
 851         /* Create an imaginary event which spans the current day.  Any events which
 852          * overlap with this one take place at least partially in this day.
 853          */
 854         memset(&starting_tm, 0, sizeof(struct tm));
 855         starting_tm.tm_year = year - 1900;
 856         starting_tm.tm_mon = month - 1;
 857         starting_tm.tm_mday = day;
 858         starting_tm.tm_hour = 0;
 859         starting_tm.tm_min = 0;
 860         today_start_t = icaltime_from_timet_with_zone(mktime(&starting_tm), 0, icaltimezone_get_utc_timezone());
 861         today_start_t.is_utc = 1;
 862
 863         memset(&ending_tm, 0, sizeof(struct tm));
 864         ending_tm.tm_year = year - 1900;
 865         ending_tm.tm_mon = month - 1;
 866         ending_tm.tm_mday = day;
 867         ending_tm.tm_hour = 23;
 868         ending_tm.tm_min = 59;
 869         today_end_t = icaltime_from_timet_with_zone(mktime(&ending_tm), 0, icaltimezone_get_utc_timezone());
 870         today_end_t.is_utc = 1;
 871
 872         /*
 873          * Create another one without caring about the timezone for all day events.
 874          */
 875         today_t = icaltime_null_date();
 876         today_t.year = year;
 877         today_t.month = month;
 878         today_t.day = day;
 879
 880         /* Now loop through our list of events to see which ones occur today.
 881          */
 882         Pos = GetNewHashPos(WCC->disp_cal_items, 0);
 883         while (GetNextHashPos(WCC->disp_cal_items, Pos, &hklen, &HashKey, &vCal)) {
 884                 Cal = (disp_cal*)vCal;
 885
 886                 all_day_event = 0;
 887                 ongoing_event=0;
 888
 889                 q = icalcomponent_get_first_property(Cal->cal, ICAL_DTSTART_PROPERTY);
 890                 if (q != NULL) {
 891                         t = icalproperty_get_dtstart(q);
 892                         event_tt = icaltime_as_timet(t);
 893                         localtime_r(&event_tt, &event_te);
 894                 }
 895                 else {
 896                         memset(&t, 0, sizeof t);
 897                 }
 898
 899                 if (t.is_date) all_day_event = 1;
 900
 901                 q = icalcomponent_get_first_property(Cal->cal, ICAL_DTEND_PROPERTY);
 902                 if (q != NULL) {
 903                         end_t = icalproperty_get_dtend(q);
 904                 }
 905                 else {
 906                         /* no end given means end = start */
 907                         memcpy(&end_t, &t, sizeof(struct icaltimetype));
 908                 }
 909
 910                 if (all_day_event)
 911                 {
 912                         show_event = ical_ctdl_is_overlap(t, end_t, today_t, icaltime_null_time());
 913                         if (icaltime_compare(t, end_t)) {
 914                                 /*
 915                                  * the end date is non-inclusive so adjust it by one
 916                                  * day because our test is inclusive, note that a day is
 917                                  * not to much because we are talking about all day
 918                                  * events
 919                                  */
 920                                 icaltime_adjust(&end_t, -1, 0, 0, 0);
 921                         }
 922                 }
 923                 else
 924                 {
 925                         show_event = ical_ctdl_is_overlap(t, end_t, today_start_t, today_end_t);
 926                 }
 927
 928                 event_tte = icaltime_as_timet(end_t);
 929                 localtime_r(&event_tte, &event_tm);
 930
 931                 /* If we determined that this event occurs today, then display it.
 932                  */
 933                 p = icalcomponent_get_first_property(Cal->cal,ICAL_SUMMARY_PROPERTY);
 934                 if (p == NULL) {
 935                         p = icalproperty_new_summary(_("Untitled Event"));
 936                         icalcomponent_add_property(Cal->cal, p);
 937                 }
 938
 939                 if ((show_event) && (p != NULL)) {
 940
 941                         if ((event_te.tm_mday != day) || (event_tm.tm_mday != day)) ongoing_event = 1;
 942
 943                         if (all_day_event && notime_events)
 944                         {
 945                                 wc_printf("<li class=\"event_framed%s\"> "
 946                                         "<a href=\"display_edit_event?"
 947                                         "msgnum=%ld?calview=day?year=%d?month=%d?day=%d\" "
 948                                         " class=\"event_title\">"
 949                                         ,
 950                                         (Cal->unread)?"_unread":"_read",
 951                                         Cal->cal_msgnum, year, month, day
 952                                 );
 953                                 escputs((char *) icalproperty_get_comment(p));
 954                                 wc_printf("<span class=\"tooltip\"><span class=\"btttop\"></span><span class=\"bttmiddle\">");
 955                                 wc_printf("<i>%s</i><br />",      _("All day event"));
 956                                 wc_printf("<i>%s: %s</i><br />",  _("From"), Cal->from);
 957                                 wc_printf("<i>%s</i> ",           _("Summary:"));
 958                                 escputs((char *) icalproperty_get_comment(p));
 959                                 wc_printf("<br />");
 960                                 q = icalcomponent_get_first_property(Cal->cal,ICAL_LOCATION_PROPERTY);
 961                                 if (q) {
 962                                         wc_printf("<i>%s</i> ", _("Location:"));
 963                                         escputs((char *)icalproperty_get_comment(q));
 964                                         wc_printf("<br />");
 965                                 }
 966                                 if (!icaltime_compare(t, end_t)) { /* one day only */
 967                                         webcit_fmt_date(buf, 256, event_tt, DATEFMT_LOCALEDATE);
 968                                         wc_printf("<i>%s</i> %s<br>", _("Date:"), buf);
 969                                 }
 970                                 else {
 971                                         webcit_fmt_date(buf, 256, event_tt, DATEFMT_LOCALEDATE);
 972                                         wc_printf("<i>%s</i> %s<br>", _("Starting date:"), buf);
 973                                         webcit_fmt_date(buf, 256, event_tte, DATEFMT_LOCALEDATE);
 974                                         wc_printf("<i>%s</i> %s<br>", _("Ending date:"), buf);
 975                                 }
 976                                 q = icalcomponent_get_first_property(Cal->cal,ICAL_DESCRIPTION_PROPERTY);
 977                                 if (q) {
 978                                         wc_printf("<i>%s</i> ", _("Notes:"));
 979                                         escputs((char *)icalproperty_get_comment(q));
 980                                         wc_printf("<br />");
 981                                 }
 982                                 wc_printf("</span><span class=\"bttbottom\"></span></span>");
 983                                 wc_printf("</a> <span>(");
 984                                 wc_printf(_("All day event"));
 985                                 wc_printf(")</span></li>\n");
 986                         }
 987                         else if (ongoing_event && notime_events)
 988                         {
 989                                 wc_printf("<li class=\"event_framed%s\"> "
 990                                         "<a href=\"display_edit_event?"
 991                                         "msgnum=%ld&calview=day?year=%d?month=%d?day=%d\" "
 992                                         " class=\"event_title\">"
 993                                         ,
 994                                         (Cal->unread)?"_unread":"_read",
 995                                         Cal->cal_msgnum, year, month, day
 996                                 );
 997                                 escputs((char *) icalproperty_get_comment(p));
 998                                 wc_printf("<span class=\"tooltip\"><span class=\"btttop\"></span><span class=\"bttmiddle\">");
 999                                 wc_printf("<i>%s</i><br />",     _("Ongoing event"));
1000                                 wc_printf("<i>%s: %s</i><br />", _("From"), Cal->from);
1001                                 wc_printf("<i>%s</i> ",          _("Summary:"));
1002                                 escputs((char *) icalproperty_get_comment(p));
1003                                 wc_printf("<br />");
1004                                 q = icalcomponent_get_first_property(Cal->cal,ICAL_LOCATION_PROPERTY);
1005                                 if (q) {
1006                                         wc_printf("<i>%s</i> ", _("Location:"));
1007                                         escputs((char *)icalproperty_get_comment(q));
1008                                         wc_printf("<br />");
1009                                                                 }
1010                                 webcit_fmt_date(buf, 256, event_tt, DATEFMT_BRIEF);
1011                                 wc_printf("<i>%s</i> %s<br>", _("Starting date/time:"), buf);
1012                                 webcit_fmt_date(buf, 256, event_tte, DATEFMT_BRIEF);
1013                                 wc_printf("<i>%s</i> %s<br>", _("Ending date/time:"), buf);
1014                                 q = icalcomponent_get_first_property(Cal->cal,ICAL_DESCRIPTION_PROPERTY);
1015                                 if (q) {
1016                                         wc_printf("<i>%s</i> ", _("Notes:"));
1017                                         escputs((char *)icalproperty_get_comment(q));
1018                                         wc_printf("<br />");
1019                                 }
1020                                 wc_printf("</span><span class=\"bttbottom\"></span></span>");
1021                                 wc_printf("</a> <span>(");
1022                                 wc_printf(_("Ongoing event"));
1023                                 wc_printf(")</span></li>\n");
1024                         }
1025                         else if (!all_day_event && !notime_events)
1026                         {
1027                                 gap++;
1028
1029                                 if (event_te.tm_mday != day) event_te.tm_hour = 0;
1030                                 if (event_tm.tm_mday != day) event_tm.tm_hour = 24;
1031
1032                                 /* Calculate the location of the top of the box */
1033                                 if (event_te.tm_hour < dstart) {
1034                                         startmin = diffmin = event_te.tm_min / 6;
1035                                         top = (event_te.tm_hour * EXTRATIMELINE) + startmin;
1036                                 }
1037                                 else if ((event_te.tm_hour >= dstart) && (event_te.tm_hour <= dend)) {
1038                                         startmin = diffmin = (event_te.tm_min / 2);
1039                                         top = (dstart * EXTRATIMELINE) + ((event_te.tm_hour - dstart) * TIMELINE) + startmin;
1040                                 }
1041                                 else if (event_te.tm_hour >dend) {
1042                                         startmin = diffmin = event_te.tm_min / 6;
1043                                         top = (dstart * EXTRATIMELINE) + ((dend - dstart - 1) * TIMELINE) + ((event_tm.tm_hour - dend + 1) * EXTRATIMELINE) + startmin ;
1044                                 }
1045                                 else {
1046                                         /* should never get here */
1047                                 }
1048
1049                                 /* Calculate the location of the bottom of the box */
1050                                 if (event_tm.tm_hour < dstart) {
1051                                         endmin = diffmin = event_tm.tm_min / 6;
1052                                         bottom = (event_tm.tm_hour * EXTRATIMELINE) + endmin;
1053                                 }
1054                                 else if ((event_tm.tm_hour >= dstart) && (event_tm.tm_hour <= dend)) {
1055                                         endmin = diffmin = (event_tm.tm_min / 2);
1056                                         bottom = (dstart * EXTRATIMELINE) + ((event_tm.tm_hour - dstart) * TIMELINE) + endmin ;
1057                                 }
1058                                 else if (event_tm.tm_hour >dend) {
1059                                         endmin = diffmin = event_tm.tm_min / 6;
1060                                         bottom = (dstart * EXTRATIMELINE) + ((dend - dstart + 1) * TIMELINE) + ((event_tm.tm_hour - dend - 1) * EXTRATIMELINE) + endmin;
1061                                 }
1062                                 else {
1063                                         /* should never get here */
1064                                 }
1065
1066                                 wc_printf("<dd  class=\"event_framed%s\" "
1067                                         "style=\"position: absolute; "
1068                                         "top:%dpx; left:%dpx; "
1069                                         "height:%dpx; \" >",
1070                                         (Cal->unread)?"_unread":"_read",
1071                                         top, (gap * 40), (bottom-top)
1072                                         );
1073                                 wc_printf("<a href=\"display_edit_event?"
1074                                         "msgnum=%ld?calview=day?year=%d?month=%d?day=%d?hour=%d\" "
1075                                         "class=\"event_title\">"
1076                                         ,
1077                                         Cal->cal_msgnum, year, month, day, t.hour
1078                                 );
1079                                 escputs((char *) icalproperty_get_comment(p));
1080                                 wc_printf("<span class=\"tooltip\"><span class=\"btttop\"></span><span class=\"bttmiddle\">");
1081                                 wc_printf("<i>%s: %s</i><br />", _("From"), Cal->from);
1082                                 wc_printf("<i>%s</i> ",          _("Summary:"));
1083                                 escputs((char *) icalproperty_get_comment(p));
1084                                 wc_printf("<br />");
1085                                 q = icalcomponent_get_first_property(Cal->cal,ICAL_LOCATION_PROPERTY);
1086                                 if (q) {
1087                                         wc_printf("<i>%s</i> ", _("Location:"));
1088                                         escputs((char *)icalproperty_get_comment(q));
1089                                         wc_printf("<br />");
1090                                                                 }
1091                                 if (!icaltime_compare(t, end_t)) { /* one day only */
1092                                         webcit_fmt_date(buf, 256, event_tt, DATEFMT_BRIEF);
1093                                         wc_printf("<i>%s</i> %s<br>", _("Date/time:"), buf);
1094                                 }
1095                                 else {
1096                                         webcit_fmt_date(buf, 256, event_tt, DATEFMT_BRIEF);
1097                                         wc_printf("<i>%s</i> %s<br>", _("Starting date/time:"), buf);
1098                                         webcit_fmt_date(buf, 256, event_tte, DATEFMT_BRIEF);
1099                                         wc_printf("<i>%s</i> %s<br>", _("Ending date/time:"), buf);
1100                                 }
1101                                 q = icalcomponent_get_first_property(Cal->cal,ICAL_DESCRIPTION_PROPERTY);
1102                                 if (q) {
1103                                         wc_printf("<i>%s</i> ", _("Notes:"));
1104                                         escputs((char *)icalproperty_get_comment(q));
1105                                         wc_printf("<br />");
1106                                 }
1107                                 wc_printf("</span><span class=\"bttbottom\"></span></span>");
1108                                 wc_printf("</a></dd>\n");
1109                         }
1110                 }
1111         }
1112         DeleteHashPos(&Pos);
1113 }
1114
1115 /*
1116  * view one day
1117  */
1118 void calendar_day_view(int year, int month, int day) {
1119         int hour;
1120         struct icaltimetype today, yesterday, tomorrow;
1121         long daystart;
1122         long dayend;
1123         struct tm d_tm;
1124         char d_str[160];
1125         int time_format;
1126         time_t today_t;
1127         int timeline = TIMELINE;
1128         int extratimeline = EXTRATIMELINE;
1129         int gap = 0;
1130         int hourlabel;
1131         int extrahourlabel;
1132
1133         time_format = get_time_format_cached ();
1134         get_pref_long("daystart", &daystart, 8);
1135         get_pref_long("dayend", &dayend, 17);
1136
1137         /* when loading daystart/dayend, replace missing, corrupt, or impossible values with defaults */
1138         if ((daystart < 0) || (dayend < 2) || (daystart >= 23) || (dayend > 23) || (dayend <= daystart)) {
1139                 daystart = 9;
1140                 dayend = 17;
1141         }
1142
1143         /* Today's date */
1144         memset(&d_tm, 0, sizeof d_tm);
1145         d_tm.tm_year = year - 1900;
1146         d_tm.tm_mon = month - 1;
1147         d_tm.tm_mday = day;
1148         today_t = mktime(&d_tm);
1149
1150         /* Figure out the dates for "yesterday" and "tomorrow" links */
1151
1152         memset(&today, 0, sizeof(struct icaltimetype));
1153         today.year = year;
1154         today.month = month;
1155         today.day = day;
1156         today.is_date = 1;
1157
1158         memcpy(&yesterday, &today, sizeof(struct icaltimetype));
1159         --yesterday.day;
1160         yesterday = icaltime_normalize(yesterday);
1161
1162         memcpy(&tomorrow, &today, sizeof(struct icaltimetype));
1163         ++tomorrow.day;
1164         tomorrow = icaltime_normalize(tomorrow);
1165
1166         wc_printf("<div class=\"fix_scrollbar_bug\">");
1167
1168         /* Inner table (the real one) */
1169         wc_printf("<table class=\"calendar\" id=\"inner_day\"><tr> \n");
1170
1171         /* Innermost cell (contains hours etc.) */
1172         wc_printf("<td class=\"events_of_the_day\" >");
1173         wc_printf("<dl class=\"events\" >");
1174
1175         /* Now the middle of the day... */
1176
1177         extrahourlabel = extratimeline - 2;
1178         hourlabel = extrahourlabel * 150 / 100;
1179         if (hourlabel > (timeline - 2)) hourlabel = timeline - 2;
1180
1181         for (hour = 0; hour < daystart; ++hour) {       /* could do HEIGHT=xx */
1182                 wc_printf("<dt class=\"extrahour\"      "
1183                         "style=\"               "
1184                         "position: absolute;    "
1185                         "top: %dpx; left: 0px;  "
1186                         "height: %dpx;          "
1187                         "font-size: %dpx;       "
1188                         "\" >                   "
1189                         "<a href=\"display_edit_event?msgnum=0"
1190                         "?calview=day?year=%d?month=%d?day=%d?hour=%d?minute=0\">",
1191                         (hour * extratimeline ),
1192                         extratimeline,
1193                         extrahourlabel,
1194                         year, month, day, hour
1195                         );
1196
1197                 if (time_format == WC_TIMEFORMAT_24) {
1198                         wc_printf("%2d:00</a> ", hour);
1199                 }
1200                 else {
1201                         wc_printf("%d:00%s</a> ",
1202                                 ((hour == 0) ? 12 : (hour <= 12 ? hour : hour-12)),
1203                                 (hour < 12 ? "am" : "pm")
1204                                 );
1205                 }
1206
1207                 wc_printf("</dt>");
1208         }
1209
1210         gap = daystart * extratimeline;
1211
1212         for (hour = daystart; hour <= dayend; ++hour) {       /* could do HEIGHT=xx */
1213                 wc_printf("<dt class=\"hour\"     "
1214                         "style=\"               "
1215                         "position: absolute;    "
1216                         "top: %ldpx; left: 0px; "
1217                         "height: %dpx;          "
1218                         "font-size: %dpx;       "
1219                         "\" >                   "
1220                         "<a href=\"display_edit_event?msgnum=0?calview=day"
1221                         "?year=%d?month=%d?day=%d?hour=%d?minute=0\">",
1222                         gap + ((hour - daystart) * timeline ),
1223                         timeline,
1224                         hourlabel,
1225                         year, month, day, hour
1226                         );
1227
1228                 if (time_format == WC_TIMEFORMAT_24) {
1229                         wc_printf("%2d:00</a> ", hour);
1230                 }
1231                 else {
1232                         wc_printf("%d:00%s</a> ",
1233                                 (hour <= 12 ? hour : hour-12),
1234                                 (hour < 12 ? "am" : "pm")
1235                                                 );
1236                 }
1237
1238                 wc_printf("</dt>");
1239         }
1240
1241         gap = gap + ((dayend - daystart + 1) * timeline);
1242
1243         for (hour = (dayend + 1); hour < 24; ++hour) {       /* could do HEIGHT=xx */
1244                 wc_printf("<dt class=\"extrahour\"     "
1245                         "style=\"               "
1246                         "position: absolute;    "
1247                         "top: %ldpx; left: 0px; "
1248                         "height: %dpx;          "
1249                         "font-size: %dpx;       "
1250                         "\" >                   "
1251                         "<a href=\"display_edit_event?msgnum=0?calview=day"
1252                         "?year=%d?month=%d?day=%d?hour=%d?minute=0\">",
1253                         gap + ((hour - dayend - 1) * extratimeline ),
1254                         extratimeline,
1255                         extrahourlabel,
1256                         year, month, day, hour
1257                 );
1258
1259                 if (time_format == WC_TIMEFORMAT_24) {
1260                         wc_printf("%2d:00</a> ", hour);
1261                 }
1262                 else {
1263                         wc_printf("%d:00%s</a> ",
1264                                 (hour <= 12 ? hour : hour-12),
1265                                 (hour < 12 ? "am" : "pm")
1266                         );
1267                 }
1268
1269                 wc_printf("</dt>");
1270         }
1271
1272         /* Display events with start and end times on this day */
1273         calendar_day_view_display_events(today_t, year, month, day, 0, daystart, dayend);
1274
1275         wc_printf("</dl>");
1276         wc_printf("</td>");                     /* end of innermost table */
1277
1278         /* Display extra events (start/end times not present or not today) in the middle column */
1279         wc_printf("<td class=\"extra_events\">");
1280
1281         wc_printf("<ul>");
1282
1283         /* Display all-day events */
1284         calendar_day_view_display_events(today_t, year, month, day, 1, daystart, dayend);
1285
1286         wc_printf("</ul>");
1287
1288         wc_printf("</td>");     /* end extra on the middle */
1289
1290         wc_printf("<td width='20%%' align=\"center\" valign=top>");     /* begin stuff-on-the-right */
1291
1292         /* Begin todays-date-with-left-and-right-arrows */
1293         wc_printf("<table border=\"0\" width=\"100%%\" "
1294                 "cellspacing=\"0\" cellpadding=\"0\" bgcolor=\"#FFFFFF\">\n");
1295         wc_printf("<tr>");
1296
1297         /* Left arrow */
1298         wc_printf("<td align=\"center\">");
1299         wc_printf("<a href=\"readfwd?calview=day?year=%d?month=%d?day=%d\">",
1300                 yesterday.year, yesterday.month, yesterday.day);
1301         wc_printf("<img alt=\"previous\" align=\"middle\" src=\"static/prevdate_32x.gif\" border=\"0\"></a>");
1302         wc_printf("</td>");
1303
1304         wc_strftime(d_str, sizeof d_str,
1305                 "<td align=\"center\">"
1306                 "<font size='+2'>%A</font><br />"
1307                 "<font size='+2'>%B</font><br />"
1308                 "<font size='+3'>%d</font><br />"
1309                 "<font size='+2'>%Y</font><br />"
1310                 "</td>",
1311                 &d_tm
1312                 );
1313         wc_printf("%s", d_str);
1314
1315         /* Right arrow */
1316         wc_printf("<td align=\"center\">");
1317         wc_printf("<a href=\"readfwd?calview=day?year=%d?month=%d?day=%d\">",
1318                 tomorrow.year, tomorrow.month, tomorrow.day);
1319         wc_printf("<img alt=\"%s\" align=\"middle\" src=\"static/nextdate_32x.gif\""
1320                 " border=\"0\"></a>\n", _("next"));
1321         wc_printf("</td>");
1322
1323         wc_printf("</tr></table>\n");
1324         /* End todays-date-with-left-and-right-arrows */
1325
1326         /* Embed a mini month calendar in this space */
1327         wc_printf("<br />\n");
1328         embeddable_mini_calendar(year, month);
1329
1330         wc_printf("</td></tr>");                        /* end stuff-on-the-right */
1331
1332         wc_printf("</table>"                    /* end of inner table */
1333                 "</div>");
1334 }
1335
1336
1337 /*
1338  * Display today's events.  Returns the number of items displayed.
1339  */
1340 int calendar_summary_view(void) {
1341         long hklen;
1342         const char *HashKey;
1343         void *vCal;
1344         HashPos *Pos;
1345         disp_cal *Cal;
1346         icalproperty *p;
1347         struct icaltimetype t;
1348         time_t event_tt;
1349         struct tm event_tm;
1350         struct tm today_tm;
1351         time_t now;
1352         int all_day_event = 0;
1353         char timestring[SIZ];
1354         wcsession *WCC = WC;
1355         int num_displayed = 0;
1356
1357         if (GetCount(WC->disp_cal_items) == 0) {
1358                 return(0);
1359         }
1360
1361         now = time(NULL);
1362         localtime_r(&now, &today_tm);
1363
1364         Pos = GetNewHashPos(WCC->disp_cal_items, 0);
1365         while (GetNextHashPos(WCC->disp_cal_items, Pos, &hklen, &HashKey, &vCal)) {
1366                 Cal = (disp_cal*)vCal;
1367                 p = icalcomponent_get_first_property(Cal->cal, ICAL_DTSTART_PROPERTY);
1368                 if (p != NULL) {
1369                         t = icalproperty_get_dtstart(p);
1370                         event_tt = icaltime_as_timet(t);
1371                         if (t.is_date) {
1372                                 all_day_event = 1;
1373                         }
1374                         else {
1375                                 all_day_event = 0;
1376                         }
1377                         fmt_time(timestring, SIZ, event_tt);
1378
1379                         if (all_day_event) {
1380                                 gmtime_r(&event_tt, &event_tm);
1381                         }
1382                         else {
1383                                 localtime_r(&event_tt, &event_tm);
1384                         }
1385
1386                         if ( (event_tm.tm_year == today_tm.tm_year)
1387                                 && (event_tm.tm_mon == today_tm.tm_mon)
1388                                 && (event_tm.tm_mday == today_tm.tm_mday)
1389                         ) {
1390
1391                                 p = icalcomponent_get_first_property(Cal->cal, ICAL_SUMMARY_PROPERTY);
1392                                 if (p == NULL) {
1393                                         p = icalproperty_new_summary(_("Untitled Task"));
1394                                         icalcomponent_add_property(Cal->cal, p);
1395                                 }
1396                                 if (p != NULL)
1397                                 {
1398                                         if (WCC->CurRoom.view == VIEW_TASKS) {
1399                                                 wc_printf("<a href=\"display_edit_task"
1400                                                         "?msgnum=%ld"
1401                                                         "?return_to_summary=1"
1402                                                         "?gotofirst=",
1403                                                         Cal->cal_msgnum
1404                                                 );
1405                                                 escputs(ChrPtr(WCC->CurRoom.name));
1406                                                 wc_printf("\">");
1407                                         }
1408                                         else {
1409                                                 wc_printf("<a href=\"display_edit_event"
1410                                                         "?msgnum=%ld"
1411                                                         "?calview=summary"
1412                                                         "?year=%d"
1413                                                         "?month=%d"
1414                                                         "?day=%d"
1415                                                         "?gotofirst=",
1416                                                         Cal->cal_msgnum,
1417                                                         today_tm.tm_year + 1900,
1418                                                         today_tm.tm_mon + 1,
1419                                                         today_tm.tm_mday
1420                                                 );
1421                                                 escputs(ChrPtr(WCC->CurRoom.name));
1422                                                 wc_printf("\">");
1423                                         }
1424                                         escputs((char *) icalproperty_get_comment(p));
1425                                         if (!all_day_event) {
1426                                                 wc_printf(" (%s)", timestring);
1427                                         }
1428                                         wc_printf("</a><br />\n");
1429                                         ++num_displayed;
1430                                 }
1431                         }
1432                 }
1433         }
1434         DeleteHashPos(&Pos);
1435         DeleteHash(&WC->disp_cal_items);
1436         return(num_displayed);
1437 }
1438
1439 /*
1440  * Parse the URL variables in order to determine the scope and display of a calendar view
1441  */
1442 int calendar_GetParamsGetServerCall(SharedMessageStatus *Stat,
1443                                     void **ViewSpecific,
1444                                     long oper,
1445                                     char *cmd,
1446                                     long len)
1447 {
1448         wcsession *WCC = WC;
1449         calview *c;
1450         time_t now;
1451         struct tm tm;
1452         char cv[32];
1453
1454         int span = 3888000;
1455
1456         c = (calview*) malloc(sizeof(calview));
1457         memset(c, 0, sizeof(calview));
1458         *ViewSpecific = (void*)c;
1459
1460         Stat->load_seen = 1;
1461         strcpy(cmd, "MSGS ALL");
1462         Stat->maxmsgs = 32767;
1463
1464         /* In case no date was specified, go with today */
1465         now = time(NULL);
1466         localtime_r(&now, &tm);
1467         c->year = tm.tm_year + 1900;
1468         c->month = tm.tm_mon + 1;
1469         c->day = tm.tm_mday;
1470
1471         /* Now see if a date was specified */
1472         if (havebstr("year")) c->year = ibstr("year");
1473         if (havebstr("month")) c->month = ibstr("month");
1474         if (havebstr("day")) c->day = ibstr("day");
1475
1476         /* How would you like that cooked? */
1477         if (havebstr("calview")) {
1478                 strcpy(cv, bstr("calview"));
1479         }
1480         else {
1481                 strcpy(cv, "month");
1482         }
1483
1484         /* Display the selected view */
1485         if (!strcasecmp(cv, "day")) {
1486                 c->view = calview_day;
1487         }
1488         else if (!strcasecmp(cv, "week")) {
1489                 c->view = calview_week;
1490         }
1491         else if (!strcasecmp(cv, "summary")) {  /* shouldn't ever happen, but just in case */
1492                 c->view = calview_day;
1493         }
1494         else {
1495                 if (WCC->CurRoom.view == VIEW_CALBRIEF) {
1496                         c->view = calview_brief;
1497                 }
1498                 else {
1499                         c->view = calview_month;
1500                 }
1501         }
1502
1503         /* Now try and set the lower and upper bounds so that we don't
1504          * burn too many cpu cycles parsing data way in the past or future
1505          */
1506
1507         tm.tm_year = c->year - 1900;
1508         tm.tm_mon = c->month - 1;
1509         tm.tm_mday = c->day;
1510         now = mktime(&tm);
1511
1512         if (c->view == calview_month)   span = 3888000;
1513         if (c->view == calview_brief)   span = 3888000;
1514         if (c->view == calview_week)    span = 604800;
1515         if (c->view == calview_day)     span = 86400;
1516         if (c->view == calview_summary) span = 86400;
1517
1518         c->lower_bound = now - span;
1519         c->upper_bound = now + span;
1520         return 200;
1521 }
1522
1523
1524
1525 /*
1526  * Render a calendar view from data previously loaded into memory
1527  */
1528 int calendar_RenderView_or_Tail(SharedMessageStatus *Stat,
1529                                 void **ViewSpecific,
1530                                 long oper)
1531 {
1532         wcsession *WCC = WC;
1533         calview *c = (calview*) *ViewSpecific;
1534
1535         if (c->view == calview_day) {
1536                 calendar_day_view(c->year, c->month, c->day);
1537         }
1538         else if (c->view == calview_week) {
1539                 calendar_week_view(c->year, c->month, c->day);
1540         }
1541         else {
1542                 if (WCC->CurRoom.view == VIEW_CALBRIEF) {
1543                         calendar_brief_month_view(c->year, c->month, c->day);
1544                 }
1545                 else {
1546                         calendar_month_view(c->year, c->month, c->day);
1547                 }
1548         }
1549
1550         /* Free the in-memory list of calendar items */
1551         DeleteHash(&WC->disp_cal_items);
1552         return 0;
1553 }