webcit/calendar_view.c

   1 /*
   2  * Handles the HTML display of calendar items.
   3  *
   4  * Copyright (c) 1996-2012 by the citadel.org team
   5  *
   6  * This program is open source software.  You can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License, version 3.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  */
  14
  15 #include "webcit.h"
  16 #include "webserver.h"
  17 #include "calendar.h"
  18
  19 /* These define how high the hour rows are in the day view */
  20 #define TIMELINE        30
  21 #define EXTRATIMELINE   (TIMELINE / 2)
  22
  23 void embeddable_mini_calendar(int year, int month)
  24 {
  25         struct tm starting_tm;
  26         struct tm tm;
  27         time_t thetime;
  28         int i;
  29         time_t previous_month;
  30         time_t next_month;
  31         time_t colheader_time;
  32         struct tm colheader_tm;
  33         char colheader_label[32];
  34         long weekstart = 0;
  35         char url[256];
  36         char div_id[256];
  37
  38         snprintf(div_id, sizeof div_id, "mini_calendar_%d", rand() );
  39
  40         /* Determine what day to start.  If an impossible value is found, start on Sunday.
  41         */
  42         get_pref_long("weekstart", &weekstart, 17);
  43         if (weekstart > 6) weekstart = 0;
  44
  45         /*
  46         * Now back up to the 1st of the month...
  47         */
  48         memset(&starting_tm, 0, sizeof(struct tm));
  49
  50         starting_tm.tm_year = year - 1900;
  51         starting_tm.tm_mon = month - 1;
  52         starting_tm.tm_mday = 1;
  53         thetime = mktime(&starting_tm);
  54
  55         memcpy(&tm, &starting_tm, sizeof(struct tm));
  56         while (tm.tm_mday != 1) {
  57                 thetime = thetime - (time_t)86400;      /* go back 24 hours */
  58                 localtime_r(&thetime, &tm);
  59         }
  60
  61         /* Determine previous and next months ... for links */
  62         previous_month = thetime - (time_t)864000L;     /* back 10 days */
  63         next_month = thetime + (time_t)(31L * 86400L);  /* ahead 31 days */
  64
  65         /* Now back up until we're on the user's preferred start day */
  66         localtime_r(&thetime, &tm);
  67         while (tm.tm_wday != weekstart) {
  68                 thetime = thetime - (time_t)86400;      /* go back 24 hours */
  69                 localtime_r(&thetime, &tm);
  70         }
  71
  72         wc_printf("<div class=\"mini_calendar\" id=\"%s\">\n", div_id);
  73
  74         /* Previous month link */
  75         localtime_r(&previous_month, &tm);
  76         wc_printf("<a href=\"javascript:minical_change_month(%d,%d);\">&laquo;</a>",
  77                 (int)(tm.tm_year)+1900, tm.tm_mon + 1);
  78
  79         wc_strftime(colheader_label, sizeof colheader_label, "%B", &starting_tm);
  80         wc_printf("&nbsp;&nbsp;"
  81                 "<span class=\"mini_calendar_month_label\">"
  82                 "%s %d"
  83                 "</span>"
  84                 "&nbsp;&nbsp;", colheader_label, year);
  85
  86         /* Next month link */
  87         localtime_r(&next_month, &tm);
  88         wc_printf("<a href=\"javascript:minical_change_month(%d,%d);\">&raquo;</a>",
  89                 (int)(tm.tm_year)+1900, tm.tm_mon + 1);
  90
  91         wc_printf("<table border=\"0\" cellpadding=\"1\" cellspacing=\"1\" class=\"mini_calendar_days\">"
  92                 "<tr>");
  93         colheader_time = thetime;
  94         for (i=0; i<7; ++i) {
  95                 colheader_time = thetime + (i * 86400) ;
  96                 localtime_r(&colheader_time, &colheader_tm);
  97                 wc_strftime(colheader_label, sizeof colheader_label, "%A", &colheader_tm);
  98                 wc_printf("<th>%c</th>", colheader_label[0]);
  99
 100         }
 101         wc_printf("</tr>\n");
 102
 103
 104         /* Now do 35 or 42 days */
 105         for (i = 0; i < 42; ++i) {
 106                 localtime_r(&thetime, &tm);
 107
 108                 if (i < 35) {
 109
 110                         /* Before displaying Sunday, start a new row */
 111                         if ((i % 7) == 0) {
 112                                 wc_printf("<tr>");
 113                         }
 114
 115                         if (tm.tm_mon == month-1) {
 116                                 snprintf(url, sizeof url, "readfwd?calview=day?year=%d?month=%d?day=%d",
 117                                         tm.tm_year+1900, tm.tm_mon+1, tm.tm_mday);
 118                                 wc_printf("<td><a href=\"%s\">%d</a></td>", url, tm.tm_mday);
 119                         }
 120                         else {
 121                                 wc_printf("<td> </td>");
 122                         }
 123
 124                         /* After displaying one week, end the row */
 125                         if ((i % 7) == 6) {
 126                                 wc_printf("</tr>\n");
 127                         }
 128
 129                 }
 130
 131                 thetime += (time_t)86400;               /* ahead 24 hours */
 132         }
 133
 134         wc_printf("</table>"                    /* end of inner table */
 135                 "</div>\n");
 136
 137         StrBufAppendPrintf(WC->trailing_javascript,
 138                 "       function minical_change_month(year, month) {                                    \n"
 139                 "               p = 'year=' + year + '&month=' + month                                  \n"
 140                 "                       + '&r=' + CtdlRandomString();                                   \n"
 141                 "               new Ajax.Updater('%s', 'mini_calendar',                                 \n"
 142                 "                       { method: 'get', parameters: p, evalScripts: true } );          \n"
 143                 "       }                                                                               \n"
 144                 "",
 145                 div_id
 146         );
 147
 148 }
 149
 150 /*
 151  * ajax embedder for the above mini calendar
 152  */
 153 void ajax_mini_calendar(void)
 154 {
 155         embeddable_mini_calendar( ibstr("year"), ibstr("month"));
 156 }
 157
 158
 159 /*
 160  * Display one day of a whole month view of a calendar
 161  */
 162 void calendar_month_view_display_events(int year, int month, int day)
 163 {
 164         long hklen;
 165         const char *HashKey;
 166         void *vCal;
 167         HashPos *Pos;
 168         disp_cal *Cal;
 169         icalproperty *p = NULL;
 170         icalproperty *q = NULL;
 171         struct icaltimetype t;
 172         struct icaltimetype end_t;
 173         struct icaltimetype today_start_t;
 174         struct icaltimetype today_end_t;
 175         struct icaltimetype today_t;
 176         struct tm starting_tm;
 177         struct tm ending_tm;
 178         int all_day_event = 0;
 179         int show_event = 0;
 180         char buf[256];
 181         wcsession *WCC = WC;
 182         time_t tt;
 183
 184         if (GetCount(WCC->disp_cal_items) == 0) {
 185                 wc_printf("<br>\n");
 186                 return;
 187         }
 188
 189         /*
 190          * Create an imaginary event which spans the 24 hours of today.  Any events which
 191          * overlap with this one take place at least partially in this day.  We have to
 192          * convert it from a struct tm in order to make it UTC.
 193          */
 194         memset(&starting_tm, 0, sizeof(struct tm));
 195         starting_tm.tm_year = year - 1900;
 196         starting_tm.tm_mon = month - 1;
 197         starting_tm.tm_mday = day;
 198         starting_tm.tm_hour = 0;
 199         starting_tm.tm_min = 0;
 200         today_start_t = icaltime_from_timet_with_zone(mktime(&starting_tm), 0, icaltimezone_get_utc_timezone());
 201         today_start_t.is_utc = 1;
 202
 203         memset(&ending_tm, 0, sizeof(struct tm));
 204         ending_tm.tm_year = year - 1900;
 205         ending_tm.tm_mon = month - 1;
 206         ending_tm.tm_mday = day;
 207         ending_tm.tm_hour = 23;
 208         ending_tm.tm_min = 59;
 209         today_end_t = icaltime_from_timet_with_zone(mktime(&ending_tm), 0, icaltimezone_get_utc_timezone());
 210         today_end_t.is_utc = 1;
 211
 212         /*
 213          * Create another one without caring about the timezone for all day events.
 214          */
 215         today_t = icaltime_null_date();
 216         today_t.year = year;
 217         today_t.month = month;
 218         today_t.day = day;
 219
 220         /*
 221          * Now loop through our list of events to see which ones occur today.
 222          */
 223         Pos = GetNewHashPos(WCC->disp_cal_items, 0);
 224         while (GetNextHashPos(WCC->disp_cal_items, Pos, &hklen, &HashKey, &vCal)) {
 225                 Cal = (disp_cal*)vCal;
 226                 all_day_event = 0;
 227                 q = icalcomponent_get_first_property(Cal->cal, ICAL_DTSTART_PROPERTY);
 228                 if (q != NULL) {
 229                         t = icalproperty_get_dtstart(q);
 230                 }
 231                 else {
 232                         memset(&t, 0, sizeof t);
 233                 }
 234                 q = icalcomponent_get_first_property(Cal->cal, ICAL_DTEND_PROPERTY);
 235                 if (q != NULL) {
 236                         end_t = icalproperty_get_dtend(q);
 237                 }
 238                 else {
 239                         memset(&end_t, 0, sizeof end_t);
 240                 }
 241                 if (t.is_date) all_day_event = 1;
 242
 243                 if (all_day_event)
 244                 {
 245                         show_event = ical_ctdl_is_overlap(t, end_t, today_t, icaltime_null_time());
 246                 }
 247                 else
 248                 {
 249                         show_event = ical_ctdl_is_overlap(t, end_t, today_start_t, today_end_t);
 250                 }
 251
 252                 /*
 253                  * If we determined that this event occurs today, then display it.
 254                  */
 255                 if (show_event) {
 256
 257                         /* time_t logtt = icaltime_as_timet(t);
 258                         syslog(LOG_DEBUG, "Match on %04d-%02d-%02d for event %x%s on %s",
 259                                 year, month, day,
 260                                 (int)Cal, ((all_day_event) ? " (all day)" : ""),
 261                                 ctime(&logtt)
 262                         ); */
 263
 264                         p = icalcomponent_get_first_property(Cal->cal, ICAL_SUMMARY_PROPERTY);
 265                         if (p == NULL) {
 266                                 p = icalproperty_new_summary(_("Untitled Event"));
 267                                 icalcomponent_add_property(Cal->cal, p);
 268                         }
 269                         if (p != NULL) {
 270
 271                                 if (all_day_event) {
 272                                         wc_printf("<table border=\"0\" cellpadding=\"2\"><TR>"
 273                                                 "<td bgcolor=\"#CCCCDD\">"
 274                                                 );
 275                                 }
 276
 277
 278                                 wc_printf("<font size=\"-1\">"
 279                                         "<a class=\"event%s\" href=\"display_edit_event?"
 280                                         "msgnum=%ld?calview=month?year=%d?month=%d?day=%d\">"
 281                                         ,
 282                                         (Cal->unread)?"_unread":"_read",
 283                                         Cal->cal_msgnum,
 284                                         year, month, day
 285                                 );
 286
 287                                 escputs((char *) icalproperty_get_comment(p));
 288
 289                                 wc_printf("<span class=\"tooltip\"><span class=\"btttop\"></span><span class=\"bttmiddle\">");
 290
 291                                 wc_printf("<i>%s: %s</i><br>", _("From"), Cal->from);
 292                                 wc_printf("<i>%s</i> ",          _("Summary:"));
 293                                 escputs((char *)icalproperty_get_comment(p));
 294                                 wc_printf("<br>");
 295
 296                                 q = icalcomponent_get_first_property(
 297                                         Cal->cal,
 298                                         ICAL_LOCATION_PROPERTY);
 299                                 if (q) {
 300                                         wc_printf("<i>%s</i> ", _("Location:"));
 301                                         escputs((char *)icalproperty_get_comment(q));
 302                                         wc_printf("<br>");
 303                                 }
 304
 305                                 /*
 306                                  * Only show start/end times if we're actually looking at the VEVENT
 307                                  * component.  Otherwise it shows bogus dates for e.g. timezones
 308                                  */
 309                                 if (icalcomponent_isa(Cal->cal) == ICAL_VEVENT_COMPONENT) {
 310
 311                                         q = icalcomponent_get_first_property(Cal->cal, ICAL_DTSTART_PROPERTY);
 312                                         if (q != NULL) {
 313                                                 int no_end = 0;
 314
 315                                                 t = icalproperty_get_dtstart(q);
 316                                                 q = icalcomponent_get_first_property(Cal->cal, ICAL_DTEND_PROPERTY);
 317                                                 if (q != NULL) {
 318                                                         end_t = icalproperty_get_dtend(q);
 319                                                 }
 320                                                 else {
 321                                                         /*
 322                                                          * events with starting date/time equal
 323                                                          * ending date/time might get only
 324                                                          * DTSTART but no DTEND
 325                                                          */
 326                                                         no_end = 1;
 327                                                 }
 328
 329                                                 if (t.is_date) {
 330                                                         /* all day event */
 331                                                         struct tm d_tm;
 332
 333                                                         if (!no_end) {
 334                                                                 /* end given, have to adjust it */
 335                                                                 icaltime_adjust(&end_t, -1, 0, 0, 0);
 336                                                         }
 337                                                         memset(&d_tm, 0, sizeof d_tm);
 338                                                         d_tm.tm_year = t.year - 1900;
 339                                                         d_tm.tm_mon = t.month - 1;
 340                                                         d_tm.tm_mday = t.day;
 341                                                         wc_strftime(buf, sizeof buf, "%x", &d_tm);
 342
 343                                                         if (no_end || !icaltime_compare(t, end_t)) {
 344                                                                 wc_printf("<i>%s</i> %s<br>",
 345                                                                         _("Date:"), buf);
 346                                                         }
 347                                                         else {
 348                                                                 wc_printf("<i>%s</i> %s<br>",
 349                                                                         _("Starting date:"), buf);
 350                                                                 d_tm.tm_year = end_t.year - 1900;
 351                                                                 d_tm.tm_mon = end_t.month - 1;
 352                                                                 d_tm.tm_mday = end_t.day;
 353                                                                 wc_strftime(buf, sizeof buf, "%x", &d_tm);
 354                                                                 wc_printf("<i>%s</i> %s<br>",
 355                                                                         _("Ending date:"), buf);
 356                                                         }
 357                                                 }
 358                                                 else {
 359                                                         tt = icaltime_as_timet(t);
 360                                                         webcit_fmt_date(buf, 256, tt, DATEFMT_BRIEF);
 361                                                         if (no_end || !icaltime_compare(t, end_t)) {
 362                                                                 wc_printf("<i>%s</i> %s<br>",
 363                                                                         _("Date/time:"), buf);
 364                                                         }
 365                                                         else {
 366                                                                 wc_printf("<i>%s</i> %s<br>",
 367                                                                         _("Starting date/time:"), buf);
 368                                                                 tt = icaltime_as_timet(end_t);
 369                                                                 webcit_fmt_date(buf, 256, tt, DATEFMT_BRIEF);
 370                                                                 wc_printf("<i>%s</i> %s<br>", _("Ending date/time:"), buf);
 371                                                         }
 372
 373                                                 }
 374                                         }
 375
 376                                 }
 377
 378                                 q = icalcomponent_get_first_property(Cal->cal, ICAL_DESCRIPTION_PROPERTY);
 379                                 if (q) {
 380                                         wc_printf("<i>%s</i> ", _("Notes:"));
 381                                         escputs((char *)icalproperty_get_comment(q));
 382                                         wc_printf("<br>");
 383                                 }
 384
 385                                 wc_printf("</span><span class=\"bttbottom\"></span></span>");
 386                                 wc_printf("</a></font><br>\n");
 387
 388                                 if (all_day_event) {
 389                                         wc_printf("</td></tr></table>");
 390                                 }
 391
 392                         }
 393
 394                 }
 395
 396
 397         }
 398         DeleteHashPos(&Pos);
 399 }
 400
 401
 402 /*
 403  * Display one day of a whole month view of a calendar
 404  */
 405 void calendar_month_view_brief_events(time_t thetime, const char *daycolor) {
 406         long hklen;
 407         const char *HashKey;
 408         void *vCal;
 409         HashPos *Pos;
 410         time_t event_tt;
 411         time_t event_tts;
 412         time_t event_tte;
 413         wcsession *WCC = WC;
 414         struct tm event_tms;
 415         struct tm event_tme;
 416         struct tm today_tm;
 417         icalproperty *p;
 418         icalproperty *e;
 419         struct icaltimetype t;
 420         disp_cal *Cal;
 421         int all_day_event = 0;
 422         char *timeformat;
 423         int time_format;
 424
 425         time_format = get_time_format_cached ();
 426
 427         if (time_format == WC_TIMEFORMAT_24) timeformat="%k:%M";
 428         else timeformat="%I:%M %p";
 429
 430         localtime_r(&thetime, &today_tm);
 431
 432         Pos = GetNewHashPos(WCC->disp_cal_items, 0);
 433         while (GetNextHashPos(WCC->disp_cal_items, Pos, &hklen, &HashKey, &vCal)) {
 434                 Cal = (disp_cal*)vCal;
 435                 p = icalcomponent_get_first_property(Cal->cal, ICAL_DTSTART_PROPERTY);
 436                 if (p != NULL) {
 437                         t = icalproperty_get_dtstart(p);
 438                         event_tt = icaltime_as_timet(t);
 439                         event_tts=event_tt;
 440                         if (t.is_date) all_day_event = 1;
 441                         else all_day_event = 0;
 442
 443                         if (all_day_event) {
 444                                 gmtime_r(&event_tts, &event_tms);
 445                         }
 446                         else {
 447                                 localtime_r(&event_tts, &event_tms);
 448                         }
 449                         /* \todo epoch &! daymask */
 450                         if ((event_tms.tm_year == today_tm.tm_year)
 451                                 && (event_tms.tm_mon == today_tm.tm_mon)
 452                         && (event_tms.tm_mday == today_tm.tm_mday)) {
 453
 454
 455                         char sbuf[255];
 456                         char ebuf[255];
 457
 458                         p = icalcomponent_get_first_property(
 459                                 Cal->cal,
 460                                 ICAL_SUMMARY_PROPERTY);
 461                         if (p == NULL) {
 462                                 p = icalproperty_new_summary(_("Untitled Event"));
 463                                 icalcomponent_add_property(Cal->cal, p);
 464                         }
 465                         e = icalcomponent_get_first_property(
 466                                 Cal->cal,
 467                                 ICAL_DTEND_PROPERTY);
 468                         if ((p != NULL) && (e != NULL)) {
 469                                 time_t difftime;
 470                                 int hours, minutes;
 471                                 t = icalproperty_get_dtend(e);
 472                                 event_tte = icaltime_as_timet(t);
 473                                 localtime_r(&event_tte, &event_tme);
 474                                 difftime=(event_tte-event_tts)/60;
 475                                 hours=(int)(difftime / 60);
 476                                 minutes=difftime % 60;
 477                                 wc_printf("<tr><td bgcolor='%s'>%i:%2i</td><td bgcolor='%s'>"
 478                                         "<font size=\"-1\">"
 479                                         "<a class=\"event%s\" href=\"display_edit_event?msgnum=%ld?calview=calbrief?year=%s?month=%s?day=%s\">",
 480                                         daycolor,
 481                                         hours, minutes,
 482                                         (Cal->unread)?"_unread":"_read",
 483                                         daycolor,
 484                                         Cal->cal_msgnum,
 485                                         bstr("year"),
 486                                         bstr("month"),
 487                                         bstr("day")
 488                                         );
 489
 490                                 escputs((char *)
 491                                         icalproperty_get_comment(p));
 492                                 /* \todo: allso ammitime format */
 493                                 wc_strftime(&sbuf[0], sizeof(sbuf), timeformat, &event_tms);
 494                                 wc_strftime(&ebuf[0], sizeof(sbuf), timeformat, &event_tme);
 495
 496                                 wc_printf("</a></font></td>"
 497                                         "<td bgcolor='%s'>%s</td><td bgcolor='%s'>%s</td></tr>",
 498                                         daycolor,
 499                                         sbuf,
 500                                         daycolor,
 501                                         ebuf);
 502                                 }
 503
 504                         }
 505
 506
 507                 }
 508         }
 509         DeleteHashPos(&Pos);
 510 }
 511
 512
 513 /*
 514  * view one month. pretty view
 515  */
 516 void calendar_month_view(int year, int month, int day) {
 517         struct tm starting_tm;
 518         struct tm tm;
 519         struct tm today_tm;
 520         time_t thetime;
 521         int i;
 522         time_t previous_month;
 523         time_t next_month;
 524         time_t colheader_time;
 525         time_t today_timet;
 526         struct tm colheader_tm;
 527         char colheader_label[32];
 528         long weekstart = 0;
 529
 530         /*
 531          * Make sure we know which day is today.
 532          */
 533         today_timet = time(NULL);
 534         localtime_r(&today_timet, &today_tm);
 535
 536         /*
 537          * Determine what day to start.  If an impossible value is found, start on Sunday.
 538          */
 539         get_pref_long("weekstart", &weekstart, 17);
 540         if (weekstart > 6) weekstart = 0;
 541
 542         /*
 543          * Now back up to the 1st of the month...
 544          */
 545         memset(&starting_tm, 0, sizeof(struct tm));
 546
 547         starting_tm.tm_year = year - 1900;
 548         starting_tm.tm_mon = month - 1;
 549         starting_tm.tm_mday = day;
 550         thetime = mktime(&starting_tm);
 551
 552         memcpy(&tm, &starting_tm, sizeof(struct tm));
 553         while (tm.tm_mday != 1) {
 554                 thetime = thetime - (time_t)86400;      /* go back 24 hours */
 555                 localtime_r(&thetime, &tm);
 556         }
 557
 558         /* Determine previous and next months ... for links */
 559         previous_month = thetime - (time_t)864000L;     /* back 10 days */
 560         next_month = thetime + (time_t)(31L * 86400L);  /* ahead 31 days */
 561
 562         /* Now back up until we're on the user's preferred start day */
 563         localtime_r(&thetime, &tm);
 564         while (tm.tm_wday != weekstart) {
 565                 thetime = thetime - (time_t)86400;      /* go back 24 hours */
 566                 localtime_r(&thetime, &tm);
 567         }
 568
 569         /* Outer table (to get the background color) */
 570         wc_printf("<table class=\"calendar\"> \n <tr><td>");
 571
 572         wc_printf("<table width=\"100%%\" border=\"0\" cellpadding=\"0\" cellspacing=\"0\"><tr>\n");
 573
 574         wc_printf("<td align=\"center\">");
 575
 576         localtime_r(&previous_month, &tm);
 577         wc_printf("<a href=\"readfwd?calview=month?year=%d?month=%d?day=1\">",
 578                 (int)(tm.tm_year)+1900, tm.tm_mon + 1);
 579         wc_printf("<img alt=\"%s\" align=\"middle\" src=\"static/webcit_icons/essen/32x32/back.png\" border=\"0\"></a>\n", _("previous"));
 580
 581         wc_strftime(colheader_label, sizeof colheader_label, "%B", &starting_tm);
 582         wc_printf("&nbsp;&nbsp;"
 583                 "<font size=\"+1\" color=\"#FFFFFF\">"
 584                 "%s %d"
 585                 "</font>"
 586                 "&nbsp;&nbsp;", colheader_label, year);
 587
 588         localtime_r(&next_month, &tm);
 589         wc_printf("<a href=\"readfwd?calview=month?year=%d?month=%d?day=1\">",
 590                 (int)(tm.tm_year)+1900, tm.tm_mon + 1);
 591         wc_printf("<img alt=\"%s\" align=\"middle\" src=\"static/webcit_icons/essen/32x32/forward.png\" border=\"0\"></A>\n", _("next"));
 592
 593         wc_printf("</td></tr></table>\n");
 594
 595         /* Inner table (the real one) */
 596         wc_printf("<table width=\"100%%\" border=\"0\" cellpadding=\"1\" cellspacing=\"1\" "
 597                 "bgcolor='#204B78' id=\"inner_month\"><tr>");
 598         wc_printf("<th align=\"center\" width=\"2%%\"></th>");
 599         colheader_time = thetime;
 600         for (i=0; i<7; ++i) {
 601                 colheader_time = thetime + (i * 86400) ;
 602                 localtime_r(&colheader_time, &colheader_tm);
 603                 wc_strftime(colheader_label, sizeof colheader_label, "%A", &colheader_tm);
 604                 wc_printf("<th align=\"center\" width=\"14%%\">"
 605                         "<font color=\"#FFFFFF\">%s</font></th>", colheader_label);
 606
 607         }
 608         wc_printf("</tr>\n");
 609
 610
 611         /* Now do 35 or 42 days */
 612         localtime_r(&thetime, &tm);
 613         for (i = 0; i<42; ++i) {
 614
 615                 /* Before displaying the first day of the week, start a new row */
 616                 if ((i % 7) == 0) {
 617                         wc_printf("<tr><td class=\"week_of_year\">");
 618                         wc_strftime(colheader_label, sizeof colheader_label, "%V", &tm);
 619                         wc_printf("%s ", colheader_label);
 620                 }
 621
 622                 wc_printf("<td class=\"cal%s\"><div class=\"day\">",
 623                         ((tm.tm_mon != month-1) ? "out" :
 624                                 (((tm.tm_year == today_tm.tm_year) && (tm.tm_mon == today_tm.tm_mon) && (tm.tm_mday == today_tm.tm_mday)) ? "today" :
 625                                 ((tm.tm_wday==0 || tm.tm_wday==6) ? "weekend" :
 626                                         "day")))
 627                         );
 628                 if ((i==0) || (tm.tm_mday == 1)) {
 629                         wc_strftime(colheader_label, sizeof colheader_label, "%B", &tm);
 630                         wc_printf("%s ", colheader_label);
 631                 }
 632                 wc_printf("<a href=\"readfwd?calview=day?year=%d?month=%d?day=%d\">"
 633                         "%d</a></div>",
 634                         tm.tm_year + 1900,
 635                         tm.tm_mon + 1,
 636                         tm.tm_mday,
 637                         tm.tm_mday);
 638
 639                 /* put the data here, stupid */
 640                 calendar_month_view_display_events(
 641                         tm.tm_year + 1900,
 642                         tm.tm_mon + 1,
 643                         tm.tm_mday
 644                         );
 645
 646                 wc_printf("</td>");
 647
 648                 /* After displaying the last day of the week, end the row */
 649                 if ((i % 7) == 6) {
 650                         wc_printf("</tr>\n");
 651                 }
 652
 653                 thetime += (time_t)86400;               /* ahead 24 hours */
 654                 localtime_r(&thetime, &tm);
 655
 656                 if ( ((i % 7) == 6) && (tm.tm_mon != month-1) && (tm.tm_mday < 15) ) {
 657                         i = 100;        /* break out of the loop */
 658                 }
 659         }
 660
 661         wc_printf("</table>"                    /* end of inner table */
 662                 "</td></tr></table>\n"          /* end of outer table */
 663         );
 664 }
 665
 666 /*
 667  * view one month. brief view
 668  */
 669 void calendar_brief_month_view(int year, int month, int day) {
 670         struct tm starting_tm;
 671         struct tm tm;
 672         time_t thetime;
 673         int i;
 674         time_t previous_month;
 675         time_t next_month;
 676         char month_label[32];
 677
 678         /* Determine what day to start.
 679          * First, back up to the 1st of the month...
 680          */
 681         memset(&starting_tm, 0, sizeof(struct tm));
 682         starting_tm.tm_year = year - 1900;
 683         starting_tm.tm_mon = month - 1;
 684         starting_tm.tm_mday = day;
 685         thetime = mktime(&starting_tm);
 686
 687         memcpy(&tm, &starting_tm, sizeof(struct tm));
 688         while (tm.tm_mday != 1) {
 689                 thetime = thetime - (time_t)86400;      /* go back 24 hours */
 690                 localtime_r(&thetime, &tm);
 691         }
 692
 693         /* Determine previous and next months ... for links */
 694         previous_month = thetime - (time_t)864000L;     /* back 10 days */
 695         next_month = thetime + (time_t)(31L * 86400L);  /* ahead 31 days */
 696
 697         /* Now back up until we're on a Sunday */
 698         localtime_r(&thetime, &tm);
 699         while (tm.tm_wday != 0) {
 700                 thetime = thetime - (time_t)86400;      /* go back 24 hours */
 701                 localtime_r(&thetime, &tm);
 702         }
 703
 704         /* Outer table (to get the background color) */
 705         wc_printf("<table width=\"100%%\" border=\"0\" cellpadding=\"0\" cellspacing=\"0\" "
 706                 "bgcolor=#204B78><tr><td>\n");
 707
 708         wc_printf("<table width=\"100%%\" border=\"0\" cellpadding=\"0\" cellspacing=\"0\"><tr>\n");
 709
 710         wc_printf("<td align=\"center\">");
 711
 712         localtime_r(&previous_month, &tm);
 713         wc_printf("<a href=\"readfwd?calview=month?year=%d?month=%d?day=1\">",
 714                 (int)(tm.tm_year)+1900, tm.tm_mon + 1);
 715         wc_printf("<img alt=\"%s\" align=\"middle\" src=\"static/webcit_icons/essen/32x32/back.png\" border=\"0\"></a>\n", _("previous"));
 716
 717         wc_strftime(month_label, sizeof month_label, "%B", &tm);
 718         wc_printf("&nbsp;&nbsp;"
 719                 "<font size=\"+1\" color=\"#FFFFFF\">"
 720                 "%s %d"
 721                 "</font>"
 722                 "&nbsp;&nbsp;", month_label, year);
 723
 724         localtime_r(&next_month, &tm);
 725         wc_printf("<a href=\"readfwd?calview=month?year=%d?month=%d?day=1\">",
 726                 (int)(tm.tm_year)+1900, tm.tm_mon + 1);
 727         wc_printf("<img alt=\"%s\" align=\"middle\" src=\"static/webcit_icons/essen/32x32/forward.png\" border=\"0\"></a>\n", _("next"));
 728
 729         wc_printf("</td></tr></table>\n");
 730
 731         /* Inner table (the real one) */
 732         wc_printf("<table width=\"100%%\" border=\"0\" cellpadding=\"1\" cellspacing=\"1\" "
 733                 "bgcolor=#EEEECC><TR>");
 734         wc_printf("</tr>\n");
 735         wc_printf("<tr><td colspan=\"100%%\">\n");
 736
 737         /* Now do 35 days */
 738         for (i = 0; i < 35; ++i) {
 739                 char weeknumber[255];
 740                 char weekday_name[32];
 741                 char *daycolor;
 742                 localtime_r(&thetime, &tm);
 743
 744
 745                 /* Before displaying Sunday, start a new CELL */
 746                 if ((i % 7) == 0) {
 747                         wc_strftime(&weeknumber[0], sizeof(weeknumber), "%U", &tm);
 748                         wc_printf("<table border='0' bgcolor=\"#EEEECC\" width='100%%'> <tr><th colspan='4'>%s %s</th></tr>"
 749                                 "   <tr><td>%s</td><td width='70%%'>%s</td><td>%s</td><td>%s</td></tr>\n",
 750                                 _("Week"),
 751                                 weeknumber,
 752                                 _("Hours"),
 753                                 _("Subject"),
 754                                 _("Start"),
 755                                 _("End")
 756                                 );
 757                 }
 758
 759                 daycolor=((tm.tm_mon != month-1) ? "DDDDDD" :
 760                         ((tm.tm_wday==0 || tm.tm_wday==6) ? "EEEECC" :
 761                                 "FFFFFF"));
 762
 763                 /* Day Header */
 764                 wc_strftime(weekday_name, sizeof weekday_name, "%A", &tm);
 765                 wc_printf("<tr><td bgcolor='%s' colspan='1' align='left'> %s,%i."
 766                         "</td><td bgcolor='%s' colspan='3'><hr></td></tr>\n",
 767                         daycolor,
 768                         weekday_name,tm.tm_mday,
 769                         daycolor);
 770
 771                 /* put the data of one day  here, stupid */
 772                 calendar_month_view_brief_events(thetime, daycolor);
 773
 774
 775                 /* After displaying Saturday, end the row */
 776                 if ((i % 7) == 6) {
 777                         wc_printf("</td></tr></table>\n");
 778                 }
 779
 780                 thetime += (time_t)86400;               /* ahead 24 hours */
 781         }
 782
 783         wc_printf("</table>"                    /* end of inner table */
 784                 "</td></tr></table>\n"          /* end of outer table */
 785         );
 786 }
 787
 788 /*
 789  * Calendar week view -- not implemented yet, this is a stub function
 790  */
 791 void calendar_week_view(int year, int month, int day) {
 792         wc_printf("<center><i>week view FIXME</i></center><br>\n");
 793 }
 794
 795
 796 /*
 797  * display one day
 798  * Display events for a particular hour of a particular day.
 799  * (Specify hour < 0 to show "all day" events)
 800  *
 801  * dstart and dend indicate which hours our "daytime" begins and end
 802  */
 803 void calendar_day_view_display_events(time_t thetime,
 804         int year,
 805         int month,
 806         int day,
 807         int notime_events,
 808         int dstart,
 809         int dend)
 810 {
 811         long hklen;
 812         const char *HashKey;
 813         void *vCal;
 814         HashPos *Pos;
 815         icalproperty *p = NULL;
 816         icalproperty *q = NULL;
 817         time_t event_tt;
 818         time_t event_tte;
 819         struct tm event_te;
 820         struct tm event_tm;
 821         int show_event = 0;
 822         int all_day_event = 0;
 823         int ongoing_event = 0;
 824         wcsession *WCC = WC;
 825         disp_cal *Cal;
 826         struct icaltimetype t;
 827         struct icaltimetype end_t;
 828         struct icaltimetype today_start_t;
 829         struct icaltimetype today_end_t;
 830         struct icaltimetype today_t;
 831         struct tm starting_tm;
 832         struct tm ending_tm;
 833         int top = 0;
 834         int bottom = 0;
 835         int gap = 1;
 836         int startmin = 0;
 837         int diffmin = 0;
 838         int endmin = 0;
 839
 840         char buf[256];
 841
 842         if (GetCount(WCC->disp_cal_items) == 0) {
 843                 /* nothing to display */
 844                 return;
 845         }
 846
 847         /* Create an imaginary event which spans the current day.  Any events which
 848          * overlap with this one take place at least partially in this day.
 849          */
 850         memset(&starting_tm, 0, sizeof(struct tm));
 851         starting_tm.tm_year = year - 1900;
 852         starting_tm.tm_mon = month - 1;
 853         starting_tm.tm_mday = day;
 854         starting_tm.tm_hour = 0;
 855         starting_tm.tm_min = 0;
 856         today_start_t = icaltime_from_timet_with_zone(mktime(&starting_tm), 0, icaltimezone_get_utc_timezone());
 857         today_start_t.is_utc = 1;
 858
 859         memset(&ending_tm, 0, sizeof(struct tm));
 860         ending_tm.tm_year = year - 1900;
 861         ending_tm.tm_mon = month - 1;
 862         ending_tm.tm_mday = day;
 863         ending_tm.tm_hour = 23;
 864         ending_tm.tm_min = 59;
 865         today_end_t = icaltime_from_timet_with_zone(mktime(&ending_tm), 0, icaltimezone_get_utc_timezone());
 866         today_end_t.is_utc = 1;
 867
 868         /*
 869          * Create another one without caring about the timezone for all day events.
 870          */
 871         today_t = icaltime_null_date();
 872         today_t.year = year;
 873         today_t.month = month;
 874         today_t.day = day;
 875
 876         /* Now loop through our list of events to see which ones occur today.
 877          */
 878         Pos = GetNewHashPos(WCC->disp_cal_items, 0);
 879         while (GetNextHashPos(WCC->disp_cal_items, Pos, &hklen, &HashKey, &vCal)) {
 880                 Cal = (disp_cal*)vCal;
 881
 882                 all_day_event = 0;
 883                 ongoing_event=0;
 884
 885                 q = icalcomponent_get_first_property(Cal->cal, ICAL_DTSTART_PROPERTY);
 886                 if (q != NULL) {
 887                         t = icalproperty_get_dtstart(q);
 888                         event_tt = icaltime_as_timet(t);
 889                         localtime_r(&event_tt, &event_te);
 890                 }
 891                 else {
 892                         memset(&t, 0, sizeof t);
 893                 }
 894
 895                 if (t.is_date) all_day_event = 1;
 896
 897                 q = icalcomponent_get_first_property(Cal->cal, ICAL_DTEND_PROPERTY);
 898                 if (q != NULL) {
 899                         end_t = icalproperty_get_dtend(q);
 900                 }
 901                 else {
 902                         /* no end given means end = start */
 903                         memcpy(&end_t, &t, sizeof(struct icaltimetype));
 904                 }
 905
 906                 if (all_day_event)
 907                 {
 908                         show_event = ical_ctdl_is_overlap(t, end_t, today_t, icaltime_null_time());
 909                         if (icaltime_compare(t, end_t)) {
 910                                 /*
 911                                  * the end date is non-inclusive so adjust it by one
 912                                  * day because our test is inclusive, note that a day is
 913                                  * not to much because we are talking about all day
 914                                  * events
 915                                  */
 916                                 icaltime_adjust(&end_t, -1, 0, 0, 0);
 917                         }
 918                 }
 919                 else
 920                 {
 921                         show_event = ical_ctdl_is_overlap(t, end_t, today_start_t, today_end_t);
 922                 }
 923
 924                 event_tte = icaltime_as_timet(end_t);
 925                 localtime_r(&event_tte, &event_tm);
 926
 927                 /* If we determined that this event occurs today, then display it.
 928                  */
 929                 p = icalcomponent_get_first_property(Cal->cal,ICAL_SUMMARY_PROPERTY);
 930                 if (p == NULL) {
 931                         p = icalproperty_new_summary(_("Untitled Event"));
 932                         icalcomponent_add_property(Cal->cal, p);
 933                 }
 934
 935                 if ((show_event) && (p != NULL)) {
 936
 937                         if ((event_te.tm_mday != day) || (event_tm.tm_mday != day)) ongoing_event = 1;
 938
 939                         if (all_day_event && notime_events)
 940                         {
 941                                 wc_printf("<li class=\"event_framed%s\"> "
 942                                         "<a href=\"display_edit_event?"
 943                                         "msgnum=%ld?calview=day?year=%d?month=%d?day=%d\" "
 944                                         " class=\"event_title\">"
 945                                         ,
 946                                         (Cal->unread)?"_unread":"_read",
 947                                         Cal->cal_msgnum, year, month, day
 948                                 );
 949                                 escputs((char *) icalproperty_get_comment(p));
 950                                 wc_printf("<span class=\"tooltip\"><span class=\"btttop\"></span><span class=\"bttmiddle\">");
 951                                 wc_printf("<i>%s</i><br>",      _("All day event"));
 952                                 wc_printf("<i>%s: %s</i><br>",  _("From"), Cal->from);
 953                                 wc_printf("<i>%s</i> ",           _("Summary:"));
 954                                 escputs((char *) icalproperty_get_comment(p));
 955                                 wc_printf("<br>");
 956                                 q = icalcomponent_get_first_property(Cal->cal,ICAL_LOCATION_PROPERTY);
 957                                 if (q) {
 958                                         wc_printf("<i>%s</i> ", _("Location:"));
 959                                         escputs((char *)icalproperty_get_comment(q));
 960                                         wc_printf("<br>");
 961                                 }
 962                                 if (!icaltime_compare(t, end_t)) { /* one day only */
 963                                         webcit_fmt_date(buf, 256, event_tt, DATEFMT_LOCALEDATE);
 964                                         wc_printf("<i>%s</i> %s<br>", _("Date:"), buf);
 965                                 }
 966                                 else {
 967                                         webcit_fmt_date(buf, 256, event_tt, DATEFMT_LOCALEDATE);
 968                                         wc_printf("<i>%s</i> %s<br>", _("Starting date:"), buf);
 969                                         webcit_fmt_date(buf, 256, event_tte, DATEFMT_LOCALEDATE);
 970                                         wc_printf("<i>%s</i> %s<br>", _("Ending date:"), buf);
 971                                 }
 972                                 q = icalcomponent_get_first_property(Cal->cal,ICAL_DESCRIPTION_PROPERTY);
 973                                 if (q) {
 974                                         wc_printf("<i>%s</i> ", _("Notes:"));
 975                                         escputs((char *)icalproperty_get_comment(q));
 976                                         wc_printf("<br>");
 977                                 }
 978                                 wc_printf("</span><span class=\"bttbottom\"></span></span>");
 979                                 wc_printf("</a> <span>(");
 980                                 wc_printf(_("All day event"));
 981                                 wc_printf(")</span></li>\n");
 982                         }
 983                         else if (ongoing_event && notime_events)
 984                         {
 985                                 wc_printf("<li class=\"event_framed%s\"> "
 986                                         "<a href=\"display_edit_event?"
 987                                         "msgnum=%ld&calview=day?year=%d?month=%d?day=%d\" "
 988                                         " class=\"event_title\">"
 989                                         ,
 990                                         (Cal->unread)?"_unread":"_read",
 991                                         Cal->cal_msgnum, year, month, day
 992                                 );
 993                                 escputs((char *) icalproperty_get_comment(p));
 994                                 wc_printf("<span class=\"tooltip\"><span class=\"btttop\"></span><span class=\"bttmiddle\">");
 995                                 wc_printf("<i>%s</i><br>",     _("Ongoing event"));
 996                                 wc_printf("<i>%s: %s</i><br>", _("From"), Cal->from);
 997                                 wc_printf("<i>%s</i> ",          _("Summary:"));
 998                                 escputs((char *) icalproperty_get_comment(p));
 999                                 wc_printf("<br>");
1000                                 q = icalcomponent_get_first_property(Cal->cal,ICAL_LOCATION_PROPERTY);
1001                                 if (q) {
1002                                         wc_printf("<i>%s</i> ", _("Location:"));
1003                                         escputs((char *)icalproperty_get_comment(q));
1004                                         wc_printf("<br>");
1005                                                                 }
1006                                 webcit_fmt_date(buf, 256, event_tt, DATEFMT_BRIEF);
1007                                 wc_printf("<i>%s</i> %s<br>", _("Starting date/time:"), buf);
1008                                 webcit_fmt_date(buf, 256, event_tte, DATEFMT_BRIEF);
1009                                 wc_printf("<i>%s</i> %s<br>", _("Ending date/time:"), buf);
1010                                 q = icalcomponent_get_first_property(Cal->cal,ICAL_DESCRIPTION_PROPERTY);
1011                                 if (q) {
1012                                         wc_printf("<i>%s</i> ", _("Notes:"));
1013                                         escputs((char *)icalproperty_get_comment(q));
1014                                         wc_printf("<br>");
1015                                 }
1016                                 wc_printf("</span><span class=\"bttbottom\"></span></span>");
1017                                 wc_printf("</a> <span>(");
1018                                 wc_printf(_("Ongoing event"));
1019                                 wc_printf(")</span></li>\n");
1020                         }
1021                         else if (!all_day_event && !notime_events)
1022                         {
1023                                 gap++;
1024
1025                                 if (event_te.tm_mday != day) event_te.tm_hour = 0;
1026                                 if (event_tm.tm_mday != day) event_tm.tm_hour = 24;
1027
1028                                 /* Calculate the location of the top of the box */
1029                                 if (event_te.tm_hour < dstart) {
1030                                         startmin = diffmin = event_te.tm_min / 6;
1031                                         top = (event_te.tm_hour * EXTRATIMELINE) + startmin;
1032                                 }
1033                                 else if ((event_te.tm_hour >= dstart) && (event_te.tm_hour <= dend)) {
1034                                         startmin = diffmin = (event_te.tm_min / 2);
1035                                         top = (dstart * EXTRATIMELINE) + ((event_te.tm_hour - dstart) * TIMELINE) + startmin;
1036                                 }
1037                                 else if (event_te.tm_hour >dend) {
1038                                         startmin = diffmin = event_te.tm_min / 6;
1039                                         top = (dstart * EXTRATIMELINE) + ((dend - dstart - 1) * TIMELINE) + ((event_tm.tm_hour - dend + 1) * EXTRATIMELINE) + startmin ;
1040                                 }
1041                                 else {
1042                                         /* should never get here */
1043                                 }
1044
1045                                 /* Calculate the location of the bottom of the box */
1046                                 if (event_tm.tm_hour < dstart) {
1047                                         endmin = diffmin = event_tm.tm_min / 6;
1048                                         bottom = (event_tm.tm_hour * EXTRATIMELINE) + endmin;
1049                                 }
1050                                 else if ((event_tm.tm_hour >= dstart) && (event_tm.tm_hour <= dend)) {
1051                                         endmin = diffmin = (event_tm.tm_min / 2);
1052                                         bottom = (dstart * EXTRATIMELINE) + ((event_tm.tm_hour - dstart) * TIMELINE) + endmin ;
1053                                 }
1054                                 else if (event_tm.tm_hour >dend) {
1055                                         endmin = diffmin = event_tm.tm_min / 6;
1056                                         bottom = (dstart * EXTRATIMELINE) + ((dend - dstart + 1) * TIMELINE) + ((event_tm.tm_hour - dend - 1) * EXTRATIMELINE) + endmin;
1057                                 }
1058                                 else {
1059                                         /* should never get here */
1060                                 }
1061
1062                                 wc_printf("<dd  class=\"event_framed%s\" "
1063                                         "style=\"position: absolute; "
1064                                         "top:%dpx; left:%dpx; "
1065                                         "height:%dpx; \" >",
1066                                         (Cal->unread)?"_unread":"_read",
1067                                         top, (gap * 40), (bottom-top)
1068                                         );
1069                                 wc_printf("<a href=\"display_edit_event?"
1070                                         "msgnum=%ld?calview=day?year=%d?month=%d?day=%d?hour=%d\" "
1071                                         "class=\"event_title\">"
1072                                         ,
1073                                         Cal->cal_msgnum, year, month, day, t.hour
1074                                 );
1075                                 escputs((char *) icalproperty_get_comment(p));
1076                                 wc_printf("<span class=\"tooltip\"><span class=\"btttop\"></span><span class=\"bttmiddle\">");
1077                                 wc_printf("<i>%s: %s</i><br>", _("From"), Cal->from);
1078                                 wc_printf("<i>%s</i> ",          _("Summary:"));
1079                                 escputs((char *) icalproperty_get_comment(p));
1080                                 wc_printf("<br>");
1081                                 q = icalcomponent_get_first_property(Cal->cal,ICAL_LOCATION_PROPERTY);
1082                                 if (q) {
1083                                         wc_printf("<i>%s</i> ", _("Location:"));
1084                                         escputs((char *)icalproperty_get_comment(q));
1085                                         wc_printf("<br>");
1086                                                                 }
1087                                 if (!icaltime_compare(t, end_t)) { /* one day only */
1088                                         webcit_fmt_date(buf, 256, event_tt, DATEFMT_BRIEF);
1089                                         wc_printf("<i>%s</i> %s<br>", _("Date/time:"), buf);
1090                                 }
1091                                 else {
1092                                         webcit_fmt_date(buf, 256, event_tt, DATEFMT_BRIEF);
1093                                         wc_printf("<i>%s</i> %s<br>", _("Starting date/time:"), buf);
1094                                         webcit_fmt_date(buf, 256, event_tte, DATEFMT_BRIEF);
1095                                         wc_printf("<i>%s</i> %s<br>", _("Ending date/time:"), buf);
1096                                 }
1097                                 q = icalcomponent_get_first_property(Cal->cal,ICAL_DESCRIPTION_PROPERTY);
1098                                 if (q) {
1099                                         wc_printf("<i>%s</i> ", _("Notes:"));
1100                                         escputs((char *)icalproperty_get_comment(q));
1101                                         wc_printf("<br>");
1102                                 }
1103                                 wc_printf("</span><span class=\"bttbottom\"></span></span>");
1104                                 wc_printf("</a></dd>\n");
1105                         }
1106                 }
1107         }
1108         DeleteHashPos(&Pos);
1109 }
1110
1111 /*
1112  * view one day
1113  */
1114 void calendar_day_view(int year, int month, int day) {
1115         int hour;
1116         struct icaltimetype today, yesterday, tomorrow;
1117         long daystart;
1118         long dayend;
1119         struct tm d_tm;
1120         char d_str[160];
1121         int time_format;
1122         time_t today_t;
1123         int timeline = TIMELINE;
1124         int extratimeline = EXTRATIMELINE;
1125         int gap = 0;
1126         int hourlabel;
1127         int extrahourlabel;
1128
1129         time_format = get_time_format_cached ();
1130         get_pref_long("daystart", &daystart, 8);
1131         get_pref_long("dayend", &dayend, 17);
1132
1133         /* when loading daystart/dayend, replace missing, corrupt, or impossible values with defaults */
1134         if ((daystart < 0) || (dayend < 2) || (daystart >= 23) || (dayend > 23) || (dayend <= daystart)) {
1135                 daystart = 9;
1136                 dayend = 17;
1137         }
1138
1139         /* Today's date */
1140         memset(&d_tm, 0, sizeof d_tm);
1141         d_tm.tm_year = year - 1900;
1142         d_tm.tm_mon = month - 1;
1143         d_tm.tm_mday = day;
1144         today_t = mktime(&d_tm);
1145
1146         /* Figure out the dates for "yesterday" and "tomorrow" links */
1147
1148         memset(&today, 0, sizeof(struct icaltimetype));
1149         today.year = year;
1150         today.month = month;
1151         today.day = day;
1152         today.is_date = 1;
1153
1154         memcpy(&yesterday, &today, sizeof(struct icaltimetype));
1155         --yesterday.day;
1156         yesterday = icaltime_normalize(yesterday);
1157
1158         memcpy(&tomorrow, &today, sizeof(struct icaltimetype));
1159         ++tomorrow.day;
1160         tomorrow = icaltime_normalize(tomorrow);
1161
1162         /* Inner table (the real one) */
1163         wc_printf("<table class=\"calendar\" id=\"inner_day\"><tr> \n");
1164
1165         /* Innermost cell (contains hours etc.) */
1166         wc_printf("<td class=\"events_of_the_day\" >");
1167         wc_printf("<dl class=\"events\" >");
1168
1169         /* Now the middle of the day... */
1170
1171         extrahourlabel = extratimeline - 2;
1172         hourlabel = extrahourlabel * 150 / 100;
1173         if (hourlabel > (timeline - 2)) hourlabel = timeline - 2;
1174
1175         for (hour = 0; hour < daystart; ++hour) {       /* could do HEIGHT=xx */
1176                 wc_printf("<dt class=\"extrahour\">"
1177                         "<a href=\"display_edit_event?msgnum=0"
1178                         "?calview=day?year=%d?month=%d?day=%d?hour=%d?minute=0\">",
1179 /* TODO: what have these been used for?
1180                         (hour * extratimeline ),
1181                         extratimeline,
1182                         extrahourlabel,
1183 */
1184                         year, month, day, hour
1185                         );
1186
1187                 if (time_format == WC_TIMEFORMAT_24) {
1188                         wc_printf("%2d:00</a> ", hour);
1189                 }
1190                 else {
1191                         wc_printf("%d:00%s</a> ",
1192                                 ((hour == 0) ? 12 : (hour <= 12 ? hour : hour-12)),
1193                                 (hour < 12 ? "am" : "pm")
1194                                 );
1195                 }
1196
1197                 wc_printf("</dt>");
1198         }
1199
1200         gap = daystart * extratimeline;
1201
1202         for (hour = daystart; hour <= dayend; ++hour) {       /* could do HEIGHT=xx */
1203                 wc_printf("<dt class=\"hour\">"
1204                         "<a href=\"display_edit_event?msgnum=0?calview=day"
1205                         "?year=%d?month=%d?day=%d?hour=%d?minute=0\">",
1206 /*TODO: what have these been used for?
1207                         gap + ((hour - daystart) * timeline ),
1208                         timeline,
1209                         hourlabel,
1210 */
1211                         year, month, day, hour
1212                         );
1213
1214                 if (time_format == WC_TIMEFORMAT_24) {
1215                         wc_printf("%2d:00</a> ", hour);
1216                 }
1217                 else {
1218                         wc_printf("%d:00%s</a> ",
1219                                 (hour <= 12 ? hour : hour-12),
1220                                 (hour < 12 ? "am" : "pm")
1221                                                 );
1222                 }
1223
1224                 wc_printf("</dt>");
1225         }
1226
1227         gap = gap + ((dayend - daystart + 1) * timeline);
1228
1229         for (hour = (dayend + 1); hour < 24; ++hour) {       /* could do HEIGHT=xx */
1230                 wc_printf("<dt class=\"extrahour\">"
1231                         "<a href=\"display_edit_event?msgnum=0?calview=day"
1232                         "?year=%d?month=%d?day=%d?hour=%d?minute=0\">",
1233 /*TODO: what have these been used for?
1234                         gap + ((hour - dayend - 1) * extratimeline ),
1235                         extratimeline,
1236                         extrahourlabel,
1237 */
1238                         year, month, day, hour
1239                 );
1240
1241                 if (time_format == WC_TIMEFORMAT_24) {
1242                         wc_printf("%2d:00</a> ", hour);
1243                 }
1244                 else {
1245                         wc_printf("%d:00%s</a> ",
1246                                 (hour <= 12 ? hour : hour-12),
1247                                 (hour < 12 ? "am" : "pm")
1248                         );
1249                 }
1250
1251                 wc_printf("</dt>");
1252         }
1253
1254         /* Display events with start and end times on this day */
1255         calendar_day_view_display_events(today_t, year, month, day, 0, daystart, dayend);
1256
1257         wc_printf("</dl>");
1258         wc_printf("</td>");                     /* end of innermost table */
1259
1260         /* Display extra events (start/end times not present or not today) in the middle column */
1261         wc_printf("<td class=\"extra_events\">");
1262
1263         wc_printf("<ul>");
1264
1265         /* Display all-day events */
1266         calendar_day_view_display_events(today_t, year, month, day, 1, daystart, dayend);
1267
1268         wc_printf("</ul>");
1269
1270         wc_printf("</td>");     /* end extra on the middle */
1271
1272         wc_printf("<td width='20%%' align=\"center\" valign=top>");     /* begin stuff-on-the-right */
1273
1274         /* Begin todays-date-with-left-and-right-arrows */
1275         wc_printf("<table border=\"0\" width=\"100%%\" "
1276                 "cellspacing=\"0\" cellpadding=\"0\" bgcolor=\"#FFFFFF\">\n");
1277         wc_printf("<tr>");
1278
1279         /* Left arrow */
1280         wc_printf("<td align=\"center\">");
1281         wc_printf("<a href=\"readfwd?calview=day?year=%d?month=%d?day=%d\">",
1282                 yesterday.year, yesterday.month, yesterday.day);
1283         wc_printf("<img alt=\"previous\" align=\"middle\" src=\"static/webcit_icons/essen/32x32/back.png\" border=\"0\"></a>");
1284         wc_printf("</td>");
1285
1286         wc_strftime(d_str, sizeof d_str,
1287                 "<td align=\"center\">"
1288                 "<font size='+2'>%A</font><br>"
1289                 "<font size='+2'>%B</font><br>"
1290                 "<font size='+3'>%d</font><br>"
1291                 "<font size='+2'>%Y</font><br>"
1292                 "</td>",
1293                 &d_tm
1294                 );
1295         wc_printf("%s", d_str);
1296
1297         /* Right arrow */
1298         wc_printf("<td align=\"center\">");
1299         wc_printf("<a href=\"readfwd?calview=day?year=%d?month=%d?day=%d\">",
1300                 tomorrow.year, tomorrow.month, tomorrow.day);
1301         wc_printf("<img alt=\"%s\" align=\"middle\" src=\"static/webcit_icons/essen/32x32/forward.png\""
1302                 " border=\"0\"></a>\n", _("next"));
1303         wc_printf("</td>");
1304
1305         wc_printf("</tr></table>\n");
1306         /* End todays-date-with-left-and-right-arrows */
1307
1308         /* Embed a mini month calendar in this space */
1309         wc_printf("<br>\n");
1310         embeddable_mini_calendar(year, month);
1311
1312         wc_printf("</td></tr>");                        /* end stuff-on-the-right */
1313         wc_printf("</table>\n");                        /* end of inner table */
1314 }
1315
1316
1317 /*
1318  * Display today's events.  Returns the number of items displayed.
1319  */
1320 int calendar_summary_view(void) {
1321         long hklen;
1322         const char *HashKey;
1323         void *vCal;
1324         HashPos *Pos;
1325         disp_cal *Cal;
1326         icalproperty *p;
1327         struct icaltimetype t;
1328         time_t event_tt;
1329         struct tm event_tm;
1330         struct tm today_tm;
1331         time_t now;
1332         int all_day_event = 0;
1333         char timestring[SIZ];
1334         wcsession *WCC = WC;
1335         int num_displayed = 0;
1336
1337         if (GetCount(WC->disp_cal_items) == 0) {
1338                 return(0);
1339         }
1340
1341         now = time(NULL);
1342         localtime_r(&now, &today_tm);
1343
1344         Pos = GetNewHashPos(WCC->disp_cal_items, 0);
1345         while (GetNextHashPos(WCC->disp_cal_items, Pos, &hklen, &HashKey, &vCal)) {
1346                 Cal = (disp_cal*)vCal;
1347                 p = icalcomponent_get_first_property(Cal->cal, ICAL_DTSTART_PROPERTY);
1348                 if (p != NULL) {
1349                         t = icalproperty_get_dtstart(p);
1350                         event_tt = icaltime_as_timet(t);
1351                         if (t.is_date) {
1352                                 all_day_event = 1;
1353                         }
1354                         else {
1355                                 all_day_event = 0;
1356                         }
1357                         fmt_time(timestring, SIZ, event_tt);
1358
1359                         if (all_day_event) {
1360                                 gmtime_r(&event_tt, &event_tm);
1361                         }
1362                         else {
1363                                 localtime_r(&event_tt, &event_tm);
1364                         }
1365
1366                         if ( (event_tm.tm_year == today_tm.tm_year)
1367                                 && (event_tm.tm_mon == today_tm.tm_mon)
1368                                 && (event_tm.tm_mday == today_tm.tm_mday)
1369                         ) {
1370
1371                                 p = icalcomponent_get_first_property(Cal->cal, ICAL_SUMMARY_PROPERTY);
1372                                 if (p == NULL) {
1373                                         p = icalproperty_new_summary(_("Untitled Task"));
1374                                         icalcomponent_add_property(Cal->cal, p);
1375                                 }
1376                                 if (p != NULL)
1377                                 {
1378                                         if (WCC->CurRoom.view == VIEW_TASKS) {
1379                                                 wc_printf("<a href=\"display_edit_task"
1380                                                         "?msgnum=%ld"
1381                                                         "?return_to_summary=1"
1382                                                         "?go=",
1383                                                         Cal->cal_msgnum
1384                                                 );
1385                                                 escputs(ChrPtr(WCC->CurRoom.name));
1386                                                 wc_printf("\">");
1387                                         }
1388                                         else {
1389                                                 wc_printf("<a href=\"display_edit_event"
1390                                                         "?msgnum=%ld"
1391                                                         "?calview=summary"
1392                                                         "?year=%d"
1393                                                         "?month=%d"
1394                                                         "?day=%d"
1395                                                         "?go=",
1396                                                         Cal->cal_msgnum,
1397                                                         today_tm.tm_year + 1900,
1398                                                         today_tm.tm_mon + 1,
1399                                                         today_tm.tm_mday
1400                                                 );
1401                                                 escputs(ChrPtr(WCC->CurRoom.name));
1402                                                 wc_printf("\">");
1403                                         }
1404                                         escputs((char *) icalproperty_get_comment(p));
1405                                         if (!all_day_event) {
1406                                                 wc_printf(" (%s)", timestring);
1407                                         }
1408                                         wc_printf("</a><br>\n");
1409                                         ++num_displayed;
1410                                 }
1411                         }
1412                 }
1413         }
1414         DeleteHashPos(&Pos);
1415         DeleteHash(&WC->disp_cal_items);
1416         return(num_displayed);
1417 }
1418
1419 /*
1420  * Parse the URL variables in order to determine the scope and display of a calendar view
1421  */
1422 int calendar_GetParamsGetServerCall(SharedMessageStatus *Stat,
1423                                     void **ViewSpecific,
1424                                     long oper,
1425                                     char *cmd,
1426                                     long len,
1427                                     char *filter,
1428                                     long flen)
1429 {
1430         wcsession *WCC = WC;
1431         calview *c;
1432         time_t now;
1433         struct tm tm;
1434         char cv[32];
1435
1436         int span = 3888000;
1437
1438         c = (calview*) malloc(sizeof(calview));
1439         memset(c, 0, sizeof(calview));
1440         *ViewSpecific = (void*)c;
1441
1442         Stat->load_seen = 1;
1443         strcpy(cmd, "MSGS ALL");
1444         Stat->maxmsgs = 32767;
1445
1446         /* In case no date was specified, go with today */
1447         now = time(NULL);
1448         localtime_r(&now, &tm);
1449         c->year = tm.tm_year + 1900;
1450         c->month = tm.tm_mon + 1;
1451         c->day = tm.tm_mday;
1452
1453         /* Now see if a date was specified */
1454         if (havebstr("year")) c->year = ibstr("year");
1455         if (havebstr("month")) c->month = ibstr("month");
1456         if (havebstr("day")) c->day = ibstr("day");
1457
1458         /* How would you like that cooked? */
1459         if (havebstr("calview")) {
1460                 strcpy(cv, bstr("calview"));
1461         }
1462         else {
1463                 strcpy(cv, "month");
1464         }
1465
1466         /* Display the selected view */
1467         if (!strcasecmp(cv, "day")) {
1468                 c->view = calview_day;
1469         }
1470         else if (!strcasecmp(cv, "week")) {
1471                 c->view = calview_week;
1472         }
1473         else if (!strcasecmp(cv, "summary")) {  /* shouldn't ever happen, but just in case */
1474                 c->view = calview_day;
1475         }
1476         else {
1477                 if (WCC->CurRoom.view == VIEW_CALBRIEF) {
1478                         c->view = calview_brief;
1479                 }
1480                 else {
1481                         c->view = calview_month;
1482                 }
1483         }
1484
1485         /* Now try and set the lower and upper bounds so that we don't
1486          * burn too many cpu cycles parsing data way in the past or future
1487          */
1488
1489         tm.tm_year = c->year - 1900;
1490         tm.tm_mon = c->month - 1;
1491         tm.tm_mday = c->day;
1492         now = mktime(&tm);
1493
1494         if (c->view == calview_month)   span = 3888000;
1495         if (c->view == calview_brief)   span = 3888000;
1496         if (c->view == calview_week)    span = 604800;
1497         if (c->view == calview_day)     span = 86400;
1498         if (c->view == calview_summary) span = 86400;
1499
1500         c->lower_bound = now - span;
1501         c->upper_bound = now + span;
1502         return 200;
1503 }
1504
1505
1506
1507 /*
1508  * Render a calendar view from data previously loaded into memory
1509  */
1510 int calendar_RenderView_or_Tail(SharedMessageStatus *Stat,
1511                                 void **ViewSpecific,
1512                                 long oper)
1513 {
1514         wcsession *WCC = WC;
1515         calview *c = (calview*) *ViewSpecific;
1516
1517         if (c->view == calview_day) {
1518                 calendar_day_view(c->year, c->month, c->day);
1519         }
1520         else if (c->view == calview_week) {
1521                 calendar_week_view(c->year, c->month, c->day);
1522         }
1523         else {
1524                 if (WCC->CurRoom.view == VIEW_CALBRIEF) {
1525                         calendar_brief_month_view(c->year, c->month, c->day);
1526                 }
1527                 else {
1528                         calendar_month_view(c->year, c->month, c->day);
1529                 }
1530         }
1531
1532         /* Free the in-memory list of calendar items */
1533         DeleteHash(&WC->disp_cal_items);
1534         return 0;
1535 }
1536
1537 void
1538 InitModule_CALENDAR_VIEW
1539 (void)
1540 {
1541         WebcitAddUrlHandler(HKEY("mini_calendar"), "", 0, ajax_mini_calendar, AJAX);
1542 }