webcit/calendar_view.c

   1 /*
   2  * $Id$
   3  *
   4  * Handles the HTML display of calendar items.
   5  */
   6
   7 #include "webcit.h"
   8 #include "webserver.h"
   9 #include "calendar.h"
  10
  11 /* These define how high the hour rows are in the day view */
  12 #define TIMELINE        30
  13 #define EXTRATIMELINE   (TIMELINE / 2)
  14
  15 void embeddable_mini_calendar(int year, int month)
  16 {
  17         struct tm starting_tm;
  18         struct tm tm;
  19         time_t thetime;
  20         int i;
  21         time_t previous_month;
  22         time_t next_month;
  23         time_t colheader_time;
  24         struct tm colheader_tm;
  25         char colheader_label[32];
  26         long weekstart = 0;
  27         char url[256];
  28         char div_id[256];
  29
  30         snprintf(div_id, sizeof div_id, "mini_calendar_%d", rand() );
  31
  32         /* Determine what day to start.  If an impossible value is found, start on Sunday.
  33         */
  34         get_pref_long("weekstart", &weekstart, 17);
  35         if (weekstart > 6) weekstart = 0;
  36
  37         /*
  38         * Now back up to the 1st of the month...
  39         */
  40         memset(&starting_tm, 0, sizeof(struct tm));
  41
  42         starting_tm.tm_year = year - 1900;
  43         starting_tm.tm_mon = month - 1;
  44         starting_tm.tm_mday = 1;
  45         thetime = mktime(&starting_tm);
  46
  47         memcpy(&tm, &starting_tm, sizeof(struct tm));
  48         while (tm.tm_mday != 1) {
  49                 thetime = thetime - (time_t)86400;      /* go back 24 hours */
  50                 localtime_r(&thetime, &tm);
  51         }
  52
  53         /* Determine previous and next months ... for links */
  54         previous_month = thetime - (time_t)864000L;     /* back 10 days */
  55         next_month = thetime + (time_t)(31L * 86400L);  /* ahead 31 days */
  56
  57         /* Now back up until we're on the user's preferred start day */
  58         localtime_r(&thetime, &tm);
  59         while (tm.tm_wday != weekstart) {
  60                 thetime = thetime - (time_t)86400;      /* go back 24 hours */
  61                 localtime_r(&thetime, &tm);
  62         }
  63
  64         wc_printf("<div class=\"mini_calendar\" id=\"%s\">\n", div_id);
  65
  66         /* Previous month link */
  67         localtime_r(&previous_month, &tm);
  68         wc_printf("<a href=\"javascript:minical_change_month(%d,%d);\">&laquo;</a>",
  69                 (int)(tm.tm_year)+1900, tm.tm_mon + 1);
  70
  71         wc_strftime(colheader_label, sizeof colheader_label, "%B", &starting_tm);
  72         wc_printf("&nbsp;&nbsp;"
  73                 "<span class=\"mini_calendar_month_label\">"
  74                 "%s %d"
  75                 "</span>"
  76                 "&nbsp;&nbsp;", colheader_label, year);
  77
  78         /* Next month link */
  79         localtime_r(&next_month, &tm);
  80         wc_printf("<a href=\"javascript:minical_change_month(%d,%d);\">&raquo;</a>",
  81                 (int)(tm.tm_year)+1900, tm.tm_mon + 1);
  82
  83         wc_printf("<table border=0 cellpadding=1 cellspacing=1 class=\"mini_calendar_days\">"
  84                 "<tr>");
  85         colheader_time = thetime;
  86         for (i=0; i<7; ++i) {
  87                 colheader_time = thetime + (i * 86400) ;
  88                 localtime_r(&colheader_time, &colheader_tm);
  89                 wc_strftime(colheader_label, sizeof colheader_label, "%A", &colheader_tm);
  90                 wc_printf("<th>%c</th>", colheader_label[0]);
  91
  92         }
  93         wc_printf("</tr>\n");
  94
  95
  96         /* Now do 35 or 42 days */
  97         for (i = 0; i < 42; ++i) {
  98                 localtime_r(&thetime, &tm);
  99
 100                 if (i < 35) {
 101
 102                         /* Before displaying Sunday, start a new row */
 103                         if ((i % 7) == 0) {
 104                                 wc_printf("<tr>");
 105                         }
 106
 107                         if (tm.tm_mon == month-1) {
 108                                 snprintf(url, sizeof url, "readfwd?calview=day&year=%d&month=%d&day=%d",
 109                                         tm.tm_year+1900, tm.tm_mon+1, tm.tm_mday);
 110                                 wc_printf("<td><a href=\"%s\">%d</a></td>", url, tm.tm_mday);
 111                         }
 112                         else {
 113                                 wc_printf("<td> </td>");
 114                         }
 115
 116                         /* After displaying one week, end the row */
 117                         if ((i % 7) == 6) {
 118                                 wc_printf("</tr>\n");
 119                         }
 120
 121                 }
 122
 123                 thetime += (time_t)86400;               /* ahead 24 hours */
 124         }
 125
 126         wc_printf("</table>"                    /* end of inner table */
 127                 "</div>\n");
 128
 129         StrBufAppendPrintf(WC->trailing_javascript,
 130                 "       function minical_change_month(year, month) {                                    \n"
 131                 "               p = 'year=' + year + '&month=' + month                                  \n"
 132                 "                       + '&r=' + CtdlRandomString();                                   \n"
 133                 "               new Ajax.Updater('%s', 'mini_calendar',                                 \n"
 134                 "                       { method: 'get', parameters: p, evalScripts: true } );          \n"
 135                 "       }                                                                               \n"
 136                 "",
 137                 div_id
 138         );
 139
 140 }
 141
 142 /*
 143  * ajax embedder for the above mini calendar
 144  */
 145 void ajax_mini_calendar(void)
 146 {
 147         embeddable_mini_calendar( ibstr("year"), ibstr("month"));
 148 }
 149
 150
 151 /*
 152  * Display one day of a whole month view of a calendar
 153  */
 154 void calendar_month_view_display_events(int year, int month, int day)
 155 {
 156         long hklen;
 157         const char *HashKey;
 158         void *vCal;
 159         HashPos *Pos;
 160         disp_cal *Cal;
 161         icalproperty *p = NULL;
 162         icalproperty *q = NULL;
 163         struct icaltimetype t;
 164         struct icaltimetype end_t;
 165         struct icaltimetype today_start_t;
 166         struct icaltimetype today_end_t;
 167         struct icaltimetype today_t;
 168         struct tm starting_tm;
 169         struct tm ending_tm;
 170         int all_day_event = 0;
 171         int show_event = 0;
 172         char buf[256];
 173         wcsession *WCC = WC;
 174         time_t tt;
 175
 176         if (GetCount(WCC->disp_cal_items) == 0) {
 177                 wc_printf("<br /><br /><br />\n");
 178                 return;
 179         }
 180
 181         /*
 182          * Create an imaginary event which spans the 24 hours of today.  Any events which
 183          * overlap with this one take place at least partially in this day.  We have to
 184          * convert it from a struct tm in order to make it UTC.
 185          */
 186         memset(&starting_tm, 0, sizeof(struct tm));
 187         starting_tm.tm_year = year - 1900;
 188         starting_tm.tm_mon = month - 1;
 189         starting_tm.tm_mday = day;
 190         starting_tm.tm_hour = 0;
 191         starting_tm.tm_min = 0;
 192         today_start_t = icaltime_from_timet_with_zone(mktime(&starting_tm), 0, icaltimezone_get_utc_timezone());
 193         today_start_t.is_utc = 1;
 194
 195         memset(&ending_tm, 0, sizeof(struct tm));
 196         ending_tm.tm_year = year - 1900;
 197         ending_tm.tm_mon = month - 1;
 198         ending_tm.tm_mday = day;
 199         ending_tm.tm_hour = 23;
 200         ending_tm.tm_min = 59;
 201         today_end_t = icaltime_from_timet_with_zone(mktime(&ending_tm), 0, icaltimezone_get_utc_timezone());
 202         today_end_t.is_utc = 1;
 203
 204         /*
 205          * Create another one without caring about the timezone for all day events.
 206          */
 207         today_t = icaltime_null_date();
 208         today_t.year = year;
 209         today_t.month = month;
 210         today_t.day = day;
 211
 212         /*
 213          * Now loop through our list of events to see which ones occur today.
 214          */
 215         Pos = GetNewHashPos(WCC->disp_cal_items, 0);
 216         while (GetNextHashPos(WCC->disp_cal_items, Pos, &hklen, &HashKey, &vCal)) {
 217                 Cal = (disp_cal*)vCal;
 218                 all_day_event = 0;
 219                 q = icalcomponent_get_first_property(Cal->cal, ICAL_DTSTART_PROPERTY);
 220                 if (q != NULL) {
 221                         t = icalproperty_get_dtstart(q);
 222                 }
 223                 else {
 224                         memset(&t, 0, sizeof t);
 225                 }
 226                 q = icalcomponent_get_first_property(Cal->cal, ICAL_DTEND_PROPERTY);
 227                 if (q != NULL) {
 228                         end_t = icalproperty_get_dtend(q);
 229                 }
 230                 else {
 231                         memset(&end_t, 0, sizeof end_t);
 232                 }
 233                 if (t.is_date) all_day_event = 1;
 234
 235                 if (all_day_event)
 236                 {
 237                         show_event = ical_ctdl_is_overlap(t, end_t, today_t, icaltime_null_time());
 238                 }
 239                 else
 240                 {
 241                         show_event = ical_ctdl_is_overlap(t, end_t, today_start_t, today_end_t);
 242                 }
 243
 244                 /*
 245                  * If we determined that this event occurs today, then display it.
 246                  */
 247                 if (show_event) {
 248                         p = icalcomponent_get_first_property(Cal->cal, ICAL_SUMMARY_PROPERTY);
 249                         if (p == NULL) {
 250                                 p = icalproperty_new_summary(_("Untitled Event"));
 251                                 icalcomponent_add_property(Cal->cal, p);
 252                         }
 253                         if (p != NULL) {
 254
 255                                 if (all_day_event) {
 256                                         wc_printf("<table border=0 cellpadding=2><TR>"
 257                                                 "<td bgcolor=\"#CCCCDD\">"
 258                                                 );
 259                                 }
 260
 261                                 wc_printf("<font size=\"-1\">"
 262                                         "<a class=\"event%s\" href=\"display_edit_event?"
 263                                         "msgnum=%ld?calview=month?year=%d?month=%d?day=%d\""
 264                                         " btt_tooltext=\"",
 265                                         (Cal->unread)?"_unread":"_read",
 266                                         Cal->cal_msgnum,
 267                                         year, month, day
 268                                         );
 269
 270                                 wc_printf("<i>%s: %s</i><br />", _("From"), Cal->from);
 271                                 wc_printf("<i>%s</i> ",          _("Summary:"));
 272                                 escputs((char *)icalproperty_get_comment(p));
 273                                 wc_printf("<br />");
 274
 275                                 q = icalcomponent_get_first_property(
 276                                         Cal->cal,
 277                                         ICAL_LOCATION_PROPERTY);
 278                                 if (q) {
 279                                         wc_printf("<i>%s</i> ", _("Location:"));
 280                                         escputs((char *)icalproperty_get_comment(q));
 281                                         wc_printf("<br />");
 282                                 }
 283
 284                                 /*
 285                                  * Only show start/end times if we're actually looking at the VEVENT
 286                                  * component.  Otherwise it shows bogus dates for e.g. timezones
 287                                  */
 288                                 if (icalcomponent_isa(Cal->cal) == ICAL_VEVENT_COMPONENT) {
 289
 290                                         q = icalcomponent_get_first_property(Cal->cal, ICAL_DTSTART_PROPERTY);
 291                                         if (q != NULL) {
 292                                                 int no_end = 0;
 293
 294                                                 t = icalproperty_get_dtstart(q);
 295                                                 q = icalcomponent_get_first_property(Cal->cal, ICAL_DTEND_PROPERTY);
 296                                                 if (q != NULL) {
 297                                                         end_t = icalproperty_get_dtend(q);
 298                                                 }
 299                                                 else {
 300                                                         /*
 301                                                          * events with starting date/time equal
 302                                                          * ending date/time might get only
 303                                                          * DTSTART but no DTEND
 304                                                          */
 305                                                         no_end = 1;
 306                                                 }
 307
 308                                                 if (t.is_date) {
 309                                                         /* all day event */
 310                                                         struct tm d_tm;
 311
 312                                                         if (!no_end) {
 313                                                                 /* end given, have to adjust it */
 314                                                                 icaltime_adjust(&end_t, -1, 0, 0, 0);
 315                                                         }
 316                                                         memset(&d_tm, 0, sizeof d_tm);
 317                                                         d_tm.tm_year = t.year - 1900;
 318                                                         d_tm.tm_mon = t.month - 1;
 319                                                         d_tm.tm_mday = t.day;
 320                                                         wc_strftime(buf, sizeof buf, "%x", &d_tm);
 321
 322                                                         if (no_end || !icaltime_compare(t, end_t)) {
 323                                                                 wc_printf("<i>%s</i> %s<br>",
 324                                                                         _("Date:"), buf);
 325                                                         }
 326                                                         else {
 327                                                                 wc_printf("<i>%s</i> %s<br>",
 328                                                                         _("Starting date:"), buf);
 329                                                                 d_tm.tm_year = end_t.year - 1900;
 330                                                                 d_tm.tm_mon = end_t.month - 1;
 331                                                                 d_tm.tm_mday = end_t.day;
 332                                                                 wc_strftime(buf, sizeof buf, "%x", &d_tm);
 333                                                                 wc_printf("<i>%s</i> %s<br>",
 334                                                                         _("Ending date:"), buf);
 335                                                         }
 336                                                 }
 337                                                 else {
 338                                                         tt = icaltime_as_timet(t);
 339                                                         webcit_fmt_date(buf, 256, tt, DATEFMT_BRIEF);
 340                                                         if (no_end || !icaltime_compare(t, end_t)) {
 341                                                                 wc_printf("<i>%s</i> %s<br>",
 342                                                                         _("Date/time:"), buf);
 343                                                         }
 344                                                         else {
 345                                                                 wc_printf("<i>%s</i> %s<br>",
 346                                                                         _("Starting date/time:"), buf);
 347                                                                 tt = icaltime_as_timet(end_t);
 348                                                                 webcit_fmt_date(buf, 256, tt, DATEFMT_BRIEF);
 349                                                                 wc_printf("<i>%s</i> %s<br>", _("Ending date/time:"), buf);
 350                                                         }
 351
 352                                                 }
 353                                         }
 354
 355                                 }
 356
 357                                 q = icalcomponent_get_first_property(Cal->cal, ICAL_DESCRIPTION_PROPERTY);
 358                                 if (q) {
 359                                         wc_printf("<i>%s</i> ", _("Notes:"));
 360                                         escputs((char *)icalproperty_get_comment(q));
 361                                         wc_printf("<br />");
 362                                 }
 363
 364                                 wc_printf("\">");
 365                                 escputs((char *)
 366                                         icalproperty_get_comment(p));
 367                                 wc_printf("</a></font><br />\n");
 368
 369                                 if (all_day_event) {
 370                                         wc_printf("</td></tr></table>");
 371                                 }
 372
 373                         }
 374
 375                 }
 376
 377
 378         }
 379         DeleteHashPos(&Pos);
 380 }
 381
 382
 383 /*
 384  * Display one day of a whole month view of a calendar
 385  */
 386 void calendar_month_view_brief_events(time_t thetime, const char *daycolor) {
 387         long hklen;
 388         const char *HashKey;
 389         void *vCal;
 390         HashPos *Pos;
 391         time_t event_tt;
 392         time_t event_tts;
 393         time_t event_tte;
 394         wcsession *WCC = WC;
 395         struct tm event_tms;
 396         struct tm event_tme;
 397         struct tm today_tm;
 398         icalproperty *p;
 399         icalproperty *e;
 400         struct icaltimetype t;
 401         disp_cal *Cal;
 402         int month, day, year;
 403         int all_day_event = 0;
 404         char *timeformat;
 405         int time_format;
 406
 407         time_format = get_time_format_cached ();
 408
 409         if (time_format == WC_TIMEFORMAT_24) timeformat="%k:%M";
 410         else timeformat="%I:%M %p";
 411
 412         localtime_r(&thetime, &today_tm);
 413         month = today_tm.tm_mon + 1;
 414         day = today_tm.tm_mday;
 415         year = today_tm.tm_year + 1900;
 416
 417         Pos = GetNewHashPos(WCC->disp_cal_items, 0);
 418         while (GetNextHashPos(WCC->disp_cal_items, Pos, &hklen, &HashKey, &vCal)) {
 419                 Cal = (disp_cal*)vCal;
 420                 p = icalcomponent_get_first_property(Cal->cal, ICAL_DTSTART_PROPERTY);
 421                 if (p != NULL) {
 422                         t = icalproperty_get_dtstart(p);
 423                         event_tt = icaltime_as_timet(t);
 424                         event_tts=event_tt;
 425                         if (t.is_date) all_day_event = 1;
 426                         else all_day_event = 0;
 427
 428                         if (all_day_event) {
 429                                 gmtime_r(&event_tts, &event_tms);
 430                         }
 431                         else {
 432                                 localtime_r(&event_tts, &event_tms);
 433                         }
 434                         /* \todo epoch &! daymask */
 435                         if ((event_tms.tm_year == today_tm.tm_year)
 436                                 && (event_tms.tm_mon == today_tm.tm_mon)
 437                         && (event_tms.tm_mday == today_tm.tm_mday)) {
 438
 439
 440                         char sbuf[255];
 441                         char ebuf[255];
 442
 443                         p = icalcomponent_get_first_property(
 444                                 Cal->cal,
 445                                 ICAL_SUMMARY_PROPERTY);
 446                         if (p == NULL) {
 447                                 p = icalproperty_new_summary(_("Untitled Event"));
 448                                 icalcomponent_add_property(Cal->cal, p);
 449                         }
 450                         e = icalcomponent_get_first_property(
 451                                 Cal->cal,
 452                                 ICAL_DTEND_PROPERTY);
 453                         if ((p != NULL) && (e != NULL)) {
 454                                 time_t difftime;
 455                                 int hours, minutes;
 456                                 t = icalproperty_get_dtend(e);
 457                                 event_tte = icaltime_as_timet(t);
 458                                 localtime_r(&event_tte, &event_tme);
 459                                 difftime=(event_tte-event_tts)/60;
 460                                 hours=(int)(difftime / 60);
 461                                 minutes=difftime % 60;
 462                                 wc_printf("<tr><td bgcolor='%s'>%i:%2i</td><td bgcolor='%s'>"
 463                                         "<font size=\"-1\">"
 464                                         "<a class=\"event%s\" href=\"display_edit_event?msgnum=%ld?calview=calbrief?year=%s?month=%s?day=%s\">",
 465                                         daycolor,
 466                                         hours, minutes,
 467                                         (Cal->unread)?"_unread":"_read",
 468                                         daycolor,
 469                                         Cal->cal_msgnum,
 470                                         bstr("year"),
 471                                         bstr("month"),
 472                                         bstr("day")
 473                                         );
 474
 475                                 escputs((char *)
 476                                         icalproperty_get_comment(p));
 477                                 /* \todo: allso ammitime format */
 478                                 wc_strftime(&sbuf[0], sizeof(sbuf), timeformat, &event_tms);
 479                                 wc_strftime(&ebuf[0], sizeof(sbuf), timeformat, &event_tme);
 480
 481                                 wc_printf("</a></font></td>"
 482                                         "<td bgcolor='%s'>%s</td><td bgcolor='%s'>%s</td></tr>",
 483                                         daycolor,
 484                                         sbuf,
 485                                         daycolor,
 486                                         ebuf);
 487                                 }
 488
 489                         }
 490
 491
 492                 }
 493         }
 494         DeleteHashPos(&Pos);
 495 }
 496
 497
 498 /*
 499  * view one month. pretty view
 500  */
 501 void calendar_month_view(int year, int month, int day) {
 502         struct tm starting_tm;
 503         struct tm tm;
 504         struct tm today_tm;
 505         time_t thetime;
 506         int i;
 507         time_t previous_month;
 508         time_t next_month;
 509         time_t colheader_time;
 510         time_t today_timet;
 511         struct tm colheader_tm;
 512         char colheader_label[32];
 513         long weekstart = 0;
 514
 515         /*
 516          * Make sure we know which day is today.
 517          */
 518         today_timet = time(NULL);
 519         localtime_r(&today_timet, &today_tm);
 520
 521         /*
 522          * Determine what day to start.  If an impossible value is found, start on Sunday.
 523          */
 524         get_pref_long("weekstart", &weekstart, 17);
 525         if (weekstart > 6) weekstart = 0;
 526
 527         /*
 528          * Now back up to the 1st of the month...
 529          */
 530         memset(&starting_tm, 0, sizeof(struct tm));
 531
 532         starting_tm.tm_year = year - 1900;
 533         starting_tm.tm_mon = month - 1;
 534         starting_tm.tm_mday = day;
 535         thetime = mktime(&starting_tm);
 536
 537         memcpy(&tm, &starting_tm, sizeof(struct tm));
 538         while (tm.tm_mday != 1) {
 539                 thetime = thetime - (time_t)86400;      /* go back 24 hours */
 540                 localtime_r(&thetime, &tm);
 541         }
 542
 543         /* Determine previous and next months ... for links */
 544         previous_month = thetime - (time_t)864000L;     /* back 10 days */
 545         next_month = thetime + (time_t)(31L * 86400L);  /* ahead 31 days */
 546
 547         /* Now back up until we're on the user's preferred start day */
 548         localtime_r(&thetime, &tm);
 549         while (tm.tm_wday != weekstart) {
 550                 thetime = thetime - (time_t)86400;      /* go back 24 hours */
 551                 localtime_r(&thetime, &tm);
 552         }
 553
 554         /* Outer table (to get the background color) */
 555         wc_printf("<div class=\"fix_scrollbar_bug\">"
 556                 "<table class=\"calendar\"> \n <tr><td>");
 557
 558         wc_printf("<table width=100%% border=0 cellpadding=0 cellspacing=0><tr>\n");
 559
 560         wc_printf("<td align=center>");
 561
 562         localtime_r(&previous_month, &tm);
 563         wc_printf("<a href=\"readfwd?calview=month?year=%d?month=%d?day=1\">",
 564                 (int)(tm.tm_year)+1900, tm.tm_mon + 1);
 565         wc_printf("<img align=middle src=\"static/prevdate_32x.gif\" border=0></A>\n");
 566
 567         wc_strftime(colheader_label, sizeof colheader_label, "%B", &starting_tm);
 568         wc_printf("&nbsp;&nbsp;"
 569                 "<font size=+1 color=\"#FFFFFF\">"
 570                 "%s %d"
 571                 "</font>"
 572                 "&nbsp;&nbsp;", colheader_label, year);
 573
 574         localtime_r(&next_month, &tm);
 575         wc_printf("<a href=\"readfwd?calview=month?year=%d?month=%d?day=1\">",
 576                 (int)(tm.tm_year)+1900, tm.tm_mon + 1);
 577         wc_printf("<img align=middle src=\"static/nextdate_32x.gif\" border=0></A>\n");
 578
 579         wc_printf("</td></tr></table>\n");
 580
 581         /* Inner table (the real one) */
 582         wc_printf("<table width=100%% border=0 cellpadding=1 cellspacing=1 "
 583                 "bgcolor=#204B78 id=\"inner_month\"><tr>");
 584         wc_printf("<th align=center width=2%%></th>");
 585         colheader_time = thetime;
 586         for (i=0; i<7; ++i) {
 587                 colheader_time = thetime + (i * 86400) ;
 588                 localtime_r(&colheader_time, &colheader_tm);
 589                 wc_strftime(colheader_label, sizeof colheader_label, "%A", &colheader_tm);
 590                 wc_printf("<th align=center width=14%%>"
 591                         "<font color=\"#FFFFFF\">%s</font></th>", colheader_label);
 592
 593         }
 594         wc_printf("</tr>\n");
 595
 596
 597         /* Now do 35 or 42 days */
 598         localtime_r(&thetime, &tm);
 599         for (i = 0; i<42; ++i) {
 600
 601                 /* Before displaying the first day of the week, start a new row */
 602                 if ((i % 7) == 0) {
 603                         wc_printf("<tr><td class=\"week_of_year\">");
 604                         wc_strftime(colheader_label, sizeof colheader_label, "%V", &tm);
 605                         wc_printf("%s ", colheader_label);
 606                 }
 607
 608                 wc_printf("<td class=\"cal%s\"><div class=\"day\">",
 609                         ((tm.tm_mon != month-1) ? "out" :
 610                                 (((tm.tm_year == today_tm.tm_year) && (tm.tm_mon == today_tm.tm_mon) && (tm.tm_mday == today_tm.tm_mday)) ? "today" :
 611                                 ((tm.tm_wday==0 || tm.tm_wday==6) ? "weekend" :
 612                                         "day")))
 613                         );
 614                 if ((i==0) || (tm.tm_mday == 1)) {
 615                         wc_strftime(colheader_label, sizeof colheader_label, "%B", &tm);
 616                         wc_printf("%s ", colheader_label);
 617                 }
 618                 wc_printf("<a href=\"readfwd?calview=day?year=%d?month=%d?day=%d\">"
 619                         "%d</a></div>",
 620                         tm.tm_year + 1900,
 621                         tm.tm_mon + 1,
 622                         tm.tm_mday,
 623                         tm.tm_mday);
 624
 625                 /* put the data here, stupid */
 626                 calendar_month_view_display_events(
 627                         tm.tm_year + 1900,
 628                         tm.tm_mon + 1,
 629                         tm.tm_mday
 630                         );
 631
 632                 wc_printf("</td>");
 633
 634                 /* After displaying the last day of the week, end the row */
 635                 if ((i % 7) == 6) {
 636                         wc_printf("</tr>\n");
 637                 }
 638
 639                 thetime += (time_t)86400;               /* ahead 24 hours */
 640                 localtime_r(&thetime, &tm);
 641
 642                 if ( ((i % 7) == 6) && (tm.tm_mon != month-1) && (tm.tm_mday < 15) ) {
 643                         i = 100;        /* break out of the loop */
 644                 }
 645         }
 646
 647         wc_printf("</table>"                    /* end of inner table */
 648                 "</td></tr></table>"            /* end of outer table */
 649                 "</div>\n");
 650
 651         /*
 652          * Initialize the bubble tooltips.
 653          *
 654          * Yes, this is as stupid as it looks.  Instead of just making the call
 655          * to btt_enableTooltips() straight away, we have to create a timer event
 656          * and let it initialize as an event after 1 millisecond.  This is to
 657          * work around a bug in Internet Explorer that causes it to crash if we
 658          * manipulate the innerHTML of various DOM nodes while the page is still
 659          * being rendered.  See http://www.shaftek.org/blog/archives/000212.html
 660          * for more information.
 661          */
 662         StrBufAppendPrintf(WC->trailing_javascript,
 663                 " setTimeout(\"btt_enableTooltips('inner_month')\", 1); \n"
 664         );
 665 }
 666
 667 /*
 668  * view one month. brief view
 669  */
 670 void calendar_brief_month_view(int year, int month, int day) {
 671         struct tm starting_tm;
 672         struct tm tm;
 673         time_t thetime;
 674         int i;
 675         time_t previous_month;
 676         time_t next_month;
 677         char month_label[32];
 678
 679         /* Determine what day to start.
 680          * First, back up to the 1st of the month...
 681          */
 682         memset(&starting_tm, 0, sizeof(struct tm));
 683         starting_tm.tm_year = year - 1900;
 684         starting_tm.tm_mon = month - 1;
 685         starting_tm.tm_mday = day;
 686         thetime = mktime(&starting_tm);
 687
 688         memcpy(&tm, &starting_tm, sizeof(struct tm));
 689         while (tm.tm_mday != 1) {
 690                 thetime = thetime - (time_t)86400;      /* go back 24 hours */
 691                 localtime_r(&thetime, &tm);
 692         }
 693
 694         /* Determine previous and next months ... for links */
 695         previous_month = thetime - (time_t)864000L;     /* back 10 days */
 696         next_month = thetime + (time_t)(31L * 86400L);  /* ahead 31 days */
 697
 698         /* Now back up until we're on a Sunday */
 699         localtime_r(&thetime, &tm);
 700         while (tm.tm_wday != 0) {
 701                 thetime = thetime - (time_t)86400;      /* go back 24 hours */
 702                 localtime_r(&thetime, &tm);
 703         }
 704
 705         /* Outer table (to get the background color) */
 706         wc_printf("<div class=\"fix_scrollbar_bug\">"
 707                 "<table width=100%% border=0 cellpadding=0 cellspacing=0 "
 708                 "bgcolor=#204B78><TR><TD>\n");
 709
 710         wc_printf("<table width=100%% border=0 cellpadding=0 cellspacing=0><tr>\n");
 711
 712         wc_printf("<td align=center>");
 713
 714         localtime_r(&previous_month, &tm);
 715         wc_printf("<a href=\"readfwd?calview=month?year=%d?month=%d?day=1\">",
 716                 (int)(tm.tm_year)+1900, tm.tm_mon + 1);
 717         wc_printf("<img align=middle src=\"static/prevdate_32x.gif\" border=0></A>\n");
 718
 719         wc_strftime(month_label, sizeof month_label, "%B", &tm);
 720         wc_printf("&nbsp;&nbsp;"
 721                 "<font size=+1 color=\"#FFFFFF\">"
 722                 "%s %d"
 723                 "</font>"
 724                 "&nbsp;&nbsp;", month_label, year);
 725
 726         localtime_r(&next_month, &tm);
 727         wc_printf("<a href=\"readfwd?calview=month?year=%d?month=%d?day=1\">",
 728                 (int)(tm.tm_year)+1900, tm.tm_mon + 1);
 729         wc_printf("<img align=middle src=\"static/nextdate_32x.gif\" border=0></A>\n");
 730
 731         wc_printf("</td></tr></table>\n");
 732
 733         /* Inner table (the real one) */
 734         wc_printf("<table width=100%% border=0 cellpadding=1 cellspacing=1 "
 735                 "bgcolor=#EEEECC><TR>");
 736         wc_printf("</tr>\n");
 737         wc_printf("<tr><td colspan=\"100%%\">\n");
 738
 739         /* Now do 35 days */
 740         for (i = 0; i < 35; ++i) {
 741                 char weeknumber[255];
 742                 char weekday_name[32];
 743                 char *daycolor;
 744                 localtime_r(&thetime, &tm);
 745
 746
 747                 /* Before displaying Sunday, start a new CELL */
 748                 if ((i % 7) == 0) {
 749                         wc_strftime(&weeknumber[0], sizeof(weeknumber), "%U", &tm);
 750                         wc_printf("<table border='0' bgcolor=\"#EEEECC\" width='100%%'> <tr><th colspan='4'>%s %s</th></tr>"
 751                                 "   <tr><td>%s</td><td width=70%%>%s</td><td>%s</td><td>%s</td></tr>\n",
 752                                 _("Week"),
 753                                 weeknumber,
 754                                 _("Hours"),
 755                                 _("Subject"),
 756                                 _("Start"),
 757                                 _("End")
 758                                 );
 759                 }
 760
 761                 daycolor=((tm.tm_mon != month-1) ? "DDDDDD" :
 762                         ((tm.tm_wday==0 || tm.tm_wday==6) ? "EEEECC" :
 763                                 "FFFFFF"));
 764
 765                 /* Day Header */
 766                 wc_strftime(weekday_name, sizeof weekday_name, "%A", &tm);
 767                 wc_printf("<tr><td bgcolor='%s' colspan='1' align='left'> %s,%i."
 768                         "</td><td bgcolor='%s' colspan='3'><hr></td></tr>\n",
 769                         daycolor,
 770                         weekday_name,tm.tm_mday,
 771                         daycolor);
 772
 773                 /* put the data of one day  here, stupid */
 774                 calendar_month_view_brief_events(thetime, daycolor);
 775
 776
 777                 /* After displaying Saturday, end the row */
 778                 if ((i % 7) == 6) {
 779                         wc_printf("</td></tr></table>\n");
 780                 }
 781
 782                 thetime += (time_t)86400;               /* ahead 24 hours */
 783         }
 784
 785         wc_printf("</table>"                    /* end of inner table */
 786                 "</td></tr></table>"            /* end of outer table */
 787                 "</div>\n");
 788 }
 789
 790 /*
 791  * Calendar week view -- not implemented yet, this is a stub function
 792  */
 793 void calendar_week_view(int year, int month, int day) {
 794         wc_printf("<center><i>week view FIXME</i></center><br />\n");
 795 }
 796
 797
 798 /*
 799  * display one day
 800  * Display events for a particular hour of a particular day.
 801  * (Specify hour < 0 to show "all day" events)
 802  *
 803  * dstart and dend indicate which hours our "daytime" begins and end
 804  */
 805 void calendar_day_view_display_events(time_t thetime,
 806         int year,
 807         int month,
 808         int day,
 809         int notime_events,
 810         int dstart,
 811         int dend)
 812 {
 813         long hklen;
 814         const char *HashKey;
 815         void *vCal;
 816         HashPos *Pos;
 817         icalproperty *p = NULL;
 818         icalproperty *q = NULL;
 819         time_t event_tt;
 820         time_t event_tte;
 821         struct tm event_te;
 822         struct tm event_tm;
 823         int show_event = 0;
 824         int all_day_event = 0;
 825         int ongoing_event = 0;
 826         wcsession *WCC = WC;
 827         disp_cal *Cal;
 828         struct icaltimetype t;
 829         struct icaltimetype end_t;
 830         struct icaltimetype today_start_t;
 831         struct icaltimetype today_end_t;
 832         struct icaltimetype today_t;
 833         struct tm starting_tm;
 834         struct tm ending_tm;
 835         int top = 0;
 836         int bottom = 0;
 837         int gap = 1;
 838         int startmin = 0;
 839         int diffmin = 0;
 840         int endmin = 0;
 841
 842         char buf[256];
 843
 844         if (GetCount(WCC->disp_cal_items) == 0) {
 845                 /* nothing to display */
 846                 return;
 847         }
 848
 849         /* Create an imaginary event which spans the current day.  Any events which
 850          * overlap with this one take place at least partially in this day.
 851          */
 852         memset(&starting_tm, 0, sizeof(struct tm));
 853         starting_tm.tm_year = year - 1900;
 854         starting_tm.tm_mon = month - 1;
 855         starting_tm.tm_mday = day;
 856         starting_tm.tm_hour = 0;
 857         starting_tm.tm_min = 0;
 858         today_start_t = icaltime_from_timet_with_zone(mktime(&starting_tm), 0, icaltimezone_get_utc_timezone());
 859         today_start_t.is_utc = 1;
 860
 861         memset(&ending_tm, 0, sizeof(struct tm));
 862         ending_tm.tm_year = year - 1900;
 863         ending_tm.tm_mon = month - 1;
 864         ending_tm.tm_mday = day;
 865         ending_tm.tm_hour = 23;
 866         ending_tm.tm_min = 59;
 867         today_end_t = icaltime_from_timet_with_zone(mktime(&ending_tm), 0, icaltimezone_get_utc_timezone());
 868         today_end_t.is_utc = 1;
 869
 870         /*
 871          * Create another one without caring about the timezone for all day events.
 872          */
 873         today_t = icaltime_null_date();
 874         today_t.year = year;
 875         today_t.month = month;
 876         today_t.day = day;
 877
 878         /* Now loop through our list of events to see which ones occur today.
 879          */
 880         Pos = GetNewHashPos(WCC->disp_cal_items, 0);
 881         while (GetNextHashPos(WCC->disp_cal_items, Pos, &hklen, &HashKey, &vCal)) {
 882                 Cal = (disp_cal*)vCal;
 883
 884                 all_day_event = 0;
 885                 ongoing_event=0;
 886
 887                 q = icalcomponent_get_first_property(Cal->cal, ICAL_DTSTART_PROPERTY);
 888                 if (q != NULL) {
 889                         t = icalproperty_get_dtstart(q);
 890                         event_tt = icaltime_as_timet(t);
 891                         localtime_r(&event_tt, &event_te);
 892                 }
 893                 else {
 894                         memset(&t, 0, sizeof t);
 895                 }
 896
 897                 if (t.is_date) all_day_event = 1;
 898
 899                 q = icalcomponent_get_first_property(Cal->cal, ICAL_DTEND_PROPERTY);
 900                 if (q != NULL) {
 901                         end_t = icalproperty_get_dtend(q);
 902                 }
 903                 else {
 904                         /* no end given means end = start */
 905                         memcpy(&end_t, &t, sizeof(struct icaltimetype));
 906                 }
 907
 908                 if (all_day_event)
 909                 {
 910                         show_event = ical_ctdl_is_overlap(t, end_t, today_t, icaltime_null_time());
 911                         if (icaltime_compare(t, end_t)) {
 912                                 /*
 913                                  * the end date is non-inclusive so adjust it by one
 914                                  * day because our test is inclusive, note that a day is
 915                                  * not to much because we are talking about all day
 916                                  * events
 917                                  */
 918                                 icaltime_adjust(&end_t, -1, 0, 0, 0);
 919                         }
 920                 }
 921                 else
 922                 {
 923                         show_event = ical_ctdl_is_overlap(t, end_t, today_start_t, today_end_t);
 924                 }
 925
 926                 event_tte = icaltime_as_timet(end_t);
 927                 localtime_r(&event_tte, &event_tm);
 928
 929                 /* If we determined that this event occurs today, then display it.
 930                  */
 931                 p = icalcomponent_get_first_property(Cal->cal,ICAL_SUMMARY_PROPERTY);
 932                 if (p == NULL) {
 933                         p = icalproperty_new_summary(_("Untitled Event"));
 934                         icalcomponent_add_property(Cal->cal, p);
 935                 }
 936
 937                 if ((show_event) && (p != NULL)) {
 938
 939                         if ((event_te.tm_mday != day) || (event_tm.tm_mday != day)) ongoing_event = 1;
 940
 941                         if (all_day_event && notime_events)
 942                         {
 943                                 wc_printf("<li class=\"event_framed%s\"> "
 944                                         "<a href=\"display_edit_event?"
 945                                         "msgnum=%ld?calview=day?year=%d?month=%d?day=%d\" "
 946                                         " class=\"event_title\" "
 947                                         " btt_tooltext=\"",
 948                                         (Cal->unread)?"_unread":"_read",
 949                                         Cal->cal_msgnum, year, month, day);
 950                                 wc_printf("<i>%s</i><br />",      _("All day event"));
 951                                 wc_printf("<i>%s: %s</i><br />",  _("From"), Cal->from);
 952                                 wc_printf("<i>%s</i> ",           _("Summary:"));
 953                                 escputs((char *) icalproperty_get_comment(p));
 954                                 wc_printf("<br />");
 955                                 q = icalcomponent_get_first_property(Cal->cal,ICAL_LOCATION_PROPERTY);
 956                                 if (q) {
 957                                         wc_printf("<i>%s</i> ", _("Location:"));
 958                                         escputs((char *)icalproperty_get_comment(q));
 959                                         wc_printf("<br />");
 960                                 }
 961                                 if (!icaltime_compare(t, end_t)) { /* one day only */
 962                                         webcit_fmt_date(buf, 256, event_tt, DATEFMT_LOCALEDATE);
 963                                         wc_printf("<i>%s</i> %s<br>", _("Date:"), buf);
 964                                 }
 965                                 else {
 966                                         webcit_fmt_date(buf, 256, event_tt, DATEFMT_LOCALEDATE);
 967                                         wc_printf("<i>%s</i> %s<br>", _("Starting date:"), buf);
 968                                         webcit_fmt_date(buf, 256, event_tte, DATEFMT_LOCALEDATE);
 969                                         wc_printf("<i>%s</i> %s<br>", _("Ending date:"), buf);
 970                                 }
 971                                 q = icalcomponent_get_first_property(Cal->cal,ICAL_DESCRIPTION_PROPERTY);
 972                                 if (q) {
 973                                         wc_printf("<i>%s</i> ", _("Notes:"));
 974                                         escputs((char *)icalproperty_get_comment(q));
 975                                         wc_printf("<br />");
 976                                 }
 977                                 wc_printf("\">");
 978                                 escputs((char *) icalproperty_get_comment(p));
 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                                         "btt_tooltext=\"",
 990                                         (Cal->unread)?"_unread":"_read",
 991                                         Cal->cal_msgnum, year, month, day);
 992                                 wc_printf("<i>%s</i><br />",     _("Ongoing event"));
 993                                 wc_printf("<i>%s: %s</i><br />", _("From"), Cal->from);
 994                                 wc_printf("<i>%s</i> ",          _("Summary:"));
 995                                 escputs((char *) icalproperty_get_comment(p));
 996                                 wc_printf("<br />");
 997                                 q = icalcomponent_get_first_property(Cal->cal,ICAL_LOCATION_PROPERTY);
 998                                 if (q) {
 999                                         wc_printf("<i>%s</i> ", _("Location:"));
1000                                         escputs((char *)icalproperty_get_comment(q));
1001                                         wc_printf("<br />");
1002                                                                 }
1003                                 webcit_fmt_date(buf, 256, event_tt, DATEFMT_BRIEF);
1004                                 wc_printf("<i>%s</i> %s<br>", _("Starting date/time:"), buf);
1005                                 webcit_fmt_date(buf, 256, event_tte, DATEFMT_BRIEF);
1006                                 wc_printf("<i>%s</i> %s<br>", _("Ending date/time:"), buf);
1007                                 q = icalcomponent_get_first_property(Cal->cal,ICAL_DESCRIPTION_PROPERTY);
1008                                 if (q) {
1009                                         wc_printf("<i>%s</i> ", _("Notes:"));
1010                                         escputs((char *)icalproperty_get_comment(q));
1011                                         wc_printf("<br />");
1012                                 }
1013                                 wc_printf("\">");
1014                                 escputs((char *) icalproperty_get_comment(p));
1015                                 wc_printf("</a> <span>(");
1016                                 wc_printf(_("Ongoing event"));
1017                                 wc_printf(")</span></li>\n");
1018                         }
1019                         else if (!all_day_event && !notime_events)
1020                         {
1021                                 gap++;
1022
1023                                 if (event_te.tm_mday != day) event_te.tm_hour = 0;
1024                                 if (event_tm.tm_mday != day) event_tm.tm_hour = 24;
1025
1026                                 /* Calculate the location of the top of the box */
1027                                 if (event_te.tm_hour < dstart) {
1028                                         startmin = diffmin = event_te.tm_min / 6;
1029                                         top = (event_te.tm_hour * EXTRATIMELINE) + startmin;
1030                                 }
1031                                 else if ((event_te.tm_hour >= dstart) && (event_te.tm_hour <= dend)) {
1032                                         startmin = diffmin = (event_te.tm_min / 2);
1033                                         top = (dstart * EXTRATIMELINE) + ((event_te.tm_hour - dstart) * TIMELINE) + startmin;
1034                                 }
1035                                 else if (event_te.tm_hour >dend) {
1036                                         startmin = diffmin = event_te.tm_min / 6;
1037                                         top = (dstart * EXTRATIMELINE) + ((dend - dstart - 1) * TIMELINE) + ((event_tm.tm_hour - dend + 1) * EXTRATIMELINE) + startmin ;
1038                                 }
1039                                 else {
1040                                         /* should never get here */
1041                                 }
1042
1043                                 /* Calculate the location of the bottom of the box */
1044                                 if (event_tm.tm_hour < dstart) {
1045                                         endmin = diffmin = event_tm.tm_min / 6;
1046                                         bottom = (event_tm.tm_hour * EXTRATIMELINE) + endmin;
1047                                 }
1048                                 else if ((event_tm.tm_hour >= dstart) && (event_tm.tm_hour <= dend)) {
1049                                         endmin = diffmin = (event_tm.tm_min / 2);
1050                                         bottom = (dstart * EXTRATIMELINE) + ((event_tm.tm_hour - dstart) * TIMELINE) + endmin ;
1051                                 }
1052                                 else if (event_tm.tm_hour >dend) {
1053                                         endmin = diffmin = event_tm.tm_min / 6;
1054                                         bottom = (dstart * EXTRATIMELINE) + ((dend - dstart + 1) * TIMELINE) + ((event_tm.tm_hour - dend - 1) * EXTRATIMELINE) + endmin;
1055                                 }
1056                                 else {
1057                                         /* should never get here */
1058                                 }
1059
1060                                 wc_printf("<dd  class=\"event_framed%s\" "
1061                                         "style=\"position: absolute; "
1062                                         "top:%dpx; left:%dpx; "
1063                                         "height:%dpx; \" >",
1064                                         (Cal->unread)?"_unread":"_read",
1065                                         top, (gap * 40), (bottom-top)
1066                                         );
1067                                 wc_printf("<a href=\"display_edit_event?"
1068                                         "msgnum=%ld?calview=day?year=%d?month=%d?day=%d?hour=%d\" "
1069                                         "class=\"event_title\" "
1070                                         "btt_tooltext=\"",
1071                                         Cal->cal_msgnum, year, month, day, t.hour);
1072                                 wc_printf("<i>%s: %s</i><br />", _("From"), Cal->from);
1073                                 wc_printf("<i>%s</i> ",          _("Summary:"));
1074                                 escputs((char *) icalproperty_get_comment(p));
1075                                 wc_printf("<br />");
1076                                 q = icalcomponent_get_first_property(Cal->cal,ICAL_LOCATION_PROPERTY);
1077                                 if (q) {
1078                                         wc_printf("<i>%s</i> ", _("Location:"));
1079                                         escputs((char *)icalproperty_get_comment(q));
1080                                         wc_printf("<br />");
1081                                                                 }
1082                                 if (!icaltime_compare(t, end_t)) { /* one day only */
1083                                         webcit_fmt_date(buf, 256, event_tt, DATEFMT_BRIEF);
1084                                         wc_printf("<i>%s</i> %s<br>", _("Date/time:"), buf);
1085                                 }
1086                                 else {
1087                                         webcit_fmt_date(buf, 256, event_tt, DATEFMT_BRIEF);
1088                                         wc_printf("<i>%s</i> %s<br>", _("Starting date/time:"), buf);
1089                                         webcit_fmt_date(buf, 256, event_tte, DATEFMT_BRIEF);
1090                                         wc_printf("<i>%s</i> %s<br>", _("Ending date/time:"), buf);
1091                                 }
1092                                 q = icalcomponent_get_first_property(Cal->cal,ICAL_DESCRIPTION_PROPERTY);
1093                                 if (q) {
1094                                         wc_printf("<i>%s</i> ", _("Notes:"));
1095                                         escputs((char *)icalproperty_get_comment(q));
1096                                         wc_printf("<br />");
1097                                 }
1098                                 wc_printf("\">");
1099
1100                                 escputs((char *) icalproperty_get_comment(p));
1101                                 wc_printf("</a></dd>\n");
1102                         }
1103                 }
1104         }
1105         DeleteHashPos(&Pos);
1106 }
1107
1108 /*
1109  * view one day
1110  */
1111 void calendar_day_view(int year, int month, int day) {
1112         int hour;
1113         struct icaltimetype today, yesterday, tomorrow;
1114         long daystart;
1115         long dayend;
1116         struct tm d_tm;
1117         char d_str[160];
1118         int time_format;
1119         time_t today_t;
1120         int timeline = TIMELINE;
1121         int extratimeline = EXTRATIMELINE;
1122         int gap = 0;
1123         int hourlabel;
1124         int extrahourlabel;
1125
1126         time_format = get_time_format_cached ();
1127         get_pref_long("daystart", &daystart, 8);
1128         get_pref_long("dayend", &dayend, 17);
1129
1130         /* when loading daystart/dayend, replace missing, corrupt, or impossible values with defaults */
1131         if ((daystart < 0) || (dayend < 2) || (daystart >= 23) || (dayend > 23) || (dayend <= daystart)) {
1132                 daystart = 9;
1133                 dayend = 17;
1134         }
1135
1136         /* Today's date */
1137         memset(&d_tm, 0, sizeof d_tm);
1138         d_tm.tm_year = year - 1900;
1139         d_tm.tm_mon = month - 1;
1140         d_tm.tm_mday = day;
1141         today_t = mktime(&d_tm);
1142
1143         /* Figure out the dates for "yesterday" and "tomorrow" links */
1144
1145         memset(&today, 0, sizeof(struct icaltimetype));
1146         today.year = year;
1147         today.month = month;
1148         today.day = day;
1149         today.is_date = 1;
1150
1151         memcpy(&yesterday, &today, sizeof(struct icaltimetype));
1152         --yesterday.day;
1153         yesterday = icaltime_normalize(yesterday);
1154
1155         memcpy(&tomorrow, &today, sizeof(struct icaltimetype));
1156         ++tomorrow.day;
1157         tomorrow = icaltime_normalize(tomorrow);
1158
1159         wc_printf("<div class=\"fix_scrollbar_bug\">");
1160
1161         /* Inner table (the real one) */
1162         wc_printf("<table class=\"calendar\" id=\"inner_day\"><tr> \n");
1163
1164         /* Innermost cell (contains hours etc.) */
1165         wc_printf("<td class=\"events_of_the_day\" >");
1166         wc_printf("<dl class=\"events\" >");
1167
1168         /* Now the middle of the day... */
1169
1170         extrahourlabel = extratimeline - 2;
1171         hourlabel = extrahourlabel * 150 / 100;
1172         if (hourlabel > (timeline - 2)) hourlabel = timeline - 2;
1173
1174         for (hour = 0; hour < daystart; ++hour) {       /* could do HEIGHT=xx */
1175                 wc_printf("<dt class=\"extrahour\"      "
1176                         "style=\"               "
1177                         "position: absolute;    "
1178                         "top: %dpx; left: 0px;  "
1179                         "height: %dpx;          "
1180                         "font-size: %dpx;       "
1181                         "\" >                   "
1182                         "<a href=\"display_edit_event?msgnum=0"
1183                         "?calview=day?year=%d?month=%d?day=%d?hour=%d?minute=0\">",
1184                         (hour * extratimeline ),
1185                         extratimeline,
1186                         extrahourlabel,
1187                         year, month, day, hour
1188                         );
1189
1190                 if (time_format == WC_TIMEFORMAT_24) {
1191                         wc_printf("%2d:00</a> ", hour);
1192                 }
1193                 else {
1194                         wc_printf("%d:00%s</a> ",
1195                                 ((hour == 0) ? 12 : (hour <= 12 ? hour : hour-12)),
1196                                 (hour < 12 ? "am" : "pm")
1197                                 );
1198                 }
1199
1200                 wc_printf("</dt>");
1201         }
1202
1203         gap = daystart * extratimeline;
1204
1205         for (hour = daystart; hour <= dayend; ++hour) {       /* could do HEIGHT=xx */
1206                 wc_printf("<dt class=\"hour\"     "
1207                         "style=\"               "
1208                         "position: absolute;    "
1209                         "top: %ldpx; left: 0px; "
1210                         "height: %dpx;          "
1211                         "font-size: %dpx;       "
1212                         "\" >                   "
1213                         "<a href=\"display_edit_event?msgnum=0?calview=day"
1214                         "?year=%d?month=%d?day=%d?hour=%d?minute=0\">",
1215                         gap + ((hour - daystart) * timeline ),
1216                         timeline,
1217                         hourlabel,
1218                         year, month, day, hour
1219                         );
1220
1221                 if (time_format == WC_TIMEFORMAT_24) {
1222                         wc_printf("%2d:00</a> ", hour);
1223                 }
1224                 else {
1225                         wc_printf("%d:00%s</a> ",
1226                                 (hour <= 12 ? hour : hour-12),
1227                                 (hour < 12 ? "am" : "pm")
1228                                                 );
1229                 }
1230
1231                 wc_printf("</dt>");
1232         }
1233
1234         gap = gap + ((dayend - daystart + 1) * timeline);
1235
1236         for (hour = (dayend + 1); hour < 24; ++hour) {       /* could do HEIGHT=xx */
1237                 wc_printf("<dt class=\"extrahour\"     "
1238                         "style=\"               "
1239                         "position: absolute;    "
1240                         "top: %ldpx; left: 0px; "
1241                         "height: %dpx;          "
1242                         "font-size: %dpx;       "
1243                         "\" >                   "
1244                         "<a href=\"display_edit_event?msgnum=0?calview=day"
1245                         "?year=%d?month=%d?day=%d?hour=%d?minute=0\">",
1246                         gap + ((hour - dayend - 1) * extratimeline ),
1247                         extratimeline,
1248                         extrahourlabel,
1249                         year, month, day, hour
1250                 );
1251
1252                 if (time_format == WC_TIMEFORMAT_24) {
1253                         wc_printf("%2d:00</a> ", hour);
1254                 }
1255                 else {
1256                         wc_printf("%d:00%s</a> ",
1257                                 (hour <= 12 ? hour : hour-12),
1258                                 (hour < 12 ? "am" : "pm")
1259                         );
1260                 }
1261
1262                 wc_printf("</dt>");
1263         }
1264
1265         /* Display events with start and end times on this day */
1266         calendar_day_view_display_events(today_t, year, month, day, 0, daystart, dayend);
1267
1268         wc_printf("</dl>");
1269         wc_printf("</td>");                     /* end of innermost table */
1270
1271         /* Display extra events (start/end times not present or not today) in the middle column */
1272         wc_printf("<td class=\"extra_events\">");
1273
1274         wc_printf("<ul>");
1275
1276         /* Display all-day events */
1277         calendar_day_view_display_events(today_t, year, month, day, 1, daystart, dayend);
1278
1279         wc_printf("</ul>");
1280
1281         wc_printf("</td>");     /* end extra on the middle */
1282
1283         wc_printf("<td width=20%% align=center valign=top>");   /* begin stuff-on-the-right */
1284
1285         /* Begin todays-date-with-left-and-right-arrows */
1286         wc_printf("<table border=0 width=100%% "
1287                 "cellspacing=0 cellpadding=0 bgcolor=\"#FFFFFF\">\n");
1288         wc_printf("<tr>");
1289
1290         /* Left arrow */
1291         wc_printf("<td align=center>");
1292         wc_printf("<a href=\"readfwd?calview=day?year=%d?month=%d?day=%d\">",
1293                 yesterday.year, yesterday.month, yesterday.day);
1294         wc_printf("<img align=middle src=\"static/prevdate_32x.gif\" border=0></A>");
1295         wc_printf("</td>");
1296
1297         wc_strftime(d_str, sizeof d_str,
1298                 "<td align=center>"
1299                 "<font size=+2>%A</font><br />"
1300                 "<font size=+2>%B</font><br />"
1301                 "<font size=+3>%d</font><br />"
1302                 "<font size=+2>%Y</font><br />"
1303                 "</td>",
1304                 &d_tm
1305                 );
1306         wc_printf("%s", d_str);
1307
1308         /* Right arrow */
1309         wc_printf("<td align=center>");
1310         wc_printf("<a href=\"readfwd?calview=day?year=%d?month=%d?day=%d\">",
1311                 tomorrow.year, tomorrow.month, tomorrow.day);
1312         wc_printf("<img align=middle src=\"static/nextdate_32x.gif\""
1313                 " border=0></a>\n");
1314         wc_printf("</td>");
1315
1316         wc_printf("</tr></table>\n");
1317         /* End todays-date-with-left-and-right-arrows */
1318
1319         /* Embed a mini month calendar in this space */
1320         wc_printf("<br />\n");
1321         embeddable_mini_calendar(year, month);
1322
1323         wc_printf("</font></center>\n");
1324
1325         wc_printf("</td></tr>");                        /* end stuff-on-the-right */
1326
1327         wc_printf("</table>"                    /* end of inner table */
1328                 "</div>");
1329
1330         StrBufAppendPrintf(WC->trailing_javascript,
1331                 " setTimeout(\"btt_enableTooltips('inner_day')\", 1);   \n"
1332         );
1333 }
1334
1335
1336 /*
1337  * Display today's events.  Returns the number of items displayed.
1338  */
1339 int calendar_summary_view(void) {
1340         long hklen;
1341         const char *HashKey;
1342         void *vCal;
1343         HashPos *Pos;
1344         disp_cal *Cal;
1345         icalproperty *p;
1346         struct icaltimetype t;
1347         time_t event_tt;
1348         struct tm event_tm;
1349         struct tm today_tm;
1350         time_t now;
1351         int all_day_event = 0;
1352         char timestring[SIZ];
1353         wcsession *WCC = WC;
1354         int num_displayed = 0;
1355
1356         if (GetCount(WC->disp_cal_items) == 0) {
1357                 return(0);
1358         }
1359
1360         now = time(NULL);
1361         localtime_r(&now, &today_tm);
1362
1363         Pos = GetNewHashPos(WCC->disp_cal_items, 0);
1364         while (GetNextHashPos(WCC->disp_cal_items, Pos, &hklen, &HashKey, &vCal)) {
1365                 Cal = (disp_cal*)vCal;
1366                 p = icalcomponent_get_first_property(Cal->cal, ICAL_DTSTART_PROPERTY);
1367                 if (p != NULL) {
1368                         t = icalproperty_get_dtstart(p);
1369                         event_tt = icaltime_as_timet(t);
1370                         if (t.is_date) {
1371                                 all_day_event = 1;
1372                         }
1373                         else {
1374                                 all_day_event = 0;
1375                         }
1376                         fmt_time(timestring, SIZ, event_tt);
1377
1378                         if (all_day_event) {
1379                                 gmtime_r(&event_tt, &event_tm);
1380                         }
1381                         else {
1382                                 localtime_r(&event_tt, &event_tm);
1383                         }
1384
1385                         if ( (event_tm.tm_year == today_tm.tm_year)
1386                                 && (event_tm.tm_mon == today_tm.tm_mon)
1387                                 && (event_tm.tm_mday == today_tm.tm_mday)
1388                         ) {
1389
1390                                 p = icalcomponent_get_first_property(Cal->cal, ICAL_SUMMARY_PROPERTY);
1391                                 if (p == NULL) {
1392                                         p = icalproperty_new_summary(_("Untitled Task"));
1393                                         icalcomponent_add_property(Cal->cal, p);
1394                                 }
1395                                 if (p != NULL)
1396                                 {
1397                                         if (WCC->CurRoom.view == VIEW_TASKS) {
1398                                                 wc_printf("<a href=\"display_edit_task"
1399                                                         "?msgnum=%ld"
1400                                                         "?return_to_summary=1"
1401                                                         "?gotofirst=",
1402                                                         Cal->cal_msgnum
1403                                                 );
1404                                                 escputs(ChrPtr(WCC->CurRoom.name));
1405                                                 wc_printf("\">");
1406                                         }
1407                                         else {
1408                                                 wc_printf("<a href=\"display_edit_event"
1409                                                         "?msgnum=%ld"
1410                                                         "?calview=summary"
1411                                                         "?year=%d"
1412                                                         "?month=%d"
1413                                                         "?day=%d"
1414                                                         "?gotofirst=",
1415                                                         Cal->cal_msgnum,
1416                                                         today_tm.tm_year + 1900,
1417                                                         today_tm.tm_mon + 1,
1418                                                         today_tm.tm_mday
1419                                                 );
1420                                                 escputs(ChrPtr(WCC->CurRoom.name));
1421                                                 wc_printf("\">");
1422                                         }
1423                                         escputs((char *) icalproperty_get_comment(p));
1424                                         if (!all_day_event) {
1425                                                 wc_printf(" (%s)", timestring);
1426                                         }
1427                                         wc_printf("</a><br />\n");
1428                                         ++num_displayed;
1429                                 }
1430                         }
1431                 }
1432         }
1433         DeleteHashPos(&Pos);
1434         DeleteHash(&WC->disp_cal_items);
1435         return(num_displayed);
1436 }
1437
1438 /*
1439  * Parse the URL variables in order to determine the scope and display of a calendar view
1440  */
1441 int calendar_GetParamsGetServerCall(SharedMessageStatus *Stat,
1442                                     void **ViewSpecific,
1443                                     long oper,
1444                                     char *cmd,
1445                                     long len)
1446 {
1447         wcsession *WCC = WC;
1448         calview *c;
1449         time_t now;
1450         struct tm tm;
1451         char cv[32];
1452
1453         int span = 3888000;
1454
1455         c = (calview*) malloc(sizeof(calview));
1456         memset(c, 0, sizeof(calview));
1457         *ViewSpecific = (void*)c;
1458
1459         Stat->load_seen = 1;
1460         strcpy(cmd, "MSGS ALL");
1461         Stat->maxmsgs = 32767;
1462
1463         /* In case no date was specified, go with today */
1464         now = time(NULL);
1465         localtime_r(&now, &tm);
1466         c->year = tm.tm_year + 1900;
1467         c->month = tm.tm_mon + 1;
1468         c->day = tm.tm_mday;
1469
1470         /* Now see if a date was specified */
1471         if (havebstr("year")) c->year = ibstr("year");
1472         if (havebstr("month")) c->month = ibstr("month");
1473         if (havebstr("day")) c->day = ibstr("day");
1474
1475         /* How would you like that cooked? */
1476         if (havebstr("calview")) {
1477                 strcpy(cv, bstr("calview"));
1478         }
1479         else {
1480                 strcpy(cv, "month");
1481         }
1482
1483         /* Display the selected view */
1484         if (!strcasecmp(cv, "day")) {
1485                 c->view = calview_day;
1486         }
1487         else if (!strcasecmp(cv, "week")) {
1488                 c->view = calview_week;
1489         }
1490         else if (!strcasecmp(cv, "summary")) {  /* shouldn't ever happen, but just in case */
1491                 c->view = calview_day;
1492         }
1493         else {
1494                 if (WCC->CurRoom.view == VIEW_CALBRIEF) {
1495                         c->view = calview_brief;
1496                 }
1497                 else {
1498                         c->view = calview_month;
1499                 }
1500         }
1501
1502         /* Now try and set the lower and upper bounds so that we don't
1503          * burn too many cpu cycles parsing data way in the past or future
1504          */
1505
1506         tm.tm_year = c->year - 1900;
1507         tm.tm_mon = c->month - 1;
1508         tm.tm_mday = c->day;
1509         now = mktime(&tm);
1510
1511         if (c->view == calview_month)   span = 3888000;
1512         if (c->view == calview_brief)   span = 3888000;
1513         if (c->view == calview_week)    span = 604800;
1514         if (c->view == calview_day)     span = 86400;
1515         if (c->view == calview_summary) span = 86400;
1516
1517         c->lower_bound = now - span;
1518         c->upper_bound = now + span;
1519         return 200;
1520 }
1521
1522
1523
1524 /*
1525  * Render a calendar view from data previously loaded into memory
1526  */
1527 int calendar_RenderView_or_Tail(SharedMessageStatus *Stat,
1528                                 void **ViewSpecific,
1529                                 long oper)
1530 {
1531         wcsession *WCC = WC;
1532         calview *c = (calview*) *ViewSpecific;
1533
1534         if (c->view == calview_day) {
1535                 calendar_day_view(c->year, c->month, c->day);
1536         }
1537         else if (c->view == calview_week) {
1538                 calendar_week_view(c->year, c->month, c->day);
1539         }
1540         else {
1541                 if (WCC->CurRoom.view == VIEW_CALBRIEF) {
1542                         calendar_brief_month_view(c->year, c->month, c->day);
1543                 }
1544                 else {
1545                         calendar_month_view(c->year, c->month, c->day);
1546                 }
1547         }
1548
1549         /* Free the in-memory list of calendar items */
1550         DeleteHash(&WC->disp_cal_items);
1551         return 0;
1552 }
1553
1554
1555
1556
1557