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         wprintf("<div class=\"mini_calendar\" id=\"%s\">\n", div_id);
  65
  66         /* Previous month link */
  67         localtime_r(&previous_month, &tm);
  68         wprintf("<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         wprintf("&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         wprintf("<a href=\"javascript:minical_change_month(%d,%d);\">&raquo;</a>",
  81                 (int)(tm.tm_year)+1900, tm.tm_mon + 1);
  82
  83         wprintf("<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                 wprintf("<th>%c</th>", colheader_label[0]);
  91
  92         }
  93         wprintf("</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                                 wprintf("<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                                 wprintf("<td><a href=\"%s\">%d</a></td>", url, tm.tm_mday);
 111                         }
 112                         else {
 113                                 wprintf("<td> </td>");
 114                         }
 115
 116                         /* After displaying one week, end the row */
 117                         if ((i % 7) == 6) {
 118                                 wprintf("</tr>\n");
 119                         }
 120
 121                 }
 122
 123                 thetime += (time_t)86400;               /* ahead 24 hours */
 124         }
 125
 126         wprintf("</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                 wprintf("<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                                         wprintf("<table border=0 cellpadding=2><TR>"
 257                                                 "<td bgcolor=\"#CCCCDD\">"
 258                                                 );
 259                                 }
 260
 261                                 wprintf("<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                                 wprintf("<i>%s: %s</i><br />", _("From"), Cal->from);
 271                                 wprintf("<i>%s</i> ",          _("Summary:"));
 272                                 escputs((char *)icalproperty_get_comment(p));
 273                                 wprintf("<br />");
 274
 275                                 q = icalcomponent_get_first_property(
 276                                         Cal->cal,
 277                                         ICAL_LOCATION_PROPERTY);
 278                                 if (q) {
 279                                         wprintf("<i>%s</i> ", _("Location:"));
 280                                         escputs((char *)icalproperty_get_comment(q));
 281                                         wprintf("<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                                                                 wprintf("<i>%s</i> %s<br>",
 324                                                                         _("Date:"), buf);
 325                                                         }
 326                                                         else {
 327                                                                 wprintf("<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                                                                 wprintf("<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                                                                 wprintf("<i>%s</i> %s<br>",
 342                                                                         _("Date/time:"), buf);
 343                                                         }
 344                                                         else {
 345                                                                 wprintf("<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                                                                 wprintf("<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                                         wprintf("<i>%s</i> ", _("Notes:"));
 360                                         escputs((char *)icalproperty_get_comment(q));
 361                                         wprintf("<br />");
 362                                 }
 363
 364                                 wprintf("\">");
 365                                 escputs((char *)
 366                                         icalproperty_get_comment(p));
 367                                 wprintf("</a></font><br />\n");
 368
 369                                 if (all_day_event) {
 370                                         wprintf("</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                                 wprintf("<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                                 wprintf("</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         time_t thetime;
 505         int i;
 506         time_t previous_month;
 507         time_t next_month;
 508         time_t colheader_time;
 509         struct tm colheader_tm;
 510         char colheader_label[32];
 511         long weekstart = 0;
 512
 513         /*
 514          * Determine what day to start.  If an impossible value is found, start on Sunday.
 515          */
 516         get_pref_long("weekstart", &weekstart, 17);
 517         if (weekstart > 6) weekstart = 0;
 518
 519         /*
 520          * Now back up to the 1st of the month...
 521          */
 522         memset(&starting_tm, 0, sizeof(struct tm));
 523
 524         starting_tm.tm_year = year - 1900;
 525         starting_tm.tm_mon = month - 1;
 526         starting_tm.tm_mday = day;
 527         thetime = mktime(&starting_tm);
 528
 529         memcpy(&tm, &starting_tm, sizeof(struct tm));
 530         while (tm.tm_mday != 1) {
 531                 thetime = thetime - (time_t)86400;      /* go back 24 hours */
 532                 localtime_r(&thetime, &tm);
 533         }
 534
 535         /* Determine previous and next months ... for links */
 536         previous_month = thetime - (time_t)864000L;     /* back 10 days */
 537         next_month = thetime + (time_t)(31L * 86400L);  /* ahead 31 days */
 538
 539         /* Now back up until we're on the user's preferred start day */
 540         localtime_r(&thetime, &tm);
 541         while (tm.tm_wday != weekstart) {
 542                 thetime = thetime - (time_t)86400;      /* go back 24 hours */
 543                 localtime_r(&thetime, &tm);
 544         }
 545
 546         /* Outer table (to get the background color) */
 547         wprintf("<div class=\"fix_scrollbar_bug\">"
 548                 "<table class=\"calendar\"> \n <tr><td>");
 549
 550         wprintf("<table width=100%% border=0 cellpadding=0 cellspacing=0><tr>\n");
 551
 552         wprintf("<td align=center>");
 553
 554         localtime_r(&previous_month, &tm);
 555         wprintf("<a href=\"readfwd?calview=month?year=%d?month=%d?day=1\">",
 556                 (int)(tm.tm_year)+1900, tm.tm_mon + 1);
 557         wprintf("<img align=middle src=\"static/prevdate_32x.gif\" border=0></A>\n");
 558
 559         wc_strftime(colheader_label, sizeof colheader_label, "%B", &starting_tm);
 560         wprintf("&nbsp;&nbsp;"
 561                 "<font size=+1 color=\"#FFFFFF\">"
 562                 "%s %d"
 563                 "</font>"
 564                 "&nbsp;&nbsp;", colheader_label, year);
 565
 566         localtime_r(&next_month, &tm);
 567         wprintf("<a href=\"readfwd?calview=month?year=%d?month=%d?day=1\">",
 568                 (int)(tm.tm_year)+1900, tm.tm_mon + 1);
 569         wprintf("<img align=middle src=\"static/nextdate_32x.gif\" border=0></A>\n");
 570
 571         wprintf("</td></tr></table>\n");
 572
 573         /* Inner table (the real one) */
 574         wprintf("<table width=100%% border=0 cellpadding=1 cellspacing=1 "
 575                 "bgcolor=#204B78 id=\"inner_month\"><tr>");
 576         colheader_time = thetime;
 577         for (i=0; i<7; ++i) {
 578                 colheader_time = thetime + (i * 86400) ;
 579                 localtime_r(&colheader_time, &colheader_tm);
 580                 wc_strftime(colheader_label, sizeof colheader_label, "%A", &colheader_tm);
 581                 wprintf("<th align=center width=14%%>"
 582                         "<font color=\"#FFFFFF\">%s</font></th>", colheader_label);
 583
 584         }
 585         wprintf("</tr>\n");
 586
 587
 588         /* Now do 35 or 42 days */
 589         localtime_r(&thetime, &tm);
 590         for (i = 0; i<42; ++i) {
 591
 592                 /* Before displaying the first day of the week, start a new row */
 593                 if ((i % 7) == 0) {
 594                         wprintf("<tr>");
 595                 }
 596
 597                 wprintf("<td class=\"cal%s\"><div class=\"day\">",
 598                         ((tm.tm_mon != month-1) ? "out" :
 599                                 ((tm.tm_wday==0 || tm.tm_wday==6) ? "weekend" :
 600                                         "day"))
 601                         );
 602                 if ((i==0) || (tm.tm_mday == 1)) {
 603                         wc_strftime(colheader_label, sizeof colheader_label, "%B", &tm);
 604                         wprintf("%s ", colheader_label);
 605                 }
 606                 wprintf("<a href=\"readfwd?calview=day?year=%d?month=%d?day=%d\">"
 607                         "%d</a></div>",
 608                         tm.tm_year + 1900,
 609                         tm.tm_mon + 1,
 610                         tm.tm_mday,
 611                         tm.tm_mday);
 612
 613                 /* put the data here, stupid */
 614                 calendar_month_view_display_events(
 615                         tm.tm_year + 1900,
 616                         tm.tm_mon + 1,
 617                         tm.tm_mday
 618                         );
 619
 620                 wprintf("</td>");
 621
 622                 /* After displaying the last day of the week, end the row */
 623                 if ((i % 7) == 6) {
 624                         wprintf("</tr>\n");
 625                 }
 626
 627                 thetime += (time_t)86400;               /* ahead 24 hours */
 628                 localtime_r(&thetime, &tm);
 629
 630                 if ( ((i % 7) == 6) && (tm.tm_mon != month-1) && (tm.tm_mday < 15) ) {
 631                         i = 100;        /* break out of the loop */
 632                 }
 633         }
 634
 635         wprintf("</table>"                      /* end of inner table */
 636                 "</td></tr></table>"            /* end of outer table */
 637                 "</div>\n");
 638
 639         /*
 640          * Initialize the bubble tooltips.
 641          *
 642          * Yes, this is as stupid as it looks.  Instead of just making the call
 643          * to btt_enableTooltips() straight away, we have to create a timer event
 644          * and let it initialize as an event after 1 millisecond.  This is to
 645          * work around a bug in Internet Explorer that causes it to crash if we
 646          * manipulate the innerHTML of various DOM nodes while the page is still
 647          * being rendered.  See http://www.shaftek.org/blog/archives/000212.html
 648          * for more information.
 649          */
 650         StrBufAppendPrintf(WC->trailing_javascript,
 651                 " setTimeout(\"btt_enableTooltips('inner_month')\", 1); \n"
 652         );
 653 }
 654
 655 /*
 656  * view one month. brief view
 657  */
 658 void calendar_brief_month_view(int year, int month, int day) {
 659         struct tm starting_tm;
 660         struct tm tm;
 661         time_t thetime;
 662         int i;
 663         time_t previous_month;
 664         time_t next_month;
 665         char month_label[32];
 666
 667         /* Determine what day to start.
 668          * First, back up to the 1st of the month...
 669          */
 670         memset(&starting_tm, 0, sizeof(struct tm));
 671         starting_tm.tm_year = year - 1900;
 672         starting_tm.tm_mon = month - 1;
 673         starting_tm.tm_mday = day;
 674         thetime = mktime(&starting_tm);
 675
 676         memcpy(&tm, &starting_tm, sizeof(struct tm));
 677         while (tm.tm_mday != 1) {
 678                 thetime = thetime - (time_t)86400;      /* go back 24 hours */
 679                 localtime_r(&thetime, &tm);
 680         }
 681
 682         /* Determine previous and next months ... for links */
 683         previous_month = thetime - (time_t)864000L;     /* back 10 days */
 684         next_month = thetime + (time_t)(31L * 86400L);  /* ahead 31 days */
 685
 686         /* Now back up until we're on a Sunday */
 687         localtime_r(&thetime, &tm);
 688         while (tm.tm_wday != 0) {
 689                 thetime = thetime - (time_t)86400;      /* go back 24 hours */
 690                 localtime_r(&thetime, &tm);
 691         }
 692
 693         /* Outer table (to get the background color) */
 694         wprintf("<div class=\"fix_scrollbar_bug\">"
 695                 "<table width=100%% border=0 cellpadding=0 cellspacing=0 "
 696                 "bgcolor=#204B78><TR><TD>\n");
 697
 698         wprintf("<table width=100%% border=0 cellpadding=0 cellspacing=0><tr>\n");
 699
 700         wprintf("<td align=center>");
 701
 702         localtime_r(&previous_month, &tm);
 703         wprintf("<a href=\"readfwd?calview=month?year=%d?month=%d?day=1\">",
 704                 (int)(tm.tm_year)+1900, tm.tm_mon + 1);
 705         wprintf("<img align=middle src=\"static/prevdate_32x.gif\" border=0></A>\n");
 706
 707         wc_strftime(month_label, sizeof month_label, "%B", &tm);
 708         wprintf("&nbsp;&nbsp;"
 709                 "<font size=+1 color=\"#FFFFFF\">"
 710                 "%s %d"
 711                 "</font>"
 712                 "&nbsp;&nbsp;", month_label, year);
 713
 714         localtime_r(&next_month, &tm);
 715         wprintf("<a href=\"readfwd?calview=month?year=%d?month=%d?day=1\">",
 716                 (int)(tm.tm_year)+1900, tm.tm_mon + 1);
 717         wprintf("<img align=middle src=\"static/nextdate_32x.gif\" border=0></A>\n");
 718
 719         wprintf("</td></tr></table>\n");
 720
 721         /* Inner table (the real one) */
 722         wprintf("<table width=100%% border=0 cellpadding=1 cellspacing=1 "
 723                 "bgcolor=#EEEECC><TR>");
 724         wprintf("</tr>\n");
 725         wprintf("<tr><td colspan=\"100%%\">\n");
 726
 727         /* Now do 35 days */
 728         for (i = 0; i < 35; ++i) {
 729                 char weeknumber[255];
 730                 char weekday_name[32];
 731                 char *daycolor;
 732                 localtime_r(&thetime, &tm);
 733
 734
 735                 /* Before displaying Sunday, start a new CELL */
 736                 if ((i % 7) == 0) {
 737                         wc_strftime(&weeknumber[0], sizeof(weeknumber), "%U", &tm);
 738                         wprintf("<table border='0' bgcolor=\"#EEEECC\" width='100%%'> <tr><th colspan='4'>%s %s</th></tr>"
 739                                 "   <tr><td>%s</td><td width=70%%>%s</td><td>%s</td><td>%s</td></tr>\n",
 740                                 _("Week"),
 741                                 weeknumber,
 742                                 _("Hours"),
 743                                 _("Subject"),
 744                                 _("Start"),
 745                                 _("End")
 746                                 );
 747                 }
 748
 749                 daycolor=((tm.tm_mon != month-1) ? "DDDDDD" :
 750                         ((tm.tm_wday==0 || tm.tm_wday==6) ? "EEEECC" :
 751                                 "FFFFFF"));
 752
 753                 /* Day Header */
 754                 wc_strftime(weekday_name, sizeof weekday_name, "%A", &tm);
 755                 wprintf("<tr><td bgcolor='%s' colspan='1' align='left'> %s,%i."
 756                         "</td><td bgcolor='%s' colspan='3'><hr></td></tr>\n",
 757                         daycolor,
 758                         weekday_name,tm.tm_mday,
 759                         daycolor);
 760
 761                 /* put the data of one day  here, stupid */
 762                 calendar_month_view_brief_events(thetime, daycolor);
 763
 764
 765                 /* After displaying Saturday, end the row */
 766                 if ((i % 7) == 6) {
 767                         wprintf("</td></tr></table>\n");
 768                 }
 769
 770                 thetime += (time_t)86400;               /* ahead 24 hours */
 771         }
 772
 773         wprintf("</table>"                      /* end of inner table */
 774                 "</td></tr></table>"            /* end of outer table */
 775                 "</div>\n");
 776 }
 777
 778 /*
 779  * Calendar week view -- not implemented yet, this is a stub function
 780  */
 781 void calendar_week_view(int year, int month, int day) {
 782         wprintf("<center><i>week view FIXME</i></center><br />\n");
 783 }
 784
 785
 786 /*
 787  * display one day
 788  * Display events for a particular hour of a particular day.
 789  * (Specify hour < 0 to show "all day" events)
 790  *
 791  * dstart and dend indicate which hours our "daytime" begins and end
 792  */
 793 void calendar_day_view_display_events(time_t thetime,
 794         int year,
 795         int month,
 796         int day,
 797         int notime_events,
 798         int dstart,
 799         int dend)
 800 {
 801         long hklen;
 802         const char *HashKey;
 803         void *vCal;
 804         HashPos *Pos;
 805         icalproperty *p = NULL;
 806         icalproperty *q = NULL;
 807         time_t event_tt;
 808         time_t event_tte;
 809         struct tm event_te;
 810         struct tm event_tm;
 811         int show_event = 0;
 812         int all_day_event = 0;
 813         int ongoing_event = 0;
 814         wcsession *WCC = WC;
 815         disp_cal *Cal;
 816         struct icaltimetype t;
 817         struct icaltimetype end_t;
 818         struct icaltimetype today_start_t;
 819         struct icaltimetype today_end_t;
 820         struct icaltimetype today_t;
 821         struct tm starting_tm;
 822         struct tm ending_tm;
 823         int top = 0;
 824         int bottom = 0;
 825         int gap = 1;
 826         int startmin = 0;
 827         int diffmin = 0;
 828         int endmin = 0;
 829
 830         char buf[256];
 831
 832         if (GetCount(WCC->disp_cal_items) == 0) {
 833                 /* nothing to display */
 834                 return;
 835         }
 836
 837         /* Create an imaginary event which spans the current day.  Any events which
 838          * overlap with this one take place at least partially in this day.
 839          */
 840         memset(&starting_tm, 0, sizeof(struct tm));
 841         starting_tm.tm_year = year - 1900;
 842         starting_tm.tm_mon = month - 1;
 843         starting_tm.tm_mday = day;
 844         starting_tm.tm_hour = 0;
 845         starting_tm.tm_min = 0;
 846         today_start_t = icaltime_from_timet_with_zone(mktime(&starting_tm), 0, icaltimezone_get_utc_timezone());
 847         today_start_t.is_utc = 1;
 848
 849         memset(&ending_tm, 0, sizeof(struct tm));
 850         ending_tm.tm_year = year - 1900;
 851         ending_tm.tm_mon = month - 1;
 852         ending_tm.tm_mday = day;
 853         ending_tm.tm_hour = 23;
 854         ending_tm.tm_min = 59;
 855         today_end_t = icaltime_from_timet_with_zone(mktime(&ending_tm), 0, icaltimezone_get_utc_timezone());
 856         today_end_t.is_utc = 1;
 857
 858         /*
 859          * Create another one without caring about the timezone for all day events.
 860          */
 861         today_t = icaltime_null_date();
 862         today_t.year = year;
 863         today_t.month = month;
 864         today_t.day = day;
 865
 866         /* Now loop through our list of events to see which ones occur today.
 867          */
 868         Pos = GetNewHashPos(WCC->disp_cal_items, 0);
 869         while (GetNextHashPos(WCC->disp_cal_items, Pos, &hklen, &HashKey, &vCal)) {
 870                 Cal = (disp_cal*)vCal;
 871
 872                 all_day_event = 0;
 873                 ongoing_event=0;
 874
 875                 q = icalcomponent_get_first_property(Cal->cal, ICAL_DTSTART_PROPERTY);
 876                 if (q != NULL) {
 877                         t = icalproperty_get_dtstart(q);
 878                         event_tt = icaltime_as_timet(t);
 879                         localtime_r(&event_tt, &event_te);
 880                 }
 881                 else {
 882                         memset(&t, 0, sizeof t);
 883                 }
 884
 885                 if (t.is_date) all_day_event = 1;
 886
 887                 q = icalcomponent_get_first_property(Cal->cal, ICAL_DTEND_PROPERTY);
 888                 if (q != NULL) {
 889                         end_t = icalproperty_get_dtend(q);
 890                 }
 891                 else {
 892                         /* no end given means end = start */
 893                         memcpy(&end_t, &t, sizeof(struct icaltimetype));
 894                 }
 895
 896                 if (all_day_event)
 897                 {
 898                         show_event = ical_ctdl_is_overlap(t, end_t, today_t, icaltime_null_time());
 899                         if (icaltime_compare(t, end_t)) {
 900                                 /*
 901                                  * the end date is non-inclusive so adjust it by one
 902                                  * day because our test is inclusive, note that a day is
 903                                  * not to much because we are talking about all day
 904                                  * events
 905                                  */
 906                                 icaltime_adjust(&end_t, -1, 0, 0, 0);
 907                         }
 908                 }
 909                 else
 910                 {
 911                         show_event = ical_ctdl_is_overlap(t, end_t, today_start_t, today_end_t);
 912                 }
 913
 914                 event_tte = icaltime_as_timet(end_t);
 915                 localtime_r(&event_tte, &event_tm);
 916
 917                 /* If we determined that this event occurs today, then display it.
 918                  */
 919                 p = icalcomponent_get_first_property(Cal->cal,ICAL_SUMMARY_PROPERTY);
 920                 if (p == NULL) {
 921                         p = icalproperty_new_summary(_("Untitled Event"));
 922                         icalcomponent_add_property(Cal->cal, p);
 923                 }
 924
 925                 if ((show_event) && (p != NULL)) {
 926
 927                         if ((event_te.tm_mday != day) || (event_tm.tm_mday != day)) ongoing_event = 1;
 928
 929                         if (all_day_event && notime_events)
 930                         {
 931                                 wprintf("<li class=\"event_framed%s\"> "
 932                                         "<a href=\"display_edit_event?"
 933                                         "msgnum=%ld?calview=day?year=%d?month=%d?day=%d\" "
 934                                         " class=\"event_title\" "
 935                                         " btt_tooltext=\"",
 936                                         (Cal->unread)?"_unread":"_read",
 937                                         Cal->cal_msgnum, year, month, day);
 938                                 wprintf("<i>%s</i><br />",      _("All day event"));
 939                                 wprintf("<i>%s: %s</i><br />",  _("From"), Cal->from);
 940                                 wprintf("<i>%s</i> ",           _("Summary:"));
 941                                 escputs((char *) icalproperty_get_comment(p));
 942                                 wprintf("<br />");
 943                                 q = icalcomponent_get_first_property(Cal->cal,ICAL_LOCATION_PROPERTY);
 944                                 if (q) {
 945                                         wprintf("<i>%s</i> ", _("Location:"));
 946                                         escputs((char *)icalproperty_get_comment(q));
 947                                         wprintf("<br />");
 948                                 }
 949                                 if (!icaltime_compare(t, end_t)) { /* one day only */
 950                                         webcit_fmt_date(buf, 256, event_tt, DATEFMT_LOCALEDATE);
 951                                         wprintf("<i>%s</i> %s<br>", _("Date:"), buf);
 952                                 }
 953                                 else {
 954                                         webcit_fmt_date(buf, 256, event_tt, DATEFMT_LOCALEDATE);
 955                                         wprintf("<i>%s</i> %s<br>", _("Starting date:"), buf);
 956                                         webcit_fmt_date(buf, 256, event_tte, DATEFMT_LOCALEDATE);
 957                                         wprintf("<i>%s</i> %s<br>", _("Ending date:"), buf);
 958                                 }
 959                                 q = icalcomponent_get_first_property(Cal->cal,ICAL_DESCRIPTION_PROPERTY);
 960                                 if (q) {
 961                                         wprintf("<i>%s</i> ", _("Notes:"));
 962                                         escputs((char *)icalproperty_get_comment(q));
 963                                         wprintf("<br />");
 964                                 }
 965                                 wprintf("\">");
 966                                 escputs((char *) icalproperty_get_comment(p));
 967                                 wprintf("</a> <span>(");
 968                                 wprintf(_("All day event"));
 969                                 wprintf(")</span></li>\n");
 970                         }
 971                         else if (ongoing_event && notime_events)
 972                         {
 973                                 wprintf("<li class=\"event_framed%s\"> "
 974                                         "<a href=\"display_edit_event?"
 975                                         "msgnum=%ld&calview=day?year=%d?month=%d?day=%d\" "
 976                                         " class=\"event_title\" "
 977                                         "btt_tooltext=\"",
 978                                         (Cal->unread)?"_unread":"_read",
 979                                         Cal->cal_msgnum, year, month, day);
 980                                 wprintf("<i>%s</i><br />",     _("Ongoing event"));
 981                                 wprintf("<i>%s: %s</i><br />", _("From"), Cal->from);
 982                                 wprintf("<i>%s</i> ",          _("Summary:"));
 983                                 escputs((char *) icalproperty_get_comment(p));
 984                                 wprintf("<br />");
 985                                 q = icalcomponent_get_first_property(Cal->cal,ICAL_LOCATION_PROPERTY);
 986                                 if (q) {
 987                                         wprintf("<i>%s</i> ", _("Location:"));
 988                                         escputs((char *)icalproperty_get_comment(q));
 989                                         wprintf("<br />");
 990                                                                 }
 991                                 webcit_fmt_date(buf, 256, event_tt, DATEFMT_BRIEF);
 992                                 wprintf("<i>%s</i> %s<br>", _("Starting date/time:"), buf);
 993                                 webcit_fmt_date(buf, 256, event_tte, DATEFMT_BRIEF);
 994                                 wprintf("<i>%s</i> %s<br>", _("Ending date/time:"), buf);
 995                                 q = icalcomponent_get_first_property(Cal->cal,ICAL_DESCRIPTION_PROPERTY);
 996                                 if (q) {
 997                                         wprintf("<i>%s</i> ", _("Notes:"));
 998                                         escputs((char *)icalproperty_get_comment(q));
 999                                         wprintf("<br />");
1000                                 }
1001                                 wprintf("\">");
1002                                 escputs((char *) icalproperty_get_comment(p));
1003                                 wprintf("</a> <span>(");
1004                                 wprintf(_("Ongoing event"));
1005                                 wprintf(")</span></li>\n");
1006                         }
1007                         else if (!all_day_event && !notime_events)
1008                         {
1009                                 gap++;
1010
1011                                 if (event_te.tm_mday != day) event_te.tm_hour = 0;
1012                                 if (event_tm.tm_mday != day) event_tm.tm_hour = 24;
1013
1014                                 /* Calculate the location of the top of the box */
1015                                 if (event_te.tm_hour < dstart) {
1016                                         startmin = diffmin = event_te.tm_min / 6;
1017                                         top = (event_te.tm_hour * EXTRATIMELINE) + startmin;
1018                                 }
1019                                 else if ((event_te.tm_hour >= dstart) && (event_te.tm_hour <= dend)) {
1020                                         startmin = diffmin = (event_te.tm_min / 2);
1021                                         top = (dstart * EXTRATIMELINE) + ((event_te.tm_hour - dstart) * TIMELINE) + startmin;
1022                                 }
1023                                 else if (event_te.tm_hour >dend) {
1024                                         startmin = diffmin = event_te.tm_min / 6;
1025                                         top = (dstart * EXTRATIMELINE) + ((dend - dstart - 1) * TIMELINE) + ((event_tm.tm_hour - dend + 1) * EXTRATIMELINE) + startmin ;
1026                                 }
1027                                 else {
1028                                         /* should never get here */
1029                                 }
1030
1031                                 /* Calculate the location of the bottom of the box */
1032                                 if (event_tm.tm_hour < dstart) {
1033                                         endmin = diffmin = event_tm.tm_min / 6;
1034                                         bottom = (event_tm.tm_hour * EXTRATIMELINE) + endmin;
1035                                 }
1036                                 else if ((event_tm.tm_hour >= dstart) && (event_tm.tm_hour <= dend)) {
1037                                         endmin = diffmin = (event_tm.tm_min / 2);
1038                                         bottom = (dstart * EXTRATIMELINE) + ((event_tm.tm_hour - dstart) * TIMELINE) + endmin ;
1039                                 }
1040                                 else if (event_tm.tm_hour >dend) {
1041                                         endmin = diffmin = event_tm.tm_min / 6;
1042                                         bottom = (dstart * EXTRATIMELINE) + ((dend - dstart + 1) * TIMELINE) + ((event_tm.tm_hour - dend - 1) * EXTRATIMELINE) + endmin;
1043                                 }
1044                                 else {
1045                                         /* should never get here */
1046                                 }
1047
1048                                 wprintf("<dd  class=\"event_framed%s\" "
1049                                         "style=\"position: absolute; "
1050                                         "top:%dpx; left:%dpx; "
1051                                         "height:%dpx; \" >",
1052                                         (Cal->unread)?"_unread":"_read",
1053                                         top, (gap * 40), (bottom-top)
1054                                         );
1055                                 wprintf("<a href=\"display_edit_event?"
1056                                         "msgnum=%ld?calview=day?year=%d?month=%d?day=%d?hour=%d\" "
1057                                         "class=\"event_title\" "
1058                                         "btt_tooltext=\"",
1059                                         Cal->cal_msgnum, year, month, day, t.hour);
1060                                 wprintf("<i>%s: %s</i><br />", _("From"), Cal->from);
1061                                 wprintf("<i>%s</i> ",          _("Summary:"));
1062                                 escputs((char *) icalproperty_get_comment(p));
1063                                 wprintf("<br />");
1064                                 q = icalcomponent_get_first_property(Cal->cal,ICAL_LOCATION_PROPERTY);
1065                                 if (q) {
1066                                         wprintf("<i>%s</i> ", _("Location:"));
1067                                         escputs((char *)icalproperty_get_comment(q));
1068                                         wprintf("<br />");
1069                                                                 }
1070                                 if (!icaltime_compare(t, end_t)) { /* one day only */
1071                                         webcit_fmt_date(buf, 256, event_tt, DATEFMT_BRIEF);
1072                                         wprintf("<i>%s</i> %s<br>", _("Date/time:"), buf);
1073                                 }
1074                                 else {
1075                                         webcit_fmt_date(buf, 256, event_tt, DATEFMT_BRIEF);
1076                                         wprintf("<i>%s</i> %s<br>", _("Starting date/time:"), buf);
1077                                         webcit_fmt_date(buf, 256, event_tte, DATEFMT_BRIEF);
1078                                         wprintf("<i>%s</i> %s<br>", _("Ending date/time:"), buf);
1079                                 }
1080                                 q = icalcomponent_get_first_property(Cal->cal,ICAL_DESCRIPTION_PROPERTY);
1081                                 if (q) {
1082                                         wprintf("<i>%s</i> ", _("Notes:"));
1083                                         escputs((char *)icalproperty_get_comment(q));
1084                                         wprintf("<br />");
1085                                 }
1086                                 wprintf("\">");
1087
1088                                 escputs((char *) icalproperty_get_comment(p));
1089                                 wprintf("</a></dd>\n");
1090                         }
1091                 }
1092         }
1093         DeleteHashPos(&Pos);
1094 }
1095
1096 /*
1097  * view one day
1098  */
1099 void calendar_day_view(int year, int month, int day) {
1100         int hour;
1101         struct icaltimetype today, yesterday, tomorrow;
1102         long daystart;
1103         long dayend;
1104         struct tm d_tm;
1105         char d_str[128];
1106         int time_format;
1107         time_t today_t;
1108         int timeline = TIMELINE;
1109         int extratimeline = EXTRATIMELINE;
1110         int gap = 0;
1111         int hourlabel;
1112         int extrahourlabel;
1113
1114         time_format = get_time_format_cached ();
1115         get_pref_long("daystart", &daystart, 8);
1116         get_pref_long("dayend", &dayend, 17);
1117
1118         /* when loading daystart/dayend, replace missing, corrupt, or impossible values with defaults */
1119         if ((daystart < 0) || (dayend < 2) || (daystart >= 23) || (dayend > 23) || (dayend <= daystart)) {
1120                 daystart = 9;
1121                 dayend = 17;
1122         }
1123
1124         /* Today's date */
1125         memset(&d_tm, 0, sizeof d_tm);
1126         d_tm.tm_year = year - 1900;
1127         d_tm.tm_mon = month - 1;
1128         d_tm.tm_mday = day;
1129         today_t = mktime(&d_tm);
1130
1131         /* Figure out the dates for "yesterday" and "tomorrow" links */
1132
1133         memset(&today, 0, sizeof(struct icaltimetype));
1134         today.year = year;
1135         today.month = month;
1136         today.day = day;
1137         today.is_date = 1;
1138
1139         memcpy(&yesterday, &today, sizeof(struct icaltimetype));
1140         --yesterday.day;
1141         yesterday = icaltime_normalize(yesterday);
1142
1143         memcpy(&tomorrow, &today, sizeof(struct icaltimetype));
1144         ++tomorrow.day;
1145         tomorrow = icaltime_normalize(tomorrow);
1146
1147         wprintf("<div class=\"fix_scrollbar_bug\">");
1148
1149         /* Inner table (the real one) */
1150         wprintf("<table class=\"calendar\" id=\"inner_day\"><tr> \n");
1151
1152         /* Innermost cell (contains hours etc.) */
1153         wprintf("<td class=\"events_of_the_day\" >");
1154         wprintf("<dl class=\"events\" >");
1155
1156         /* Now the middle of the day... */
1157
1158         extrahourlabel = extratimeline - 2;
1159         hourlabel = extrahourlabel * 150 / 100;
1160         if (hourlabel > (timeline - 2)) hourlabel = timeline - 2;
1161
1162         for (hour = 0; hour < daystart; ++hour) {       /* could do HEIGHT=xx */
1163                 wprintf("<dt class=\"extrahour\"        "
1164                         "style=\"               "
1165                         "position: absolute;    "
1166                         "top: %dpx; left: 0px;  "
1167                         "height: %dpx;          "
1168                         "font-size: %dpx;       "
1169                         "\" >                   "
1170                         "<a href=\"display_edit_event?msgnum=0"
1171                         "?calview=day?year=%d?month=%d?day=%d?hour=%d?minute=0\">",
1172                         (hour * extratimeline ),
1173                         extratimeline,
1174                         extrahourlabel,
1175                         year, month, day, hour
1176                         );
1177
1178                 if (time_format == WC_TIMEFORMAT_24) {
1179                         wprintf("%2d:00</a> ", hour);
1180                 }
1181                 else {
1182                         wprintf("%d:00%s</a> ",
1183                                 ((hour == 0) ? 12 : (hour <= 12 ? hour : hour-12)),
1184                                 (hour < 12 ? "am" : "pm")
1185                                 );
1186                 }
1187
1188                 wprintf("</dt>");
1189         }
1190
1191         gap = daystart * extratimeline;
1192
1193         for (hour = daystart; hour <= dayend; ++hour) {       /* could do HEIGHT=xx */
1194                 wprintf("<dt class=\"hour\"     "
1195                         "style=\"               "
1196                         "position: absolute;    "
1197                         "top: %ldpx; left: 0px; "
1198                         "height: %dpx;          "
1199                         "font-size: %dpx;       "
1200                         "\" >                   "
1201                         "<a href=\"display_edit_event?msgnum=0?calview=day"
1202                         "?year=%d?month=%d?day=%d?hour=%d?minute=0\">",
1203                         gap + ((hour - daystart) * timeline ),
1204                         timeline,
1205                         hourlabel,
1206                         year, month, day, hour
1207                         );
1208
1209                 if (time_format == WC_TIMEFORMAT_24) {
1210                         wprintf("%2d:00</a> ", hour);
1211                 }
1212                 else {
1213                         wprintf("%d:00%s</a> ",
1214                                 (hour <= 12 ? hour : hour-12),
1215                                 (hour < 12 ? "am" : "pm")
1216                                                 );
1217                 }
1218
1219                 wprintf("</dt>");
1220         }
1221
1222         gap = gap + ((dayend - daystart + 1) * timeline);
1223
1224         for (hour = (dayend + 1); hour < 24; ++hour) {       /* could do HEIGHT=xx */
1225                 wprintf("<dt class=\"extrahour\"     "
1226                         "style=\"               "
1227                         "position: absolute;    "
1228                         "top: %ldpx; left: 0px; "
1229                         "height: %dpx;          "
1230                         "font-size: %dpx;       "
1231                         "\" >                   "
1232                         "<a href=\"display_edit_event?msgnum=0?calview=day"
1233                         "?year=%d?month=%d?day=%d?hour=%d?minute=0\">",
1234                         gap + ((hour - dayend - 1) * extratimeline ),
1235                         extratimeline,
1236                         extrahourlabel,
1237                         year, month, day, hour
1238                 );
1239
1240                 if (time_format == WC_TIMEFORMAT_24) {
1241                         wprintf("%2d:00</a> ", hour);
1242                 }
1243                 else {
1244                         wprintf("%d:00%s</a> ",
1245                                 (hour <= 12 ? hour : hour-12),
1246                                 (hour < 12 ? "am" : "pm")
1247                         );
1248                 }
1249
1250                 wprintf("</dt>");
1251         }
1252
1253         /* Display events with start and end times on this day */
1254         calendar_day_view_display_events(today_t, year, month, day, 0, daystart, dayend);
1255
1256         wprintf("</dl>");
1257         wprintf("</td>");                       /* end of innermost table */
1258
1259         /* Display extra events (start/end times not present or not today) in the middle column */
1260         wprintf("<td class=\"extra_events\">");
1261
1262         wprintf("<ul>");
1263
1264         /* Display all-day events */
1265         calendar_day_view_display_events(today_t, year, month, day, 1, daystart, dayend);
1266
1267         wprintf("</ul>");
1268
1269         wprintf("</td>");       /* end extra on the middle */
1270
1271         wprintf("<td width=20%% align=center valign=top>");     /* begin stuff-on-the-right */
1272
1273         /* Begin todays-date-with-left-and-right-arrows */
1274         wprintf("<table border=0 width=100%% "
1275                 "cellspacing=0 cellpadding=0 bgcolor=\"#FFFFFF\">\n");
1276         wprintf("<tr>");
1277
1278         /* Left arrow */
1279         wprintf("<td align=center>");
1280         wprintf("<a href=\"readfwd?calview=day?year=%d?month=%d?day=%d\">",
1281                 yesterday.year, yesterday.month, yesterday.day);
1282         wprintf("<img align=middle src=\"static/prevdate_32x.gif\" border=0></A>");
1283         wprintf("</td>");
1284
1285         wc_strftime(d_str, sizeof d_str,
1286                 "<td align=center>"
1287                 "<font size=+2>%B</font><br />"
1288                 "<font size=+3>%d</font><br />"
1289                 "<font size=+2>%Y</font><br />"
1290                 "</td>",
1291                 &d_tm
1292                 );
1293         wprintf("%s", d_str);
1294
1295         /* Right arrow */
1296         wprintf("<td align=center>");
1297         wprintf("<a href=\"readfwd?calview=day?year=%d?month=%d?day=%d\">",
1298                 tomorrow.year, tomorrow.month, tomorrow.day);
1299         wprintf("<img align=middle src=\"static/nextdate_32x.gif\""
1300                 " border=0></a>\n");
1301         wprintf("</td>");
1302
1303         wprintf("</tr></table>\n");
1304         /* End todays-date-with-left-and-right-arrows */
1305
1306         /* Embed a mini month calendar in this space */
1307         wprintf("<br />\n");
1308         embeddable_mini_calendar(year, month);
1309
1310         wprintf("</font></center>\n");
1311
1312         wprintf("</td></tr>");                  /* end stuff-on-the-right */
1313
1314         wprintf("</table>"                      /* end of inner table */
1315                 "</div>");
1316
1317         StrBufAppendPrintf(WC->trailing_javascript,
1318                 " setTimeout(\"btt_enableTooltips('inner_day')\", 1);   \n"
1319         );
1320 }
1321
1322
1323 /*
1324  * Display today's events.  Returns the number of items displayed.
1325  */
1326 int calendar_summary_view(void) {
1327         long hklen;
1328         const char *HashKey;
1329         void *vCal;
1330         HashPos *Pos;
1331         disp_cal *Cal;
1332         icalproperty *p;
1333         struct icaltimetype t;
1334         time_t event_tt;
1335         struct tm event_tm;
1336         struct tm today_tm;
1337         time_t now;
1338         int all_day_event = 0;
1339         char timestring[SIZ];
1340         wcsession *WCC = WC;
1341         int num_displayed = 0;
1342
1343         if (GetCount(WC->disp_cal_items) == 0) {
1344                 return(0);
1345         }
1346
1347         now = time(NULL);
1348         localtime_r(&now, &today_tm);
1349
1350         Pos = GetNewHashPos(WCC->disp_cal_items, 0);
1351         while (GetNextHashPos(WCC->disp_cal_items, Pos, &hklen, &HashKey, &vCal)) {
1352                 Cal = (disp_cal*)vCal;
1353                 p = icalcomponent_get_first_property(Cal->cal, ICAL_DTSTART_PROPERTY);
1354                 if (p != NULL) {
1355                         t = icalproperty_get_dtstart(p);
1356                         event_tt = icaltime_as_timet(t);
1357                         if (t.is_date) {
1358                                 all_day_event = 1;
1359                         }
1360                         else {
1361                                 all_day_event = 0;
1362                         }
1363                         fmt_time(timestring, SIZ, event_tt);
1364
1365                         if (all_day_event) {
1366                                 gmtime_r(&event_tt, &event_tm);
1367                         }
1368                         else {
1369                                 localtime_r(&event_tt, &event_tm);
1370                         }
1371
1372                         if ( (event_tm.tm_year == today_tm.tm_year)
1373                                 && (event_tm.tm_mon == today_tm.tm_mon)
1374                                 && (event_tm.tm_mday == today_tm.tm_mday)
1375                         ) {
1376
1377                                 p = icalcomponent_get_first_property(Cal->cal, ICAL_SUMMARY_PROPERTY);
1378                                 if (p == NULL) {
1379                                         p = icalproperty_new_summary(_("Untitled Task"));
1380                                         icalcomponent_add_property(Cal->cal, p);
1381                                 }
1382                                 if (p != NULL) {
1383
1384
1385                                         if (WCC->wc_view == VIEW_TASKS) {
1386                                                 wprintf("<a href=\"display_edit_task"
1387                                                         "?msgnum=%ld"
1388                                                         "?return_to_summary=1"
1389                                                         "?gotofirst=",
1390                                                         Cal->cal_msgnum
1391                                                 );
1392                                                 escputs(ChrPtr(WCC->wc_roomname));
1393                                                 wprintf("\">");
1394                                         }
1395                                         else {
1396                                                 wprintf("<a href=\"display_edit_event"
1397                                                         "?msgnum=%ld"
1398                                                         "?calview=summary"
1399                                                         "?year=%d"
1400                                                         "?month=%d"
1401                                                         "?day=%d"
1402                                                         "?gotofirst=",
1403                                                         Cal->cal_msgnum,
1404                                                         today_tm.tm_year + 1900,
1405                                                         today_tm.tm_mon + 1,
1406                                                         today_tm.tm_mday
1407                                                 );
1408                                                 escputs(ChrPtr(WCC->wc_roomname));
1409                                                 wprintf("\">");
1410                                         }
1411                                         escputs((char *) icalproperty_get_comment(p));
1412                                         if (!all_day_event) {
1413                                                 wprintf(" (%s)", timestring);
1414                                         }
1415                                         wprintf("</a><br />\n");
1416                                         ++num_displayed;
1417                                 }
1418                         }
1419                 }
1420         }
1421         DeleteHashPos(&Pos);
1422         DeleteHash(&WC->disp_cal_items);
1423         return(num_displayed);
1424 }
1425
1426 /*
1427  * Parse the URL variables in order to determine the scope and display of a calendar view
1428  */
1429 int calendar_GetParamsGetServerCall(SharedMessageStatus *Stat,
1430                                     void **ViewSpecific,
1431                                     long oper,
1432                                     char *cmd,
1433                                     long len)
1434 {
1435         calview *c;
1436         time_t now;
1437         struct tm tm;
1438         char cv[32];
1439
1440         int span = 3888000;
1441
1442         c = (calview*) malloc(sizeof(calview));
1443         memset(c, 0, sizeof(calview));
1444         *ViewSpecific = (void*)c;
1445
1446         Stat->load_seen = 1;
1447         strcpy(cmd, "MSGS ALL");
1448         Stat->maxmsgs = 32767;
1449
1450         /* In case no date was specified, go with today */
1451         now = time(NULL);
1452         localtime_r(&now, &tm);
1453         c->year = tm.tm_year + 1900;
1454         c->month = tm.tm_mon + 1;
1455         c->day = tm.tm_mday;
1456
1457         /* Now see if a date was specified */
1458         if (havebstr("year")) c->year = ibstr("year");
1459         if (havebstr("month")) c->month = ibstr("month");
1460         if (havebstr("day")) c->day = ibstr("day");
1461
1462         /* How would you like that cooked? */
1463         if (havebstr("calview")) {
1464                 strcpy(cv, bstr("calview"));
1465         }
1466         else {
1467                 strcpy(cv, "month");
1468         }
1469
1470         /* Display the selected view */
1471         if (!strcasecmp(cv, "day")) {
1472                 c->view = calview_day;
1473         }
1474         else if (!strcasecmp(cv, "week")) {
1475                 c->view = calview_week;
1476         }
1477         else if (!strcasecmp(cv, "summary")) {  /* shouldn't ever happen, but just in case */
1478                 c->view = calview_day;
1479         }
1480         else {
1481                 if (WC->wc_view == VIEW_CALBRIEF) {
1482                         c->view = calview_brief;
1483                 }
1484                 else {
1485                         c->view = calview_month;
1486                 }
1487         }
1488
1489         /* Now try and set the lower and upper bounds so that we don't
1490          * burn too many cpu cycles parsing data way in the past or future
1491          */
1492
1493         tm.tm_year = c->year - 1900;
1494         tm.tm_mon = c->month - 1;
1495         tm.tm_mday = c->day;
1496         now = mktime(&tm);
1497
1498         if (c->view == calview_month)   span = 3888000;
1499         if (c->view == calview_brief)   span = 3888000;
1500         if (c->view == calview_week)    span = 604800;
1501         if (c->view == calview_day)     span = 86400;
1502         if (c->view == calview_summary) span = 86400;
1503
1504         c->lower_bound = now - span;
1505         c->upper_bound = now + span;
1506         return 200;
1507 }
1508
1509
1510
1511 /*
1512  * Render a calendar view from data previously loaded into memory
1513  */
1514 int calendar_RenderView_or_Tail(SharedMessageStatus *Stat,
1515                                 void **ViewSpecific,
1516                                 long oper)
1517 {
1518         calview *c = (calview*) *ViewSpecific;
1519
1520         if (c->view == calview_day) {
1521                 calendar_day_view(c->year, c->month, c->day);
1522         }
1523         else if (c->view == calview_week) {
1524                 calendar_week_view(c->year, c->month, c->day);
1525         }
1526         else {
1527                 if (WC->wc_view == VIEW_CALBRIEF) {
1528                         calendar_brief_month_view(c->year, c->month, c->day);
1529                 }
1530                 else {
1531                         calendar_month_view(c->year, c->month, c->day);
1532                 }
1533         }
1534
1535         /* Free the in-memory list of calendar items */
1536         DeleteHash(&WC->disp_cal_items);
1537         return 0;
1538 }
1539
1540
1541
1542
1543