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_mday == day) ? "today" :
 600                                 ((tm.tm_wday==0 || tm.tm_wday==6) ? "weekend" :
 601                                         "day")))
 602                         );
 603                 if ((i==0) || (tm.tm_mday == 1)) {
 604                         wc_strftime(colheader_label, sizeof colheader_label, "%B", &tm);
 605                         wprintf("%s ", colheader_label);
 606                 }
 607                 wprintf("<a href=\"readfwd?calview=day?year=%d?month=%d?day=%d\">"
 608                         "%d</a></div>",
 609                         tm.tm_year + 1900,
 610                         tm.tm_mon + 1,
 611                         tm.tm_mday,
 612                         tm.tm_mday);
 613
 614                 /* put the data here, stupid */
 615                 calendar_month_view_display_events(
 616                         tm.tm_year + 1900,
 617                         tm.tm_mon + 1,
 618                         tm.tm_mday
 619                         );
 620
 621                 wprintf("</td>");
 622
 623                 /* After displaying the last day of the week, end the row */
 624                 if ((i % 7) == 6) {
 625                         wprintf("</tr>\n");
 626                 }
 627
 628                 thetime += (time_t)86400;               /* ahead 24 hours */
 629                 localtime_r(&thetime, &tm);
 630
 631                 if ( ((i % 7) == 6) && (tm.tm_mon != month-1) && (tm.tm_mday < 15) ) {
 632                         i = 100;        /* break out of the loop */
 633                 }
 634         }
 635
 636         wprintf("</table>"                      /* end of inner table */
 637                 "</td></tr></table>"            /* end of outer table */
 638                 "</div>\n");
 639
 640         /*
 641          * Initialize the bubble tooltips.
 642          *
 643          * Yes, this is as stupid as it looks.  Instead of just making the call
 644          * to btt_enableTooltips() straight away, we have to create a timer event
 645          * and let it initialize as an event after 1 millisecond.  This is to
 646          * work around a bug in Internet Explorer that causes it to crash if we
 647          * manipulate the innerHTML of various DOM nodes while the page is still
 648          * being rendered.  See http://www.shaftek.org/blog/archives/000212.html
 649          * for more information.
 650          */
 651         StrBufAppendPrintf(WC->trailing_javascript,
 652                 " setTimeout(\"btt_enableTooltips('inner_month')\", 1); \n"
 653         );
 654 }
 655
 656 /*
 657  * view one month. brief view
 658  */
 659 void calendar_brief_month_view(int year, int month, int day) {
 660         struct tm starting_tm;
 661         struct tm tm;
 662         time_t thetime;
 663         int i;
 664         time_t previous_month;
 665         time_t next_month;
 666         char month_label[32];
 667
 668         /* Determine what day to start.
 669          * First, back up to the 1st of the month...
 670          */
 671         memset(&starting_tm, 0, sizeof(struct tm));
 672         starting_tm.tm_year = year - 1900;
 673         starting_tm.tm_mon = month - 1;
 674         starting_tm.tm_mday = day;
 675         thetime = mktime(&starting_tm);
 676
 677         memcpy(&tm, &starting_tm, sizeof(struct tm));
 678         while (tm.tm_mday != 1) {
 679                 thetime = thetime - (time_t)86400;      /* go back 24 hours */
 680                 localtime_r(&thetime, &tm);
 681         }
 682
 683         /* Determine previous and next months ... for links */
 684         previous_month = thetime - (time_t)864000L;     /* back 10 days */
 685         next_month = thetime + (time_t)(31L * 86400L);  /* ahead 31 days */
 686
 687         /* Now back up until we're on a Sunday */
 688         localtime_r(&thetime, &tm);
 689         while (tm.tm_wday != 0) {
 690                 thetime = thetime - (time_t)86400;      /* go back 24 hours */
 691                 localtime_r(&thetime, &tm);
 692         }
 693
 694         /* Outer table (to get the background color) */
 695         wprintf("<div class=\"fix_scrollbar_bug\">"
 696                 "<table width=100%% border=0 cellpadding=0 cellspacing=0 "
 697                 "bgcolor=#204B78><TR><TD>\n");
 698
 699         wprintf("<table width=100%% border=0 cellpadding=0 cellspacing=0><tr>\n");
 700
 701         wprintf("<td align=center>");
 702
 703         localtime_r(&previous_month, &tm);
 704         wprintf("<a href=\"readfwd?calview=month?year=%d?month=%d?day=1\">",
 705                 (int)(tm.tm_year)+1900, tm.tm_mon + 1);
 706         wprintf("<img align=middle src=\"static/prevdate_32x.gif\" border=0></A>\n");
 707
 708         wc_strftime(month_label, sizeof month_label, "%B", &tm);
 709         wprintf("&nbsp;&nbsp;"
 710                 "<font size=+1 color=\"#FFFFFF\">"
 711                 "%s %d"
 712                 "</font>"
 713                 "&nbsp;&nbsp;", month_label, year);
 714
 715         localtime_r(&next_month, &tm);
 716         wprintf("<a href=\"readfwd?calview=month?year=%d?month=%d?day=1\">",
 717                 (int)(tm.tm_year)+1900, tm.tm_mon + 1);
 718         wprintf("<img align=middle src=\"static/nextdate_32x.gif\" border=0></A>\n");
 719
 720         wprintf("</td></tr></table>\n");
 721
 722         /* Inner table (the real one) */
 723         wprintf("<table width=100%% border=0 cellpadding=1 cellspacing=1 "
 724                 "bgcolor=#EEEECC><TR>");
 725         wprintf("</tr>\n");
 726         wprintf("<tr><td colspan=\"100%%\">\n");
 727
 728         /* Now do 35 days */
 729         for (i = 0; i < 35; ++i) {
 730                 char weeknumber[255];
 731                 char weekday_name[32];
 732                 char *daycolor;
 733                 localtime_r(&thetime, &tm);
 734
 735
 736                 /* Before displaying Sunday, start a new CELL */
 737                 if ((i % 7) == 0) {
 738                         wc_strftime(&weeknumber[0], sizeof(weeknumber), "%U", &tm);
 739                         wprintf("<table border='0' bgcolor=\"#EEEECC\" width='100%%'> <tr><th colspan='4'>%s %s</th></tr>"
 740                                 "   <tr><td>%s</td><td width=70%%>%s</td><td>%s</td><td>%s</td></tr>\n",
 741                                 _("Week"),
 742                                 weeknumber,
 743                                 _("Hours"),
 744                                 _("Subject"),
 745                                 _("Start"),
 746                                 _("End")
 747                                 );
 748                 }
 749
 750                 daycolor=((tm.tm_mon != month-1) ? "DDDDDD" :
 751                         ((tm.tm_wday==0 || tm.tm_wday==6) ? "EEEECC" :
 752                                 "FFFFFF"));
 753
 754                 /* Day Header */
 755                 wc_strftime(weekday_name, sizeof weekday_name, "%A", &tm);
 756                 wprintf("<tr><td bgcolor='%s' colspan='1' align='left'> %s,%i."
 757                         "</td><td bgcolor='%s' colspan='3'><hr></td></tr>\n",
 758                         daycolor,
 759                         weekday_name,tm.tm_mday,
 760                         daycolor);
 761
 762                 /* put the data of one day  here, stupid */
 763                 calendar_month_view_brief_events(thetime, daycolor);
 764
 765
 766                 /* After displaying Saturday, end the row */
 767                 if ((i % 7) == 6) {
 768                         wprintf("</td></tr></table>\n");
 769                 }
 770
 771                 thetime += (time_t)86400;               /* ahead 24 hours */
 772         }
 773
 774         wprintf("</table>"                      /* end of inner table */
 775                 "</td></tr></table>"            /* end of outer table */
 776                 "</div>\n");
 777 }
 778
 779 /*
 780  * Calendar week view -- not implemented yet, this is a stub function
 781  */
 782 void calendar_week_view(int year, int month, int day) {
 783         wprintf("<center><i>week view FIXME</i></center><br />\n");
 784 }
 785
 786
 787 /*
 788  * display one day
 789  * Display events for a particular hour of a particular day.
 790  * (Specify hour < 0 to show "all day" events)
 791  *
 792  * dstart and dend indicate which hours our "daytime" begins and end
 793  */
 794 void calendar_day_view_display_events(time_t thetime,
 795         int year,
 796         int month,
 797         int day,
 798         int notime_events,
 799         int dstart,
 800         int dend)
 801 {
 802         long hklen;
 803         const char *HashKey;
 804         void *vCal;
 805         HashPos *Pos;
 806         icalproperty *p = NULL;
 807         icalproperty *q = NULL;
 808         time_t event_tt;
 809         time_t event_tte;
 810         struct tm event_te;
 811         struct tm event_tm;
 812         int show_event = 0;
 813         int all_day_event = 0;
 814         int ongoing_event = 0;
 815         wcsession *WCC = WC;
 816         disp_cal *Cal;
 817         struct icaltimetype t;
 818         struct icaltimetype end_t;
 819         struct icaltimetype today_start_t;
 820         struct icaltimetype today_end_t;
 821         struct icaltimetype today_t;
 822         struct tm starting_tm;
 823         struct tm ending_tm;
 824         int top = 0;
 825         int bottom = 0;
 826         int gap = 1;
 827         int startmin = 0;
 828         int diffmin = 0;
 829         int endmin = 0;
 830
 831         char buf[256];
 832
 833         if (GetCount(WCC->disp_cal_items) == 0) {
 834                 /* nothing to display */
 835                 return;
 836         }
 837
 838         /* Create an imaginary event which spans the current day.  Any events which
 839          * overlap with this one take place at least partially in this day.
 840          */
 841         memset(&starting_tm, 0, sizeof(struct tm));
 842         starting_tm.tm_year = year - 1900;
 843         starting_tm.tm_mon = month - 1;
 844         starting_tm.tm_mday = day;
 845         starting_tm.tm_hour = 0;
 846         starting_tm.tm_min = 0;
 847         today_start_t = icaltime_from_timet_with_zone(mktime(&starting_tm), 0, icaltimezone_get_utc_timezone());
 848         today_start_t.is_utc = 1;
 849
 850         memset(&ending_tm, 0, sizeof(struct tm));
 851         ending_tm.tm_year = year - 1900;
 852         ending_tm.tm_mon = month - 1;
 853         ending_tm.tm_mday = day;
 854         ending_tm.tm_hour = 23;
 855         ending_tm.tm_min = 59;
 856         today_end_t = icaltime_from_timet_with_zone(mktime(&ending_tm), 0, icaltimezone_get_utc_timezone());
 857         today_end_t.is_utc = 1;
 858
 859         /*
 860          * Create another one without caring about the timezone for all day events.
 861          */
 862         today_t = icaltime_null_date();
 863         today_t.year = year;
 864         today_t.month = month;
 865         today_t.day = day;
 866
 867         /* Now loop through our list of events to see which ones occur today.
 868          */
 869         Pos = GetNewHashPos(WCC->disp_cal_items, 0);
 870         while (GetNextHashPos(WCC->disp_cal_items, Pos, &hklen, &HashKey, &vCal)) {
 871                 Cal = (disp_cal*)vCal;
 872
 873                 all_day_event = 0;
 874                 ongoing_event=0;
 875
 876                 q = icalcomponent_get_first_property(Cal->cal, ICAL_DTSTART_PROPERTY);
 877                 if (q != NULL) {
 878                         t = icalproperty_get_dtstart(q);
 879                         event_tt = icaltime_as_timet(t);
 880                         localtime_r(&event_tt, &event_te);
 881                 }
 882                 else {
 883                         memset(&t, 0, sizeof t);
 884                 }
 885
 886                 if (t.is_date) all_day_event = 1;
 887
 888                 q = icalcomponent_get_first_property(Cal->cal, ICAL_DTEND_PROPERTY);
 889                 if (q != NULL) {
 890                         end_t = icalproperty_get_dtend(q);
 891                 }
 892                 else {
 893                         /* no end given means end = start */
 894                         memcpy(&end_t, &t, sizeof(struct icaltimetype));
 895                 }
 896
 897                 if (all_day_event)
 898                 {
 899                         show_event = ical_ctdl_is_overlap(t, end_t, today_t, icaltime_null_time());
 900                         if (icaltime_compare(t, end_t)) {
 901                                 /*
 902                                  * the end date is non-inclusive so adjust it by one
 903                                  * day because our test is inclusive, note that a day is
 904                                  * not to much because we are talking about all day
 905                                  * events
 906                                  */
 907                                 icaltime_adjust(&end_t, -1, 0, 0, 0);
 908                         }
 909                 }
 910                 else
 911                 {
 912                         show_event = ical_ctdl_is_overlap(t, end_t, today_start_t, today_end_t);
 913                 }
 914
 915                 event_tte = icaltime_as_timet(end_t);
 916                 localtime_r(&event_tte, &event_tm);
 917
 918                 /* If we determined that this event occurs today, then display it.
 919                  */
 920                 p = icalcomponent_get_first_property(Cal->cal,ICAL_SUMMARY_PROPERTY);
 921                 if (p == NULL) {
 922                         p = icalproperty_new_summary(_("Untitled Event"));
 923                         icalcomponent_add_property(Cal->cal, p);
 924                 }
 925
 926                 if ((show_event) && (p != NULL)) {
 927
 928                         if ((event_te.tm_mday != day) || (event_tm.tm_mday != day)) ongoing_event = 1;
 929
 930                         if (all_day_event && notime_events)
 931                         {
 932                                 wprintf("<li class=\"event_framed%s\"> "
 933                                         "<a href=\"display_edit_event?"
 934                                         "msgnum=%ld?calview=day?year=%d?month=%d?day=%d\" "
 935                                         " class=\"event_title\" "
 936                                         " btt_tooltext=\"",
 937                                         (Cal->unread)?"_unread":"_read",
 938                                         Cal->cal_msgnum, year, month, day);
 939                                 wprintf("<i>%s</i><br />",      _("All day event"));
 940                                 wprintf("<i>%s: %s</i><br />",  _("From"), Cal->from);
 941                                 wprintf("<i>%s</i> ",           _("Summary:"));
 942                                 escputs((char *) icalproperty_get_comment(p));
 943                                 wprintf("<br />");
 944                                 q = icalcomponent_get_first_property(Cal->cal,ICAL_LOCATION_PROPERTY);
 945                                 if (q) {
 946                                         wprintf("<i>%s</i> ", _("Location:"));
 947                                         escputs((char *)icalproperty_get_comment(q));
 948                                         wprintf("<br />");
 949                                 }
 950                                 if (!icaltime_compare(t, end_t)) { /* one day only */
 951                                         webcit_fmt_date(buf, 256, event_tt, DATEFMT_LOCALEDATE);
 952                                         wprintf("<i>%s</i> %s<br>", _("Date:"), buf);
 953                                 }
 954                                 else {
 955                                         webcit_fmt_date(buf, 256, event_tt, DATEFMT_LOCALEDATE);
 956                                         wprintf("<i>%s</i> %s<br>", _("Starting date:"), buf);
 957                                         webcit_fmt_date(buf, 256, event_tte, DATEFMT_LOCALEDATE);
 958                                         wprintf("<i>%s</i> %s<br>", _("Ending date:"), buf);
 959                                 }
 960                                 q = icalcomponent_get_first_property(Cal->cal,ICAL_DESCRIPTION_PROPERTY);
 961                                 if (q) {
 962                                         wprintf("<i>%s</i> ", _("Notes:"));
 963                                         escputs((char *)icalproperty_get_comment(q));
 964                                         wprintf("<br />");
 965                                 }
 966                                 wprintf("\">");
 967                                 escputs((char *) icalproperty_get_comment(p));
 968                                 wprintf("</a> <span>(");
 969                                 wprintf(_("All day event"));
 970                                 wprintf(")</span></li>\n");
 971                         }
 972                         else if (ongoing_event && notime_events)
 973                         {
 974                                 wprintf("<li class=\"event_framed%s\"> "
 975                                         "<a href=\"display_edit_event?"
 976                                         "msgnum=%ld&calview=day?year=%d?month=%d?day=%d\" "
 977                                         " class=\"event_title\" "
 978                                         "btt_tooltext=\"",
 979                                         (Cal->unread)?"_unread":"_read",
 980                                         Cal->cal_msgnum, year, month, day);
 981                                 wprintf("<i>%s</i><br />",     _("Ongoing event"));
 982                                 wprintf("<i>%s: %s</i><br />", _("From"), Cal->from);
 983                                 wprintf("<i>%s</i> ",          _("Summary:"));
 984                                 escputs((char *) icalproperty_get_comment(p));
 985                                 wprintf("<br />");
 986                                 q = icalcomponent_get_first_property(Cal->cal,ICAL_LOCATION_PROPERTY);
 987                                 if (q) {
 988                                         wprintf("<i>%s</i> ", _("Location:"));
 989                                         escputs((char *)icalproperty_get_comment(q));
 990                                         wprintf("<br />");
 991                                                                 }
 992                                 webcit_fmt_date(buf, 256, event_tt, DATEFMT_BRIEF);
 993                                 wprintf("<i>%s</i> %s<br>", _("Starting date/time:"), buf);
 994                                 webcit_fmt_date(buf, 256, event_tte, DATEFMT_BRIEF);
 995                                 wprintf("<i>%s</i> %s<br>", _("Ending date/time:"), buf);
 996                                 q = icalcomponent_get_first_property(Cal->cal,ICAL_DESCRIPTION_PROPERTY);
 997                                 if (q) {
 998                                         wprintf("<i>%s</i> ", _("Notes:"));
 999                                         escputs((char *)icalproperty_get_comment(q));
1000                                         wprintf("<br />");
1001                                 }
1002                                 wprintf("\">");
1003                                 escputs((char *) icalproperty_get_comment(p));
1004                                 wprintf("</a> <span>(");
1005                                 wprintf(_("Ongoing event"));
1006                                 wprintf(")</span></li>\n");
1007                         }
1008                         else if (!all_day_event && !notime_events)
1009                         {
1010                                 gap++;
1011
1012                                 if (event_te.tm_mday != day) event_te.tm_hour = 0;
1013                                 if (event_tm.tm_mday != day) event_tm.tm_hour = 24;
1014
1015                                 /* Calculate the location of the top of the box */
1016                                 if (event_te.tm_hour < dstart) {
1017                                         startmin = diffmin = event_te.tm_min / 6;
1018                                         top = (event_te.tm_hour * EXTRATIMELINE) + startmin;
1019                                 }
1020                                 else if ((event_te.tm_hour >= dstart) && (event_te.tm_hour <= dend)) {
1021                                         startmin = diffmin = (event_te.tm_min / 2);
1022                                         top = (dstart * EXTRATIMELINE) + ((event_te.tm_hour - dstart) * TIMELINE) + startmin;
1023                                 }
1024                                 else if (event_te.tm_hour >dend) {
1025                                         startmin = diffmin = event_te.tm_min / 6;
1026                                         top = (dstart * EXTRATIMELINE) + ((dend - dstart - 1) * TIMELINE) + ((event_tm.tm_hour - dend + 1) * EXTRATIMELINE) + startmin ;
1027                                 }
1028                                 else {
1029                                         /* should never get here */
1030                                 }
1031
1032                                 /* Calculate the location of the bottom of the box */
1033                                 if (event_tm.tm_hour < dstart) {
1034                                         endmin = diffmin = event_tm.tm_min / 6;
1035                                         bottom = (event_tm.tm_hour * EXTRATIMELINE) + endmin;
1036                                 }
1037                                 else if ((event_tm.tm_hour >= dstart) && (event_tm.tm_hour <= dend)) {
1038                                         endmin = diffmin = (event_tm.tm_min / 2);
1039                                         bottom = (dstart * EXTRATIMELINE) + ((event_tm.tm_hour - dstart) * TIMELINE) + endmin ;
1040                                 }
1041                                 else if (event_tm.tm_hour >dend) {
1042                                         endmin = diffmin = event_tm.tm_min / 6;
1043                                         bottom = (dstart * EXTRATIMELINE) + ((dend - dstart + 1) * TIMELINE) + ((event_tm.tm_hour - dend - 1) * EXTRATIMELINE) + endmin;
1044                                 }
1045                                 else {
1046                                         /* should never get here */
1047                                 }
1048
1049                                 wprintf("<dd  class=\"event_framed%s\" "
1050                                         "style=\"position: absolute; "
1051                                         "top:%dpx; left:%dpx; "
1052                                         "height:%dpx; \" >",
1053                                         (Cal->unread)?"_unread":"_read",
1054                                         top, (gap * 40), (bottom-top)
1055                                         );
1056                                 wprintf("<a href=\"display_edit_event?"
1057                                         "msgnum=%ld?calview=day?year=%d?month=%d?day=%d?hour=%d\" "
1058                                         "class=\"event_title\" "
1059                                         "btt_tooltext=\"",
1060                                         Cal->cal_msgnum, year, month, day, t.hour);
1061                                 wprintf("<i>%s: %s</i><br />", _("From"), Cal->from);
1062                                 wprintf("<i>%s</i> ",          _("Summary:"));
1063                                 escputs((char *) icalproperty_get_comment(p));
1064                                 wprintf("<br />");
1065                                 q = icalcomponent_get_first_property(Cal->cal,ICAL_LOCATION_PROPERTY);
1066                                 if (q) {
1067                                         wprintf("<i>%s</i> ", _("Location:"));
1068                                         escputs((char *)icalproperty_get_comment(q));
1069                                         wprintf("<br />");
1070                                                                 }
1071                                 if (!icaltime_compare(t, end_t)) { /* one day only */
1072                                         webcit_fmt_date(buf, 256, event_tt, DATEFMT_BRIEF);
1073                                         wprintf("<i>%s</i> %s<br>", _("Date/time:"), buf);
1074                                 }
1075                                 else {
1076                                         webcit_fmt_date(buf, 256, event_tt, DATEFMT_BRIEF);
1077                                         wprintf("<i>%s</i> %s<br>", _("Starting date/time:"), buf);
1078                                         webcit_fmt_date(buf, 256, event_tte, DATEFMT_BRIEF);
1079                                         wprintf("<i>%s</i> %s<br>", _("Ending date/time:"), buf);
1080                                 }
1081                                 q = icalcomponent_get_first_property(Cal->cal,ICAL_DESCRIPTION_PROPERTY);
1082                                 if (q) {
1083                                         wprintf("<i>%s</i> ", _("Notes:"));
1084                                         escputs((char *)icalproperty_get_comment(q));
1085                                         wprintf("<br />");
1086                                 }
1087                                 wprintf("\">");
1088
1089                                 escputs((char *) icalproperty_get_comment(p));
1090                                 wprintf("</a></dd>\n");
1091                         }
1092                 }
1093         }
1094         DeleteHashPos(&Pos);
1095 }
1096
1097 /*
1098  * view one day
1099  */
1100 void calendar_day_view(int year, int month, int day) {
1101         int hour;
1102         struct icaltimetype today, yesterday, tomorrow;
1103         long daystart;
1104         long dayend;
1105         struct tm d_tm;
1106         char d_str[128];
1107         int time_format;
1108         time_t today_t;
1109         int timeline = TIMELINE;
1110         int extratimeline = EXTRATIMELINE;
1111         int gap = 0;
1112         int hourlabel;
1113         int extrahourlabel;
1114
1115         time_format = get_time_format_cached ();
1116         get_pref_long("daystart", &daystart, 8);
1117         get_pref_long("dayend", &dayend, 17);
1118
1119         /* when loading daystart/dayend, replace missing, corrupt, or impossible values with defaults */
1120         if ((daystart < 0) || (dayend < 2) || (daystart >= 23) || (dayend > 23) || (dayend <= daystart)) {
1121                 daystart = 9;
1122                 dayend = 17;
1123         }
1124
1125         /* Today's date */
1126         memset(&d_tm, 0, sizeof d_tm);
1127         d_tm.tm_year = year - 1900;
1128         d_tm.tm_mon = month - 1;
1129         d_tm.tm_mday = day;
1130         today_t = mktime(&d_tm);
1131
1132         /* Figure out the dates for "yesterday" and "tomorrow" links */
1133
1134         memset(&today, 0, sizeof(struct icaltimetype));
1135         today.year = year;
1136         today.month = month;
1137         today.day = day;
1138         today.is_date = 1;
1139
1140         memcpy(&yesterday, &today, sizeof(struct icaltimetype));
1141         --yesterday.day;
1142         yesterday = icaltime_normalize(yesterday);
1143
1144         memcpy(&tomorrow, &today, sizeof(struct icaltimetype));
1145         ++tomorrow.day;
1146         tomorrow = icaltime_normalize(tomorrow);
1147
1148         wprintf("<div class=\"fix_scrollbar_bug\">");
1149
1150         /* Inner table (the real one) */
1151         wprintf("<table class=\"calendar\" id=\"inner_day\"><tr> \n");
1152
1153         /* Innermost cell (contains hours etc.) */
1154         wprintf("<td class=\"events_of_the_day\" >");
1155         wprintf("<dl class=\"events\" >");
1156
1157         /* Now the middle of the day... */
1158
1159         extrahourlabel = extratimeline - 2;
1160         hourlabel = extrahourlabel * 150 / 100;
1161         if (hourlabel > (timeline - 2)) hourlabel = timeline - 2;
1162
1163         for (hour = 0; hour < daystart; ++hour) {       /* could do HEIGHT=xx */
1164                 wprintf("<dt class=\"extrahour\"        "
1165                         "style=\"               "
1166                         "position: absolute;    "
1167                         "top: %dpx; left: 0px;  "
1168                         "height: %dpx;          "
1169                         "font-size: %dpx;       "
1170                         "\" >                   "
1171                         "<a href=\"display_edit_event?msgnum=0"
1172                         "?calview=day?year=%d?month=%d?day=%d?hour=%d?minute=0\">",
1173                         (hour * extratimeline ),
1174                         extratimeline,
1175                         extrahourlabel,
1176                         year, month, day, hour
1177                         );
1178
1179                 if (time_format == WC_TIMEFORMAT_24) {
1180                         wprintf("%2d:00</a> ", hour);
1181                 }
1182                 else {
1183                         wprintf("%d:00%s</a> ",
1184                                 ((hour == 0) ? 12 : (hour <= 12 ? hour : hour-12)),
1185                                 (hour < 12 ? "am" : "pm")
1186                                 );
1187                 }
1188
1189                 wprintf("</dt>");
1190         }
1191
1192         gap = daystart * extratimeline;
1193
1194         for (hour = daystart; hour <= dayend; ++hour) {       /* could do HEIGHT=xx */
1195                 wprintf("<dt class=\"hour\"     "
1196                         "style=\"               "
1197                         "position: absolute;    "
1198                         "top: %ldpx; left: 0px; "
1199                         "height: %dpx;          "
1200                         "font-size: %dpx;       "
1201                         "\" >                   "
1202                         "<a href=\"display_edit_event?msgnum=0?calview=day"
1203                         "?year=%d?month=%d?day=%d?hour=%d?minute=0\">",
1204                         gap + ((hour - daystart) * timeline ),
1205                         timeline,
1206                         hourlabel,
1207                         year, month, day, hour
1208                         );
1209
1210                 if (time_format == WC_TIMEFORMAT_24) {
1211                         wprintf("%2d:00</a> ", hour);
1212                 }
1213                 else {
1214                         wprintf("%d:00%s</a> ",
1215                                 (hour <= 12 ? hour : hour-12),
1216                                 (hour < 12 ? "am" : "pm")
1217                                                 );
1218                 }
1219
1220                 wprintf("</dt>");
1221         }
1222
1223         gap = gap + ((dayend - daystart + 1) * timeline);
1224
1225         for (hour = (dayend + 1); hour < 24; ++hour) {       /* could do HEIGHT=xx */
1226                 wprintf("<dt class=\"extrahour\"     "
1227                         "style=\"               "
1228                         "position: absolute;    "
1229                         "top: %ldpx; left: 0px; "
1230                         "height: %dpx;          "
1231                         "font-size: %dpx;       "
1232                         "\" >                   "
1233                         "<a href=\"display_edit_event?msgnum=0?calview=day"
1234                         "?year=%d?month=%d?day=%d?hour=%d?minute=0\">",
1235                         gap + ((hour - dayend - 1) * extratimeline ),
1236                         extratimeline,
1237                         extrahourlabel,
1238                         year, month, day, hour
1239                 );
1240
1241                 if (time_format == WC_TIMEFORMAT_24) {
1242                         wprintf("%2d:00</a> ", hour);
1243                 }
1244                 else {
1245                         wprintf("%d:00%s</a> ",
1246                                 (hour <= 12 ? hour : hour-12),
1247                                 (hour < 12 ? "am" : "pm")
1248                         );
1249                 }
1250
1251                 wprintf("</dt>");
1252         }
1253
1254         /* Display events with start and end times on this day */
1255         calendar_day_view_display_events(today_t, year, month, day, 0, daystart, dayend);
1256
1257         wprintf("</dl>");
1258         wprintf("</td>");                       /* end of innermost table */
1259
1260         /* Display extra events (start/end times not present or not today) in the middle column */
1261         wprintf("<td class=\"extra_events\">");
1262
1263         wprintf("<ul>");
1264
1265         /* Display all-day events */
1266         calendar_day_view_display_events(today_t, year, month, day, 1, daystart, dayend);
1267
1268         wprintf("</ul>");
1269
1270         wprintf("</td>");       /* end extra on the middle */
1271
1272         wprintf("<td width=20%% align=center valign=top>");     /* begin stuff-on-the-right */
1273
1274         /* Begin todays-date-with-left-and-right-arrows */
1275         wprintf("<table border=0 width=100%% "
1276                 "cellspacing=0 cellpadding=0 bgcolor=\"#FFFFFF\">\n");
1277         wprintf("<tr>");
1278
1279         /* Left arrow */
1280         wprintf("<td align=center>");
1281         wprintf("<a href=\"readfwd?calview=day?year=%d?month=%d?day=%d\">",
1282                 yesterday.year, yesterday.month, yesterday.day);
1283         wprintf("<img align=middle src=\"static/prevdate_32x.gif\" border=0></A>");
1284         wprintf("</td>");
1285
1286         wc_strftime(d_str, sizeof d_str,
1287                 "<td align=center>"
1288                 "<font size=+2>%B</font><br />"
1289                 "<font size=+3>%d</font><br />"
1290                 "<font size=+2>%Y</font><br />"
1291                 "</td>",
1292                 &d_tm
1293                 );
1294         wprintf("%s", d_str);
1295
1296         /* Right arrow */
1297         wprintf("<td align=center>");
1298         wprintf("<a href=\"readfwd?calview=day?year=%d?month=%d?day=%d\">",
1299                 tomorrow.year, tomorrow.month, tomorrow.day);
1300         wprintf("<img align=middle src=\"static/nextdate_32x.gif\""
1301                 " border=0></a>\n");
1302         wprintf("</td>");
1303
1304         wprintf("</tr></table>\n");
1305         /* End todays-date-with-left-and-right-arrows */
1306
1307         /* Embed a mini month calendar in this space */
1308         wprintf("<br />\n");
1309         embeddable_mini_calendar(year, month);
1310
1311         wprintf("</font></center>\n");
1312
1313         wprintf("</td></tr>");                  /* end stuff-on-the-right */
1314
1315         wprintf("</table>"                      /* end of inner table */
1316                 "</div>");
1317
1318         StrBufAppendPrintf(WC->trailing_javascript,
1319                 " setTimeout(\"btt_enableTooltips('inner_day')\", 1);   \n"
1320         );
1321 }
1322
1323
1324 /*
1325  * Display today's events.  Returns the number of items displayed.
1326  */
1327 int calendar_summary_view(void) {
1328         long hklen;
1329         const char *HashKey;
1330         void *vCal;
1331         HashPos *Pos;
1332         disp_cal *Cal;
1333         icalproperty *p;
1334         struct icaltimetype t;
1335         time_t event_tt;
1336         struct tm event_tm;
1337         struct tm today_tm;
1338         time_t now;
1339         int all_day_event = 0;
1340         char timestring[SIZ];
1341         wcsession *WCC = WC;
1342         int num_displayed = 0;
1343
1344         if (GetCount(WC->disp_cal_items) == 0) {
1345                 return(0);
1346         }
1347
1348         now = time(NULL);
1349         localtime_r(&now, &today_tm);
1350
1351         Pos = GetNewHashPos(WCC->disp_cal_items, 0);
1352         while (GetNextHashPos(WCC->disp_cal_items, Pos, &hklen, &HashKey, &vCal)) {
1353                 Cal = (disp_cal*)vCal;
1354                 p = icalcomponent_get_first_property(Cal->cal, ICAL_DTSTART_PROPERTY);
1355                 if (p != NULL) {
1356                         t = icalproperty_get_dtstart(p);
1357                         event_tt = icaltime_as_timet(t);
1358                         if (t.is_date) {
1359                                 all_day_event = 1;
1360                         }
1361                         else {
1362                                 all_day_event = 0;
1363                         }
1364                         fmt_time(timestring, SIZ, event_tt);
1365
1366                         if (all_day_event) {
1367                                 gmtime_r(&event_tt, &event_tm);
1368                         }
1369                         else {
1370                                 localtime_r(&event_tt, &event_tm);
1371                         }
1372
1373                         if ( (event_tm.tm_year == today_tm.tm_year)
1374                                 && (event_tm.tm_mon == today_tm.tm_mon)
1375                                 && (event_tm.tm_mday == today_tm.tm_mday)
1376                         ) {
1377
1378                                 p = icalcomponent_get_first_property(Cal->cal, ICAL_SUMMARY_PROPERTY);
1379                                 if (p == NULL) {
1380                                         p = icalproperty_new_summary(_("Untitled Task"));
1381                                         icalcomponent_add_property(Cal->cal, p);
1382                                 }
1383                                 if (p != NULL) {
1384
1385
1386                                         if (WCC->wc_view == VIEW_TASKS) {
1387                                                 wprintf("<a href=\"display_edit_task"
1388                                                         "?msgnum=%ld"
1389                                                         "?return_to_summary=1"
1390                                                         "?gotofirst=",
1391                                                         Cal->cal_msgnum
1392                                                 );
1393                                                 escputs(ChrPtr(WCC->wc_roomname));
1394                                                 wprintf("\">");
1395                                         }
1396                                         else {
1397                                                 wprintf("<a href=\"display_edit_event"
1398                                                         "?msgnum=%ld"
1399                                                         "?calview=summary"
1400                                                         "?year=%d"
1401                                                         "?month=%d"
1402                                                         "?day=%d"
1403                                                         "?gotofirst=",
1404                                                         Cal->cal_msgnum,
1405                                                         today_tm.tm_year + 1900,
1406                                                         today_tm.tm_mon + 1,
1407                                                         today_tm.tm_mday
1408                                                 );
1409                                                 escputs(ChrPtr(WCC->wc_roomname));
1410                                                 wprintf("\">");
1411                                         }
1412                                         escputs((char *) icalproperty_get_comment(p));
1413                                         if (!all_day_event) {
1414                                                 wprintf(" (%s)", timestring);
1415                                         }
1416                                         wprintf("</a><br />\n");
1417                                         ++num_displayed;
1418                                 }
1419                         }
1420                 }
1421         }
1422         DeleteHashPos(&Pos);
1423         DeleteHash(&WC->disp_cal_items);
1424         return(num_displayed);
1425 }
1426
1427 /*
1428  * Parse the URL variables in order to determine the scope and display of a calendar view
1429  */
1430 int calendar_GetParamsGetServerCall(SharedMessageStatus *Stat,
1431                                     void **ViewSpecific,
1432                                     long oper,
1433                                     char *cmd,
1434                                     long len)
1435 {
1436         calview *c;
1437         time_t now;
1438         struct tm tm;
1439         char cv[32];
1440
1441         int span = 3888000;
1442
1443         c = (calview*) malloc(sizeof(calview));
1444         memset(c, 0, sizeof(calview));
1445         *ViewSpecific = (void*)c;
1446
1447         Stat->load_seen = 1;
1448         strcpy(cmd, "MSGS ALL");
1449         Stat->maxmsgs = 32767;
1450
1451         /* In case no date was specified, go with today */
1452         now = time(NULL);
1453         localtime_r(&now, &tm);
1454         c->year = tm.tm_year + 1900;
1455         c->month = tm.tm_mon + 1;
1456         c->day = tm.tm_mday;
1457
1458         /* Now see if a date was specified */
1459         if (havebstr("year")) c->year = ibstr("year");
1460         if (havebstr("month")) c->month = ibstr("month");
1461         if (havebstr("day")) c->day = ibstr("day");
1462
1463         /* How would you like that cooked? */
1464         if (havebstr("calview")) {
1465                 strcpy(cv, bstr("calview"));
1466         }
1467         else {
1468                 strcpy(cv, "month");
1469         }
1470
1471         /* Display the selected view */
1472         if (!strcasecmp(cv, "day")) {
1473                 c->view = calview_day;
1474         }
1475         else if (!strcasecmp(cv, "week")) {
1476                 c->view = calview_week;
1477         }
1478         else if (!strcasecmp(cv, "summary")) {  /* shouldn't ever happen, but just in case */
1479                 c->view = calview_day;
1480         }
1481         else {
1482                 if (WC->wc_view == VIEW_CALBRIEF) {
1483                         c->view = calview_brief;
1484                 }
1485                 else {
1486                         c->view = calview_month;
1487                 }
1488         }
1489
1490         /* Now try and set the lower and upper bounds so that we don't
1491          * burn too many cpu cycles parsing data way in the past or future
1492          */
1493
1494         tm.tm_year = c->year - 1900;
1495         tm.tm_mon = c->month - 1;
1496         tm.tm_mday = c->day;
1497         now = mktime(&tm);
1498
1499         if (c->view == calview_month)   span = 3888000;
1500         if (c->view == calview_brief)   span = 3888000;
1501         if (c->view == calview_week)    span = 604800;
1502         if (c->view == calview_day)     span = 86400;
1503         if (c->view == calview_summary) span = 86400;
1504
1505         c->lower_bound = now - span;
1506         c->upper_bound = now + span;
1507         return 200;
1508 }
1509
1510
1511
1512 /*
1513  * Render a calendar view from data previously loaded into memory
1514  */
1515 int calendar_RenderView_or_Tail(SharedMessageStatus *Stat,
1516                                 void **ViewSpecific,
1517                                 long oper)
1518 {
1519         calview *c = (calview*) *ViewSpecific;
1520
1521         if (c->view == calview_day) {
1522                 calendar_day_view(c->year, c->month, c->day);
1523         }
1524         else if (c->view == calview_week) {
1525                 calendar_week_view(c->year, c->month, c->day);
1526         }
1527         else {
1528                 if (WC->wc_view == VIEW_CALBRIEF) {
1529                         calendar_brief_month_view(c->year, c->month, c->day);
1530                 }
1531                 else {
1532                         calendar_month_view(c->year, c->month, c->day);
1533                 }
1534         }
1535
1536         /* Free the in-memory list of calendar items */
1537         DeleteHash(&WC->disp_cal_items);
1538         return 0;
1539 }
1540
1541
1542
1543
1544