webcit/calendar_view.c

   1 /*
   2  * $Id$
   3  *
   4  * Handles the HTML display of calendar items.
   5  *
   6  * Copyright (c) 1996-2010 by the citadel.org team
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation; either version 3 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  21  */
  22
  23 #include "webcit.h"
  24 #include "webserver.h"
  25 #include "calendar.h"
  26
  27 /* These define how high the hour rows are in the day view */
  28 #define TIMELINE        30
  29 #define EXTRATIMELINE   (TIMELINE / 2)
  30
  31 void embeddable_mini_calendar(int year, int month)
  32 {
  33         struct tm starting_tm;
  34         struct tm tm;
  35         time_t thetime;
  36         int i;
  37         time_t previous_month;
  38         time_t next_month;
  39         time_t colheader_time;
  40         struct tm colheader_tm;
  41         char colheader_label[32];
  42         long weekstart = 0;
  43         char url[256];
  44         char div_id[256];
  45
  46         snprintf(div_id, sizeof div_id, "mini_calendar_%d", rand() );
  47
  48         /* Determine what day to start.  If an impossible value is found, start on Sunday.
  49         */
  50         get_pref_long("weekstart", &weekstart, 17);
  51         if (weekstart > 6) weekstart = 0;
  52
  53         /*
  54         * Now back up to the 1st of the month...
  55         */
  56         memset(&starting_tm, 0, sizeof(struct tm));
  57
  58         starting_tm.tm_year = year - 1900;
  59         starting_tm.tm_mon = month - 1;
  60         starting_tm.tm_mday = 1;
  61         thetime = mktime(&starting_tm);
  62
  63         memcpy(&tm, &starting_tm, sizeof(struct tm));
  64         while (tm.tm_mday != 1) {
  65                 thetime = thetime - (time_t)86400;      /* go back 24 hours */
  66                 localtime_r(&thetime, &tm);
  67         }
  68
  69         /* Determine previous and next months ... for links */
  70         previous_month = thetime - (time_t)864000L;     /* back 10 days */
  71         next_month = thetime + (time_t)(31L * 86400L);  /* ahead 31 days */
  72
  73         /* Now back up until we're on the user's preferred start day */
  74         localtime_r(&thetime, &tm);
  75         while (tm.tm_wday != weekstart) {
  76                 thetime = thetime - (time_t)86400;      /* go back 24 hours */
  77                 localtime_r(&thetime, &tm);
  78         }
  79
  80         wc_printf("<div class=\"mini_calendar\" id=\"%s\">\n", div_id);
  81
  82         /* Previous month link */
  83         localtime_r(&previous_month, &tm);
  84         wc_printf("<a href=\"javascript:minical_change_month(%d,%d);\">&laquo;</a>",
  85                 (int)(tm.tm_year)+1900, tm.tm_mon + 1);
  86
  87         wc_strftime(colheader_label, sizeof colheader_label, "%B", &starting_tm);
  88         wc_printf("&nbsp;&nbsp;"
  89                 "<span class=\"mini_calendar_month_label\">"
  90                 "%s %d"
  91                 "</span>"
  92                 "&nbsp;&nbsp;", colheader_label, year);
  93
  94         /* Next month link */
  95         localtime_r(&next_month, &tm);
  96         wc_printf("<a href=\"javascript:minical_change_month(%d,%d);\">&raquo;</a>",
  97                 (int)(tm.tm_year)+1900, tm.tm_mon + 1);
  98
  99         wc_printf("<table border=\"0\" cellpadding=\"1\" cellspacing=\"1\" class=\"mini_calendar_days\">"
 100                 "<tr>");
 101         colheader_time = thetime;
 102         for (i=0; i<7; ++i) {
 103                 colheader_time = thetime + (i * 86400) ;
 104                 localtime_r(&colheader_time, &colheader_tm);
 105                 wc_strftime(colheader_label, sizeof colheader_label, "%A", &colheader_tm);
 106                 wc_printf("<th>%c</th>", colheader_label[0]);
 107
 108         }
 109         wc_printf("</tr>\n");
 110
 111
 112         /* Now do 35 or 42 days */
 113         for (i = 0; i < 42; ++i) {
 114                 localtime_r(&thetime, &tm);
 115
 116                 if (i < 35) {
 117
 118                         /* Before displaying Sunday, start a new row */
 119                         if ((i % 7) == 0) {
 120                                 wc_printf("<tr>");
 121                         }
 122
 123                         if (tm.tm_mon == month-1) {
 124                                 snprintf(url, sizeof url, "readfwd?calview=day?year=%d?month=%d?day=%d",
 125                                         tm.tm_year+1900, tm.tm_mon+1, tm.tm_mday);
 126                                 wc_printf("<td><a href=\"%s\">%d</a></td>", url, tm.tm_mday);
 127                         }
 128                         else {
 129                                 wc_printf("<td> </td>");
 130                         }
 131
 132                         /* After displaying one week, end the row */
 133                         if ((i % 7) == 6) {
 134                                 wc_printf("</tr>\n");
 135                         }
 136
 137                 }
 138
 139                 thetime += (time_t)86400;               /* ahead 24 hours */
 140         }
 141
 142         wc_printf("</table>"                    /* end of inner table */
 143                 "</div>\n");
 144
 145         StrBufAppendPrintf(WC->trailing_javascript,
 146                 "       function minical_change_month(year, month) {                                    \n"
 147                 "               p = 'year=' + year + '&month=' + month                                  \n"
 148                 "                       + '&r=' + CtdlRandomString();                                   \n"
 149                 "               new Ajax.Updater('%s', 'mini_calendar',                                 \n"
 150                 "                       { method: 'get', parameters: p, evalScripts: true } );          \n"
 151                 "       }                                                                               \n"
 152                 "",
 153                 div_id
 154         );
 155
 156 }
 157
 158 /*
 159  * ajax embedder for the above mini calendar
 160  */
 161 void ajax_mini_calendar(void)
 162 {
 163         embeddable_mini_calendar( ibstr("year"), ibstr("month"));
 164 }
 165
 166
 167 /*
 168  * Display one day of a whole month view of a calendar
 169  */
 170 void calendar_month_view_display_events(int year, int month, int day)
 171 {
 172         long hklen;
 173         const char *HashKey;
 174         void *vCal;
 175         HashPos *Pos;
 176         disp_cal *Cal;
 177         icalproperty *p = NULL;
 178         icalproperty *q = NULL;
 179         struct icaltimetype t;
 180         struct icaltimetype end_t;
 181         struct icaltimetype today_start_t;
 182         struct icaltimetype today_end_t;
 183         struct icaltimetype today_t;
 184         struct tm starting_tm;
 185         struct tm ending_tm;
 186         int all_day_event = 0;
 187         int show_event = 0;
 188         char buf[256];
 189         wcsession *WCC = WC;
 190         time_t tt;
 191
 192         if (GetCount(WCC->disp_cal_items) == 0) {
 193                 wc_printf("<br /><br /><br />\n");
 194                 return;
 195         }
 196
 197         /*
 198          * Create an imaginary event which spans the 24 hours of today.  Any events which
 199          * overlap with this one take place at least partially in this day.  We have to
 200          * convert it from a struct tm in order to make it UTC.
 201          */
 202         memset(&starting_tm, 0, sizeof(struct tm));
 203         starting_tm.tm_year = year - 1900;
 204         starting_tm.tm_mon = month - 1;
 205         starting_tm.tm_mday = day;
 206         starting_tm.tm_hour = 0;
 207         starting_tm.tm_min = 0;
 208         today_start_t = icaltime_from_timet_with_zone(mktime(&starting_tm), 0, icaltimezone_get_utc_timezone());
 209         today_start_t.is_utc = 1;
 210
 211         memset(&ending_tm, 0, sizeof(struct tm));
 212         ending_tm.tm_year = year - 1900;
 213         ending_tm.tm_mon = month - 1;
 214         ending_tm.tm_mday = day;
 215         ending_tm.tm_hour = 23;
 216         ending_tm.tm_min = 59;
 217         today_end_t = icaltime_from_timet_with_zone(mktime(&ending_tm), 0, icaltimezone_get_utc_timezone());
 218         today_end_t.is_utc = 1;
 219
 220         /*
 221          * Create another one without caring about the timezone for all day events.
 222          */
 223         today_t = icaltime_null_date();
 224         today_t.year = year;
 225         today_t.month = month;
 226         today_t.day = day;
 227
 228         /*
 229          * Now loop through our list of events to see which ones occur today.
 230          */
 231         Pos = GetNewHashPos(WCC->disp_cal_items, 0);
 232         while (GetNextHashPos(WCC->disp_cal_items, Pos, &hklen, &HashKey, &vCal)) {
 233                 Cal = (disp_cal*)vCal;
 234                 all_day_event = 0;
 235                 q = icalcomponent_get_first_property(Cal->cal, ICAL_DTSTART_PROPERTY);
 236                 if (q != NULL) {
 237                         t = icalproperty_get_dtstart(q);
 238                 }
 239                 else {
 240                         memset(&t, 0, sizeof t);
 241                 }
 242                 q = icalcomponent_get_first_property(Cal->cal, ICAL_DTEND_PROPERTY);
 243                 if (q != NULL) {
 244                         end_t = icalproperty_get_dtend(q);
 245                 }
 246                 else {
 247                         memset(&end_t, 0, sizeof end_t);
 248                 }
 249                 if (t.is_date) all_day_event = 1;
 250
 251                 if (all_day_event)
 252                 {
 253                         show_event = ical_ctdl_is_overlap(t, end_t, today_t, icaltime_null_time());
 254                 }
 255                 else
 256                 {
 257                         show_event = ical_ctdl_is_overlap(t, end_t, today_start_t, today_end_t);
 258                 }
 259
 260                 /*
 261                  * If we determined that this event occurs today, then display it.
 262                  */
 263                 if (show_event) {
 264                         p = icalcomponent_get_first_property(Cal->cal, ICAL_SUMMARY_PROPERTY);
 265                         if (p == NULL) {
 266                                 p = icalproperty_new_summary(_("Untitled Event"));
 267                                 icalcomponent_add_property(Cal->cal, p);
 268                         }
 269                         if (p != NULL) {
 270
 271                                 if (all_day_event) {
 272                                         wc_printf("<table border=\"0\" cellpadding=\"2\"><TR>"
 273                                                 "<td bgcolor=\"#CCCCDD\">"
 274                                                 );
 275                                 }
 276
 277
 278                                 wc_printf("<font size=\"-1\">"
 279                                         "<a class=\"event%s\" href=\"display_edit_event?"
 280                                         "msgnum=%ld?calview=month?year=%d?month=%d?day=%d\">"
 281                                         ,
 282                                         (Cal->unread)?"_unread":"_read",
 283                                         Cal->cal_msgnum,
 284                                         year, month, day
 285                                 );
 286
 287                                 escputs((char *) icalproperty_get_comment(p));
 288
 289                                 wc_printf("<span class=\"tooltip\"><span class=\"btttop\"></span><span class=\"bttmiddle\">");
 290
 291                                 wc_printf("<i>%s: %s</i><br />", _("From"), Cal->from);
 292                                 wc_printf("<i>%s</i> ",          _("Summary:"));
 293                                 escputs((char *)icalproperty_get_comment(p));
 294                                 wc_printf("<br />");
 295
 296                                 q = icalcomponent_get_first_property(
 297                                         Cal->cal,
 298                                         ICAL_LOCATION_PROPERTY);
 299                                 if (q) {
 300                                         wc_printf("<i>%s</i> ", _("Location:"));
 301                                         escputs((char *)icalproperty_get_comment(q));
 302                                         wc_printf("<br />");
 303                                 }
 304
 305                                 /*
 306                                  * Only show start/end times if we're actually looking at the VEVENT
 307                                  * component.  Otherwise it shows bogus dates for e.g. timezones
 308                                  */
 309                                 if (icalcomponent_isa(Cal->cal) == ICAL_VEVENT_COMPONENT) {
 310
 311                                         q = icalcomponent_get_first_property(Cal->cal, ICAL_DTSTART_PROPERTY);
 312                                         if (q != NULL) {
 313                                                 int no_end = 0;
 314
 315                                                 t = icalproperty_get_dtstart(q);
 316                                                 q = icalcomponent_get_first_property(Cal->cal, ICAL_DTEND_PROPERTY);
 317                                                 if (q != NULL) {
 318                                                         end_t = icalproperty_get_dtend(q);
 319                                                 }
 320                                                 else {
 321                                                         /*
 322                                                          * events with starting date/time equal
 323                                                          * ending date/time might get only
 324                                                          * DTSTART but no DTEND
 325                                                          */
 326                                                         no_end = 1;
 327                                                 }
 328
 329                                                 if (t.is_date) {
 330                                                         /* all day event */
 331                                                         struct tm d_tm;
 332
 333                                                         if (!no_end) {
 334                                                                 /* end given, have to adjust it */
 335                                                                 icaltime_adjust(&end_t, -1, 0, 0, 0);
 336                                                         }
 337                                                         memset(&d_tm, 0, sizeof d_tm);
 338                                                         d_tm.tm_year = t.year - 1900;
 339                                                         d_tm.tm_mon = t.month - 1;
 340                                                         d_tm.tm_mday = t.day;
 341                                                         wc_strftime(buf, sizeof buf, "%x", &d_tm);
 342
 343                                                         if (no_end || !icaltime_compare(t, end_t)) {
 344                                                                 wc_printf("<i>%s</i> %s<br>",
 345                                                                         _("Date:"), buf);
 346                                                         }
 347                                                         else {
 348                                                                 wc_printf("<i>%s</i> %s<br>",
 349                                                                         _("Starting date:"), buf);
 350                                                                 d_tm.tm_year = end_t.year - 1900;
 351                                                                 d_tm.tm_mon = end_t.month - 1;
 352                                                                 d_tm.tm_mday = end_t.day;
 353                                                                 wc_strftime(buf, sizeof buf, "%x", &d_tm);
 354                                                                 wc_printf("<i>%s</i> %s<br>",
 355                                                                         _("Ending date:"), buf);
 356                                                         }
 357                                                 }
 358                                                 else {
 359                                                         tt = icaltime_as_timet(t);
 360                                                         webcit_fmt_date(buf, 256, tt, DATEFMT_BRIEF);
 361                                                         if (no_end || !icaltime_compare(t, end_t)) {
 362                                                                 wc_printf("<i>%s</i> %s<br>",
 363                                                                         _("Date/time:"), buf);
 364                                                         }
 365                                                         else {
 366                                                                 wc_printf("<i>%s</i> %s<br>",
 367                                                                         _("Starting date/time:"), buf);
 368                                                                 tt = icaltime_as_timet(end_t);
 369                                                                 webcit_fmt_date(buf, 256, tt, DATEFMT_BRIEF);
 370                                                                 wc_printf("<i>%s</i> %s<br>", _("Ending date/time:"), buf);
 371                                                         }
 372
 373                                                 }
 374                                         }
 375
 376                                 }
 377
 378                                 q = icalcomponent_get_first_property(Cal->cal, ICAL_DESCRIPTION_PROPERTY);
 379                                 if (q) {
 380                                         wc_printf("<i>%s</i> ", _("Notes:"));
 381                                         escputs((char *)icalproperty_get_comment(q));
 382                                         wc_printf("<br />");
 383                                 }
 384
 385                                 wc_printf("</span><span class=\"bttbottom\"></span></span>");
 386                                 wc_printf("</a></font><br />\n");
 387
 388                                 if (all_day_event) {
 389                                         wc_printf("</td></tr></table>");
 390                                 }
 391
 392                         }
 393
 394                 }
 395
 396
 397         }
 398         DeleteHashPos(&Pos);
 399 }
 400
 401
 402 /*
 403  * Display one day of a whole month view of a calendar
 404  */
 405 void calendar_month_view_brief_events(time_t thetime, const char *daycolor) {
 406         long hklen;
 407         const char *HashKey;
 408         void *vCal;
 409         HashPos *Pos;
 410         time_t event_tt;
 411         time_t event_tts;
 412         time_t event_tte;
 413         wcsession *WCC = WC;
 414         struct tm event_tms;
 415         struct tm event_tme;
 416         struct tm today_tm;
 417         icalproperty *p;
 418         icalproperty *e;
 419         struct icaltimetype t;
 420         disp_cal *Cal;
 421         int month, day, year;
 422         int all_day_event = 0;
 423         char *timeformat;
 424         int time_format;
 425
 426         time_format = get_time_format_cached ();
 427
 428         if (time_format == WC_TIMEFORMAT_24) timeformat="%k:%M";
 429         else timeformat="%I:%M %p";
 430
 431         localtime_r(&thetime, &today_tm);
 432         month = today_tm.tm_mon + 1;
 433         day = today_tm.tm_mday;
 434         year = today_tm.tm_year + 1900;
 435
 436         Pos = GetNewHashPos(WCC->disp_cal_items, 0);
 437         while (GetNextHashPos(WCC->disp_cal_items, Pos, &hklen, &HashKey, &vCal)) {
 438                 Cal = (disp_cal*)vCal;
 439                 p = icalcomponent_get_first_property(Cal->cal, ICAL_DTSTART_PROPERTY);
 440                 if (p != NULL) {
 441                         t = icalproperty_get_dtstart(p);
 442                         event_tt = icaltime_as_timet(t);
 443                         event_tts=event_tt;
 444                         if (t.is_date) all_day_event = 1;
 445                         else all_day_event = 0;
 446
 447                         if (all_day_event) {
 448                                 gmtime_r(&event_tts, &event_tms);
 449                         }
 450                         else {
 451                                 localtime_r(&event_tts, &event_tms);
 452                         }
 453                         /* \todo epoch &! daymask */
 454                         if ((event_tms.tm_year == today_tm.tm_year)
 455                                 && (event_tms.tm_mon == today_tm.tm_mon)
 456                         && (event_tms.tm_mday == today_tm.tm_mday)) {
 457
 458
 459                         char sbuf[255];
 460                         char ebuf[255];
 461
 462                         p = icalcomponent_get_first_property(
 463                                 Cal->cal,
 464                                 ICAL_SUMMARY_PROPERTY);
 465                         if (p == NULL) {
 466                                 p = icalproperty_new_summary(_("Untitled Event"));
 467                                 icalcomponent_add_property(Cal->cal, p);
 468                         }
 469                         e = icalcomponent_get_first_property(
 470                                 Cal->cal,
 471                                 ICAL_DTEND_PROPERTY);
 472                         if ((p != NULL) && (e != NULL)) {
 473                                 time_t difftime;
 474                                 int hours, minutes;
 475                                 t = icalproperty_get_dtend(e);
 476                                 event_tte = icaltime_as_timet(t);
 477                                 localtime_r(&event_tte, &event_tme);
 478                                 difftime=(event_tte-event_tts)/60;
 479                                 hours=(int)(difftime / 60);
 480                                 minutes=difftime % 60;
 481                                 wc_printf("<tr><td bgcolor='%s'>%i:%2i</td><td bgcolor='%s'>"
 482                                         "<font size=\"-1\">"
 483                                         "<a class=\"event%s\" href=\"display_edit_event?msgnum=%ld?calview=calbrief?year=%s?month=%s?day=%s\">",
 484                                         daycolor,
 485                                         hours, minutes,
 486                                         (Cal->unread)?"_unread":"_read",
 487                                         daycolor,
 488                                         Cal->cal_msgnum,
 489                                         bstr("year"),
 490                                         bstr("month"),
 491                                         bstr("day")
 492                                         );
 493
 494                                 escputs((char *)
 495                                         icalproperty_get_comment(p));
 496                                 /* \todo: allso ammitime format */
 497                                 wc_strftime(&sbuf[0], sizeof(sbuf), timeformat, &event_tms);
 498                                 wc_strftime(&ebuf[0], sizeof(sbuf), timeformat, &event_tme);
 499
 500                                 wc_printf("</a></font></td>"
 501                                         "<td bgcolor='%s'>%s</td><td bgcolor='%s'>%s</td></tr>",
 502                                         daycolor,
 503                                         sbuf,
 504                                         daycolor,
 505                                         ebuf);
 506                                 }
 507
 508                         }
 509
 510
 511                 }
 512         }
 513         DeleteHashPos(&Pos);
 514 }
 515
 516
 517 /*
 518  * view one month. pretty view
 519  */
 520 void calendar_month_view(int year, int month, int day) {
 521         struct tm starting_tm;
 522         struct tm tm;
 523         struct tm today_tm;
 524         time_t thetime;
 525         int i;
 526         time_t previous_month;
 527         time_t next_month;
 528         time_t colheader_time;
 529         time_t today_timet;
 530         struct tm colheader_tm;
 531         char colheader_label[32];
 532         long weekstart = 0;
 533
 534         /*
 535          * Make sure we know which day is today.
 536          */
 537         today_timet = time(NULL);
 538         localtime_r(&today_timet, &today_tm);
 539
 540         /*
 541          * Determine what day to start.  If an impossible value is found, start on Sunday.
 542          */
 543         get_pref_long("weekstart", &weekstart, 17);
 544         if (weekstart > 6) weekstart = 0;
 545
 546         /*
 547          * Now back up to the 1st of the month...
 548          */
 549         memset(&starting_tm, 0, sizeof(struct tm));
 550
 551         starting_tm.tm_year = year - 1900;
 552         starting_tm.tm_mon = month - 1;
 553         starting_tm.tm_mday = day;
 554         thetime = mktime(&starting_tm);
 555
 556         memcpy(&tm, &starting_tm, sizeof(struct tm));
 557         while (tm.tm_mday != 1) {
 558                 thetime = thetime - (time_t)86400;      /* go back 24 hours */
 559                 localtime_r(&thetime, &tm);
 560         }
 561
 562         /* Determine previous and next months ... for links */
 563         previous_month = thetime - (time_t)864000L;     /* back 10 days */
 564         next_month = thetime + (time_t)(31L * 86400L);  /* ahead 31 days */
 565
 566         /* Now back up until we're on the user's preferred start day */
 567         localtime_r(&thetime, &tm);
 568         while (tm.tm_wday != weekstart) {
 569                 thetime = thetime - (time_t)86400;      /* go back 24 hours */
 570                 localtime_r(&thetime, &tm);
 571         }
 572
 573         /* Outer table (to get the background color) */
 574         wc_printf("<div class=\"fix_scrollbar_bug\">"
 575                 "<table class=\"calendar\"> \n <tr><td>");
 576
 577         wc_printf("<table width=\"100%%\" border=\"0\" cellpadding=\"0\" cellspacing=\"0\"><tr>\n");
 578
 579         wc_printf("<td align=\"center\">");
 580
 581         localtime_r(&previous_month, &tm);
 582         wc_printf("<a href=\"readfwd?calview=month?year=%d?month=%d?day=1\">",
 583                 (int)(tm.tm_year)+1900, tm.tm_mon + 1);
 584         wc_printf("<img alt=\"%s\" align=\"middle\" src=\"static/prevdate_32x.gif\" border=\"0\"></a>\n", _("previous"));
 585
 586         wc_strftime(colheader_label, sizeof colheader_label, "%B", &starting_tm);
 587         wc_printf("&nbsp;&nbsp;"
 588                 "<font size=\"+1\" color=\"#FFFFFF\">"
 589                 "%s %d"
 590                 "</font>"
 591                 "&nbsp;&nbsp;", colheader_label, year);
 592
 593         localtime_r(&next_month, &tm);
 594         wc_printf("<a href=\"readfwd?calview=month?year=%d?month=%d?day=1\">",
 595                 (int)(tm.tm_year)+1900, tm.tm_mon + 1);
 596         wc_printf("<img alt=\"%s\" align=\"middle\" src=\"static/nextdate_32x.gif\" border=\"0\"></A>\n", _("next"));
 597
 598         wc_printf("</td></tr></table>\n");
 599
 600         /* Inner table (the real one) */
 601         wc_printf("<table width=\"100%%\" border=\"0\" cellpadding=\"1\" cellspacing=\"1\" "
 602                 "bgcolor='#204B78' id=\"inner_month\"><tr>");
 603         wc_printf("<th align=\"center\" width=\"2%%\"></th>");
 604         colheader_time = thetime;
 605         for (i=0; i<7; ++i) {
 606                 colheader_time = thetime + (i * 86400) ;
 607                 localtime_r(&colheader_time, &colheader_tm);
 608                 wc_strftime(colheader_label, sizeof colheader_label, "%A", &colheader_tm);
 609                 wc_printf("<th align=\"center\" width=\"14%%\">"
 610                         "<font color=\"#FFFFFF\">%s</font></th>", colheader_label);
 611
 612         }
 613         wc_printf("</tr>\n");
 614
 615
 616         /* Now do 35 or 42 days */
 617         localtime_r(&thetime, &tm);
 618         for (i = 0; i<42; ++i) {
 619
 620                 /* Before displaying the first day of the week, start a new row */
 621                 if ((i % 7) == 0) {
 622                         wc_printf("<tr><td class=\"week_of_year\">");
 623                         wc_strftime(colheader_label, sizeof colheader_label, "%V", &tm);
 624                         wc_printf("%s ", colheader_label);
 625                 }
 626
 627                 wc_printf("<td class=\"cal%s\"><div class=\"day\">",
 628                         ((tm.tm_mon != month-1) ? "out" :
 629                                 (((tm.tm_year == today_tm.tm_year) && (tm.tm_mon == today_tm.tm_mon) && (tm.tm_mday == today_tm.tm_mday)) ? "today" :
 630                                 ((tm.tm_wday==0 || tm.tm_wday==6) ? "weekend" :
 631                                         "day")))
 632                         );
 633                 if ((i==0) || (tm.tm_mday == 1)) {
 634                         wc_strftime(colheader_label, sizeof colheader_label, "%B", &tm);
 635                         wc_printf("%s ", colheader_label);
 636                 }
 637                 wc_printf("<a href=\"readfwd?calview=day?year=%d?month=%d?day=%d\">"
 638                         "%d</a></div>",
 639                         tm.tm_year + 1900,
 640                         tm.tm_mon + 1,
 641                         tm.tm_mday,
 642                         tm.tm_mday);
 643
 644                 /* put the data here, stupid */
 645                 calendar_month_view_display_events(
 646                         tm.tm_year + 1900,
 647                         tm.tm_mon + 1,
 648                         tm.tm_mday
 649                         );
 650
 651                 wc_printf("</td>");
 652
 653                 /* After displaying the last day of the week, end the row */
 654                 if ((i % 7) == 6) {
 655                         wc_printf("</tr>\n");
 656                 }
 657
 658                 thetime += (time_t)86400;               /* ahead 24 hours */
 659                 localtime_r(&thetime, &tm);
 660
 661                 if ( ((i % 7) == 6) && (tm.tm_mon != month-1) && (tm.tm_mday < 15) ) {
 662                         i = 100;        /* break out of the loop */
 663                 }
 664         }
 665
 666         wc_printf("</table>"                    /* end of inner table */
 667                 "</td></tr></table>"            /* end of outer table */
 668                 "</div>\n");
 669 }
 670
 671 /*
 672  * view one month. brief view
 673  */
 674 void calendar_brief_month_view(int year, int month, int day) {
 675         struct tm starting_tm;
 676         struct tm tm;
 677         time_t thetime;
 678         int i;
 679         time_t previous_month;
 680         time_t next_month;
 681         char month_label[32];
 682
 683         /* Determine what day to start.
 684          * First, back up to the 1st of the month...
 685          */
 686         memset(&starting_tm, 0, sizeof(struct tm));
 687         starting_tm.tm_year = year - 1900;
 688         starting_tm.tm_mon = month - 1;
 689         starting_tm.tm_mday = day;
 690         thetime = mktime(&starting_tm);
 691
 692         memcpy(&tm, &starting_tm, sizeof(struct tm));
 693         while (tm.tm_mday != 1) {
 694                 thetime = thetime - (time_t)86400;      /* go back 24 hours */
 695                 localtime_r(&thetime, &tm);
 696         }
 697
 698         /* Determine previous and next months ... for links */
 699         previous_month = thetime - (time_t)864000L;     /* back 10 days */
 700         next_month = thetime + (time_t)(31L * 86400L);  /* ahead 31 days */
 701
 702         /* Now back up until we're on a Sunday */
 703         localtime_r(&thetime, &tm);
 704         while (tm.tm_wday != 0) {
 705                 thetime = thetime - (time_t)86400;      /* go back 24 hours */
 706                 localtime_r(&thetime, &tm);
 707         }
 708
 709         /* Outer table (to get the background color) */
 710         wc_printf("<div class=\"fix_scrollbar_bug\">"
 711                 "<table width=\"100%%\" border=\"0\" cellpadding=\"0\" cellspacing=\"0\" "
 712                 "bgcolor=#204B78><tr><td>\n");
 713
 714         wc_printf("<table width=\"100%%\" border=\"0\" cellpadding=\"0\" cellspacing=\"0\"><tr>\n");
 715
 716         wc_printf("<td align=\"center\">");
 717
 718         localtime_r(&previous_month, &tm);
 719         wc_printf("<a href=\"readfwd?calview=month?year=%d?month=%d?day=1\">",
 720                 (int)(tm.tm_year)+1900, tm.tm_mon + 1);
 721         wc_printf("<img alt=\"%s\" align=\"middle\" src=\"static/prevdate_32x.gif\" border=\"0\"></a>\n", _("previous"));
 722
 723         wc_strftime(month_label, sizeof month_label, "%B", &tm);
 724         wc_printf("&nbsp;&nbsp;"
 725                 "<font size=\"+1\" color=\"#FFFFFF\">"
 726                 "%s %d"
 727                 "</font>"
 728                 "&nbsp;&nbsp;", month_label, year);
 729
 730         localtime_r(&next_month, &tm);
 731         wc_printf("<a href=\"readfwd?calview=month?year=%d?month=%d?day=1\">",
 732                 (int)(tm.tm_year)+1900, tm.tm_mon + 1);
 733         wc_printf("<img alt=\"%s\" align=\"middle\" src=\"static/nextdate_32x.gif\" border=\"0\"></a>\n", _("next"));
 734
 735         wc_printf("</td></tr></table>\n");
 736
 737         /* Inner table (the real one) */
 738         wc_printf("<table width=\"100%%\" border=\"0\" cellpadding=\"1\" cellspacing=\"1\" "
 739                 "bgcolor=#EEEECC><TR>");
 740         wc_printf("</tr>\n");
 741         wc_printf("<tr><td colspan=\"100%%\">\n");
 742
 743         /* Now do 35 days */
 744         for (i = 0; i < 35; ++i) {
 745                 char weeknumber[255];
 746                 char weekday_name[32];
 747                 char *daycolor;
 748                 localtime_r(&thetime, &tm);
 749
 750
 751                 /* Before displaying Sunday, start a new CELL */
 752                 if ((i % 7) == 0) {
 753                         wc_strftime(&weeknumber[0], sizeof(weeknumber), "%U", &tm);
 754                         wc_printf("<table border='0' bgcolor=\"#EEEECC\" width='100%%'> <tr><th colspan='4'>%s %s</th></tr>"
 755                                 "   <tr><td>%s</td><td width='70%%'>%s</td><td>%s</td><td>%s</td></tr>\n",
 756                                 _("Week"),
 757                                 weeknumber,
 758                                 _("Hours"),
 759                                 _("Subject"),
 760                                 _("Start"),
 761                                 _("End")
 762                                 );
 763                 }
 764
 765                 daycolor=((tm.tm_mon != month-1) ? "DDDDDD" :
 766                         ((tm.tm_wday==0 || tm.tm_wday==6) ? "EEEECC" :
 767                                 "FFFFFF"));
 768
 769                 /* Day Header */
 770                 wc_strftime(weekday_name, sizeof weekday_name, "%A", &tm);
 771                 wc_printf("<tr><td bgcolor='%s' colspan='1' align='left'> %s,%i."
 772                         "</td><td bgcolor='%s' colspan='3'><hr></td></tr>\n",
 773                         daycolor,
 774                         weekday_name,tm.tm_mday,
 775                         daycolor);
 776
 777                 /* put the data of one day  here, stupid */
 778                 calendar_month_view_brief_events(thetime, daycolor);
 779
 780
 781                 /* After displaying Saturday, end the row */
 782                 if ((i % 7) == 6) {
 783                         wc_printf("</td></tr></table>\n");
 784                 }
 785
 786                 thetime += (time_t)86400;               /* ahead 24 hours */
 787         }
 788
 789         wc_printf("</table>"                    /* end of inner table */
 790                 "</td></tr></table>"            /* end of outer table */
 791                 "</div>\n");
 792 }
 793
 794 /*
 795  * Calendar week view -- not implemented yet, this is a stub function
 796  */
 797 void calendar_week_view(int year, int month, int day) {
 798         wc_printf("<center><i>week view FIXME</i></center><br />\n");
 799 }
 800
 801
 802 /*
 803  * display one day
 804  * Display events for a particular hour of a particular day.
 805  * (Specify hour < 0 to show "all day" events)
 806  *
 807  * dstart and dend indicate which hours our "daytime" begins and end
 808  */
 809 void calendar_day_view_display_events(time_t thetime,
 810         int year,
 811         int month,
 812         int day,
 813         int notime_events,
 814         int dstart,
 815         int dend)
 816 {
 817         long hklen;
 818         const char *HashKey;
 819         void *vCal;
 820         HashPos *Pos;
 821         icalproperty *p = NULL;
 822         icalproperty *q = NULL;
 823         time_t event_tt;
 824         time_t event_tte;
 825         struct tm event_te;
 826         struct tm event_tm;
 827         int show_event = 0;
 828         int all_day_event = 0;
 829         int ongoing_event = 0;
 830         wcsession *WCC = WC;
 831         disp_cal *Cal;
 832         struct icaltimetype t;
 833         struct icaltimetype end_t;
 834         struct icaltimetype today_start_t;
 835         struct icaltimetype today_end_t;
 836         struct icaltimetype today_t;
 837         struct tm starting_tm;
 838         struct tm ending_tm;
 839         int top = 0;
 840         int bottom = 0;
 841         int gap = 1;
 842         int startmin = 0;
 843         int diffmin = 0;
 844         int endmin = 0;
 845
 846         char buf[256];
 847
 848         if (GetCount(WCC->disp_cal_items) == 0) {
 849                 /* nothing to display */
 850                 return;
 851         }
 852
 853         /* Create an imaginary event which spans the current day.  Any events which
 854          * overlap with this one take place at least partially in this day.
 855          */
 856         memset(&starting_tm, 0, sizeof(struct tm));
 857         starting_tm.tm_year = year - 1900;
 858         starting_tm.tm_mon = month - 1;
 859         starting_tm.tm_mday = day;
 860         starting_tm.tm_hour = 0;
 861         starting_tm.tm_min = 0;
 862         today_start_t = icaltime_from_timet_with_zone(mktime(&starting_tm), 0, icaltimezone_get_utc_timezone());
 863         today_start_t.is_utc = 1;
 864
 865         memset(&ending_tm, 0, sizeof(struct tm));
 866         ending_tm.tm_year = year - 1900;
 867         ending_tm.tm_mon = month - 1;
 868         ending_tm.tm_mday = day;
 869         ending_tm.tm_hour = 23;
 870         ending_tm.tm_min = 59;
 871         today_end_t = icaltime_from_timet_with_zone(mktime(&ending_tm), 0, icaltimezone_get_utc_timezone());
 872         today_end_t.is_utc = 1;
 873
 874         /*
 875          * Create another one without caring about the timezone for all day events.
 876          */
 877         today_t = icaltime_null_date();
 878         today_t.year = year;
 879         today_t.month = month;
 880         today_t.day = day;
 881
 882         /* Now loop through our list of events to see which ones occur today.
 883          */
 884         Pos = GetNewHashPos(WCC->disp_cal_items, 0);
 885         while (GetNextHashPos(WCC->disp_cal_items, Pos, &hklen, &HashKey, &vCal)) {
 886                 Cal = (disp_cal*)vCal;
 887
 888                 all_day_event = 0;
 889                 ongoing_event=0;
 890
 891                 q = icalcomponent_get_first_property(Cal->cal, ICAL_DTSTART_PROPERTY);
 892                 if (q != NULL) {
 893                         t = icalproperty_get_dtstart(q);
 894                         event_tt = icaltime_as_timet(t);
 895                         localtime_r(&event_tt, &event_te);
 896                 }
 897                 else {
 898                         memset(&t, 0, sizeof t);
 899                 }
 900
 901                 if (t.is_date) all_day_event = 1;
 902
 903                 q = icalcomponent_get_first_property(Cal->cal, ICAL_DTEND_PROPERTY);
 904                 if (q != NULL) {
 905                         end_t = icalproperty_get_dtend(q);
 906                 }
 907                 else {
 908                         /* no end given means end = start */
 909                         memcpy(&end_t, &t, sizeof(struct icaltimetype));
 910                 }
 911
 912                 if (all_day_event)
 913                 {
 914                         show_event = ical_ctdl_is_overlap(t, end_t, today_t, icaltime_null_time());
 915                         if (icaltime_compare(t, end_t)) {
 916                                 /*
 917                                  * the end date is non-inclusive so adjust it by one
 918                                  * day because our test is inclusive, note that a day is
 919                                  * not to much because we are talking about all day
 920                                  * events
 921                                  */
 922                                 icaltime_adjust(&end_t, -1, 0, 0, 0);
 923                         }
 924                 }
 925                 else
 926                 {
 927                         show_event = ical_ctdl_is_overlap(t, end_t, today_start_t, today_end_t);
 928                 }
 929
 930                 event_tte = icaltime_as_timet(end_t);
 931                 localtime_r(&event_tte, &event_tm);
 932
 933                 /* If we determined that this event occurs today, then display it.
 934                  */
 935                 p = icalcomponent_get_first_property(Cal->cal,ICAL_SUMMARY_PROPERTY);
 936                 if (p == NULL) {
 937                         p = icalproperty_new_summary(_("Untitled Event"));
 938                         icalcomponent_add_property(Cal->cal, p);
 939                 }
 940
 941                 if ((show_event) && (p != NULL)) {
 942
 943                         if ((event_te.tm_mday != day) || (event_tm.tm_mday != day)) ongoing_event = 1;
 944
 945                         if (all_day_event && notime_events)
 946                         {
 947                                 wc_printf("<li class=\"event_framed%s\"> "
 948                                         "<a href=\"display_edit_event?"
 949                                         "msgnum=%ld?calview=day?year=%d?month=%d?day=%d\" "
 950                                         " class=\"event_title\">"
 951                                         ,
 952                                         (Cal->unread)?"_unread":"_read",
 953                                         Cal->cal_msgnum, year, month, day
 954                                 );
 955                                 escputs((char *) icalproperty_get_comment(p));
 956                                 wc_printf("<span class=\"tooltip\"><span class=\"btttop\"></span><span class=\"bttmiddle\">");
 957                                 wc_printf("<i>%s</i><br />",      _("All day event"));
 958                                 wc_printf("<i>%s: %s</i><br />",  _("From"), Cal->from);
 959                                 wc_printf("<i>%s</i> ",           _("Summary:"));
 960                                 escputs((char *) icalproperty_get_comment(p));
 961                                 wc_printf("<br />");
 962                                 q = icalcomponent_get_first_property(Cal->cal,ICAL_LOCATION_PROPERTY);
 963                                 if (q) {
 964                                         wc_printf("<i>%s</i> ", _("Location:"));
 965                                         escputs((char *)icalproperty_get_comment(q));
 966                                         wc_printf("<br />");
 967                                 }
 968                                 if (!icaltime_compare(t, end_t)) { /* one day only */
 969                                         webcit_fmt_date(buf, 256, event_tt, DATEFMT_LOCALEDATE);
 970                                         wc_printf("<i>%s</i> %s<br>", _("Date:"), buf);
 971                                 }
 972                                 else {
 973                                         webcit_fmt_date(buf, 256, event_tt, DATEFMT_LOCALEDATE);
 974                                         wc_printf("<i>%s</i> %s<br>", _("Starting date:"), buf);
 975                                         webcit_fmt_date(buf, 256, event_tte, DATEFMT_LOCALEDATE);
 976                                         wc_printf("<i>%s</i> %s<br>", _("Ending date:"), buf);
 977                                 }
 978                                 q = icalcomponent_get_first_property(Cal->cal,ICAL_DESCRIPTION_PROPERTY);
 979                                 if (q) {
 980                                         wc_printf("<i>%s</i> ", _("Notes:"));
 981                                         escputs((char *)icalproperty_get_comment(q));
 982                                         wc_printf("<br />");
 983                                 }
 984                                 wc_printf("</span><span class=\"bttbottom\"></span></span>");
 985                                 wc_printf("</a> <span>(");
 986                                 wc_printf(_("All day event"));
 987                                 wc_printf(")</span></li>\n");
 988                         }
 989                         else if (ongoing_event && notime_events)
 990                         {
 991                                 wc_printf("<li class=\"event_framed%s\"> "
 992                                         "<a href=\"display_edit_event?"
 993                                         "msgnum=%ld&calview=day?year=%d?month=%d?day=%d\" "
 994                                         " class=\"event_title\">"
 995                                         ,
 996                                         (Cal->unread)?"_unread":"_read",
 997                                         Cal->cal_msgnum, year, month, day
 998                                 );
 999                                 escputs((char *) icalproperty_get_comment(p));
1000                                 wc_printf("<span class=\"tooltip\"><span class=\"btttop\"></span><span class=\"bttmiddle\">");
1001                                 wc_printf("<i>%s</i><br />",     _("Ongoing event"));
1002                                 wc_printf("<i>%s: %s</i><br />", _("From"), Cal->from);
1003                                 wc_printf("<i>%s</i> ",          _("Summary:"));
1004                                 escputs((char *) icalproperty_get_comment(p));
1005                                 wc_printf("<br />");
1006                                 q = icalcomponent_get_first_property(Cal->cal,ICAL_LOCATION_PROPERTY);
1007                                 if (q) {
1008                                         wc_printf("<i>%s</i> ", _("Location:"));
1009                                         escputs((char *)icalproperty_get_comment(q));
1010                                         wc_printf("<br />");
1011                                                                 }
1012                                 webcit_fmt_date(buf, 256, event_tt, DATEFMT_BRIEF);
1013                                 wc_printf("<i>%s</i> %s<br>", _("Starting date/time:"), buf);
1014                                 webcit_fmt_date(buf, 256, event_tte, DATEFMT_BRIEF);
1015                                 wc_printf("<i>%s</i> %s<br>", _("Ending date/time:"), buf);
1016                                 q = icalcomponent_get_first_property(Cal->cal,ICAL_DESCRIPTION_PROPERTY);
1017                                 if (q) {
1018                                         wc_printf("<i>%s</i> ", _("Notes:"));
1019                                         escputs((char *)icalproperty_get_comment(q));
1020                                         wc_printf("<br />");
1021                                 }
1022                                 wc_printf("</span><span class=\"bttbottom\"></span></span>");
1023                                 wc_printf("</a> <span>(");
1024                                 wc_printf(_("Ongoing event"));
1025                                 wc_printf(")</span></li>\n");
1026                         }
1027                         else if (!all_day_event && !notime_events)
1028                         {
1029                                 gap++;
1030
1031                                 if (event_te.tm_mday != day) event_te.tm_hour = 0;
1032                                 if (event_tm.tm_mday != day) event_tm.tm_hour = 24;
1033
1034                                 /* Calculate the location of the top of the box */
1035                                 if (event_te.tm_hour < dstart) {
1036                                         startmin = diffmin = event_te.tm_min / 6;
1037                                         top = (event_te.tm_hour * EXTRATIMELINE) + startmin;
1038                                 }
1039                                 else if ((event_te.tm_hour >= dstart) && (event_te.tm_hour <= dend)) {
1040                                         startmin = diffmin = (event_te.tm_min / 2);
1041                                         top = (dstart * EXTRATIMELINE) + ((event_te.tm_hour - dstart) * TIMELINE) + startmin;
1042                                 }
1043                                 else if (event_te.tm_hour >dend) {
1044                                         startmin = diffmin = event_te.tm_min / 6;
1045                                         top = (dstart * EXTRATIMELINE) + ((dend - dstart - 1) * TIMELINE) + ((event_tm.tm_hour - dend + 1) * EXTRATIMELINE) + startmin ;
1046                                 }
1047                                 else {
1048                                         /* should never get here */
1049                                 }
1050
1051                                 /* Calculate the location of the bottom of the box */
1052                                 if (event_tm.tm_hour < dstart) {
1053                                         endmin = diffmin = event_tm.tm_min / 6;
1054                                         bottom = (event_tm.tm_hour * EXTRATIMELINE) + endmin;
1055                                 }
1056                                 else if ((event_tm.tm_hour >= dstart) && (event_tm.tm_hour <= dend)) {
1057                                         endmin = diffmin = (event_tm.tm_min / 2);
1058                                         bottom = (dstart * EXTRATIMELINE) + ((event_tm.tm_hour - dstart) * TIMELINE) + endmin ;
1059                                 }
1060                                 else if (event_tm.tm_hour >dend) {
1061                                         endmin = diffmin = event_tm.tm_min / 6;
1062                                         bottom = (dstart * EXTRATIMELINE) + ((dend - dstart + 1) * TIMELINE) + ((event_tm.tm_hour - dend - 1) * EXTRATIMELINE) + endmin;
1063                                 }
1064                                 else {
1065                                         /* should never get here */
1066                                 }
1067
1068                                 wc_printf("<dd  class=\"event_framed%s\" "
1069                                         "style=\"position: absolute; "
1070                                         "top:%dpx; left:%dpx; "
1071                                         "height:%dpx; \" >",
1072                                         (Cal->unread)?"_unread":"_read",
1073                                         top, (gap * 40), (bottom-top)
1074                                         );
1075                                 wc_printf("<a href=\"display_edit_event?"
1076                                         "msgnum=%ld?calview=day?year=%d?month=%d?day=%d?hour=%d\" "
1077                                         "class=\"event_title\">"
1078                                         ,
1079                                         Cal->cal_msgnum, year, month, day, t.hour
1080                                 );
1081                                 escputs((char *) icalproperty_get_comment(p));
1082                                 wc_printf("<span class=\"tooltip\"><span class=\"btttop\"></span><span class=\"bttmiddle\">");
1083                                 wc_printf("<i>%s: %s</i><br />", _("From"), Cal->from);
1084                                 wc_printf("<i>%s</i> ",          _("Summary:"));
1085                                 escputs((char *) icalproperty_get_comment(p));
1086                                 wc_printf("<br />");
1087                                 q = icalcomponent_get_first_property(Cal->cal,ICAL_LOCATION_PROPERTY);
1088                                 if (q) {
1089                                         wc_printf("<i>%s</i> ", _("Location:"));
1090                                         escputs((char *)icalproperty_get_comment(q));
1091                                         wc_printf("<br />");
1092                                                                 }
1093                                 if (!icaltime_compare(t, end_t)) { /* one day only */
1094                                         webcit_fmt_date(buf, 256, event_tt, DATEFMT_BRIEF);
1095                                         wc_printf("<i>%s</i> %s<br>", _("Date/time:"), buf);
1096                                 }
1097                                 else {
1098                                         webcit_fmt_date(buf, 256, event_tt, DATEFMT_BRIEF);
1099                                         wc_printf("<i>%s</i> %s<br>", _("Starting date/time:"), buf);
1100                                         webcit_fmt_date(buf, 256, event_tte, DATEFMT_BRIEF);
1101                                         wc_printf("<i>%s</i> %s<br>", _("Ending date/time:"), buf);
1102                                 }
1103                                 q = icalcomponent_get_first_property(Cal->cal,ICAL_DESCRIPTION_PROPERTY);
1104                                 if (q) {
1105                                         wc_printf("<i>%s</i> ", _("Notes:"));
1106                                         escputs((char *)icalproperty_get_comment(q));
1107                                         wc_printf("<br />");
1108                                 }
1109                                 wc_printf("</span><span class=\"bttbottom\"></span></span>");
1110                                 wc_printf("</a></dd>\n");
1111                         }
1112                 }
1113         }
1114         DeleteHashPos(&Pos);
1115 }
1116
1117 /*
1118  * view one day
1119  */
1120 void calendar_day_view(int year, int month, int day) {
1121         int hour;
1122         struct icaltimetype today, yesterday, tomorrow;
1123         long daystart;
1124         long dayend;
1125         struct tm d_tm;
1126         char d_str[160];
1127         int time_format;
1128         time_t today_t;
1129         int timeline = TIMELINE;
1130         int extratimeline = EXTRATIMELINE;
1131         int gap = 0;
1132         int hourlabel;
1133         int extrahourlabel;
1134
1135         time_format = get_time_format_cached ();
1136         get_pref_long("daystart", &daystart, 8);
1137         get_pref_long("dayend", &dayend, 17);
1138
1139         /* when loading daystart/dayend, replace missing, corrupt, or impossible values with defaults */
1140         if ((daystart < 0) || (dayend < 2) || (daystart >= 23) || (dayend > 23) || (dayend <= daystart)) {
1141                 daystart = 9;
1142                 dayend = 17;
1143         }
1144
1145         /* Today's date */
1146         memset(&d_tm, 0, sizeof d_tm);
1147         d_tm.tm_year = year - 1900;
1148         d_tm.tm_mon = month - 1;
1149         d_tm.tm_mday = day;
1150         today_t = mktime(&d_tm);
1151
1152         /* Figure out the dates for "yesterday" and "tomorrow" links */
1153
1154         memset(&today, 0, sizeof(struct icaltimetype));
1155         today.year = year;
1156         today.month = month;
1157         today.day = day;
1158         today.is_date = 1;
1159
1160         memcpy(&yesterday, &today, sizeof(struct icaltimetype));
1161         --yesterday.day;
1162         yesterday = icaltime_normalize(yesterday);
1163
1164         memcpy(&tomorrow, &today, sizeof(struct icaltimetype));
1165         ++tomorrow.day;
1166         tomorrow = icaltime_normalize(tomorrow);
1167
1168         wc_printf("<div class=\"fix_scrollbar_bug\">");
1169
1170         /* Inner table (the real one) */
1171         wc_printf("<table class=\"calendar\" id=\"inner_day\"><tr> \n");
1172
1173         /* Innermost cell (contains hours etc.) */
1174         wc_printf("<td class=\"events_of_the_day\" >");
1175         wc_printf("<dl class=\"events\" >");
1176
1177         /* Now the middle of the day... */
1178
1179         extrahourlabel = extratimeline - 2;
1180         hourlabel = extrahourlabel * 150 / 100;
1181         if (hourlabel > (timeline - 2)) hourlabel = timeline - 2;
1182
1183         for (hour = 0; hour < daystart; ++hour) {       /* could do HEIGHT=xx */
1184                 wc_printf("<dt class=\"extrahour\"      "
1185                         "style=\"               "
1186                         "position: absolute;    "
1187                         "top: %dpx; left: 0px;  "
1188                         "height: %dpx;          "
1189                         "font-size: %dpx;       "
1190                         "\" >                   "
1191                         "<a href=\"display_edit_event?msgnum=0"
1192                         "?calview=day?year=%d?month=%d?day=%d?hour=%d?minute=0\">",
1193                         (hour * extratimeline ),
1194                         extratimeline,
1195                         extrahourlabel,
1196                         year, month, day, hour
1197                         );
1198
1199                 if (time_format == WC_TIMEFORMAT_24) {
1200                         wc_printf("%2d:00</a> ", hour);
1201                 }
1202                 else {
1203                         wc_printf("%d:00%s</a> ",
1204                                 ((hour == 0) ? 12 : (hour <= 12 ? hour : hour-12)),
1205                                 (hour < 12 ? "am" : "pm")
1206                                 );
1207                 }
1208
1209                 wc_printf("</dt>");
1210         }
1211
1212         gap = daystart * extratimeline;
1213
1214         for (hour = daystart; hour <= dayend; ++hour) {       /* could do HEIGHT=xx */
1215                 wc_printf("<dt class=\"hour\"     "
1216                         "style=\"               "
1217                         "position: absolute;    "
1218                         "top: %ldpx; left: 0px; "
1219                         "height: %dpx;          "
1220                         "font-size: %dpx;       "
1221                         "\" >                   "
1222                         "<a href=\"display_edit_event?msgnum=0?calview=day"
1223                         "?year=%d?month=%d?day=%d?hour=%d?minute=0\">",
1224                         gap + ((hour - daystart) * timeline ),
1225                         timeline,
1226                         hourlabel,
1227                         year, month, day, hour
1228                         );
1229
1230                 if (time_format == WC_TIMEFORMAT_24) {
1231                         wc_printf("%2d:00</a> ", hour);
1232                 }
1233                 else {
1234                         wc_printf("%d:00%s</a> ",
1235                                 (hour <= 12 ? hour : hour-12),
1236                                 (hour < 12 ? "am" : "pm")
1237                                                 );
1238                 }
1239
1240                 wc_printf("</dt>");
1241         }
1242
1243         gap = gap + ((dayend - daystart + 1) * timeline);
1244
1245         for (hour = (dayend + 1); hour < 24; ++hour) {       /* could do HEIGHT=xx */
1246                 wc_printf("<dt class=\"extrahour\"     "
1247                         "style=\"               "
1248                         "position: absolute;    "
1249                         "top: %ldpx; left: 0px; "
1250                         "height: %dpx;          "
1251                         "font-size: %dpx;       "
1252                         "\" >                   "
1253                         "<a href=\"display_edit_event?msgnum=0?calview=day"
1254                         "?year=%d?month=%d?day=%d?hour=%d?minute=0\">",
1255                         gap + ((hour - dayend - 1) * extratimeline ),
1256                         extratimeline,
1257                         extrahourlabel,
1258                         year, month, day, hour
1259                 );
1260
1261                 if (time_format == WC_TIMEFORMAT_24) {
1262                         wc_printf("%2d:00</a> ", hour);
1263                 }
1264                 else {
1265                         wc_printf("%d:00%s</a> ",
1266                                 (hour <= 12 ? hour : hour-12),
1267                                 (hour < 12 ? "am" : "pm")
1268                         );
1269                 }
1270
1271                 wc_printf("</dt>");
1272         }
1273
1274         /* Display events with start and end times on this day */
1275         calendar_day_view_display_events(today_t, year, month, day, 0, daystart, dayend);
1276
1277         wc_printf("</dl>");
1278         wc_printf("</td>");                     /* end of innermost table */
1279
1280         /* Display extra events (start/end times not present or not today) in the middle column */
1281         wc_printf("<td class=\"extra_events\">");
1282
1283         wc_printf("<ul>");
1284
1285         /* Display all-day events */
1286         calendar_day_view_display_events(today_t, year, month, day, 1, daystart, dayend);
1287
1288         wc_printf("</ul>");
1289
1290         wc_printf("</td>");     /* end extra on the middle */
1291
1292         wc_printf("<td width='20%%' align=\"center\" valign=top>");     /* begin stuff-on-the-right */
1293
1294         /* Begin todays-date-with-left-and-right-arrows */
1295         wc_printf("<table border=\"0\" width=\"100%%\" "
1296                 "cellspacing=\"0\" cellpadding=\"0\" bgcolor=\"#FFFFFF\">\n");
1297         wc_printf("<tr>");
1298
1299         /* Left arrow */
1300         wc_printf("<td align=\"center\">");
1301         wc_printf("<a href=\"readfwd?calview=day?year=%d?month=%d?day=%d\">",
1302                 yesterday.year, yesterday.month, yesterday.day);
1303         wc_printf("<img alt=\"previous\" align=\"middle\" src=\"static/prevdate_32x.gif\" border=\"0\"></a>");
1304         wc_printf("</td>");
1305
1306         wc_strftime(d_str, sizeof d_str,
1307                 "<td align=\"center\">"
1308                 "<font size='+2'>%A</font><br />"
1309                 "<font size='+2'>%B</font><br />"
1310                 "<font size='+3'>%d</font><br />"
1311                 "<font size='+2'>%Y</font><br />"
1312                 "</td>",
1313                 &d_tm
1314                 );
1315         wc_printf("%s", d_str);
1316
1317         /* Right arrow */
1318         wc_printf("<td align=\"center\">");
1319         wc_printf("<a href=\"readfwd?calview=day?year=%d?month=%d?day=%d\">",
1320                 tomorrow.year, tomorrow.month, tomorrow.day);
1321         wc_printf("<img alt=\"%s\" align=\"middle\" src=\"static/nextdate_32x.gif\""
1322                 " border=\"0\"></a>\n", _("next"));
1323         wc_printf("</td>");
1324
1325         wc_printf("</tr></table>\n");
1326         /* End todays-date-with-left-and-right-arrows */
1327
1328         /* Embed a mini month calendar in this space */
1329         wc_printf("<br />\n");
1330         embeddable_mini_calendar(year, month);
1331
1332         wc_printf("</td></tr>");                        /* end stuff-on-the-right */
1333
1334         wc_printf("</table>"                    /* end of inner table */
1335                 "</div>");
1336 }
1337
1338
1339 /*
1340  * Display today's events.  Returns the number of items displayed.
1341  */
1342 int calendar_summary_view(void) {
1343         long hklen;
1344         const char *HashKey;
1345         void *vCal;
1346         HashPos *Pos;
1347         disp_cal *Cal;
1348         icalproperty *p;
1349         struct icaltimetype t;
1350         time_t event_tt;
1351         struct tm event_tm;
1352         struct tm today_tm;
1353         time_t now;
1354         int all_day_event = 0;
1355         char timestring[SIZ];
1356         wcsession *WCC = WC;
1357         int num_displayed = 0;
1358
1359         if (GetCount(WC->disp_cal_items) == 0) {
1360                 return(0);
1361         }
1362
1363         now = time(NULL);
1364         localtime_r(&now, &today_tm);
1365
1366         Pos = GetNewHashPos(WCC->disp_cal_items, 0);
1367         while (GetNextHashPos(WCC->disp_cal_items, Pos, &hklen, &HashKey, &vCal)) {
1368                 Cal = (disp_cal*)vCal;
1369                 p = icalcomponent_get_first_property(Cal->cal, ICAL_DTSTART_PROPERTY);
1370                 if (p != NULL) {
1371                         t = icalproperty_get_dtstart(p);
1372                         event_tt = icaltime_as_timet(t);
1373                         if (t.is_date) {
1374                                 all_day_event = 1;
1375                         }
1376                         else {
1377                                 all_day_event = 0;
1378                         }
1379                         fmt_time(timestring, SIZ, event_tt);
1380
1381                         if (all_day_event) {
1382                                 gmtime_r(&event_tt, &event_tm);
1383                         }
1384                         else {
1385                                 localtime_r(&event_tt, &event_tm);
1386                         }
1387
1388                         if ( (event_tm.tm_year == today_tm.tm_year)
1389                                 && (event_tm.tm_mon == today_tm.tm_mon)
1390                                 && (event_tm.tm_mday == today_tm.tm_mday)
1391                         ) {
1392
1393                                 p = icalcomponent_get_first_property(Cal->cal, ICAL_SUMMARY_PROPERTY);
1394                                 if (p == NULL) {
1395                                         p = icalproperty_new_summary(_("Untitled Task"));
1396                                         icalcomponent_add_property(Cal->cal, p);
1397                                 }
1398                                 if (p != NULL)
1399                                 {
1400                                         if (WCC->CurRoom.view == VIEW_TASKS) {
1401                                                 wc_printf("<a href=\"display_edit_task"
1402                                                         "?msgnum=%ld"
1403                                                         "?return_to_summary=1"
1404                                                         "?gotofirst=",
1405                                                         Cal->cal_msgnum
1406                                                 );
1407                                                 escputs(ChrPtr(WCC->CurRoom.name));
1408                                                 wc_printf("\">");
1409                                         }
1410                                         else {
1411                                                 wc_printf("<a href=\"display_edit_event"
1412                                                         "?msgnum=%ld"
1413                                                         "?calview=summary"
1414                                                         "?year=%d"
1415                                                         "?month=%d"
1416                                                         "?day=%d"
1417                                                         "?gotofirst=",
1418                                                         Cal->cal_msgnum,
1419                                                         today_tm.tm_year + 1900,
1420                                                         today_tm.tm_mon + 1,
1421                                                         today_tm.tm_mday
1422                                                 );
1423                                                 escputs(ChrPtr(WCC->CurRoom.name));
1424                                                 wc_printf("\">");
1425                                         }
1426                                         escputs((char *) icalproperty_get_comment(p));
1427                                         if (!all_day_event) {
1428                                                 wc_printf(" (%s)", timestring);
1429                                         }
1430                                         wc_printf("</a><br />\n");
1431                                         ++num_displayed;
1432                                 }
1433                         }
1434                 }
1435         }
1436         DeleteHashPos(&Pos);
1437         DeleteHash(&WC->disp_cal_items);
1438         return(num_displayed);
1439 }
1440
1441 /*
1442  * Parse the URL variables in order to determine the scope and display of a calendar view
1443  */
1444 int calendar_GetParamsGetServerCall(SharedMessageStatus *Stat,
1445                                     void **ViewSpecific,
1446                                     long oper,
1447                                     char *cmd,
1448                                     long len)
1449 {
1450         wcsession *WCC = WC;
1451         calview *c;
1452         time_t now;
1453         struct tm tm;
1454         char cv[32];
1455
1456         int span = 3888000;
1457
1458         c = (calview*) malloc(sizeof(calview));
1459         memset(c, 0, sizeof(calview));
1460         *ViewSpecific = (void*)c;
1461
1462         Stat->load_seen = 1;
1463         strcpy(cmd, "MSGS ALL");
1464         Stat->maxmsgs = 32767;
1465
1466         /* In case no date was specified, go with today */
1467         now = time(NULL);
1468         localtime_r(&now, &tm);
1469         c->year = tm.tm_year + 1900;
1470         c->month = tm.tm_mon + 1;
1471         c->day = tm.tm_mday;
1472
1473         /* Now see if a date was specified */
1474         if (havebstr("year")) c->year = ibstr("year");
1475         if (havebstr("month")) c->month = ibstr("month");
1476         if (havebstr("day")) c->day = ibstr("day");
1477
1478         /* How would you like that cooked? */
1479         if (havebstr("calview")) {
1480                 strcpy(cv, bstr("calview"));
1481         }
1482         else {
1483                 strcpy(cv, "month");
1484         }
1485
1486         /* Display the selected view */
1487         if (!strcasecmp(cv, "day")) {
1488                 c->view = calview_day;
1489         }
1490         else if (!strcasecmp(cv, "week")) {
1491                 c->view = calview_week;
1492         }
1493         else if (!strcasecmp(cv, "summary")) {  /* shouldn't ever happen, but just in case */
1494                 c->view = calview_day;
1495         }
1496         else {
1497                 if (WCC->CurRoom.view == VIEW_CALBRIEF) {
1498                         c->view = calview_brief;
1499                 }
1500                 else {
1501                         c->view = calview_month;
1502                 }
1503         }
1504
1505         /* Now try and set the lower and upper bounds so that we don't
1506          * burn too many cpu cycles parsing data way in the past or future
1507          */
1508
1509         tm.tm_year = c->year - 1900;
1510         tm.tm_mon = c->month - 1;
1511         tm.tm_mday = c->day;
1512         now = mktime(&tm);
1513
1514         if (c->view == calview_month)   span = 3888000;
1515         if (c->view == calview_brief)   span = 3888000;
1516         if (c->view == calview_week)    span = 604800;
1517         if (c->view == calview_day)     span = 86400;
1518         if (c->view == calview_summary) span = 86400;
1519
1520         c->lower_bound = now - span;
1521         c->upper_bound = now + span;
1522         return 200;
1523 }
1524
1525
1526
1527 /*
1528  * Render a calendar view from data previously loaded into memory
1529  */
1530 int calendar_RenderView_or_Tail(SharedMessageStatus *Stat,
1531                                 void **ViewSpecific,
1532                                 long oper)
1533 {
1534         wcsession *WCC = WC;
1535         calview *c = (calview*) *ViewSpecific;
1536
1537         if (c->view == calview_day) {
1538                 calendar_day_view(c->year, c->month, c->day);
1539         }
1540         else if (c->view == calview_week) {
1541                 calendar_week_view(c->year, c->month, c->day);
1542         }
1543         else {
1544                 if (WCC->CurRoom.view == VIEW_CALBRIEF) {
1545                         calendar_brief_month_view(c->year, c->month, c->day);
1546                 }
1547                 else {
1548                         calendar_month_view(c->year, c->month, c->day);
1549                 }
1550         }
1551
1552         /* Free the in-memory list of calendar items */
1553         DeleteHash(&WC->disp_cal_items);
1554         return 0;
1555 }