webcit/calendar_view.c

   1  /*
   2  * $Id$
   3  */
   4 /**
   5  * \defgroup CalHtmlHandles Handles the HTML display of calendar items.
   6  * \ingroup Calendaring
   7  */
   8 /*@{*/
   9 #include "webcit.h"
  10 #include "webserver.h"
  11
  12 #ifdef WEBCIT_WITH_CALENDAR_SERVICE
  13
  14 /****************************************************************************/
  15
  16
  17 void embeddable_mini_calendar(int year, int month, char *urlformat)
  18 {
  19         struct tm starting_tm;
  20         struct tm tm;
  21         time_t thetime;
  22         int i, len;
  23         time_t previous_month;
  24         time_t next_month;
  25         time_t colheader_time;
  26         struct tm colheader_tm;
  27         char colheader_label[32];
  28         int weekstart = 0;
  29         char weekstart_buf[16];
  30         char url[256];
  31         char div_id[256];
  32         char escaped_urlformat[256];
  33
  34         snprintf(div_id, sizeof div_id, "mini_calendar_%d", rand() );
  35
  36         /* Determine what day to start.
  37          */
  38         get_preference("weekstart", weekstart_buf, sizeof weekstart_buf);
  39         weekstart = atoi(weekstart_buf);
  40
  41         /*
  42          * Now back up to the 1st of the month...
  43          */
  44         memset(&starting_tm, 0, sizeof(struct tm));
  45
  46         starting_tm.tm_year = year - 1900;
  47         starting_tm.tm_mon = month - 1;
  48         starting_tm.tm_mday = 1;
  49         thetime = mktime(&starting_tm);
  50
  51         memcpy(&tm, &starting_tm, sizeof(struct tm));
  52         while (tm.tm_mday != 1) {
  53                 thetime = thetime - (time_t)86400;      /* go back 24 hours */
  54                 localtime_r(&thetime, &tm);
  55         }
  56
  57         /** Determine previous and next months ... for links */
  58         previous_month = thetime - (time_t)864000L;     /* back 10 days */
  59         next_month = thetime + (time_t)(31L * 86400L);  /* ahead 31 days */
  60
  61         /** Now back up until we're on the user's preferred start day */
  62         localtime_r(&thetime, &tm);
  63         while (tm.tm_wday != weekstart) {
  64                 thetime = thetime - (time_t)86400;      /* go back 24 hours */
  65                 localtime_r(&thetime, &tm);
  66         }
  67
  68         wprintf("<div class=\"mini_calendar\" id=\"%s\">\n", div_id);
  69
  70         /* Previous month link */
  71         localtime_r(&previous_month, &tm);
  72         wprintf("<a href=\"javascript:minical_change_month(%d,%d);\">&laquo;</a>",
  73                 (int)(tm.tm_year)+1900, tm.tm_mon + 1);
  74
  75         wc_strftime(colheader_label, sizeof colheader_label, "%B", &starting_tm);
  76         wprintf("&nbsp;&nbsp;"
  77                 "<span class=\"mini_calendar_month_label\">"
  78                 "%s %d"
  79                 "</span>"
  80                 "&nbsp;&nbsp;", colheader_label, year);
  81
  82         /* Next month link */
  83         localtime_r(&next_month, &tm);
  84         wprintf("<a href=\"javascript:minical_change_month(%d,%d);\">&raquo;</a>",
  85                 (int)(tm.tm_year)+1900, tm.tm_mon + 1);
  86
  87         wprintf("<table border=0 cellpadding=1 cellspacing=1 class=\"mini_calendar_days\">"
  88                 "<tr>");
  89         colheader_time = thetime;
  90         for (i=0; i<7; ++i) {
  91                 colheader_time = thetime + (i * 86400) ;
  92                 localtime_r(&colheader_time, &colheader_tm);
  93                 wc_strftime(colheader_label, sizeof colheader_label, "%A", &colheader_tm);
  94                 wprintf("<th>%c</th>", colheader_label[0]);
  95
  96         }
  97         wprintf("</tr>\n");
  98
  99
 100         /** Now do 35 or 42 days */
 101         for (i = 0; i < 42; ++i) {
 102                 localtime_r(&thetime, &tm);
 103
 104                 if (i < 35) {
 105
 106                         /** Before displaying Sunday, start a new row */
 107                         if ((i % 7) == 0) {
 108                                 wprintf("<tr>");
 109                         }
 110
 111                         if (tm.tm_mon == month-1) {
 112                                 snprintf(url, sizeof url, urlformat,
 113                                         tm.tm_year+1900, tm.tm_mon+1, tm.tm_mday);
 114                                 wprintf("<td><a href=\"%s\">%d</a></td>", url, tm.tm_mday);
 115                         }
 116                         else {
 117                                 wprintf("<td> </td>");
 118                         }
 119
 120                         /** After displaying one week, end the row */
 121                         if ((i % 7) == 6) {
 122                                 wprintf("</tr>\n");
 123                         }
 124
 125                 }
 126
 127                 thetime += (time_t)86400;               /** ahead 24 hours */
 128         }
 129
 130         wprintf("</table>"                      /** end of inner table */
 131                 "</div>\n");
 132
 133         /* javascript for previous and next month */
 134         len = strlen(urlformat);
 135         for (i=0; i<len; ++i) {
 136                 sprintf(&escaped_urlformat[i*2], "%02X", urlformat[i]);
 137         }
 138
 139         wprintf("<script type=\"text/javascript\">                                                      "
 140                 "       function minical_change_month(year, month) {                                    "
 141                 "               p = 'year=' + year + '&month=' + month                                  "
 142                 "                       + '&urlformat=%s&r=' + CtdlRandomString();                      "
 143                 "               new Ajax.Updater('%s', 'mini_calendar',                                 "
 144                 "                       { method: 'get', parameters: p, evalScripts: true } );          "
 145                 "       }                                                                               "
 146                 "</script>\n"
 147                 ,
 148                 escaped_urlformat, div_id
 149         );
 150
 151 }
 152
 153 /* ajax embedder for the above mini calendar */
 154 void ajax_mini_calendar(void) {
 155         char urlformat[256];
 156         int i, len;
 157         char *escaped_urlformat;
 158
 159         escaped_urlformat = bstr("urlformat");
 160         len = strlen(escaped_urlformat) * 2 ;
 161         for (i=0; i<len; ++i) {
 162                 urlformat[i] = xtoi(&escaped_urlformat[i*2], 2);
 163                 urlformat[i+1] = 0;
 164         }
 165
 166         embeddable_mini_calendar( atoi(bstr("year")), atoi(bstr("month")), urlformat );
 167 }
 168
 169
 170 /**
 171  * \brief Display one day of a whole month view of a calendar
 172  * \param thetime the month we want to see
 173  */
 174 void calendar_month_view_display_events(int year, int month, int day)
 175 {
 176         int i;
 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 tm starting_tm;
 184         struct tm ending_tm;
 185         int all_day_event = 0;
 186         int show_event = 0;
 187         char buf[256];
 188         struct wcsession *WCC = WC;     /* This is done to make it run faster; WC is a function */
 189         struct disp_cal *Cal;
 190         time_t tt;
 191
 192         if (WCC->num_cal == 0) {
 193                 wprintf("<br /><br /><br />\n");
 194                 return;
 195         }
 196
 197         /* Create an imaginary event which spans the 24 hours of today.  Any events which
 198          * overlap with this one take place at least partially in this day.  We have to
 199          * convert it from a struct tm in order to make it UTC.
 200          */
 201         memset(&starting_tm, 0, sizeof(struct tm));
 202         starting_tm.tm_year = year - 1900;
 203         starting_tm.tm_mon = month - 1;
 204         starting_tm.tm_mday = day;
 205         starting_tm.tm_hour = 0;
 206         starting_tm.tm_min = 0;
 207         today_start_t = icaltime_from_timet_with_zone(mktime(&starting_tm), 0, icaltimezone_get_utc_timezone());
 208         today_start_t.is_utc = 1;
 209
 210         memset(&ending_tm, 0, sizeof(struct tm));
 211         ending_tm.tm_year = year - 1900;
 212         ending_tm.tm_mon = month - 1;
 213         ending_tm.tm_mday = day;
 214         ending_tm.tm_hour = 23;
 215         ending_tm.tm_min = 59;
 216         today_end_t = icaltime_from_timet_with_zone(mktime(&ending_tm), 0, icaltimezone_get_utc_timezone());
 217         today_end_t.is_utc = 1;
 218
 219         /* Now loop through our list of events to see which ones occur today.
 220          */
 221         for (i=0; i<(WCC->num_cal); ++i) {
 222                 Cal = &WCC->disp_cal[i];
 223                 all_day_event = 0;
 224                 q = icalcomponent_get_first_property(Cal->cal, ICAL_DTSTART_PROPERTY);
 225                 if (q != NULL) {
 226                         t = icalproperty_get_dtstart(q);
 227                 }
 228                 else {
 229                         memset(&t, 0, sizeof t);
 230                 }
 231                 q = icalcomponent_get_first_property(Cal->cal, ICAL_DTEND_PROPERTY);
 232                 if (q != NULL) {
 233                         end_t = icalproperty_get_dtend(q);
 234                 }
 235                 else {
 236                         memset(&end_t, 0, sizeof end_t);
 237                 }
 238                 if (t.is_date) all_day_event = 1;
 239
 240                 if (all_day_event)
 241                 {
 242                         show_event = ((t.year == year) && (t.month == month) && (t.day == day));
 243                 }
 244                 else
 245                 {
 246                         show_event = ical_ctdl_is_overlap(t, end_t, today_start_t, today_end_t);
 247                 }
 248
 249                 /* If we determined that this event occurs today, then display it.
 250                  */
 251                 if (show_event) {
 252                         p = icalcomponent_get_first_property(Cal->cal, ICAL_SUMMARY_PROPERTY);
 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 href=\"display_edit_event?"
 263                                         "msgnum=%ld&calview=%s&year=%s&month=%s&day=%s\""
 264                                         " btt_tooltext=\"",
 265                                         WC->disp_cal[i].cal_msgnum,
 266                                         bstr("calview"),
 267                                         bstr("year"),
 268                                         bstr("month"),
 269                                         bstr("day")
 270                                         );
 271
 272                                 wprintf("<i>%s</i> ", _("Summary:"));
 273                                 escputs((char *)icalproperty_get_comment(p));
 274                                 wprintf("<br />");
 275
 276                                 q = icalcomponent_get_first_property(
 277                                         WC->disp_cal[i].cal,
 278                                         ICAL_LOCATION_PROPERTY);
 279                                 if (q) {
 280                                         wprintf("<i>%s</i> ", _("Location:"));
 281                                         escputs((char *)icalproperty_get_comment(q));
 282                                         wprintf("<br />");
 283                                         }
 284
 285                                 /**
 286                                  * Only show start/end times if we're actually looking at the VEVENT
 287                                  * component.  Otherwise it shows bogus dates for e.g. timezones
 288                                  */
 289                                 if (icalcomponent_isa(Cal->cal) == ICAL_VEVENT_COMPONENT) {
 290
 291                                         q = icalcomponent_get_first_property(Cal->cal, ICAL_DTSTART_PROPERTY);
 292                                         if (q != NULL) {
 293                                                 t = icalproperty_get_dtstart(q);
 294
 295                                                 if (t.is_date) {
 296                                                         struct tm d_tm;
 297                                                         char d_str[32];
 298                                                         memset(&d_tm, 0, sizeof d_tm);
 299                                                         d_tm.tm_year = t.year - 1900;
 300                                                         d_tm.tm_mon = t.month - 1;
 301                                                         d_tm.tm_mday = t.day;
 302                                                         wc_strftime(d_str, sizeof d_str, "%x", &d_tm);
 303                                                         wprintf("<i>%s</i> %s<br>",
 304                                                                 _("Date:"), d_str);
 305                                                 }
 306                                                 else {
 307                                                         tt = icaltime_as_timet(t);
 308                                                         fmt_date(buf, tt, 1);
 309                                                         wprintf("<i>%s</i> %s<br>",
 310                                                                 _("Starting date/time:"), buf);
 311
 312                                                         /* Embed the 'show end date/time' loop inside here so it
 313                                                          * only executes if this is NOT an all day event.
 314                                                          */
 315                                                         q = icalcomponent_get_first_property(Cal->cal, ICAL_DTEND_PROPERTY);
 316                                                         if (q != NULL) {
 317                                                                 t = icalproperty_get_dtend(q);
 318                                                                 tt = icaltime_as_timet(t);
 319                                                                 fmt_date(buf, tt, 1);
 320                                                                 wprintf("<i>%s</i> %s<br>", _("Ending date/time:"), buf);
 321                                                         }
 322
 323                                                 }
 324                                         }
 325
 326                                 }
 327
 328                                 q = icalcomponent_get_first_property(Cal->cal, ICAL_DESCRIPTION_PROPERTY);
 329                                 if (q) {
 330                                         wprintf("<i>%s</i> ", _("Notes:"));
 331                                         escputs((char *)icalproperty_get_comment(q));
 332                                         wprintf("<br />");
 333                                 }
 334
 335                                 wprintf("\">");
 336                                 escputs((char *)
 337                                         icalproperty_get_comment(p));
 338                                 wprintf("</a></font><br />\n");
 339
 340                                 if (all_day_event) {
 341                                         wprintf("</td></tr></table>");
 342                                 }
 343
 344                         }
 345
 346                 }
 347
 348
 349         }
 350 }
 351
 352
 353 /**
 354  * \brief Display one day of a whole month view of a calendar
 355  * \param thetime the month we want to see
 356  */
 357 void calendar_month_view_brief_events(time_t thetime, const char *daycolor) {
 358         int i;
 359         time_t event_tt;
 360         time_t event_tts;
 361         time_t event_tte;
 362         struct tm event_tms;
 363         struct tm event_tme;
 364         struct tm today_tm;
 365         icalproperty *p;
 366         icalproperty *e;
 367         struct icaltimetype t;
 368         int month, day, year;
 369         int all_day_event = 0;
 370         char *timeformat;
 371         int time_format;
 372
 373         time_format = get_time_format_cached ();
 374
 375         if (time_format == WC_TIMEFORMAT_24) timeformat="%k:%M";
 376         else timeformat="%I:%M %p";
 377
 378         localtime_r(&thetime, &today_tm);
 379         month = today_tm.tm_mon + 1;
 380         day = today_tm.tm_mday;
 381         year = today_tm.tm_year + 1900;
 382
 383         for (i=0; i<(WC->num_cal); ++i) {
 384                 p = icalcomponent_get_first_property(WC->disp_cal[i].cal,
 385                                                 ICAL_DTSTART_PROPERTY);
 386                 if (p != NULL) {
 387                         t = icalproperty_get_dtstart(p);
 388                         event_tt = icaltime_as_timet(t);
 389                         event_tts=event_tt;
 390                         if (t.is_date) all_day_event = 1;
 391                         else all_day_event = 0;
 392
 393                         if (all_day_event) {
 394                                 gmtime_r(&event_tts, &event_tms);
 395                         }
 396                         else {
 397                                 localtime_r(&event_tts, &event_tms);
 398                         }
 399                         /** \todo epoch &! daymask */
 400                         if ((event_tms.tm_year == today_tm.tm_year)
 401                            && (event_tms.tm_mon == today_tm.tm_mon)
 402                            && (event_tms.tm_mday == today_tm.tm_mday)) {
 403
 404
 405                                 char sbuf[255];
 406                                 char ebuf[255];
 407
 408                                 p = icalcomponent_get_first_property(
 409                                                         WC->disp_cal[i].cal,
 410                                                         ICAL_SUMMARY_PROPERTY);
 411                                 e = icalcomponent_get_first_property(
 412                                                         WC->disp_cal[i].cal,
 413                                                         ICAL_DTEND_PROPERTY);
 414                                 if ((p != NULL) && (e != NULL)) {
 415                                         time_t difftime;
 416                                         int hours, minutes;
 417                                         t = icalproperty_get_dtend(e);
 418                                         event_tte = icaltime_as_timet(t);
 419                                         localtime_r(&event_tte, &event_tme);
 420                                         difftime=(event_tte-event_tts)/60;
 421                                         hours=(int)(difftime / 60);
 422                                         minutes=difftime % 60;
 423                                         wprintf("<tr><td bgcolor='%s'>%i:%2i</td><td bgcolor='%s'>"
 424                                                         "<font size=-1>"
 425                                                         "<a href=\"display_edit_event?msgnum=%ld&calview=%s&year=%s&month=%s&day=%s\">",
 426                                                         daycolor,
 427                                                         hours, minutes,
 428                                                         daycolor,
 429                                                         WC->disp_cal[i].cal_msgnum,
 430                                                         bstr("calview"),
 431                                                         bstr("year"),
 432                                                         bstr("month"),
 433                                                         bstr("day")
 434                                                         );
 435
 436                                         escputs((char *)
 437                                                         icalproperty_get_comment(p));
 438                                         /** \todo: allso ammitime format */
 439                                         wc_strftime(&sbuf[0], sizeof(sbuf), timeformat, &event_tms);
 440                                         wc_strftime(&ebuf[0], sizeof(sbuf), timeformat, &event_tme);
 441
 442                                         wprintf("</a></font></td>"
 443                                                         "<td bgcolor='%s'>%s</td><td bgcolor='%s'>%s</td></tr>",
 444                                                         daycolor,
 445                                                         sbuf,
 446                                                         daycolor,
 447                                                         ebuf);
 448
 449                                 }
 450
 451                         }
 452
 453
 454                 }
 455         }
 456 }
 457
 458
 459 /**
 460  * \brief view one month. pretty view
 461  * \param year the year
 462  * \param month the month
 463  * \param day the actual day we want to see
 464  */
 465 void calendar_month_view(int year, int month, int day) {
 466         struct tm starting_tm;
 467         struct tm tm;
 468         time_t thetime;
 469         int i;
 470         time_t previous_month;
 471         time_t next_month;
 472         time_t colheader_time;
 473         struct tm colheader_tm;
 474         char colheader_label[32];
 475         int chg_month = 0;
 476         int weekstart = 0;
 477         char weekstart_buf[16];
 478
 479         /* Determine what day to start.
 480          */
 481         get_preference("weekstart", weekstart_buf, sizeof weekstart_buf);
 482         weekstart = atoi(weekstart_buf);
 483
 484         /*
 485          * Now back up to the 1st of the month...
 486          */
 487         memset(&starting_tm, 0, sizeof(struct tm));
 488
 489         starting_tm.tm_year = year - 1900;
 490         starting_tm.tm_mon = month - 1;
 491         starting_tm.tm_mday = day;
 492         thetime = mktime(&starting_tm);
 493
 494         memcpy(&tm, &starting_tm, sizeof(struct tm));
 495         while (tm.tm_mday != 1) {
 496                 thetime = thetime - (time_t)86400;      /* go back 24 hours */
 497                 localtime_r(&thetime, &tm);
 498         }
 499
 500         /** Determine previous and next months ... for links */
 501         previous_month = thetime - (time_t)864000L;     /* back 10 days */
 502         next_month = thetime + (time_t)(31L * 86400L);  /* ahead 31 days */
 503
 504         /** Now back up until we're on the user's preferred start day */
 505         localtime_r(&thetime, &tm);
 506         while (tm.tm_wday != weekstart) {
 507                 thetime = thetime - (time_t)86400;      /* go back 24 hours */
 508                 localtime_r(&thetime, &tm);
 509         }
 510
 511         /** Outer table (to get the background color) */
 512         wprintf("<div class=\"fix_scrollbar_bug\">"
 513                 "<table class=\"calendar\"> \n <tr><td>");
 514
 515         wprintf("<table width=100%% border=0 cellpadding=0 cellspacing=0><tr>\n");
 516
 517         wprintf("<td align=center>");
 518
 519         localtime_r(&previous_month, &tm);
 520         wprintf("<a href=\"readfwd?calview=month&year=%d&month=%d&day=1\">",
 521                 (int)(tm.tm_year)+1900, tm.tm_mon + 1);
 522         wprintf("<img align=middle src=\"static/prevdate_32x.gif\" border=0></A>\n");
 523
 524         wc_strftime(colheader_label, sizeof colheader_label, "%B", &starting_tm);
 525         wprintf("&nbsp;&nbsp;"
 526                 "<font size=+1 color=\"#FFFFFF\">"
 527                 "%s %d"
 528                 "</font>"
 529                 "&nbsp;&nbsp;", colheader_label, year);
 530
 531         localtime_r(&next_month, &tm);
 532         wprintf("<a href=\"readfwd?calview=month&year=%d&month=%d&day=1\">",
 533                 (int)(tm.tm_year)+1900, tm.tm_mon + 1);
 534         wprintf("<img align=middle src=\"static/nextdate_32x.gif\" border=0></A>\n");
 535
 536         wprintf("</td></tr></table>\n");
 537
 538         /** Inner table (the real one) */
 539         wprintf("<table width=100%% border=0 cellpadding=1 cellspacing=1 "
 540                 "bgcolor=#204B78 id=\"inner_month\"><tr>");
 541         colheader_time = thetime;
 542         for (i=0; i<7; ++i) {
 543                 colheader_time = thetime + (i * 86400) ;
 544                 localtime_r(&colheader_time, &colheader_tm);
 545                 wc_strftime(colheader_label, sizeof colheader_label, "%A", &colheader_tm);
 546                 wprintf("<td align=center width=14%%>"
 547                         "<font color=\"#FFFFFF\">%s</font></th>", colheader_label);
 548
 549         }
 550         wprintf("</tr>\n");
 551
 552
 553         /** Now do 35 or 42 days */
 554         for (i = 0; i < 42; ++i) {
 555                 localtime_r(&thetime, &tm);
 556
 557                 if ((i < 35) || (chg_month == 0)) {
 558
 559                         if ((i > 27) && ((tm.tm_mday == 1) || (tm.tm_mday == 31))) {
 560                                 chg_month = 1;
 561                         }
 562                         if (i > 35) {
 563                                 chg_month = 0;
 564                         }
 565
 566                         /** Before displaying Sunday, start a new row */
 567                         if ((i % 7) == 0) {
 568                                 wprintf("<tr>");
 569                         }
 570
 571                         wprintf("<td class=\"cal%s\"><div class=\"day\">",
 572                                 ((tm.tm_mon != month-1) ? "out" :
 573                                 ((tm.tm_wday==0 || tm.tm_wday==6) ? "weekend" :
 574                                 "day"))
 575                         );
 576                         if ((i==0) || (tm.tm_mday == 1)) {
 577                                 wc_strftime(colheader_label, sizeof colheader_label, "%B", &tm);
 578                                 wprintf("%s ", colheader_label);
 579                         }
 580                         wprintf("<a href=\"readfwd?calview=day&year=%d&month=%d&day=%d\">"
 581                                 "%d</a></div>",
 582                                 tm.tm_year + 1900,
 583                                 tm.tm_mon + 1,
 584                                 tm.tm_mday,
 585                                 tm.tm_mday);
 586
 587                         /** put the data here, stupid */
 588                         calendar_month_view_display_events(
 589                                 tm.tm_year + 1900,
 590                                 tm.tm_mon + 1,
 591                                 tm.tm_mday
 592                         );
 593
 594                         wprintf("</td>");
 595
 596                         /** After displaying Saturday, end the row */
 597                         if ((i % 7) == 6) {
 598                                 wprintf("</tr>\n");
 599                         }
 600
 601                 }
 602
 603                 thetime += (time_t)86400;               /** ahead 24 hours */
 604         }
 605
 606         wprintf("</table>"                      /** end of inner table */
 607                 "</td></tr></table>"            /** end of outer table */
 608                 "</div>\n");
 609
 610         /**
 611          * Initialize the bubble tooltips.
 612          *
 613          * Yes, this is as stupid as it looks.  Instead of just making the call
 614          * to btt_enableTooltips() straight away, we have to create a timer event
 615          * and let it initialize as an event after 1 millisecond.  This is to
 616          * work around a bug in Internet Explorer that causes it to crash if we
 617          * manipulate the innerHTML of various DOM nodes while the page is still
 618          * being rendered.  See http://www.shaftek.org/blog/archives/000212.html
 619          * for more information.
 620          */
 621         wprintf("<script type=\"text/javascript\">"
 622                 " setTimeout(\"btt_enableTooltips('inner_month')\", 1); "
 623                 "</script>\n"
 624         );
 625 }
 626
 627 /**
 628  * \brief view one month. brief view
 629  * \param year the year
 630  * \param month the month
 631  * \param day the actual day we want to see
 632  */
 633 void calendar_brief_month_view(int year, int month, int day) {
 634         struct tm starting_tm;
 635         struct tm tm;
 636         time_t thetime;
 637         int i;
 638         time_t previous_month;
 639         time_t next_month;
 640         char month_label[32];
 641
 642         /** Determine what day to start.
 643          * First, back up to the 1st of the month...
 644          */
 645         memset(&starting_tm, 0, sizeof(struct tm));
 646         starting_tm.tm_year = year - 1900;
 647         starting_tm.tm_mon = month - 1;
 648         starting_tm.tm_mday = day;
 649         thetime = mktime(&starting_tm);
 650
 651         memcpy(&tm, &starting_tm, sizeof(struct tm));
 652         while (tm.tm_mday != 1) {
 653                 thetime = thetime - (time_t)86400;      /* go back 24 hours */
 654                 localtime_r(&thetime, &tm);
 655         }
 656
 657         /** Determine previous and next months ... for links */
 658         previous_month = thetime - (time_t)864000L;     /* back 10 days */
 659         next_month = thetime + (time_t)(31L * 86400L);  /* ahead 31 days */
 660
 661         /** Now back up until we're on a Sunday */
 662         localtime_r(&thetime, &tm);
 663         while (tm.tm_wday != 0) {
 664                 thetime = thetime - (time_t)86400;      /* go back 24 hours */
 665                 localtime_r(&thetime, &tm);
 666         }
 667
 668         /** Outer table (to get the background color) */
 669         wprintf("<div class=\"fix_scrollbar_bug\">"
 670                 "<table width=100%% border=0 cellpadding=0 cellspacing=0 "
 671                 "bgcolor=#204B78><TR><TD>\n");
 672
 673         wprintf("<table width=100%% border=0 cellpadding=0 cellspacing=0><tr>\n");
 674
 675         wprintf("<td align=center>");
 676
 677         localtime_r(&previous_month, &tm);
 678         wprintf("<a href=\"readfwd?calview=month&year=%d&month=%d&day=1\">",
 679                 (int)(tm.tm_year)+1900, tm.tm_mon + 1);
 680         wprintf("<img align=middle src=\"static/prevdate_32x.gif\" border=0></A>\n");
 681
 682         wc_strftime(month_label, sizeof month_label, "%B", &tm);
 683         wprintf("&nbsp;&nbsp;"
 684                 "<font size=+1 color=\"#FFFFFF\">"
 685                 "%s %d"
 686                 "</font>"
 687                 "&nbsp;&nbsp;", month_label, year);
 688
 689         localtime_r(&next_month, &tm);
 690         wprintf("<a href=\"readfwd?calview=month&year=%d&month=%d&day=1\">",
 691                 (int)(tm.tm_year)+1900, tm.tm_mon + 1);
 692         wprintf("<img align=middle src=\"static/nextdate_32x.gif\" border=0></A>\n");
 693
 694         wprintf("</td></tr></table>\n");
 695
 696         /** Inner table (the real one) */
 697         wprintf("<table width=100%% border=0 cellpadding=1 cellspacing=1 "
 698                 "bgcolor=#EEEECC><TR>");
 699         wprintf("</tr>\n");
 700         wprintf("<tr><td colspan=\"100%\">\n");
 701
 702         /** Now do 35 days */
 703         for (i = 0; i < 35; ++i) {
 704                 char weeknumber[255];
 705                 char weekday_name[32];
 706                 char *daycolor;
 707                 localtime_r(&thetime, &tm);
 708
 709
 710                 /** Before displaying Sunday, start a new CELL */
 711                 if ((i % 7) == 0) {
 712                         wc_strftime(&weeknumber[0], sizeof(weeknumber), "%U", &tm);
 713                         wprintf("<table border='0' bgcolor=\"#EEEECC\" width='100%'> <tr><th colspan='4'>%s %s</th></tr>"
 714                                         "   <tr><td>%s</td><td width=70%%>%s</td><td>%s</td><td>%s</td></tr>\n",
 715                                         _("Week"),
 716                                         weeknumber,
 717                                         _("Hours"),
 718                                         _("Subject"),
 719                                         _("Start"),
 720                                         _("End")
 721                                         );
 722                 }
 723
 724                 daycolor=((tm.tm_mon != month-1) ? "DDDDDD" :
 725                                   ((tm.tm_wday==0 || tm.tm_wday==6) ? "EEEECC" :
 726                                    "FFFFFF"));
 727
 728                 /** Day Header */
 729                 wc_strftime(weekday_name, sizeof weekday_name, "%A", &tm);
 730                 wprintf("<tr><td bgcolor='%s' colspan='1' align='left'> %s,%i."
 731                                 "</td><td bgcolor='%s' colspan='3'><hr></td></tr>\n",
 732                                 daycolor,
 733                                 weekday_name,tm.tm_mday,
 734                                 daycolor);
 735
 736                 /** put the data of one day  here, stupid */
 737                 calendar_month_view_brief_events(thetime, daycolor);
 738
 739
 740                 /** After displaying Saturday, end the row */
 741                 if ((i % 7) == 6) {
 742                         wprintf("</td></tr></table>\n");
 743                 }
 744
 745                 thetime += (time_t)86400;               /** ahead 24 hours */
 746         }
 747
 748         wprintf("</table>"                      /** end of inner table */
 749                 "</td></tr></table>"            /** end of outer table */
 750                 "</div>\n");
 751 }
 752
 753 /**
 754  * \brief view one week
 755  * this should view just one week, but it's not here yet.
 756  * \todo ny implemented
 757  * \param year the year
 758  * \param month the month
 759  * \param day the day which we want to see the week around
 760  */
 761 void calendar_week_view(int year, int month, int day) {
 762         wprintf("<center><i>week view FIXME</i></center><br />\n");
 763 }
 764
 765
 766 /**
 767  * \brief display one day
 768  * Display events for a particular hour of a particular day.
 769  * (Specify hour < 0 to show "all day" events)
 770  * \param year the year
 771  * \param month the month
 772  * \param day the day
 773  * \param hour the hour we want to start displaying
 774  * \param dstart daystart
 775  * \param dend dayend
 776  */
 777 void calendar_day_view_display_events(time_t thetime, int year, int month,
 778                                         int day, int hour,
 779                                         int dstart, int dend) {
 780         int i;
 781         icalproperty *p = NULL;
 782         icalproperty *q = NULL;
 783         time_t event_start;
 784         time_t event_end;
 785         time_t event_tt;
 786         time_t event_tte;
 787         struct tm event_te;
 788         struct tm event_tm;
 789         int show_event = 0;
 790         int all_day_event = 0;
 791         int ongoing_event = 0;
 792         struct wcsession *WCC = WC;     /* This is done to make it run faster; WC is a function */
 793         struct disp_cal *Cal;
 794         struct icaltimetype t;
 795         struct icaltimetype end_t;
 796         struct icaltimetype today_start_t;
 797         struct icaltimetype today_end_t;
 798         struct tm starting_tm;
 799         struct tm ending_tm;
 800         int top = 0;
 801         int height = 0;
 802         int gap = 0;
 803         int startmin = 0;
 804         int diffmin = 0;
 805         int endmin = 0;
 806
 807         if (WCC->num_cal == 0) {
 808                 // \todo FIXME wprintf("<br /><br /><br />\n");
 809                 return;
 810         }
 811
 812         event_start = thetime + 60 * 60 * hour;
 813         event_end = thetime + 60 * 60 * (hour + 1);
 814
 815
 816         /* Create an imaginary event which spans the current hour.  Any events which
 817          * overlap with this one take place at least partially in this day.
 818          */
 819         memset(&starting_tm, 0, sizeof(struct tm));
 820         starting_tm.tm_year = year - 1900;
 821         starting_tm.tm_mon = month - 1;
 822         starting_tm.tm_mday = day;
 823         starting_tm.tm_hour = hour;
 824         starting_tm.tm_min = 0;
 825         today_start_t = icaltime_from_timet_with_zone(mktime(&starting_tm), 0, icaltimezone_get_utc_timezone());
 826         today_start_t.is_utc = 1;
 827
 828         memset(&ending_tm, 0, sizeof(struct tm));
 829         ending_tm.tm_year = year - 1900;
 830         ending_tm.tm_mon = month - 1;
 831         ending_tm.tm_mday = day;
 832         ending_tm.tm_hour = hour;
 833         ending_tm.tm_min = 59;
 834         today_end_t = icaltime_from_timet_with_zone(mktime(&ending_tm), 0, icaltimezone_get_utc_timezone());
 835         today_end_t.is_utc = 1;
 836
 837         /* Now loop through our list of events to see which ones occur today.
 838          */
 839         for (i=0; i<(WCC->num_cal); ++i) {
 840                 Cal = &WCC->disp_cal[i];
 841
 842                 all_day_event = 0;
 843                 ongoing_event=0;
 844
 845                 q = icalcomponent_get_first_property(Cal->cal, ICAL_DTSTART_PROPERTY);
 846                 if (q != NULL) {
 847                         t = icalproperty_get_dtstart(q);
 848                         event_tt = icaltime_as_timet(t);
 849                         localtime_r(&event_tt, &event_te);
 850                 }
 851                 else {
 852                         memset(&t, 0, sizeof t);
 853                 }
 854                 q = icalcomponent_get_first_property(Cal->cal, ICAL_DTEND_PROPERTY);
 855                 if (q != NULL) {
 856                         end_t = icalproperty_get_dtend(q);
 857                         event_tte = icaltime_as_timet(end_t);
 858                         localtime_r(&event_tte, &event_tm);
 859                 }
 860                 else {
 861                         memset(&end_t, 0, sizeof end_t);
 862                 }
 863                 if (t.is_date) all_day_event = 1;
 864
 865                 if (all_day_event)
 866                 {
 867                         show_event = ((t.year == year) && (t.month == month) && (t.day == day) && (hour == -1));
 868                 }
 869                 else
 870                 {
 871                         show_event = ical_ctdl_is_overlap(t, end_t, today_start_t, today_end_t);
 872                 }
 873
 874
 875                 /* If we determined that this event occurs today, then display it.
 876                  */
 877                 p = icalcomponent_get_first_property(Cal->cal,ICAL_SUMMARY_PROPERTY);
 878                 if ((show_event) && (p != NULL)) {
 879
 880                         if ((event_te.tm_mday != today_start_t.day) && (event_tm.tm_mday != today_start_t.day)) ongoing_event = 1;
 881
 882                         if (all_day_event)
 883                         {
 884                                 wprintf("<li class=\"event\"> "
 885                                 "<a href=\"display_edit_event?"
 886                                 "msgnum=%ld&calview=day&year=%d&month=%d&day=%d&hour=%d\" "
 887                                 " class=\"event_title\" >",
 888                                         Cal->cal_msgnum, year, month, day, hour);
 889                                 escputs((char *) icalproperty_get_comment(p));
 890                                 wprintf("</a> <span>(");
 891                                 wprintf(_("All day event"));
 892                                 wprintf(")</span></li>\n");
 893                         }
 894                         else if (ongoing_event && (hour == -1))
 895                         {
 896                                 wprintf("<li class=\"event\"> "
 897                                 "<a href=\"display_edit_event?"
 898                                 "msgnum=%ld&calview=day&year=%d&month=%d&day=%d&hour=%d\" "
 899                                 " class=\"event_title\" >",
 900                                         Cal->cal_msgnum, year, month, day, hour);
 901                                 escputs((char *) icalproperty_get_comment(p));
 902                                 wprintf("</a> <span>(");
 903                                 wprintf(_("Ongoing event"));
 904                                 wprintf(")</span></li>\n");
 905                         }
 906                         else
 907                         {
 908                                 gap++;
 909                                 if ((hour == event_te.tm_hour) && ! ongoing_event ) {
 910
 911                                         if (event_te.tm_mday != today_start_t.day)      event_te.tm_hour = 0;
 912                                         if (event_tm.tm_mday != today_start_t.day) event_tm.tm_hour = 24;
 913
 914                                         if ((event_te.tm_hour < dstart) && (event_tm.tm_hour <= dstart)) {
 915                                                 startmin = diffmin = event_te.tm_min / 6;
 916                                                 endmin = ((event_tm.tm_hour == hour) ? (event_tm.tm_min / 2) : (event_tm.tm_min / 6)) ;
 917                                                 top = (event_te.tm_hour * 11) + startmin -1;
 918                                                 height= ((event_tm.tm_hour - event_te.tm_hour) * 11) + endmin - diffmin ;
 919                                         }
 920                                         if ((event_te.tm_hour < dstart) && (event_tm.tm_hour >= dstart)) {
 921                                                 startmin = diffmin = event_te.tm_min / 6;
 922                                                 endmin = event_tm.tm_min / 2;
 923                                                 top = (event_te.tm_hour * 11) + startmin - 1;
 924                                                 height = ((dstart - event_te.tm_hour) * 11) + ((event_tm.tm_hour - dstart) * 31) + endmin - (diffmin * 3);
 925                                         }
 926                                         if ((event_te.tm_hour <= dstart) && (event_tm.tm_hour > dend)) {
 927                                                 startmin = diffmin = ((event_te.tm_hour == hour) ? (event_te.tm_min / 2) : (event_te.tm_min / 6)) ;
 928                                                 endmin = event_tm.tm_min / 6;
 929                                                 top = (event_te.tm_hour * 11)  + startmin - 1;
 930                                                 height = ((dstart - event_te.tm_hour) * 11) + ((dend - dstart + 1) * 31) + ((event_tm.tm_hour - dend - 1) * 10) + endmin - diffmin;
 931                                         }
 932                                         if ((event_te.tm_hour >= dstart) && (event_tm.tm_hour <= dend)) {
 933                                                 startmin = diffmin = (event_te.tm_min / 2);
 934                                                 endmin = event_tm.tm_min / 2;
 935                                                 top = (dstart * 11) + ((event_te.tm_hour - dstart) * 31) + startmin - 1;
 936                                                 height = ((event_tm.tm_hour - event_te.tm_hour) * 31) + endmin - diffmin;
 937                                         }
 938                                         if ((event_te.tm_hour >= dstart) && (event_te.tm_hour <= dend) && (event_tm.tm_hour > dend)) {
 939                                                 startmin = diffmin = (event_te.tm_min / 2);
 940                                                 endmin = event_tm.tm_min / 6;
 941                                                 top = (dstart * 11) + ((event_te.tm_hour - dstart) * 31)  + diffmin - 1;
 942                                                 height = (((dend - event_te.tm_hour + 1) * 31) + ((event_tm.tm_hour - dend - 1) * 11)) + endmin - diffmin;
 943                                         }
 944                                         if ((event_te.tm_hour > dend) && (event_tm.tm_hour > dend)) {
 945                                                 startmin = diffmin = event_te.tm_min / 6;
 946                                                 endmin = event_tm.tm_min / 6;
 947                                                 top = (dstart * 11) + ((dend - dstart + 1) * 31) + ((event_tm.tm_hour - event_te.tm_hour) * 11) + startmin - 1;
 948                                                 height = ((event_tm.tm_hour - event_te.tm_hour) * 11) + endmin - diffmin;
 949                                         }
 950                                 wprintf("<dd  class=\"event\" "
 951                                         "style=\"position: absolute; "
 952                                         "top:%dpx; left:%dpx; "
 953                                         "height:%dpx; \" >",
 954                                         top, (gap * 40), height
 955                                         );
 956                                 wprintf("<a href=\"display_edit_event?"
 957                                         "msgnum=%ld&calview=day&year=%d&month=%d&day=%d&hour=%d&case=%d\" "
 958                                         "class=\"event_title\" >",
 959                                         Cal->cal_msgnum, year, month, day, t.hour, hour);
 960                                 escputs((char *) icalproperty_get_comment(p));
 961                                 wprintf("</a></dd>\n");
 962                                 }
 963
 964                         }
 965                 }
 966         }
 967 }
 968
 969 /**
 970  * \brief view one day
 971  * \param year the year
 972  * \param month the month
 973  * \param day the day we want to display
 974  */
 975 void calendar_day_view(int year, int month, int day) {
 976         int hour;
 977         struct icaltimetype today, yesterday, tomorrow;
 978         int daystart = 8;
 979         int dayend = 17;
 980         char daystart_str[16], dayend_str[16];
 981         struct tm d_tm;
 982         char d_str[128];
 983         int time_format;
 984         time_t today_t;
 985
 986         time_format = get_time_format_cached ();
 987         get_preference("daystart", daystart_str, sizeof daystart_str);
 988         if (!IsEmptyStr(daystart_str)) daystart = atoi(daystart_str);
 989         get_preference("dayend", dayend_str, sizeof dayend_str);
 990         if (!IsEmptyStr(dayend_str)) dayend = atoi(dayend_str);
 991
 992         /** Today's date */
 993         memset(&d_tm, 0, sizeof d_tm);
 994         d_tm.tm_year = year - 1900;
 995         d_tm.tm_mon = month - 1;
 996         d_tm.tm_mday = day;
 997         today_t = mktime(&d_tm);
 998
 999         /** Figure out the dates for "yesterday" and "tomorrow" links */
1000
1001         memset(&today, 0, sizeof(struct icaltimetype));
1002         today.year = year;
1003         today.month = month;
1004         today.day = day;
1005         today.is_date = 1;
1006
1007         memcpy(&yesterday, &today, sizeof(struct icaltimetype));
1008         --yesterday.day;
1009         yesterday = icaltime_normalize(yesterday);
1010
1011         memcpy(&tomorrow, &today, sizeof(struct icaltimetype));
1012         ++tomorrow.day;
1013         tomorrow = icaltime_normalize(tomorrow);
1014
1015         wprintf("<div class=\"fix_scrollbar_bug\">");
1016
1017         /** Inner table (the real one) */
1018         wprintf("<table class=\"calendar\" id=\"inner_day\"><tr> \n");
1019
1020         /** Innermost cell (contains hours etc.) */
1021         wprintf("<td class=\"events_of_the_day\" >");
1022         wprintf("<dl class=\"events\" >");
1023         /** Now the middle of the day... */
1024         for (hour = 0; hour < 24; ++hour) {     /* could do HEIGHT=xx */
1025                 wprintf("<dt class=\"hour%s\"><a href=\"display_edit_event?msgnum=0"
1026                         "&year=%d&month=%d&day=%d&hour=%d&minute=0\">",
1027                         (hour < daystart ? "before" : (hour > dayend ? "after" : "")),
1028                         year, month, day, hour
1029                 );
1030
1031                 if (time_format == WC_TIMEFORMAT_24) {
1032                         wprintf("%2d:00</a> ", hour);
1033                 }
1034                 else {
1035                         wprintf("%d:00%s</a> ",
1036                                 (hour <= 12 ? hour : hour-12),
1037                                 (hour < 12 ? "am" : "pm")
1038                         );
1039                 }
1040
1041                 wprintf("</dt>");
1042
1043
1044                 /* put the data here, stupid */
1045                 calendar_day_view_display_events(today_t, year, month, day, hour, daystart, dayend);
1046
1047         }
1048
1049         wprintf("</dl>");
1050         wprintf("</td>");                       /* end of innermost table */
1051
1052         /** Extra events on the middle */
1053         wprintf("<td class=\"extra_events\">");
1054
1055         wprintf("<ul>");
1056
1057         /** Display all-day events) */
1058                 calendar_day_view_display_events(today_t, year, month, day, -1, daystart, dayend);
1059
1060         wprintf("</ul>");
1061
1062         wprintf("</td>");       /** end extra on the middle */
1063
1064         wprintf("<td width=20%% align=center valign=top>");     /** begin stuff-on-the-right */
1065
1066         /** Begin todays-date-with-left-and-right-arrows */
1067         wprintf("<table border=0 width=100%% "
1068                 "cellspacing=0 cellpadding=0 bgcolor=\"#FFFFFF\">\n");
1069         wprintf("<tr>");
1070
1071         /** Left arrow */
1072         wprintf("<td align=center>");
1073         wprintf("<a href=\"readfwd?calview=day&year=%d&month=%d&day=%d\">",
1074                 yesterday.year, yesterday.month, yesterday.day);
1075         wprintf("<img align=middle src=\"static/prevdate_32x.gif\" border=0></A>");
1076         wprintf("</td>");
1077
1078         wc_strftime(d_str, sizeof d_str,
1079                 "<td align=center>"
1080                 "<font size=+2>%B</font><br />"
1081                 "<font size=+3>%d</font><br />"
1082                 "<font size=+2>%Y</font><br />"
1083                 "</td>",
1084                 &d_tm
1085         );
1086         wprintf("%s", d_str);
1087
1088         /** Right arrow */
1089         wprintf("<td align=center>");
1090         wprintf("<a href=\"readfwd?calview=day&year=%d&month=%d&day=%d\">",
1091                 tomorrow.year, tomorrow.month, tomorrow.day);
1092         wprintf("<img align=middle src=\"static/nextdate_32x.gif\""
1093                 " border=0></a>\n");
1094         wprintf("</td>");
1095
1096         wprintf("</tr></table>\n");
1097         /** End todays-date-with-left-and-right-arrows */
1098
1099         /** Embed a mini month calendar in this space */
1100         wprintf("<br />\n");
1101         embeddable_mini_calendar(year, month, "readfwd?calview=day&year=%d&month=%d&day=%d");
1102
1103         wprintf("</font></center>\n");
1104
1105         wprintf("</td></tr>");                  /** end stuff-on-the-right */
1106
1107         wprintf("</table>"                      /** end of inner table */
1108                 "</div>");
1109
1110         wprintf("<script type=\"text/javascript\">"
1111                 " setTimeout(\"btt_enableTooltips('inner_day')\", 1); "
1112                 "</script>\n"
1113         );
1114 }
1115
1116
1117 /**
1118  * \brief Display today's events.
1119  */
1120 void calendar_summary_view(void) {
1121         int i;
1122         icalproperty *p;
1123         struct icaltimetype t;
1124         time_t event_tt;
1125         struct tm event_tm;
1126         struct tm today_tm;
1127         time_t now;
1128         int all_day_event = 0;
1129         char timestring[SIZ];
1130
1131         if (WC->num_cal == 0) {
1132                 return;
1133         }
1134
1135         now = time(NULL);
1136         localtime_r(&now, &today_tm);
1137
1138         for (i=0; i<(WC->num_cal); ++i) {
1139                 p = icalcomponent_get_first_property(WC->disp_cal[i].cal,
1140                                                 ICAL_DTSTART_PROPERTY);
1141                 if (p != NULL) {
1142                         t = icalproperty_get_dtstart(p);
1143                         event_tt = icaltime_as_timet(t);
1144                         if (t.is_date) {
1145                                 all_day_event = 1;
1146                         }
1147                         else {
1148                                 all_day_event = 0;
1149                         }
1150                         fmt_time(timestring, event_tt);
1151
1152                         if (all_day_event) {
1153                                 gmtime_r(&event_tt, &event_tm);
1154                         }
1155                         else {
1156                                 localtime_r(&event_tt, &event_tm);
1157                         }
1158
1159                         if ( (event_tm.tm_year == today_tm.tm_year)
1160                            && (event_tm.tm_mon == today_tm.tm_mon)
1161                            && (event_tm.tm_mday == today_tm.tm_mday)
1162                            ) {
1163
1164
1165                                 p = icalcomponent_get_first_property(
1166                                                         WC->disp_cal[i].cal,
1167                                                         ICAL_SUMMARY_PROPERTY);
1168                                 if (p != NULL) {
1169                                         escputs((char *)
1170                                                 icalproperty_get_comment(p));
1171                                         wprintf(" (%s)<br />\n", timestring);
1172                                 }
1173                         }
1174                 }
1175         }
1176         free_calendar_buffer();
1177 }
1178
1179
1180 /**
1181  * \brief clean up ical memory
1182  * \todo this could get troubel with future ical versions
1183  */
1184 void free_calendar_buffer(void) {
1185         int i;
1186         if (WC->num_cal) for (i=0; i<(WC->num_cal); ++i) {
1187                 icalcomponent_free(WC->disp_cal[i].cal);
1188         }
1189         WC->num_cal = 0;
1190         free(WC->disp_cal);
1191         WC->disp_cal = NULL;
1192 }
1193
1194
1195
1196 /**
1197  * \brief do the whole calendar page
1198  * view any part of the calender. decide which way, etc.
1199  */
1200 void do_calendar_view(void) {
1201         time_t now;
1202         struct tm tm;
1203         int year, month, day;
1204         char calview[SIZ];
1205
1206         /** In case no date was specified, go with today */
1207         now = time(NULL);
1208         localtime_r(&now, &tm);
1209         year = tm.tm_year + 1900;
1210         month = tm.tm_mon + 1;
1211         day = tm.tm_mday;
1212
1213         /** Now see if a date was specified */
1214         if (!IsEmptyStr(bstr("year"))) year = atoi(bstr("year"));
1215         if (!IsEmptyStr(bstr("month"))) month = atoi(bstr("month"));
1216         if (!IsEmptyStr(bstr("day"))) day = atoi(bstr("day"));
1217
1218         /** How would you like that cooked? */
1219         if (!IsEmptyStr(bstr("calview"))) {
1220                 strcpy(calview, bstr("calview"));
1221         }
1222         else {
1223                 strcpy(calview, "month");
1224         }
1225
1226         /** Display the selected view */
1227         if (!strcasecmp(calview, "day")) {
1228                 calendar_day_view(year, month, day);
1229         }
1230         else if (!strcasecmp(calview, "week")) {
1231                 calendar_week_view(year, month, day);
1232         }
1233         else {
1234                 if (WC->wc_view == VIEW_CALBRIEF) {
1235                         calendar_brief_month_view(year, month, day);
1236                 }
1237                 else {
1238                         calendar_month_view(year, month, day);
1239                 }
1240         }
1241
1242         /** Free the calendar stuff */
1243         free_calendar_buffer();
1244
1245 }
1246
1247
1248 /**
1249  * \brief get task due date
1250  * Helper function for do_tasks_view().
1251  * \param vtodo a task to get the due date
1252  * \return the date/time due.
1253  */
1254 time_t get_task_due_date(icalcomponent *vtodo) {
1255         icalproperty *p;
1256
1257         if (vtodo == NULL) {
1258                 return(0L);
1259         }
1260
1261         /**
1262          * If we're looking at a fully encapsulated VCALENDAR
1263          * rather than a VTODO component, recurse into the data
1264          * structure until we get a VTODO.
1265          */
1266         if (icalcomponent_isa(vtodo) == ICAL_VCALENDAR_COMPONENT) {
1267                 return get_task_due_date(
1268                         icalcomponent_get_first_component(
1269                                 vtodo, ICAL_VTODO_COMPONENT
1270                         )
1271                 );
1272         }
1273
1274         p = icalcomponent_get_first_property(vtodo, ICAL_DUE_PROPERTY);
1275         if (p != NULL) {
1276                 return(icaltime_as_timet(icalproperty_get_due(p)));
1277         }
1278         else {
1279                 return(0L);
1280         }
1281 }
1282
1283
1284 /**
1285  * \brief Compare the due dates of two tasks (this is for sorting)
1286  * \param task1 first task to compare
1287  * \param task2 second task to compare
1288  */
1289 int task_due_cmp(const void *task1, const void *task2) {
1290         time_t t1;
1291         time_t t2;
1292
1293         t1 =  get_task_due_date(((struct disp_cal *)task1)->cal);
1294         t2 =  get_task_due_date(((struct disp_cal *)task2)->cal);
1295
1296         if (t1 < t2) return(-1);
1297         if (t1 > t2) return(1);
1298         return(0);
1299 }
1300
1301
1302
1303
1304 /**
1305  * \brief do the whole task view stuff
1306  */
1307 void do_tasks_view(void) {
1308         int i;
1309         time_t due;
1310         int bg = 0;
1311         char buf[SIZ];
1312         icalproperty *p;
1313
1314         wprintf("<div class=\"fix_scrollbar_bug\">"
1315                 "<table class=\"calendar_view_background\">\n<tr>\n"
1316                 "<th>");
1317         wprintf(_("Name of task"));
1318         wprintf("</th><th>");
1319         wprintf(_("Date due"));
1320         wprintf("</th></tr>\n"
1321         );
1322
1323         /** Sort them if necessary */
1324         if (WC->num_cal > 1) {
1325                 qsort(WC->disp_cal,
1326                         WC->num_cal,
1327                         sizeof(struct disp_cal),
1328                         task_due_cmp
1329                 );
1330         }
1331
1332         if (WC->num_cal) for (i=0; i<(WC->num_cal); ++i) {
1333
1334                 bg = 1 - bg;
1335                 wprintf("<tr bgcolor=\"#%s\"><td>",
1336                         (bg ? "DDDDDD" : "FFFFFF")
1337                 );
1338
1339                 p = icalcomponent_get_first_property(WC->disp_cal[i].cal,
1340                                                         ICAL_SUMMARY_PROPERTY);
1341                 wprintf("<a href=\"display_edit_task?msgnum=%ld&taskrm=",
1342                         WC->disp_cal[i].cal_msgnum );
1343                 urlescputs(WC->wc_roomname);
1344                 wprintf("\">");
1345                 wprintf("<img align=middle "
1346                         "src=\"static/taskmanag_16x.gif\" border=0>&nbsp;");
1347                 if (p != NULL) {
1348                         escputs((char *)icalproperty_get_comment(p));
1349                 }
1350                 wprintf("</a>\n");
1351                 wprintf("</td>\n");
1352
1353                 due = get_task_due_date(WC->disp_cal[i].cal);
1354                 fmt_date(buf, due, 0);
1355                 wprintf("<td><font");
1356                 if (due < time(NULL)) {
1357                         wprintf(" color=\"#FF0000\"");
1358                 }
1359                 wprintf(">%s</font></td></tr>\n", buf);
1360         }
1361
1362         wprintf("</table></div>\n");
1363
1364         /** Free the list */
1365         free_calendar_buffer();
1366
1367 }
1368
1369 #else   /* WEBCIT_WITH_CALENDAR_SERVICE */
1370
1371 /**\brief stub for non-libical builds */
1372 void do_calendar_view(void) {
1373         wprintf("<center><i>");
1374         wprintf(_("The calendar view is not available."));
1375         wprintf("</i></center><br />\n");
1376 }
1377
1378 /**\brief stub for non-libical builds */
1379 void do_tasks_view(void) {
1380         wprintf("<center><I>");
1381         wprintf(_("The tasks view is not available."));
1382         wprintf("</i></center><br />\n");
1383 }
1384
1385 /**\brief stub for non-libical builds */
1386 void ajax_mini_calendar(void) {
1387 }
1388
1389 #endif  /* WEBCIT_WITH_CALENDAR_SERVICE */
1390
1391 /** @} */