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,
 778                                 int year,
 779                                 int month,
 780                                 int day,
 781                                 int notime_events,
 782                                 int dstart,
 783                                 int dend)
 784 {
 785         int i;
 786         icalproperty *p = NULL;
 787         icalproperty *q = NULL;
 788         time_t event_tt;
 789         time_t event_tte;
 790         struct tm event_te;
 791         struct tm event_tm;
 792         int show_event = 0;
 793         int all_day_event = 0;
 794         int ongoing_event = 0;
 795         struct wcsession *WCC = WC;     /* This is done to make it run faster; WC is a function */
 796         struct disp_cal *Cal;
 797         struct icaltimetype t;
 798         struct icaltimetype end_t;
 799         struct icaltimetype today_start_t;
 800         struct icaltimetype today_end_t;
 801         struct tm starting_tm;
 802         struct tm ending_tm;
 803         int top = 0;
 804         int bottom = 0;
 805         int gap = 1;
 806         int startmin = 0;
 807         int diffmin = 0;
 808         int endmin = 0;
 809
 810         char buf[256];
 811         struct tm d_tm;
 812         char d_str[32];
 813
 814         if (WCC->num_cal == 0) {
 815                 /* nothing to display */
 816                 return;
 817         }
 818
 819         /* Create an imaginary event which spans the current day.  Any events which
 820          * overlap with this one take place at least partially in this day.
 821          */
 822         memset(&starting_tm, 0, sizeof(struct tm));
 823         starting_tm.tm_year = year - 1900;
 824         starting_tm.tm_mon = month - 1;
 825         starting_tm.tm_mday = day;
 826         starting_tm.tm_hour = 0;
 827         starting_tm.tm_min = 0;
 828         today_start_t = icaltime_from_timet_with_zone(mktime(&starting_tm), 0, icaltimezone_get_utc_timezone());
 829         today_start_t.is_utc = 1;
 830
 831         memset(&ending_tm, 0, sizeof(struct tm));
 832         ending_tm.tm_year = year - 1900;
 833         ending_tm.tm_mon = month - 1;
 834         ending_tm.tm_mday = day;
 835         ending_tm.tm_hour = 23;
 836         ending_tm.tm_min = 59;
 837         today_end_t = icaltime_from_timet_with_zone(mktime(&ending_tm), 0, icaltimezone_get_utc_timezone());
 838         today_end_t.is_utc = 1;
 839
 840         /* Now loop through our list of events to see which ones occur today.
 841          */
 842         for (i=0; i<(WCC->num_cal); ++i) {
 843                 Cal = &WCC->disp_cal[i];
 844
 845                 all_day_event = 0;
 846                 ongoing_event=0;
 847
 848                 q = icalcomponent_get_first_property(Cal->cal, ICAL_DTSTART_PROPERTY);
 849                 if (q != NULL) {
 850                         t = icalproperty_get_dtstart(q);
 851                         event_tt = icaltime_as_timet(t);
 852                         localtime_r(&event_tt, &event_te);
 853                 }
 854                 else {
 855                         memset(&t, 0, sizeof t);
 856                 }
 857                 q = icalcomponent_get_first_property(Cal->cal, ICAL_DTEND_PROPERTY);
 858                 if (q != NULL) {
 859                         end_t = icalproperty_get_dtend(q);
 860                         event_tte = icaltime_as_timet(end_t);
 861                         localtime_r(&event_tte, &event_tm);
 862                 }
 863                 else {
 864                         memset(&end_t, 0, sizeof end_t);
 865                 }
 866                 if (t.is_date) all_day_event = 1;
 867
 868                 if (all_day_event)
 869                 {
 870                         show_event = ((t.year == year) && (t.month == month) && (t.day == day) && (notime_events));
 871                 }
 872                 else
 873                 {
 874                         show_event = ical_ctdl_is_overlap(t, end_t, today_start_t, today_end_t);
 875                 }
 876
 877                 /* If we determined that this event occurs today, then display it.
 878                  */
 879                 p = icalcomponent_get_first_property(Cal->cal,ICAL_SUMMARY_PROPERTY);
 880
 881                 if ((show_event) && (p != NULL)) {
 882
 883                         if ((event_te.tm_mday != day) || (event_tm.tm_mday != day)) ongoing_event = 1;
 884
 885                         if (all_day_event && notime_events)
 886                         {
 887                               wprintf("<li class=\"event\"> "
 888                                 "<a href=\"display_edit_event?"
 889                                 "msgnum=%ld&calview=day&year=%d&month=%d&day=%d\" "
 890                                 " class=\"event_title\" "
 891                                 " btt_tooltext=\"",
 892                                         Cal->cal_msgnum, year, month, day);
 893                                 wprintf("<i>%s</i><br />", _("All day event"));
 894                                 wprintf("<i>%s</i> ",    _("Summary:"));
 895                                 escputs((char *) icalproperty_get_comment(p));
 896                                 wprintf("<br />");
 897                                 q = icalcomponent_get_first_property(Cal->cal,ICAL_LOCATION_PROPERTY);
 898                                 if (q) {
 899                                         wprintf("<i>%s</i> ", _("Location:"));
 900                                         escputs((char *)icalproperty_get_comment(q));
 901                                         wprintf("<br />");
 902                                         }
 903                                 memset(&d_tm, 0, sizeof d_tm);
 904                                 d_tm.tm_year = t.year - 1900;
 905                                 d_tm.tm_mon = t.month - 1;
 906                                 d_tm.tm_mday = t.day;
 907                                 wc_strftime(d_str, sizeof d_str, "%x", &d_tm);
 908                                 wprintf("<i>%s</i> %s<br>",_("Date:"), d_str);
 909                                 q = icalcomponent_get_first_property(Cal->cal,ICAL_DESCRIPTION_PROPERTY);
 910                                 if (q) {
 911                                         wprintf("<i>%s</i> ", _("Notes:"));
 912                                         escputs((char *)icalproperty_get_comment(q));
 913                                         wprintf("<br />");
 914                                 }
 915                                 wprintf("\">");
 916                                 escputs((char *) icalproperty_get_comment(p));
 917                                 wprintf("</a> <span>(");
 918                                 wprintf(_("All day event"));
 919                                 wprintf(")</span></li>\n");
 920                         }
 921                         else if (ongoing_event && notime_events)
 922                         {
 923                                 wprintf("<li class=\"event\"> "
 924                                 "<a href=\"display_edit_event?"
 925                                 "msgnum=%ld&calview=day&year=%d&month=%d&day=%d\" "
 926                                 " class=\"event_title\" "
 927                                 "btt_tooltext=\"",
 928                                 Cal->cal_msgnum, year, month, day);
 929                                 wprintf("<i>%s</i><br />", _("Ongoing event"));
 930                                 wprintf("<i>%s</i> ",    _("Summary:"));
 931                                 escputs((char *) icalproperty_get_comment(p));
 932                                 wprintf("<br />");
 933                                 q = icalcomponent_get_first_property(Cal->cal,ICAL_LOCATION_PROPERTY);
 934                                 if (q) {
 935                                         wprintf("<i>%s</i> ", _("Location:"));
 936                                         escputs((char *)icalproperty_get_comment(q));
 937                                         wprintf("<br />");
 938                                         }
 939                                 fmt_date(buf, event_tt, 1);
 940                                 wprintf("<i>%s</i> %s<br>", _("Starting date/time:"), buf);
 941                                 fmt_date(buf, event_tte, 1);
 942                                 wprintf("<i>%s</i> %s<br>", _("Ending date/time:"), buf);
 943                                 q = icalcomponent_get_first_property(Cal->cal,ICAL_DESCRIPTION_PROPERTY);
 944                                 if (q) {
 945                                         wprintf("<i>%s</i> ", _("Notes:"));
 946                                         escputs((char *)icalproperty_get_comment(q));
 947                                         wprintf("<br />");
 948                                 }
 949                                 wprintf("\">");
 950                                 escputs((char *) icalproperty_get_comment(p));
 951                                 wprintf("</a> <span>(");
 952                                 wprintf(_("Ongoing event"));
 953                                 wprintf(")</span></li>\n");
 954                         }
 955                         else if (!all_day_event && !ongoing_event && !notime_events)
 956                         {
 957                                 gap++;
 958
 959                                 if (event_te.tm_mday != day) event_te.tm_hour = 0;
 960                                 if (event_tm.tm_mday != day) event_tm.tm_hour = 24;
 961
 962                                 /* Calculate the location of the top of the box */
 963                                 if (event_te.tm_hour < dstart) {
 964                                         startmin = diffmin = event_te.tm_min / 6;
 965                                         top = (event_te.tm_hour * 10) + startmin;
 966                                 }
 967                                 else if ((event_te.tm_hour >= dstart) && (event_te.tm_hour <= dend)) {
 968                                         startmin = diffmin = (event_te.tm_min / 2);
 969                                         top = (dstart * 10) + ((event_te.tm_hour - dstart) * 30) + startmin;
 970                                 }
 971                                 else if (event_te.tm_hour >dend) {
 972                                         startmin = diffmin = event_te.tm_min / 6;
 973                                         top = (dstart * 10) + ((dend - dstart - 1) * 30) + ((event_tm.tm_hour - dend + 1) * 10) + startmin ;
 974                                 }
 975                                 else {
 976                                         /* should never get here */
 977                                 }
 978
 979                                 /* Calculate the location of the bottom of the box */
 980                                 if (event_tm.tm_hour < dstart) {
 981                                         endmin = diffmin = event_tm.tm_min / 6;
 982                                         bottom = (event_tm.tm_hour * 10) + endmin;
 983                                 }
 984                                 else if ((event_tm.tm_hour >= dstart) && (event_tm.tm_hour <= dend)) {
 985                                         endmin = diffmin = (event_tm.tm_min / 2);
 986                                         bottom = (dstart * 10) + ((event_tm.tm_hour - dstart) * 30) + endmin ;
 987                                 }
 988                                 else if (event_tm.tm_hour >dend) {
 989                                         endmin = diffmin = event_tm.tm_min / 6;
 990                                         bottom = (dstart * 10) + ((dend - dstart + 1) * 30) + ((event_tm.tm_hour - dend - 1) * 10) + endmin;
 991                                 }
 992                                 else {
 993                                         /* should never get here */
 994                                 }
 995
 996                                 wprintf("<dd  class=\"event\" "
 997                                         "style=\"position: absolute; "
 998                                         "top:%dpx; left:%dpx; "
 999                                         "height:%dpx; \" >",
1000                                         top, (gap * 40), (bottom-top)
1001                                         );
1002                                 wprintf("<a href=\"display_edit_event?"
1003                                         "msgnum=%ld&calview=day&year=%d&month=%d&day=%d&hour=%d\" "
1004                                         "class=\"event_title\" "
1005                                         "btt_tooltext=\"",
1006                                         Cal->cal_msgnum, year, month, day, t.hour);
1007                                 wprintf("<i>%s</i> ",    _("Summary:"));
1008                                 escputs((char *) icalproperty_get_comment(p));
1009                                 wprintf("<br />");
1010                                 q = icalcomponent_get_first_property(Cal->cal,ICAL_LOCATION_PROPERTY);
1011                                 if (q) {
1012                                         wprintf("<i>%s</i> ", _("Location:"));
1013                                         escputs((char *)icalproperty_get_comment(q));
1014                                         wprintf("<br />");
1015                                         }
1016                                 fmt_date(buf, event_tt, 1);
1017                                 wprintf("<i>%s</i> %s<br>", _("Starting date/time:"), buf);
1018                                 fmt_date(buf, event_tte, 1);
1019                                 wprintf("<i>%s</i> %s<br>", _("Ending date/time:"), buf);
1020                                 q = icalcomponent_get_first_property(Cal->cal,ICAL_DESCRIPTION_PROPERTY);
1021                                 if (q) {
1022                                         wprintf("<i>%s</i> ", _("Notes:"));
1023                                         escputs((char *)icalproperty_get_comment(q));
1024                                         wprintf("<br />");
1025                                 }
1026                                 wprintf("\">");
1027
1028                                 escputs((char *) icalproperty_get_comment(p));
1029                                 wprintf("</a></dd>\n");
1030                         }
1031                 }
1032         }
1033 }
1034
1035 /**
1036  * \brief view one day
1037  * \param year the year
1038  * \param month the month
1039  * \param day the day we want to display
1040  */
1041 void calendar_day_view(int year, int month, int day) {
1042         int hour;
1043         struct icaltimetype today, yesterday, tomorrow;
1044         int daystart = 8;
1045         int dayend = 17;
1046         char daystart_str[16], dayend_str[16];
1047         struct tm d_tm;
1048         char d_str[128];
1049         int time_format;
1050         time_t today_t;
1051         int timeline = 30;
1052         int extratimeline = 0;
1053         int gap = 0;
1054
1055         time_format = get_time_format_cached ();
1056         get_preference("daystart", daystart_str, sizeof daystart_str);
1057         if (!IsEmptyStr(daystart_str)) daystart = atoi(daystart_str);
1058         get_preference("dayend", dayend_str, sizeof dayend_str);
1059         if (!IsEmptyStr(dayend_str)) dayend = atoi(dayend_str);
1060
1061         /** Today's date */
1062         memset(&d_tm, 0, sizeof d_tm);
1063         d_tm.tm_year = year - 1900;
1064         d_tm.tm_mon = month - 1;
1065         d_tm.tm_mday = day;
1066         today_t = mktime(&d_tm);
1067
1068         /** Figure out the dates for "yesterday" and "tomorrow" links */
1069
1070         memset(&today, 0, sizeof(struct icaltimetype));
1071         today.year = year;
1072         today.month = month;
1073         today.day = day;
1074         today.is_date = 1;
1075
1076         memcpy(&yesterday, &today, sizeof(struct icaltimetype));
1077         --yesterday.day;
1078         yesterday = icaltime_normalize(yesterday);
1079
1080         memcpy(&tomorrow, &today, sizeof(struct icaltimetype));
1081         ++tomorrow.day;
1082         tomorrow = icaltime_normalize(tomorrow);
1083
1084         wprintf("<div class=\"fix_scrollbar_bug\">");
1085
1086         /** Inner table (the real one) */
1087         wprintf("<table class=\"calendar\" id=\"inner_day\"><tr> \n");
1088
1089         /** Innermost cell (contains hours etc.) */
1090         wprintf("<td class=\"events_of_the_day\" >");
1091         wprintf("<dl class=\"events\" >");
1092
1093         /** Now the middle of the day... */
1094
1095         extratimeline = timeline / 3;
1096
1097         for (hour = 0; hour < daystart; ++hour) {       /* could do HEIGHT=xx */
1098                 wprintf("<dt class=\"extrahour\"        "
1099                         "style=\"               "
1100                         "position: absolute;    "
1101                         "top: %dpx; left: 0px;  "
1102                         "height: %dpx;          "
1103                         "\" >                   "
1104                         "<a href=\"display_edit_event?msgnum=0"
1105                         "&year=%d&month=%d&day=%d&hour=%d&minute=0\">",
1106                         (hour * extratimeline ), extratimeline,
1107                         year, month, day, hour
1108                 );
1109
1110                 if (time_format == WC_TIMEFORMAT_24) {
1111                         wprintf("%2d:00</a> ", hour);
1112                 }
1113                 else {
1114                         wprintf("%d:00%s</a> ",
1115                                 (hour <= 12 ? hour : hour-12),
1116                                 (hour < 12 ? "am" : "pm")
1117                         );
1118                 }
1119
1120                 wprintf("</dt>");
1121         }
1122
1123         gap = daystart * extratimeline;
1124
1125         for (hour = daystart; hour <= dayend; ++hour) {       /* could do HEIGHT=xx */
1126                 wprintf("<dt class=\"hour\"     "
1127                         "style=\"               "
1128                         "position: absolute;    "
1129                         "top: %dpx; left: 0px;  "
1130                         "height: %dpx;          "
1131                         "\" >                   "
1132                         "<a href=\"display_edit_event?msgnum=0"
1133                         "&year=%d&month=%d&day=%d&hour=%d&minute=0\">",
1134                         gap + ((hour - daystart) * timeline ), timeline,
1135                         year, month, day, hour
1136                 );
1137
1138                 if (time_format == WC_TIMEFORMAT_24) {
1139                         wprintf("%2d:00</a> ", hour);
1140                 }
1141                 else {
1142                         wprintf("%d:00%s</a> ",
1143                                 (hour <= 12 ? hour : hour-12),
1144                                 (hour < 12 ? "am" : "pm")
1145                         );
1146                 }
1147
1148                 wprintf("</dt>");
1149         }
1150
1151         gap = gap + ((dayend - daystart + 1) * timeline);
1152
1153         for (hour = (dayend + 1); hour < 24; ++hour) {       /* could do HEIGHT=xx */
1154                 wprintf("<dt class=\"extrahour\"     "
1155                         "style=\"               "
1156                         "position: absolute;    "
1157                         "top: %dpx; left: 0px;  "
1158                         "height: %dpx;          "
1159                         "\" >                   "
1160                         "<a href=\"display_edit_event?msgnum=0"
1161                         "&year=%d&month=%d&day=%d&hour=%d&minute=0\">",
1162                         gap + ((hour - dayend - 1) * extratimeline ), extratimeline,
1163                         year, month, day, hour
1164                 );
1165
1166                 if (time_format == WC_TIMEFORMAT_24) {
1167                         wprintf("%2d:00</a> ", hour);
1168                 }
1169                 else {
1170                         wprintf("%d:00%s</a> ",
1171                                 (hour <= 12 ? hour : hour-12),
1172                                 (hour < 12 ? "am" : "pm")
1173                         );
1174                 }
1175
1176                 wprintf("</dt>");
1177         }
1178
1179         /* Display events with start and end times on this day */
1180         calendar_day_view_display_events(today_t, year, month, day, 0, daystart, dayend);
1181
1182         wprintf("</dl>");
1183         wprintf("</td>");                       /* end of innermost table */
1184
1185         /** Display extra events (start/end times not present or not today) in the middle column */
1186         wprintf("<td class=\"extra_events\">");
1187
1188         wprintf("<ul>");
1189
1190         /** Display all-day events */
1191         calendar_day_view_display_events(today_t, year, month, day, 1, daystart, dayend);
1192
1193         wprintf("</ul>");
1194
1195         wprintf("</td>");       /** end extra on the middle */
1196
1197         wprintf("<td width=20%% align=center valign=top>");     /** begin stuff-on-the-right */
1198
1199         /** Begin todays-date-with-left-and-right-arrows */
1200         wprintf("<table border=0 width=100%% "
1201                 "cellspacing=0 cellpadding=0 bgcolor=\"#FFFFFF\">\n");
1202         wprintf("<tr>");
1203
1204         /** Left arrow */
1205         wprintf("<td align=center>");
1206         wprintf("<a href=\"readfwd?calview=day&year=%d&month=%d&day=%d\">",
1207                 yesterday.year, yesterday.month, yesterday.day);
1208         wprintf("<img align=middle src=\"static/prevdate_32x.gif\" border=0></A>");
1209         wprintf("</td>");
1210
1211         wc_strftime(d_str, sizeof d_str,
1212                 "<td align=center>"
1213                 "<font size=+2>%B</font><br />"
1214                 "<font size=+3>%d</font><br />"
1215                 "<font size=+2>%Y</font><br />"
1216                 "</td>",
1217                 &d_tm
1218         );
1219         wprintf("%s", d_str);
1220
1221         /** Right arrow */
1222         wprintf("<td align=center>");
1223         wprintf("<a href=\"readfwd?calview=day&year=%d&month=%d&day=%d\">",
1224                 tomorrow.year, tomorrow.month, tomorrow.day);
1225         wprintf("<img align=middle src=\"static/nextdate_32x.gif\""
1226                 " border=0></a>\n");
1227         wprintf("</td>");
1228
1229         wprintf("</tr></table>\n");
1230         /** End todays-date-with-left-and-right-arrows */
1231
1232         /** Embed a mini month calendar in this space */
1233         wprintf("<br />\n");
1234         embeddable_mini_calendar(year, month, "readfwd?calview=day&year=%d&month=%d&day=%d");
1235
1236         wprintf("</font></center>\n");
1237
1238         wprintf("</td></tr>");                  /** end stuff-on-the-right */
1239
1240         wprintf("</table>"                      /** end of inner table */
1241                 "</div>");
1242
1243         wprintf("<script type=\"text/javascript\">"
1244                 " setTimeout(\"btt_enableTooltips('inner_day')\", 1); "
1245                 "</script>\n"
1246         );
1247 }
1248
1249
1250 /**
1251  * \brief Display today's events.
1252  */
1253 void calendar_summary_view(void) {
1254         int i;
1255         icalproperty *p;
1256         struct icaltimetype t;
1257         time_t event_tt;
1258         struct tm event_tm;
1259         struct tm today_tm;
1260         time_t now;
1261         int all_day_event = 0;
1262         char timestring[SIZ];
1263
1264         if (WC->num_cal == 0) {
1265                 return;
1266         }
1267
1268         now = time(NULL);
1269         localtime_r(&now, &today_tm);
1270
1271         for (i=0; i<(WC->num_cal); ++i) {
1272                 p = icalcomponent_get_first_property(WC->disp_cal[i].cal,
1273                                                 ICAL_DTSTART_PROPERTY);
1274                 if (p != NULL) {
1275                         t = icalproperty_get_dtstart(p);
1276                         event_tt = icaltime_as_timet(t);
1277                         if (t.is_date) {
1278                                 all_day_event = 1;
1279                         }
1280                         else {
1281                                 all_day_event = 0;
1282                         }
1283                         fmt_time(timestring, event_tt);
1284
1285                         if (all_day_event) {
1286                                 gmtime_r(&event_tt, &event_tm);
1287                         }
1288                         else {
1289                                 localtime_r(&event_tt, &event_tm);
1290                         }
1291
1292                         if ( (event_tm.tm_year == today_tm.tm_year)
1293                            && (event_tm.tm_mon == today_tm.tm_mon)
1294                            && (event_tm.tm_mday == today_tm.tm_mday)
1295                            ) {
1296
1297
1298                                 p = icalcomponent_get_first_property(
1299                                                         WC->disp_cal[i].cal,
1300                                                         ICAL_SUMMARY_PROPERTY);
1301                                 if (p != NULL) {
1302                                         escputs((char *)
1303                                                 icalproperty_get_comment(p));
1304                                         wprintf(" (%s)<br />\n", timestring);
1305                                 }
1306                         }
1307                 }
1308         }
1309         free_calendar_buffer();
1310 }
1311
1312
1313 /**
1314  * \brief clean up ical memory
1315  * \todo this could get troubel with future ical versions
1316  */
1317 void free_calendar_buffer(void) {
1318         int i;
1319         if (WC->num_cal) for (i=0; i<(WC->num_cal); ++i) {
1320                 icalcomponent_free(WC->disp_cal[i].cal);
1321         }
1322         WC->num_cal = 0;
1323         free(WC->disp_cal);
1324         WC->disp_cal = NULL;
1325 }
1326
1327
1328
1329 /**
1330  * \brief do the whole calendar page
1331  * view any part of the calender. decide which way, etc.
1332  */
1333 void do_calendar_view(void) {
1334         time_t now;
1335         struct tm tm;
1336         int year, month, day;
1337         char calview[SIZ];
1338
1339         /** In case no date was specified, go with today */
1340         now = time(NULL);
1341         localtime_r(&now, &tm);
1342         year = tm.tm_year + 1900;
1343         month = tm.tm_mon + 1;
1344         day = tm.tm_mday;
1345
1346         /** Now see if a date was specified */
1347         if (!IsEmptyStr(bstr("year"))) year = atoi(bstr("year"));
1348         if (!IsEmptyStr(bstr("month"))) month = atoi(bstr("month"));
1349         if (!IsEmptyStr(bstr("day"))) day = atoi(bstr("day"));
1350
1351         /** How would you like that cooked? */
1352         if (!IsEmptyStr(bstr("calview"))) {
1353                 strcpy(calview, bstr("calview"));
1354         }
1355         else {
1356                 strcpy(calview, "month");
1357         }
1358
1359         /** Display the selected view */
1360         if (!strcasecmp(calview, "day")) {
1361                 calendar_day_view(year, month, day);
1362         }
1363         else if (!strcasecmp(calview, "week")) {
1364                 calendar_week_view(year, month, day);
1365         }
1366         else {
1367                 if (WC->wc_view == VIEW_CALBRIEF) {
1368                         calendar_brief_month_view(year, month, day);
1369                 }
1370                 else {
1371                         calendar_month_view(year, month, day);
1372                 }
1373         }
1374
1375         /** Free the calendar stuff */
1376         free_calendar_buffer();
1377
1378 }
1379
1380
1381 /**
1382  * \brief get task due date
1383  * Helper function for do_tasks_view().
1384  * \param vtodo a task to get the due date
1385  * \return the date/time due.
1386  */
1387 time_t get_task_due_date(icalcomponent *vtodo) {
1388         icalproperty *p;
1389
1390         if (vtodo == NULL) {
1391                 return(0L);
1392         }
1393
1394         /**
1395          * If we're looking at a fully encapsulated VCALENDAR
1396          * rather than a VTODO component, recurse into the data
1397          * structure until we get a VTODO.
1398          */
1399         if (icalcomponent_isa(vtodo) == ICAL_VCALENDAR_COMPONENT) {
1400                 return get_task_due_date(
1401                         icalcomponent_get_first_component(
1402                                 vtodo, ICAL_VTODO_COMPONENT
1403                         )
1404                 );
1405         }
1406
1407         p = icalcomponent_get_first_property(vtodo, ICAL_DUE_PROPERTY);
1408         if (p != NULL) {
1409                 return(icaltime_as_timet(icalproperty_get_due(p)));
1410         }
1411         else {
1412                 return(0L);
1413         }
1414 }
1415
1416
1417 /**
1418  * \brief Compare the due dates of two tasks (this is for sorting)
1419  * \param task1 first task to compare
1420  * \param task2 second task to compare
1421  */
1422 int task_due_cmp(const void *task1, const void *task2) {
1423         time_t t1;
1424         time_t t2;
1425
1426         t1 =  get_task_due_date(((struct disp_cal *)task1)->cal);
1427         t2 =  get_task_due_date(((struct disp_cal *)task2)->cal);
1428
1429         if (t1 < t2) return(-1);
1430         if (t1 > t2) return(1);
1431         return(0);
1432 }
1433
1434
1435
1436
1437 /**
1438  * \brief do the whole task view stuff
1439  */
1440 void do_tasks_view(void) {
1441         int i;
1442         time_t due;
1443         int bg = 0;
1444         char buf[SIZ];
1445         icalproperty *p;
1446
1447         wprintf("<div class=\"fix_scrollbar_bug\">"
1448                 "<table class=\"calendar_view_background\">\n<tr>\n"
1449                 "<th>");
1450         wprintf(_("Name of task"));
1451         wprintf("</th><th>");
1452         wprintf(_("Date due"));
1453         wprintf("</th></tr>\n"
1454         );
1455
1456         /** Sort them if necessary */
1457         if (WC->num_cal > 1) {
1458                 qsort(WC->disp_cal,
1459                         WC->num_cal,
1460                         sizeof(struct disp_cal),
1461                         task_due_cmp
1462                 );
1463         }
1464
1465         if (WC->num_cal) for (i=0; i<(WC->num_cal); ++i) {
1466
1467                 bg = 1 - bg;
1468                 wprintf("<tr bgcolor=\"#%s\"><td>",
1469                         (bg ? "DDDDDD" : "FFFFFF")
1470                 );
1471
1472                 p = icalcomponent_get_first_property(WC->disp_cal[i].cal,
1473                                                         ICAL_SUMMARY_PROPERTY);
1474                 wprintf("<a href=\"display_edit_task?msgnum=%ld&taskrm=",
1475                         WC->disp_cal[i].cal_msgnum );
1476                 urlescputs(WC->wc_roomname);
1477                 wprintf("\">");
1478                 wprintf("<img align=middle "
1479                         "src=\"static/taskmanag_16x.gif\" border=0>&nbsp;");
1480                 if (p != NULL) {
1481                         escputs((char *)icalproperty_get_comment(p));
1482                 }
1483                 wprintf("</a>\n");
1484                 wprintf("</td>\n");
1485
1486                 due = get_task_due_date(WC->disp_cal[i].cal);
1487                 fmt_date(buf, due, 0);
1488                 wprintf("<td><font");
1489                 if (due < time(NULL)) {
1490                         wprintf(" color=\"#FF0000\"");
1491                 }
1492                 wprintf(">%s</font></td></tr>\n", buf);
1493         }
1494
1495         wprintf("</table></div>\n");
1496
1497         /** Free the list */
1498         free_calendar_buffer();
1499
1500 }
1501
1502 #else   /* WEBCIT_WITH_CALENDAR_SERVICE */
1503
1504 /**\brief stub for non-libical builds */
1505 void do_calendar_view(void) {
1506         wprintf("<center><i>");
1507         wprintf(_("The calendar view is not available."));
1508         wprintf("</i></center><br />\n");
1509 }
1510
1511 /**\brief stub for non-libical builds */
1512 void do_tasks_view(void) {
1513         wprintf("<center><I>");
1514         wprintf(_("The tasks view is not available."));
1515         wprintf("</i></center><br />\n");
1516 }
1517
1518 /**\brief stub for non-libical builds */
1519 void ajax_mini_calendar(void) {
1520 }
1521
1522 #endif  /* WEBCIT_WITH_CALENDAR_SERVICE */
1523
1524 /** @} */