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=month&year=%d&month=%d&day=%d\""
 264                                         " btt_tooltext=\"",
 265                                         WC->disp_cal[i].cal_msgnum,
 266                                         year, month, day
 267                                 );
 268
 269                                 wprintf("<i>%s</i> ", _("Summary:"));
 270                                 escputs((char *)icalproperty_get_comment(p));
 271                                 wprintf("<br />");
 272
 273                                 q = icalcomponent_get_first_property(
 274                                         WC->disp_cal[i].cal,
 275                                         ICAL_LOCATION_PROPERTY);
 276                                 if (q) {
 277                                         wprintf("<i>%s</i> ", _("Location:"));
 278                                         escputs((char *)icalproperty_get_comment(q));
 279                                         wprintf("<br />");
 280                                         }
 281
 282                                 /**
 283                                  * Only show start/end times if we're actually looking at the VEVENT
 284                                  * component.  Otherwise it shows bogus dates for e.g. timezones
 285                                  */
 286                                 if (icalcomponent_isa(Cal->cal) == ICAL_VEVENT_COMPONENT) {
 287
 288                                         q = icalcomponent_get_first_property(Cal->cal, ICAL_DTSTART_PROPERTY);
 289                                         if (q != NULL) {
 290                                                 t = icalproperty_get_dtstart(q);
 291
 292                                                 if (t.is_date) {
 293                                                         struct tm d_tm;
 294                                                         char d_str[32];
 295                                                         memset(&d_tm, 0, sizeof d_tm);
 296                                                         d_tm.tm_year = t.year - 1900;
 297                                                         d_tm.tm_mon = t.month - 1;
 298                                                         d_tm.tm_mday = t.day;
 299                                                         wc_strftime(d_str, sizeof d_str, "%x", &d_tm);
 300                                                         wprintf("<i>%s</i> %s<br>",
 301                                                                 _("Date:"), d_str);
 302                                                 }
 303                                                 else {
 304                                                         tt = icaltime_as_timet(t);
 305                                                         webcit_fmt_date(buf, tt, 1);
 306                                                         wprintf("<i>%s</i> %s<br>",
 307                                                                 _("Starting date/time:"), buf);
 308
 309                                                         /* Embed the 'show end date/time' loop inside here so it
 310                                                          * only executes if this is NOT an all day event.
 311                                                          */
 312                                                         q = icalcomponent_get_first_property(Cal->cal, ICAL_DTEND_PROPERTY);
 313                                                         if (q != NULL) {
 314                                                                 t = icalproperty_get_dtend(q);
 315                                                                 tt = icaltime_as_timet(t);
 316                                                                 webcit_fmt_date(buf, tt, 1);
 317                                                                 wprintf("<i>%s</i> %s<br>", _("Ending date/time:"), buf);
 318                                                         }
 319
 320                                                 }
 321                                         }
 322
 323                                 }
 324
 325                                 q = icalcomponent_get_first_property(Cal->cal, ICAL_DESCRIPTION_PROPERTY);
 326                                 if (q) {
 327                                         wprintf("<i>%s</i> ", _("Notes:"));
 328                                         escputs((char *)icalproperty_get_comment(q));
 329                                         wprintf("<br />");
 330                                 }
 331
 332                                 wprintf("\">");
 333                                 escputs((char *)
 334                                         icalproperty_get_comment(p));
 335                                 wprintf("</a></font><br />\n");
 336
 337                                 if (all_day_event) {
 338                                         wprintf("</td></tr></table>");
 339                                 }
 340
 341                         }
 342
 343                 }
 344
 345
 346         }
 347 }
 348
 349
 350 /**
 351  * \brief Display one day of a whole month view of a calendar
 352  * \param thetime the month we want to see
 353  */
 354 void calendar_month_view_brief_events(time_t thetime, const char *daycolor) {
 355         int i;
 356         time_t event_tt;
 357         time_t event_tts;
 358         time_t event_tte;
 359         struct tm event_tms;
 360         struct tm event_tme;
 361         struct tm today_tm;
 362         icalproperty *p;
 363         icalproperty *e;
 364         struct icaltimetype t;
 365         int month, day, year;
 366         int all_day_event = 0;
 367         char *timeformat;
 368         int time_format;
 369
 370         time_format = get_time_format_cached ();
 371
 372         if (time_format == WC_TIMEFORMAT_24) timeformat="%k:%M";
 373         else timeformat="%I:%M %p";
 374
 375         localtime_r(&thetime, &today_tm);
 376         month = today_tm.tm_mon + 1;
 377         day = today_tm.tm_mday;
 378         year = today_tm.tm_year + 1900;
 379
 380         for (i=0; i<(WC->num_cal); ++i) {
 381                 p = icalcomponent_get_first_property(WC->disp_cal[i].cal,
 382                                                 ICAL_DTSTART_PROPERTY);
 383                 if (p != NULL) {
 384                         t = icalproperty_get_dtstart(p);
 385                         event_tt = icaltime_as_timet(t);
 386                         event_tts=event_tt;
 387                         if (t.is_date) all_day_event = 1;
 388                         else all_day_event = 0;
 389
 390                         if (all_day_event) {
 391                                 gmtime_r(&event_tts, &event_tms);
 392                         }
 393                         else {
 394                                 localtime_r(&event_tts, &event_tms);
 395                         }
 396                         /** \todo epoch &! daymask */
 397                         if ((event_tms.tm_year == today_tm.tm_year)
 398                            && (event_tms.tm_mon == today_tm.tm_mon)
 399                            && (event_tms.tm_mday == today_tm.tm_mday)) {
 400
 401
 402                                 char sbuf[255];
 403                                 char ebuf[255];
 404
 405                                 p = icalcomponent_get_first_property(
 406                                                         WC->disp_cal[i].cal,
 407                                                         ICAL_SUMMARY_PROPERTY);
 408                                 e = icalcomponent_get_first_property(
 409                                                         WC->disp_cal[i].cal,
 410                                                         ICAL_DTEND_PROPERTY);
 411                                 if ((p != NULL) && (e != NULL)) {
 412                                         time_t difftime;
 413                                         int hours, minutes;
 414                                         t = icalproperty_get_dtend(e);
 415                                         event_tte = icaltime_as_timet(t);
 416                                         localtime_r(&event_tte, &event_tme);
 417                                         difftime=(event_tte-event_tts)/60;
 418                                         hours=(int)(difftime / 60);
 419                                         minutes=difftime % 60;
 420                                         wprintf("<tr><td bgcolor='%s'>%i:%2i</td><td bgcolor='%s'>"
 421                                                         "<font size=-1>"
 422                                                         "<a href=\"display_edit_event?msgnum=%ld&calview=calbrief&year=%s&month=%s&day=%s\">",
 423                                                         daycolor,
 424                                                         hours, minutes,
 425                                                         daycolor,
 426                                                         WC->disp_cal[i].cal_msgnum,
 427                                                         bstr("year"),
 428                                                         bstr("month"),
 429                                                         bstr("day")
 430                                                         );
 431
 432                                         escputs((char *)
 433                                                         icalproperty_get_comment(p));
 434                                         /** \todo: allso ammitime format */
 435                                         wc_strftime(&sbuf[0], sizeof(sbuf), timeformat, &event_tms);
 436                                         wc_strftime(&ebuf[0], sizeof(sbuf), timeformat, &event_tme);
 437
 438                                         wprintf("</a></font></td>"
 439                                                         "<td bgcolor='%s'>%s</td><td bgcolor='%s'>%s</td></tr>",
 440                                                         daycolor,
 441                                                         sbuf,
 442                                                         daycolor,
 443                                                         ebuf);
 444
 445                                 }
 446
 447                         }
 448
 449
 450                 }
 451         }
 452 }
 453
 454
 455 /**
 456  * \brief view one month. pretty view
 457  * \param year the year
 458  * \param month the month
 459  * \param day the actual day we want to see
 460  */
 461 void calendar_month_view(int year, int month, int day) {
 462         struct tm starting_tm;
 463         struct tm tm;
 464         time_t thetime;
 465         int i;
 466         time_t previous_month;
 467         time_t next_month;
 468         time_t colheader_time;
 469         struct tm colheader_tm;
 470         char colheader_label[32];
 471         int chg_month = 0;
 472         int weekstart = 0;
 473         char weekstart_buf[16];
 474
 475         /* Determine what day to start.
 476          */
 477         get_preference("weekstart", weekstart_buf, sizeof weekstart_buf);
 478         weekstart = atoi(weekstart_buf);
 479
 480         /*
 481          * Now back up to the 1st of the month...
 482          */
 483         memset(&starting_tm, 0, sizeof(struct tm));
 484
 485         starting_tm.tm_year = year - 1900;
 486         starting_tm.tm_mon = month - 1;
 487         starting_tm.tm_mday = day;
 488         thetime = mktime(&starting_tm);
 489
 490         memcpy(&tm, &starting_tm, sizeof(struct tm));
 491         while (tm.tm_mday != 1) {
 492                 thetime = thetime - (time_t)86400;      /* go back 24 hours */
 493                 localtime_r(&thetime, &tm);
 494         }
 495
 496         /** Determine previous and next months ... for links */
 497         previous_month = thetime - (time_t)864000L;     /* back 10 days */
 498         next_month = thetime + (time_t)(31L * 86400L);  /* ahead 31 days */
 499
 500         /** Now back up until we're on the user's preferred start day */
 501         localtime_r(&thetime, &tm);
 502         while (tm.tm_wday != weekstart) {
 503                 thetime = thetime - (time_t)86400;      /* go back 24 hours */
 504                 localtime_r(&thetime, &tm);
 505         }
 506
 507         /** Outer table (to get the background color) */
 508         wprintf("<div class=\"fix_scrollbar_bug\">"
 509                 "<table class=\"calendar\"> \n <tr><td>");
 510
 511         wprintf("<table width=100%% border=0 cellpadding=0 cellspacing=0><tr>\n");
 512
 513         wprintf("<td align=center>");
 514
 515         localtime_r(&previous_month, &tm);
 516         wprintf("<a href=\"readfwd?calview=month&year=%d&month=%d&day=1\">",
 517                 (int)(tm.tm_year)+1900, tm.tm_mon + 1);
 518         wprintf("<img align=middle src=\"static/prevdate_32x.gif\" border=0></A>\n");
 519
 520         wc_strftime(colheader_label, sizeof colheader_label, "%B", &starting_tm);
 521         wprintf("&nbsp;&nbsp;"
 522                 "<font size=+1 color=\"#FFFFFF\">"
 523                 "%s %d"
 524                 "</font>"
 525                 "&nbsp;&nbsp;", colheader_label, year);
 526
 527         localtime_r(&next_month, &tm);
 528         wprintf("<a href=\"readfwd?calview=month&year=%d&month=%d&day=1\">",
 529                 (int)(tm.tm_year)+1900, tm.tm_mon + 1);
 530         wprintf("<img align=middle src=\"static/nextdate_32x.gif\" border=0></A>\n");
 531
 532         wprintf("</td></tr></table>\n");
 533
 534         /** Inner table (the real one) */
 535         wprintf("<table width=100%% border=0 cellpadding=1 cellspacing=1 "
 536                 "bgcolor=#204B78 id=\"inner_month\"><tr>");
 537         colheader_time = thetime;
 538         for (i=0; i<7; ++i) {
 539                 colheader_time = thetime + (i * 86400) ;
 540                 localtime_r(&colheader_time, &colheader_tm);
 541                 wc_strftime(colheader_label, sizeof colheader_label, "%A", &colheader_tm);
 542                 wprintf("<th align=center width=14%%>"
 543                         "<font color=\"#FFFFFF\">%s</font></th>", colheader_label);
 544
 545         }
 546         wprintf("</tr>\n");
 547
 548
 549         /** Now do 35 or 42 days */
 550         for (i = 0; i < 42; ++i) {
 551                 localtime_r(&thetime, &tm);
 552
 553                 if ((i < 35) || (chg_month == 0)) {
 554
 555                         if ((i > 27) && ((tm.tm_mday == 1) || (tm.tm_mday == 31))) {
 556                                 chg_month = 1;
 557                         }
 558                         if (i > 35) {
 559                                 chg_month = 0;
 560                         }
 561
 562                         /** Before displaying Sunday, start a new row */
 563                         if ((i % 7) == 0) {
 564                                 wprintf("<tr>");
 565                         }
 566
 567                         wprintf("<td class=\"cal%s\"><div class=\"day\">",
 568                                 ((tm.tm_mon != month-1) ? "out" :
 569                                 ((tm.tm_wday==0 || tm.tm_wday==6) ? "weekend" :
 570                                 "day"))
 571                         );
 572                         if ((i==0) || (tm.tm_mday == 1)) {
 573                                 wc_strftime(colheader_label, sizeof colheader_label, "%B", &tm);
 574                                 wprintf("%s ", colheader_label);
 575                         }
 576                         wprintf("<a href=\"readfwd?calview=day&year=%d&month=%d&day=%d\">"
 577                                 "%d</a></div>",
 578                                 tm.tm_year + 1900,
 579                                 tm.tm_mon + 1,
 580                                 tm.tm_mday,
 581                                 tm.tm_mday);
 582
 583                         /** put the data here, stupid */
 584                         calendar_month_view_display_events(
 585                                 tm.tm_year + 1900,
 586                                 tm.tm_mon + 1,
 587                                 tm.tm_mday
 588                         );
 589
 590                         wprintf("</td>");
 591
 592                         /** After displaying Saturday, end the row */
 593                         if ((i % 7) == 6) {
 594                                 wprintf("</tr>\n");
 595                         }
 596
 597                 }
 598
 599                 thetime += (time_t)86400;               /** ahead 24 hours */
 600         }
 601
 602         wprintf("</table>"                      /** end of inner table */
 603                 "</td></tr></table>"            /** end of outer table */
 604                 "</div>\n");
 605
 606         /**
 607          * Initialize the bubble tooltips.
 608          *
 609          * Yes, this is as stupid as it looks.  Instead of just making the call
 610          * to btt_enableTooltips() straight away, we have to create a timer event
 611          * and let it initialize as an event after 1 millisecond.  This is to
 612          * work around a bug in Internet Explorer that causes it to crash if we
 613          * manipulate the innerHTML of various DOM nodes while the page is still
 614          * being rendered.  See http://www.shaftek.org/blog/archives/000212.html
 615          * for more information.
 616          */
 617         wprintf("<script type=\"text/javascript\">"
 618                 " setTimeout(\"btt_enableTooltips('inner_month')\", 1); "
 619                 "</script>\n"
 620         );
 621 }
 622
 623 /**
 624  * \brief view one month. brief view
 625  * \param year the year
 626  * \param month the month
 627  * \param day the actual day we want to see
 628  */
 629 void calendar_brief_month_view(int year, int month, int day) {
 630         struct tm starting_tm;
 631         struct tm tm;
 632         time_t thetime;
 633         int i;
 634         time_t previous_month;
 635         time_t next_month;
 636         char month_label[32];
 637
 638         /** Determine what day to start.
 639          * First, back up to the 1st of the month...
 640          */
 641         memset(&starting_tm, 0, sizeof(struct tm));
 642         starting_tm.tm_year = year - 1900;
 643         starting_tm.tm_mon = month - 1;
 644         starting_tm.tm_mday = day;
 645         thetime = mktime(&starting_tm);
 646
 647         memcpy(&tm, &starting_tm, sizeof(struct tm));
 648         while (tm.tm_mday != 1) {
 649                 thetime = thetime - (time_t)86400;      /* go back 24 hours */
 650                 localtime_r(&thetime, &tm);
 651         }
 652
 653         /** Determine previous and next months ... for links */
 654         previous_month = thetime - (time_t)864000L;     /* back 10 days */
 655         next_month = thetime + (time_t)(31L * 86400L);  /* ahead 31 days */
 656
 657         /** Now back up until we're on a Sunday */
 658         localtime_r(&thetime, &tm);
 659         while (tm.tm_wday != 0) {
 660                 thetime = thetime - (time_t)86400;      /* go back 24 hours */
 661                 localtime_r(&thetime, &tm);
 662         }
 663
 664         /** Outer table (to get the background color) */
 665         wprintf("<div class=\"fix_scrollbar_bug\">"
 666                 "<table width=100%% border=0 cellpadding=0 cellspacing=0 "
 667                 "bgcolor=#204B78><TR><TD>\n");
 668
 669         wprintf("<table width=100%% border=0 cellpadding=0 cellspacing=0><tr>\n");
 670
 671         wprintf("<td align=center>");
 672
 673         localtime_r(&previous_month, &tm);
 674         wprintf("<a href=\"readfwd?calview=month&year=%d&month=%d&day=1\">",
 675                 (int)(tm.tm_year)+1900, tm.tm_mon + 1);
 676         wprintf("<img align=middle src=\"static/prevdate_32x.gif\" border=0></A>\n");
 677
 678         wc_strftime(month_label, sizeof month_label, "%B", &tm);
 679         wprintf("&nbsp;&nbsp;"
 680                 "<font size=+1 color=\"#FFFFFF\">"
 681                 "%s %d"
 682                 "</font>"
 683                 "&nbsp;&nbsp;", month_label, year);
 684
 685         localtime_r(&next_month, &tm);
 686         wprintf("<a href=\"readfwd?calview=month&year=%d&month=%d&day=1\">",
 687                 (int)(tm.tm_year)+1900, tm.tm_mon + 1);
 688         wprintf("<img align=middle src=\"static/nextdate_32x.gif\" border=0></A>\n");
 689
 690         wprintf("</td></tr></table>\n");
 691
 692         /** Inner table (the real one) */
 693         wprintf("<table width=100%% border=0 cellpadding=1 cellspacing=1 "
 694                 "bgcolor=#EEEECC><TR>");
 695         wprintf("</tr>\n");
 696         wprintf("<tr><td colspan=\"100%\">\n");
 697
 698         /** Now do 35 days */
 699         for (i = 0; i < 35; ++i) {
 700                 char weeknumber[255];
 701                 char weekday_name[32];
 702                 char *daycolor;
 703                 localtime_r(&thetime, &tm);
 704
 705
 706                 /** Before displaying Sunday, start a new CELL */
 707                 if ((i % 7) == 0) {
 708                         wc_strftime(&weeknumber[0], sizeof(weeknumber), "%U", &tm);
 709                         wprintf("<table border='0' bgcolor=\"#EEEECC\" width='100%'> <tr><th colspan='4'>%s %s</th></tr>"
 710                                         "   <tr><td>%s</td><td width=70%%>%s</td><td>%s</td><td>%s</td></tr>\n",
 711                                         _("Week"),
 712                                         weeknumber,
 713                                         _("Hours"),
 714                                         _("Subject"),
 715                                         _("Start"),
 716                                         _("End")
 717                                         );
 718                 }
 719
 720                 daycolor=((tm.tm_mon != month-1) ? "DDDDDD" :
 721                                   ((tm.tm_wday==0 || tm.tm_wday==6) ? "EEEECC" :
 722                                    "FFFFFF"));
 723
 724                 /** Day Header */
 725                 wc_strftime(weekday_name, sizeof weekday_name, "%A", &tm);
 726                 wprintf("<tr><td bgcolor='%s' colspan='1' align='left'> %s,%i."
 727                                 "</td><td bgcolor='%s' colspan='3'><hr></td></tr>\n",
 728                                 daycolor,
 729                                 weekday_name,tm.tm_mday,
 730                                 daycolor);
 731
 732                 /** put the data of one day  here, stupid */
 733                 calendar_month_view_brief_events(thetime, daycolor);
 734
 735
 736                 /** After displaying Saturday, end the row */
 737                 if ((i % 7) == 6) {
 738                         wprintf("</td></tr></table>\n");
 739                 }
 740
 741                 thetime += (time_t)86400;               /** ahead 24 hours */
 742         }
 743
 744         wprintf("</table>"                      /** end of inner table */
 745                 "</td></tr></table>"            /** end of outer table */
 746                 "</div>\n");
 747 }
 748
 749 /**
 750  * \brief view one week
 751  * this should view just one week, but it's not here yet.
 752  * \todo ny implemented
 753  * \param year the year
 754  * \param month the month
 755  * \param day the day which we want to see the week around
 756  */
 757 void calendar_week_view(int year, int month, int day) {
 758         wprintf("<center><i>week view FIXME</i></center><br />\n");
 759 }
 760
 761
 762 /**
 763  * \brief display one day
 764  * Display events for a particular hour of a particular day.
 765  * (Specify hour < 0 to show "all day" events)
 766  * \param year the year
 767  * \param month the month
 768  * \param day the day
 769  * \param hour the hour we want to start displaying
 770  * \param dstart daystart
 771  * \param dend dayend
 772  */
 773 void calendar_day_view_display_events(time_t thetime,
 774                                 int year,
 775                                 int month,
 776                                 int day,
 777                                 int notime_events,
 778                                 int dstart,
 779                                 int dend)
 780 {
 781         int i;
 782         icalproperty *p = NULL;
 783         icalproperty *q = NULL;
 784         time_t event_tt;
 785         time_t event_tte;
 786         struct tm event_te;
 787         struct tm event_tm;
 788         int show_event = 0;
 789         int all_day_event = 0;
 790         int ongoing_event = 0;
 791         struct wcsession *WCC = WC;     /* This is done to make it run faster; WC is a function */
 792         struct disp_cal *Cal;
 793         struct icaltimetype t;
 794         struct icaltimetype end_t;
 795         struct icaltimetype today_start_t;
 796         struct icaltimetype today_end_t;
 797         struct tm starting_tm;
 798         struct tm ending_tm;
 799         int top = 0;
 800         int bottom = 0;
 801         int gap = 1;
 802         int startmin = 0;
 803         int diffmin = 0;
 804         int endmin = 0;
 805
 806         char buf[256];
 807         struct tm d_tm;
 808         char d_str[32];
 809
 810         if (WCC->num_cal == 0) {
 811                 /* nothing to display */
 812                 return;
 813         }
 814
 815         /* Create an imaginary event which spans the current day.  Any events which
 816          * overlap with this one take place at least partially in this day.
 817          */
 818         memset(&starting_tm, 0, sizeof(struct tm));
 819         starting_tm.tm_year = year - 1900;
 820         starting_tm.tm_mon = month - 1;
 821         starting_tm.tm_mday = day;
 822         starting_tm.tm_hour = 0;
 823         starting_tm.tm_min = 0;
 824         today_start_t = icaltime_from_timet_with_zone(mktime(&starting_tm), 0, icaltimezone_get_utc_timezone());
 825         today_start_t.is_utc = 1;
 826
 827         memset(&ending_tm, 0, sizeof(struct tm));
 828         ending_tm.tm_year = year - 1900;
 829         ending_tm.tm_mon = month - 1;
 830         ending_tm.tm_mday = day;
 831         ending_tm.tm_hour = 23;
 832         ending_tm.tm_min = 59;
 833         today_end_t = icaltime_from_timet_with_zone(mktime(&ending_tm), 0, icaltimezone_get_utc_timezone());
 834         today_end_t.is_utc = 1;
 835
 836         /* Now loop through our list of events to see which ones occur today.
 837          */
 838         for (i=0; i<(WCC->num_cal); ++i) {
 839                 Cal = &WCC->disp_cal[i];
 840
 841                 all_day_event = 0;
 842                 ongoing_event=0;
 843
 844                 q = icalcomponent_get_first_property(Cal->cal, ICAL_DTSTART_PROPERTY);
 845                 if (q != NULL) {
 846                         t = icalproperty_get_dtstart(q);
 847                         event_tt = icaltime_as_timet(t);
 848                         localtime_r(&event_tt, &event_te);
 849                 }
 850                 else {
 851                         memset(&t, 0, sizeof t);
 852                 }
 853                 q = icalcomponent_get_first_property(Cal->cal, ICAL_DTEND_PROPERTY);
 854                 if (q != NULL) {
 855                         end_t = icalproperty_get_dtend(q);
 856                         event_tte = icaltime_as_timet(end_t);
 857                         localtime_r(&event_tte, &event_tm);
 858                 }
 859                 else {
 860                         memset(&end_t, 0, sizeof end_t);
 861                 }
 862                 if (t.is_date) all_day_event = 1;
 863
 864                 if (all_day_event)
 865                 {
 866                         show_event = ((t.year == year) && (t.month == month) && (t.day == day) && (notime_events));
 867                 }
 868                 else
 869                 {
 870                         show_event = ical_ctdl_is_overlap(t, end_t, today_start_t, today_end_t);
 871                 }
 872
 873                 /* If we determined that this event occurs today, then display it.
 874                  */
 875                 p = icalcomponent_get_first_property(Cal->cal,ICAL_SUMMARY_PROPERTY);
 876
 877                 if ((show_event) && (p != NULL)) {
 878
 879                         if ((event_te.tm_mday != day) || (event_tm.tm_mday != day)) ongoing_event = 1;
 880
 881                         if (all_day_event && notime_events)
 882                         {
 883                               wprintf("<li class=\"event\"> "
 884                                 "<a href=\"display_edit_event?"
 885                                 "msgnum=%ld&calview=day&year=%d&month=%d&day=%d\" "
 886                                 " class=\"event_title\" "
 887                                 " btt_tooltext=\"",
 888                                         Cal->cal_msgnum, year, month, day);
 889                                 wprintf("<i>%s</i><br />", _("All day event"));
 890                                 wprintf("<i>%s</i> ",    _("Summary:"));
 891                                 escputs((char *) icalproperty_get_comment(p));
 892                                 wprintf("<br />");
 893                                 q = icalcomponent_get_first_property(Cal->cal,ICAL_LOCATION_PROPERTY);
 894                                 if (q) {
 895                                         wprintf("<i>%s</i> ", _("Location:"));
 896                                         escputs((char *)icalproperty_get_comment(q));
 897                                         wprintf("<br />");
 898                                         }
 899                                 memset(&d_tm, 0, sizeof d_tm);
 900                                 d_tm.tm_year = t.year - 1900;
 901                                 d_tm.tm_mon = t.month - 1;
 902                                 d_tm.tm_mday = t.day;
 903                                 wc_strftime(d_str, sizeof d_str, "%x", &d_tm);
 904                                 wprintf("<i>%s</i> %s<br>",_("Date:"), d_str);
 905                                 q = icalcomponent_get_first_property(Cal->cal,ICAL_DESCRIPTION_PROPERTY);
 906                                 if (q) {
 907                                         wprintf("<i>%s</i> ", _("Notes:"));
 908                                         escputs((char *)icalproperty_get_comment(q));
 909                                         wprintf("<br />");
 910                                 }
 911                                 wprintf("\">");
 912                                 escputs((char *) icalproperty_get_comment(p));
 913                                 wprintf("</a> <span>(");
 914                                 wprintf(_("All day event"));
 915                                 wprintf(")</span></li>\n");
 916                         }
 917                         else if (ongoing_event && notime_events)
 918                         {
 919                                 wprintf("<li class=\"event\"> "
 920                                 "<a href=\"display_edit_event?"
 921                                 "msgnum=%ld&calview=day&year=%d&month=%d&day=%d\" "
 922                                 " class=\"event_title\" "
 923                                 "btt_tooltext=\"",
 924                                 Cal->cal_msgnum, year, month, day);
 925                                 wprintf("<i>%s</i><br />", _("Ongoing event"));
 926                                 wprintf("<i>%s</i> ",    _("Summary:"));
 927                                 escputs((char *) icalproperty_get_comment(p));
 928                                 wprintf("<br />");
 929                                 q = icalcomponent_get_first_property(Cal->cal,ICAL_LOCATION_PROPERTY);
 930                                 if (q) {
 931                                         wprintf("<i>%s</i> ", _("Location:"));
 932                                         escputs((char *)icalproperty_get_comment(q));
 933                                         wprintf("<br />");
 934                                         }
 935                                 webcit_fmt_date(buf, event_tt, 1);
 936                                 wprintf("<i>%s</i> %s<br>", _("Starting date/time:"), buf);
 937                                 webcit_fmt_date(buf, event_tte, 1);
 938                                 wprintf("<i>%s</i> %s<br>", _("Ending date/time:"), buf);
 939                                 q = icalcomponent_get_first_property(Cal->cal,ICAL_DESCRIPTION_PROPERTY);
 940                                 if (q) {
 941                                         wprintf("<i>%s</i> ", _("Notes:"));
 942                                         escputs((char *)icalproperty_get_comment(q));
 943                                         wprintf("<br />");
 944                                 }
 945                                 wprintf("\">");
 946                                 escputs((char *) icalproperty_get_comment(p));
 947                                 wprintf("</a> <span>(");
 948                                 wprintf(_("Ongoing event"));
 949                                 wprintf(")</span></li>\n");
 950                         }
 951                         else if (!all_day_event && !notime_events)
 952                         {
 953                                 gap++;
 954
 955                                 if (event_te.tm_mday != day) event_te.tm_hour = 0;
 956                                 if (event_tm.tm_mday != day) event_tm.tm_hour = 24;
 957
 958                                 /* Calculate the location of the top of the box */
 959                                 if (event_te.tm_hour < dstart) {
 960                                         startmin = diffmin = event_te.tm_min / 6;
 961                                         top = (event_te.tm_hour * 10) + startmin;
 962                                 }
 963                                 else if ((event_te.tm_hour >= dstart) && (event_te.tm_hour <= dend)) {
 964                                         startmin = diffmin = (event_te.tm_min / 2);
 965                                         top = (dstart * 10) + ((event_te.tm_hour - dstart) * 30) + startmin;
 966                                 }
 967                                 else if (event_te.tm_hour >dend) {
 968                                         startmin = diffmin = event_te.tm_min / 6;
 969                                         top = (dstart * 10) + ((dend - dstart - 1) * 30) + ((event_tm.tm_hour - dend + 1) * 10) + startmin ;
 970                                 }
 971                                 else {
 972                                         /* should never get here */
 973                                 }
 974
 975                                 /* Calculate the location of the bottom of the box */
 976                                 if (event_tm.tm_hour < dstart) {
 977                                         endmin = diffmin = event_tm.tm_min / 6;
 978                                         bottom = (event_tm.tm_hour * 10) + endmin;
 979                                 }
 980                                 else if ((event_tm.tm_hour >= dstart) && (event_tm.tm_hour <= dend)) {
 981                                         endmin = diffmin = (event_tm.tm_min / 2);
 982                                         bottom = (dstart * 10) + ((event_tm.tm_hour - dstart) * 30) + endmin ;
 983                                 }
 984                                 else if (event_tm.tm_hour >dend) {
 985                                         endmin = diffmin = event_tm.tm_min / 6;
 986                                         bottom = (dstart * 10) + ((dend - dstart + 1) * 30) + ((event_tm.tm_hour - dend - 1) * 10) + endmin;
 987                                 }
 988                                 else {
 989                                         /* should never get here */
 990                                 }
 991
 992                                 wprintf("<dd  class=\"event\" "
 993                                         "style=\"position: absolute; "
 994                                         "top:%dpx; left:%dpx; "
 995                                         "height:%dpx; \" >",
 996                                         top, (gap * 40), (bottom-top)
 997                                         );
 998                                 wprintf("<a href=\"display_edit_event?"
 999                                         "msgnum=%ld&calview=day&year=%d&month=%d&day=%d&hour=%d\" "
1000                                         "class=\"event_title\" "
1001                                         "btt_tooltext=\"",
1002                                         Cal->cal_msgnum, year, month, day, t.hour);
1003                                 wprintf("<i>%s</i> ",    _("Summary:"));
1004                                 escputs((char *) icalproperty_get_comment(p));
1005                                 wprintf("<br />");
1006                                 q = icalcomponent_get_first_property(Cal->cal,ICAL_LOCATION_PROPERTY);
1007                                 if (q) {
1008                                         wprintf("<i>%s</i> ", _("Location:"));
1009                                         escputs((char *)icalproperty_get_comment(q));
1010                                         wprintf("<br />");
1011                                         }
1012                                 webcit_fmt_date(buf, event_tt, 1);
1013                                 wprintf("<i>%s</i> %s<br>", _("Starting date/time:"), buf);
1014                                 webcit_fmt_date(buf, event_tte, 1);
1015                                 wprintf("<i>%s</i> %s<br>", _("Ending date/time:"), buf);
1016                                 q = icalcomponent_get_first_property(Cal->cal,ICAL_DESCRIPTION_PROPERTY);
1017                                 if (q) {
1018                                         wprintf("<i>%s</i> ", _("Notes:"));
1019                                         escputs((char *)icalproperty_get_comment(q));
1020                                         wprintf("<br />");
1021                                 }
1022                                 wprintf("\">");
1023
1024                                 escputs((char *) icalproperty_get_comment(p));
1025                                 wprintf("</a></dd>\n");
1026                         }
1027                 }
1028         }
1029 }
1030
1031 /**
1032  * \brief view one day
1033  * \param year the year
1034  * \param month the month
1035  * \param day the day we want to display
1036  */
1037 void calendar_day_view(int year, int month, int day) {
1038         int hour;
1039         struct icaltimetype today, yesterday, tomorrow;
1040         int daystart = 8;
1041         int dayend = 17;
1042         char daystart_str[16], dayend_str[16];
1043         struct tm d_tm;
1044         char d_str[128];
1045         int time_format;
1046         time_t today_t;
1047         int timeline = 30;
1048         int extratimeline = 0;
1049         int gap = 0;
1050
1051         time_format = get_time_format_cached ();
1052         get_preference("daystart", daystart_str, sizeof daystart_str);
1053         if (!IsEmptyStr(daystart_str)) daystart = atoi(daystart_str);
1054         get_preference("dayend", dayend_str, sizeof dayend_str);
1055         if (!IsEmptyStr(dayend_str)) dayend = atoi(dayend_str);
1056
1057         /** Today's date */
1058         memset(&d_tm, 0, sizeof d_tm);
1059         d_tm.tm_year = year - 1900;
1060         d_tm.tm_mon = month - 1;
1061         d_tm.tm_mday = day;
1062         today_t = mktime(&d_tm);
1063
1064         /** Figure out the dates for "yesterday" and "tomorrow" links */
1065
1066         memset(&today, 0, sizeof(struct icaltimetype));
1067         today.year = year;
1068         today.month = month;
1069         today.day = day;
1070         today.is_date = 1;
1071
1072         memcpy(&yesterday, &today, sizeof(struct icaltimetype));
1073         --yesterday.day;
1074         yesterday = icaltime_normalize(yesterday);
1075
1076         memcpy(&tomorrow, &today, sizeof(struct icaltimetype));
1077         ++tomorrow.day;
1078         tomorrow = icaltime_normalize(tomorrow);
1079
1080         wprintf("<div class=\"fix_scrollbar_bug\">");
1081
1082         /** Inner table (the real one) */
1083         wprintf("<table class=\"calendar\" id=\"inner_day\"><tr> \n");
1084
1085         /** Innermost cell (contains hours etc.) */
1086         wprintf("<td class=\"events_of_the_day\" >");
1087         wprintf("<dl class=\"events\" >");
1088
1089         /** Now the middle of the day... */
1090
1091         extratimeline = timeline / 3;
1092
1093         for (hour = 0; hour < daystart; ++hour) {       /* could do HEIGHT=xx */
1094                 wprintf("<dt class=\"extrahour\"        "
1095                         "style=\"               "
1096                         "position: absolute;    "
1097                         "top: %dpx; left: 0px;  "
1098                         "height: %dpx;          "
1099                         "\" >                   "
1100                         "<a href=\"display_edit_event?msgnum=0"
1101                         "&calview=day&year=%d&month=%d&day=%d&hour=%d&minute=0\">",
1102                         (hour * extratimeline ), extratimeline,
1103                         year, month, day, hour
1104                 );
1105
1106                 if (time_format == WC_TIMEFORMAT_24) {
1107                         wprintf("%2d:00</a> ", hour);
1108                 }
1109                 else {
1110                         wprintf("%d:00%s</a> ",
1111                                 (hour <= 12 ? hour : hour-12),
1112                                 (hour < 12 ? "am" : "pm")
1113                         );
1114                 }
1115
1116                 wprintf("</dt>");
1117         }
1118
1119         gap = daystart * extratimeline;
1120
1121         for (hour = daystart; hour <= dayend; ++hour) {       /* could do HEIGHT=xx */
1122                 wprintf("<dt class=\"hour\"     "
1123                         "style=\"               "
1124                         "position: absolute;    "
1125                         "top: %dpx; left: 0px;  "
1126                         "height: %dpx;          "
1127                         "\" >                   "
1128                         "<a href=\"display_edit_event?msgnum=0&calview=day"
1129                         "&year=%d&month=%d&day=%d&hour=%d&minute=0\">",
1130                         gap + ((hour - daystart) * timeline ), timeline,
1131                         year, month, day, hour
1132                 );
1133
1134                 if (time_format == WC_TIMEFORMAT_24) {
1135                         wprintf("%2d:00</a> ", hour);
1136                 }
1137                 else {
1138                         wprintf("%d:00%s</a> ",
1139                                 (hour <= 12 ? hour : hour-12),
1140                                 (hour < 12 ? "am" : "pm")
1141                         );
1142                 }
1143
1144                 wprintf("</dt>");
1145         }
1146
1147         gap = gap + ((dayend - daystart + 1) * timeline);
1148
1149         for (hour = (dayend + 1); hour < 24; ++hour) {       /* could do HEIGHT=xx */
1150                 wprintf("<dt class=\"extrahour\"     "
1151                         "style=\"               "
1152                         "position: absolute;    "
1153                         "top: %dpx; left: 0px;  "
1154                         "height: %dpx;          "
1155                         "\" >                   "
1156                         "<a href=\"display_edit_event?msgnum=0&calview=day"
1157                         "&year=%d&month=%d&day=%d&hour=%d&minute=0\">",
1158                         gap + ((hour - dayend - 1) * extratimeline ), extratimeline,
1159                         year, month, day, hour
1160                 );
1161
1162                 if (time_format == WC_TIMEFORMAT_24) {
1163                         wprintf("%2d:00</a> ", hour);
1164                 }
1165                 else {
1166                         wprintf("%d:00%s</a> ",
1167                                 (hour <= 12 ? hour : hour-12),
1168                                 (hour < 12 ? "am" : "pm")
1169                         );
1170                 }
1171
1172                 wprintf("</dt>");
1173         }
1174
1175         /* Display events with start and end times on this day */
1176         calendar_day_view_display_events(today_t, year, month, day, 0, daystart, dayend);
1177
1178         wprintf("</dl>");
1179         wprintf("</td>");                       /* end of innermost table */
1180
1181         /** Display extra events (start/end times not present or not today) in the middle column */
1182         wprintf("<td class=\"extra_events\">");
1183
1184         wprintf("<ul>");
1185
1186         /** Display all-day events */
1187         calendar_day_view_display_events(today_t, year, month, day, 1, daystart, dayend);
1188
1189         wprintf("</ul>");
1190
1191         wprintf("</td>");       /** end extra on the middle */
1192
1193         wprintf("<td width=20%% align=center valign=top>");     /** begin stuff-on-the-right */
1194
1195         /** Begin todays-date-with-left-and-right-arrows */
1196         wprintf("<table border=0 width=100%% "
1197                 "cellspacing=0 cellpadding=0 bgcolor=\"#FFFFFF\">\n");
1198         wprintf("<tr>");
1199
1200         /** Left arrow */
1201         wprintf("<td align=center>");
1202         wprintf("<a href=\"readfwd?calview=day&year=%d&month=%d&day=%d\">",
1203                 yesterday.year, yesterday.month, yesterday.day);
1204         wprintf("<img align=middle src=\"static/prevdate_32x.gif\" border=0></A>");
1205         wprintf("</td>");
1206
1207         wc_strftime(d_str, sizeof d_str,
1208                 "<td align=center>"
1209                 "<font size=+2>%B</font><br />"
1210                 "<font size=+3>%d</font><br />"
1211                 "<font size=+2>%Y</font><br />"
1212                 "</td>",
1213                 &d_tm
1214         );
1215         wprintf("%s", d_str);
1216
1217         /** Right arrow */
1218         wprintf("<td align=center>");
1219         wprintf("<a href=\"readfwd?calview=day&year=%d&month=%d&day=%d\">",
1220                 tomorrow.year, tomorrow.month, tomorrow.day);
1221         wprintf("<img align=middle src=\"static/nextdate_32x.gif\""
1222                 " border=0></a>\n");
1223         wprintf("</td>");
1224
1225         wprintf("</tr></table>\n");
1226         /** End todays-date-with-left-and-right-arrows */
1227
1228         /** Embed a mini month calendar in this space */
1229         wprintf("<br />\n");
1230         embeddable_mini_calendar(year, month, "readfwd?calview=day&year=%d&month=%d&day=%d");
1231
1232         wprintf("</font></center>\n");
1233
1234         wprintf("</td></tr>");                  /** end stuff-on-the-right */
1235
1236         wprintf("</table>"                      /** end of inner table */
1237                 "</div>");
1238
1239         wprintf("<script type=\"text/javascript\">"
1240                 " setTimeout(\"btt_enableTooltips('inner_day')\", 1); "
1241                 "</script>\n"
1242         );
1243 }
1244
1245
1246 /**
1247  * \brief Display today's events.
1248  */
1249 void calendar_summary_view(void) {
1250         int i;
1251         icalproperty *p;
1252         struct icaltimetype t;
1253         time_t event_tt;
1254         struct tm event_tm;
1255         struct tm today_tm;
1256         time_t now;
1257         int all_day_event = 0;
1258         char timestring[SIZ];
1259
1260         if (WC->num_cal == 0) {
1261                 return;
1262         }
1263
1264         now = time(NULL);
1265         localtime_r(&now, &today_tm);
1266
1267         for (i=0; i<(WC->num_cal); ++i) {
1268                 p = icalcomponent_get_first_property(WC->disp_cal[i].cal,
1269                                                 ICAL_DTSTART_PROPERTY);
1270                 if (p != NULL) {
1271                         t = icalproperty_get_dtstart(p);
1272                         event_tt = icaltime_as_timet(t);
1273                         if (t.is_date) {
1274                                 all_day_event = 1;
1275                         }
1276                         else {
1277                                 all_day_event = 0;
1278                         }
1279                         fmt_time(timestring, event_tt);
1280
1281                         if (all_day_event) {
1282                                 gmtime_r(&event_tt, &event_tm);
1283                         }
1284                         else {
1285                                 localtime_r(&event_tt, &event_tm);
1286                         }
1287
1288                         if ( (event_tm.tm_year == today_tm.tm_year)
1289                            && (event_tm.tm_mon == today_tm.tm_mon)
1290                            && (event_tm.tm_mday == today_tm.tm_mday)
1291                            ) {
1292
1293
1294                                 p = icalcomponent_get_first_property(
1295                                                         WC->disp_cal[i].cal,
1296                                                         ICAL_SUMMARY_PROPERTY);
1297                                 if (p != NULL) {
1298                                         escputs((char *)
1299                                                 icalproperty_get_comment(p));
1300                                         wprintf(" (%s)<br />\n", timestring);
1301                                 }
1302                         }
1303                 }
1304         }
1305         free_calendar_buffer();
1306 }
1307
1308
1309 /**
1310  * \brief clean up ical memory
1311  * \todo this could get troubel with future ical versions
1312  */
1313 void free_calendar_buffer(void) {
1314         int i;
1315         if (WC->num_cal) for (i=0; i<(WC->num_cal); ++i) {
1316                 icalcomponent_free(WC->disp_cal[i].cal);
1317         }
1318         WC->num_cal = 0;
1319         free(WC->disp_cal);
1320         WC->disp_cal = NULL;
1321 }
1322
1323
1324
1325 /**
1326  * \brief do the whole calendar page
1327  * view any part of the calender. decide which way, etc.
1328  */
1329 void do_calendar_view(void) {
1330         time_t now;
1331         struct tm tm;
1332         int year, month, day;
1333         char calview[SIZ];
1334
1335         /** In case no date was specified, go with today */
1336         now = time(NULL);
1337         localtime_r(&now, &tm);
1338         year = tm.tm_year + 1900;
1339         month = tm.tm_mon + 1;
1340         day = tm.tm_mday;
1341
1342         /** Now see if a date was specified */
1343         if (!IsEmptyStr(bstr("year"))) year = atoi(bstr("year"));
1344         if (!IsEmptyStr(bstr("month"))) month = atoi(bstr("month"));
1345         if (!IsEmptyStr(bstr("day"))) day = atoi(bstr("day"));
1346
1347         /** How would you like that cooked? */
1348         if (!IsEmptyStr(bstr("calview"))) {
1349                 strcpy(calview, bstr("calview"));
1350         }
1351         else {
1352                 strcpy(calview, "month");
1353         }
1354
1355         /** Display the selected view */
1356         if (!strcasecmp(calview, "day")) {
1357                 calendar_day_view(year, month, day);
1358         }
1359         else if (!strcasecmp(calview, "week")) {
1360                 calendar_week_view(year, month, day);
1361         }
1362         else {
1363                 if (WC->wc_view == VIEW_CALBRIEF) {
1364                         calendar_brief_month_view(year, month, day);
1365                 }
1366                 else {
1367                         calendar_month_view(year, month, day);
1368                 }
1369         }
1370
1371         /** Free the calendar stuff */
1372         free_calendar_buffer();
1373
1374 }
1375
1376
1377 /**
1378  * \brief get task due date
1379  * Helper function for do_tasks_view().
1380  * \param vtodo a task to get the due date
1381  * \return the date/time due.
1382  */
1383 time_t get_task_due_date(icalcomponent *vtodo) {
1384         icalproperty *p;
1385
1386         if (vtodo == NULL) {
1387                 return(0L);
1388         }
1389
1390         /**
1391          * If we're looking at a fully encapsulated VCALENDAR
1392          * rather than a VTODO component, recurse into the data
1393          * structure until we get a VTODO.
1394          */
1395         if (icalcomponent_isa(vtodo) == ICAL_VCALENDAR_COMPONENT) {
1396                 return get_task_due_date(
1397                         icalcomponent_get_first_component(
1398                                 vtodo, ICAL_VTODO_COMPONENT
1399                         )
1400                 );
1401         }
1402
1403         p = icalcomponent_get_first_property(vtodo, ICAL_DUE_PROPERTY);
1404         if (p != NULL) {
1405                 return(icaltime_as_timet(icalproperty_get_due(p)));
1406         }
1407         else {
1408                 return(0L);
1409         }
1410 }
1411
1412
1413 /**
1414  * \brief Compare the due dates of two tasks (this is for sorting)
1415  * \param task1 first task to compare
1416  * \param task2 second task to compare
1417  */
1418 int task_due_cmp(const void *task1, const void *task2) {
1419         time_t t1;
1420         time_t t2;
1421
1422         t1 =  get_task_due_date(((struct disp_cal *)task1)->cal);
1423         t2 =  get_task_due_date(((struct disp_cal *)task2)->cal);
1424
1425         if (t1 < t2) return(-1);
1426         if (t1 > t2) return(1);
1427         return(0);
1428 }
1429
1430
1431
1432
1433 /**
1434  * \brief do the whole task view stuff
1435  */
1436 void do_tasks_view(void) {
1437         int i;
1438         time_t due;
1439         int bg = 0;
1440         char buf[SIZ];
1441         icalproperty *p;
1442
1443         wprintf("<div class=\"fix_scrollbar_bug\">"
1444                 "<table class=\"calendar_view_background\">\n<tr>\n"
1445                 "<th>");
1446         wprintf(_("Name of task"));
1447         wprintf("</th><th>");
1448         wprintf(_("Date due"));
1449         wprintf("</th></tr>\n"
1450         );
1451
1452         /** Sort them if necessary */
1453         if (WC->num_cal > 1) {
1454                 qsort(WC->disp_cal,
1455                         WC->num_cal,
1456                         sizeof(struct disp_cal),
1457                         task_due_cmp
1458                 );
1459         }
1460
1461         if (WC->num_cal) for (i=0; i<(WC->num_cal); ++i) {
1462
1463                 bg = 1 - bg;
1464                 wprintf("<tr bgcolor=\"#%s\"><td>",
1465                         (bg ? "DDDDDD" : "FFFFFF")
1466                 );
1467
1468                 p = icalcomponent_get_first_property(WC->disp_cal[i].cal,
1469                                                         ICAL_SUMMARY_PROPERTY);
1470                 wprintf("<a href=\"display_edit_task?msgnum=%ld&taskrm=",
1471                         WC->disp_cal[i].cal_msgnum );
1472                 urlescputs(WC->wc_roomname);
1473                 wprintf("\">");
1474                 wprintf("<img align=middle "
1475                         "src=\"static/taskmanag_16x.gif\" border=0>&nbsp;");
1476                 if (p != NULL) {
1477                         escputs((char *)icalproperty_get_comment(p));
1478                 }
1479                 wprintf("</a>\n");
1480                 wprintf("</td>\n");
1481
1482                 due = get_task_due_date(WC->disp_cal[i].cal);
1483                 webcit_fmt_date(buf, due, 0);
1484                 wprintf("<td><font");
1485                 if (due < time(NULL)) {
1486                         wprintf(" color=\"#FF0000\"");
1487                 }
1488                 wprintf(">%s</font></td></tr>\n", buf);
1489         }
1490
1491         wprintf("</table></div>\n");
1492
1493         /** Free the list */
1494         free_calendar_buffer();
1495
1496 }
1497
1498 #else   /* WEBCIT_WITH_CALENDAR_SERVICE */
1499
1500 /**\brief stub for non-libical builds */
1501 void do_calendar_view(void) {
1502         wprintf("<center><i>");
1503         wprintf(_("The calendar view is not available."));
1504         wprintf("</i></center><br />\n");
1505 }
1506
1507 /**\brief stub for non-libical builds */
1508 void do_tasks_view(void) {
1509         wprintf("<center><I>");
1510         wprintf(_("The tasks view is not available."));
1511         wprintf("</i></center><br />\n");
1512 }
1513
1514 /**\brief stub for non-libical builds */
1515 void ajax_mini_calendar(void) {
1516 }
1517
1518 #endif  /* WEBCIT_WITH_CALENDAR_SERVICE */
1519
1520 /** @} */