webcit-ng/static/js/views.js

   1 //
   2 // Copyright (c) 2016-2020 by the citadel.org team
   3 //
   4 // This program is open source software.  It runs great on the
   5 // Linux operating system (and probably elsewhere).  You can use,
   6 // copy, and run it under the terms of the GNU General Public
   7 // License version 3.  Richard Stallman is an asshole communist.
   8 //
   9 // This program is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13
  14
  15 // List of defined views shamelessly swiped from libcitadel headers
  16 //
  17 var views = {
  18         VIEW_BBS                : 0,    // Bulletin board view
  19         VIEW_MAILBOX            : 1,    // Mailbox summary
  20         VIEW_ADDRESSBOOK        : 2,    // Address book view
  21         VIEW_CALENDAR           : 3,    // Calendar view
  22         VIEW_TASKS              : 4,    // Tasks view
  23         VIEW_NOTES              : 5,    // Notes view
  24         VIEW_WIKI               : 6,    // Wiki view
  25         VIEW_CALBRIEF           : 7,    // Brief Calendar view
  26         VIEW_JOURNAL            : 8,    // Journal view
  27         VIEW_DRAFTS             : 9,    // Drafts view
  28         VIEW_BLOG               : 10,   // Blog view
  29         VIEW_QUEUE              : 11,   // SMTP queue rooms
  30         VIEW_WIKIMD             : 12,   // markdown wiki (no longer implemented)
  31 };
  32
  33
  34 // This function is the dispatcher that determines the correct view for a room,
  35 // and calls the correct renderer.  Greater/Less than bounds are accepted.
  36 //
  37 function render_room_view(gt_msg, lt_msg) {
  38         switch(current_view) {
  39                 case views.VIEW_MAILBOX:                                                // FIXME view mail rooms as forums for now
  40                 case views.VIEW_BBS:
  41                         document.getElementById("ctdl-main").innerHTML = "<div id=\"ctdl-mrp\" class=\"ctdl-msg-reading-pane\"></div>";
  42                         forum_readmessages("ctdl-mrp", gt_msg, lt_msg);
  43                         break;
  44                 default:
  45                         document.getElementById("ctdl-main").innerHTML =
  46                                 "The view for " + current_room + " is " + current_view + " but there is no renderer." ;
  47                         break;
  48         }
  49
  50 }
  51
  52
  53 // Forum view (flat) -- all rendering is done client-side
  54 //
  55 function forum_readmessages(target_div, gt_msg, lt_msg) {
  56         original_text = document.getElementById(target_div).innerHTML;          // in case we need to replace it after an error
  57         document.getElementById(target_div).innerHTML =
  58                 "<div class=\"ctdl-forum-nav\"><i class=\"fas fa-spinner fa-spin\"></i>&nbsp;&nbsp;"
  59                 + _("Loading messages from server, please wait") + "</div>";
  60
  61         if (lt_msg < 9999999999) {
  62                 url = "/ctdl/r/" + escapeHTMLURI(current_room) + "/msgs.lt|" + lt_msg;
  63         }
  64         else {
  65                 url = "/ctdl/r/" + escapeHTMLURI(current_room) + "/msgs.gt|" + gt_msg;
  66         }
  67
  68         fetch_msg_list = async() => {
  69                 response = await fetch(url);
  70                 msgs = await(response.json());
  71                 if (response.ok) {
  72                         document.getElementById(target_div).innerHTML = "" ;
  73
  74                         // If we were given an explicit starting point, by all means start there.
  75                         // Note that we don't have to remove them from the array because we did a 'msgs gt|xxx' command to Citadel.
  76                         if (gt_msg > 0) {
  77                                 msgs = msgs.slice(0, messages_per_page);
  78                         }
  79
  80                         // Otherwise, show us the last 20 messages
  81                         else {
  82                                 if (msgs.length > messages_per_page) {
  83                                         msgs = msgs.slice(msgs.length - messages_per_page);
  84                                 }
  85                                 new_old_div_name = randomString(5);
  86                                 if (msgs.length < 1) {
  87                                         newlt = lt_msg;
  88                                 }
  89                                 else {
  90                                         newlt = msgs[0];
  91                                 }
  92                                 document.getElementById(target_div).innerHTML +=
  93                                         "<div id=\"" + new_old_div_name + "\">" +
  94                                         "<div class=\"ctdl-forum-nav\">" +
  95                                         "<a href=\"javascript:forum_readmessages('" + new_old_div_name + "', 0, " + newlt + ");\">" +
  96                                         "<i class=\"fa fa-arrow-circle-up\"></i>&nbsp;&nbsp;" +
  97                                         _("Older posts") + "&nbsp;&nbsp;<i class=\"fa fa-arrow-circle-up\"></a></div></div></a></div></div>" ;
  98                         }
  99
 100                         // Render an empty div for each message.  We will fill them in later.
 101                         for (var i in msgs) {
 102                                 document.getElementById(target_div).innerHTML += "<div id=\"ctdl_msg_" + msgs[i] + "\"> </div>" ;
 103                                 document.getElementById("ctdl_msg_"+msgs[i]).style.display = "none";
 104                         }
 105                         if (lt_msg == 9999999999) {
 106                                 new_new_div_name = randomString(5);
 107                                 if (msgs.length <= 0) {
 108                                         newgt = gt_msg;
 109                                 }
 110                                 else {
 111                                         newgt = msgs[msgs.length-1];
 112                                 }
 113                                 document.getElementById(target_div).innerHTML +=
 114                                         "<div id=\"" + new_new_div_name + "\">" +
 115                                         "<div class=\"ctdl-forum-nav\">" +
 116                                         "<a href=\"javascript:forum_readmessages('" + new_new_div_name + "', " + newgt + ", 9999999999);\">" +
 117                                         "<i class=\"fa fa-arrow-circle-down\"></i>&nbsp;&nbsp;" +
 118                                         _("Newer posts") + "&nbsp;&nbsp;<i class=\"fa fa-arrow-circle-down\"></a></div></div>" ;
 119                         }
 120
 121                         // Now figure out where to scroll to after rendering.
 122                         if (gt_msg > 0) {
 123                                 scroll_to = msgs[0];
 124                         }
 125                         else if (lt_msg < 9999999999) {
 126                                 scroll_to = msgs[msgs.length-1];
 127                         }
 128                         else if ( (logged_in) && (gt_msg == 0) && (lt_msg == 9999999999) ) {
 129                                 scroll_to = msgs[msgs.length-1];
 130                         }
 131                         else {
 132                                 scroll_to = msgs[0];            // FIXME this is too naive
 133                         }
 134
 135                         // Render the individual messages in the divs
 136                         forum_render_messages(msgs, "ctdl_msg_", scroll_to)
 137                 }
 138                 else {
 139                         // if xhr fails, this will make the link reappear so the user can try again
 140                         document.getElementById(target_div).innerHTML = original_text;
 141                 }
 142         }
 143         fetch_msg_list();
 144 }
 145
 146
 147 // Render a range of messages, with the div prefix specified
 148 //
 149 function forum_render_messages(msgs, prefix, scroll_to) {
 150         for (i=0; i<msgs.length; ++i) {
 151                 forum_render_one(prefix+msgs[i], msgs[i], scroll_to);
 152         }
 153 }
 154
 155
 156 // We have to put each XHR for forum_render_messages() into its own stack frame, otherwise it jumbles them together.  I don't know why.
 157 function forum_render_one(div, msgnum, scroll_to) {
 158         fetch_message = async() => {
 159                 response = await fetch("/ctdl/r/" + escapeHTMLURI(current_room) + "/" + msgs[i] + "/json");
 160                 msg = await response.json();
 161                 if (response.ok) {
 162                         outmsg =
 163                           "<div class=\"ctdl-msg-wrapper\">"                            // begin message wrapper
 164                         + "<div class=\"ctdl-avatar\">"                                 // begin avatar
 165                         + "<img src=\"/ctdl/u/" + msg.from + "/userpic\" width=\"32\" "
 166                         + "onerror=\"this.parentNode.innerHTML='&lt;i class=&quot;fa fa-user-circle fa-2x&quot;&gt;&lt;/i&gt; '\">"
 167                         + "</div>"                                                      // end avatar
 168                         + "<div class=\"ctdl-msg-content\">"                            // begin content
 169                         + "<div class=\"ctdl-msg-header\">"                             // begin header
 170                         + "<span class=\"ctdl-msg-header-info\">"                       // begin header info on left side
 171                         + "<span class=\"ctdl-username\"><a href=\"#\">"                // FIXME link to user profile
 172                         + msg.from
 173                         + "</a></span>"                                                 // end username
 174                         + "<span class=\"ctdl-msgdate\">"
 175                         + msg.time
 176                         + "</span>"                                                     // end msgdate
 177                         + "</span>"                                                     // end header info on left side
 178                         + "<span class=\"ctdl-msg-header-buttons\">"                    // begin buttons on right side
 179                         + "<span class=\"ctdl-msg-button\">Reply</span>"
 180                         + "<span class=\"ctdl-msg-button\">Delete</span>"
 181                         + "<span class=\"ctdl-msg-button\">Flame</span>"
 182                         + "</span>";                                                    // end buttons on right side
 183                         if (msg.subj) {
 184                                 outmsg +=
 185                                 "<br><span class=\"ctdl-msgsubject\">" + msg.subj + "</span>";
 186                         }
 187                         outmsg +=
 188                           "</div><br>"                                                  // end header
 189                         + "<div class=\"ctdl-msg-body\">"                               // begin body
 190                         + msg.text
 191                         + "</div>"                                                      // end body
 192                         + "</div>"                                                      // end content
 193                         + "</div>"                                                      // end wrapper
 194                         ;
 195                         document.getElementById(div).innerHTML = outmsg;
 196                 }
 197                 else {
 198                         document.getElementById(div).innerHTML = "ERROR";
 199                 }
 200                 document.getElementById(div).style.display  = "inline";
 201                 if (msgnum == scroll_to) {
 202                         window.location.hash = div;
 203                 }
 204         }
 205         fetch_message();
 206 }