webcit-ng/static/js/main.js

   1 // Copyright (c) 2016-2022 by the citadel.org team
   2 //
   3 // This program is open source software.  It runs great on the
   4 // Linux operating system (and probably elsewhere).  You can use,
   5 // copy, and run it under the terms of the GNU General Public
   6 // License version 3.  Richard Stallman is an asshole communist.
   7 //
   8 // This program is distributed in the hope that it will be useful,
   9 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  10 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  11 // GNU General Public License for more details.
  12
  13
  14 var current_room = "_BASEROOM_";
  15 var new_messages = 0;
  16 var total_messages = 0;
  17 var default_view = 0;
  18 var current_view = 0;
  19 var logged_in = 0;
  20 var current_user = _("Not logged in.");
  21 var serv_info;
  22 var last_seen = 0;
  23 var messages_per_page = 20;
  24 var march_list = [] ;
  25
  26
  27 // Placeholder for when we add i18n later
  28 function _(x) {
  29         return x;
  30 }
  31
  32
  33 // This is called at the very beginning of the main page load.
  34 ctdl_startup = async() => {
  35         response = await fetch("/ctdl/c/info");
  36
  37         if (response.ok) {
  38                 serv_info = await(response.json());
  39                 if (serv_info.serv_rev_level < 905) {
  40                         alert(_("Citadel server is too old, some functions may not work"));
  41                 }
  42
  43                 update_banner();
  44
  45                 // What do we do upon landing?
  46
  47                 if ( (serv_info.serv_supports_guest) || (logged_in) ) {                 // If the Lobby is visible,
  48                         gotonext(1);                                                    // go there.
  49                 }
  50                 else {                                                                  // Otherwise,
  51                         display_login_screen("");                                       // display the login modal.
  52                 }
  53         }
  54         else {
  55                 document.getElementById("ctdl-main").innerHTML =
  56                         "<div class=\"w3-panel w3-red\"><p>"
  57                         + _("This program was unable to connect or stay connected to the Citadel server.  Please report this problem to your system administrator.")
  58                         + "</div>";
  59         }
  60 }
  61
  62
  63 // Display a room list in the main div.
  64
  65 // Update the "banner" div with all relevant info.
  66 function update_banner() {
  67         detect_logged_in();
  68         if (current_room) {
  69                 document.getElementById("ctdl_banner_title").innerHTML = current_room;
  70                 document.title = current_room;
  71         }
  72         else {
  73                 document.getElementById("ctdl_banner_title").innerHTML = serv_info.serv_humannode;
  74         }
  75         document.getElementById("current_user").innerHTML = current_user ;
  76         if (logged_in) {
  77                 document.getElementById("lilo").innerHTML = "<a href=\"/ctdl/a/logout\"><i class=\"fa-regular fa-right-from-bracket\"></i>" + _("Log off") + "</a>" ;
  78         }
  79         else {
  80                 document.getElementById("lilo").innerHTML = "<a href=\"javascript:display_login_screen('')\">" + _("Log in") + "</a>" ;
  81         }
  82 }
  83
  84
  85 // goto room
  86 function gotoroom(roomname) {
  87
  88         fetch_room = async() => {
  89                 response = await fetch("/ctdl/r/" + escapeHTMLURI(roomname) + "/");
  90                 if (response.ok) {
  91                         data = await(response.json());
  92                         current_room = data.name;
  93                         new_messages = data.new_messages;
  94                         total_messages = data.total_messages;
  95                         current_view = data.current_view;
  96                         default_view = data.default_view;
  97                         last_seen = data.last_seen;
  98                         update_banner();
  99                         render_room_view(0, 9999999999);
 100                 }
 101         }
 102         fetch_room();
 103 }
 104
 105
 106 // Goto next room with unread messages
 107 // which_oper is 0=ungoto, 1=skip, 2=goto
 108 function gotonext(which_oper) {
 109         if (which_oper == 2) {                                  // Goto needs to mark messages as seen
 110
 111                 set_last_read_pointer = async() => {
 112                         response = await fetch("/ctdl/r/" + escapeHTMLURI(current_room) + "/slrp?last=" + last_seen);
 113                 }
 114                 set_last_read_pointer();
 115         }
 116
 117         if ((which_oper == 1) || (which_oper == 2)) {           // Skip or Goto both take us to the "next" room
 118                 if (march_list.length == 0) {
 119                         console.log("Loading march list");
 120                         load_new_march_list(which_oper);        // we will recurse back here
 121                 }
 122                 else {
 123                         next_room = march_list[0].name;
 124                         march_list.splice(0, 1);
 125                         console.log("going to " + next_room + " , " + march_list.length + " rooms remaining");
 126                         gotoroom(next_room);
 127                 }
 128         }
 129
 130         // FIXME implement mode 0 (ungoto)
 131
 132 }
 133
 134
 135 // Called by gotonext() when the march list is empty.
 136 function load_new_march_list(which_oper) {
 137         fetchm = async() => {
 138                 response = await fetch("/ctdl/r/");
 139                 march_list = await(response.json());
 140                 if (response.ok) {
 141                         march_list = march_list.filter(function(room) {
 142                                 return room.hasnewmsgs;
 143                         });
 144                         march_list = march_list.sort(function(a,b) {
 145                                 if (a.floor != b.floor) {
 146                                         return(a.floor - b.floor);
 147                                 }
 148                                 if (a.rorder != b.rorder) {
 149                                         return(a.rorder - b.rorder);
 150                                 }
 151                                 return(a.name < b.name);
 152                         });
 153
 154                         // If there are still no rooms with new messages, go to the Lobby.
 155                         if (march_list.length == 0) {
 156                                 march_list.push({name:"_BASEROOM_",known:true,hasnewmsgs:true,floor:0});
 157                         }
 158
 159                         gotonext(which_oper);
 160                 }
 161         }
 162         fetchm();
 163 }
 164
 165
 166 // Activate the "Loading..." modal
 167 function activate_loading_modal() {
 168         document.getElementById("ctdl_big_modal").innerHTML =
 169                   "<div class=\"w3-modal-content\">"
 170                 + "  <div class=\"w3-container\">"
 171
 172                 + "<i class=\"fas fa-spinner fa-spin\"></i>&nbsp;&nbsp;"
 173                 + _("Loading messages from server, please wait")
 174
 175                 + "  </div>"
 176                 + "</div>";
 177         document.getElementById("ctdl_big_modal").style.display = "block";
 178 }
 179
 180
 181 // Disappear the "Loading..." modal
 182 function deactivate_loading_modal() {
 183         document.getElementById("ctdl_big_modal").style.display = "none";
 184 }