webcit-ng/static/js/main.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 var current_room = "_BASEROOM_";
  16 var new_messages = 0;
  17 var total_messages = 0;
  18 var default_view = 0;
  19 var current_view = 0;
  20 var logged_in = 0;
  21 var current_user = _("Not logged in.");
  22 var serv_info;
  23 var last_seen = 0;
  24 var messages_per_page = 20;
  25 var march_list = [] ;
  26
  27
  28 // Placeholder for when we add i18n later
  29 function _(x) {
  30         return x;
  31 }
  32
  33
  34 // This is called at the very beginning of the main page load.
  35 //
  36 ctdl_startup = async() => {
  37         response = await fetch("/ctdl/c/info");
  38
  39         if (response.ok) {
  40                 serv_info = await(response.json());
  41                 if (serv_info.serv_rev_level < 905) {
  42                         alert(_("Citadel server is too old, some functions may not work"));
  43                 }
  44
  45                 update_banner();
  46
  47                 // for now, show a room list in the main div
  48                 gotoroom("_BASEROOM_");
  49                 display_room_list();
  50         }
  51         else {
  52                 document.getElementById("ctdl-main").innerHTML =
  53                         "<div class=\"w3-panel w3-red\"><p>"
  54                         + _("This program was unable to connect or stay connected to the Citadel server.  Please report this problem to your system administrator.")
  55                         + "</div>";
  56         }
  57 }
  58
  59
  60 // Display a room list in the main div.
  61 //
  62 function display_room_list() {
  63         document.getElementById("roomlist").innerHTML = "<img src=\"/ctdl/s/static/throbber.gif\" />";  // show throbber while loading
  64
  65         fetch_room_list = async() => {
  66                 response = await fetch("/ctdl/r/");
  67                 room_list = await(response.json());
  68                 if (response.ok) {
  69                         display_room_list_renderer(room_list);
  70                 }
  71         }
  72         fetch_room_list();
  73 }
  74
  75
  76 // Renderer for display_room_list()
  77 //
  78 function display_room_list_renderer(data) {
  79         data = data.sort(function(a,b) {
  80                 if (a.floor != b.floor) {
  81                         return(a.floor - b.floor);
  82                 }
  83                 if (a.rorder != b.rorder) {
  84                         return(a.rorder - b.rorder);
  85                 }
  86                 return(a.name < b.name);
  87         });
  88
  89         new_roomlist_text = "<ul>" ;
  90
  91         for (var i in data) {
  92                 if (i > 0) {
  93                         if (data[i].floor != data[i-1].floor) {
  94                                 new_roomlist_text = new_roomlist_text + "<li class=\"divider\"></li>" ;
  95                         }
  96                 }
  97                 new_roomlist_text = new_roomlist_text +
  98                         "<li>"
  99                         + (data[i].hasnewmsgs ? "<b>" : "")
 100                         + "<a href=\"javascript:gotoroom('" + escapeJS(escapeHTML(data[i].name)) + "');\">"
 101                         + escapeHTML(data[i].name)
 102                         + (data[i].hasnewmsgs ? "</b>" : "")
 103                         + "</a></li>"
 104                 ;
 105         }
 106         new_roomlist_text = new_roomlist_text + "</ul>";
 107         document.getElementById("roomlist").innerHTML = new_roomlist_text ;
 108 }
 109
 110
 111 // Update the "banner" div with all relevant info.
 112 //
 113 function update_banner() {
 114         detect_logged_in();
 115         if (current_room) {
 116                 document.getElementById("ctdl_banner_title").innerHTML = current_room;
 117                 document.title = current_room;
 118         }
 119         else {
 120                 document.getElementById("ctdl_banner_title").innerHTML = serv_info.serv_humannode;
 121         }
 122         document.getElementById("current_user").innerHTML = current_user ;
 123         if (logged_in) {
 124                 document.getElementById("lilo").innerHTML = "<a href=\"/ctdl/a/logout\">" + _("Log off") + "</a>" ;
 125         }
 126         else {
 127                 document.getElementById("lilo").innerHTML = "<a href=\"javascript:display_login_screen('')\">" + _("Log in") + "</a>" ;
 128         }
 129 }
 130
 131
 132 // goto room
 133 //
 134 function gotoroom(roomname) {
 135
 136         fetch_room = async() => {
 137                 response = await fetch("/ctdl/r/" + escapeHTMLURI(roomname) + "/");
 138                 data = await(response.json());
 139                 if (response.ok) {
 140                         current_room = data.name;
 141                         new_messages = data.new_messages;
 142                         total_messages = data.total_messages;
 143                         current_view = data.current_view;
 144                         default_view = data.default_view;
 145                         last_seen = data.last_seen;
 146                         update_banner();
 147                         render_room_view(0, 9999999999);
 148                 }
 149         }
 150         fetch_room();
 151 }
 152
 153
 154 // Goto next room with unread messages
 155 // which_oper is 0=ungoto, 1=skip, 2=goto
 156 //
 157 function gotonext(which_oper) {
 158         if (which_oper != 2) return;            // FIXME implement the other two
 159         if (march_list.length == 0) {
 160                 load_new_march_list();          // we will recurse back here
 161         }
 162         else {
 163                 next_room = march_list[0].name;
 164                 march_list.splice(0, 1);
 165                 console.log("going to " + next_room + " , " + march_list.length + " rooms remaining in march list");
 166                 gotoroom(next_room);
 167         }
 168 }
 169
 170
 171 // Called by gotonext() when the march list is empty.
 172 //
 173 function load_new_march_list() {
 174         fetchm = async() => {
 175                 response = await fetch("/ctdl/r/");
 176                 march_list = await(response.json());
 177                 if (response.ok) {
 178                         march_list = march_list.filter(function(room) {
 179                                 return room.hasnewmsgs;
 180                         });
 181                         march_list = march_list.sort(function(a,b) {
 182                                 if (a.floor != b.floor) {
 183                                         return(a.floor - b.floor);
 184                                 }
 185                                 if (a.rorder != b.rorder) {
 186                                         return(a.rorder - b.rorder);
 187                                 }
 188                                 return(a.name < b.name);
 189                         });
 190                         march_list.push({name:"_BASEROOM_",known:true,hasnewmsgs:true,floor:0});
 191                         gotonext();
 192                 }
 193         }
 194         fetchm();
 195 }
 196
 197
 198 // Activate the "Loading..." modal
 199 function activate_loading_modal() {
 200         document.getElementById("ctdl_big_modal_content").innerHTML =
 201                 "<i class=\"fas fa-spinner fa-spin\"></i>&nbsp;&nbsp;"
 202                 + _("Loading messages from server, please wait");
 203         document.getElementById("ctdl_big_modal").style.display = "block";
 204 }
 205
 206
 207 // Disappear the "Loading..." modal
 208 function deactivate_loading_modal() {
 209         document.getElementById("ctdl_big_modal").style.display = "none";
 210 }