older and newer

[citadel.git] / webcit-ng / static / js / views.js

diff --git a/webcit-ng/static/js/views.js b/webcit-ng/static/js/views.js
index 33da436676fe35ba3e7efcacc5c9058a3aa2c64b..bb8f88e69a959f21722f5289c4725c7077b9b24b 100644 (file)
--- a/webcit-ng/static/js/views.js
+++ b/webcit-ng/static/js/views.js
@@ -1,5 +1,5 @@
 //
-// Copyright (c) 2016-2017 by the citadel.org team
+// Copyright (c) 2016-2018 by the citadel.org team
 //
 // This program is open source software; you can redistribute it and/or modify
 // it under the terms of the GNU General Public License version 3.
@@ -32,37 +32,97 @@ var views = {
 // This function is the dispatcher that determines the correct view for a room,
 // and calls the correct renderer.
 //
-function render_room_view() {
-
-       switch(current_view) {
+function render_room_view(min_msg, max_msg)
+{
+       switch(current_view)
+       {
                case views.VIEW_MAILBOX:                                                // FIXME view mail rooms as forums for now
                case views.VIEW_BBS:
-                       threads_readmessages();
+                       forum_readmessages("ctdl-main", min_msg, max_msg);
                        break;
                default:
-                       document.getElementById("main").innerHTML = "The view for " + current_room + " is " + current_view + " but there is no renderer." ;
+                       document.getElementById("ctdl-main").innerHTML = "The view for " + current_room + " is " + current_view + " but there is no renderer." ;
                        break;
        }
 
 }
 
 
-// bbs "threads" view
-// The inner div exists so that if the user clicks away early, the main div doesn't get clobbered when the load completes.
+// Forum view (flat) -- let's have another go at this with the rendering done client-side
 //
-function threads_readmessages() {
+function forum_readmessages(target_div, min_msg, max_msg)
+{
        var innerdivname = randomString(5);
-       document.getElementById("main").innerHTML = "<div id=\"" + innerdivname + "\"><img src=\"/ctdl/s/throbber.gif\" />" + _("Loading messages from server, please wait") + "</div>" ;
+       document.getElementById(target_div).innerHTML = "<div id=\"" + innerdivname +
+               "\"><br><br><br><center><h5><i class=\"fas fa-spinner fa-spin\"></i>&nbsp;&nbsp;"
+               + _("Loading messages from server, please wait") + "</h5></center></div>" ;
 
        var request = new XMLHttpRequest();
-       request.open("GET", "/ctdl/r/" + escapeHTMLURI(current_room) + "/" + "threads", true);
-       request.onreadystatechange = function() {
-               if (this.readyState === 4) {
-                       if ((this.status / 100) == 2) {
-                               document.getElementById(innerdivname).outerHTML = this.responseText;
+       if (max_msg < 9999999999)
+       {
+               request.open("GET", "/ctdl/r/" + escapeHTMLURI(current_room) + "/msgs.lt|" + max_msg, true);
+       }
+       else
+       {
+               request.open("GET", "/ctdl/r/" + escapeHTMLURI(current_room) + "/msgs.gt|" + min_msg, true);
+       }
+       request.onreadystatechange = function()
+       {
+               if (this.readyState === 4)
+               {
+                       if ((this.status / 100) == 2)
+                       {
+                               msgs = JSON.parse(this.responseText);
+
+                               document.getElementById(innerdivname).innerHTML = "" ;
+                                       //"Are we logged in? " + logged_in + "<br>"
+                                       //+ "Last seen: " + last_seen + "<br>"
+                                       //+ "Number of messages: " + msgs.length + "<br>"
+                                       //+ "min_msg=" + min_msg + "<br>"
+                                       //+ "max_msg=" + max_msg + "<br>" ;
+
+                               //if (msgs.length == 0)
+                               //{
+                                               //document.getElementById(innerdivname).innerHTML += "FIXME no msgs" ;
+                               //}
+
+                               // If we were given an explicit starting point, by all means start there.
+                               // Note that we don't have to remove them from the array because we did a 'msgs gt|xxx' command to Citadel.
+                               if (min_msg > 0)
+                               {
+                                       msgs = msgs.slice(0, msgs_per_page);
+                               }
+
+                               // show us the last 20 messages and scroll to the bottom (this will become the not-logged-in behavior)
+                               else if ((logged_in) | (!logged_in) | (max_msg < 9999999999))
+                               {
+                                       if (msgs.length > messages_per_page)
+                                       {
+                                               msgs = msgs.slice(msgs.length - messages_per_page);
+                                       }
+                                       document.getElementById(innerdivname).innerHTML +=
+                                               "<div id=\"older_msgs\">" +
+                                               "<a href=\"javascript:forum_readmessages('older_msgs', 0, " + msgs[0] + ");\">" +
+                                               "link to msgs less than " + msgs[0] + "</a></div>" ;
+                               }
+
+                               // It's render time, bitchez!
+                               for (var i in msgs)
+                               {
+                                       document.getElementById(innerdivname).innerHTML +=
+                                               "<div id=\"ctdl_msg_" + msgs[i] + "\">message #" + msgs[i] + "</div>" ;
+                               }
+                               if (max_msg == 9999999999)
+                               {
+                                       document.getElementById(innerdivname).innerHTML +=
+                                               "<div id=\"newer_msgs\">" +
+                                               "<a href=\"javascript:forum_readmessages('newer_msgs', msgs[msgs.length-1]+1, 9999999999);\">" +
+                                               "link to msgs greater than " + msgs[msgs.length-1] + "</a></div>" ;
+                               }
                        }
-                       else {
-                               document.getElementById(innerdivname).outerHTML = "ERROR " + this.status ;
+                       else
+                       {
+                               document.getElementById(innerdivname).innerHTML = this.status ;         // error message
                        }
                }
        };