//
-// 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.
// This function is the dispatcher that determines the correct view for a room,
-// and calls the correct renderer.
+// and calls the correct renderer. Greater/Less than bounds are accepted.
//
-function render_room_view() {
-
- switch(current_view) {
+function render_room_view(gt_msg, lt_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", gt_msg, lt_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() {
- var innerdivname = randomString(5);
- document.getElementById("main").innerHTML = "<div id=\"" + innerdivname + "\"><img src=\"/ctdl/s/throbber.gif\" />" + _("Loading messages from server, please wait") + "</div>" ;
+function forum_readmessages(target_div, gt_msg, lt_msg)
+{
+ original_text = document.getElementById(target_div).innerHTML; // in case we need to replace it after an error
+ document.getElementById(target_div).innerHTML =
+ "<i class=\"fas fa-spinner fa-spin\"></i> "
+ + _("Loading messages from server, please wait") ;
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 (lt_msg < 9999999999)
+ {
+ request.open("GET", "/ctdl/r/" + escapeHTMLURI(current_room) + "/msgs.lt|" + lt_msg, true);
+ }
+ else
+ {
+ request.open("GET", "/ctdl/r/" + escapeHTMLURI(current_room) + "/msgs.gt|" + gt_msg, true);
+ }
+ request.onreadystatechange = function()
+ {
+ if (this.readyState === 4)
+ {
+ if ((this.status / 100) == 2)
+ {
+ msgs = JSON.parse(this.responseText);
+ document.getElementById(target_div).innerHTML = "" ;
+
+ // 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 (gt_msg > 0)
+ {
+ msgs = msgs.slice(0, messages_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) | (lt_msg < 9999999999))
+ {
+ if (msgs.length > messages_per_page)
+ {
+ msgs = msgs.slice(msgs.length - messages_per_page);
+ }
+ new_old_div_name = randomString(5);
+ if (msgs.length < 1)
+ {
+ newlt = lt_msg;
+ }
+ else
+ {
+ newlt = msgs[0];
+ }
+ document.getElementById(target_div).innerHTML +=
+ "<div id=\"" + new_old_div_name + "\">" +
+ "<a href=\"javascript:forum_readmessages('" + new_old_div_name + "', 0, " + newlt + ");\">" +
+ "link to msgs less than " + newlt + "</a></div>" ;
+ }
+
+ // Render the divs (we will fill them in later)
+ for (var i in msgs)
+ {
+ document.getElementById(target_div).innerHTML += "<div id=\"ctdl_msg_" + msgs[i] + "\">#" + msgs[i] + "</div>" ;
+ }
+ if (lt_msg == 9999999999)
+ {
+ new_new_div_name = randomString(5);
+ if (msgs.length <= 0)
+ {
+ newgt = gt_msg;
+ }
+ else
+ {
+ newgt = msgs[msgs.length-1];
+ }
+ document.getElementById(target_div).innerHTML +=
+ "<div id=\"" + new_new_div_name + "\">" +
+ "<a href=\"javascript:forum_readmessages('" + new_new_div_name + "', " + newgt + ", 9999999999);\">" +
+ "link to msgs greater than " + newgt + "</a></div>" ;
+ }
+
+ // Render the individual messages in the divs
+ render_messages(msgs, "ctdl_msg_", views.VIEW_BBS);
}
- else {
- document.getElementById(innerdivname).outerHTML = "ERROR " + this.status ;
+ else
+ {
+ document.getElementById(target_div).innerHTML = original_text; // this will make the link reappear so the user can try again
}
}
};
request.send();
request = null;
}
+
+
+// Render a range of messages, in the view specified, with the div prefix specified
+//
+function render_messages(msgs, prefix, view)
+{
+ for (i=0; i<msgs.length; ++i)
+ {
+ render_one(prefix+msgs[i], msgs[i], view);
+ }
+}
+
+
+// We have to put each XHR for render_messages() into its own stack frame, otherwise it jumbles them together. I don't know why.
+function render_one(div, msgnum, view)
+{
+ var request = new XMLHttpRequest();
+ request.open("GET", "/ctdl/r/" + escapeHTMLURI(current_room) + "/" + msgs[i] + "/html", true);
+ request.onreadystatechange = function()
+ {
+ if (this.readyState === 4)
+ {
+ if ((this.status / 100) == 2)
+ {
+ document.getElementById(div).innerHTML = this.responseText; // FIXME don't let the C server render it. do JSON now.
+ }
+ else
+ {
+ document.getElementById(div).innerHTML = "ERROR";
+ }
+ }
+ };
+ request.send();
+ request = null;
+}
+
projects / citadel.git / blobdiff