+// Forum view (flat) -- let's have another go at this with the rendering done client-side
+//
+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();
+ 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);
+ }
+
+ // Otherwise, show us the last 20 messages
+ else {
+ 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 align=\"center\" 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 align=\"center\" id=\"" + new_new_div_name + "\">" +
+ "<a href=\"javascript:forum_readmessages('" + new_new_div_name + "', " + newgt + ", 9999999999);\">"
+ + "link to msgs greater than " + newgt + "</a></div>" ;
+ }
+
+ // Now figure out where to scroll to after rendering.
+ if (gt_msg > 0) {
+ scroll_to = msgs[0];
+ }
+ else if (lt_msg < 9999999999) {
+ scroll_to = msgs[msgs.length-1];
+ }
+ else if ( (logged_in) && (gt_msg == 0) && (lt_msg == 9999999999) ) {
+ scroll_to = msgs[msgs.length-1];
+ }
+ else {
+ scroll_to = msgs[0]; // FIXME this is too naive
+ }
+
+ // Render the individual messages in the divs
+ forum_render_messages(msgs, "ctdl_msg_", scroll_to)
+ }
+ else {
+ // if xhr fails, this will make the link reappear so the user can try again
+ document.getElementById(target_div).innerHTML = original_text;
+ }
+ }
+ };
+ request.send();
+ request = null;
+}
+
+
+// Render a range of messages, with the div prefix specified