Timestamp hover shows all servers' timestamps

[reliable-chat] / webclient / rc.html

diff --git a/webclient/rc.html b/webclient/rc.html
index c3284da03b1480583a40cfb4eb93b0d332d22196..d91d3a611c9e069c26ad1c2746dd0d46da63a3d3 100644 (file)
--- a/webclient/rc.html
+++ b/webclient/rc.html
@@ -56,6 +56,29 @@
                padding: 0px 5px 55px 5px;
                vertical-align: bottom
        }
+       .servercount {
+               margin-right: 0.5em;
+               font-size: 70%;
+       }
+       .timestamp {
+               margin-right: 0.8em;
+       }
+       .timestamp:hover, .timestamp:hover .servertimestamps {
+               background-color: #556;
+       }
+       .timestamp:hover .servertimestamps {
+               display: block;
+       }
+       .servertimestamps {
+         display: none;
+               position: absolute;
+               left: 3em;
+               z-index: 1;
+               border: 1px solid black;
+               border-radius: 5px;
+               padding-left: 5px;
+               padding-right: 5px;
+       }
        img { width: 1px; height: 1px; }
        iframe { display: none }
        #status span { margin-right: 10px; }
@@ -133,6 +156,63 @@
                return d + " " + pad(h) + ":" + pad(m) + ":" + pad(s);
        }
 
+       function rcaddservertimestamptohover(message, server) {
+               var divs = message.UI.getElementsByTagName("div");
+               for (var i in divs) {
+                       if (divs[i].getAttribute && divs[i].getAttribute("class") == "servertimestamps") {
+                               var d = document.createElement("div");
+                               function pad(x) {
+                                       return (x < 10 ? "00" : (x < 100 ? "0" : "")) + x;
+                               }
+                               var text = rcformattime(message.ServerTimes[server]) + "." + pad(message.ServerTimes[server].getUTCMilliseconds()) + " " + server;
+                               d.appendChild(document.createTextNode(text));
+                               divs[i].appendChild(d);
+                       }
+               }
+       }
+
+       function rcmakemessageUI(message) {
+               message.UI = document.createElement("div");
+
+               // Server count
+               var servercount = document.createElement("span");
+               servercount.setAttribute("class", "servercount");
+               servercount.appendChild(document.createTextNode(Object.keys(message.ServerTimes).length));
+               message.UI.appendChild(servercount);
+
+               // Timestamp
+               var timestamp_text = message.Time ? rcformattime(message.Time) : "";
+               var timestamp = document.createElement("span");
+               timestamp.setAttribute("class", "timestamp");
+               timestamp.appendChild(document.createTextNode(timestamp_text));
+               message.UI.appendChild(timestamp);
+
+               // Timestamp hover
+               var timestamp_hover = document.createElement("div");
+               timestamp_hover.setAttribute("class", "servertimestamps");
+               timestamp.appendChild(timestamp_hover);
+               for (var server in message.ServerTimes) {
+                       rcaddservertimestamptohover(message, server);
+               }
+
+               // Classify different message types
+               var text_span = document.createElement("span");
+               var type;
+               if (/^\*\*\* /.test(message.Text)) {
+                       type = "status";
+               } else if (/^\* /.test(message.Text)) {
+                       type = "me";
+               } else {
+                       type = "text";
+               }
+               if (Object.keys(message.ServerTimes).length == 0) {
+                       type += " self";
+               }
+               text_span.setAttribute("class", type);
+               text_span.appendChild(document.createTextNode(message.Text));
+               message.UI.appendChild(text_span);
+       }
+
        function rcaddmessagetohistory(message) {
                var message_i;
                if (message.Time) {
@@ -148,9 +228,9 @@
                        message_i = history.length-1;
                }
 
-               var text = (message.Time ? rcformattime(message.Time) : "") + " " + message.Text;
-               message.UI = document.createElement("div");
-               message.UI.appendChild(document.createTextNode(text));
+               if (!message.UI) {
+                       rcmakemessageUI(message);
+               }
                var h = document.getElementById("history");
                if (message_i + 1 < history.length) {
                        h.insertBefore(message.UI, history[message_i + 1].UI);
@@ -171,13 +251,34 @@
                        times.push(message.ServerTimes[i]);
                }
                times.sort();
-               var middle = times.length/2;
                if (times.length % 2) {
-                       message.Time = times[middle];
+                       message.Time = times[(times.length-1)/2];
                } else {
+                       var middle = times.length/2;
                        var difference = times[middle].getTime() - times[middle-1].getTime();
                        message.Time = new Date(times[middle-1].getTime() + difference/2);
                }
+
+               // This may have broken history's in-sorted-order invariant
+               var hi = history.indexOf(message);
+               if ((history[hi-1] && history[hi-1].Time > message.Time) ||
+                   (history[hi+1] && history[hi+1].Time < message.Time)) {
+                       history.splice(hi,1);
+                       rcaddmessagetohistory(message);
+               }
+
+               // Update the UI
+               var spans = message.UI.getElementsByTagName("span");
+               for (var i in spans) {
+                       if (spans[i].getAttribute) {
+                               var type = spans[i].getAttribute("class");
+                               if (type == "servercount") {
+                                       spans[i].firstChild.data = Object.keys(message.ServerTimes).length;
+                               } else if (type == "timestamp") {
+                                       spans[i].firstChild.data = rcformattime(message.Time);
+                               }
+                       }
+               }
        }
 
        function rcreceivemessages(server, messages) {
@@ -188,6 +289,7 @@
                        if (seen_key in seen) {
                                seen[seen_key].ServerTimes[server] = m.Time;
                                rcupdatemessagetime(seen[seen_key]);
+                               rcaddservertimestamptohover(seen[seen_key], server);
                        } else {
                                m.ServerTimes = {};
                                m.ServerTimes[server] = m.Time;