Use XMLHttpRequest POST to send messages

[reliable-chat] / webclient / rc.html

diff --git a/webclient/rc.html b/webclient/rc.html
index c3284da03b1480583a40cfb4eb93b0d332d22196..da5874a30c0de7ce2679ee11bd85bcd74970469f 100644 (file)
--- a/webclient/rc.html
+++ b/webclient/rc.html
@@ -23,7 +23,7 @@
  <title>Reliable Chat</title>
   <style type="text/css"><!--/*--><![CDATA[/*><!--*/
        html, body {
  <title>Reliable Chat</title>
   <style type="text/css"><!--/*--><![CDATA[/*><!--*/
        html, body {

-               width: 99.9%;
+               width: 100%;

                height: 100%;
                margin: 0;
                padding: 0;
                height: 100%;
                margin: 0;
                padding: 0;


@@ -31,6 +31,9 @@
                color: silver;
                font-family: monospace;
        }
                color: silver;
                font-family: monospace;
        }

+       a {
+               color: #ddd;
+       }

        #container {
                height: 100%;
        }
        #container {
                height: 100%;
        }


@@ -41,9 +44,7 @@
                padding: 5px 5px 5px 0px;
        }
        #client {
                padding: 5px 5px 5px 0px;
        }
        #client {

-               width: 98.5%;
-               padding: 0px 0px 0px 5px;
-               height: 50px;
+               width: 100%;

                position: fixed;
                bottom: 0;
        }
                position: fixed;
                bottom: 0;
        }


@@ -53,8 +54,32 @@
        }
        #say { width: 100% }
        #history {
        }
        #say { width: 100% }
        #history {

-               padding: 0px 5px 55px 5px;
-               vertical-align: bottom
+               padding: 0px 5px 30px 5px;
+               vertical-align: bottom;
+       }
+       .banner {
+               font-size: 85%;
+               text-align: right;
+       }
+       .servercount {
+               margin-right: -0.5em;
+               font-size: 70%;
+       }
+       .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 }
        }
        img { width: 1px; height: 1px; }
        iframe { display: none }


@@ -75,9 +100,54 @@
                padding-left: 5px;
                padding-right: 5px;
        }
                padding-left: 5px;
                padding-right: 5px;
        }

+
+       /* BEGIN expando input box trick kindly provided by http://www.alistapart.com/articles/expanding-text-areas-made-elegant/ */
+       .expandingArea {
+               position: relative;
+               border: 1px solid #888;
+               background: silver;
+       }
+       .expandingArea > textarea,
+       .expandingArea > pre {
+               margin: 0;
+               outline: 0;
+               border: 0;
+               padding: 5px;
+               background: transparent;
+               font: 400 13px/16px helvetica, arial, sans-serif;
+               /* Make the text soft-wrap */
+               white-space: pre-wrap;
+               word-wrap: break-word;
+       }
+       .expandingArea > textarea {
+               /* The border-box box model is used to allow
+                * padding whilst still keeping the overall width
+                * at exactly that of the containing element.
+                */
+               -webkit-box-sizing: border-box;
+                  -moz-box-sizing: border-box;
+                   -ms-box-sizing: border-box;
+                       box-sizing: border-box;
+               width: 100%;
+               /* Hide any scrollbars */
+               overflow: hidden;
+               position: absolute;
+               top: 0;
+               left: 0;
+               height: 100%;
+               /* Remove WebKit user-resize widget */
+               resize: none;
+       }
+       .expandingArea > pre {
+               display: block;
+               /* Hide the text; just using it for sizing */
+               visibility: hidden;
+       }
+       /* END expando input box trick kindly provided by http://www.alistapart.com/articles/expanding-text-areas-made-elegant/ */
+

   /*]]>*/--></style>
   <script type="text/javascript"><!--//--><![CDATA[//><!--
   /*]]>*/--></style>
   <script type="text/javascript"><!--//--><![CDATA[//><!--

-       var servers = ['chkno.net', 'rc2.chkno.net', 'echto.net', 'the-wes.com', 'vibrantlogic.com'];
+       var servers = ['chkno.net', 'rc2.chkno.net', 'reliablechat-chk.rhcloud.com:80', 'intense-basin-3395.herokuapp.com:80', 'echto.net', 'the-wes.com', 'vibrantlogic.com'];

 
        var session = Math.random();  // For outgoing message IDs
        var since = {};    // server -> time: For fetch?since=
 
        var session = Math.random();  // For outgoing message IDs
        var since = {};    // server -> time: For fetch?since=


@@ -121,16 +191,104 @@
                }
        }
 
                }
        }
 

+       function rcpad2(x) {
+               return (x < 10 ? "0" : "") + x;
+       }
+       function rcpad3(x) {
+               return (x < 10 ? "00" : (x < 100 ? "0" : "")) + x;
+       }
+

        function rcformattime(t) {
                var d = t.getDay();
                d = ["Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"][d];
                var h = t.getHours();
                var m = t.getMinutes();
                var s = t.getSeconds();
        function rcformattime(t) {
                var d = t.getDay();
                d = ["Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"][d];
                var h = t.getHours();
                var m = t.getMinutes();
                var s = t.getSeconds();

-               function pad(x) {
-                       return (x < 10 ? "0" : "") + x;
+               return d + " " + rcpad2(h) + ":" + rcpad2(m) + ":" + rcpad2(s);
+       }
+
+       function rcaddservertimestamptohover(message, server) {
+               var divs = message.UI.getElementsByTagName("div");
+               var t = message.ServerTimes[server];
+               for (var i in divs) {
+                       if (divs[i].getAttribute && divs[i].getAttribute("class") == "servertimestamps") {
+                               var d = document.createElement("div");
+                               var text = t.getFullYear() + "-" +
+                                       rcpad2(t.getMonth()) + "-" +
+                                       rcpad2(t.getDay()) + " " +
+                                       rcformattime(t) + "." +
+                                       rcpad3(t.getMilliseconds()) + " " +
+                                       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);
+               message.UI.appendChild(document.createTextNode(" "));
+
+               // 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);
+               message.UI.appendChild(document.createTextNode(" "));
+
+               // 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 if (/^-!- /.test(message.Text)) {
+                       type = "local";
+               } else {
+                       type = "text";
+               }
+               if (Object.keys(message.ServerTimes).length == 0) {
+                       type += " self";
+               }
+               text_span.setAttribute("class", type);
+
+               // URL detection
+               var text = message.Text;
+               var URL_re = /\bhttps?:\/\/\S+/;
+               while (URL_re.test(text)) {
+                       var match = URL_re.exec(text);
+                       var leading_text = text.substr(0, match.index);
+                       if (leading_text) {
+                               text_span.appendChild(document.createTextNode(leading_text));
+                       }
+                       var anchor = document.createElement("a");
+                       anchor.setAttribute("rel", "nofollow");
+                       anchor.setAttribute("href", encodeURI(match[0]));
+                       anchor.appendChild(document.createTextNode(match[0]));
+                       text_span.appendChild(anchor);
+                       text = text.substr(match.index + match[0].length);

                }
                }

-               return d + " " + pad(h) + ":" + pad(m) + ":" + pad(s);
+               if (text) {
+                       text_span.appendChild(document.createTextNode(text));
+               }
+
+               message.UI.appendChild(text_span);

        }
 
        function rcaddmessagetohistory(message) {
        }
 
        function rcaddmessagetohistory(message) {


@@ -147,13 +305,20 @@
                        history.push(message);
                        message_i = history.length-1;
                }
                        history.push(message);
                        message_i = history.length-1;
                }

+               if (message_i + 1 < history.length) {
+                       rcaddmessagetoUI(message, history[message_i + 1].UI);
+               } else {
+                       rcaddmessagetoUI(message, null);
+               }
+       }

 
 

-               var text = (message.Time ? rcformattime(message.Time) : "") + " " + message.Text;
-               message.UI = document.createElement("div");
-               message.UI.appendChild(document.createTextNode(text));
+       function rcaddmessagetoUI(message, before) {
+               if (!message.UI) {
+                       rcmakemessageUI(message);
+               }

                var h = document.getElementById("history");
                var h = document.getElementById("history");

-               if (message_i + 1 < history.length) {
-                       h.insertBefore(message.UI, history[message_i + 1].UI);
+               if (before) {
+                       h.insertBefore(message.UI, before);

                } else {
                        h.appendChild(message.UI);
                }
                } else {
                        h.appendChild(message.UI);
                }


@@ -171,13 +336,34 @@
                        times.push(message.ServerTimes[i]);
                }
                times.sort();
                        times.push(message.ServerTimes[i]);
                }
                times.sort();

-               var middle = times.length/2;

                if (times.length % 2) {
                if (times.length % 2) {

-                       message.Time = times[middle];
+                       message.Time = times[(times.length-1)/2];

                } else {
                } 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);
                }
                        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) {
        }
 
        function rcreceivemessages(server, messages) {


@@ -188,6 +374,7 @@
                        if (seen_key in seen) {
                                seen[seen_key].ServerTimes[server] = m.Time;
                                rcupdatemessagetime(seen[seen_key]);
                        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;
                        } else {
                                m.ServerTimes = {};
                                m.ServerTimes[server] = m.Time;


@@ -231,6 +418,7 @@
        }
 
        function rcconnect() {
        }
 
        function rcconnect() {

+               makeExpandingArea(document.getElementById("expando"));

                for (var i in servers) {
                        rcfetch(servers[i]);
                        // Status bar entry
                for (var i in servers) {
                        rcfetch(servers[i]);
                        // Status bar entry


@@ -248,22 +436,32 @@
                        "?id=" + encodeURIComponent(message.ID) +
                        "&text=" + encodeURIComponent(message.Text);
                for (var i in servers) {
                        "?id=" + encodeURIComponent(message.ID) +
                        "&text=" + encodeURIComponent(message.Text);
                for (var i in servers) {

-                       var uri = rcserverbase(servers[i]) + path;
-                       var img = document.createElement("img");
-                       img.setAttribute("src", uri);
-                       d.appendChild(img);
+                       var xhr = new XMLHttpRequest();
+                       xhr.open("POST", rcserverbase(servers[i]) + path);
+                       xhr.send();

                }
        }
 
        function rcinput(input) {
                var message;
                }
        }
 
        function rcinput(input) {
                var message;

-               var re = /^\/([a-z]+) (.*)/
+               var re = /^\/(\S+)(\s(.*))?/;

                var match = re.exec(input);
                var match = re.exec(input);

-               if (match && match[1] == 'me') {
-                       message = "* " + rcnick() + "  " + match[2];
-               } else if (match && match[1] == 'nick') {
-                       message = "*** " + rcnick() + " is now known as " + match[2];
-                       rcsetnick(match[2]);
+               if (match) {
+                       var command = match[1];
+                       var rest = match[3];
+                       if (command == 'me') {
+                               message = "* " + rcnick() + "  " + rest;
+                       } else if (command == 'nick') {
+                               if (rcnick() == rest) {
+                                       rcaddmessagetoUI({'Text': '-!- Your nick is already ' + rcnick(), 'ServerTimes': {}});
+                                       return;
+                               }
+                               message = "*** " + rcnick() + " is now known as " + rest;
+                               rcsetnick(rest);
+                       } else {
+                               rcaddmessagetoUI({'Text': '-!- No such command: ' + command, 'ServerTimes': {}});
+                               return;
+                       }

                } else {
                        message = "<" + rcnick() + "> " + input;
                }
                } else {
                        message = "<" + rcnick() + "> " + input;
                }


@@ -275,9 +473,34 @@
 
        function rckeydown(event) {
                if (event.keyCode == 13) {
 
        function rckeydown(event) {
                if (event.keyCode == 13) {

-                       rcinput(document.input.say.value);
+                       if (document.input.say.value) {
+                               rcinput(document.input.say.value);
+                       }

                        document.input.say.value = "";
                        document.input.say.value = "";

-                       
+                       return false;
+               }
+       }
+
+       // From http://www.alistapart.com/articles/expanding-text-areas-made-elegant/
+       function makeExpandingArea(container) {
+               var area = container.querySelector('textarea');
+               var span1 = container.querySelector('span');
+               var span2 = document.getElementById('historypad');
+               if (area.addEventListener) {
+                       area.addEventListener('input', function() {
+                               span1.textContent = area.value;
+                               span2.textContent = area.value;
+                       }, false);
+                       span1.textContent = area.value;
+                       span2.textContent = area.value;
+               } else if (area.attachEvent) {
+                       // IE8 compatibility
+                       area.attachEvent('onpropertychange', function() {
+                               span1.innerText = area.value;
+                               span2.innerText = area.value;
+                       });
+                       span1.innerText = area.value;
+                       span2.innerText = area.value;

                }
        }
   //--><!]]></script>
                }
        }
   //--><!]]></script>


@@ -286,13 +509,20 @@
 
 <body onload="rcconnect()">
        <div id="container">
 
 <body onload="rcconnect()">
        <div id="container">

+               <div class="banner">(You are using <a href="https://github.com/chkno/reliable-chat">Reliable Chat</a>)</div>

                <div id="history"></div>
                <div id="history"></div>

+               <div class="expandingArea" style="visibility: hidden">
+                       <pre><span id="historypad"></span><br></pre>
+               </div>

                <div id="client">
                        <div id="input">
                                <form name="input" onsubmit="return false" autocomplete="off">
                <div id="client">
                        <div id="input">
                                <form name="input" onsubmit="return false" autocomplete="off">

-                                       <input id="say" onkeydown="return rckeydown(event)" autocomplete="off" autofocus="autofocus"></input>
+                                       <div id="expando" class="expandingArea">
+                                               <pre><span></span><br></pre>
+                                               <textarea id="say" onkeydown="return rckeydown(event)" autofocus="autofocus"></textarea>
+                                       </div>

                                </form></div>
                                </form></div>

-                       <div id="status">&nbsp;</div>
+                       <div id="status"></div>

                </div>
        </div>
 </body>
                </div>
        </div>
 </body>