X-Git-Url: http://git.scottworley.com/reliable-chat/blobdiff_plain/5a6c082a931b94c5e3593b1abb6eafeb2b4ef258..a7a2c8b6c0d41519e516008ba2306c4a3948c40b:/webclient/rc.html

diff --git a/webclient/rc.html b/webclient/rc.html
index 2bb1610..4a956ea 100644
--- a/webclient/rc.html
+++ b/webclient/rc.html
@@ -23,7 +23,7 @@
  <title>Reliable Chat</title>
   <style type="text/css"><!--/*--><![CDATA[/*><!--*/
 	html, body {
-		width: 99.9%;
+		width: 100%;
 		height: 100%;
 		margin: 0;
 		padding: 0;
@@ -31,6 +31,9 @@
 		color: silver;
 		font-family: monospace;
 	}
+	a {
+		color: #ddd;
+	}
 	#container {
 		height: 100%;
 	}
@@ -41,9 +44,7 @@
 		padding: 5px 5px 5px 0px;
 	}
 	#client {
-		width: 98.5%;
-		padding: 0px 0px 0px 5px;
-		height: 50px;
+		width: 100%;
 		position: fixed;
 		bottom: 0;
 	}
@@ -53,8 +54,44 @@
 	}
 	#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;
+	}
+	.status {
+		color: #dd8;
+	}
+	.local.self {
+		color: #d8d;
+	}
+	.self {
+		color: #8d8;
+	}
+	.me {
+		color: #bbd;
+	}
+	.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 }
@@ -75,13 +112,65 @@
 		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[//><!--
-	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();
-	var since = {};
-	var seen = {};
+	var session = Math.random();  // For outgoing message IDs
+	var since = {};    // server -> time: For fetch?since=
+	var seen = {};     // seen_key -> message
+	var history = [];  // List of messages sorted by Time
+	// Messages have these fields:
+	//   Time: The timestamp.  Median of ServerTimes
+	//   ID: Some unique string for deduping
+	//   Text: The text of the message
+	//   ServerTimes: server -> timestamp
+	//   UI: The DOM node for this message in the UI
 
 	function rcnick() {
 		var nick = localStorage.getItem("nick");
@@ -114,25 +203,195 @@
 		}
 	}
 
+	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();
+		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);
+		}
+		if (text) {
+			text_span.appendChild(document.createTextNode(text));
+		}
+
+		message.UI.appendChild(text_span);
+	}
+
 	function rcaddmessagetohistory(message) {
-		var d = document.createElement("div");
-		d.appendChild(document.createTextNode(message));
+		var message_i;
+		if (message.Time) {
+			for (var i = history.length - 1; ; i--) {
+				if (i < 0 || (history[i].Time && message.Time >= history[i].Time)) {
+					message_i = i+1;
+					history.splice(message_i, 0, message);
+					break;
+				}
+			}
+		} else {
+			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);
+		}
+	}
+
+	function rcaddmessagetoUI(message, before) {
+		if (!message.UI) {
+			rcmakemessageUI(message);
+		}
 		var h = document.getElementById("history");
-		h.appendChild(d);
+		if (before) {
+			h.insertBefore(message.UI, before);
+		} else {
+			h.appendChild(message.UI);
+		}
 		window.scrollTo(0, document.body.scrollHeight);
-		return d;
 	}
 
 	function make_seen_key(id, text) {
 		return id.replace(/@/g, "@@") + "_@_" + text.replace(/@/g, "@@");
 	}
 
+	function rcupdatemessagetime(message) {
+		// Set message.Time to be the median of message.ServerTimes
+		var times = [];
+		for (var i in message.ServerTimes) {
+			times.push(message.ServerTimes[i]);
+		}
+		times.sort();
+		if (times.length % 2) {
+			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) {
 		for (var i in messages) {
-			var seen_key = make_seen_key(messages[i]['ID'], messages[i]['Text']);
-			if (!(seen_key in seen)) {
-				seen[seen_key] = true;
-				rcaddmessagetohistory(messages[i]['Text']);
+			var m = messages[i];
+			m.Time = new Date(m.Time);
+			var seen_key = make_seen_key(m.ID, m.Text);
+			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;
+				seen[seen_key] = m;
+				rcaddmessagetohistory(m);
 				for (var i in servers) {
 					rcchangeserverstatus(servers[i], "sad");
 				}
@@ -151,11 +410,11 @@
 					if (rtxt != null) {
 						var messages = JSON.parse(rtxt);
 						if (messages != null) {
-							rcreceivemessages(server, messages);
 							delay = 40;
 							if (messages.length >= 1 && "Time" in messages[messages.length-1]) {
-								since[server] = messages[messages.length-1]["Time"];
+								since[server] = messages[messages.length-1].Time;
 							}
+							rcreceivemessages(server, messages);
 						}
 					}
 				}
@@ -171,6 +430,7 @@
 	}
 
 	function rcconnect() {
+		makeExpandingArea(document.getElementById("expando"));
 		for (var i in servers) {
 			rcfetch(servers[i]);
 			// Status bar entry
@@ -182,41 +442,82 @@
 	}
 
 	function rcsend(d, message) {
-		var id = new Date().getTime() + "-" + session + "-" + Math.random();
-		seen[make_seen_key(id, message)] = true;
+		message.ID = new Date().getTime() + "-" + session + "-" + Math.random();
+		seen[make_seen_key(message.ID, message.Text)] = message;
 		var path = "/speak" +
-			"?id=" + encodeURIComponent(id) +
-			"&text=" + encodeURIComponent(message);
+			"?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;
-		var re = /^\/([a-z]+) (.*)/
+		var re = /^\/(\S+)(\s(.*))?/;
 		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;
+				}
+				if (rest) {
+					message = "*** " + rcnick() + " is now known as " + rest;
+					rcsetnick(rest);
+				} else {
+					rcaddmessagetoUI({'Text': '-!- /nick requires an argument', 'ServerTimes': {}});
+					return;
+				}
+			} else {
+				rcaddmessagetoUI({'Text': '-!- No such command: ' + command, 'ServerTimes': {}});
+				return;
+			}
 		} else {
 			message = "<" + rcnick() + "> " + input;
 		}
 
-		var d = rcaddmessagetohistory(message);
-		rcsend(d, message);
+		var m = {'Text': message, 'ServerTimes': {}};
+		rcaddmessagetohistory(m);
+		rcsend(m.UI, m);
 	}
 
 	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 = "";
-			
+			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>
@@ -225,13 +526,20 @@
 
 <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 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">
-					<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>
-			<div id="status">&nbsp;</div>
+			<div id="status"></div>
 		</div>
 	</div>
 </body>