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- <!DOCTYPE html>
- <html lang="en">
- <head>
- <title>Chat Example</title>
- <script type="text/javascript">
- window.onload = function () {
- var conn;
- var msg = document.getElementById("msg");
- var log = document.getElementById("log");
- function appendLog(item) {
- var doScroll = log.scrollTop > log.scrollHeight - log.clientHeight - 1;
- log.appendChild(item);
- if (doScroll) {
- log.scrollTop = log.scrollHeight - log.clientHeight;
- }
- }
- document.getElementById("form").onsubmit = function () {
- if (!conn) {
- return false;
- }
- if (!msg.value) {
- return false;
- }
- conn.send(msg.value);
- msg.value = "";
- return false;
- };
- if (window["WebSocket"]) {
- conn = new WebSocket("ws://" + document.location.host + "/ws");
- conn.onclose = function (evt) {
- var item = document.createElement("div");
- item.innerHTML = "<b>Connection closed.</b>";
- appendLog(item);
- };
- conn.onmessage = function (evt) {
- var messages = evt.data.split('\n');
- for (var i = 0; i < messages.length; i++) {
- var item = document.createElement("div");
- item.innerText = messages[i];
- appendLog(item);
- }
- };
- } else {
- var item = document.createElement("div");
- item.innerHTML = "<b>Your browser does not support WebSockets.</b>";
- appendLog(item);
- }
- };
- </script>
- <style type="text/css">
- html {
- overflow: hidden;
- }
- body {
- overflow: hidden;
- padding: 0;
- margin: 0;
- width: 100%;
- height: 100%;
- background: gray;
- }
- #log {
- background: white;
- margin: 0;
- padding: 0.5em 0.5em 0.5em 0.5em;
- position: absolute;
- top: 0.5em;
- left: 0.5em;
- right: 0.5em;
- bottom: 3em;
- overflow: auto;
- }
- #form {
- padding: 0 0.5em 0 0.5em;
- margin: 0;
- position: absolute;
- bottom: 1em;
- left: 0px;
- width: 100%;
- overflow: hidden;
- }
- </style>
- </head>
- <body>
- <div id="log"></div>
- <form id="form">
- <input type="submit" value="Send" />
- <input type="text" id="msg" size="64"/>
- </form>
- </body>
- </html>
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