103 lines
2.8 KiB
HTML
103 lines
2.8 KiB
HTML
<title>Web Socket</title>
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<style>
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#chat { width: 97%; }
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.them { font-weight: bold; }
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.them:before { content: 'them '; color: #bbb; font-size: 14px; }
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.you { font-style: italic; }
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.you:before { content: 'you '; color: #bbb; font-size: 14px; font-weight: bold; }
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#log {
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overflow: auto;
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max-height: 300px;
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list-style: none;
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padding: 0;
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/* margin: 0;*/
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}
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#log li {
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border-top: 1px solid #ccc;
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margin: 0;
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padding: 10px 0;
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}
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</style>
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<article>
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<form>
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<input type="text" id="chat" placeholder="type and press enter to chat" />
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</form>
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<p id="status">Not connected</p>
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<p>Users connected: <span id="connected">0</span></p>
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<p>To test, open two windows with Web Socket support, type a message above and press return.</p>
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<p>The server side code is available here: <a href="http://github.com/remy/html5demos/tree/master/server/">node-web-socket & server</a> (note that it runs on <a href="http://nodejs.org/" title="node.js">nodejs</a>)</p>
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<ul id="log"></ul>
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</article>
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<script>
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// let's invite Firefox to the party.
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if (window.MozWebSocket) {
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window.WebSocket = window.MozWebSocket;
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}
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function openConnection() {
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// uses global 'conn' object
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if (conn.readyState === undefined || conn.readyState > 1) {
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conn = new WebSocket('ws://node.remysharp.com:8001');
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conn.onopen = function () {
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state.className = 'success';
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state.innerHTML = 'Socket open';
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};
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conn.onmessage = function (event) {
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// console.log(event.data);
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var message = event.data; //JSON.parse(event.data);
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if (!(/^\d+$/).test(message)) {
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log.innerHTML = '<li class="them">' + message.replace(/[<>&]/g, function (m) { return entities[m]; }) + '</li>' + log.innerHTML;
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} else {
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connected.innerHTML = message;
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}
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};
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conn.onclose = function (event) {
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state.className = 'fail';
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state.innerHTML = 'Socket closed';
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};
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}
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}
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var connected = document.getElementById('connected'),
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log = document.getElementById('log'),
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chat = document.getElementById('chat'),
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form = chat.form,
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conn = {},
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state = document.getElementById('status'),
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entities = {
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'<' : '<',
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'>' : '>',
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'&' : '&'
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};
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if (window.WebSocket === undefined) {
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state.innerHTML = 'Sockets not supported';
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state.className = 'fail';
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} else {
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state.onclick = function () {
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if (conn.readyState !== 1) {
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conn.close();
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setTimeout(function () {
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openConnection();
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}, 250);
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}
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};
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addEvent(form, 'submit', function (event) {
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event.preventDefault();
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// if we're connected
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if (conn.readyState === 1) {
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conn.send(JSON.stringify(chat.value));
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log.innerHTML = '<li class="you">' + chat.value.replace(/[<>&]/g, function (m) { return entities[m]; }) + '</li>' + log.innerHTML;
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chat.value = '';
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}
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});
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openConnection();
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}
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</script> |