Qt WebChannel Standalone Example▲
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<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<script type="text/javascript" src="./qwebchannel.js"></script>
<script type="text/javascript">
//BEGIN SETUP
function output(message) {
var output = document.getElementById("output");
output.innerHTML = output.innerHTML + message + "\n";
}
window.onload = function() {
if (location.search != "")
var baseUrl = (/[?&]webChannelBaseUrl=([A-Za-z0-9\-:/\.]+)/.exec(location.search)[1]);
else
var baseUrl = "ws://localhost:12345";
output("Connecting to WebSocket server at " + baseUrl + ".");
var socket = new WebSocket(baseUrl);
socket.onclose = function() {
console.error("web channel closed");
};
socket.onerror = function(error) {
console.error("web channel error: " + error);
};
socket.onopen = function() {
output("WebSocket connected, setting up QWebChannel.");
new QWebChannel(socket, function(channel) {
// make core object accessible globally
window.core = channel.objects.core;
document.getElementById("send").onclick = function() {
var input = document.getElementById("input");
var text = input.value;
if (!text) {
return;
}
output("Sent message: " + text);
input.value = "";
core.receiveText(text);
}
core.sendText.connect(function(message) {
output("Received message: " + message);
});
core.receiveText("Client connected, ready to send/receive messages!");
output("Connected to WebChannel, ready to send/receive messages!");
});
}
}
//END SETUP
</script>
<style type="text/css">
html {
height: 100%;
width: 100%;
}
#input {
width: 400px;
margin: 0 10px 0 0;
}
#send {
width: 90px;
margin: 0;
}
#output {
width: 500px;
height: 300px;
}
</style>
</head>
<body>
<textarea id="output"></textarea><br />
<input id="input" /><input type="submit" id="send" value="Send" onclick="javascript:click();" />
</body>
</html>