improved web

This commit is contained in:
Devaev Maxim 2018-07-11 23:23:19 +00:00
parent 00097cbb98
commit 498d8b1ecf
3 changed files with 160 additions and 59 deletions

41
kvmd/web/css/main.css Normal file
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.stream-box {
box-sizing: border-box;
display: inline-block;
background-color: #e5e5f5;
padding: 1em;
text-align: left;
}
.stream-box .stream-image {
width: 720px;
height: 576px;
border: 1px solid grey;
display: inline-block;
}
.session-opened {
}
.session-closed {
color: #ff3d40;
}
div#power-led, div#hdd-led {
border-radius: 50%;
border: 1px solid grey;
width: 16px;
height: 16px;
}
div.power-led-on {
background: #00ce00;
}
div.power-led-off {
background: #adceab;
}
div.hdd-led-on {
background: #ff373a;
}
div.hdd-led-off {
background: #ffcdce;
}
button#power-button, button#reset-button {
}

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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<title>&pi;-kvm</title>
<style>
body {
text-align: center;
}
.screen, .screen * {
box-sizing: border-box;
}
.screen {
display: inline-block;
background-color: #e5e5f5;
font-family: Arial, Tahoma, Verdana, sans;
font-size: 10pt;
text-align: center;
padding: 1em;
text-align: left;
}
.screen .screen-image {
width: 720px;
height: 576px;
border: 1px solid #77d;
display: inline-block;
}
</style>
<meta charset="utf-8" />
<title>&pi;-kvm</title>
<link rel="stylesheet" href="css/main.css">
</head>
<script>
ws = new WebSocket("ws://" + location.host + "/kvmd/ws");
function onWsMessage(message) {
console.log(message.data);
/*if (message.data == "EVENT mjpg_streamer started") {
document.getElementById("stream-image").src = "/streamer/?action=stream&time=" + new Date().getTime();
}*/
}
function onKeyEvent(event, state) {
// TODO: run this code under the lock
if (!event.metaKey) { // https://github.com/wesbos/keycodes/blob/gh-pages/scripts.js
event.preventDefault();
}
console.log("Key", (state ? "pressed:" : "released:"), event)
ws.send(JSON.stringify({
event_type: "key",
key: event.code,
state: state,
}));
}
ws.onmessage = (message) => onWsMessage(message);
ws.onerror = (error) => console.error(error);
ws.onclose = () => console.log("closed");
// https://www.codeday.top/2017/05/03/24906.html
document.onkeydown = (event) => onKeyEvent(event, true);
document.onkeyup = (event) => onKeyEvent(event, false);
</script>
<script src="js/kvmd.js"></script>
<script> window.onload = runKvmdSession; </script>
<body>
<div class="screen">
<img src="/streamer/?action=stream" id="stream-image" class="screen-image" alt="" />
</div>
<div class="stream-box">
<img src="/streamer/?action=stream" id="stream-image" class="stream-image" alt="" />
</div>
<table><tr>
<td><div id="power-led" class="power-led-off"></div></td>
<td><div id="hdd-led" class="hdd-led-off"></div></td>
<td>&nbsp;&nbsp;</td>
<td><button id="power-button" type="button" title="Click hardware power button" onclick="clickPowerButton();">Power</button></td>
<td><button id="power-button-long" type="button" title="Click hardware power button (long press)" onclick="clickPowerButtonLong();">Power (long)</button></td>
<td><button id="reset-button" type="button" title="Click to force reset" onclick="clickResetButton();">Reset</button></td>
<td>&nbsp;&nbsp;</td>
<td><div id="session-status">Not connected yet...</div></td>
</tr></table>
</body>
</html>

100
kvmd/web/js/kvmd.js Normal file
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KVMD_BASE_URL = "/kvmd"
// -----------------------------------------------------------------------------
function runKvmdSession() {
var ws = new WebSocket("ws://" + location.host + KVMD_BASE_URL + "/ws");
ws.onopen = function(event) {
alert("Session opened and keyboard will be captured");
__installHidHandlers(ws);
__setSessionStatus("session-opened", "Session opened (keyboard captured)");
};
ws.onmessage = function(event) {
// console.log("KVMD:", event.data);
event = JSON.parse(event.data);
if (event.msg_type == "event") {
if (event.msg.event == "atx_state") {
document.getElementById("power-led").className = "power-led-" + (event.msg.event_attrs.leds.power ? "on" : "off");
document.getElementById("hdd-led").className = "hdd-led-" + (event.msg.event_attrs.leds.hdd ? "on" : "off");
}
}
};
ws.onclose = function(event) {
__clearHidHandlers();
__setSessionStatus("session-closed", "Session closed (keyboard free), trying to reconnect...");
document.getElementById("power-led").className = "power-led-off";
document.getElementById("hdd-led").className = "hdd-led-off";
setTimeout(runKvmdSession, 5000);
};
ws.onerror = function(error) {
ws.close();
};
}
function __setSessionStatus(cls, msg) {
var el_session_status = document.getElementById("session-status");
el_session_status.innerHTML = msg;
el_session_status.className = cls;
}
function __installHidHandlers(ws) {
// https://www.codeday.top/2017/05/03/24906.html
document.onkeydown = (event) => __onKeyEvent(ws, event, true);
document.onkeyup = (event) => __onKeyEvent(ws, event, false);
}
function __clearHidHandlers() {
document.onkeydown = null;
document.onkeyup = null;
}
function __onKeyEvent(ws, event, state) {
if (!event.metaKey) { // https://github.com/wesbos/keycodes/blob/gh-pages/scripts.js
event.preventDefault();
}
// console.log("KVMD: Key", (state ? "pressed:" : "released:"), event)
ws.send(JSON.stringify({
event_type: "key",
key: event.code,
state: state,
}));
}
// -----------------------------------------------------------------------------
function clickPowerButton() {
if (confirm("Are you sure to click the power button?")) {
__clickButton("power");
}
}
function clickPowerButtonLong() {
if (confirm("Are you sure to perform the long press of the power button?")) {
__clickButton("power_long");
}
}
function clickResetButton() {
if (confirm("Are you sure to reboot the server?")) {
__clickButton("reset");
}
}
function __clickButton(button) {
var http = new XMLHttpRequest();
http.open("POST", KVMD_BASE_URL + "/atx/click?button=" + button, true);
http.onreadystatechange = function() {
if (http.readyState == 4) {
if (http.status == 200) {
alert("Clicked!")
} else {
alert("Click error: " + http.responseText);
}
}
}
http.send();
}