2020-12-19 18:26:36 +01:00
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<!DOCTYPE html>
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<html>
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<head>
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<meta name="viewport" content="width=device-width, initial-scale=1, minimum-scale=1">
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<meta charset="utf-8">
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<meta name="theme-color" content="#222222">
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<title>WLED Live Preview</title>
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<style>
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body {
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margin: 0;
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}
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#canv {
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background: black;
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filter: brightness(175%);
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width: 100%;
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height: 100%;
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position: absolute;
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}
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</style>
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</head>
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<body>
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<div id="canv" />
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<script>
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console.info("Live-Preview websocket opening");
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var socket = new WebSocket("ws://"+document.location.host+"/ws");
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socket.onopen = function () {
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console.info("Live-Preview websocket is opened");
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2021-03-24 23:55:39 +01:00
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socket.send("{'lv':true,'rev':2}");
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2020-12-19 18:26:36 +01:00
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}
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socket.onclose = function () { console.info("Live-Preview websocket is closing"); }
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socket.onerror = function (event) { console.error("Live-Preview websocket error:", event); }
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function updatePreview(leds) {
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var str = "linear-gradient(90deg,";
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var len = leds.length;
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for (i = 0; i < len; i++) {
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var leddata = leds[i];
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if (leddata.length > 6) leddata = leddata.substring(2);
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str += "#" + leddata;
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if (i < len -1) str += ","
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}
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str += ")";
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document.getElementById("canv").style.background = str;
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}
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socket.onmessage = function (event) {
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try {
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var json = JSON.parse(event.data);
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if (json && json.leds) {
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requestAnimationFrame(function () {updatePreview(json.leds);});
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}
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}
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catch (err) {
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console.error("Live-Preview websocket error:",err);
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}
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}
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</script>
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</body>
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</html>
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