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41b968baac
Closes #793 Related to #733 Adjusts the reported aspect ratio based on GEOMETRY env var. Also adjusts stylesheet in screencast HTML to match. --------- Co-authored-by: Ilya Kreymer <ikreymer@gmail.com>
90 lines
2.1 KiB
HTML
90 lines
2.1 KiB
HTML
<!doctype html>
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<html>
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<head>
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<style>
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#content {
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display: flex;
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flex-direction: row;
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flex-wrap: wrap;
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}
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#content img {
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width: 640px;
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height: 480px;
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margin: 2rem;
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}
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</style>
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<script>
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const ws = new WebSocket(
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window.location.href.replace("http", "ws") + "ws",
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);
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ws.addEventListener("message", (event) => handleMessage(event.data));
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const unusedElems = [];
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function handleMessage(resp) {
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resp = JSON.parse(resp);
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switch (resp.msg) {
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case "init":
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if (resp.width && resp.height) {
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try {
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self.document.styleSheets[0].rules[1].style.width = resp.width + "px";
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self.document.styleSheets[0].rules[1].style.height = resp.height + "px";
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} catch (e) {
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console.log("Error adjusting stylesheet: ", e);
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}
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}
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break;
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case "screencast":
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img = createImage(resp.id);
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if (resp.data) {
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setImageData(img, resp.data);
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}
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break;
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case "close":
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img = unuseImage(resp.id);
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break;
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}
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}
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function setImageData(img, data) {
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//img.style.display = "";
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img.src = "data:image/png;base64," + data;
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}
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function createImage(id) {
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let elem = document.getElementById(id);
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if (elem) {
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return elem;
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}
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if (unusedElems.length) {
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elem = unusedElems.shift();
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elem.setAttribute("id", id);
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return elem;
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}
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elem = document.createElement("img");
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elem.setAttribute("id", id);
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document.getElementById("content").appendChild(elem);
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return elem;
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}
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function unuseImage(id) {
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const elem = document.getElementById(id);
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if (!elem) {
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return;
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}
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//elem.style.display = "none";
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unusedElems.push(elem);
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}
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</script>
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<head>
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<body>
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<div id="content"></div>
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</body>
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</head>
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</head>
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</html>
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