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Split HTML and binary #17

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75 changes: 6 additions & 69 deletions srvfb.go
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Original file line number Diff line number Diff line change
Expand Up @@ -24,6 +24,7 @@ import (
"hash/fnv"
"image"
"io"
"io/ioutil"
"log"
"mime"
"mime/multipart"
Expand Down Expand Up @@ -294,75 +295,11 @@ func (h *handler) serveImage(w http.ResponseWriter, r *http.Request) {
}

func (h *handler) serveIndex(w http.ResponseWriter, r *http.Request) {
const idx = `<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>srvfb</title>
<style>
body {
width: 100%;
height: 100%;
}

#stream {
position: absolute;
top: 0;
left: 0;
background: url("video");
background-position: center;
background-size: contain;
background-repeat: no-repeat;
background-color: black;
transform: rotate(0deg);
}
</style>

<script>
document.onreadystatechange = function(e) {
if (document.readyState !== "complete") {
return;
}
let rotate = 0;
let stream = document.querySelector('#stream')
let w = stream.width;
let h = stream.height;
let resize = function() {
let [nt, nl, nh, nw] = [0,0,0,0];
if ((w > h) == (rotate%2)) {
nh = window.innerHeight;
nw = window.innerWidth;
} else {
nh = window.innerWidth;
nw = window.innerHeight;
}
if (rotate%2) {
// CSS is black magic to me. We have to offset the
// image when it's rotated. I have no idea why these
// offsets work - but empirically, they seem to do.
nl = (nh-nw)/2;
nt = (nw-nh)/2;
}
stream.style.height = nh + "px";
stream.style.width = nw + "px";
stream.style.top = nt + "px";
stream.style.left = nl + "px";
stream.style.transform = 'rotate('+rotate*90+'deg)';
};
resize();
stream.onclick = function(ev) {
rotate = (rotate+1)%4;
resize();
};
window.onresize = resize;
};
</script>
</head>
<body>
<div id="stream"></div>
</body>
</html>`
io.WriteString(w, idx)
file, err := ioutil.ReadFile("srvfb.html")
if err != nil {
log.Fatal(err)
}
io.WriteString(w, string(file))
}

func (h *handler) readImage(im *image.Gray16) error {
Expand Down
281 changes: 281 additions & 0 deletions srvfb.html
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