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Copy pathhtml_modified_dev.go
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html_modified_dev.go
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//go:build dev
package main
import (
"fmt"
"io"
)
var step1 = []byte(`<!doctype html>
<html lang="en">
<head>
`)
var devModeRest = []byte(`
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title></title>
<link id="css" rel="stylesheet" href="http://localhost:45071/out.css" />
</head>
<body>
<div id="app"></div>
<script>
window.wnjParams = {
position: 'bottom',
accent: 'neutral',
startHidden: true,
compactMode: true,
};
</script>
<script id="js" src="http://localhost:45071/out.js"></script>
<script>
let es = new EventSource('http://localhost:45071/esbuild')
es.addEventListener('change', (ev) => {
let change = JSON.parse(ev.data)
console.log('reload!', change)
if (change.added.length || change.removed.length) return
if (change.updated[0]?.endsWith('.css')) {
let css = document.getElementById('css')
let newCSS = document.createElement('link')
newCSS.id = 'css'
newCSS.rel = 'stylesheet'
newCSS.href = 'http://localhost:45071' + change.updated[0] + '?' + Math.random().toString(36).slice(2)
newCSS.onload = () => css.remove()
css.parentNode.appendChild(newCSS)
} else if (change.updated[0]?.endsWith('.js')) {
let js = document.getElementById('js')
let parent = js.parentNode
js.remove()
let newJS = document.createElement('script')
newJS.id = 'js'
newJS.src = 'http://localhost:45071' + change.updated[0] + '?' + Math.random().toString(36).slice(2)
window.destroySvelteApp()
parent.appendChild(newJS)
}
})
</script>
`)
func renderModifiedHTML(w io.Writer, params Params) {
w.Write(step1)
for _, param := range params {
fmt.Fprintf(w, " <meta name=\"%s\" content=\"%s\">\n", param[0], param[1])
}
w.Write(devModeRest)
}