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Add mini-live editing to example.html

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This commit is contained in:
Sidharth Vinod
2023-09-18 23:29:27 +05:30
parent 136f1c50e7
commit 0ff3ba30b7
1 changed files with 37 additions and 11 deletions
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46
demos/dev/example.html
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@@ -3,10 +3,23 @@
<html>
<head>
<title>Mermaid development page</title>
<style>
.container {
display: flex;
flex-direction: row;
}
#code {
max-width: 30vw;
width: 30vw;
}
#dynamicDiagram {
flex: 1;
}
</style>
</head>
<body>
<pre class="mermaid">info</pre>
<pre id="diagram" class="mermaid">
graph TB
a --> b
@@ -15,22 +28,35 @@ graph TB
c --> d
</pre>
<hr />
Type code to view diagram:
<div class="container">
<textarea name="code" id="code" cols="30" rows="10"></textarea>
<div id="dynamicDiagram"></div>
</div>
<pre class="mermaid">info</pre>
<script type="module">
import mermaid from '/mermaid.esm.mjs';
mermaid.parseError = function (err, hash) {
console.error('Mermaid error: ', err);
};
async function render(str) {
const { svg } = await mermaid.render('dynamic', str);
document.getElementById('dynamicDiagram').innerHTML = svg;
}
const storeKey = window.location.pathname;
const code = localStorage.getItem(storeKey);
if (code) {
document.getElementById('code').value = code;
await render(code);
}
mermaid.initialize({
startOnLoad: true,
logLevel: 0,
});
const value = `graph TD\nHello --> World`;
const el = document.getElementById('dynamicDiagram');
const { svg } = await mermaid.render('dd', value);
console.log(svg);
el.innerHTML = svg;
document.getElementById('code').addEventListener('input', async (e) => {
const value = e.target.value;
localStorage.setItem(storeKey, value);
await render(value);
});
</script>
<script src="/dev/reload.js"></script>