MyCrypto/common/utils/printElement.js

52 lines
1.4 KiB
JavaScript

// @flow
import React from 'react';
import { renderToString } from 'react-dom/server';
type PrintOptions = {
styles?: string,
printTimeout?: number,
popupFeatures?: Object
};
export default function(element: React.Element<*>, opts: PrintOptions = {}) {
const options = {
styles: '',
printTimeout: 500,
popupFeatures: {},
...opts
};
// Convert popupFeatures into a key=value,key=value string. See
// https://developer.mozilla.org/en-US/docs/Web/API/Window/open#Window_features
// for more information.
const featuresStr = Object.keys(options.popupFeatures)
.map(key => `${key}=${options.popupFeatures[key]}`)
.join(',');
const popup = window.open('about:blank', 'printWindow', featuresStr);
popup.document.open();
popup.document.write(`
<html>
<head>
<style>${options.styles}</style>
<script>
setTimeout(function() {
window.print();
}, ${options.printTimeout});
</script>
</head>
<body>
${renderToString(element)}
<script>
// FIXME consider if we REALLY want it
var width = document.body.children[0].offsetWidth;
var height = document.body.children[0].offsetHeight;
window.moveTo(0, 0);
// FIXME Chrome could be larger (i guess?)
window.resizeTo(width + 60, height + 60);
</script>
</body>
</html>
`);
}