html-css-js/html/keyboard-layout-switch/1.html at master · denisde4ev/html-css-js · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>Carpalx Keyboard Mapping</title>

	<meta
	name=viewport
	content=width=device-width,initial-scale=1>
	<link
	media=(prefers-color-scheme:dark
	href=data:,*{color-scheme:dark
	rel=stylesheet>
	<style>*{padding:0;margin:0;box-sizing:border-box;}</style>
</head>
<body>

<textarea
style="width:100%;height:97vh"
id="carpalxTextarea"
autofocus></textarea>


	<script>

var qwerty = `\
QWERTYUIOP
ASDFGHJKL
ZXCVBNM`;

var carpalx = `\
qgmlwyfub;[]\\
dstnriaeoh'
zxcvjkp,./`;

var carpalxBg = `\
чгмлшъфуб;ящ\\
дстнриаеох'
зжцвйкп,./`;

// TODO: key
// '`' -> 'ю'
// ';'-> 'х'
// ;


var carpalxArray = carpalxBg.split('\n').map(row => row.split(''));
var qwertyArray = qwerty.split('\n').map(row => row.split(''));


var keyMapping = {};
for (let i = 0; i < qwertyArray.length; i++) {
	for (let j = 0; j < qwertyArray[i].length; j++) {
		let qwertyKey;
		qwertyKey = `Key${qwertyArray[i][j]}`;
		keyMapping[qwertyKey] = carpalxArray[i][j];
	}
}


// Get the textarea element
var textarea = document.getElementById('carpalxTextarea');

// Listen for keydown events
textarea.addEventListener('keydown', (event) => {
	var key = event.code;

	if (!key.startsWith('Key')) return;
	window.eevent= event;
	if (event.ctrlKey || event.metaKey || event.altKey) return;

	var carpalxKey = keyMapping[key]; // Use QWERTY key if not found in mapping

	if (!carpalxKey) {
		console.error('unexpected key', key);
		return;
	}

	if (event.shiftKey) {
		carpalxKey = carpalxKey.toUpperCase();
	}

	textarea.value += carpalxKey;

	if (carpalxKey != null) event.preventDefault(); // Prevent default behavior (e.g., typing in the textarea)
});

	</script>
</body>
</html>