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<!DOCTYPE html>
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<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>World Heritage Grimeton Morse Encoder</title>
<meta name="description" content="">
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<link rel="stylesheet" href="css/normalize.css">
<link rel="stylesheet" href="http://yui.yahooapis.com/pure/0.5.0/pure-min.css">
<link rel="stylesheet" href="css/main.css">
<script src="js/vendor/modernizr-2.6.2.min.js"></script>
</head>
<body>
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<h1>World Heritage Grimeton Morse Encoder</h1>
<p>Use Grimeton Radio Station’s encoder to translate a message into Morse code. Enter your message, then click either "Translate" or "Play". You can also vary the speed of words per minute (WPM).</p>
<p><strong>Note that your computer's speakers must be turned on to listen to the code. </strong></p>
<form onsubmit="return play()" class="pure-form pure-form-stacked">
<fieldset>
<label for="input">Enter a message</label>
<textarea name="input" id="input"></textarea>
<label for="input">Result shown here</label>
<textarea name="output" id="output" readonly="true"></textarea>
<label for="input">Speed (WPM)</label>
<input name="wpm" id="wpm" type="number" value="13"/>
<button type="button" onclick="translate();" class="pure-button">Translate</button>
<button type="submit" class="pure-button pure-button-primary">Play</button>
<button type="button" onclick="stop();" class="pure-button">Stop</button>
</fieldset>
</form>
<script src="js/riffwave.js"></script>
<script src="js/morse.js"></script>
<script>
var morseAudio;
function play() {
translate();
var wpm = parseInt(document.getElementById("wpm").value);
if (typeof wpm === 'number' && wpm % 1 == 0 && wpm > 0) {
morse.setWPM(wpm);
}
var sentence = document.getElementById("input").value;
var data = morse.sentenceToMorseData(sentence);
var morseWave = new RIFFWAVE(data);
morseAudio = new Audio(morseWave.dataURI);
morseAudio.play();
return false;
}
function translate() {
var sentence = document.getElementById("input").value;
document.getElementById("output").value = morse.sentenceToMorseString(sentence);
}
function stop() {
if (morseAudio) morseAudio.pause();
}
</script>
</body>
</html>