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Enabled downloading log as a CSV #132

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Enabled downloading log as a CSV #132

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16 changes: 16 additions & 0 deletions examples/index.html
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Original file line number Diff line number Diff line change
Expand Up @@ -55,6 +55,7 @@ <h1>WebJack Demo</h1>
<p>
<button class="btn-baud">Change baud</button>
<button class="btn-freq">Change frequencies</button>
<button class="btn-dl">Download</button>
</p>

<script>
Expand Down Expand Up @@ -169,6 +170,21 @@ <h1>WebJack Demo</h1>
var baud = prompt('Enter a baud (speed) that is a factor of 44100 and under 1225',441);
if (baud) connection.setBaud(baud);
});
$('.btn-dl').click(function() {
// unicode and data type header for download href
var csv = "data:text/csv;charset=utf-8," + connection.history.received.join('\n');
// encode received data for utf8
var encodedUri = encodeURI(csv);

// hidden link created for HTML download attribute
var link = document.createElement("a");
link.setAttribute("href", encodedUri);
link.setAttribute("download", new Date().toJSON().slice(0,10).replace(/-/g,'/')+'.csv');
document.body.appendChild(link); // Required for FF
link.click();
// removed hidden html link for cleanliness
document.body.removeChild(link);
});

</script>
<script src="fft/sketch.js"></script>
Expand Down