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index.erb
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" lang="en">
<head>
<title>Asynchronous File Upload</title>
<meta name="charset" content="UTF-8" />
<link href="styles.css" rel="stylesheet" />
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js" type="text/javascript"></script>
<script src="jquery.binaryUpload.js" type="text/javascript"></script>
<script type="text/javascript">
function uploadedFiles() {
$.getJSON('/uploads', function(data) {
$('ol#uploaded_files li').remove()
$.each(data, function(k, v) {
$('ol#uploaded_files').append('<li>' + v.name + ' (' + v.size + ')</li>')
})
})
}
$(document).ready(function() {
$('#upload_data').binaryUpload({
url: $('#upload_data').parent('form').attr('action'),
onProgress: function(evt) {
if (evt.lengthComputable) {
var percentComplete = parseInt(Number((evt.loaded/evt.total) * 100).toFixed())
$('#progress').html(percentComplete + '%');
}
},
onStart: function(evt) {
$('#progress').html('0%');
},
onFinish: function(evt) {
$('#progress').html('100%');
uploadedFiles();
},
onError: function(evt) {
$('#progress').html('Error');
},
onBrowserIncompatible: function() {
$('#progress').html('Bad browser');
},
onRequestLoaded: function(xhr) {
if (xhr.status == 200)
$('#response').html(xhr.responseText);
},
fields: {
// Useful for Rails apps
'authenticity_token': 'fake-token',
'format': 'js'
}
});
uploadedFiles();
});
</script>
</head>
<body>
<form action="/upload" method="post">
<input id="upload_data" name="uploaded_file" type="file" />
</form>
<h1 id="progress">0%</h1>
Uploaded files
<ol id="uploaded_files">
</ol>
<div id="response"></div>
</body>
</html>