How to use HTML5 File API with Unobtrusive JavaScript?
I would like to use the HTML5 File API with unobtrusive JavaScript. But I can only get it working by开发者_Go百科 calling JavaScript functions from the HTML. Is there any way to use the File API with unobtrusive JavaScript?
The File API is not supported by all browsers, but I have tried this in Google Chrome and in Firefox.
From the documentation this works:
<input type="file" id="input" onchange="handleFiles(this.files)">
And I have tried with this unobtrusive JavaScript that doesn't work:
window.onload = function() {
var input2 = document.getElementById('input2');
input2.addEventListener('onchange', handleFiles);
}
A complete example is below, and testable on jsFiddle.
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8"/>
<script>
window.onload = function() {
var input2 = document.getElementById('input2');
input2.addEventListener('onchange', handleFiles);
}
function handleFiles(e) {
alert('got files');
}
</script>
</head>
<body>
<h1>Test</h1>
<input type="file" id="input1" onchange="handleFiles(this.files)"/>
<input type="file" id="input2"/>
</body>
</html>
Try:
window.onload = function() {
var input2 = document.getElementById('input2');
input2.addEventListener('change', handleFiles,false);
// ^not onchange ^older firefox needs this
}
jsfiddle here
not onchange but
input2.addEventListener('change', handleFiles);
加载中,请稍侯......
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