jQuery : simulating a click on a <input type=“file” /> doesn't work in Firefox? [duplicate]

Possible Duplicate:
In JavaScript can I make a “click” event fire programmatically for a file input element?

I've got a web page that looks like this

<html>
    <head>
        <title>File Upload Click Test</title>
        <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.3.2/jquery.min.js"></script>
    </head>
    <body>
        <div onclick="$('input[type=file]').click()" >CLICK SIMULATOR</div>
        <input type="file"></input>
    </body>
</html>

My goal is to have the div raise a click event on the file input, and this seems to work exactly as I'd expect in IE and Chrome, but doesn't work in Firefox (no file browser is opened when you click on the div).

Is there a way to get this working in FF?

Answers:

Answer

Is there a way to get this working in FF?

No, and it doesn't work in most common versions of IE, either. IE will open the dialog, but once you've selected a file with it the form won't actually submit.

Abandon hope. The only way to fake a file upload box is using the transparency technique, and that's really not recommended at all as browsers may lay out file upload boxes differently internally (or even provide a file upload control that doesn't include a Browse dialogue), making it highly likely you'll end up with an inoperable form.

Learn to love the grey file upload field, or use progressive enhancement to replace it with Flash where available.

Answer

Here's the workaround (FF). The HTML bit:

<label>Upload Business Logo</label>
<input type="file" name="logo" id="logo" class="file-upload" />
<input type="text" id="text-logo" class="text-upload" readonly/>
<input type="button" id="btn-logo" class="btn-upload" alt="" />

CSS for the input file type:

.file-upload { display:none; }

The jQuery bit:

//bind click
$('#btn-logo').click(function(event) {
  $('#logo').click();
});

//capture selected filename
$('#logo').change(function(click) {
  $('#text-logo').val(this.value);
});

Upon form submit, the hidden input file will upload the file. Hope this helps :)

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