Drag&Drop from Thunar (XFCE file manager) to Firefox results in empty FileList

[Guigoz]

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Hi,

The drag & drop does not seems to works with FF, but it still works on Chrome. I can reproduce the problem on your demo page : http://blueimp.github.com/jQuery-File-Upload/

I use FF version 16.0.2

Thanks for your plugin! Guillaume

[blueimp]

Sorry, but I couldn't reproduce any problems with Drag&Drop on Firefox 16.0.2, tested on both OSX 10.8 and Windows XP.

Can you provide a more detailed error report? Error console output? Operating system version? Kind of files you tried to drag&drop?

[Guigoz]

Hi,

Sorry, I've not provided enough details!

I'm using linux (debian 6.0.6 ), I havn't tried on windows when I wrote this issue but it works on windows.

There are no errors in the console.

I tried with a simple .txt file. It works on Chrome with this file but not on FF.

[blueimp]

Which filemanager did you use on Debian? Gnome's Nautilus? KDE's Konqueror?

[Guigoz]

My window manager is XFCE and my filemanager is Thunar. I'm just draging the file from my desktop to FF.

[blueimp]

OK, this seems to be a bug in Firefox, since the following (pure) JavaScript code results in an empty FileList reported in the console when dropping files dragged from Thunar:

document.addEventListener('dragover', function (e) {
    e.preventDefault();
}, false);
document.addEventListener('drop', function (e) {
    e.preventDefault();
    console.log(e.dataTransfer.files.length);
}, false);​

You can try it out on JSFiddle: http://jsfiddle.net/wpT4q/1/

There is also a related entry in the Firefox bug tracker: https://bugzilla.mozilla.org/show_bug.cgi?id=609284

[Guigoz]

Thank you for your (very fast) answer! And sorry for the waste of time, I didn't thought it could come from my system.

I'll watch the bug tracker entry.

Closing this issue!

Greetings, Guillaume.

[blueimp]

No worries. I marked the issue entry as browser bug, so I think we can keep it open for other users stumbling on this issue. If the Firefox bug gets closed, we can close it too.

[tnodir]

FireFox 17.0: dataTransfer.files == null Opera 12.11: dataTransfer.files.length == 0

But test (http://jsfiddle.net/wpT4q/1/) prints 1 to console in both browsers.

OS is Windows 7.