How to detect directory select capability in browsers?

file-upload, html, html5-filesystem

Solution

Maybe this is a solution for your problem:

function isInputDirSupported() {
    var tmpInput = document.createElement('input');
    if ('webkitdirectory' in tmpInput 
        || 'mozdirectory' in tmpInput 
        || 'odirectory' in tmpInput 
        || 'msdirectory' in tmpInput 
        || 'directory' in tmpInput) return true;

    return false;
}

Problem

I am trying to find out if browser has ability to select folders, not just multiple files. Current Chrome supports this (example: http://html5-demos.appspot.com/static/html5storage/demos/upload_directory/index.html). Apparently, it works in Chrome when `<input type="file" />` has `webkitdirectory` attribute. But how can I test if browser is actually capable of selecting folders and iterating through files?

Original source

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