Programmatically Open Upload File Dialog In Chrome

I have input[type=file] with log-in form on it. So after user logged in - file upload dialog instantly opened. In all browsers I need (FF, IE10+) except Google Chrome, this call wo

Solution 1:

This is not allowed due to security reasons. By the way, even in Internet Explorer (the dialog will be shown but once you select a file, the file won't be submitted).