Complete drag and drop interface from web browser into dropbox and google drive to email

i have a project another freelancer couldn't complete. It's a drag and drop interface into folders that store the images in a database, then transferred into a dropbox account. The gui is already created, the general functionality works, your job is to: * use the url [login to view URL] to add the functionality to drag from browser window to browser window. * add the button functionality for the email to send the folder contents to open a auto generated webpage that displays the images. * add the button functiolaity for the settings to add the dropbox or google drive information, so open auth api intergration would be great.