Need "Show" before copying Subsonic API password

This happened when I tried to login through Clementine. If you select all star characters from the Subsonic API password field, and copy paste it, login will fail. Because I think I just copied the stars and not the actual char from the password.

Solutions I can think of :

• does not allow copying from unrevealed password and make it clear (like turn mouse into a "not allow" sign and/or hover pop-up saying "reveal first")
• add a "copy to clipboard" button