Currently any mouse action ends the screensaver.

Ben and I have experimented with adding listening for mouse events in NowPlaying and consuming them, with the idea that the Button widget listeners would still pick up the mouse_down event.

In this design, the only mouse way to end the now playing screensaver would be to click on the top back button. Clicks to the player controls would not return, since that would be jarring)

This might create odd behavior if the user was already on the non-SS now playing window, since clicking back takes you to a screen that is identical to the screen you are on, making it appear that the click didn't work. This could be dealt with be never going to the Now Playing SS if you already are on the NP window).

In pursuing this, we found that the NP Applet Window listener consumed the mouse event before the button listener could get at it. We found this behavior odd (expected the Button to be first in the listening chain). To workaround, we tried not consuming MOUSE_PRESS. This worked and the button listener gets called, but the SS was still going away (even though the button callback returned EVENT_CONSUME)