Keyboard pushes desktop so not cover, but when keyboard gone, want all desktop pulled back (pic included)

When you bring out the keyboard, and the cursor is in the area that the keyboard will soon occupy, the desktop will be pushed up so that the keyboard doesn’t cover the mouse and the area that you will input in.

When you retract the keyboard, there is a big black space left over that is the size of the keyboard.
http://i.imgur.com/ciZOSVF.png
I have to swipe down to put the entire desktop back in view.

Please consider pulling the desktop back down when the keyboard retracts.

Perhaps another option could be to have a button that centers the desktop, and makes sure that no black empty area is on the screen.
The “center-and-remove-black” button could be dragged into the row of button choices at the bottom for easy access.