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Figure I.15. Full-screen mode in Firefox Android version, using device orientation to control Wilson
So how do you take advantage of the Device Orientation API? It all depends on the devi-
ceorientation event. The following listing adapts the now inaccurately named fol-
low_mouse() function to listen to this event. For this listing to work, you'll need a
device with a built-in accelerometer such as an Android or iOS phone or tablet.
Listing I.26. Update the follow_mouse() function to use device-orientation data
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