Patent ID: 8842082

Claim:
An electronic device, configured to operate in a navigation-preferred mode at some times and in an annotation-preferred mode distinct from the navigation-preferred mode at other times, comprising: a display and a touch-sensitive surface; one or more processors; memory; and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors, the one or more programs including instructions for: displaying an electronic book on the display; detecting a first gesture on the touch-sensitive surface having a first gesture type; and in response to detecting the first gesture: in accordance with a determination that the device is in the navigation-preferred mode, performing a navigation operation on the electronic book; and in accordance with a determination that the device is in the annotation-preferred mode, performing a text annotation operation on the electronic book distinct from the navigation operation on the electronic book; detecting a second gesture on the touch-sensitive surface having a second gesture type distinct from the first gesture type; and in response to detecting the second gesture: in accordance with a determination that the device is in the navigation-preferred mode, performing a text annotation operation on the electronic book; and in accordance with a determination that the device is in the annotation-preferred mode, performing a navigation operation on the electronic book.