A method that may be performed at an electronic device that has one or more processors, memory, and a touch-sensitive display. The method includes receiving a user input, the user input is one or more input points applied to a touch-sensitive display that is integrated with the data processing system. The method further includes creating an event object in response to the user input and determining whether the event object invokes a scroll or gesture operation by distinguishing between the user input being a single input point applied to the touch-sensitive display that is interpreted as the scroll operation and the user input being more than one input point applied to the touch-sensitive display that are interpreted as the gesture operation.