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Device, Method, and Graphical User Interface for Scrolling a Multi-Section Document

  • US 20150020021A1
  • Filed: 01/07/2014
  • Published: 01/15/2015
  • Est. Priority Date: 09/25/2009
  • Status: Active Grant
First Claim
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1. A computer readable storage medium having stored therein instructions, which when executed by a multifunction device with a display and a touch-sensitive surface, cause the device to:

  • display on the display an electronic document that includes a plurality of document sections separated by respective logical structure boundaries;

    detect a gesture on the touch-sensitive surface, wherein an initial contact of the gesture is at a location that corresponds to a first location in the electronic document, the gesture having gesture parameters that include an initial velocity;

    when the initial velocity of the gesture exceeds a predefined speed threshold such that the gesture will scroll the electronic document more than one document section;

    initiate scrolling of the electronic document on the display at the initial velocity in accordance with an initial scrolling speed versus scrolling distance function;

    while scrolling the electronic document on the display, adjust the scrolling speed versus scrolling distance function so that when the scrolling speed becomes zero, a first logical structure boundary in the electronic document is displayed at a predefined location on the display; and

    scroll the electronic document in accordance with the adjusted scrolling speed versus scrolling distance function.

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