US Patent 7712051 Keyboard navigation in hierarchical user interfaces

Methods and apparatus, including computer program products, for navigating user interface elements of a computer program application. In one aspect, a method includes grouping user interface elements of an application into groups based on a hierarchical arrangement of the elements, detecting a navigation key press of a sibling or a parent navigation key, and if it is a sibling navigation key, shifting input focus to a next sibling group in the hierarchy, and if it is a parent navigation key, shifting input focus to a parent group in the hierarchy. In another aspect, a method for navigating editable cells of a table includes detecting a forward or a backward navigation key; if it is a forward navigation key, shifting input focus to a next editable cell of the table; and if it is a backward navigation key, shifting input focus to a previous editable cell of the table.