公开(公告)号：US06791587B1

公开(公告)日：2004-09-14

申请号：US09692388

申请日：2000-10-19

申请人： Joseph William Bamford ,  David John Clark ,  Andrew John Smith

发明人： Joseph William Bamford ,  David John Clark ,  Andrew John Smith

IPC分类号： G09G500

CPC分类号： G06F17/30716 ,  G06F17/30961 ,  G06F17/30994

摘要： A navigation manager component cooperable with a user interface renderer is described. The navigation manager manages one or more navigation units and maintains a navigation unit cursor. Each navigation unit is associated with another navigation unit managed by the same navigation manager. The navigation manager provides a range of navigation services, which operate upon the navigation unit cursor. These services include a service to navigate forwards and a service to navigate backwards. These services take into account the associations between navigation units in order to determine the correct sequence of navigation units for forwards and backwards navigation. The services also determine whether the items represented by each navigation unit include eligible items or items for which data entry is incomplete. In this way, navigation units for which all the items represented by the navigation unit are ineligible can be passed over by the navigation services, to that they never become current.

摘要翻译： 描述与用户界面渲染器协作的导航管理器组件。 导航管理器管理一个或多个导航单元并维护导航单元光标。 每个导航单元与由相同导航管理器管理的另一导航单元相关联。 导航管理器提供一系列导航服务，它们可以在导航单元光标上操作。 这些服务包括向前导航的服务和向后导航的服务。 这些服务考虑到导航单元之间的关联，以便确定正向和反向导航的导航单元的正确顺序。 这些服务还确定每个导航单元所表示的项目是否包括符合条件的项目或数据输入不完整的项目。 以这种方式，由导航单元表示的所有项目不符合要求的导航单元可以被导航服务传递给它们，从而它们不会变为当前。