Abstract: Methods and apparatus for automatically zooming content in an active region are provided. Embodiments of the system allow a user of a computing device to share content on a display element with a portable computing device. The portable computing device is configured to display the shared content on its display screen. By doing so, a plurality of factors can be identified to trigger automatic zooming, and a relevance value for determining automatic zooming is determined. Upon determining the relevance value for automatic zooming, the portable computing device can display automatically zoomed region on its screen. The automatically zoomed region can include zoomed content located in an active region, and the rest of the region outside of the active region can be zoomed out or disappeared from the screen.

Abstract: According to one aspect, a method includes identifying a shared window, the shared window being at least partially rendered on a screen of a device and having a first border that defines an edge of the shared window. The method also includes determining if scrolling beyond the first border is detected and, if it is determined that scrolling beyond the first border is detected, determining whether bounding back to the shared window is indicated. Finally, the method includes bounding back to the shared window if it is determined that bounding back to the shared window is indicated, and allowing the scrolling beyond the first border to continue if it is determined that bounding back to the shared window is not indicated.