Stability region for a user interface

A display-device comprising:

• at least one processor;
• and
• data storage comprising logic executable by the at least one processor to:
• programmatically establish, at a default position with respect to the viewing window, a first stability region;
• detect change in physical orientation of the display-device;
• programmatically determine a movement of the first stability region with respect to the viewing window, wherein the movement is determined based on the detected change in physical orientation of the display-device;
• move the first stability region according to the determined movement with respect to the viewing window, wherein the first stability region remains less than a predefined non-zero distance from the default position during a first portion of the movement;
• during the first portion of the movement, move the viewing window with respect to the GUI at a first movement rate in accordance with the detected change in physical orientation;
• subsequent to the first portion of the movement, determine that the first stability region has thereby moved at least the predefined non-zero distance from the default position;
• in response to determining that the first stability region has moved at least the predefined non-zero distance from the default position, move the viewing window with respect to the GUI at a second movement rate in accordance with continued change in physical orientation of the display-device, wherein the second movement rate is faster than the first movement rate;
• detect a threshold reduction of the continued change in physical orientation of the display-device;
• and
• in response to detecting the threshold reduction, move the viewing window with respect to the GUI at the first movement rate in accordance with the continued change in physical orientation of the display-device.

A method for controlled movement of a viewing

• window across a graphical user-interface (GUI), the method comprising:
• causing a display-device to display the viewing window, wherein the viewing window shows a portion of the GUI;
• programmatically establishing in the viewing window (i) a reticle at a default position with respect to the viewing window and (ii) a first stability region, wherein the reticle at the default position is encompassed by the first stability region;
• detecting change in physical orientation of the display-device;
• programmatically determining a movement of the reticle with respect to the viewing window, wherein the movement is determined based on the detected change in physical orientation of the display-device;
• moving the reticle according to the determined movement with respect to the viewing window, wherein the reticle remains less than a predefined non-zero distance from the default position during a first portion of the movement;
• during the first potion of the movement, moving the viewing window with respect to the GUI at a first movement rate in accordance with the detected change in physical orientation of the display-device;
• subsequent to the first portion of the movement, determining that the reticle has thereby moved outside of the stability region;
• in response to determining that the reticle has moved outside of the stability region, moving the viewing window with respect to the GUI at a second movement rate in accordance with continued change in physical orientation of the display-device;
• detecting a threshold reduction of the continued change in physical orientation of the display-device;
• and
• in response to detecting the threshold reduction of the continued change in physical orientation of the display-device, moving the viewing window with respect to the GUI at the first movement rate in accordance with continued change in physical orientation of the display-device.

A non-transitory computer-readable medium having stored therein instructions executable by a processor to cause a display-device to perform functions for controlled movement of a viewing window across a graphical user-interface (GUI), the functions comprising:

• displaying the viewing window, wherein the viewing window defines a displayed portion of the GUI;
• programmatically establishing, at a default position with respect to the viewing window, a first stability region;
• detecting change in physical orientation of the display-device;
• programmatically determining a movement of the first stability region with respect to the viewing window, wherein the movement is determined based on the detected change in physical orientation of the display-device;
• moving the first stability region according to the determined movement with respect to the viewing window, wherein the first stability region remains less than a predefined non-zero distance from the default position during a first portion of the movement;
• during the first portion of the movement, moving the viewing window with respect to the GUI at a first movement rate in accordance with the detected change in physical orientation;
• subsequent to the first portion of the movement, determining that the first stability region has thereby moved at least the predefined non-zero distance from the default position;
• in response to determining that the first stability region has moved at least the predefined non-zero distance from the default position, moving the viewing window with respect to the GUI at a second movement rate in accordance with continued change in physical orientation of the display-device, wherein the second movement rate is faster than the first movement rate;
• detecting a threshold reduction of the continued change in physical orientation of the display-device;
• and
• in response to detecting the threshold reduction, moving the viewing window with respect to the GUI at the first movement rate in accordance with the continued change in physical orientation of the display-device.