Methods, systems and computer program products for controlling events associated with user interface elements by capturing user intent based on pointer movements

• US 6,583,781 B1
• Filed: 10/17/2000
• Issued: 06/24/2003
• Est. Priority Date: 10/17/2000
• Status: Active Grant

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Joshi, Niraj P., Scanlon, John L., Molander, Mark Edward
• Primary Examiner(s): Shalwala, Bipin
• Assistant Examiner(s): Shapiro, Leonid
• Application Number:
  US09/690,205
• Time in Patent Office: 980 Days
• Field of Search: 345/156-163, 345/167, 345/856-857, 345/860, 345/862, 340/706, 340/709-711, 340/825.15
• US Class Current: 345/156
• CPC Class Codes: G06F 3/038 Control and interface arrangements therefor, e.g. drivers or device-embedded control circuitry
• CPC Class Codes: G06F 3/04883 for inputting data by handwriting, e.g. gesture or text

Abstract

Methods, systems and computer program products are provide which control events associated with an element of a user interface by determining a characteristic(s) of pointer movement of a pointing device and adjusting a condition(s) for triggering an event associated with the element based on the determined characteristic of pointer movement. The triggering of the event is controlled utilizing the adjusted condition. By determining characteristics of pointer movement, a user'"'"'s intent may be inferred from that pointer movement and, based on the inferred intent, the conditions for triggering of events may be adjusted consistent with such inferred intent.

Claims

1. A method of controlling events associated with an element of a user interface, the method comprising the steps of:

determining if a direction of movement of a pointer is away from the element;

determining a speed of the pointer;

determining an acceleration of the pointer; and

increasing a delay associated with triggering the at least one event if the direction of movement is away from the element, the speed is below a predefined threshold and the acceleration of the pointer indicates that the pointer is decelerating.

2. A method according to claim 1, wherein the at least one event comprises closing a graphic user interface display window and wherein the element comprises a close selection button.

3. A method according to claim 1, wherein at least one of the step of determining a direction of movement of the pointer, determining a speed of the pointer and determining an acceleration of the pointer are only carried out if one or more of the direction of movement of the pointer is away from the element, the speed of the pointer is below the predefined threshold and the acceleration of the pointer is decelerating.

4. A method according to claim 3, wherein the step of determining a speed of the pointer is only carried out if the direction of movement of the pointer is away from the element and the step of determining an acceleration of the pointer is only carried out if the speed of the pointer is below the predefined threshold.

5. A method according to claim 3, further comprising the steps of:

defining a region of a display associated with the element; and

determining if the pointer is within the defined region; and

wherein the steps of determining a direction of movement of the pointer, determining a speed of the pointer and determining an acceleration of the pointer are only carried out if the pointer is within the defined region.

6. A method of controlling events associated with an element of a user interface, the method comprising the steps of:

determining at least one characteristic of pointer movement of a pointing device;

evaluating the characteristic of pointer movement based on a predefined evaluation criteria;

adjusting at least one condition for triggering at least one event associated with the element if the predefined evaluation criteria is met;

controlling the triggering of the at least one event utilizing the adjusted condition;

tracking pointer movement so as to establish a history of pointer movement; and

revising the predefined evaluation criteria based on the history of pointer movement so as to dynamically update the predefined evaluation criteria to reflect the history of pointer movement.

7. A method of controlling events associated with an element of a user interface, the method comprising the steps of:

determining at least one characteristic of pointer movement of a pointing device;

evaluating the characteristic of pointer movement based on a predefined evaluation criteria;

adjusting at least one condition for triggering at least one event associated with the element if the predefined evaluation criteria is met;

controlling the triggering of the at least one event utilizing the adjusted condition; and

adjusting the predefined evaluation criteria based on characteristics of the user interface element.

8. A method according to claim 7, wherein the characteristics of the user interface element comprise at least one of size of the user interface element, shape of the user interface element and location of the user interface element on the display.

9. A system for controlling events associated with an element of a user interface, comprising:

means for determining if a direction of movement of a pointer is away from the element;

means for determining a speed of the pointer;

means for determining an acceleration of the pointer; and

means for increasing a delay associated with triggering at least one event if the direction of movement is away from the element, the speed is below a predefined threshold and the acceleration of the pointer indicates that the pointer is decelerating.

10. A system according to claim 9, wherein the at least one event comprises closing a graphic user interface display window and wherein the element comprises a close selection button.

11. A system according to claim 9, wherein at least one of the means for determining a direction of movement of the pointer, means for determining a speed of the pointer and means for determining an acceleration of the pointer only determine a direction, speed or acceleration if one or more of the direction of movement of the pointer is away from the element, the speed of the pointer is below the predefined threshold and the acceleration of the pointer is decelerating.

12. A system according to claim 11, wherein the means for determining a speed of the pointer is only determines a speed if the direction of movement of the pointer is away from the element and the means for determining an acceleration of the pointer only determines an acceleration if the speed of the pointer is below the predefined threshold.

13. A system according to claim 11, further comprising:

means for defining a region of a display associated with the element; and

means for determining if the pointer is within the defined region; and

wherein the means for determining a direction of movement of the pointer, means for determining a speed of the pointer and means for determining an acceleration of the pointer only determine a direction, speed or acceleration if the pointer is within the defined region.

14. A system for controlling events associated with an element of a user interface, comprising:

means for determining at least one characteristic of pointer movement of a pointing device;

means for evaluating the characteristic of pointer movement based on a predefined evaluation criteria;

means for adjusting at least one condition for triggering at least one event associated with the element if the predefined evaluation criteria is met;

means for controlling the triggering of the at least one event utilizing the adjusted condition;

means for tracking pointer movement so as to establish a history of pointer movement; and

means for revising the predefined evaluation criteria based on the history of pointer movement so as to dynamically update the predefined evaluation criteria to reflect the history of pointer movement.

15. A system for controlling events associated with an element of a user interface, comprising:

means for determining at least one characteristic of pointer movement of a pointing device;

means for evaluating the characteristic of pointer movement based on a predefined evaluation criteria;

means for adjusting at least one condition for triggering at least one event associated with the element if the predefined evaluation criteria is met;

means for controlling the triggering of the at least one event utilizing the adjusted condition; and

means for adjusting the predefined evaluation criteria based on characteristics of the user interface element.

16. A system according to claim 15, wherein the characteristics of the user interface element comprise at least one of size of the user interface element, shape of the user interface element and location of the user interface element on the display.

17. A computer program product for controlling events associated with an element of a user interface, comprising:

a computer readable medium having computer readable program code embodied therein, the computer readable program code comprising;

computer readable program code which determines if a direction of movement of a pointer is away from the element;

computer readable program code which determines a speed of the pointer;

computer readable program code which determines an acceleration of the pointer; and

computer readable program code which increases a delay associated with triggering at least one event if the direction of movement is away from the element, the speed is below a predefined threshold and the acceleration of the pointer indicates that the pointer is decelerating.

18. A computer program product according to claim 17, wherein the at least one event comprises closing a graphic user interface display window and wherein the element comprises a close selection button.

19. A computer program product according to claim 17, wherein at least one of the computer readable program code which determines a direction of movement of the pointer, computer readable program code which determines a speed of the pointer and computer readable program code which determines an acceleration of the pointer only determine a direction, speed or acceleration if one or more of the direction of movement of the pointer is away from the element, the speed of the pointer is below the predefined threshold and the acceleration of the pointer is decelerating.

20. A computer program product according to claim 19, wherein the computer readable program code which determines a speed of the pointer is only determines a speed if the direction of movement of the pointer is away from the element and the computer readable program code which determines an acceleration of the pointer only determines an acceleration if the speed of the pointer is below the predefined threshold.

21. A computer program product according to claim 19, further comprising:

computer readable program code which defines a region of a display associated with the element; and

computer readable program code which determines if the pointer is within the defined region; and

wherein the computer readable program code which determines a direction of movement of the pointer, computer readable program code which determines a speed of the pointer and computer readable program code which determines an acceleration of the pointer only determine a direction, speed or acceleration if the pointer is within the defined region.

22. A computer program product for controlling events associated with an element of a user interface, comprising:

a computer readable medium having computer readable program code embodied therein, the computer readable program code comprising;

computer readable program code which determines at least one characteristic of pointer movement of a pointing device;

computer readable program code which evaluates the characteristic of pointer movement based on a predefined evaluation criteria;

computer readable program code which adjusts at least one condition for triggering at least one event associated with the element if the predetermined evaluation criteria is met;

computer readable program code which controls the triggering of the at least one event utilizing the adjusted condition;

computer readable program code which tracks pointer movement so as to establish a history of pointer movement; and

computer readable program code which revises the predefined evaluation criteria based on the history of pointer movement so as to dynamically update the predefined evaluation criteria to reflect the history of pointer movement.

23. A computer program product for controlling events associated with an element of a user interface, comprising:

a computer readable medium having computer readable program code embodied therein, the computer readable program code comprising;

computer readable program code which determines at least one characteristic of pointer movement of a pointing device;

computer readable program code which evaluates the characteristic of pointer movement based on a predefined evaluation criteria;

computer readable program code which adjusts at least one condition for triggering at least one event associated with the element if the predetermined evaluation criteria is met;

computer readable program code which controls the triggering of the at least one event utilizing the adjusted condition; and

computer readable program code which adjusts the predefined evaluation criteria based on characteristics of the user interface element.

24. A computer program product according to claim 23, wherein the characteristics of the user interface element comprise at least one of size of the user interface element, shape of the user interface element and location of the user interface element on the display.