Display control to implement a control bar

1. A display control device to implement a control bar on a display device for a communication session, the display control device comprising:

processing circuitry; and

memory including instructions that, when executed by the processing circuitry, cause the processing circuitry to perform operations comprising:

providing a user interface for the communication session for display on the display device, the user interface including a control bar and a session display area providing a view of the communication session;

detecting an increase in a number of users connected to the communication session; and

in response to the number of users connected to the communication session increasing beyond a predefined criterion:

updating the displayed user interface by applying a modification to the control bar by moving the control bar from a current location to one of several pre-defined locations on the display device or reducing a size of the control bar; and

expanding the session display area to occupy a space on the display device that was previously occupied by the control bar before the modification was applied to the control bar, wherein before the expanding of the session display area, the session display area includes a plurality of graphical representations that each represent different users connected to the communication session.

2. The display control device of claim 1 , wherein a predefined location of the several predefined locations shares an edge with the session display area.

3. The display control device of claim 1 , wherein the control bar is a unified control bar that includes communication controls and communication application controls.

4. The display control device of claim 1 , wherein the user interface includes a primary display area.

5. The display control device of claim 4 , wherein the primary display area is adjacent to the session display area.

6. The display control device of claim 5 , wherein the operations further comprise:

moving the session display area into the primary display area; and

moving the control bar to float over the primary display area in response to moving the session display area into the primary display area.

7. The display control device of claim 4 , wherein the operations further comprise:

receiving user input to float the session display area; and

floating the session display area in the primary display area.

8. A display control method to implement a control bar on a display device for a communication session, the display control method comprising:

providing a user interface for the communication session for display on the display device, the user interface including a control bar and a session display area providing a view of the communication session;

detecting an increase in a number of users connected to the communication session; and

in response to the number of users connected to the communication session increasing beyond a predefined criterion:

updating the displayed user interface by applying a modification to the control bar by moving the control bar from a current location to one of several pre-defined locations on the display device or reducing a size of the control bar; and

expanding the session display area to occupy a space on the display device that was previously occupied by the control bar before the modification was applied to the control bar, wherein before the expanding of the session display area, the session display area includes a plurality of graphical representations that each represent different users connected to the communication session.

9. The display control method of claim 8 , wherein a predefined location of the several predefined locations shares an edge with the session display area.

10. The display control method of claim 8 , wherein the control bar is a unified control bar that includes communication controls and communication application controls.

11. The display control method of claim 8 , wherein the user interface includes a primary display area.

12. The display control method of claim 11 , wherein the primary display area is adjacent to the session display area.

13. The display control method of claim 12 , further comprising:

moving the session display area into the primary display area; and

moving the control bar to float over the primary display area in response to moving the session display area into the primary display area.

14. The display control method of claim 11 , further comprising:

receiving user input to float the session display area; and

floating the session display area in the primary display area.

15. A display control system to implement a control bar on a display device for a communication session, the display control system comprising:

means for providing a user interface for the communication session for display on the display device, the user interface including a control bar and a session display area providing a view of the communication session;

means for detecting an increase in a number of users connected to the communication session;

means for determining that the number of user connected to the communication session increased beyond a predefined criterion;

means for updating the displayed user interface, in response to the number of users increasing beyond the predefined criterion, by applying a modification to the control bar by moving the control bar from a current location to one of several pre-defined locations on the display device or reducing a size of the control bar; and

means for expanding the session display area to occupy a space on the display device that was previously occupied by the control bar before the modification was applied to the control bar, wherein before the expanding of the session display area, the session display area includes a plurality of graphical representations that each represent different users connected to the communication session.

16. The display control system of claim 15 , wherein a predefined location of the several predefined locations shares an edge with the session display area.

17. The display control system of claim 15 , wherein the control bar is a unified control bar that includes communication controls and communication application controls.

18. The display control system of claim 15 , wherein the user interface includes a primary display area.

19. The display control system of claim 18 , wherein the primary display area is adjacent to the session display area.

20. The display control system of claim 19 , further comprising:

means for moving the session display area into the primary display area; and

means for moving the control bar to float over the primary display area in response to moving the session display area into the primary display area.