[OPENMEETINGS-412] Spacebar and enter key cause keyboard remote control to fail while screen sharing

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Cannot Reproduce
• Affects Version/s: 2.0.0 Apache Incubator Release
• Fix Version/s: 3.1.2
• Component/s: Screen-sharing, UI
• Labels: ,input, keyboard remote screensharing
• Environment: Ubuntu 12.04, hosted on an Amazon EC2 Medium instance
• Assignee: Maxim Solodovnik
• Reporter: Andrew Sengul
• Created: 24/Aug/12 03:10
• Updated: 01/Feb/19 14:59
• Resolved: 13/Jul/16 06:01

Description

While a screen share session is running with remote control, if the user presses the spacebar or enter key the keyboard input will stop working for the remote-controlling user.

The reason for this appears to be that when space or enter are pressed, a new viewer session is started using the "startViewerSession" method in the screenSharingDialog.lzx file. I think the problem is on the side of the user sending the keyboard input, not the user who is sharing their screen, since when both the sender and receiver have a Laszlo Debugger running, error messages appear only on the sender's side when input is being sent.

I have searched through the source and have not found a place where this behavior for the space and enter keys is set. In build/openlaszlo/lps/components/base/componentmanager.lzx, there appears
to be a dispatchKeyDown method starting on line 62 that specifies some special method hooks for keyup/keydown events on space and enter (keycodes 13 and 32), but commenting out this code and recompiling the Laszlo app did nothing.