Add support for the DSR-OS operating status report #5300
Merged
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Summary of the Pull Request
This adds support for the VT escape sequence that requests the terminal's operating status. There is no attempt to actually verify the status of the app, though. We always return a response indicating a good operating condition (the same as most terminal emulators).
PR Checklist
Detailed Description of the Pull Request / Additional comments
This required an update to the
OutputStateMachineEngine
to accept theDSR-OS
type, since it only dispatches types that it recognises (I think that's unnecessary, but that's an issue for another day).The actual processing of the request is handled in the
AdaptDispatch
class, where it simply responds with a hard coded sequence (CSI 0 n
), indicating a good operating condition.Validation Steps Performed
I've added unit tests to confirm that the request is dispatched correctly, and the appropriate response is returned. I've also manually confirmed that the test of the Device Status Report in Vttest is now succeeding.