Make sure VT reports still work when DECARM is disabled#14216
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2 commits merged intomicrosoft:mainfrom Oct 14, 2022
Merged
Make sure VT reports still work when DECARM is disabled#142162 commits merged intomicrosoft:mainfrom
2 commits merged intomicrosoft:mainfrom
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src/terminal/input/terminalInput.cpp
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| // Check if this key matches the last recorded key code. | ||
| const auto matchingLastKeyPress = _lastVirtualKeyCode && _lastVirtualKeyCode.value() == keyEvent.GetVirtualKeyCode(); |
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cute std::optional trick: you don't need to check whether the optional is populated before doing a comparison; nullopt == T{} will always return false
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Oh wow, that's neat! Thank you!
lhecker
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The way
DECARMwas initially implemented, we checked for repeated keypresses by matching the last recorded virtual key code, and used a 0 key
code to indicate that no key was pressed. This caused the VT query
responses to fail, because they generated key events with a 0 key code,
and that would end up being detected as a repeated key that should be
suppressed.
This PR fixes that issue by using a
std::optionalto track the lastkey code, so if no key has been pressed we can represent that with
std::nullopt, and there's no way that can be confused with a genuinekey press.
The
DECARMmode was introduced in PR #13981.Validation Steps Performed
I've manually tested in Vttest to confirm that the query reports are now
working again, even when
DECARMis disabled. I've also checked thatDECARMitself it still working as expected.Closes #14208