Odd behaviour with modifiers

[rafaelpirolla]

I'm using Karabiner Elements EventViewer to check this behaviour. From base use a macro with "$toggleLayer fn" to switch to another layer. Use a key with two modifiers and the events are reported as: type:down HID usage: 7,227 name:{"key_code":"left_command"} misc:flags left_command type:down HID usage: 7,226 name:{"key_code":"left_option"} misc:flags left_command,left_option type:down HID usage: 7,79 name:{"key_code":"right_arrow"} misc:flags left_command,left_option type:up HID usage: 7,79 name:{"key_code":"right_arrow"} misc:flags left_command,left_option

And then only when I switch back to another layer with $toggleLayer is that I see the up events: type:up HID usage: 7,227 name:{"key_code":"left_command"} misc:flags left_option type:up HID usage: 7,226 name:{"key_code":"left_option"} misc:

It could be that some other key would trigger the up events but I didn't test too many options. I think this would suffice to trace a bug or misconfiguration on my part.

[kareltucek]

Looks like an official feature called "sticky modifiers". Its purpose is to make shortcuts like "alt+tab" work when they are bound in non-base layers. However, it should fire only in "held" layers.

I will look into it when revising the layer switching code. Unless you have such bindings, quick solution is to set stickyMods never, (e.g., in a macro named $onInit in order to make the config persistent).

[rafaelpirolla]

It would work indeed, I've tested. But I'm using toggleLayer to switch into layers.

[kareltucek]

It would work indeed, I've tested. But I'm using toggleLayer to switch into layers.

I don't understand. Do you mean that disabling sticky mods does not help when you use toggleLayer command?

[kareltucek]

I have retested the scenarios and stickies seem to work as expected.

Closing, but feel free to followup if anything is unclear or does not work as expected.