Feature Request: Block key press passing

I will explain my use case to make the feature request clear.

I remapped the keybindings in order to avoid using the Ctrl and Alt keys for all actions. So the default mode is locked, by pressing Ctrl + A I go to normal mode and from there I can press just one letter to go to the different modes:

p pane
t tab
...

When I am not in locked mode and I press a key with no action bound to it, the key press is sent to the shell. This is a problem since some key presses will go to the shell and some will go to zellij, making it unclear to which program I am sending key presses to.

I would like an option to avoid sending not mapped key presses to the shell when I am not in locked mode.

Here is an idea on how the configuration file might look like:

keybinds clear-defaults=true {
    locked {
        bind "Ctrl A" { SwitchToMode "normal"; }
    }

    shared_except "locked" {
        bind "Esc" { SwitchToMode "locked"; }
    }

    normal catch-unbind=true { // <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
        // Modes
        bind "r" { SwitchToMode "resize"; }
        bind "p" { SwitchToMode "pane"; }
        bind "m" { SwitchToMode "move"; }
        bind "t" { SwitchToMode "tab"; }
        bind "s" { SwitchToMode "scroll"; }
        bind "/" { SwitchToMode "entersearch"; SearchInput 0; }

        // Layout
        bind "]" { NextSwapLayout; }
        bind "[" { PreviousSwapLayout; }

        bind "d" { Detach; }
        bind "Q" { Quit; }
    }
}

I understand that my use case may be limited, but it would be cool if this feature could be implemented in the future.

zellij-org / zellij

Feature Request: Block key press passing #2452