Mario for Adding Context Menu to Kitty

Kitty and pass_selection_to_program

Users of kitty terminal emulator can select any text in kitty and pass that text as an argument to any program with a keyboard shortcut in kitty.conf:

map kitty_mod+alt+w pass_selection_to_program wiki

I.e. hitting kitty_mod+alt+w keyboard shortcut invokes wiki shown below with the selected text as argument:

#!/bin/sh
sr -t wikipedia "$@";;

wiki displays wikipedia entry about the selected data (using surfraw(1), sr).

However this usage pattern demands users to create and to memorize more keyboard shortcuts for different programs to take advantage of kitty's pass_selection_to_program feature.

Adding Context Menu to Kitty with Mario

Mario extends kitty's pass_selection_to_program feature:

user selects text with a left-click
user can hit either 'appliction menu' key on keyboard or click on a thumb button of the mouse to get a menu of programs
user makes a choice from the menu (with either mouse or keyboard)
the chosen program runs on the selected text

Installation Prerequisites

Install rofi menu system
Install xbindkeys to map mouse buttons to a keyboard key
Copy mario to anywhere in $PATH (and don't forget to chmod +x mario);
Copy .mario.menu to $HOME and edit it to suit your needs.
Configure xbindkeys and kitty. In this example we use 'application menu' to invoke the menu:

xbindkeys:

"xvkbd -text '\[Menu]'"
    m:0x0 + b:9   (mouse)
"xvkbd -text '\[Menu]'"
    m:0x0 + b:8   (mouse)

kitty:

# application menu showkey -a: ^[[29~ glfw key:348 native_code:0xff67
map 0xff67 pass_selection_to_program mario

Notes

Add xbindkeys to initialization file of desktop session.
Change 'application Menu' and thumb buttons (8/9) of mouse to something else as you see fit.

Integrating with Mario

For example, wiki above can be rewritten as

#!/bin/sh
if [ -t 0 ]; then
  sr -t wikipedia "$@";
else
  kitty @ launch --no-response sr -t wikipedia "$@";
fi

wiki opens a new window and displays result there when it is run from mario i.e. non-interactively. When wiki is run from a usual kitty window, it displays the result in the window.

Look and Feel of the Menu

See rofi's documentation for more details.