FR: Optional pre-GTK4 port behavior on clicking tray icons

[postsolar]

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I really liked clicking on tray icons with LMB to open menus, as I use a touchpad so it's always physically easier to tap with one finger (= left click) than with two (= right click), especially when my left hand's fingers are on the keyboard but the thumb reaches the touchpad. Current single-click behavior is not that useful for me.

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Configurable behavior of tray module for LMB/RMB (or single vs double click).

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[JakeStanger]

I think an option to swap the buttons around is easy enough. The question is whether it's presented in the config as a "swap" option, or whether on_click_left, on _click_right and on_click_middle are used with some enum variant of valid actions.

I guess in the case of the latter that would allow it to fall back to running arbitrary commands as with the module-level options of the same name.

[postsolar]

@JakeStanger would you also be interested in on_click_left_double alongside other enum variants?

[postsolar]

I guess in the case of the latter that would allow it to fall back to running arbitrary commands as with the module-level options of the same name.

I imagine this wont be useful without also passing tray item's meta info (the name at least):

on_click_left = "if [ {item} = copyq ]; then notify-send 'copyq was left-clicked'; fi"