Is it possible to map gd in normal mode to an action?

[fredrikaverpil]

I have this function which shows the fzf-lua picker for godoc.nvim:

function M.show(adapter, config, callback)
	local core = require("fzf-lua.core")
	local opts = {
		prompt = "Select item",
		fn_transform = function() end,
		debug = false,
		actions = {
			["default"] = function(selected, _)
				callback({ type = "show_documentation", choice = table.concat(selected, "") })
			end,
			-- TODO: fzf lua doesn't accept 'gd' as a keymap
			["ctrl-s"] = function(selected, _)
				callback({ type = "goto_definition", choice = table.concat(selected, "") })
			end,
		},
	}

	if config.picker.fzf_lua then
		opts = vim.tbl_deep_extend("force", opts, config.picker.fzf_lua)
	end

	core.fzf_exec(adapter.get_items(), opts)
end

Right now, ctrl-s will call an action. But I would've loved to instead have the ability to esc into normal mode and hit gd for this action. Is it at all possible, and if so - are there docs/examples on this somewhere?

[ibhagwan]

What’s preventing you from using vim.keyamp.set to map gd in normal mode to the show function?

[fredrikaverpil]

It's the callback I'd want to map to gd. I'm developing a plugin for other users, and I don't want to hijack their own gd keymap they likely have set up outside the fzf-lua picker. Do you mean I can somehow map gd (but only in the context of the fzf-lua picker) using vim.keymap.set?

You can see how I'm doing it here for Snacks and Telescope, and I figured it could be cool to offer the same capability but for users that prefer fzf-lua:

• Telescope: https://github.com/fredrikaverpil/godoc.nvim/pull/42/files?diff=unified#diff-8e26234adc148814dad9d231109ddb3e458b1a1840478ff8dcabfde57fcee23eR75-R77
• Snacks: https://github.com/fredrikaverpil/godoc.nvim/pull/42/files?diff=unified#diff-7259e7286109c0a422a5ae7c5a71350cf8382024fd89702f170c229b289a2f13R41-R43

[ibhagwan]

Oh I see what you mean, Due to fzf being a separate process it’s a bit more involved but you can set a valid fzf mapping/action (say F10, or whatever) to call the show function, then use fzf-luau’s winopts.on_create to create a mapping for gd that will send the keys (F10 in our case) using nvim_feedkeys.

[fredrikaverpil]

I ended up leaving the keymap ctrl-s for less complexity.