vi-plugin/mode.lua at main · micro-garden/vi-plugin · GitHub

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local micro = import("micro")

local config = import("micro/config")
local plug_path = config.ConfigDir .. "/plug/?.lua"
if not package.path:find(plug_path, 1, true) then
	package.path = package.path .. ";" .. plug_path
end

local bell = require("vi/bell")
local combuf = require("vi/combuf")

-- vi modes
local MODE_COMMAND = 0
local MODE_INSERT = 1
local MODE_SEARCH = 2
local MODE_PROMPT = 3

-- states
local mode = MODE_INSERT

local function command()
	if mode == MODE_SEARCH then
		local cursor = micro.CurPane().Buf:GetActiveCursor()
		if cursor:HasSelection() then
			local start = cursor.CurSelection[1]
			cursor.X = start.X
			cursor.Y = start.Y
			cursor:ResetSelection()
		end
	end

	mode = MODE_COMMAND
end

local function insert()
	mode = MODE_INSERT
end

local function search()
	mode = MODE_SEARCH
end

local function prompt()
	mode = MODE_PROMPT
end

local function code()
	return mode
end

local function is_command()
	return mode == MODE_COMMAND
end

local function is_insert()
	return mode == MODE_INSERT
end

local function is_search()
	return mode == MODE_SEARCH
end

local function is_prompt()
	return mode == MODE_PROMPT
end

local function show()
	local mode_line
	if mode == MODE_COMMAND then
		mode_line = "vi command mode"
	elseif mode == MODE_INSERT then
		mode_line = "vi insert mode"
	elseif mode == MODE_SEARCH then
		mode_line = "vi search mode"
	elseif mode == MODE_PROMPT then
		mode_line = "vi prompt mode"
	else
		bell.program_error("invalid mode == " .. mode)
		return
	end
	bell.info(mode_line .. " [" .. combuf.get() .. "]")
end

-------------
-- Exports --
-------------

local M = {}

M.command = command
M.insert = insert
M.search = search
M.prompt = prompt
M.code = code
M.is_command = is_command
M.is_insert = is_insert
M.is_search = is_search
M.is_prompt = is_prompt
M.show = show

return M