macOS IME Cursor

init.lua

-- 설치 방법:
-- 1. Hammerspoon 설치 (https://www.hammerspoon.org/)
-- 2. 아래 내용을 ~/.hammerspoon/init.lua 으로 저장
--
-- 참고: 윈도우용 IME Cursor (https://forest.watch.impress.co.jp/library/software/imecursor/)

local indicatorCircle = nil
local followTimer = nil
local xoff = 15
local yoff = 4
local green = { red = 0.2, green = 1.0, blue = 0.2, alpha = 1.0 }

function showCircleIndicator(color) -- 기존 원 삭제
    if indicatorCircle and type(indicatorCircle.delete) == "function" then
        indicatorCircle:delete()
        indicatorCircle = nil
    end

    local cursor = hs.mouse.absolutePosition()
    local size = 12  -- 원 크기

    local frame = { x = cursor.x + xoff, y = cursor.y + yoff, w = size, h = size }

    indicatorCircle = hs.drawing.circle(frame)
    indicatorCircle:setFillColor(color)
    indicatorCircle:setStrokeColor({red=0, green=0, blue=0, alpha=1})
    indicatorCircle:setStrokeWidth(1)
    indicatorCircle:setLevel(hs.drawing.windowLevels.overlay)
    indicatorCircle:show()

    -- 커서 따라다니게
    if followTimer then followTimer:stop() end
    followTimer = hs.timer.doEvery(0.01, function()
        if indicatorCircle then
            local cursor = hs.mouse.absolutePosition()
            indicatorCircle:setFrame({
                x = cursor.x + xoff,
                y = cursor.y + yoff,
                w = size,
                h = size
            })
        end
    end)
end

-- 입력기 변경 감지
hs.keycodes.inputSourceChanged(function()
    local source = hs.keycodes.currentSourceID()
    if source:find("com.apple.inputmethod.Korean") or source:find("Hangul") then
        showCircleIndicator(green)
    else
        if indicatorCircle then indicatorCircle:hide() end
        if followTimer then followTimer:stop() end
    end
end)

-- 스크립트 실행 시 초기 표시
local currentSource = hs.keycodes.currentSourceID()
if currentSource:find("com.apple.inputmethod.Korean") or currentSource:find("Hangul") then
    showCircleIndicator(green)
end