Hammerspoon 自动切换输入法

-- 当选中某窗口按下 ctrl+command+. 时会显示应用的路径、名字等信息
hs.hotkey.bind({'ctrl', 'cmd'}, ".", function()
    hs.pasteboard.setContents(hs.window.focusedWindow():application():path())
    hs.alert.show("App path:        " .. hs.window.focusedWindow():application():path() .. "\n" .. "App name:      " ..
                      hs.window.focusedWindow():application():name() .. "\n" .. "IM source id:  " ..
                      hs.keycodes.currentSourceID(), hs.alert.defaultStyle, hs.screen.mainScreen(), 3)
end)

-- 这里指定中文和英文输入法的 ID
local function Chinese()
    hs.keycodes.currentSourceID("im.rime.inputmethod.Squirrel.Rime")
end
local function English()
    hs.keycodes.currentSourceID("com.apple.keylayout.ABC")
end

-- 指定程序
local appInputMethod = {
    iTerm2 = English,
    ['EuDic LightPeek'] = English,
    Bitwarden = English,
    SnippetsLab = English,
    ['微信'] = Chinese,
}

-- activated 时切换到指定的输入法，deactivated 时恢复之前的状态
currentID = ""
function applicationWatcher(appName, eventType, appObject)
    if (eventType == hs.application.watcher.activated) then
        for app, fn in pairs(appInputMethod) do
            if app == appName then
                currentID = hs.keycodes.currentSourceID()
                fn()
            end
        end
    end
    if eventType == hs.application.watcher.deactivated then
        for app, fn in pairs(appInputMethod) do
            if app == appName then
                hs.keycodes.currentSourceID(currentID)
                currentID = hs.keycodes.currentSourceID()
            end
        end
    end
end

appWatcher = hs.application.watcher.new(applicationWatcher):start()

-- 输入法切换提示
-- hs.keycodes.inputSourceChanged(function()
--     if hs.keycodes.currentMethod() == nil then
--         hs.alert.show("ABC", hs.alert.defaultStyle, hs.screen.mainScreen(), 2)
--     else
--         hs.alert.show("拼音", hs.alert.defaultStyle, hs.screen.mainScreen(), 2)
--     end
-- end)