hammer spoon

init.lua

local function keyCode(key, modifiers)
   modifiers = modifiers or {}
   return function()
      hs.eventtap.event.newKeyEvent(modifiers, string.lower(key), true):post()
      hs.timer.usleep(1000)
      hs.eventtap.event.newKeyEvent(modifiers, string.lower(key), false):post()      
   end
end

local function remapKey(modifiers, key, keyCode)
   hs.hotkey.bind(modifiers, key, keyCode, nil, keyCode)
end

local function disableAllHotkeys()
   for k, v in pairs(hs.hotkey.getHotkeys()) do
      v['_hk']:disable()
   end
end

local function enableAllHotkeys()
   for k, v in pairs(hs.hotkey.getHotkeys()) do
      v['_hk']:enable()
   end
end

local function handleGlobalAppEvent(name, event, app)
   if event == hs.application.watcher.activated then
      -- hs.alert.show(name)
      if name ~= "iTerm2" and name ~= "ターミナル" and name ~= "Emacs" then
         enableAllHotkeys()
      else
         disableAllHotkeys()
      end
   end
end

local function keyCtrlK()
  keyCode('e', {'shift', 'ctrl'})()
  keyCode('x', {'cmd'})()
end
hs.hotkey.bind({'ctrl'}, 'k', keyCtrlK, nil, keyCtrlK)

appsWatcher = hs.application.watcher.new(handleGlobalAppEvent)
appsWatcher:start()

-- カーソル移動
remapKey({'ctrl'}, 'f', keyCode('right'))
remapKey({'ctrl'}, 'b', keyCode('left'))
remapKey({'ctrl'}, 'n', keyCode('down'))
remapKey({'ctrl'}, 'p', keyCode('up'))

-- テキスト編集
remapKey({'ctrl'}, 'w', keyCode('x', {'cmd'}))
remapKey({'ctrl'}, 'y', keyCode('v', {'cmd'}))

-- コマンド
remapKey({'ctrl'}, 's', keyCode('f', {'cmd'}))
remapKey({'ctrl'}, '/', keyCode('z', {'cmd'}))
remapKey({'ctrl'}, 'g', keyCode('escape'))

-- ページスクロール
remapKey({'ctrl'}, 'v', keyCode('pagedown'))
remapKey({'alt'}, 'v', keyCode('pageup'))
remapKey({'cmd', 'shift'}, ',', keyCode('home'))
remapKey({'cmd', 'shift'}, '.', keyCode('end'))