[Karabiner] JA fast switcher

ja-fast-switch.json

{
  "title": "Fast switch to/from JA",
  "rules": [

{
  "description": "Fast switch to JA (Opt+Cmd+Space)",
  "manipulators": [
    
    {
      "type": "basic",
      "conditions": [
        {
          "type": "input_source_unless",
          "input_sources": [
            {
              "language": "ja"
            }
          ]
        }
      ],
      "from": {
        "key_code": "spacebar",
        "modifiers": {
          "mandatory": [
            "option",
            "command"
          ]
        }
      },
      "to": [
        {
          "key_code": "vk_none"
        },
        {
          "select_input_source": {
            "language": "ja"
          }
        }
      ]
    }
  ]
},
{
  "description": "Fast switch out from JA -> EN (Caps Lock)",
  "manipulators": [
    
    {
      "type": "basic",
      "conditions": [
        {
          "type": "input_source_if",
          "input_sources": [
            {
              "language": "ja"
            }
          ]
        }
      ],
      "from": {
        "key_code": "caps_lock"
      },
      "to": [
        {
          "key_code": "vk_none"
        },
        {
          "select_input_source": {
            "language": "en"
          }
        }
      ]
    }
  ]
}

  ]
}