Karabiner / Rectangle mapper

karabiner-rectangle-mapper.json

{
  "title": "Windows Resizing (Fn + arrow)",
  "rules": [
    {
      "description": "Window on top - Fn + Arrow up => CTRL+CMD+OPT+9",
      "manipulators": [
        {
          "type": "basic",
          "from": {
            "modifiers": {
              "mandatory": [
                "fn"
              ]
            },
            "key_code": "up_arrow"
          },
          "to": [
            {
              "repeat": false,
              "key_code": "9",
              "modifiers": [
                "left_gui",
                "left_alt",
                "left_control"
              ]
            }
          ]
        }
      ]
    },
    {
      "description": "Window on bottom - Fn + Arrow down => CTRL+CMD+OPT+L",
      "manipulators": [
        {
          "type": "basic",
          "from": {
            "modifiers": {
              "mandatory": [
                "fn"
              ]
            },
            "key_code": "down_arrow"
          },
          "to": [
            {
              "repeat": false,
              "key_code": "l",
              "modifiers": [
                "left_gui",
                "left_alt",
                "left_control"
              ]
            }
          ]
        }
      ]
    },
    {
      "description": "Window on left - Fn + Arrow left => CTRL+CMD+OPT+I",
      "manipulators": [
        {
          "type": "basic",
          "from": {
            "modifiers": {
              "mandatory": [
                "fn"
              ]
            },
            "key_code": "left_arrow"
          },
          "to": [
            {
              "repeat": false,
              "key_code": "i",
              "modifiers": [
                "left_gui",
                "left_alt",
                "left_control"
              ]
            }
          ]
        }
      ]
    },
    {
      "description": "Window on right - Fn + Arrow right => CTRL+CMD+OPT+P",
      "manipulators": [
        {
          "type": "basic",
          "from": {
            "modifiers": {
              "mandatory": [
                "fn"
              ]
            },
            "key_code": "right_arrow"
          },
          "to": [
            {
              "repeat": false,
              "key_code": "p",
              "modifiers": [
                "left_gui",
                "left_control",
                "left_alt"
              ]
            }
          ]
        }
      ]
    },
    {
      "description": "Fullscreen - Fn + shift + arrow up => CTRL+CMD+OPT+O ",
      "manipulators": [
        {
          "type": "basic",
          "from": {
            "modifiers": {
              "mandatory": [
                "fn",
                "left_shift"
              ]
            },
            "key_code": "up_arrow"
          },
          "to": [
            {
              "repeat": false,
              "key_code": "o",
              "modifiers": [
                "left_gui",
                "left_control",
                "left_alt"
              ]
            }
          ]
        }
      ]
    },
    {
      "description": "Restore - Fn + shift + arrow down => CTRL+CMD+OPT+DELETE",
      "manipulators": [
        {
          "type": "basic",
          "from": {
            "modifiers": {
              "mandatory": [
                "fn",
                "left_shift"
              ]
            },
            "key_code": "down_arrow"
          },
          "to": [
            {
              "repeat": false,
              "key_code": "delete_or_backspace",
              "modifiers": [
                "left_gui",
                "left_control",
                "left_alt"
              ]
            }
          ]
        }
      ]
    }
  ]
}

Purpose

• Avoid complicated shortcut to move/resize windows
• Avoid shortcuts that may be conflict with system ones

Usage

• Resize/move windows using FN + arrow key
• maximize window using FN + SHIFT + UP
• restore previous window size using FN + SHIFT + DOWN

Installation

• Install Rectangle
• Configure :
  • Half-left to CONTROL+OPTION+COMMAND+I (letter i)
  • Half-right to CONTROL+OPTION+COMMAND+P
  • Half-top to CONTROL+OPTION+COMMAND+9 (or ç in french keyboard layout)
  • Half-bottom to CONTROL+OPTION+COMMAND+L
  • Restore to CONTROL+OPTION+COMMAND+DELETE
  • Maximize to CONTROL+OPTION+COMMAND+O (letter o)