# Sauce
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Mapping various keyboard layout sources and key codes in macOS. (e.g.: QWERTY, Dvorak)

## Motivation
Only the ANSI-standard US keyboard is defined for the key code defined in Carbon.framework. Therefore, we can obtain only the key code of the QWERTY keyboard layout. (e.g.: `kVK_ANSI_V`)  
In layout other than QWERTY, (e.g. Dvorak) the virtual key code is different.

|  Keyboard Layout  |  Key  |  Key Code  |
| :---------------: | :---: | :--------: |
|      QWERTY       |   v   |      9     |
|      Dvorak       |   v   |     47     |

This library is created with the purpose of mapping the key code of the input sources and making it possible to obtain the correct key code in various keyboard layouts.

## Usage
### CocoaPods
```
pod 'Sauce'
```

### Carthage
```
github "Clipy/Sauce"
```

## Example
### Key codes
Get the key code of the current input source.

```swift
let keyCode = Sauce.shared.keyCode(for: .v)
```

### Key
Get the `Key` of the current input source.

```swift
let key = Sauce.shared.key(for: keyCode)
```

### Character
Get the character of the current input source.

```swift
let character = Sauce.shared.character(for: keyCode, carbonModifiers: shiftKey)
let character = Sauce.shared.character(for: keyCode, cocoaModifiers: [.shift])
```

## Notification
### `NSNotification.Name.SauceEnabledKeyboardInputSourcesChanged`
`SauceEnabledKeyboardInputSourcesChanged` is the same as `kTISNotifyEnabledKeyboardInputSourcesChanged` in Carbon.framework  

### `NSNotification.Name.SauceSelectedKeyboardInputSourceChanged`
`SauceSelectedKeyboardInputSourceChanged` is different from `kTISNotifySelectedKeyboardInputSourceChanged` and is notified only when the input source id has changed.  
Since it is filtered and notified, please do not use it for the same purpose as normal `kTISNotifySelectedKeyboardInputSourceChanged`.

## Contributing
1. Fork it ( https://github.com/Clipy/Sauce/fork )
2. Create your feature branch (`git checkout -b my-new-feature`)
3. Commit your changes (`git commit -am 'Add some feature'`)
4. Push to the branch (`git push origin my-new-feature`)
5. Create a new Pull Request
