# Navigator

    'use strict'

    utils = require 'src/utils'
    signal = require 'src/signal'
    assert = require 'src/assert'

    module.exports = (Renderer, Impl, itemUtils) ->
        class Navigator extends signal.Emitter
            constructor: ->
                super()
                @_impl = bindings: null
                @_language = 'en'
                @_browser = true
                @_online = true

                Object.preventExtensions @

## *Boolean* Navigator.language = `'en'`

```javascript
Text {
    text: 'Your language: ' + Navigator.language
    font.pixelSize: 30
}
```

            utils.defineProperty @::, 'language', null, ->
                @_language
            , null

## *Boolean* Navigator.browser = `true`

            utils.defineProperty @::, 'browser', null, ->
                @_browser
            , null

## *Boolean* Navigator.native = `false`

```javascript
Text {
    text: Navigator.native ? 'Native' : 'Browser'
    font.pixelSize: 30
}
```

            utils.defineProperty @::, 'native', null, ->
                not @_browser
            , null

## *Boolean* Navigator.online = `true`

## *Signal* Navigator.onOnlineChange(*Boolean* oldValue)

            itemUtils.defineProperty
                constructor: @
                name: 'online'
                developmentSetter: (val) ->
                    assert.isBoolean val

        navigator = new Navigator
        Impl.initNavigatorNamespace?.call navigator
        navigator

# Glossary

- [Navigator](#navigator)