Represents messages handled by this library

Represents the internal model used by this library. The msg should be the type of message used in your library; not Touch.Msg.

Use this to initialize the state of Touch.Model and to specify the listeners.

This is used to update Touch.Model in response to a Touch.Msg. It also creates a Cmd to trigger listeners. Use it like this:

update : Msg -> Model -> ( Model, Cmd Msg )
update msg model =
    case msg of
        TouchMsg touchMsg ->
            Touch.update
                touchMsg
                model.touchMsg
                ( \newTouchModel -> { model | touchModel = newTouchModel } )

Creates an HTML element that responds to touch events. The second argument must be a function that converts a Touch.Msg to msg.

Listeners are like subscriptions but for touch events.

A listener that triggers when fingers move. The second argument must take the X and Y distances (in pixels) and return a msg. The X and Y values are deltas, so they are higher when the fingers are moving faster and 0 when they don't move.