elm-mdl/Buttons.elm
2016-03-08 17:30:09 +01:00

142 lines
3.3 KiB
Elm

module Buttons where
import Dict
import Html exposing (..)
import Html.Attributes exposing (..)
import Effects
import Material.Button as Button exposing (Appearance(..), Coloring(..))
import Material.Grid as Grid
import Material.Icon as Icon
-- MODEL
type alias Index = (Int, Int)
tabulate' : Int -> List a -> List (Int, a)
tabulate' i ys =
case ys of
[] -> []
y :: ys -> (i, y) :: tabulate' (i+1) ys
tabulate : List a -> List (Int, a)
tabulate = tabulate' 0
row : Appearance -> Bool -> List (Int, (Bool, Button.Config))
row appearance ripple =
[ Plain, Colored, Primary, Accent ]
|> List.map (\c -> (ripple, { coloring = c, appearance = appearance }))
|> tabulate
buttons : List (List (Index, (Bool, Button.Config)))
buttons =
[Flat, Raised, FAB, MiniFAB, Icon]
|> List.concatMap (\a -> [row a False, row a True])
|> tabulate
|> List.map (\(i, row) -> List.map (\(j, x) -> ((i,j), x)) row)
model : Model
model =
{ clicked = ""
, buttons =
buttons
|> List.concatMap (List.map <| \(idx, (ripple, _)) -> (idx, Button.model ripple))
|> Dict.fromList
}
-- ACTION, UPDATE
type Action = Action Index Button.Action
type alias Model =
{ clicked : String
, buttons : Dict.Dict Index Button.Model
}
update : Action -> Model -> (Model, Effects.Effects Action)
update (Action idx action) model =
Dict.get idx model.buttons
|> Maybe.map (\m0 ->
let
(m1, e) = Button.update action m0
in
({ model | buttons = Dict.insert idx m1 model.buttons }, Effects.map (Action idx) e)
)
|> Maybe.withDefault (model, Effects.none)
-- VIEW
describe : Bool -> Button.Config -> String
describe ripple config =
let
appearance =
case config.appearance of
Flat -> "flat"
Raised -> "raised"
FAB -> "FAB"
MiniFAB -> "mini-FAB"
Icon -> "icon"
coloring =
case config.coloring of
Plain -> "plain"
Colored -> "colored"
Primary -> "primary"
Accent -> "accent"
in
appearance ++ ", " ++ coloring ++ if ripple then " w/ripple" else ""
view : Signal.Address Action -> Model -> Html
view addr model =
buttons |> List.concatMap (\row ->
row |> List.map (\(idx, (ripple, config)) ->
let model' =
Dict.get idx model.buttons |> Maybe.withDefault (Button.model False)
in
Grid.cell
[ Grid.col Grid.All 3]
[ div
[ style
[ ("text-align", "center")
, ("margin-top", "1em")
, ("margin-bottom", "1em")
]
]
[ Button.view
(Signal.forwardTo addr (Action idx))
config
model'
[]
[ case config.appearance of
Flat -> text <| "Flat Button"
Raised -> text <| "Raised Button"
FAB -> Icon.i "add"
MiniFAB -> Icon.i "zoom_in"
Icon -> Icon.i "flight_land"
]
, div
[ style
[ ("font-size", "9pt")
, ("margin-top", "1em")
]
]
[ text <| describe ripple config ]
]
]
)
)
|> Grid.grid