Я новичок в ELM и хочу создать модальное окно без использования каких-либо библиотек, таких как Bootstrap или ELM-UI. Я нашел этот простой пример в Интернете, который также использует декодирование JSON. Есть ли возможность, чтобы модальная работа работала просто без каких-либо фреймворков/библиотек и декодирования JSON? Как я могу изменить код, чтобы просто получить рабочий модальный режим?
module Main exposing (main)
import Browser
import Html exposing (Html, Attribute, button, div, span, text)
import Html.Events exposing (onClick, on)
import Html.Attributes exposing (class, style)
import Json.Decode as Decode
type alias Model =
{ isVisible : Bool, count : Int }
initialModel : Model
initialModel =
{ isVisible = False, count = 0 }
type Msg
= Show
| Hide
| Increment
| Decrement
update : Msg -> Model -> Model
update msg model =
case msg of
Show ->
{ model | isVisible = True }
Hide ->
{ model | isVisible = False }
Increment ->
{ model | count = model.count + 1 }
Decrement ->
{ model | count = model.count - 1 }
view : Model -> Html Msg
view model =
div []
[ button [ onClick Show ] [ text "Show!" ]
, if model.isVisible then
div
([ class dialogContainerClass
, on "click" (containerClickDecoder Hide)
]
++ dialogContainerStyle
)
[ div dialogContentStyle
[ span [] [ text "Click anywhere outside this dialog to close it!" ]
, span [] [ text "Clicking on anything inside of this dialog works as normal." ]
, div []
[ button [ onClick Decrement ] [ text "-" ]
, text (String.fromInt model.count)
, button [ onClick Increment ] [ text "+" ]
]
]
]
else
div [] []
]
dialogContainerClass : String
dialogContainerClass = "dialog-container-class"
containerClickDecoder : msg -> Decode.Decoder msg
containerClickDecoder closeMsg =
Decode.at [ "target", "className" ] Decode.string
|> Decode.andThen
(\c ->
if String.contains dialogContainerClass c then
Decode.succeed closeMsg
else
Decode.fail "ignoring"
)
dialogContainerStyle : List (Attribute msg)
dialogContainerStyle =
[ style "position" "absolute"
, style "top" "0"
, style "bottom" "0"
, style "right" "0"
, style "left" "0"
, style "display" "flex"
, style "align-items" "center"
, style "justify-content" "center"
, style "background-color" "rgba(33, 43, 54, 0.4)"
]
dialogContentStyle : List (Attribute msg)
dialogContentStyle =
[ style "border-style" "solid"
, style "border-radius" "3px"
, style "border-color" "white"
, style "background-color" "white"
, style "height" "120px"
, style "width" "440px"
, style "display" "flex"
, style "flex-direction" "column"
, style "align-items" "center"
, style "justify-content" "center"
]
main : Program () Model Msg
main =
Browser.sandbox
{ init = initialModel
, view = view
, update = update
}