8000 Use Function instead of JSVal. by dmjio · Pull Request #951 · dmjio/miso · GitHub
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Use Function instead of JSVal. #951

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merged 1 commit into from
May 21, 2025
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Use Function instead of JSVal. #951

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13 changes: 6 additions & 7 deletions src/Miso/Canvas.hs
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Original file line number Diff line number Diff line change
Expand Up @@ -153,7 +153,7 @@ import Control.Monad (void, liftM, ap, liftM2)
import Data.Kind (Type)
import Language.Javascript.JSaddle ( JSM, JSVal, (#), fromJSVal
, (<#), toJSVal, (!)
, liftJSM
, liftJSM, Function
, ToJSVal, MakeObject, (<##)
#ifndef GHCJS_BOTH
, MonadJSM(..)
Expand All @@ -172,13 +172,13 @@ import Miso.String (MisoString)
canvas
:: forall action
. [ Attribute action ]
-> JSM JSVal
-> JSM Function
-> View action
canvas attributes callback = node HTML "canvas" attrs []
where
attrs :: [ Attribute action ]
attrs = flip (:) attributes $ Event $ \_ obj _ _ ->
flip (FFI.set "draw") obj =<< callback
flip (FFI.set "draw") obj =<< toJSVal =<< callback
-----------------------------------------------------------------------------
-- | Element for drawing on a <canvas>, includes a @Canvas@ DSL.
-- Specialized to "2d" canvas.
Expand All @@ -188,10 +188,9 @@ canvas_
-> View action
canvas_ attributes canvas' =
canvas attributes $
toJSVal =<< do
FFI.syncCallback1 $ \domRef -> do
ctx <- domRef # ("getContext" :: MisoString) $ ["2d" :: MisoString]
void (interpret ctx canvas')
FFI.syncCallback1 $ \domRef -> do
ctx <- domRef # ("getContext" :: MisoString) $ ["2d" :: MisoString]
void (interpret ctx canvas')
-----------------------------------------------------------------------------
data PatternType = Repeat | RepeatX | RepeatY | NoRepeat
-----------------------------------------------------------------------------
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