{-# LANGUAGE PatternSynonyms #-}
{-# LANGUAGE ForeignFunctionInterface #-}
{-# LANGUAGE JavaScriptFFI #-}
-- For HasCallStack compatibility
{-# LANGUAGE ImplicitParams, ConstraintKinds, KindSignatures #-}
module GHCJS.DOM.JSFFI.Generated.IntersectionObserverCallback
       (newIntersectionObserverCallback,
        newIntersectionObserverCallbackSync,
        newIntersectionObserverCallbackAsync, IntersectionObserverCallback)
       where
import Prelude ((.), (==), (>>=), return, IO, Int, Float, Double, Bool(..), Maybe, maybe, fromIntegral, round, fmap, Show, Read, Eq, Ord)
import qualified Prelude (error)
import Data.Typeable (Typeable)
import GHCJS.Types (JSVal(..), JSString)
import GHCJS.Foreign (jsNull, jsUndefined)
import GHCJS.Foreign.Callback (syncCallback, asyncCallback, syncCallback1, asyncCallback1, syncCallback2, asyncCallback2, OnBlocked(..))
import GHCJS.Marshal (ToJSVal(..), FromJSVal(..))
import GHCJS.Marshal.Pure (PToJSVal(..), PFromJSVal(..))
import Control.Monad (void)
import Control.Monad.IO.Class (MonadIO(..))
import Data.Int (Int64)
import Data.Word (Word, Word64)
import Data.Maybe (fromJust)
import Data.Traversable (mapM)
import GHCJS.DOM.Types
import Control.Applicative ((<$>))
import GHCJS.DOM.EventTargetClosures (EventName, unsafeEventName)
import GHCJS.DOM.JSFFI.Generated.Enums

-- | <https://developer.mozilla.org/en-US/docs/Web/API/IntersectionObserverCallback Mozilla IntersectionObserverCallback documentation> 
newIntersectionObserverCallback ::
                                (MonadIO m) =>
                                  ([IntersectionObserverEntry] -> IntersectionObserver -> IO ()) ->
                                    m IntersectionObserverCallback
newIntersectionObserverCallback callback
  = liftIO
      (IntersectionObserverCallback <$>
         syncCallback2 ThrowWouldBlock
           (\ entries observer ->
              fromJSValUnchecked observer >>=
                \ observer' ->
                  fromJSValUnchecked entries >>= \ entries' -> callback entries'
                    observer'))

-- | <https://developer.mozilla.org/en-US/docs/Web/API/IntersectionObserverCallback Mozilla IntersectionObserverCallback documentation> 
newIntersectionObserverCallbackSync ::
                                    (MonadIO m) =>
                                      ([IntersectionObserverEntry] -> IntersectionObserver -> IO ())
                                        -> m IntersectionObserverCallback
newIntersectionObserverCallbackSync callback
  = liftIO
      (IntersectionObserverCallback <$>
         syncCallback2 ContinueAsync
           (\ entries observer ->
              fromJSValUnchecked observer >>=
                \ observer' ->
                  fromJSValUnchecked entries >>= \ entries' -> callback entries'
                    observer'))

-- | <https://developer.mozilla.org/en-US/docs/Web/API/IntersectionObserverCallback Mozilla IntersectionObserverCallback documentation> 
newIntersectionObserverCallbackAsync ::
                                     (MonadIO m) =>
                                       ([IntersectionObserverEntry] ->
                                          IntersectionObserver -> IO ())
                                         -> m IntersectionObserverCallback
newIntersectionObserverCallbackAsync callback
  = liftIO
      (IntersectionObserverCallback <$>
         asyncCallback2
           (\ entries observer ->
              fromJSValUnchecked observer >>=
                \ observer' ->
                  fromJSValUnchecked entries >>= \ entries' -> callback entries'
                    observer'))