{- |
Copyright  : Will Thompson, Iñaki García Etxebarria and Jonas Platte
License    : LGPL-2.1
Maintainer : Iñaki García Etxebarria (garetxe@gmail.com)

Note: /@oldValue@/ field of 'GI.Atk.Structs.PropertyValues.PropertyValues' will not contain a
valid value. This is a field defined with the purpose of contain
the previous value of the property, but is not used anymore.
-}

module GI.Atk.Structs.PropertyValues
    ( 

-- * Exported types
    PropertyValues(..)                      ,
    newZeroPropertyValues                   ,
    noPropertyValues                        ,


 -- * Properties
-- ** newValue #attr:newValue#
    getPropertyValuesNewValue               ,
    propertyValues_newValue                 ,


-- ** oldValue #attr:oldValue#
    getPropertyValuesOldValue               ,
    propertyValues_oldValue                 ,


-- ** propertyName #attr:propertyName#
    clearPropertyValuesPropertyName         ,
    getPropertyValuesPropertyName           ,
    propertyValues_propertyName             ,
    setPropertyValuesPropertyName           ,




    ) where

import Data.GI.Base.ShortPrelude
import qualified Data.GI.Base.ShortPrelude as SP
import qualified Data.GI.Base.Overloading as O
import qualified Prelude as P

import qualified Data.GI.Base.Attributes as GI.Attributes
import qualified Data.GI.Base.ManagedPtr as B.ManagedPtr
import qualified Data.GI.Base.GError as B.GError
import qualified Data.GI.Base.GVariant as B.GVariant
import qualified Data.GI.Base.GParamSpec as B.GParamSpec
import qualified Data.GI.Base.CallStack as B.CallStack
import qualified Data.Text as T
import qualified Data.ByteString.Char8 as B
import qualified Data.Map as Map
import qualified Foreign.Ptr as FP


newtype PropertyValues = PropertyValues (ManagedPtr PropertyValues)
instance WrappedPtr PropertyValues where
    wrappedPtrCalloc = callocBytes 56
    wrappedPtrCopy = \p -> withManagedPtr p (copyBytes 56 >=> wrapPtr PropertyValues)
    wrappedPtrFree = Just ptr_to_g_free

-- | Construct a `PropertyValues` struct initialized to zero.
newZeroPropertyValues :: MonadIO m => m PropertyValues
newZeroPropertyValues = liftIO $ wrappedPtrCalloc >>= wrapPtr PropertyValues

instance tag ~ 'AttrSet => Constructible PropertyValues tag where
    new _ attrs = do
        o <- newZeroPropertyValues
        GI.Attributes.set o attrs
        return o


noPropertyValues :: Maybe PropertyValues
noPropertyValues = Nothing

getPropertyValuesPropertyName :: MonadIO m => PropertyValues -> m (Maybe T.Text)
getPropertyValuesPropertyName s = liftIO $ withManagedPtr s $ \ptr -> do
    val <- peek (ptr `plusPtr` 0) :: IO CString
    result <- SP.convertIfNonNull val $ \val' -> do
        val'' <- cstringToText val'
        return val''
    return result

setPropertyValuesPropertyName :: MonadIO m => PropertyValues -> CString -> m ()
setPropertyValuesPropertyName s val = liftIO $ withManagedPtr s $ \ptr -> do
    poke (ptr `plusPtr` 0) (val :: CString)

clearPropertyValuesPropertyName :: MonadIO m => PropertyValues -> m ()
clearPropertyValuesPropertyName s = liftIO $ withManagedPtr s $ \ptr -> do
    poke (ptr `plusPtr` 0) (FP.nullPtr :: CString)

data PropertyValuesPropertyNameFieldInfo
instance AttrInfo PropertyValuesPropertyNameFieldInfo where
    type AttrAllowedOps PropertyValuesPropertyNameFieldInfo = '[ 'AttrSet, 'AttrGet, 'AttrClear]
    type AttrSetTypeConstraint PropertyValuesPropertyNameFieldInfo = (~) CString
    type AttrBaseTypeConstraint PropertyValuesPropertyNameFieldInfo = (~) PropertyValues
    type AttrGetType PropertyValuesPropertyNameFieldInfo = Maybe T.Text
    type AttrLabel PropertyValuesPropertyNameFieldInfo = "property_name"
    type AttrOrigin PropertyValuesPropertyNameFieldInfo = PropertyValues
    attrGet _ = getPropertyValuesPropertyName
    attrSet _ = setPropertyValuesPropertyName
    attrConstruct = undefined
    attrClear _ = clearPropertyValuesPropertyName

propertyValues_propertyName :: AttrLabelProxy "propertyName"
propertyValues_propertyName = AttrLabelProxy


getPropertyValuesOldValue :: MonadIO m => PropertyValues -> m GValue
getPropertyValuesOldValue s = liftIO $ withManagedPtr s $ \ptr -> do
    let val = ptr `plusPtr` 8 :: (Ptr GValue)
    val' <- (newBoxed GValue) val
    return val'

data PropertyValuesOldValueFieldInfo
instance AttrInfo PropertyValuesOldValueFieldInfo where
    type AttrAllowedOps PropertyValuesOldValueFieldInfo = '[ 'AttrGet]
    type AttrSetTypeConstraint PropertyValuesOldValueFieldInfo = (~) (Ptr GValue)
    type AttrBaseTypeConstraint PropertyValuesOldValueFieldInfo = (~) PropertyValues
    type AttrGetType PropertyValuesOldValueFieldInfo = GValue
    type AttrLabel PropertyValuesOldValueFieldInfo = "old_value"
    type AttrOrigin PropertyValuesOldValueFieldInfo = PropertyValues
    attrGet _ = getPropertyValuesOldValue
    attrSet _ = undefined
    attrConstruct = undefined
    attrClear _ = undefined

propertyValues_oldValue :: AttrLabelProxy "oldValue"
propertyValues_oldValue = AttrLabelProxy


getPropertyValuesNewValue :: MonadIO m => PropertyValues -> m GValue
getPropertyValuesNewValue s = liftIO $ withManagedPtr s $ \ptr -> do
    let val = ptr `plusPtr` 32 :: (Ptr GValue)
    val' <- (newBoxed GValue) val
    return val'

data PropertyValuesNewValueFieldInfo
instance AttrInfo PropertyValuesNewValueFieldInfo where
    type AttrAllowedOps PropertyValuesNewValueFieldInfo = '[ 'AttrGet]
    type AttrSetTypeConstraint PropertyValuesNewValueFieldInfo = (~) (Ptr GValue)
    type AttrBaseTypeConstraint PropertyValuesNewValueFieldInfo = (~) PropertyValues
    type AttrGetType PropertyValuesNewValueFieldInfo = GValue
    type AttrLabel PropertyValuesNewValueFieldInfo = "new_value"
    type AttrOrigin PropertyValuesNewValueFieldInfo = PropertyValues
    attrGet _ = getPropertyValuesNewValue
    attrSet _ = undefined
    attrConstruct = undefined
    attrClear _ = undefined

propertyValues_newValue :: AttrLabelProxy "newValue"
propertyValues_newValue = AttrLabelProxy



instance O.HasAttributeList PropertyValues
type instance O.AttributeList PropertyValues = PropertyValuesAttributeList
type PropertyValuesAttributeList = ('[ '("propertyName", PropertyValuesPropertyNameFieldInfo), '("oldValue", PropertyValuesOldValueFieldInfo), '("newValue", PropertyValuesNewValueFieldInfo)] :: [(Symbol, *)])

type family ResolvePropertyValuesMethod (t :: Symbol) (o :: *) :: * where
    ResolvePropertyValuesMethod l o = O.MethodResolutionFailed l o

instance (info ~ ResolvePropertyValuesMethod t PropertyValues, O.MethodInfo info PropertyValues p) => O.IsLabelProxy t (PropertyValues -> p) where
    fromLabelProxy _ = O.overloadedMethod (O.MethodProxy :: O.MethodProxy info)

#if MIN_VERSION_base(4,9,0)
instance (info ~ ResolvePropertyValuesMethod t PropertyValues, O.MethodInfo info PropertyValues p) => O.IsLabel t (PropertyValues -> p) where
    fromLabel _ = O.overloadedMethod (O.MethodProxy :: O.MethodProxy info)
#endif