BindingSignal.hs


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

A GtkBindingSignal stores the necessary information to
activate a widget in response to a key press via a signal
emission.
-}

module GI.Gtk.Structs.BindingSignal
    ( 

-- * Exported types
    BindingSignal(..)                       ,
    newZeroBindingSignal                    ,
    noBindingSignal                         ,


 -- * Properties
-- ** NArgs
    bindingSignalReadNArgs                  ,


-- ** Next
    bindingSignalReadNext                   ,


-- ** SignalName
    bindingSignalReadSignalName             ,




    ) where

import Prelude ()
import Data.GI.Base.ShortPrelude

import qualified Data.Text as T
import qualified Data.ByteString.Char8 as B
import qualified Data.Map as Map

import GI.Gtk.Types
import GI.Gtk.Callbacks

newtype BindingSignal = BindingSignal (ForeignPtr BindingSignal)
-- | Construct a `BindingSignal` struct initialized to zero.
newZeroBindingSignal :: MonadIO m => m BindingSignal
newZeroBindingSignal = liftIO $ callocBytes 32 >>= wrapPtr BindingSignal

noBindingSignal :: Maybe BindingSignal
noBindingSignal = Nothing

bindingSignalReadNext :: BindingSignal -> IO BindingSignal
bindingSignalReadNext s = withManagedPtr s $ \ptr -> do
    val <- peek (ptr `plusPtr` 0) :: IO (Ptr BindingSignal)
    val' <- (newPtr 32 BindingSignal) val
    return val'

bindingSignalReadSignalName :: BindingSignal -> IO T.Text
bindingSignalReadSignalName s = withManagedPtr s $ \ptr -> do
    val <- peek (ptr `plusPtr` 8) :: IO CString
    val' <- cstringToText val
    return val'

bindingSignalReadNArgs :: BindingSignal -> IO Word32
bindingSignalReadNArgs s = withManagedPtr s $ \ptr -> do
    val <- peek (ptr `plusPtr` 16) :: IO Word32
    return val

-- XXX Skipped getter for "BindingSignal:args" :: Not implemented: "Don't know how to unpack C array of type TCArray False (-1) 2 (TInterface \"Gtk\" \"BindingArg\")"

type family ResolveBindingSignalMethod (t :: Symbol) (o :: *) :: * where
    ResolveBindingSignalMethod l o = MethodResolutionFailed l o

instance (info ~ ResolveBindingSignalMethod t BindingSignal, MethodInfo info BindingSignal p) => IsLabelProxy t (BindingSignal -> p) where
    fromLabelProxy _ = overloadedMethod (MethodProxy :: MethodProxy info)

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