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module Chelleport.Control where
import Chelleport.Types
import Chelleport.Utils (cIntToInt)
import Control.Concurrent (threadDelay)
import Control.Monad (unless)
import Control.Monad.IO.Class (MonadIO (liftIO))
import Control.Monad.Reader (MonadReader (ask))
import qualified Debug.Trace as Debug
import Foreign.C.Types
import qualified Graphics.X11 as X11
import qualified SDL
class (Monad m) => MonadControl m where
pressMouseButton :: MouseButtonType -> m ()
moveMousePointer :: CInt -> CInt -> m ()
mouseButtonDown :: m ()
mouseButtonUp :: m ()
getMousePointerPosition :: m (CInt, CInt)
foreign import ccall unsafe "X11/extensions/XTest.h XTestFakeButtonEvent"
xSimulateButtonEvent :: X11.Display -> X11.Button -> Bool -> X11.Time -> IO X11.Status
-- Wrap with delay to prevent async window close issues
withDelay :: (MonadIO m) => m () -> m ()
withDelay act = delay >> act >> delay
where
delay = liftIO (threadDelay 20_000)
instance (MonadIO m) => MonadControl (AppM m) where
pressMouseButton btn = do
(DrawContext {ctxX11Display = display}) <- ask
withDelay . liftIO $ do
xSimulateButtonEvent display x11Button True 0
xSimulateButtonEvent display x11Button False 0
X11.sync display False
where
x11Button = case btn of
LeftClick -> X11.button1
RightClick -> X11.button3
moveMousePointer x y = do
SDL.warpMouse SDL.WarpGlobal (SDL.P $ SDL.V2 x y)
getMousePointerPosition = do
DrawContext {ctxX11Display = display} <- ask
liftIO $ do
win <- X11.rootWindow display $ X11.defaultScreen display
(success, _, _, x, y, _, _, _) <- X11.queryPointer display win
unless success $ do
Debug.traceM "ERROR: Cant query pointer"
pure (x, y)
mouseButtonDown = do
(DrawContext {ctxX11Display = display}) <- ask
withDelay . liftIO $ do
xSimulateButtonEvent display X11.button1 True 0
X11.sync display False
mouseButtonUp = do
(DrawContext {ctxX11Display = display}) <- ask
withDelay . liftIO $ do
xSimulateButtonEvent display X11.button1 False 0
X11.sync display False
isKeyPressed :: SDL.KeyboardEventData -> Bool
isKeyPressed = (== SDL.Pressed) . SDL.keyboardEventKeyMotion
isKeyRelease :: SDL.KeyboardEventData -> Bool
isKeyRelease = (== SDL.Released) . SDL.keyboardEventKeyMotion
eventToKeycode :: SDL.KeyboardEventData -> SDL.Keycode
eventToKeycode = SDL.keysymKeycode . SDL.keyboardEventKeysym
isKeyPressWith :: SDL.KeyboardEventData -> SDL.Keycode -> Bool
isKeyPressWith keyboardEvent keyCode =
isKeyPressed keyboardEvent && eventToKeycode keyboardEvent == keyCode
isKeyReleaseWith :: SDL.KeyboardEventData -> SDL.Keycode -> Bool
isKeyReleaseWith keyboardEvent keyCode =
isKeyRelease keyboardEvent && eventToKeycode keyboardEvent == keyCode
withShift :: SDL.KeyboardEventData -> Bool
withShift event = SDL.keyModifierLeftShift modifier || SDL.keyModifierRightShift modifier
where
modifier = SDL.keysymModifier . SDL.keyboardEventKeysym $ event
directionalIncrement :: (CInt, CInt) -> Char -> (Int, Int)
directionalIncrement (incX, incY) = \case
'H' -> (-cIntToInt incX, 0)
'L' -> (cIntToInt incX, 0)
'K' -> (0, -cIntToInt incY)
'J' -> (0, cIntToInt incY)
_ -> undefined
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