From 71c60a579c9169c7a3a1228c5be421038f525070 Mon Sep 17 00:00:00 2001
From: tv <tv@shackspace.de>
Date: Sat, 17 Oct 2015 02:30:38 +0200
Subject: Replace Event by Scan

---
 src/Scanner.hs | 36 ++++++++++++++++++++++++------------
 1 file changed, 24 insertions(+), 12 deletions(-)

diff --git a/src/Scanner.hs b/src/Scanner.hs
index df48868..d02750e 100644
--- a/src/Scanner.hs
+++ b/src/Scanner.hs
@@ -2,31 +2,43 @@
 
 module Scanner
     ( scan
+    , Scan(..)
     ) where
 
 import Data.Bits ((.&.), testBit)
 import Data.Char (ord)
 import Data.Word (Word8)
-import Event
 import System.IO (Handle, hGetChar, hLookAhead, hWaitForInput)
 
 
 timeout :: Int
 timeout = 1
 
+data Scan =
+    ScanKey String
+  | ScanMouse
+      { mouseButton :: Int -- 0 = release
+      , mouseShift :: Bool
+      , mouseMeta :: Bool
+      , mouseControl :: Bool
+      , mouseX :: Int
+      , mouseY :: Int
+      }
 
-scan :: Handle -> IO Event
+
+
+scan :: Handle -> IO Scan
 scan h =
     hGetChar h >>= \case
         '\ESC' -> scanESC h
-        c -> return $ EKey [c]
+        c -> return $ ScanKey [c]
 
 
 
-scanESC :: Handle -> IO Event
+scanESC :: Handle -> IO Scan
 scanESC h =
     hWaitGetChar timeout h >>= \case
-        Nothing -> return $ EKey "\ESC"
+        Nothing -> return $ ScanKey "\ESC"
         Just c
             | c == '[' -> -- 05/11
                 scanCS h
@@ -39,15 +51,15 @@ scanESC h =
                 -- XXX finalByte is maybe calles somehow else here, but it's
                 -- the same range
                 one h finalByte ['O','\ESC'] >>=
-                return . EKey . reverse
+                return . ScanKey . reverse
             | otherwise ->
-                return $ EKey ['\ESC',c]
+                return $ ScanKey ['\ESC',c]
 
 
-scanCS :: Handle -> IO Event
+scanCS :: Handle -> IO Scan
 scanCS h =
     hWaitLookAhead timeout h >>= \case
-        Nothing -> return $ EKey "\ESC" -- TODO move this to scanESC
+        Nothing -> return $ ScanKey "\ESC" -- TODO move this to scanESC
         Just c
             | c == 'M' -> do
                 _ <- hGetChar h -- drop 'M'
@@ -59,7 +71,7 @@ scanCS h =
                 zeroOrMore h parameterByte ['[', '\ESC'] >>=
                 zeroOrMore h intermediateByte >>=
                 one h finalByte >>=
-                return . EKey . reverse
+                return . ScanKey . reverse
 
 
 
@@ -116,7 +128,7 @@ hWaitLookAhead t h = do
         else return Nothing
 
 
-parseNormalButton :: Char -> Char -> Char -> Event
+parseNormalButton :: Char -> Char -> Char -> Scan
 parseNormalButton cb cx cy = do
     let b = fromIntegral $ ord cb :: Word8
         x = ord cx - 32
@@ -131,7 +143,7 @@ parseNormalButton cb cx cy = do
                 66 -> 6 -- wheel left
                 67 -> 7 -- wheel right
                 _ -> error "TODO proper parseNormalButton error"
-    EMouse $ MouseInfo
+    ScanMouse
         { mouseButton  = button
         , mouseShift   = testBit b 2
         , mouseMeta    = testBit b 3
-- 
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