Update keyPress.hs

keyPress.hs

@@ -1,14 +1,135 @@
 {-# LANGUAGE OverloadedStrings, OverloadedLabels, ImplicitParams #-}
 
-import Control.Monad (void)
+import Control.Monad 
 import System.Environment (getArgs, getProgName)
-import Data.Text (unpack)
 import Data.Int (Int32)
 import Data.Maybe
 import qualified GI.Gtk as Gtk
 import Data.GI.Base
 import GI.Gdk as Gdk
 
+import Data.Text (Text, unpack)
+import Text.Read (readMaybe)
+import Data.Word (Word32)
+
+
+-- this can be mapped to a kana keyboard later
+keymap :: [(Word32, String)]
+keymap =
+  [ (9, "# Esc")
+  , (67, "# F1")
+  , (68, "# F2")
+  , (69, "# F3")
+  , (70, "# F4")
+  , (71, "# F5")
+  , (72, "# F6")
+  , (73, "# F7")
+  , (74, "# F8")
+  , (75, "# F9")
+  , (76, "# F10")
+  , (95, "# F11")
+  , (96, "# F12")
+  , (111, "# PrintScrn")
+  , (78, "# Scroll Lock")
+  , (110, "# Pause")
+  , (49, "# `")
+  , (10, "# 1")
+  , (11, "# 2")
+  , (12, "# 3")
+  , (13, "# 4")
+  , (14, "# 5")
+  , (15, "# 6")
+  , (16, "# 7")
+  , (17, "# 8")
+  , (18, "# 9")
+  , (19, "# 0")
+  , (20, "# -")
+  , (21, "# =")
+  , (22, "# Backspace")
+  , (106, "# Insert")
+  , (97, "# Home")
+  , (99, "# Page Up")
+  , (77, "# Num Lock")
+  , (112, "# KP /")
+  , (63, "# KP *")
+  , (82, "# KP -")
+  , (23, "# Tab")
+  , (24, "# Q")
+  , (25, "# W")
+  , (26, "# E")
+  , (27, "# R")
+  , (28, "# T")
+  , (29, "# Y")
+  , (30, "# U")
+  , (31, "# I")
+  , (32, "# O")
+  , (33, "# P")
+  , (34, "# [")
+  , (35, "# ]")
+  , (36, "# Return")
+  , (107, "# Delete")
+  , (103, "# End")
+  , (105, "# Page Down")
+  , (79, "# KP 7")
+  , (80, "# KP 8")
+  , (81, "# KP 9")
+  , (86, "# KP +")
+  , (66, "# Caps Lock")
+  , (38, "# A")
+  , (39, "# S")
+  , (40, "# D")
+  , (41, "# F")
+  , (42, "# G")
+  , (43, "# H")
+  , (44, "# J")
+  , (45, "# K")
+  , (46, "# L")
+  , (47, "# ;")
+  , (48, "# '")
+  , (83, "# KP 4")
+  , (84, "# KP 5")
+  , (85, "# KP 6")
+  , (50, "# Shift Left")
+  , (94, "# International")
+  , (52, "# Z")
+  , (53, "# X")
+  , (54, "# C")
+  , (55, "# V")
+  , (56, "# B")
+  , (57, "# N")
+  , (58, "# M")
+  , (59, "# ,")
+  , (60, "# .")
+  , (61, "# /")
+  , (62, "# Shift Right")
+  , (51, "# \\")
+  , (98, "# Cursor Up")
+  , (87, "# KP 1")
+  , (88, "# KP 2")
+  , (89, "# KP 3")
+  , (108, "# KP Enter")
+  , (37, "# Ctrl Left")
+  , (115, "# Logo Left (-> Option)")
+  , (64, "# Alt Left (-> Command)")
+  , (65, "# Space")
+  , (113, "# Alt Right (-> Command)")
+  , (116, "# Logo Right (-> Option)")
+  , (117, "# Menu (-> International)")
+  , (109, "# Ctrl Right")
+  , (100, "# Cursor Left")
+  , (104, "# Cursor Down")
+  , (102, "# Cursor Right")
+  , (90, "# KP 0")
+  , (91, "# KP .")
+  , (133, "# ModKey")
+  ]
+
+handleKeyEvent :: Word32 -> IO ()
+handleKeyEvent keyval = 
+    case lookup keyval keymap of
+        Just keyName -> putStrLn keyName
+        Nothing      -> putStrLn "Unknown key"
+
 activate :: Gtk.Application -> IO ()
 activate app = do
 
@@ -24,12 +145,7 @@ activate app = do
 
   
   Gtk.on controller #keyPressed $ \_ keyval _ -> do
-    -- key <- Gdk.keyvalName keyval    -- cant use this because the keyname doesnt always match the real key.
-    {--
-                        i'll let the keycode displaying while i search for an actual solution for this, but it seems that
-                        it can be a little hard to deal with keycodes: https://superuser.com/questions/1709357/difficulty-remapping-the-super-key
-    --}
-    print $  keyval
+    handleKeyEvent $ keyval  -- keyval is translated using our hardcoded table
     return True