ui: refactor: events, imports cleanup

hledger-ui/Hledger/UI/AccountsScreen.hs

@@ -10,32 +10,25 @@ module Hledger.UI.AccountsScreen
  )
 where
 
--- import Control.Monad
-import Control.Monad.IO.Class (liftIO)
--- import Data.Default
-import Data.List
-import Data.Maybe
-import Data.Monoid
--- import Data.Text (Text)
-import qualified Data.Text as T
-import Data.Time.Calendar (Day)
-import System.FilePath (takeFileName)
-import qualified Data.Vector as V
-import Graphics.Vty
 import Brick
--- import Brick.Widgets.Center
 import Brick.Widgets.List
 import Brick.Widgets.Edit
 import Brick.Widgets.Border (borderAttr)
--- import Brick.Widgets.Center
+import Control.Monad.IO.Class (liftIO)
+import Data.List
+import Data.Maybe
+import Data.Monoid
+import qualified Data.Text as T
+import Data.Time.Calendar (Day)
+import qualified Data.Vector as V
+import Graphics.Vty
 import Lens.Micro.Platform
 import System.Console.ANSI
+import System.FilePath (takeFileName)
 
 import Hledger
 import Hledger.Cli hiding (progname,prognameandversion,green)
--- import Hledger.Cli.CliOptions (defaultBalanceLineFormat)
 import Hledger.UI.UIOptions
--- import Hledger.UI.Theme
 import Hledger.UI.UITypes
 import Hledger.UI.UIState
 import Hledger.UI.UIUtils
@@ -268,8 +261,8 @@ asHandle ui0@UIState{
       case ev of
         EvKey (KChar 'q') [] -> halt ui
         -- EvKey (KChar 'l') [MCtrl] -> do
-        EvKey KEsc [] -> continue $ resetScreens d ui
-        EvKey k [] | k `elem` [KChar 'h', KChar '?'] -> continue $ setMode Help ui
+        EvKey KEsc        [] -> continue $ resetScreens d ui
+        EvKey (KChar c)   [] | c `elem` ['h','?'] -> continue $ setMode Help ui
         EvKey (KChar 'g') [] -> liftIO (uiReloadJournalIfChanged copts d j ui) >>= continue
         EvKey (KChar 'a') [] -> suspendAndResume $ clearScreen >> setCursorPosition 0 0 >> add copts j >> uiReloadJournalIfChanged copts d j ui
         EvKey (KChar '0') [] -> continue $ regenerateScreens j d $ setDepth (Just 0) ui
@@ -284,16 +277,16 @@ asHandle ui0@UIState{
         EvKey (KChar '9') [] -> continue $ regenerateScreens j d $ setDepth (Just 9) ui
         EvKey (KChar '-') [] -> continue $ regenerateScreens j d $ decDepth ui
         EvKey (KChar '_') [] -> continue $ regenerateScreens j d $ decDepth ui
-        EvKey k [] | k `elem` [KChar '+', KChar '='] -> continue $ regenerateScreens j d $ incDepth ui
+        EvKey (KChar c)   [] | c `elem` ['+','='] -> continue $ regenerateScreens j d $ incDepth ui
         EvKey (KChar 'F') [] -> continue $ regenerateScreens j d $ toggleFlat ui
         EvKey (KChar 'E') [] -> scrollTop >> (continue $ regenerateScreens j d $ toggleEmpty ui)
         EvKey (KChar 'C') [] -> scrollTop >> (continue $ regenerateScreens j d $ toggleCleared ui)
         EvKey (KChar 'U') [] -> scrollTop >> (continue $ regenerateScreens j d $ toggleUncleared ui)
         EvKey (KChar 'R') [] -> scrollTop >> (continue $ regenerateScreens j d $ toggleReal ui)
-        EvKey k [] | k `elem` [KChar '/'] -> continue $ regenerateScreens j d $ showMinibuffer ui
-        EvKey k [] | k `elem` [KBS, KDel] -> (continue $ regenerateScreens j d $ resetFilter ui)
+        EvKey (KChar '/') [] -> continue $ regenerateScreens j d $ showMinibuffer ui
+        EvKey k           [] | k `elem` [KBS, KDel] -> (continue $ regenerateScreens j d $ resetFilter ui)
         EvKey (KLeft) []     -> continue $ popScreen ui
-        EvKey (k) [] | k `elem` [KRight, KEnter] -> scrollTopRegister >> continue (screenEnter d scr ui)
+        EvKey k           [] | k `elem` [KRight, KEnter] -> scrollTopRegister >> continue (screenEnter d scr ui)
           where
             scr = rsSetAccount selacct registerScreen
 

hledger-ui/Hledger/UI/ErrorScreen.hs

@@ -8,23 +8,14 @@ module Hledger.UI.ErrorScreen
  )
 where
 
--- import Lens.Micro.Platform ((^.))
 import Control.Monad.IO.Class (liftIO)
 import Data.Monoid
--- import Data.Maybe
 import Data.Time.Calendar (Day)
 import Graphics.Vty
 import Brick
--- import Brick.Widgets.List
--- import Brick.Widgets.Border
--- import Brick.Widgets.Border.Style
--- import Brick.Widgets.Center
--- import Text.Printf
 
--- import Hledger
 import Hledger.Cli hiding (progname,prognameandversion,green)
 import Hledger.UI.UIOptions
--- import Hledger.UI.Theme
 import Hledger.UI.UITypes
 import Hledger.UI.UIState
 import Hledger.UI.UIUtils
@@ -84,19 +75,14 @@ esHandle ui@UIState{
       case ev of
         EvKey (KChar 'q') [] -> halt ui
         EvKey KEsc        [] -> continue $ resetScreens d ui
-        EvKey k [] | k `elem` [KChar 'h', KChar '?'] -> continue $ setMode Help ui
+        EvKey (KChar c)   [] | c `elem` ['h','?'] -> continue $ setMode Help ui
         EvKey (KChar 'g') [] -> do
           (ej, _) <- liftIO $ journalReloadIfChanged copts d j
           case ej of
             Left err -> continue ui{aScreen=s{esError=err}} -- show latest parse error
             Right j' -> continue $ regenerateScreens j' d $ popScreen ui  -- return to previous screen, and reload it
-        -- EvKey (KLeft) []     -> continue $ popScreen ui
-        -- EvKey (KRight) []    -> error (show curItem) where curItem = listSelectedElement is
-        -- fall through to the list's event handler (handles [pg]up/down)
-        _                       -> do continue ui
-                                     -- is' <- handleEvent ev is
-                                     -- continue ui{aScreen=s{rsState=is'}}
-                                     -- continue =<< handleEventLensed ui someLens e
+        _ -> continue ui
+
 esHandle _ _ = error "event handler called with wrong screen type, should not happen"
 
 -- If journal file(s) have changed, reload the journal and regenerate all screens.

hledger-ui/Hledger/UI/RegisterScreen.hs

@@ -14,7 +14,6 @@ import Data.List
 import Data.List.Split (splitOn)
 import Data.Monoid
 import Data.Maybe
--- import Data.Text (Text)
 import qualified Data.Text as T
 import Data.Time.Calendar (Day)
 import qualified Data.Vector as V
@@ -23,9 +22,7 @@ import Brick
 import Brick.Widgets.List
 import Brick.Widgets.Edit
 import Brick.Widgets.Border (borderAttr)
--- import Brick.Widgets.Center
 import System.Console.ANSI
--- import Text.Printf
 
 
 import Hledger
@@ -247,18 +244,17 @@ rsHandle ui@UIState{
       case ev of
         EvKey (KChar 'q') [] -> halt ui
         EvKey KEsc        [] -> continue $ resetScreens d ui
-        EvKey k [] | k `elem` [KChar 'h', KChar '?'] -> continue $ setMode Help ui
+        EvKey (KChar c)   [] | c `elem` ['h','?'] -> continue $ setMode Help ui
         EvKey (KChar 'g') [] -> liftIO (uiReloadJournalIfChanged copts d j ui) >>= continue
         EvKey (KChar 'a') [] -> suspendAndResume $ clearScreen >> setCursorPosition 0 0 >> add copts j >> uiReloadJournalIfChanged copts d j ui
         EvKey (KChar 'E') [] -> scrollTop >> (continue $ regenerateScreens j d $ toggleEmpty ui)
         EvKey (KChar 'C') [] -> scrollTop >> (continue $ regenerateScreens j d $ toggleCleared ui)
         EvKey (KChar 'U') [] -> scrollTop >> (continue $ regenerateScreens j d $ toggleUncleared ui)
         EvKey (KChar 'R') [] -> scrollTop >> (continue $ regenerateScreens j d $ toggleReal ui)
-        EvKey k [] | k `elem` [KChar '/'] -> (continue $ regenerateScreens j d $ showMinibuffer ui)
-        EvKey k [] | k `elem` [KBS, KDel] -> (continue $ regenerateScreens j d $ resetFilter ui)
+        EvKey (KChar '/') [] -> (continue $ regenerateScreens j d $ showMinibuffer ui)
+        EvKey k           [] | k `elem` [KBS, KDel] -> (continue $ regenerateScreens j d $ resetFilter ui)
         EvKey (KLeft)     [] -> continue $ popScreen ui
-
-        EvKey (k) [] | k `elem` [KRight, KEnter] -> do
+        EvKey k           [] | k `elem` [KRight, KEnter] -> do
           case listSelectedElement rsList of
             Just (_, RegisterScreenItem{rsItemTransaction=t}) ->
               let
@@ -270,14 +266,12 @@ rsHandle ui@UIState{
                                                           ,tsTransactions=numberedts
                                                           ,tsAccount=rsAccount} ui
             Nothing -> continue ui
-
         -- fall through to the list's event handler (handles [pg]up/down)
         ev -> do newitems <- handleEvent ev rsList
                  continue ui{aScreen=s{rsList=newitems}}
                  -- continue =<< handleEventLensed ui someLens ev
-
-  where
-    -- Encourage a more stable scroll position when toggling list items (cf AccountsScreen.hs)
-    scrollTop = vScrollToBeginning $ viewportScroll "register"
+      where
+        -- Encourage a more stable scroll position when toggling list items (cf AccountsScreen.hs)
+        scrollTop = vScrollToBeginning $ viewportScroll "register"
 
 rsHandle _ _ = error "event handler called with wrong screen type, should not happen"

hledger-ui/Hledger/UI/TransactionScreen.hs

@@ -8,25 +8,15 @@ module Hledger.UI.TransactionScreen
  )
 where
 
--- import Lens.Micro.Platform ((^.))
 import Control.Monad.IO.Class (liftIO)
 import Data.List
--- import Data.List.Split (splitOn)
--- import Data.Ord
 import Data.Monoid
--- import Data.Maybe
--- import Data.Text (Text)
 import qualified Data.Text as T
 import Data.Time.Calendar (Day)
--- import qualified Data.Vector as V
 import Graphics.Vty
--- import Safe (headDef, lastDef)
 import Brick
 import Brick.Widgets.List (listMoveTo)
 import Brick.Widgets.Border (borderAttr)
--- import Brick.Widgets.Border.Style
--- import Brick.Widgets.Center
--- import Text.Printf
 
 import Hledger
 import Hledger.Cli hiding (progname,prognameandversion,green)
@@ -131,7 +121,7 @@ tsHandle ui@UIState{aScreen=s@TransactionScreen{tsTransaction=(i,t)
       case ev of
         EvKey (KChar 'q') [] -> halt ui
         EvKey KEsc        [] -> continue $ resetScreens d ui
-        EvKey k [] | k `elem` [KChar 'h', KChar '?'] -> continue $ setMode Help ui
+        EvKey (KChar c)   [] | c `elem` ['h','?'] -> continue $ setMode Help ui
         EvKey (KChar 'g') [] -> do
           d <- liftIO getCurrentDay
           (ej, _) <- liftIO $ journalReloadIfChanged copts d j