transactions are balanced possibly using explicit prices, but without inferring any prices. This is included in --strict mode. Renames check autobalanced to check balancedwithautoconversion.
		
			
				
	
	
		
			384 lines
		
	
	
		
			18 KiB
		
	
	
	
		
			Haskell
		
	
	
	
	
	
			
		
		
	
	
			384 lines
		
	
	
		
			18 KiB
		
	
	
	
		
			Haskell
		
	
	
	
	
	
-- The accounts screen, showing accounts and balances like the CLI balance command.
 | 
						|
 | 
						|
{-# LANGUAGE OverloadedStrings #-}
 | 
						|
{-# LANGUAGE RecordWildCards #-}
 | 
						|
 | 
						|
module Hledger.UI.AccountsScreen
 | 
						|
 (accountsScreen
 | 
						|
 ,asInit
 | 
						|
 ,asSetSelectedAccount
 | 
						|
 )
 | 
						|
where
 | 
						|
 | 
						|
import Brick
 | 
						|
import Brick.Widgets.List
 | 
						|
  (handleListEvent, list, listElementsL, listMoveDown, listMoveTo, listNameL, listSelectedElement, listSelectedL, renderList)
 | 
						|
import Brick.Widgets.Edit
 | 
						|
import Control.Monad
 | 
						|
import Control.Monad.IO.Class (liftIO)
 | 
						|
import Data.List
 | 
						|
import Data.Maybe
 | 
						|
import qualified Data.Text as T
 | 
						|
import Data.Time.Calendar (Day, addDays)
 | 
						|
import qualified Data.Vector as V
 | 
						|
import Graphics.Vty (Event(..),Key(..),Modifier(..))
 | 
						|
import Lens.Micro.Platform
 | 
						|
import Safe
 | 
						|
import System.Console.ANSI
 | 
						|
import System.FilePath (takeFileName)
 | 
						|
 | 
						|
import Hledger
 | 
						|
import Hledger.Cli hiding (progname,prognameandversion)
 | 
						|
import Hledger.UI.UIOptions
 | 
						|
import Hledger.UI.UITypes
 | 
						|
import Hledger.UI.UIState
 | 
						|
import Hledger.UI.UIUtils
 | 
						|
import Hledger.UI.Editor
 | 
						|
import Hledger.UI.RegisterScreen
 | 
						|
import Hledger.UI.ErrorScreen
 | 
						|
 | 
						|
 | 
						|
accountsScreen :: Screen
 | 
						|
accountsScreen = AccountsScreen{
 | 
						|
   sInit   = asInit
 | 
						|
  ,sDraw   = asDraw
 | 
						|
  ,sHandle = asHandle
 | 
						|
  ,_asList            = list AccountsList V.empty 1
 | 
						|
  ,_asSelectedAccount = ""
 | 
						|
  }
 | 
						|
 | 
						|
asInit :: Day -> Bool -> UIState -> UIState
 | 
						|
asInit d reset ui@UIState{
 | 
						|
  aopts=UIOpts{cliopts_=CliOpts{reportspec_=rspec@ReportSpec{rsOpts=ropts}}},
 | 
						|
  ajournal=j,
 | 
						|
  aScreen=s@AccountsScreen{}
 | 
						|
  } =
 | 
						|
  ui{aScreen=s & asList .~ newitems'}
 | 
						|
   where
 | 
						|
    newitems = list AccountsList (V.fromList $ displayitems ++ blankitems) 1
 | 
						|
 | 
						|
    -- decide which account is selected:
 | 
						|
    -- if reset is true, the first account;
 | 
						|
    -- otherwise, the previously selected account if possible;
 | 
						|
    -- otherwise, the first account with the same prefix (eg first leaf account when entering flat mode);
 | 
						|
    -- otherwise, the alphabetically preceding account.
 | 
						|
    newitems' = listMoveTo selidx newitems
 | 
						|
      where
 | 
						|
        selidx = case (reset, listSelectedElement $ _asList s) of
 | 
						|
                   (True, _)               -> 0
 | 
						|
                   (_, Nothing)            -> 0
 | 
						|
                   (_, Just (_,AccountsScreenItem{asItemAccountName=a})) ->
 | 
						|
                     headDef 0 $ catMaybes [
 | 
						|
                       findIndex (a ==) as
 | 
						|
                      ,findIndex (a `isAccountNamePrefixOf`) as
 | 
						|
                      ,Just $ max 0 (length (filter (< a) as) - 1)
 | 
						|
                      ]
 | 
						|
                      where
 | 
						|
                        as = map asItemAccountName displayitems
 | 
						|
 | 
						|
    -- Further restrict the query based on the current period and future/forecast mode.
 | 
						|
    rspec' = rspec{rsQuery=simplifyQuery $ And [rsQuery rspec, periodq, excludeforecastq (forecast_ ropts)]}
 | 
						|
      where
 | 
						|
        periodq = Date $ periodAsDateSpan $ period_ ropts
 | 
						|
        -- Except in forecast mode, exclude future/forecast transactions.
 | 
						|
        excludeforecastq (Just _) = Any
 | 
						|
        excludeforecastq Nothing  =  -- not:date:tomorrow- not:tag:generated-transaction
 | 
						|
          And [
 | 
						|
             Not (Date $ DateSpan (Just $ addDays 1 d) Nothing)
 | 
						|
            ,Not generatedTransactionTag
 | 
						|
          ]
 | 
						|
 | 
						|
    -- run the report
 | 
						|
    (items,_total) = balanceReport rspec' j
 | 
						|
 | 
						|
    -- pre-render the list items
 | 
						|
    displayitem (fullacct, shortacct, indent, bal) =
 | 
						|
      AccountsScreenItem{asItemIndentLevel        = indent
 | 
						|
                        ,asItemAccountName        = fullacct
 | 
						|
                        ,asItemDisplayAccountName = replaceHiddenAccountsNameWith "All" $ if tree_ ropts then shortacct else fullacct
 | 
						|
                        ,asItemMixedAmount        = Just bal
 | 
						|
                        }
 | 
						|
    displayitems = map displayitem items
 | 
						|
    -- blanks added for scrolling control, cf RegisterScreen.
 | 
						|
    -- XXX Ugly. Changing to 0 helps when debugging.
 | 
						|
    blankitems = replicate 100
 | 
						|
      AccountsScreenItem{asItemIndentLevel        = 0
 | 
						|
                        ,asItemAccountName        = ""
 | 
						|
                        ,asItemDisplayAccountName = ""
 | 
						|
                        ,asItemMixedAmount        = Nothing
 | 
						|
                        }
 | 
						|
 | 
						|
 | 
						|
asInit _ _ _ = error "init function called with wrong screen type, should not happen"  -- PARTIAL:
 | 
						|
 | 
						|
asDraw :: UIState -> [Widget Name]
 | 
						|
asDraw UIState{aopts=_uopts@UIOpts{cliopts_=copts@CliOpts{reportspec_=rspec}}
 | 
						|
              ,ajournal=j
 | 
						|
              ,aScreen=s@AccountsScreen{}
 | 
						|
              ,aMode=mode
 | 
						|
              } =
 | 
						|
    case mode of
 | 
						|
      Help       -> [helpDialog copts, maincontent]
 | 
						|
      -- Minibuffer e -> [minibuffer e, maincontent]
 | 
						|
      _          -> [maincontent]
 | 
						|
  where
 | 
						|
    maincontent = Widget Greedy Greedy $ do
 | 
						|
      c <- getContext
 | 
						|
      let
 | 
						|
        availwidth =
 | 
						|
          -- ltrace "availwidth" $
 | 
						|
          c^.availWidthL
 | 
						|
          - 2 -- XXX due to margin ? shouldn't be necessary (cf UIUtils)
 | 
						|
        displayitems = s ^. asList . listElementsL
 | 
						|
 | 
						|
        acctwidths = V.map (\AccountsScreenItem{..} -> asItemIndentLevel + Hledger.Cli.textWidth asItemDisplayAccountName) displayitems
 | 
						|
        balwidths  = V.map (maybe 0 (wbWidth . showMixedAmountB oneLine) . asItemMixedAmount) displayitems
 | 
						|
        preferredacctwidth = V.maximum acctwidths
 | 
						|
        totalacctwidthseen = V.sum acctwidths
 | 
						|
        preferredbalwidth  = V.maximum balwidths
 | 
						|
        totalbalwidthseen  = V.sum balwidths
 | 
						|
 | 
						|
        totalwidthseen = totalacctwidthseen + totalbalwidthseen
 | 
						|
        shortfall = preferredacctwidth + preferredbalwidth + 2 - availwidth
 | 
						|
        acctwidthproportion = fromIntegral totalacctwidthseen / fromIntegral totalwidthseen
 | 
						|
        adjustedacctwidth = min preferredacctwidth . max 15 . round $ acctwidthproportion * fromIntegral (availwidth - 2)  -- leave 2 whitespace for padding
 | 
						|
        adjustedbalwidth  = availwidth - 2 - adjustedacctwidth
 | 
						|
 | 
						|
        -- XXX how to minimise the balance column's jumping around as you change the depth limit ?
 | 
						|
 | 
						|
        colwidths | shortfall <= 0 = (preferredacctwidth, preferredbalwidth)
 | 
						|
                  | otherwise      = (adjustedacctwidth, adjustedbalwidth)
 | 
						|
 | 
						|
      render $ defaultLayout toplabel bottomlabel $ renderList (asDrawItem colwidths) True (_asList s)
 | 
						|
 | 
						|
      where
 | 
						|
        ropts = rsOpts rspec
 | 
						|
        ishistorical = balancetype_ ropts == HistoricalBalance
 | 
						|
 | 
						|
        toplabel =
 | 
						|
              withAttr ("border" <> "filename") files
 | 
						|
          <+> toggles
 | 
						|
          <+> str (" account " ++ if ishistorical then "balances" else "changes")
 | 
						|
          <+> borderPeriodStr (if ishistorical then "at end of" else "in") (period_ ropts)
 | 
						|
          <+> borderQueryStr (T.unpack . T.unwords . map textQuoteIfNeeded $ querystring_ ropts)
 | 
						|
          <+> borderDepthStr mdepth
 | 
						|
          <+> str (" ("++curidx++"/"++totidx++")")
 | 
						|
          <+> (if ignore_assertions_ . balancingopts_ $ inputopts_ copts
 | 
						|
               then withAttr ("border" <> "query") (str " ignoring balance assertions")
 | 
						|
               else str "")
 | 
						|
          where
 | 
						|
            files = case journalFilePaths j of
 | 
						|
                           [] -> str ""
 | 
						|
                           f:_ -> str $ takeFileName f
 | 
						|
                           -- [f,_:[]] -> (withAttr ("border" <> "bold") $ str $ takeFileName f) <+> str " (& 1 included file)"
 | 
						|
                           -- f:fs  -> (withAttr ("border" <> "bold") $ str $ takeFileName f) <+> str (" (& " ++ show (length fs) ++ " included files)")
 | 
						|
            toggles = withAttr ("border" <> "query") $ str $ unwords $ concat [
 | 
						|
               [""]
 | 
						|
              ,if empty_ ropts then [] else ["nonzero"]
 | 
						|
              ,uiShowStatus copts $ statuses_ ropts
 | 
						|
              ,if real_ ropts then ["real"] else []
 | 
						|
              ]
 | 
						|
            mdepth = depth_ ropts
 | 
						|
            curidx = case _asList s ^. listSelectedL of
 | 
						|
                       Nothing -> "-"
 | 
						|
                       Just i -> show (i + 1)
 | 
						|
            totidx = show $ V.length nonblanks
 | 
						|
              where
 | 
						|
                nonblanks = V.takeWhile (not . T.null . asItemAccountName) $ s ^. asList . listElementsL
 | 
						|
 | 
						|
        bottomlabel = case mode of
 | 
						|
                        Minibuffer ed -> minibuffer ed
 | 
						|
                        _             -> quickhelp
 | 
						|
          where
 | 
						|
            quickhelp = borderKeysStr' [
 | 
						|
               ("?", str "help")
 | 
						|
--              ,("RIGHT", str "register")
 | 
						|
              ,("t", renderToggle (tree_ ropts) "list" "tree")
 | 
						|
              -- ,("t", str "tree")
 | 
						|
              -- ,("l", str "list")
 | 
						|
              ,("-+", str "depth")
 | 
						|
              ,("H", renderToggle (not ishistorical) "end-bals" "changes")
 | 
						|
              ,("F", renderToggle1 (isJust $ forecast_ ropts) "forecast")
 | 
						|
              --,("/", "filter")
 | 
						|
              --,("DEL", "unfilter")
 | 
						|
              --,("ESC", "cancel/top")
 | 
						|
              ,("a", str "add")
 | 
						|
--               ,("g", "reload")
 | 
						|
              ,("q", str "quit")
 | 
						|
              ]
 | 
						|
 | 
						|
asDraw _ = error "draw function called with wrong screen type, should not happen"  -- PARTIAL:
 | 
						|
 | 
						|
asDrawItem :: (Int,Int) -> Bool -> AccountsScreenItem -> Widget Name
 | 
						|
asDrawItem (acctwidth, balwidth) selected AccountsScreenItem{..} =
 | 
						|
  Widget Greedy Fixed $ do
 | 
						|
    -- c <- getContext
 | 
						|
      -- let showitem = intercalate "\n" . balanceReportItemAsText defreportopts fmt
 | 
						|
    render $
 | 
						|
      txt (fitText (Just acctwidth) (Just acctwidth) True True $ T.replicate (asItemIndentLevel) " " <> asItemDisplayAccountName) <+>
 | 
						|
      txt balspace <+>
 | 
						|
      splitAmounts balBuilder
 | 
						|
      where
 | 
						|
        balBuilder = maybe mempty showamt asItemMixedAmount
 | 
						|
        showamt = showMixedAmountB oneLine{displayMinWidth=Just balwidth, displayMaxWidth=Just balwidth}
 | 
						|
        balspace = T.replicate (2 + balwidth - wbWidth balBuilder) " "
 | 
						|
        splitAmounts = foldr1 (<+>) . intersperse (str ", ") . map renderamt . T.splitOn ", " . wbToText
 | 
						|
        renderamt :: T.Text -> Widget Name
 | 
						|
        renderamt a | T.any (=='-') a = withAttr (sel $ "list" <> "balance" <> "negative") $ txt a
 | 
						|
                    | otherwise       = withAttr (sel $ "list" <> "balance" <> "positive") $ txt a
 | 
						|
        sel | selected  = (<> "selected")
 | 
						|
            | otherwise = id
 | 
						|
 | 
						|
asHandle :: UIState -> BrickEvent Name AppEvent -> EventM Name (Next UIState)
 | 
						|
asHandle ui0@UIState{
 | 
						|
   aScreen=scr@AccountsScreen{..}
 | 
						|
  ,aopts=UIOpts{cliopts_=copts}
 | 
						|
  ,ajournal=j
 | 
						|
  ,aMode=mode
 | 
						|
  } ev = do
 | 
						|
  d <- liftIO getCurrentDay
 | 
						|
  let
 | 
						|
    nonblanks = V.takeWhile (not . T.null . asItemAccountName) $ _asList^.listElementsL
 | 
						|
    lastnonblankidx = max 0 (length nonblanks - 1)
 | 
						|
 | 
						|
  -- save the currently selected account, in case we leave this screen and lose the selection
 | 
						|
  let
 | 
						|
    selacct = case listSelectedElement _asList of
 | 
						|
                Just (_, AccountsScreenItem{..}) -> asItemAccountName
 | 
						|
                Nothing -> scr ^. asSelectedAccount
 | 
						|
    ui = ui0{aScreen=scr & asSelectedAccount .~ selacct}
 | 
						|
 | 
						|
  case mode of
 | 
						|
    Minibuffer ed ->
 | 
						|
      case ev of
 | 
						|
        VtyEvent (EvKey KEsc   []) -> continue $ closeMinibuffer ui
 | 
						|
        VtyEvent (EvKey KEnter []) -> continue $ regenerateScreens j d $ setFilter s $ closeMinibuffer ui
 | 
						|
                            where s = chomp $ unlines $ map strip $ getEditContents ed
 | 
						|
        VtyEvent (EvKey (KChar 'l') [MCtrl]) -> redraw ui
 | 
						|
        VtyEvent (EvKey (KChar 'z') [MCtrl]) -> suspend ui
 | 
						|
        VtyEvent ev        -> do ed' <- handleEditorEvent ev ed
 | 
						|
                                 continue $ ui{aMode=Minibuffer ed'}
 | 
						|
        AppEvent _        -> continue ui
 | 
						|
        MouseDown _ _ _ _ -> continue ui
 | 
						|
        MouseUp _ _ _     -> continue ui
 | 
						|
 | 
						|
    Help ->
 | 
						|
      case ev of
 | 
						|
        -- VtyEvent (EvKey (KChar 'q') []) -> halt ui
 | 
						|
        VtyEvent (EvKey (KChar 'l') [MCtrl]) -> redraw ui
 | 
						|
        VtyEvent (EvKey (KChar 'z') [MCtrl]) -> suspend ui
 | 
						|
        _                    -> helpHandle ui ev
 | 
						|
 | 
						|
    Normal ->
 | 
						|
      case ev of
 | 
						|
        VtyEvent (EvKey (KChar 'q') []) -> halt ui
 | 
						|
        -- EvKey (KChar 'l') [MCtrl] -> do
 | 
						|
        VtyEvent (EvKey KEsc        []) -> continue $ resetScreens d ui
 | 
						|
        VtyEvent (EvKey (KChar c)   []) | c `elem` ['?'] -> continue $ setMode Help ui
 | 
						|
        -- XXX AppEvents currently handled only in Normal mode
 | 
						|
        -- XXX be sure we don't leave unconsumed events piling up
 | 
						|
        AppEvent (DateChange old _) | isStandardPeriod p && p `periodContainsDate` old ->
 | 
						|
          continue $ regenerateScreens j d $ setReportPeriod (DayPeriod d) ui
 | 
						|
          where
 | 
						|
            p = reportPeriod ui
 | 
						|
        e | e `elem` [VtyEvent (EvKey (KChar 'g') []), AppEvent FileChange] ->
 | 
						|
          liftIO (uiReloadJournal copts d ui) >>= continue
 | 
						|
        VtyEvent (EvKey (KChar 'I') []) -> continue $ uiCheckBalanceAssertions d (toggleIgnoreBalanceAssertions ui)
 | 
						|
        VtyEvent (EvKey (KChar 'a') []) -> suspendAndResume $ clearScreen >> setCursorPosition 0 0 >> add copts j >> uiReloadJournalIfChanged copts d j ui
 | 
						|
        VtyEvent (EvKey (KChar 'A') []) -> suspendAndResume $ void (runIadd (journalFilePath j)) >> uiReloadJournalIfChanged copts d j ui
 | 
						|
        VtyEvent (EvKey (KChar 'E') []) -> suspendAndResume $ void (runEditor endPosition (journalFilePath j)) >> uiReloadJournalIfChanged copts d j ui
 | 
						|
        VtyEvent (EvKey (KChar 'B') []) -> continue $ regenerateScreens j d $ toggleCost ui
 | 
						|
        VtyEvent (EvKey (KChar 'V') []) -> continue $ regenerateScreens j d $ toggleValue ui
 | 
						|
        VtyEvent (EvKey (KChar '0') []) -> continue $ regenerateScreens j d $ setDepth (Just 0) ui
 | 
						|
        VtyEvent (EvKey (KChar '1') []) -> continue $ regenerateScreens j d $ setDepth (Just 1) ui
 | 
						|
        VtyEvent (EvKey (KChar '2') []) -> continue $ regenerateScreens j d $ setDepth (Just 2) ui
 | 
						|
        VtyEvent (EvKey (KChar '3') []) -> continue $ regenerateScreens j d $ setDepth (Just 3) ui
 | 
						|
        VtyEvent (EvKey (KChar '4') []) -> continue $ regenerateScreens j d $ setDepth (Just 4) ui
 | 
						|
        VtyEvent (EvKey (KChar '5') []) -> continue $ regenerateScreens j d $ setDepth (Just 5) ui
 | 
						|
        VtyEvent (EvKey (KChar '6') []) -> continue $ regenerateScreens j d $ setDepth (Just 6) ui
 | 
						|
        VtyEvent (EvKey (KChar '7') []) -> continue $ regenerateScreens j d $ setDepth (Just 7) ui
 | 
						|
        VtyEvent (EvKey (KChar '8') []) -> continue $ regenerateScreens j d $ setDepth (Just 8) ui
 | 
						|
        VtyEvent (EvKey (KChar '9') []) -> continue $ regenerateScreens j d $ setDepth (Just 9) ui
 | 
						|
        VtyEvent (EvKey (KChar '-') []) -> continue $ regenerateScreens j d $ decDepth ui
 | 
						|
        VtyEvent (EvKey (KChar '_') []) -> continue $ regenerateScreens j d $ decDepth ui
 | 
						|
        VtyEvent (EvKey (KChar c)   []) | c `elem` ['+','='] -> continue $ regenerateScreens j d $ incDepth ui
 | 
						|
        VtyEvent (EvKey (KChar 'T') []) -> continue $ regenerateScreens j d $ setReportPeriod (DayPeriod d) ui
 | 
						|
 | 
						|
        -- display mode/query toggles
 | 
						|
        VtyEvent (EvKey (KChar 'H') []) -> asCenterAndContinue $ regenerateScreens j d $ toggleHistorical ui
 | 
						|
        VtyEvent (EvKey (KChar 't') []) -> asCenterAndContinue $ regenerateScreens j d $ toggleTree ui
 | 
						|
        VtyEvent (EvKey (KChar 'Z') []) -> asCenterAndContinue $ regenerateScreens j d $ toggleEmpty ui
 | 
						|
        VtyEvent (EvKey (KChar 'R') []) -> asCenterAndContinue $ regenerateScreens j d $ toggleReal ui
 | 
						|
        VtyEvent (EvKey (KChar 'U') []) -> asCenterAndContinue $ regenerateScreens j d $ toggleUnmarked ui
 | 
						|
        VtyEvent (EvKey (KChar 'P') []) -> asCenterAndContinue $ regenerateScreens j d $ togglePending ui
 | 
						|
        VtyEvent (EvKey (KChar 'C') []) -> asCenterAndContinue $ regenerateScreens j d $ toggleCleared ui
 | 
						|
        VtyEvent (EvKey (KChar 'F') []) -> continue $ regenerateScreens j d $ toggleForecast d ui
 | 
						|
 | 
						|
        VtyEvent (EvKey (KDown)     [MShift]) -> continue $ regenerateScreens j d $ shrinkReportPeriod d ui
 | 
						|
        VtyEvent (EvKey (KUp)       [MShift]) -> continue $ regenerateScreens j d $ growReportPeriod d ui
 | 
						|
        VtyEvent (EvKey (KRight)    [MShift]) -> continue $ regenerateScreens j d $ nextReportPeriod journalspan ui
 | 
						|
        VtyEvent (EvKey (KLeft)     [MShift]) -> continue $ regenerateScreens j d $ previousReportPeriod journalspan ui
 | 
						|
        VtyEvent (EvKey (KChar '/') []) -> continue $ regenerateScreens j d $ showMinibuffer ui
 | 
						|
        VtyEvent (EvKey k           []) | k `elem` [KBS, KDel] -> (continue $ regenerateScreens j d $ resetFilter ui)
 | 
						|
        VtyEvent e | e `elem` moveLeftEvents -> continue $ popScreen ui
 | 
						|
        VtyEvent (EvKey (KChar 'l') [MCtrl]) -> scrollSelectionToMiddle _asList >> redraw ui
 | 
						|
        VtyEvent (EvKey (KChar 'z') [MCtrl]) -> suspend ui
 | 
						|
 | 
						|
        -- enter register screen for selected account (if there is one),
 | 
						|
        -- centering its selected transaction if possible
 | 
						|
        VtyEvent e | e `elem` moveRightEvents
 | 
						|
                   , not $ isBlankElement $ listSelectedElement _asList->
 | 
						|
          -- TODO center selection after entering register screen; neither of these works till second time entering; easy strictifications didn't help
 | 
						|
          rsCenterAndContinue $
 | 
						|
          -- flip rsHandle (VtyEvent (EvKey (KChar 'l') [MCtrl])) $
 | 
						|
            screenEnter d regscr ui
 | 
						|
          where
 | 
						|
            regscr = rsSetAccount selacct isdepthclipped registerScreen
 | 
						|
            isdepthclipped = case getDepth ui of
 | 
						|
                                Just d  -> accountNameLevel selacct >= d
 | 
						|
                                Nothing -> False
 | 
						|
 | 
						|
        -- prevent moving down over blank padding items;
 | 
						|
        -- instead scroll down by one, until maximally scrolled - shows the end has been reached
 | 
						|
        VtyEvent (EvKey (KDown)     []) | isBlankElement mnextelement -> do
 | 
						|
          vScrollBy (viewportScroll $ _asList^.listNameL) 1
 | 
						|
          continue ui
 | 
						|
          where
 | 
						|
            mnextelement = listSelectedElement $ listMoveDown _asList
 | 
						|
 | 
						|
        -- if page down or end leads to a blank padding item, stop at last non-blank
 | 
						|
        VtyEvent e@(EvKey k           []) | k `elem` [KPageDown, KEnd] -> do
 | 
						|
          list <- handleListEvent e _asList
 | 
						|
          if isBlankElement $ listSelectedElement list
 | 
						|
          then do
 | 
						|
            let list' = listMoveTo lastnonblankidx list
 | 
						|
            scrollSelectionToMiddle list'
 | 
						|
            continue ui{aScreen=scr{_asList=list'}}
 | 
						|
          else
 | 
						|
            continue ui{aScreen=scr{_asList=list}}
 | 
						|
 | 
						|
        -- fall through to the list's event handler (handles up/down)
 | 
						|
        VtyEvent ev -> do
 | 
						|
          newitems <- handleListEvent (normaliseMovementKeys ev) _asList
 | 
						|
          continue $ ui{aScreen=scr & asList .~ newitems
 | 
						|
                                    & asSelectedAccount .~ selacct
 | 
						|
                                    }
 | 
						|
 | 
						|
        AppEvent _        -> continue ui
 | 
						|
        MouseDown _ _ _ _ -> continue ui
 | 
						|
        MouseUp _ _ _     -> continue ui
 | 
						|
 | 
						|
  where
 | 
						|
    journalspan = journalDateSpan False j
 | 
						|
 | 
						|
asHandle _ _ = error "event handler called with wrong screen type, should not happen"  -- PARTIAL:
 | 
						|
 | 
						|
asSetSelectedAccount a s@AccountsScreen{} = s & asSelectedAccount .~ a
 | 
						|
asSetSelectedAccount _ s = s
 | 
						|
 | 
						|
isBlankElement mel = ((asItemAccountName . snd) <$> mel) == Just ""
 | 
						|
 | 
						|
asCenterAndContinue ui = do
 | 
						|
  scrollSelectionToMiddle $ _asList $ aScreen ui
 | 
						|
  continue ui
 |