dev: ui: asHandle refactor, cleanup
This commit is contained in:
Simon Michael
parent
a3c0716133
commit
3fbef8ab88
@ -3,6 +3,7 @@
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{-# LANGUAGE CPP #-}
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{-# LANGUAGE OverloadedStrings #-}
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{-# LANGUAGE RecordWildCards #-}
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{-# LANGUAGE TupleSections #-}
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module Hledger.UI.AccountsScreen
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(asNew
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@ -41,6 +42,8 @@ import Hledger.UI.UIScreens
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import Hledger.UI.Editor
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import Hledger.UI.ErrorScreen (uiReloadJournal, uiCheckBalanceAssertions, uiReloadJournalIfChanged)
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import Hledger.UI.RegisterScreen (rsCenterSelection)
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import Data.Either (fromRight)
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import Control.Arrow ((>>>))
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asDraw :: UIState -> [Widget Name]
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@ -56,7 +59,7 @@ asDraw ui = dlogUiTrace "asDraw 1" $ asDrawHelper ui ropts' scrname showbalchgke
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-- The other arguments are the screen display name and whether to show a key
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-- for toggling between end balance and balance change mode.
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asDrawHelper :: UIState -> ReportOpts -> String -> Bool -> [Widget Name]
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asDrawHelper UIState{aopts=uopts, ajournal=j, aScreen=AS sst, aMode=mode} ropts scrname showbalchgkey =
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asDrawHelper UIState{aopts=uopts, ajournal=j, aScreen=AS sst, aMode=mode} ropts scrname showbalchgkey =
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dlogUiTrace "asDraw 1" $
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case mode of
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Help -> [helpDialog, maincontent]
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@ -180,152 +183,157 @@ asHandle ev = do
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,aMode=mode
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,aScreen=AS sst
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} -> do
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let
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l = _assList sst
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-- save the currently selected account, in case we leave this screen and lose the selection
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selacct = case listSelectedElement $ _assList sst of
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selacct = case listSelectedElement l of
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Just (_, AccountsScreenItem{..}) -> asItemAccountName
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Nothing -> sst ^. assSelectedAccount
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clickedAcctAt y =
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case asItemAccountName <$> listElements l !? y of
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Just t | not $ T.null t -> Just t
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_ -> Nothing
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ui = ui1{aScreen=AS sst{_assSelectedAccount=selacct}}
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nonblanks = V.takeWhile (not . T.null . asItemAccountName) $ listElements $ _assList sst
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nonblanks = V.takeWhile (not . T.null . asItemAccountName) $ listElements l
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lastnonblankidx = max 0 (length nonblanks - 1)
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journalspan = journalDateSpan False j
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centerSelection = scrollSelectionToMiddle l
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d <- liftIO getCurrentDay
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case mode of
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Minibuffer _ ed ->
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Minibuffer _ ed -> handleMinibufferMode ui ed ev
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Help -> handleHelpMode ui ev
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Normal ->
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case ev of
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VtyEvent (EvKey KEsc []) -> put' $ closeMinibuffer ui
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VtyEvent (EvKey KEnter []) -> put' $ regenerateScreens j d $
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case setFilter s $ closeMinibuffer ui of
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Left bad -> showMinibuffer "Cannot compile regular expression" (Just bad) ui
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Right ui' -> ui'
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where s = chomp $ unlines $ map strip $ getEditContents ed
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VtyEvent (EvKey (KChar 'l') [MCtrl]) -> redraw
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VtyEvent (EvKey (KChar 'z') [MCtrl]) -> suspend ui
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VtyEvent e -> do
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ed' <- nestEventM' ed $ handleEditorEvent (VtyEvent e)
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put' ui{aMode=Minibuffer "filter" ed'}
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AppEvent _ -> return ()
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MouseDown{} -> return ()
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MouseUp{} -> return ()
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Help ->
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case ev of
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-- VtyEvent (EvKey (KChar 'q') []) -> halt
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VtyEvent (EvKey (KChar 'l') [MCtrl]) -> redraw
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VtyEvent (EvKey (KChar 'z') [MCtrl]) -> suspend ui
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_ -> helpHandle ev
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Normal ->
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case ev of
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VtyEvent (EvKey (KChar 'q') []) -> halt
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-- EvKey (KChar 'l') [MCtrl] -> do
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VtyEvent (EvKey KEsc []) -> put' $ resetScreens d ui
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VtyEvent (EvKey (KChar c) []) | c == '?' -> put' $ setMode Help ui
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-- XXX AppEvents currently handled only in Normal mode
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-- XXX be sure we don't leave unconsumed events piling up
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-- Event handlers in this first group don't mention the screen or state type:
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--
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VtyEvent (EvKey (KChar 'q') []) -> halt -- q: quit
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VtyEvent (EvKey (KChar 'z') [MCtrl]) -> suspend ui -- C-z: suspend
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VtyEvent (EvKey (KChar 'l') [MCtrl]) -> centerSelection >> redraw -- C-l: redraw
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VtyEvent (EvKey KEsc []) -> modify' (resetScreens d) -- ESC: reset
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VtyEvent (EvKey (KChar c) []) | c == '?' -> modify' (setMode Help) -- ?: enter help mode
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-- LEFT key or a click in the app's left margin: exit to the parent screen.
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VtyEvent e | e `elem` moveLeftEvents -> modify' popScreen
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VtyEvent (EvMouseUp 0 _ (Just BLeft)) -> modify' popScreen -- this mouse click is a VtyEvent since not in a clickable widget
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-- App events: these do not come from the UI, they are received when --watch is used.
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-- XXX currently these are handled only in Normal mode
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-- XXX be sure we don't leave unconsumed app events piling up
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-- A data file has changed (or the user has pressed g): reload.
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e | e `elem` [AppEvent FileChange, VtyEvent (EvKey (KChar 'g') [])] -> liftIO (uiReloadJournal copts d ui) >>= put'
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-- The date has changed (and we are viewing a standard period which contained the old date):
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-- adjust the viewed period and regenerate, just in case needed.
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-- (Eg: when watching data for "today" and the time has just passed midnight.)
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AppEvent (DateChange old _) | isStandardPeriod p && p `periodContainsDate` old ->
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put' $ regenerateScreens j d $ setReportPeriod (DayPeriod d) ui
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where
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p = reportPeriod ui
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e | e `elem` [VtyEvent (EvKey (KChar 'g') []), AppEvent FileChange] ->
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liftIO (uiReloadJournal copts d ui) >>= put'
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VtyEvent (EvKey (KChar 'I') []) -> put' $ uiCheckBalanceAssertions d (toggleIgnoreBalanceAssertions ui)
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modify' (setReportPeriod (DayPeriod d) >>> regenerateScreens j d)
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where p = reportPeriod ui
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--
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-- set or reset a filter:
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VtyEvent (EvKey (KChar '/') []) -> modify' (showMinibuffer "filter" Nothing >>> regenerateScreens j d)
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VtyEvent (EvKey k []) | k `elem` [KBS, KDel] -> modify' (resetFilter >>> regenerateScreens j d)
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-- run external programs:
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VtyEvent (EvKey (KChar 'a') []) -> suspendAndResume $ clearScreen >> setCursorPosition 0 0 >> add copts j >> uiReloadJournalIfChanged copts d j ui
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VtyEvent (EvKey (KChar 'A') []) -> suspendAndResume $ void (runIadd (journalFilePath j)) >> uiReloadJournalIfChanged copts d j ui
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VtyEvent (EvKey (KChar 'E') []) -> suspendAndResume $ void (runEditor endPosition (journalFilePath j)) >> uiReloadJournalIfChanged copts d j ui
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VtyEvent (EvKey (KChar 'B') []) -> put' $ regenerateScreens j d $ toggleConversionOp ui
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VtyEvent (EvKey (KChar 'V') []) -> put' $ regenerateScreens j d $ toggleValue ui
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VtyEvent (EvKey (KChar '0') []) -> put' $ regenerateScreens j d $ setDepth (Just 0) ui
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VtyEvent (EvKey (KChar '1') []) -> put' $ regenerateScreens j d $ setDepth (Just 1) ui
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VtyEvent (EvKey (KChar '2') []) -> put' $ regenerateScreens j d $ setDepth (Just 2) ui
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VtyEvent (EvKey (KChar '3') []) -> put' $ regenerateScreens j d $ setDepth (Just 3) ui
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VtyEvent (EvKey (KChar '4') []) -> put' $ regenerateScreens j d $ setDepth (Just 4) ui
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VtyEvent (EvKey (KChar '5') []) -> put' $ regenerateScreens j d $ setDepth (Just 5) ui
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VtyEvent (EvKey (KChar '6') []) -> put' $ regenerateScreens j d $ setDepth (Just 6) ui
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VtyEvent (EvKey (KChar '7') []) -> put' $ regenerateScreens j d $ setDepth (Just 7) ui
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VtyEvent (EvKey (KChar '8') []) -> put' $ regenerateScreens j d $ setDepth (Just 8) ui
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VtyEvent (EvKey (KChar '9') []) -> put' $ regenerateScreens j d $ setDepth (Just 9) ui
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VtyEvent (EvKey (KChar '-') []) -> put' $ regenerateScreens j d $ decDepth ui
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VtyEvent (EvKey (KChar '_') []) -> put' $ regenerateScreens j d $ decDepth ui
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VtyEvent (EvKey (KChar c) []) | c `elem` ['+','='] -> put' $ regenerateScreens j d $ incDepth ui
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VtyEvent (EvKey (KChar 'T') []) -> put' $ regenerateScreens j d $ setReportPeriod (DayPeriod d) ui
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-- adjust the period displayed:
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VtyEvent (EvKey (KChar 'T') []) -> modify' (setReportPeriod (DayPeriod d) >>> regenerateScreens j d)
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VtyEvent (EvKey (KDown) [MShift]) -> modify' (shrinkReportPeriod d >>> regenerateScreens j d)
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VtyEvent (EvKey (KUp) [MShift]) -> modify' (growReportPeriod d >>> regenerateScreens j d)
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VtyEvent (EvKey (KRight) [MShift]) -> modify' (nextReportPeriod journalspan >>> regenerateScreens j d)
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VtyEvent (EvKey (KLeft) [MShift]) -> modify' (previousReportPeriod journalspan >>> regenerateScreens j d)
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-- various toggles and settings:
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VtyEvent (EvKey (KChar 'I') []) -> modify' (toggleIgnoreBalanceAssertions >>> uiCheckBalanceAssertions d)
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VtyEvent (EvKey (KChar 'F') []) -> modify' (toggleForecast d >>> regenerateScreens j d)
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VtyEvent (EvKey (KChar 'B') []) -> modify' (toggleConversionOp >>> regenerateScreens j d)
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VtyEvent (EvKey (KChar 'V') []) -> modify' (toggleValue >>> regenerateScreens j d)
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VtyEvent (EvKey (KChar '0') []) -> modify' (setDepth (Just 0) >>> regenerateScreens j d)
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VtyEvent (EvKey (KChar '1') []) -> modify' (setDepth (Just 1) >>> regenerateScreens j d)
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VtyEvent (EvKey (KChar '2') []) -> modify' (setDepth (Just 2) >>> regenerateScreens j d)
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VtyEvent (EvKey (KChar '3') []) -> modify' (setDepth (Just 3) >>> regenerateScreens j d)
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VtyEvent (EvKey (KChar '4') []) -> modify' (setDepth (Just 4) >>> regenerateScreens j d)
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VtyEvent (EvKey (KChar '5') []) -> modify' (setDepth (Just 5) >>> regenerateScreens j d)
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VtyEvent (EvKey (KChar '6') []) -> modify' (setDepth (Just 6) >>> regenerateScreens j d)
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VtyEvent (EvKey (KChar '7') []) -> modify' (setDepth (Just 7) >>> regenerateScreens j d)
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VtyEvent (EvKey (KChar '8') []) -> modify' (setDepth (Just 8) >>> regenerateScreens j d)
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VtyEvent (EvKey (KChar '9') []) -> modify' (setDepth (Just 9) >>> regenerateScreens j d)
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VtyEvent (EvKey (KChar c) []) | c `elem` ['-','_'] -> modify' (decDepth >>> regenerateScreens j d)
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VtyEvent (EvKey (KChar c) []) | c `elem` ['+','='] -> modify' (incDepth >>> regenerateScreens j d)
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-- toggles after which the selection should be recentered:
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VtyEvent (EvKey (KChar 'H') []) -> modify' (toggleHistorical >>> regenerateScreens j d) >> centerSelection
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VtyEvent (EvKey (KChar 't') []) -> modify' (toggleTree >>> regenerateScreens j d) >> centerSelection
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VtyEvent (EvKey (KChar 'R') []) -> modify' (toggleReal >>> regenerateScreens j d) >> centerSelection
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VtyEvent (EvKey (KChar 'U') []) -> modify' (toggleUnmarked >>> regenerateScreens j d) >> centerSelection
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VtyEvent (EvKey (KChar 'P') []) -> modify' (togglePending >>> regenerateScreens j d) >> centerSelection
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VtyEvent (EvKey (KChar 'C') []) -> modify' (toggleCleared >>> regenerateScreens j d) >> centerSelection
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VtyEvent (EvKey (KChar c) []) | c `elem` ['z','Z'] -> modify' (toggleEmpty >>> regenerateScreens j d) >> centerSelection -- back compat: accept Z as well as z
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--
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-- DOWN key when selection is at the last item: scroll instead of moving, until maximally scrolled
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VtyEvent e | e `elem` moveDownEvents, isBlankItem mnextelement -> vScrollBy (viewportScroll $ l^.listNameL) 1
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where mnextelement = listSelectedElement $ listMoveDown l
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-- RIGHT key or MouseUp on an account: enter the register screen for the selected account
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VtyEvent e | e `elem` moveRightEvents, not $ isBlankItem $ listSelectedElement l -> asEnterRegisterScreen d selacct ui
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MouseUp _n (Just BLeft) Location{loc=(_,y)} | Just clkacct <- clickedAcctAt y -> asEnterRegisterScreen d clkacct ui
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-- display mode/query toggles
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VtyEvent (EvKey (KChar 'H') []) -> modify' (regenerateScreens j d . toggleHistorical) >> asCenterAndContinue
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VtyEvent (EvKey (KChar 't') []) -> modify' (regenerateScreens j d . toggleTree) >> asCenterAndContinue
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VtyEvent (EvKey (KChar c) []) | c `elem` ['z','Z'] -> modify' (regenerateScreens j d . toggleEmpty) >> asCenterAndContinue
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VtyEvent (EvKey (KChar 'R') []) -> modify' (regenerateScreens j d . toggleReal) >> asCenterAndContinue
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VtyEvent (EvKey (KChar 'U') []) -> modify' (regenerateScreens j d . toggleUnmarked) >> asCenterAndContinue
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VtyEvent (EvKey (KChar 'P') []) -> modify' (regenerateScreens j d . togglePending) >> asCenterAndContinue
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VtyEvent (EvKey (KChar 'C') []) -> modify' (regenerateScreens j d . toggleCleared) >> asCenterAndContinue
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VtyEvent (EvKey (KChar 'F') []) -> modify' (regenerateScreens j d . toggleForecast d)
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VtyEvent (EvKey (KDown) [MShift]) -> put' $ regenerateScreens j d $ shrinkReportPeriod d ui
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VtyEvent (EvKey (KUp) [MShift]) -> put' $ regenerateScreens j d $ growReportPeriod d ui
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VtyEvent (EvKey (KRight) [MShift]) -> put' $ regenerateScreens j d $ nextReportPeriod journalspan ui
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VtyEvent (EvKey (KLeft) [MShift]) -> put' $ regenerateScreens j d $ previousReportPeriod journalspan ui
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VtyEvent (EvKey (KChar '/') []) -> put' $ regenerateScreens j d $ showMinibuffer "filter" Nothing ui
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VtyEvent (EvKey k []) | k `elem` [KBS, KDel] -> (put' $ regenerateScreens j d $ resetFilter ui)
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VtyEvent e | e `elem` moveLeftEvents -> put' $ popScreen ui
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VtyEvent (EvKey (KChar 'l') [MCtrl]) -> scrollSelectionToMiddle (_assList sst) >> redraw
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VtyEvent (EvKey (KChar 'z') [MCtrl]) -> suspend ui
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-- exit screen on LEFT
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VtyEvent e | e `elem` moveLeftEvents -> put' $ popScreen ui
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-- or on a click in the app's left margin. This is a VtyEvent since not in a clickable widget.
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VtyEvent (EvMouseUp x _y (Just BLeft)) | x==0 -> put' $ popScreen ui
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-- RIGHT enters register screen for selected account (if there is one),
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-- centering its selected transaction if possible
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VtyEvent e | e `elem` moveRightEvents
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, not $ isBlankElement $ listSelectedElement (_assList sst) -> asEnterRegisterScreen d selacct ui
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-- MouseDown is sometimes duplicated, https://github.com/jtdaugherty/brick/issues/347
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-- just use it to move the selection
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MouseDown _n BLeft _mods Location{loc=(_x,y)} | not $ (=="") clickedacct -> do
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-- These event handlers mention the screen type (AS):
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--
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-- MouseDown: this is sometimes duplicated (https://github.com/jtdaugherty/brick/issues/347),
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-- so we use it only to move the selection.
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MouseDown _n BLeft _mods Location{loc=(_,y)} | not $ isBlankItem clickeditem ->
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put' ui{aScreen=AS sst} -- XXX does this do anything ?
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where clickedacct = maybe "" asItemAccountName $ listElements (_assList sst) !? y
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-- and on MouseUp, enter the subscreen
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MouseUp _n (Just BLeft) Location{loc=(_x,y)} | not $ (=="") clickedacct -> do
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asEnterRegisterScreen d clickedacct ui
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where clickedacct = maybe "" asItemAccountName $ listElements (_assList sst) !? y
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-- when selection is at the last item, DOWN scrolls instead of moving, until maximally scrolled
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VtyEvent e | e `elem` moveDownEvents, isBlankElement mnextelement -> do
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vScrollBy (viewportScroll $ (_assList sst)^.listNameL) 1
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where mnextelement = listSelectedElement $ listMoveDown (_assList sst)
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-- mouse scroll wheel scrolls the viewport up or down to its maximum extent,
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-- pushing the selection when necessary.
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where clickeditem = (0,) <$> listElements l !? y
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-- Mouse scroll wheel: scroll up or down to the maximum extent, pushing the selection when necessary.
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MouseDown name btn _mods _loc | btn `elem` [BScrollUp, BScrollDown] -> do
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let scrollamt = if btn==BScrollUp then -1 else 1
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list' <- nestEventM' (_assList sst) $ listScrollPushingSelection name (asListSize (_assList sst)) scrollamt
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put' ui{aScreen=AS sst{_assList=list'}}
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-- if page down or end leads to a blank padding item, stop at last non-blank
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VtyEvent e@(EvKey k []) | k `elem` [KPageDown, KEnd] -> do
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l <- nestEventM' (_assList sst) $ handleListEvent e
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if isBlankElement $ listSelectedElement l
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l' <- nestEventM' l $ listScrollPushingSelection name (asListSize l) scrollamt
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put' ui{aScreen=AS sst{_assList=l'}}
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-- PGDOWN/END keys: handle with List's default handler, but restrict the selection to stop
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-- (and center) at the last non-blank item.
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VtyEvent e@(EvKey k []) | k `elem` [KPageDown, KEnd] -> do
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l1 <- nestEventM' l $ handleListEvent e
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if isBlankItem $ listSelectedElement l1
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then do
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let l' = listMoveTo lastnonblankidx l
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scrollSelectionToMiddle l'
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put' ui{aScreen=AS sst{_assList=l'}}
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let l2 = listMoveTo lastnonblankidx l1
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scrollSelectionToMiddle l2
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put' ui{aScreen=AS sst{_assList=l2}}
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else
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put' ui{aScreen=AS sst{_assList=l}}
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-- fall through to the list's event handler (handles up/down)
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put' ui{aScreen=AS sst{_assList=l1}}
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-- Any other vty event (PGUP, UP, DOWN, etc): handle with List's default handler.
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VtyEvent e -> do
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list' <- nestEventM' (_assList sst) $ handleListEvent (normaliseMovementKeys e)
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put' ui{aScreen=AS $ sst & assList .~ list' & assSelectedAccount .~ selacct }
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l' <- nestEventM' l $ handleListEvent (normaliseMovementKeys e)
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put' ui{aScreen=AS $ sst & assList .~ l' & assSelectedAccount .~ selacct}
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-- Any other mouse/app event: ignore
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MouseDown{} -> return ()
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MouseUp{} -> return ()
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AppEvent _ -> return ()
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_ -> dlogUiTraceM "asHandle 2" >> errorWrongScreenType "event handler"
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-- | Handle events when in minibuffer mode, on any screen.
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handleMinibufferMode ui@UIState{ajournal=j} ed ev = do
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d <- liftIO getCurrentDay
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case ev of
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VtyEvent (EvKey KEsc []) -> put' $ closeMinibuffer ui
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VtyEvent (EvKey KEnter []) -> put' $ regenerateScreens j d ui'
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where
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ui' = setFilter s (closeMinibuffer ui)
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& fromRight (showMinibuffer "Cannot compile regular expression" (Just s) ui)
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where s = chomp $ unlines $ map strip $ getEditContents ed
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VtyEvent (EvKey (KChar 'l') [MCtrl]) -> redraw
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VtyEvent (EvKey (KChar 'z') [MCtrl]) -> suspend ui
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VtyEvent e -> do
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ed' <- nestEventM' ed $ handleEditorEvent (VtyEvent e)
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put' ui{aMode=Minibuffer "filter" ed'}
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AppEvent _ -> return ()
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MouseDown{} -> return ()
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MouseUp{} -> return ()
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-- | Handle events when in help mode, on any screen.
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handleHelpMode ui ev =
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case ev of
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-- VtyEvent (EvKey (KChar 'q') []) -> halt
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VtyEvent (EvKey (KChar 'l') [MCtrl]) -> redraw
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VtyEvent (EvKey (KChar 'z') [MCtrl]) -> suspend ui
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_ -> helpHandle ev
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asEnterRegisterScreen :: Day -> AccountName -> UIState -> EventM Name UIState ()
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asEnterRegisterScreen d acct ui@UIState{ajournal=j, aopts=uopts} = do
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dlogUiTraceM "asEnterRegisterScreen"
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@ -343,16 +351,9 @@ asSetSelectedAccount :: AccountName -> Screen -> Screen
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asSetSelectedAccount a (AS ass@ASS{}) = AS ass{_assSelectedAccount=a}
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asSetSelectedAccount _ s = s
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isBlankElement mel = ((asItemAccountName . snd) <$> mel) == Just ""
|
||||
|
||||
-- | Scroll the accounts screen's selection to the center. No effect if on another screen.
|
||||
asCenterAndContinue :: EventM Name UIState ()
|
||||
asCenterAndContinue = do
|
||||
ui <- get'
|
||||
case aScreen ui of
|
||||
AS sst -> scrollSelectionToMiddle $ _assList sst
|
||||
_ -> return ()
|
||||
isBlankItem mitem = ((asItemAccountName . snd) <$> mitem) == Just ""
|
||||
|
||||
asListSize = V.length . V.takeWhile ((/="").asItemAccountName) . listElements
|
||||
|
||||
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user