ff0132df28
This gives us more accurate string length calculations. In particular, it handles emoji and other scripts properly.
376 lines
18 KiB
Haskell
376 lines
18 KiB
Haskell
-- The accounts screen, showing accounts and balances like the CLI balance command.
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{-# LANGUAGE OverloadedStrings #-}
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{-# LANGUAGE RecordWildCards #-}
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module Hledger.UI.AccountsScreen
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(accountsScreen
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,asInit
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,asSetSelectedAccount
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)
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where
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import Brick
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import Brick.Widgets.List
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(handleListEvent, list, listElementsL, listMoveDown, listMoveTo, listNameL, listSelectedElement, listSelectedL, renderList)
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import Brick.Widgets.Edit
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import Control.Monad
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import Control.Monad.IO.Class (liftIO)
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import Data.List
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import Data.Maybe
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import qualified Data.Text as T
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import Data.Time.Calendar (Day)
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import qualified Data.Vector as V
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import Graphics.Vty (Event(..),Key(..),Modifier(..))
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import Lens.Micro.Platform
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import Safe
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import System.Console.ANSI
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import System.FilePath (takeFileName)
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import Text.DocLayout (realLength)
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import Hledger
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import Hledger.Cli hiding (progname,prognameandversion)
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import Hledger.UI.UIOptions
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import Hledger.UI.UITypes
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import Hledger.UI.UIState
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import Hledger.UI.UIUtils
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import Hledger.UI.Editor
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import Hledger.UI.RegisterScreen
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import Hledger.UI.ErrorScreen
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accountsScreen :: Screen
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accountsScreen = AccountsScreen{
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sInit = asInit
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,sDraw = asDraw
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,sHandle = asHandle
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,_asList = list AccountsList V.empty 1
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,_asSelectedAccount = ""
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}
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asInit :: Day -> Bool -> UIState -> UIState
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asInit d reset ui@UIState{
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aopts=UIOpts{uoCliOpts=copts@CliOpts{reportspec_=rspec@ReportSpec{_rsReportOpts=ropts}}},
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ajournal=j,
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aScreen=s@AccountsScreen{}
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} =
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ui{aScreen=s & asList .~ newitems'}
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where
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newitems = list AccountsList (V.fromList $ displayitems ++ blankitems) 1
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-- decide which account is selected:
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-- if reset is true, the first account;
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-- otherwise, the previously selected account if possible;
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-- otherwise, the first account with the same prefix (eg first leaf account when entering flat mode);
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-- otherwise, the alphabetically preceding account.
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newitems' = listMoveTo selidx newitems
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where
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selidx = case (reset, listSelectedElement $ _asList s) of
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(True, _) -> 0
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(_, Nothing) -> 0
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(_, Just (_,AccountsScreenItem{asItemAccountName=a})) ->
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headDef 0 $ catMaybes [
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elemIndex a as
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,findIndex (a `isAccountNamePrefixOf`) as
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,Just $ max 0 (length (filter (< a) as) - 1)
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]
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where
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as = map asItemAccountName displayitems
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-- Further restrict the query based on the current period and future/forecast mode.
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rspec' = reportSpecSetFutureAndForecast d (forecast_ $ inputopts_ copts) rspec
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-- run the report
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(items,_total) = balanceReport rspec' j
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-- pre-render the list items
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displayitem (fullacct, shortacct, indent, bal) =
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AccountsScreenItem{asItemIndentLevel = indent
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,asItemAccountName = fullacct
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,asItemDisplayAccountName = replaceHiddenAccountsNameWith "All" $ if tree_ ropts then shortacct else fullacct
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,asItemMixedAmount = Just bal
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}
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displayitems = map displayitem items
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-- blanks added for scrolling control, cf RegisterScreen.
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-- XXX Ugly. Changing to 0 helps when debugging.
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blankitems = replicate 100
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AccountsScreenItem{asItemIndentLevel = 0
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,asItemAccountName = ""
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,asItemDisplayAccountName = ""
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,asItemMixedAmount = Nothing
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}
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asInit _ _ _ = error "init function called with wrong screen type, should not happen" -- PARTIAL:
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asDraw :: UIState -> [Widget Name]
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asDraw UIState{aopts=_uopts@UIOpts{uoCliOpts=copts@CliOpts{reportspec_=rspec}}
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,ajournal=j
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,aScreen=s@AccountsScreen{}
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,aMode=mode
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} =
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case mode of
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Help -> [helpDialog copts, maincontent]
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-- Minibuffer e -> [minibuffer e, maincontent]
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_ -> [maincontent]
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where
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maincontent = Widget Greedy Greedy $ do
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c <- getContext
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let
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availwidth =
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-- ltrace "availwidth" $
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c^.availWidthL
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- 2 -- XXX due to margin ? shouldn't be necessary (cf UIUtils)
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displayitems = s ^. asList . listElementsL
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acctwidths = V.map (\AccountsScreenItem{..} -> asItemIndentLevel + realLength asItemDisplayAccountName) displayitems
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balwidths = V.map (maybe 0 (wbWidth . showMixedAmountB oneLine) . asItemMixedAmount) displayitems
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preferredacctwidth = V.maximum acctwidths
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totalacctwidthseen = V.sum acctwidths
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preferredbalwidth = V.maximum balwidths
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totalbalwidthseen = V.sum balwidths
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totalwidthseen = totalacctwidthseen + totalbalwidthseen
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shortfall = preferredacctwidth + preferredbalwidth + 2 - availwidth
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acctwidthproportion = fromIntegral totalacctwidthseen / fromIntegral totalwidthseen
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adjustedacctwidth = min preferredacctwidth . max 15 . round $ acctwidthproportion * fromIntegral (availwidth - 2) -- leave 2 whitespace for padding
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adjustedbalwidth = availwidth - 2 - adjustedacctwidth
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-- XXX how to minimise the balance column's jumping around as you change the depth limit ?
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colwidths | shortfall <= 0 = (preferredacctwidth, preferredbalwidth)
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| otherwise = (adjustedacctwidth, adjustedbalwidth)
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render $ defaultLayout toplabel bottomlabel $ renderList (asDrawItem colwidths) True (_asList s)
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where
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ropts = _rsReportOpts rspec
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ishistorical = balanceaccum_ ropts == Historical
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toplabel =
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withAttr ("border" <> "filename") files
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<+> toggles
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<+> str (" account " ++ if ishistorical then "balances" else "changes")
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<+> borderPeriodStr (if ishistorical then "at end of" else "in") (period_ ropts)
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<+> borderQueryStr (T.unpack . T.unwords . map textQuoteIfNeeded $ querystring_ ropts)
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<+> borderDepthStr mdepth
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<+> str (" ("++curidx++"/"++totidx++")")
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<+> (if ignore_assertions_ . balancingopts_ $ inputopts_ copts
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then withAttr ("border" <> "query") (str " ignoring balance assertions")
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else str "")
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where
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files = case journalFilePaths j of
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[] -> str ""
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f:_ -> str $ takeFileName f
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-- [f,_:[]] -> (withAttr ("border" <> "bold") $ str $ takeFileName f) <+> str " (& 1 included file)"
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-- f:fs -> (withAttr ("border" <> "bold") $ str $ takeFileName f) <+> str (" (& " ++ show (length fs) ++ " included files)")
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toggles = withAttr ("border" <> "query") $ str $ unwords $ concat [
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[""]
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,if empty_ ropts then [] else ["nonzero"]
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,uiShowStatus copts $ statuses_ ropts
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,if real_ ropts then ["real"] else []
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]
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mdepth = depth_ ropts
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curidx = case _asList s ^. listSelectedL of
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Nothing -> "-"
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Just i -> show (i + 1)
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totidx = show $ V.length nonblanks
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where
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nonblanks = V.takeWhile (not . T.null . asItemAccountName) $ s ^. asList . listElementsL
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bottomlabel = case mode of
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Minibuffer ed -> minibuffer ed
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_ -> quickhelp
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where
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quickhelp = borderKeysStr' [
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("?", str "help")
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-- ,("RIGHT", str "register")
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,("t", renderToggle (tree_ ropts) "list" "tree")
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-- ,("t", str "tree")
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-- ,("l", str "list")
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,("-+", str "depth")
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,("H", renderToggle (not ishistorical) "end-bals" "changes")
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,("F", renderToggle1 (isJust . forecast_ $ inputopts_ copts) "forecast")
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--,("/", "filter")
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--,("DEL", "unfilter")
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--,("ESC", "cancel/top")
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,("a", str "add")
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-- ,("g", "reload")
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,("q", str "quit")
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]
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asDraw _ = error "draw function called with wrong screen type, should not happen" -- PARTIAL:
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asDrawItem :: (Int,Int) -> Bool -> AccountsScreenItem -> Widget Name
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asDrawItem (acctwidth, balwidth) selected AccountsScreenItem{..} =
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Widget Greedy Fixed $ do
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-- c <- getContext
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-- let showitem = intercalate "\n" . balanceReportItemAsText defreportopts fmt
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render $
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txt (fitText (Just acctwidth) (Just acctwidth) True True $ T.replicate (asItemIndentLevel) " " <> asItemDisplayAccountName) <+>
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txt balspace <+>
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splitAmounts balBuilder
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where
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balBuilder = maybe mempty showamt asItemMixedAmount
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showamt = showMixedAmountB oneLine{displayMinWidth=Just balwidth, displayMaxWidth=Just balwidth}
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balspace = T.replicate (2 + balwidth - wbWidth balBuilder) " "
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splitAmounts = foldr1 (<+>) . intersperse (str ", ") . map renderamt . T.splitOn ", " . wbToText
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renderamt :: T.Text -> Widget Name
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renderamt a | T.any (=='-') a = withAttr (sel $ "list" <> "balance" <> "negative") $ txt a
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| otherwise = withAttr (sel $ "list" <> "balance" <> "positive") $ txt a
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sel | selected = (<> "selected")
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| otherwise = id
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asHandle :: UIState -> BrickEvent Name AppEvent -> EventM Name (Next UIState)
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asHandle ui0@UIState{
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aScreen=scr@AccountsScreen{..}
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,aopts=UIOpts{uoCliOpts=copts}
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,ajournal=j
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,aMode=mode
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} ev = do
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let
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d = copts^.rsDay
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nonblanks = V.takeWhile (not . T.null . asItemAccountName) $ _asList^.listElementsL
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lastnonblankidx = max 0 (length nonblanks - 1)
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-- save the currently selected account, in case we leave this screen and lose the selection
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let
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selacct = case listSelectedElement _asList of
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Just (_, AccountsScreenItem{..}) -> asItemAccountName
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Nothing -> scr ^. asSelectedAccount
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ui = ui0{aScreen=scr & asSelectedAccount .~ selacct}
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case mode of
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Minibuffer ed ->
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case ev of
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VtyEvent (EvKey KEsc []) -> continue $ closeMinibuffer ui
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VtyEvent (EvKey KEnter []) -> continue $ regenerateScreens j d $ setFilter s $ closeMinibuffer ui
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where s = chomp $ unlines $ map strip $ getEditContents ed
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VtyEvent (EvKey (KChar 'l') [MCtrl]) -> redraw ui
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VtyEvent (EvKey (KChar 'z') [MCtrl]) -> suspend ui
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VtyEvent ev -> do ed' <- handleEditorEvent ev ed
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continue $ ui{aMode=Minibuffer ed'}
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AppEvent _ -> continue ui
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MouseDown{} -> continue ui
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MouseUp{} -> continue ui
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Help ->
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case ev of
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-- VtyEvent (EvKey (KChar 'q') []) -> halt ui
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VtyEvent (EvKey (KChar 'l') [MCtrl]) -> redraw ui
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VtyEvent (EvKey (KChar 'z') [MCtrl]) -> suspend ui
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_ -> helpHandle ui ev
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Normal ->
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case ev of
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VtyEvent (EvKey (KChar 'q') []) -> halt ui
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-- EvKey (KChar 'l') [MCtrl] -> do
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VtyEvent (EvKey KEsc []) -> continue $ resetScreens d ui
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VtyEvent (EvKey (KChar c) []) | c == '?' -> continue $ 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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AppEvent (DateChange old _) | isStandardPeriod p && p `periodContainsDate` old ->
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continue $ 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) >>= continue
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VtyEvent (EvKey (KChar 'I') []) -> continue $ uiCheckBalanceAssertions d (toggleIgnoreBalanceAssertions ui)
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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') []) -> continue $ regenerateScreens j d $ toggleCost ui
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VtyEvent (EvKey (KChar 'V') []) -> continue $ regenerateScreens j d $ toggleValue ui
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VtyEvent (EvKey (KChar '0') []) -> continue $ regenerateScreens j d $ setDepth (Just 0) ui
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VtyEvent (EvKey (KChar '1') []) -> continue $ regenerateScreens j d $ setDepth (Just 1) ui
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VtyEvent (EvKey (KChar '2') []) -> continue $ regenerateScreens j d $ setDepth (Just 2) ui
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VtyEvent (EvKey (KChar '3') []) -> continue $ regenerateScreens j d $ setDepth (Just 3) ui
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VtyEvent (EvKey (KChar '4') []) -> continue $ regenerateScreens j d $ setDepth (Just 4) ui
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VtyEvent (EvKey (KChar '5') []) -> continue $ regenerateScreens j d $ setDepth (Just 5) ui
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VtyEvent (EvKey (KChar '6') []) -> continue $ regenerateScreens j d $ setDepth (Just 6) ui
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VtyEvent (EvKey (KChar '7') []) -> continue $ regenerateScreens j d $ setDepth (Just 7) ui
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VtyEvent (EvKey (KChar '8') []) -> continue $ regenerateScreens j d $ setDepth (Just 8) ui
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VtyEvent (EvKey (KChar '9') []) -> continue $ regenerateScreens j d $ setDepth (Just 9) ui
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VtyEvent (EvKey (KChar '-') []) -> continue $ regenerateScreens j d $ decDepth ui
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VtyEvent (EvKey (KChar '_') []) -> continue $ regenerateScreens j d $ decDepth ui
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VtyEvent (EvKey (KChar c) []) | c `elem` ['+','='] -> continue $ regenerateScreens j d $ incDepth ui
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VtyEvent (EvKey (KChar 'T') []) -> continue $ regenerateScreens j d $ setReportPeriod (DayPeriod d) ui
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-- display mode/query toggles
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VtyEvent (EvKey (KChar 'H') []) -> asCenterAndContinue $ regenerateScreens j d $ toggleHistorical ui
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VtyEvent (EvKey (KChar 't') []) -> asCenterAndContinue $ regenerateScreens j d $ toggleTree ui
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VtyEvent (EvKey (KChar 'Z') []) -> asCenterAndContinue $ regenerateScreens j d $ toggleEmpty ui
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VtyEvent (EvKey (KChar 'R') []) -> asCenterAndContinue $ regenerateScreens j d $ toggleReal ui
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VtyEvent (EvKey (KChar 'U') []) -> asCenterAndContinue $ regenerateScreens j d $ toggleUnmarked ui
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VtyEvent (EvKey (KChar 'P') []) -> asCenterAndContinue $ regenerateScreens j d $ togglePending ui
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VtyEvent (EvKey (KChar 'C') []) -> asCenterAndContinue $ regenerateScreens j d $ toggleCleared ui
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VtyEvent (EvKey (KChar 'F') []) -> continue $ regenerateScreens j d $ toggleForecast d ui
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VtyEvent (EvKey (KDown) [MShift]) -> continue $ regenerateScreens j d $ shrinkReportPeriod d ui
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VtyEvent (EvKey (KUp) [MShift]) -> continue $ regenerateScreens j d $ growReportPeriod d ui
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VtyEvent (EvKey (KRight) [MShift]) -> continue $ regenerateScreens j d $ nextReportPeriod journalspan ui
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VtyEvent (EvKey (KLeft) [MShift]) -> continue $ regenerateScreens j d $ previousReportPeriod journalspan ui
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VtyEvent (EvKey (KChar '/') []) -> continue $ regenerateScreens j d $ showMinibuffer ui
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VtyEvent (EvKey k []) | k `elem` [KBS, KDel] -> (continue $ regenerateScreens j d $ resetFilter ui)
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VtyEvent e | e `elem` moveLeftEvents -> continue $ popScreen ui
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VtyEvent (EvKey (KChar 'l') [MCtrl]) -> scrollSelectionToMiddle _asList >> redraw ui
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VtyEvent (EvKey (KChar 'z') [MCtrl]) -> suspend ui
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-- enter 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 _asList->
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-- TODO center selection after entering register screen; neither of these works till second time entering; easy strictifications didn't help
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rsCenterAndContinue $
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-- flip rsHandle (VtyEvent (EvKey (KChar 'l') [MCtrl])) $
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screenEnter d regscr ui
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where
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regscr = rsSetAccount selacct isdepthclipped registerScreen
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isdepthclipped = case getDepth ui of
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Just d -> accountNameLevel selacct >= d
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Nothing -> False
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-- prevent moving down over blank padding items;
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-- instead scroll down by one, until maximally scrolled - shows the end has been reached
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VtyEvent (EvKey (KDown) []) | isBlankElement mnextelement -> do
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vScrollBy (viewportScroll $ _asList^.listNameL) 1
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continue ui
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where
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mnextelement = listSelectedElement $ listMoveDown _asList
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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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list <- handleListEvent e _asList
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if isBlankElement $ listSelectedElement list
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then do
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let list' = listMoveTo lastnonblankidx list
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scrollSelectionToMiddle list'
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continue ui{aScreen=scr{_asList=list'}}
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else
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continue ui{aScreen=scr{_asList=list}}
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-- fall through to the list's event handler (handles up/down)
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VtyEvent ev -> do
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newitems <- handleListEvent (normaliseMovementKeys ev) _asList
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continue $ ui{aScreen=scr & asList .~ newitems
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& asSelectedAccount .~ selacct
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}
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AppEvent _ -> continue ui
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MouseDown{} -> continue ui
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MouseUp{} -> continue ui
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where
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journalspan = journalDateSpan False j
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asHandle _ _ = error "event handler called with wrong screen type, should not happen" -- PARTIAL:
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asSetSelectedAccount a s@AccountsScreen{} = s & asSelectedAccount .~ a
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asSetSelectedAccount _ s = s
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isBlankElement mel = ((asItemAccountName . snd) <$> mel) == Just ""
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asCenterAndContinue ui = do
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scrollSelectionToMiddle $ _asList $ aScreen ui
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continue ui
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