mirror of
https://github.com/simonmichael/hledger.git
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350 lines
18 KiB
Haskell
350 lines
18 KiB
Haskell
-- The menu screen, showing other screens available in hledger-ui.
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{-# LANGUAGE OverloadedStrings #-}
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{-# LANGUAGE RecordWildCards #-}
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module Hledger.UI.MenuScreen
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(msNew
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,msUpdate
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,msDraw
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,msHandle
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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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-- 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 hiding (reverse)
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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 Data.Vector ((!?))
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import Graphics.Vty (Event(..),Key(..),Modifier(..), Button (BLeft, BScrollDown, BScrollUp))
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import Lens.Micro.Platform
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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 (mode, 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.UIScreens
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import Hledger.UI.ErrorScreen (uiReloadJournal, uiCheckBalanceAssertions, uiReloadJournalIfChanged)
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import Hledger.UI.Editor (runIadd, runEditor, endPosition)
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import Brick.Widgets.Edit (getEditContents, handleEditorEvent)
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-- import Hledger.UI.AccountsScreen
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msDraw :: UIState -> [Widget Name]
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msDraw UIState{aopts=_uopts@UIOpts{uoCliOpts=copts@CliOpts{reportspec_=_rspec}}
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,ajournal=j
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,aScreen=MS sst
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,aMode=mode
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} = dlogUiTrace "msDraw 1" $
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case mode of
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Help -> [helpDialog copts, maincontent]
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Minibuffer lbl ed -> [minibuffer lbl ed, 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 = sst ^. mssList . listElementsL
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-- acctwidths = V.map (\AccountsScreenItem{..} -> msItemIndentLevel + realLength msItemDisplayAccountName) displayitems
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-- balwidths = V.map (maybe 0 (wbWidth . showMixedAmountB oneLine) . msItemMixedAmount) 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 msDrawItem True (sst ^. mssList)
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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 (attrName "border" <> attrName "filename") files
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-- <+> toggles
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-- <+> str " menu"
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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 (attrName "border" <> attrName "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 (attrName "border" <> attrName "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 sst ^. mssList . 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 . msItemScreenName) $ sst ^. mssList . listElementsL
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bottomlabel = case mode of
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Minibuffer label ed -> minibuffer label 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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msDraw _ = dlogUiTrace "msDraw 2" $ errorWrongScreenType "draw function" -- PARTIAL:
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-- msDrawItem :: (Int,Int) -> Bool -> MenuScreenItem -> Widget Name
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-- msDrawItem (_acctwidth, _balwidth) _selected MenuScreenItem{..} =
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msDrawItem :: Bool -> MenuScreenItem -> Widget Name
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msDrawItem _selected MenuScreenItem{..} =
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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 msItemScreenName
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-- txt (fitText (Just acctwidth) (Just acctwidth) True True $ T.replicate (msItemIndentLevel) " " <> msItemDisplayAccountName) <+>
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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 msItemMixedAmount
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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 $ attrName "list" <> attrName "balance" <> attrName "negative") $ txt a
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-- | otherwise = withAttr (sel $ attrName "list" <> attrName "balance" <> attrName "positive") $ txt a
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-- sel | selected = (<> attrName "selected")
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-- | otherwise = id
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msHandle :: BrickEvent Name AppEvent -> EventM Name UIState ()
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msHandle ev = do
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ui0 <- get'
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dlogUiTraceM "msHandle 1"
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case ui0 of
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ui@UIState{
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aopts=UIOpts{uoCliOpts=copts}
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,ajournal=j
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,aMode=mode
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,aScreen=MS sst
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} -> do
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let
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-- save the currently selected account, in case we leave this screen and lose the selection
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mselscr = case listSelectedElement $ _mssList sst of
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Just (_, MenuScreenItem{..}) -> Just msItemScreen
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Nothing -> Nothing
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-- ui = ui1{aScreen=MS sst{_assSelectedAccount=selacct}}
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nonblanks = V.takeWhile (not . T.null . msItemScreenName) $ listElements $ _mssList sst
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lastnonblankidx = max 0 (length nonblanks - 1)
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-- journalspan = journalDateSpan False j
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d = copts^.rsDay
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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 []) -> 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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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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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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-- -- display mode/query toggles
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-- VtyEvent (EvKey (KChar 'H') []) -> modify' (regenerateScreens j d . toggleHistorical) >> msCenterAndContinue
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-- VtyEvent (EvKey (KChar 't') []) -> modify' (regenerateScreens j d . toggleTree) >> msCenterAndContinue
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-- VtyEvent (EvKey (KChar c) []) | c `elem` ['z','Z'] -> modify' (regenerateScreens j d . toggleEmpty) >> msCenterAndContinue
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-- VtyEvent (EvKey (KChar 'R') []) -> modify' (regenerateScreens j d . toggleReal) >> msCenterAndContinue
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-- VtyEvent (EvKey (KChar 'U') []) -> modify' (regenerateScreens j d . toggleUnmarked) >> msCenterAndContinue
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-- VtyEvent (EvKey (KChar 'P') []) -> modify' (regenerateScreens j d . togglePending) >> msCenterAndContinue
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-- VtyEvent (EvKey (KChar 'C') []) -> modify' (regenerateScreens j d . toggleCleared) >> msCenterAndContinue
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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 (EvKey (KChar 'l') [MCtrl]) -> scrollSelectionToMiddle (_mssList sst) >> redraw
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VtyEvent (EvKey (KChar 'z') [MCtrl]) -> suspend ui
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-- RIGHT enters selected screen if there is one
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VtyEvent e | e `elem` moveRightEvents
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, not $ isBlankElement $ listSelectedElement (_mssList sst) -> msEnterScreen d (fromMaybe Accounts mselscr) 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 $ (=="") clickedname -> do
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put' ui{aScreen=MS sst} -- XXX does this do anything ?
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where
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item = listElements (_mssList sst) !? y
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clickedname = maybe "" msItemScreenName item
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-- mclickedscr = msItemScreen <$> item
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-- and on MouseUp, enter the subscreen
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MouseUp _n (Just BLeft) Location{loc=(_x,y)} -> -- | not $ (=="") clickedname ->
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case mclickedscr of
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Just scr -> msEnterScreen d scr ui
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Nothing -> return ()
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where
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item = listElements (_mssList sst) !? y
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-- clickedname = maybe "" msItemScreenName item
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mclickedscr = msItemScreen <$> item
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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 $ (_mssList sst)^.listNameL) 1
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where mnextelement = listSelectedElement $ listMoveDown (_mssList 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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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' (_mssList sst) $ listScrollPushingSelection name (msListSize (_mssList sst)) scrollamt
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put' ui{aScreen=MS sst{_mssList=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' (_mssList sst) $ handleListEvent e
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if isBlankElement $ listSelectedElement l
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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=MS sst{_mssList=l'}}
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else
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put' ui{aScreen=MS sst{_mssList=l}}
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-- fall through to the list's event handler (handles up/down)
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VtyEvent e -> do
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list' <- nestEventM' (_mssList sst) $ handleListEvent (normaliseMovementKeys e)
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put' ui{aScreen=MS $ sst & mssList .~ list'}
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MouseDown{} -> return ()
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MouseUp{} -> return ()
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AppEvent _ -> return ()
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_ -> dlogUiTraceM "msHandle 2" >> errorWrongScreenType "event handler"
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msEnterScreen :: Day -> ScreenName -> UIState -> EventM Name UIState ()
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msEnterScreen d scrname ui@UIState{ajournal=j, aopts=uopts} = do
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dlogUiTraceM "msEnterScreen"
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let
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scr = case scrname of
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Accounts -> asNew uopts d j Nothing
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Balancesheet -> bsNew uopts d j Nothing
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put' $ pushScreen scr ui
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-- -- | Set the selected account on an accounts screen. No effect on other screens.
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-- msSetSelectedAccount :: AccountName -> Screen -> Screen
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-- msSetSelectedAccount a (MS mss@ASS{}) = MS mss{_assSelectedAccount=a}
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-- msSetSelectedAccount _ s = s
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isBlankElement mel = ((msItemScreenName . snd) <$> mel) == Just ""
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-- -- | Scroll the accounts screen's selection to the center. No effect if on another screen.
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-- msCenterAndContinue :: EventM Name UIState ()
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-- msCenterAndContinue = do
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-- ui <- get'
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-- case aScreen ui of
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-- MS sst -> scrollSelectionToMiddle $ _assList sst
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-- _ -> return ()
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msListSize = V.length . V.takeWhile ((/="").msItemScreenName) . listElements
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