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ui: fix manual viewing (on posix) (fix #623)

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Simon Michael 2017-12-30 12:59:25 -08:00
parent a4df7997b4
commit 448934d146
1 changed files with 12 additions and 12 deletions
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24
hledger-ui/Hledger/UI/UIUtils.hs
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@ -13,23 +13,21 @@ import Brick.Widgets.Border.Style
import Brick.Widgets.Dialog
import Brick.Widgets.Edit
import Brick.Widgets.List
import Control.Monad.IO.Class
import Data.List
import Data.Maybe
import Data.Monoid
import Graphics.Vty (Event(..),Key(..),Modifier(..),Color,Attr,currentAttr)
import Lens.Micro.Platform
import System.Process
import System.Environment
import Hledger hiding (Color)
import Hledger.Cli (CliOpts(rawopts_))
import Hledger.Cli.DocFiles
import Hledger.UI.UITypes
import Hledger.UI.UIState
runInfo = runCommand "hledger-ui --info" >>= waitForProcess
runMan = runCommand "hledger-ui --man" >>= waitForProcess
runHelp = runCommand "hledger-ui --help | less" >>= waitForProcess
-- ui
-- | Draw the help dialog, called when help mode is active.
@ -63,9 +61,9 @@ helpDialog copts =
,renderKey ("q", "quit")
,str " "
,str "MANUAL"
,str "from help dialog:"
,renderKey ("t", "text")
,renderKey ("m", "man page")
,str "choose format:"
,renderKey ("p", "pager")
,renderKey ("m", "man")
,renderKey ("i", "info")
]
,padLeftRight 1 $
@ -124,13 +122,15 @@ helpDialog copts =
statusstyle = min 3 $ fromMaybe 1 $ maybeintopt "status-toggles" $ rawopts_ copts
-- | Event handler used when help mode is active.
-- May invoke $PAGER, less, man or info, which is likely to fail on MS Windows, TODO.
helpHandle :: UIState -> BrickEvent Name AppEvent -> EventM Name (Next UIState)
helpHandle ui ev =
helpHandle ui ev = do
pagerprog <- liftIO $ fromMaybe "less" <$> lookupEnv "PAGER"
case ev of
VtyEvent e | e `elem` (moveLeftEvents ++ [EvKey KEsc [], EvKey (KChar '?') []]) -> continue $ setMode Normal ui
VtyEvent (EvKey (KChar 't') []) -> suspendAndResume $ runHelp >> return ui'
VtyEvent (EvKey (KChar 'm') []) -> suspendAndResume $ runMan >> return ui'
VtyEvent (EvKey (KChar 'i') []) -> suspendAndResume $ runInfo >> return ui'
VtyEvent (EvKey (KChar 'p') []) -> suspendAndResume $ runPagerForTopic pagerprog "hledger-ui" >> return ui'
VtyEvent (EvKey (KChar 'm') []) -> suspendAndResume $ runManForTopic "hledger-ui" >> return ui'
VtyEvent (EvKey (KChar 'i') []) -> suspendAndResume $ runInfoForTopic "hledger-ui" >> return ui'
_ -> continue ui
where
ui' = setMode Normal ui