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fradrive-old/src/Handler/Utils/Widgets.hs
Gregor Kleen cfaea9c08b chore: bump to lts-15.0
BREAKING CHANGE: major version bumps
2020-02-23 11:12:45 +01:00

119 lines
4.3 KiB
Haskell

module Handler.Utils.Widgets where
import Import
import qualified Data.Text as T
import qualified Data.CaseInsensitive as CI
import Text.Hamlet (shamletFile)
import Handler.Utils.DateTime
import qualified Data.Char as Char
---------
-- Simple utilities for consistent display
-- Please use these throughout, to ensure that users have a consistent experience
tidFromText :: Text -> Maybe TermId
tidFromText = fmap TermKey . maybeRight . termFromText
-- | Display given UTCTime and maybe an invisible icon if it is in the future
--
-- Also see `Handler.Utils.Table.Cells.dateTimeCellVisible` for a similar function (in case of refactoring)
visibleUTCTime :: SelDateTimeFormat -> UTCTime -> Widget
visibleUTCTime dtf t = do
let timeStampWgt = formatTimeW dtf t
now <- liftIO getCurrentTime
if now >= t
then timeStampWgt
else $(widgetFile "widgets/date-time/yet-invisible")
-- | Simple link to a known route
simpleLink :: Widget -> Route UniWorX -> Widget
simpleLink lbl url = [whamlet|<a href=@{url}>^{lbl}|]
simpleLinkI :: SomeMessage UniWorX -> Route UniWorX -> Widget
simpleLinkI lbl url = [whamlet|<a href=@{url}>_{lbl}|]
-- | toWidget-Version of @nameHtml@, for convenience
nameWidget :: Text -- ^ userDisplayName
-> Text -- ^ userSurname
-> Widget
nameWidget displayName surname = toWidget $ nameHtml displayName surname
-- | toWidget-Version of @nameEmailHtml@, for convenience
nameEmailWidget :: UserEmail -- ^ userEmail
-> Text -- ^ userDisplayName
-> Text -- ^ userSurname
-> Widget
nameEmailWidget email displayName surname = toWidget $ nameEmailHtml email displayName surname
-- | uncurried Version for @nameEmailWidget@ needed in hamlet, where TH cannot be used
nameEmailWidget' :: (UserEmail, Text, Text)-> Widget
nameEmailWidget' = $(uncurryN 3) nameEmailWidget
-- | Show user's displayName, highlighting the surname if possible.
-- Otherwise appends the surname in parenthesis
nameHtml :: Text -> Text -> Html
nameHtml displayName surname
| null surname = toHtml displayName
| otherwise = case reverse $ T.splitOn surname displayName of
[_notContained] -> [shamlet|$newline never
#{displayName} (
<b .surname>#{surname}
)|]
(suffix:prefixes) ->
let prefix = T.intercalate surname $ reverse prefixes
in [shamlet|$newline never
#{prefix}
<b .surname>#{surname}
#{suffix}
|]
[] -> error "Data.Text.splitOn returned empty list in violation of specification."
-- | Like nameHtml just show a users displayname with hightlighted surname,
-- but also wrap the name with a mailto-link
nameEmailHtml :: UserEmail -> Text -> Text -> Html
nameEmailHtml email displayName surname =
wrapMailto email $ nameHtml displayName surname
-- | Wrap mailto around given Html using single hamlet-file for consistency
wrapMailto :: UserEmail -> Html -> Html
wrapMailto (CI.original -> email) linkText
| null email = linkText
| otherwise = $(shamletFile "templates/widgets/link-email.hamlet")
-- | Just show an email address in a standard way, for convenience inside hamlet files.
mailtoHtml :: UserEmail -> Html
mailtoHtml email = wrapMailto email $(shamletFile "templates/widgets/email.hamlet")
-- | Generic i18n text for "edited at sometime by someone"
editedByW :: SelDateTimeFormat -> UTCTime -> Text -> Widget
editedByW fmt tm usr = do
ft <- handlerToWidget $ formatTime fmt tm
[whamlet|_{MsgEditedBy usr ft}|]
heat :: Integral a => a -> a -> Double
heat (toInteger -> full) (toInteger -> achieved)
= roundToDigits 3 $ cutOffPercent 0.3 (fromIntegral full^2) (fromIntegral achieved^2)
i18n :: forall m msg.
( MonadWidget m
, RenderMessage (HandlerSite m) msg
) => msg -> m ()
i18n = toWidget . (SomeMessage :: msg -> SomeMessage (HandlerSite m))
examOccurrenceMappingDescriptionWidget :: ExamOccurrenceRule -> Set ExamOccurrenceMappingDescription -> Widget
examOccurrenceMappingDescriptionWidget rule descriptions = $(widgetFile "widgets/exam-occurrence-mapping-description")
where
titleCase :: [CI Char] -> String
titleCase = over _head Char.toUpper . map CI.foldedCase
doPrefix
| ExamRoomMatriculation <- rule
= False
| otherwise
= True