61 lines
2.0 KiB
Haskell
61 lines
2.0 KiB
Haskell
{-# LANGUAGE QuasiQuotes #-}
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{-# LANGUAGE TypeFamilies #-}
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{-# LANGUAGE FlexibleContexts #-}
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{-# LANGUAGE OverloadedStrings #-}
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{-# LANGUAGE CPP #-}
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-- | Provide the user with a rich text editor.
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--
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-- According to NIC editor homepage it is not actively maintained since June
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-- 2012. There is another better alternative — open sourced Summernote editor
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-- released under MIT licence. You can use Summernote in your Yesod forms via
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-- separately distributed
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-- <http://hackage.haskell.org/package/yesod-form-richtext yesod-form-richtext>
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-- package.
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module Yesod.Form.Nic
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( YesodNic (..)
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, nicHtmlField
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) where
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import Yesod.Core
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import Yesod.Form
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import Text.HTML.SanitizeXSS (sanitizeBalance)
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import Text.Julius (rawJS)
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import Text.Blaze.Html.Renderer.String (renderHtml)
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import Data.Text (Text, pack)
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import Data.Maybe (listToMaybe)
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class Yesod a => YesodNic a where
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-- | NIC Editor Javascript file.
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urlNicEdit :: a -> Either (Route a) Text
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urlNicEdit _ = Right "http://js.nicedit.com/nicEdit-latest.js"
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nicHtmlField :: YesodNic site => Field (HandlerFor site) Html
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nicHtmlField = Field
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{ fieldParse = \e _ -> return . Right . fmap (preEscapedToMarkup . sanitizeBalance) . listToMaybe $ e
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, fieldView = \theId name attrs val _isReq -> do
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toWidget [shamlet|
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$newline never
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<textarea id="#{theId}" *{attrs} name="#{name}" .html>#{showVal val}
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|]
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addScript' urlNicEdit
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master <- getYesod
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toWidget $
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case jsLoader master of
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BottomOfHeadBlocking -> [julius|
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bkLib.onDomLoaded(function(){new nicEditor({fullPanel:true}).panelInstance("#{rawJS theId}")});
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|]
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_ -> [julius|
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(function(){new nicEditor({fullPanel:true}).panelInstance("#{rawJS theId}")})();
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|]
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, fieldEnctype = UrlEncoded
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}
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where
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showVal = either id (pack . renderHtml)
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addScript' :: (MonadWidget m, HandlerSite m ~ site)
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=> (site -> Either (Route site) Text)
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-> m ()
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addScript' f = do
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y <- getYesod
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addScriptEither $ f y
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