module Yesod.Form.Nic
( YesodNic (..)
, nicHtmlField
) where
import Yesod.Handler
import Yesod.Core (Route, ScriptLoadPosition(..), jsLoader, Yesod)
import Yesod.Form
import Yesod.Widget
import Text.HTML.SanitizeXSS (sanitizeBalance)
import Text.Hamlet (Html, shamlet)
import Text.Julius (julius)
import Text.Blaze.Renderer.String (renderHtml)
import Text.Blaze (preEscapedText)
import Data.Text (Text, pack)
import Data.Maybe (listToMaybe)
class Yesod a => YesodNic a where
urlNicEdit :: a -> Either (Route a) Text
urlNicEdit _ = Right "http://js.nicedit.com/nicEdit-latest.js"
nicHtmlField :: YesodNic master => Field sub master Html
nicHtmlField = Field
{ fieldParse = return . Right . fmap (preEscapedText . sanitizeBalance) . listToMaybe
, fieldView = \theId name attrs val _isReq -> do
toWidget [shamlet|
<textarea id="#{theId}" *{attrs} name="#{name}" .html>#{showVal val}
|]
addScript' urlNicEdit
master <- lift getYesod
toWidget $
case jsLoader master of
BottomOfHeadBlocking -> [julius|
bkLib.onDomLoaded(function(){new nicEditor({fullPanel:true}).panelInstance("#{theId}")});
|]
_ -> [julius|
(function(){new nicEditor({fullPanel:true}).panelInstance("#{theId}")})();
|]
}
where
showVal = either id (pack . renderHtml)
addScript' :: (y -> Either (Route y) Text) -> GWidget sub y ()
addScript' f = do
y <- lift getYesod
addScriptEither $ f y