75 lines
2.6 KiB
Haskell
75 lines
2.6 KiB
Haskell
{-# LANGUAGE OverloadedStrings #-}
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module GenerateHtml (generateHtml,
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modulesToHtml, linkedHtml,
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JSStyle (..)
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) where
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import Data.List (intercalate)
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import Text.Blaze (preEscapedToMarkup)
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import Text.Blaze.Html (Html)
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import qualified Text.Blaze.Html5 as H
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import Text.Blaze.Html5 ((!))
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import qualified Text.Blaze.Html5.Attributes as A
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import Text.Jasmine (minify)
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import qualified Data.ByteString.Lazy.Char8 as BS
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import Ast
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import Initialize (buildFromSource)
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import CompileToJS
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import ExtractNoscript
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import Libraries as Libraries
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data JSStyle = Minified | Readable
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makeScript :: JSStyle -> Either String String -> H.Html
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makeScript _ (Left s) =
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H.script ! A.type_ "text/javascript" ! A.src (H.toValue s) $ ""
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makeScript jsStyle (Right s) =
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H.script ! A.type_ "text/javascript" $ preEscapedToMarkup content
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where content = case jsStyle of
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Minified -> BS.unpack . minify . BS.pack $ s
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Readable -> s
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-- |This function compiles Elm code into simple HTML.
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--
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-- Usage example:
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--
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-- > generateHtml "/elm-min.js" "Some title" [elmFile|elm-source/somePage.elm|]
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generateHtml :: String -- ^ Location of elm-runtime.js as expected by the browser
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-> String -- ^ The page title
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-> String -- ^ The elm source code.
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-> Html
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generateHtml libLoc title source =
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case buildFromSource True source of
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Right modul -> modulesToHtml Readable title libLoc [] True [modul]
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Left err -> createHtml Readable libLoc title (Right $ showErr err)
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(H.noscript "") "Main"
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modulesToHtml jsStyle title libLoc jss nscrpt modules =
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createHtml jsStyle libLoc title' js noscript altTitle
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where
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js = Right $ jss ++ concatMap jsModule modules
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noscript = if nscrpt then extractNoscript $ last modules else ""
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title' = if null title then altTitle else title
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altTitle = intercalate "." names
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where Module names _ _ _ = last modules
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linkedHtml rtLoc jsLoc modules =
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createHtml Readable rtLoc title (Left jsLoc) (H.noscript "") title
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where
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title = (\(Module names _ _ _) -> intercalate "." names) (last modules)
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createHtml jsStyle libLoc title js noscript moduleToLoad =
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H.docTypeHtml $ do
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H.head $ do
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H.meta ! A.charset "UTF-8"
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H.title . H.toHtml $ title
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makeScript Readable (Left libLoc)
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makeScript jsStyle js
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H.body $ do
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H.script ! A.type_ "text/javascript" $ preEscapedToMarkup ("Elm.fullscreen(Elm." ++ moduleToLoad ++ ")" :: String)
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H.noscript $ preEscapedToMarkup noscript
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