    {-
    Copyright (C) 2006-2010 John MacFarlane <jgm@berkeley.edu>

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
    -}

    {- |
       Module      : Text.Pandoc.S5
       Copyright   : Copyright (C) 2006-2010 John MacFarlane
       License     : GNU GPL, version 2 or above

       Maintainer  : John MacFarlane <jgm@berkeley.edu>
       Stability   : alpha
       Portability : portable

    Definitions for creation of S5 powerpoint-like HTML.
    (See <http://meyerweb.com/eric/tools/s5/>.)
    -}
    module Text.Pandoc.S5 ( s5HeaderIncludes) where
    import Text.Pandoc.Shared ( readDataFile )
    import System.FilePath ( (</>) )

    s5HeaderIncludes :: Maybe FilePath -> IO String
    s5HeaderIncludes datadir = do
      c <- s5CSS datadir
      j <- s5Javascript datadir
      return $ c ++ j

    s5Javascript :: Maybe FilePath -> IO String
    s5Javascript datadir = do
      jsCom <- readDataFile datadir $ "s5" </> "default" </> "slides.js.comment"
      jsPacked <- readDataFile datadir $ "s5" </> "default" </> "slides.js.packed"
      return $ "<script type=\"text/javascript\">\n" ++ jsCom ++ jsPacked ++
               "</script>\n"

    s5CSS :: Maybe FilePath -> IO String
    s5CSS datadir = do
      s5CoreCSS <- readDataFile datadir $ "s5" </> "default" </> "s5-core.css"
      s5FramingCSS <- readDataFile datadir $ "s5" </> "default" </> "framing.css"
      s5PrettyCSS <- readDataFile datadir $ "s5" </> "default" </> "pretty.css"
      s5OperaCSS <- readDataFile datadir $ "s5" </> "default" </> "opera.css"
      s5OutlineCSS <- readDataFile datadir $ "s5" </> "default" </> "outline.css"
      s5PrintCSS <- readDataFile datadir $ "s5" </> "default" </> "print.css"
      return $ "<style type=\"text/css\" media=\"projection\" id=\"slideProj\">\n" ++ s5CoreCSS ++ "\n" ++ s5FramingCSS ++ "\n" ++ s5PrettyCSS ++ "\n</style>\n<style type=\"text/css\" media=\"projection\" id=\"operaFix\">\n" ++ s5OperaCSS ++ "\n</style>\n<style type=\"text/css\" media=\"screen\" id=\"outlineStyle\">\n" ++ s5OutlineCSS ++ "\n</style>\n<style type=\"text/css\" media=\"print\" id=\"slidePrint\">\n" ++ s5PrintCSS ++ "\n</style>\n"