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{-# LANGUAGE CPP, TemplateHaskell #-}
{-
Copyright (C) 2006-7 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.Writers.S5
Copyright : Copyright (C) 2006-7 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.Writers.S5 (
-- * Strings
s5Meta,
s5Javascript,
s5CSS,
s5Links,
-- * Functions
writeS5,
writeS5String,
insertS5Structure
) where
import Text.Pandoc.Shared ( WriterOptions )
import Text.Pandoc.TH ( contentsOf )
import Text.Pandoc.Writers.HTML ( writeHtml, writeHtmlString )
import Text.Pandoc.Definition
import Text.XHtml.Strict
import System.FilePath ( (</>) )
import Data.List ( intercalate )
s5Meta :: String
s5Meta = "<!-- configuration parameters -->\n<meta name=\"defaultView\" content=\"slideshow\" />\n<meta name=\"controlVis\" content=\"hidden\" />\n"
s5Javascript :: String
#ifndef __HADDOCK__
s5Javascript = "<script type=\"text/javascript\">\n" ++
$(contentsOf $ "data" </> "ui" </> "default" </> "slides.js.comment") ++
$(contentsOf $ "data" </> "ui" </> "default" </> "slides.js.packed") ++ "</script>\n"
#endif
s5CoreCSS :: String
#ifndef __HADDOCK__
s5CoreCSS = $(contentsOf $ "data" </> "ui" </> "default" </> "s5-core.css")
#endif
s5FramingCSS :: String
#ifndef __HADDOCK__
s5FramingCSS = $(contentsOf $ "data" </> "ui" </> "default" </> "framing.css")
#endif
s5PrettyCSS :: String
#ifndef __HADDOCK__
s5PrettyCSS = $(contentsOf $ "data" </> "ui" </> "default" </> "pretty.css")
#endif
s5OperaCSS :: String
#ifndef __HADDOCK__
s5OperaCSS = $(contentsOf $ "data" </> "ui" </> "default" </> "opera.css")
#endif
s5OutlineCSS :: String
#ifndef __HADDOCK__
s5OutlineCSS = $(contentsOf $ "data" </> "ui" </> "default" </> "outline.css")
#endif
s5PrintCSS :: String
#ifndef __HADDOCK__
s5PrintCSS = $(contentsOf $ "data" </> "ui" </> "default" </> "print.css")
#endif
s5CSS :: String
s5CSS = "<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"
s5Links :: String
s5Links = "<!-- style sheet links -->\n<link rel=\"stylesheet\" href=\"ui/default/slides.css\" type=\"text/css\" media=\"projection\" id=\"slideProj\" />\n<link rel=\"stylesheet\" href=\"ui/default/outline.css\" type=\"text/css\" media=\"screen\" id=\"outlineStyle\" />\n<link rel=\"stylesheet\" href=\"ui/default/print.css\" type=\"text/css\" media=\"print\" id=\"slidePrint\" />\n<link rel=\"stylesheet\" href=\"ui/default/opera.css\" type=\"text/css\" media=\"projection\" id=\"operaFix\" />\n<!-- S5 JS -->\n<script src=\"ui/default/slides.js\" type=\"text/javascript\"></script>\n"
-- | Converts Pandoc document to an S5 HTML presentation (Html structure).
writeS5 :: WriterOptions -> Pandoc -> Html
writeS5 options = (writeHtml options) . insertS5Structure
-- | Converts Pandoc document to an S5 HTML presentation (string).
writeS5String :: WriterOptions -> Pandoc -> String
writeS5String options = (writeHtmlString options) . insertS5Structure
-- | Inserts HTML needed for an S5 presentation (e.g. around slides).
layoutDiv :: [Inline] -- ^ Title of document (for header or footer)
-> String -- ^ Date of document (for header or footer)
-> [Block] -- ^ List of block elements returned
layoutDiv title' date = [(RawHtml "<div class=\"layout\">\n<div id=\"controls\"></div>\n<div id=\"currentSlide\"></div>\n<div id=\"header\"></div>\n<div id=\"footer\">\n"), (Header 1 [Str date]), (Header 2 title'), (RawHtml "</div>\n</div>\n")]
presentationStart :: Block
presentationStart = RawHtml "<div class=\"presentation\">\n\n"
presentationEnd :: Block
presentationEnd = RawHtml "</div>\n"
slideStart :: Block
slideStart = RawHtml "<div class=\"slide\">\n"
slideEnd :: Block
slideEnd = RawHtml "</div>\n"
-- | Returns 'True' if block is a Header 1.
isH1 :: Block -> Bool
isH1 (Header 1 _) = True
isH1 _ = False
-- | Insert HTML around sections to make individual slides.
insertSlides :: Bool -> [Block] -> [Block]
insertSlides beginning blocks =
let (beforeHead, rest) = break isH1 blocks in
if (null rest) then
if beginning then
beforeHead
else
beforeHead ++ [slideEnd]
else
if beginning then
beforeHead ++
slideStart:(head rest):(insertSlides False (tail rest))
else
beforeHead ++
slideEnd:slideStart:(head rest):(insertSlides False (tail rest))
-- | Insert blocks into 'Pandoc' for slide structure.
insertS5Structure :: Pandoc -> Pandoc
insertS5Structure (Pandoc meta' []) = Pandoc meta' []
insertS5Structure (Pandoc (Meta title' authors date) blocks) =
let slides = insertSlides True blocks
firstSlide = if not (null title')
then [slideStart, (Header 1 title'),
(Header 3 [Str (intercalate ", " authors)]),
(Header 4 [Str date]), slideEnd]
else []
newBlocks = (layoutDiv title' date) ++ presentationStart:firstSlide ++
slides ++ [presentationEnd]
in Pandoc (Meta title' authors date) newBlocks
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