{-# LANGUAGE ScopedTypeVariables #-} {- Copyright (C) 2008-2015 John MacFarlane 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.ODT Copyright : Copyright (C) 2008-2015 John MacFarlane License : GNU GPL, version 2 or above Maintainer : John MacFarlane Stability : alpha Portability : portable Conversion of 'Pandoc' documents to ODT. -} module Text.Pandoc.Writers.ODT ( writeODT ) where import Data.List ( isPrefixOf ) import Data.Maybe ( fromMaybe ) import Text.XML.Light.Output import Text.TeXMath import qualified Data.ByteString.Lazy as B import Text.Pandoc.UTF8 ( fromStringLazy ) import Codec.Archive.Zip import Text.Pandoc.Options ( WriterOptions(..), WrapOption(..) ) import Text.Pandoc.Shared ( stringify ) import Text.Pandoc.ImageSize import Text.Pandoc.MIME ( getMimeType, extensionFromMimeType ) import Text.Pandoc.Definition import Text.Pandoc.Walk import Text.Pandoc.Writers.Shared ( fixDisplayMath ) import Text.Pandoc.Writers.OpenDocument ( writeOpenDocument ) import Control.Monad.State import Control.Monad.Except (runExceptT) import Text.Pandoc.Error (PandocError) import Text.Pandoc.XML import Text.Pandoc.Pretty import System.FilePath ( takeExtension, takeDirectory, (<.>)) import Text.Pandoc.Class ( PandocMonad ) import qualified Text.Pandoc.Class as P data ODTState = ODTState { stEntries :: [Entry] } type O m = StateT ODTState m -- | Produce an ODT file from a Pandoc document. writeODT :: PandocMonad m => WriterOptions -- ^ Writer options -> Pandoc -- ^ Document to convert -> m B.ByteString writeODT opts doc = let initState = ODTState{ stEntries = [] } in evalStateT (pandocToODT opts doc) initState -- | Produce an ODT file from a Pandoc document. pandocToODT :: PandocMonad m => WriterOptions -- ^ Writer options -> Pandoc -- ^ Document to convert -> O m B.ByteString pandocToODT opts doc@(Pandoc meta _) = do let datadir = writerUserDataDir opts let title = docTitle meta refArchive <- case writerReferenceDoc opts of Just f -> liftM toArchive $ lift $ P.readFileLazy f Nothing -> lift $ (toArchive . B.fromStrict) <$> P.readDataFile datadir "reference.odt" -- handle formulas and pictures -- picEntriesRef <- P.newIORef ([] :: [Entry]) doc' <- walkM (transformPicMath opts) $ walk fixDisplayMath doc newContents <- lift $ writeOpenDocument opts{writerWrapText = WrapNone} doc' epochtime <- floor `fmap` (lift P.getPOSIXTime) let contentEntry = toEntry "content.xml" epochtime $ fromStringLazy newContents picEntries <- gets stEntries let archive = foldr addEntryToArchive refArchive $ contentEntry : picEntries -- construct META-INF/manifest.xml based on archive let toFileEntry fp = case getMimeType fp of Nothing -> empty Just m -> selfClosingTag "manifest:file-entry" [("manifest:media-type", m) ,("manifest:full-path", fp) ,("manifest:version", "1.2") ] let files = [ ent | ent <- filesInArchive archive, not ("META-INF" `isPrefixOf` ent) ] let formulas = [ takeDirectory ent ++ "/" | ent <- filesInArchive archive, "Formula-" `isPrefixOf` ent, takeExtension ent == ".xml" ] let manifestEntry = toEntry "META-INF/manifest.xml" epochtime $ fromStringLazy $ render Nothing $ text "" $$ ( inTags True "manifest:manifest" [("xmlns:manifest","urn:oasis:names:tc:opendocument:xmlns:manifest:1.0") ,("manifest:version","1.2")] $ ( selfClosingTag "manifest:file-entry" [("manifest:media-type","application/vnd.oasis.opendocument.text") ,("manifest:full-path","/")] $$ vcat ( map toFileEntry $ files ) $$ vcat ( map toFileEntry $ formulas ) ) ) let archive' = addEntryToArchive manifestEntry archive let metaEntry = toEntry "meta.xml" epochtime $ fromStringLazy $ render Nothing $ text "" $$ ( inTags True "office:document-meta" [("xmlns:office","urn:oasis:names:tc:opendocument:xmlns:office:1.0") ,("xmlns:xlink","http://www.w3.org/1999/xlink") ,("xmlns:dc","http://purl.org/dc/elements/1.1/") ,("xmlns:meta","urn:oasis:names:tc:opendocument:xmlns:meta:1.0") ,("xmlns:ooo","http://openoffice.org/2004/office") ,("xmlns:grddl","http://www.w3.org/2003/g/data-view#") ,("office:version","1.2")] $ ( inTagsSimple "office:meta" $ ( inTagsSimple "dc:title" (text $ escapeStringForXML (stringify title)) ) ) ) -- make sure mimetype is first let mimetypeEntry = toEntry "mimetype" epochtime $ fromStringLazy "application/vnd.oasis.opendocument.text" let archive'' = addEntryToArchive mimetypeEntry $ addEntryToArchive metaEntry archive' return $ fromArchive archive'' -- | transform both Image and Math elements transformPicMath :: PandocMonad m => WriterOptions ->Inline -> O m Inline transformPicMath opts (Image attr@(id', cls, _) lab (src,t)) = do res <- runExceptT $ lift $ P.fetchItem (writerSourceURL opts) src case res of Left (_ :: PandocError) -> do lift $ P.warning $ "Could not find image `" ++ src ++ "', skipping..." return $ Emph lab Right (img, mbMimeType) -> do (ptX, ptY) <- case imageSize img of Right s -> return $ sizeInPoints s Left msg -> do lift $ P.warning $ "Could not determine image size in `" ++ src ++ "': " ++ msg return (100, 100) let dims = case (getDim Width, getDim Height) of (Just w, Just h) -> [("width", show w), ("height", show h)] (Just w@(Percent _), Nothing) -> [("width", show w), ("style:rel-height", "scale")] (Nothing, Just h@(Percent _)) -> [("style:rel-width", "scale"), ("height", show h)] (Just w@(Inch i), Nothing) -> [("width", show w), ("height", show (i / ratio) ++ "in")] (Nothing, Just h@(Inch i)) -> [("width", show (i * ratio) ++ "in"), ("height", show h)] _ -> [("width", show ptX ++ "pt"), ("height", show ptY ++ "pt")] where ratio = ptX / ptY getDim dir = case (dimension dir attr) of Just (Percent i) -> Just $ Percent i Just dim -> Just $ Inch $ inInch opts dim Nothing -> Nothing let newattr = (id', cls, dims) entries <- gets stEntries let extension = fromMaybe (takeExtension $ takeWhile (/='?') src) (mbMimeType >>= extensionFromMimeType) let newsrc = "Pictures/" ++ show (length entries) <.> extension let toLazy = B.fromChunks . (:[]) epochtime <- floor `fmap` (lift P.getPOSIXTime) let entry = toEntry newsrc epochtime $ toLazy img modify $ \st -> st{ stEntries = entry : entries } return $ Image newattr lab (newsrc, t) transformPicMath _ (Math t math) = do entries <- gets stEntries let dt = if t == InlineMath then DisplayInline else DisplayBlock case writeMathML dt <$> readTeX math of Left _ -> return $ Math t math Right r -> do let conf = useShortEmptyTags (const False) defaultConfigPP let mathml = ppcTopElement conf r epochtime <- floor `fmap` (lift $ P.getPOSIXTime) let dirname = "Formula-" ++ show (length entries) ++ "/" let fname = dirname ++ "content.xml" let entry = toEntry fname epochtime (fromStringLazy mathml) modify $ \st -> st{ stEntries = entry : entries } return $ RawInline (Format "opendocument") $ render Nothing $ inTags False "draw:frame" [("text:anchor-type", if t == DisplayMath then "paragraph" else "as-char") ,("style:vertical-pos", "middle") ,("style:vertical-rel", "text")] $ selfClosingTag "draw:object" [("xlink:href", dirname) , ("xlink:type", "simple") , ("xlink:show", "embed") , ("xlink:actuate", "onLoad")] transformPicMath _ x = return x