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{-# LANGUAGE ScopedTypeVariables #-}
{-
Copyright (C) 2008-2010 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.Writers.ODT
Copyright : Copyright (C) 2008-2010 John MacFarlane
License : GNU GPL, version 2 or above
Maintainer : John MacFarlane <jgm@berkeley.edu>
Stability : alpha
Portability : portable
Conversion of 'Pandoc' documents to ODT.
-}
module Text.Pandoc.Writers.ODT ( writeODT ) where
import Data.IORef
import Data.List ( isPrefixOf )
import qualified Data.ByteString.Lazy as B
import Text.Pandoc.UTF8 ( fromStringLazy )
import Codec.Archive.Zip
import Text.Pandoc.Options ( WriterOptions(..) )
import Text.Pandoc.Shared ( stringify, readDataFile, fetchItem, warn )
import Text.Pandoc.ImageSize ( imageSize, sizeInPoints )
import Text.Pandoc.MIME ( getMimeType )
import Text.Pandoc.Definition
import Text.Pandoc.Generic
import Text.Pandoc.Writers.OpenDocument ( writeOpenDocument )
import Control.Monad (liftM)
import Control.Monad.Trans (liftIO)
import Text.Pandoc.XML
import Text.Pandoc.Pretty
import qualified Control.Exception as E
import Data.Time.Clock.POSIX ( getPOSIXTime )
import System.FilePath ( takeExtension )
-- | Produce an ODT file from a Pandoc document.
writeODT :: WriterOptions -- ^ Writer options
-> Pandoc -- ^ Document to convert
-> IO B.ByteString
writeODT opts doc@(Pandoc (Meta title _ _) _) = do
let datadir = writerUserDataDir opts
refArchive <- liftM toArchive $
case writerReferenceODT opts of
Just f -> B.readFile f
Nothing -> (B.fromChunks . (:[])) `fmap`
readDataFile datadir "reference.odt"
-- handle pictures
picEntriesRef <- newIORef ([] :: [Entry])
let sourceDir = writerSourceDirectory opts
doc' <- bottomUpM (transformPic sourceDir picEntriesRef) doc
let newContents = writeOpenDocument opts{writerWrapText = False} doc'
epochtime <- floor `fmap` getPOSIXTime
let contentEntry = toEntry "content.xml" epochtime $ fromStringLazy newContents
picEntries <- readIORef picEntriesRef
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)
]
let files = [ ent | ent <- filesInArchive archive, not ("META-INF" `isPrefixOf` ent) ]
let manifestEntry = toEntry "META-INF/manifest.xml" epochtime
$ fromStringLazy $ show
$ text "<?xml version=\"1.0\" encoding=\"utf-8\"?>"
$$
( inTags True "manifest:manifest"
[("xmlns:manifest","urn:oasis:names:tc:opendocument:xmlns:manifest:1.0")]
$ ( selfClosingTag "manifest:file-entry"
[("manifest:media-type","application/vnd.oasis.opendocument.text")
,("manifest:version","1.2")
,("manifest:full-path","/")]
$$ vcat ( map toFileEntry $ files )
)
)
let archive' = addEntryToArchive manifestEntry archive
let metaEntry = toEntry "meta.xml" epochtime
$ fromStringLazy $ show
$ text "<?xml version=\"1.0\" encoding=\"utf-8\"?>"
$$
( 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))
)
)
)
let archive'' = addEntryToArchive metaEntry archive'
return $ fromArchive archive''
transformPic :: FilePath -> IORef [Entry] -> Inline -> IO Inline
transformPic sourceDir entriesRef (Image lab (src,_)) = do
res <- liftIO $ E.try $ fetchItem sourceDir src
case res of
Left (_ :: E.SomeException) -> do
liftIO $ warn $ "Could not find image `" ++ src ++ "', skipping..."
return $ Emph lab
Right (img, _) -> do
let size = imageSize img
let (w,h) = maybe (0,0) id $ sizeInPoints `fmap` size
let tit' = show w ++ "x" ++ show h
entries <- readIORef entriesRef
let newsrc = "Pictures/" ++ show (length entries) ++ takeExtension src
let toLazy = B.fromChunks . (:[])
epochtime <- floor `fmap` getPOSIXTime
let entry = toEntry newsrc epochtime $ toLazy img
modifyIORef entriesRef (entry:)
return $ Image lab (newsrc, tit')
transformPic _ _ x = return x
|
