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{-# LANGUAGE ScopedTypeVariables #-}
{-
Copyright (C) 2008-2017 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) 2008-2017 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 Codec.Archive.Zip
import Control.Monad.Except (catchError)
import Control.Monad.State
import qualified Data.ByteString.Lazy as B
import Data.List (isPrefixOf)
import Data.Maybe (fromMaybe)
import System.FilePath (takeDirectory, takeExtension, (<.>))
import Text.Pandoc.Class (PandocMonad, report)
import qualified Text.Pandoc.Class as P
import Text.Pandoc.Definition
import Text.Pandoc.ImageSize
import Text.Pandoc.Logging
import Text.Pandoc.MIME (extensionFromMimeType, getMimeType)
import Text.Pandoc.Options (WrapOption (..), WriterOptions (..))
import Text.Pandoc.Pretty
import Text.Pandoc.Shared (stringify)
import Text.Pandoc.UTF8 (fromStringLazy)
import Text.Pandoc.Walk
import Text.Pandoc.Writers.OpenDocument (writeOpenDocument)
import Text.Pandoc.Writers.Shared (fixDisplayMath)
import Text.Pandoc.XML
import Text.TeXMath
import Text.XML.Light.Output
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 "<?xml version=\"1.0\" encoding=\"utf-8\"?>"
$$
( inTags True "manifest:manifest"
[("xmlns:manifest","urn:oasis:names:tc:opendocument:xmlns:manifest:1.0")
,("manifest:version","1.2")]
$ ( selfClosingTag "manifest:file-entry"
[("manifest:media-type","application/vnd.oasis.opendocument.text")
,("manifest:full-path","/")]
$$ vcat ( map toFileEntry $ files )
$$ vcat ( map toFileEntry $ formulas )
)
)
let archive' = addEntryToArchive manifestEntry archive
let metaEntry = toEntry "meta.xml" epochtime
$ fromStringLazy $ render Nothing
$ text "<?xml version=\"1.0\" encoding=\"utf-8\"?>"
$$
( 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))
)
)
)
-- 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)) = catchError
(do (img, mbMimeType) <- P.fetchItem (writerSourceURL opts) src
(ptX, ptY) <- case imageSize opts img of
Right s -> return $ sizeInPoints s
Left msg -> do
report $ CouldNotDetermineImageSize 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 p), Nothing) -> [("width", show w), ("height", show (p / ratio) ++ "%")]
(Nothing, Just h@(Percent p)) -> [("width", show (p * ratio) ++ "%"), ("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))
(\e -> do
report $ CouldNotFetchResource src (show e)
return $ Emph lab)
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
|
