diff --git a/src/Text/Pandoc/Writers/Powerpoint.hs b/src/Text/Pandoc/Writers/Powerpoint.hs
index 3d6b736f2..acb33f582 100644
--- a/src/Text/Pandoc/Writers/Powerpoint.hs
+++ b/src/Text/Pandoc/Writers/Powerpoint.hs
@@ -44,7 +44,7 @@ module Text.Pandoc.Writers.Powerpoint (writePowerpoint) where
import Codec.Archive.Zip
import Text.Pandoc.Definition
import Text.Pandoc.Walk
-import Text.Pandoc.Class (PandocMonad)
+import Text.Pandoc.Class (PandocMonad, report)
import Text.Pandoc.Options (WriterOptions)
import Text.Pandoc.Writers.Shared (fixDisplayMath)
import Text.Pandoc.Writers.Powerpoint.Presentation (documentToPresentation)
@@ -57,6 +57,7 @@ writePowerpoint :: (PandocMonad m)
-> m BL.ByteString
writePowerpoint opts (Pandoc meta blks) = do
let blks' = walk fixDisplayMath blks
- pres <- documentToPresentation opts (Pandoc meta blks')
+ let (pres, logMsgs) = documentToPresentation opts (Pandoc meta blks')
+ mapM_ report logMsgs
archv <- presentationToArchive opts pres
return $ fromArchive archv
diff --git a/src/Text/Pandoc/Writers/Powerpoint/Presentation.hs b/src/Text/Pandoc/Writers/Powerpoint/Presentation.hs
index 5ced4e8a8..3c5dd617d 100644
--- a/src/Text/Pandoc/Writers/Powerpoint/Presentation.hs
+++ b/src/Text/Pandoc/Writers/Powerpoint/Presentation.hs
@@ -58,9 +58,7 @@ import Control.Monad.State
import Data.List (intercalate)
import Data.Default
import Text.Pandoc.Definition
-import Text.Pandoc.Class (PandocMonad)
import Text.Pandoc.Slides (getSlideLevel)
-import qualified Text.Pandoc.Class as P
import Text.Pandoc.Options
import Text.Pandoc.Logging
import Text.Pandoc.Walk
@@ -97,17 +95,23 @@ instance Default WriterEnv where
data WriterState = WriterState { stNoteIds :: M.Map Int [Block]
-- associate anchors with slide id
, stAnchorMap :: M.Map String Int
+ , stLog :: [LogMessage]
} deriving (Show, Eq)
instance Default WriterState where
def = WriterState { stNoteIds = mempty
- , stAnchorMap= mempty
+ , stAnchorMap = mempty
+ , stLog = []
}
-type Pres m = ReaderT WriterEnv (StateT WriterState m)
+addLogMessage :: LogMessage -> Pres ()
+addLogMessage msg = modify $ \st -> st{stLog = msg : (stLog st)}
-runPres :: Monad m => WriterEnv -> WriterState -> Pres m a -> m a
-runPres env st p = evalStateT (runReaderT p env) st
+type Pres = ReaderT WriterEnv (State WriterState)
+
+runPres :: WriterEnv -> WriterState -> Pres a -> (a, [LogMessage])
+runPres env st p = (pres, reverse $ stLog finalSt)
+ where (pres, finalSt) = runState (runReaderT p env) st
-- GHC 7.8 will still complain about concat <$> mapM unless we specify
-- Functor. We can get rid of this when we stop supporting GHC 7.8.
@@ -234,10 +238,10 @@ instance Default PicProps where
--------------------------------------------------
-inlinesToParElems :: Monad m => [Inline] -> Pres m [ParaElem]
+inlinesToParElems :: [Inline] -> Pres [ParaElem]
inlinesToParElems ils = concatMapM inlineToParElems ils
-inlineToParElems :: Monad m => Inline -> Pres m [ParaElem]
+inlineToParElems :: Inline -> Pres [ParaElem]
inlineToParElems (Str s) = do
pr <- asks envRunProps
return [Run pr s]
@@ -288,7 +292,7 @@ isListType (BulletList _) = True
isListType (DefinitionList _) = True
isListType _ = False
-registerAnchorId :: PandocMonad m => String -> Pres m ()
+registerAnchorId :: String -> Pres ()
registerAnchorId anchor = do
anchorMap <- gets stAnchorMap
slideId <- asks envCurSlideId
@@ -302,7 +306,7 @@ blockQuoteSize = 20
noteSize :: Pixels
noteSize = 18
-blockToParagraphs :: PandocMonad m => Block -> Pres m [Paragraph]
+blockToParagraphs :: Block -> Pres [Paragraph]
blockToParagraphs (Plain ils) = do
parElems <- inlinesToParElems ils
pProps <- asks envParaProps
@@ -362,7 +366,7 @@ blockToParagraphs (OrderedList listAttr blksLst) = do
}}) $
concatMapM multiParBullet blksLst
blockToParagraphs (DefinitionList entries) = do
- let go :: PandocMonad m => ([Inline], [[Block]]) -> Pres m [Paragraph]
+ let go :: ([Inline], [[Block]]) -> Pres [Paragraph]
go (ils, blksLst) = do
term <-blockToParagraphs $ Para [Strong ils]
-- For now, we'll treat each definition term as a
@@ -373,11 +377,11 @@ blockToParagraphs (DefinitionList entries) = do
blockToParagraphs (Div (_, ("notes" : []), _) _) = return []
blockToParagraphs (Div _ blks) = concatMapM blockToParagraphs blks
blockToParagraphs blk = do
- P.report $ BlockNotRendered blk
+ addLogMessage $ BlockNotRendered blk
return []
-- Make sure the bullet env gets turned off after the first para.
-multiParBullet :: PandocMonad m => [Block] -> Pres m [Paragraph]
+multiParBullet :: [Block] -> Pres [Paragraph]
multiParBullet [] = return []
multiParBullet (b:bs) = do
pProps <- asks envParaProps
@@ -386,7 +390,7 @@ multiParBullet (b:bs) = do
concatMapM blockToParagraphs bs
return $ p ++ ps
-cellToParagraphs :: PandocMonad m => Alignment -> TableCell -> Pres m [Paragraph]
+cellToParagraphs :: Alignment -> TableCell -> Pres [Paragraph]
cellToParagraphs algn tblCell = do
paras <- mapM (blockToParagraphs) tblCell
let alignment = case algn of
@@ -397,13 +401,13 @@ cellToParagraphs algn tblCell = do
paras' = map (map (\p -> p{paraProps = (paraProps p){pPropAlign = alignment}})) paras
return $ concat paras'
-rowToParagraphs :: PandocMonad m => [Alignment] -> [TableCell] -> Pres m [[Paragraph]]
+rowToParagraphs :: [Alignment] -> [TableCell] -> Pres [[Paragraph]]
rowToParagraphs algns tblCells = do
-- We have to make sure we have the right number of alignments
let pairs = zip (algns ++ repeat AlignDefault) tblCells
mapM (\(a, tc) -> cellToParagraphs a tc) pairs
-blockToShape :: PandocMonad m => Block -> Pres m Shape
+blockToShape :: Block -> Pres Shape
blockToShape (Plain (il:_)) | Image attr ils (url, _) <- il =
Pic def url attr <$> (inlinesToParElems ils)
blockToShape (Para (il:_)) | Image attr ils (url, _) <- il =
@@ -441,7 +445,7 @@ combineShapes ((TextBox (p:ps)) : (TextBox (p':ps')) : ss) =
combineShapes $ TextBox ((p:ps) ++ (p':ps')) : ss
combineShapes (s:ss) = s : combineShapes ss
-blocksToShapes :: PandocMonad m => [Block] -> Pres m [Shape]
+blocksToShapes :: [Block] -> Pres [Shape]
blocksToShapes blks = combineShapes <$> mapM blockToShape blks
isImage :: Inline -> Bool
@@ -449,7 +453,7 @@ isImage (Image _ _ _) = True
isImage (Link _ ((Image _ _ _) : _) _) = True
isImage _ = False
-splitBlocks' :: Monad m => [Block] -> [[Block]] -> [Block] -> Pres m [[Block]]
+splitBlocks' :: [Block] -> [[Block]] -> [Block] -> Pres [[Block]]
splitBlocks' cur acc [] = return $ acc ++ (if null cur then [] else [cur])
splitBlocks' cur acc (HorizontalRule : blks) =
splitBlocks' [] (acc ++ (if null cur then [] else [cur])) blks
@@ -486,10 +490,10 @@ splitBlocks' cur acc (d@(Div (_, classes, _) _): blks) | "columns" `elem` classe
_ -> splitBlocks' [] (acc ++ (if null cur then [] else [cur]) ++ [[d]]) blks
splitBlocks' cur acc (blk : blks) = splitBlocks' (cur ++ [blk]) acc blks
-splitBlocks :: Monad m => [Block] -> Pres m [[Block]]
+splitBlocks :: [Block] -> Pres [[Block]]
splitBlocks = splitBlocks' [] []
-blocksToSlide' :: PandocMonad m => Int -> [Block] -> Pres m Slide
+blocksToSlide' :: Int -> [Block] -> Pres Slide
blocksToSlide' lvl ((Header n (ident, _, _) ils) : blks)
| n < lvl = do
registerAnchorId ident
@@ -511,9 +515,9 @@ blocksToSlide' _ (blk : blks)
, (Div (_, clsL, _) blksL) : (Div (_, clsR, _) blksR) : remaining <- divBlks
, "column" `elem` clsL, "column" `elem` clsR = do
unless (null blks)
- (mapM (P.report . BlockNotRendered) blks >> return ())
+ (mapM (addLogMessage . BlockNotRendered) blks >> return ())
unless (null remaining)
- (mapM (P.report . BlockNotRendered) remaining >> return ())
+ (mapM (addLogMessage . BlockNotRendered) remaining >> return ())
mbSplitBlksL <- splitBlocks blksL
mbSplitBlksR <- splitBlocks blksR
let blksL' = case mbSplitBlksL of
@@ -540,7 +544,7 @@ blocksToSlide' _ [] = return $ ContentSlide { contentSlideHeader = []
, contentSlideContent = []
}
-blocksToSlide :: PandocMonad m => [Block] -> Pres m Slide
+blocksToSlide :: [Block] -> Pres Slide
blocksToSlide blks = do
slideLevel <- asks envSlideLevel
blocksToSlide' slideLevel blks
@@ -553,14 +557,14 @@ makeNoteEntry n blks =
(Para ils : blks') -> (Para $ enum : Space : ils) : blks'
_ -> (Para [enum]) : blks
-forceFontSize :: PandocMonad m => Pixels -> Pres m a -> Pres m a
+forceFontSize :: Pixels -> Pres a -> Pres a
forceFontSize px x = do
rpr <- asks envRunProps
local (\r -> r {envRunProps = rpr{rPropForceSize = Just px}}) x
-- We leave these as blocks because we will want to include them in
-- the TOC.
-makeNotesSlideBlocks :: PandocMonad m => Pres m [Block]
+makeNotesSlideBlocks :: Pres [Block]
makeNotesSlideBlocks = do
noteIds <- gets stNoteIds
slideLevel <- asks envSlideLevel
@@ -579,7 +583,7 @@ makeNotesSlideBlocks = do
M.toList noteIds
return $ hdr : blks
-getMetaSlide :: PandocMonad m => Pres m (Maybe Slide)
+getMetaSlide :: Pres (Maybe Slide)
getMetaSlide = do
meta <- asks envMetadata
title <- inlinesToParElems $ docTitle meta
@@ -600,7 +604,7 @@ getMetaSlide = do
, metadataSlideDate = date
}
-- adapted from the markdown writer
-elementToListItem :: PandocMonad m => Shared.Element -> Pres m [Block]
+elementToListItem :: Shared.Element -> Pres [Block]
elementToListItem (Shared.Sec lev _nums (ident,_,_) headerText subsecs) = do
opts <- asks envOpts
let headerLink = if null ident
@@ -613,7 +617,7 @@ elementToListItem (Shared.Sec lev _nums (ident,_,_) headerText subsecs) = do
return [Plain headerLink, BulletList listContents]
elementToListItem (Shared.Blk _) = return []
-makeTOCSlide :: PandocMonad m => [Block] -> Pres m Slide
+makeTOCSlide :: [Block] -> Pres Slide
makeTOCSlide blks = do
contents <- BulletList <$> mapM elementToListItem (Shared.hierarchicalize blks)
meta <- asks envMetadata
@@ -676,7 +680,7 @@ applyToSlide f (TwoColumnSlide hdr contentL contentR) = do
contentR' <- mapM (applyToShape f) contentR
return $ TwoColumnSlide hdr' contentL' contentR'
-replaceAnchor :: PandocMonad m => ParaElem -> Pres m ParaElem
+replaceAnchor :: ParaElem -> Pres ParaElem
replaceAnchor (Run rProps s)
| Just (ExternalTarget ('#':anchor, _)) <- rLink rProps = do
anchorMap <- gets stAnchorMap
@@ -688,7 +692,7 @@ replaceAnchor (Run rProps s)
return $ Run rProps' s
replaceAnchor pe = return pe
-blocksToPresentation :: PandocMonad m => [Block] -> Pres m Presentation
+blocksToPresentation :: [Block] -> Pres Presentation
blocksToPresentation blks = do
opts <- asks envOpts
let metadataStartNum = 1
@@ -732,10 +736,9 @@ blocksToPresentation blks = do
slides' <- mapM (applyToSlide replaceAnchor) slides
return $ Presentation slides'
-documentToPresentation :: PandocMonad m
- => WriterOptions
+documentToPresentation :: WriterOptions
-> Pandoc
- -> m Presentation
+ -> (Presentation, [LogMessage])
documentToPresentation opts (Pandoc meta blks) = do
let env = def { envOpts = opts
, envMetadata = meta