diff options
Diffstat (limited to 'src/Hakyll/Web')
| -rw-r--r-- | src/Hakyll/Web/Tags.hs | 121 |
1 files changed, 97 insertions, 24 deletions
diff --git a/src/Hakyll/Web/Tags.hs b/src/Hakyll/Web/Tags.hs index fe99e3c..f22a155 100644 --- a/src/Hakyll/Web/Tags.hs +++ b/src/Hakyll/Web/Tags.hs @@ -49,8 +49,12 @@ module Hakyll.Web.Tags , tagsRules , renderTags , renderTagCloud + , renderTagCloudWith + , tagCloudField + , tagCloudFieldWith , renderTagList , tagsField + , tagsFieldWith , categoryField , sortTagsBy , caseInsensitiveTags @@ -184,7 +188,6 @@ renderTags makeHtml concatHtml tags = do -------------------------------------------------------------------------------- -- | Render a tag cloud in HTML --- TODO: Maybe produce a Context here renderTagCloud :: Double -- ^ Smallest font size, in percent -> Double @@ -193,19 +196,75 @@ renderTagCloud :: Double -- ^ Input tags -> Compiler String -- ^ Rendered cloud -renderTagCloud minSize maxSize = renderTags makeLink (intercalate " ") +renderTagCloud = renderTagCloudWith makeLink (intercalate " ") where - makeLink tag url count min' max' = renderHtml $ + makeLink minSize maxSize tag url count min' max' = renderHtml $ H.a ! A.style (toValue $ "font-size: " ++ size count min' max') ! A.href (toValue url) $ toHtml tag + where + -- Show the relative size of one 'count' in percent + size count min' max' = + let diff = 1 + fromIntegral max' - fromIntegral min' + relative = (fromIntegral count - fromIntegral min') / diff + size' = floor $ minSize + relative * (maxSize - minSize) + in show (size' :: Int) ++ "%" + + +-------------------------------------------------------------------------------- +-- | Render a tag cloud in HTML +renderTagCloudWith :: (Double -> Double -> + String -> String -> Int -> Int -> Int -> String) + -- ^ Render a single tag link + -> ([String] -> String) + -- ^ Concatenate links + -> Double + -- ^ Smallest font size, in percent + -> Double + -- ^ Biggest font size, in percent + -> Tags + -- ^ Input tags + -> Compiler String + -- ^ Rendered cloud +renderTagCloudWith makeLink cat minSize maxSize = + renderTags (makeLink minSize maxSize) cat + + +-------------------------------------------------------------------------------- +-- | Render a tag cloud in HTML as a context +tagCloudField :: String + -- ^ Destination key + -> Double + -- ^ Smallest font size, in percent + -> Double + -- ^ Biggest font size, in percent + -> Tags + -- ^ Input tags + -> Context a + -- ^ Context +tagCloudField key minSize maxSize tags = + field key $ \_ -> renderTagCloud minSize maxSize tags + - -- Show the relative size of one 'count' in percent - size count min' max' = - let diff = 1 + fromIntegral max' - fromIntegral min' - relative = (fromIntegral count - fromIntegral min') / diff - size' = floor $ minSize + relative * (maxSize - minSize) - in show (size' :: Int) ++ "%" +-------------------------------------------------------------------------------- +-- | Render a tag cloud in HTML as a context +tagCloudFieldWith :: String + -- ^ Destination key + -> (Double -> Double -> + String -> String -> Int -> Int -> Int -> String) + -- ^ Render a single tag link + -> ([String] -> String) + -- ^ Concatenate links + -> Double + -- ^ Smallest font size, in percent + -> Double + -- ^ Biggest font size, in percent + -> Tags + -- ^ Input tags + -> Context a + -- ^ Context +tagCloudFieldWith key makeLink cat minSize maxSize tags = + field key $ \_ -> renderTagCloudWith makeLink cat minSize maxSize tags -------------------------------------------------------------------------------- @@ -215,27 +274,31 @@ renderTagList :: Tags -> Compiler (String) renderTagList = renderTags makeLink (intercalate ", ") where makeLink tag url count _ _ = renderHtml $ - H.a ! A.href (toValue url) $ toHtml (tag ++ " (" ++ show count ++ ")") + H.a ! A.href (toValue url) $ toHtml (tag ++ " (" ++ show count ++ ")") -------------------------------------------------------------------------------- --- | Render tags with links with custom function to get tags -tagsFieldWith :: (Identifier -> Compiler [String]) -- ^ Get the tags - -> String -- ^ Destination field - -> Tags -- ^ Tags structure - -> Context a -- ^ Resulting context -tagsFieldWith getTags' key tags = field key $ \item -> do +-- | Render tags with links with custom functions to get tags and to +-- render links +tagsFieldWith :: (Identifier -> Compiler [String]) + -- ^ Get the tags + -> (String -> (Maybe FilePath) -> Maybe H.Html) + -- ^ Render link for one tag + -> ([H.Html] -> H.Html) + -- ^ Concatenate tag links + -> String + -- ^ Destination field + -> Tags + -- ^ Tags structure + -> Context a + -- ^ Resulting context +tagsFieldWith getTags' renderLink cat key tags = field key $ \item -> do tags' <- getTags' $ itemIdentifier item links <- forM tags' $ \tag -> do route' <- getRoute $ tagsMakeId tags tag return $ renderLink tag route' - return $ renderHtml $ mconcat $ intersperse ", " $ catMaybes $ links - where - -- Render one tag link - renderLink _ Nothing = Nothing - renderLink tag (Just filePath) = Just $ - H.a ! A.href (toValue $ toUrl filePath) $ toHtml tag + return $ renderHtml $ cat $ catMaybes $ links -------------------------------------------------------------------------------- @@ -243,7 +306,8 @@ tagsFieldWith getTags' key tags = field key $ \item -> do tagsField :: String -- ^ Destination key -> Tags -- ^ Tags -> Context a -- ^ Context -tagsField = tagsFieldWith getTags +tagsField = + tagsFieldWith getTags simpleRenderLink (mconcat . intersperse ", ") -------------------------------------------------------------------------------- @@ -251,7 +315,16 @@ tagsField = tagsFieldWith getTags categoryField :: String -- ^ Destination key -> Tags -- ^ Tags -> Context a -- ^ Context -categoryField = tagsFieldWith getCategory +categoryField = + tagsFieldWith getCategory simpleRenderLink (mconcat . intersperse ", ") + + +-------------------------------------------------------------------------------- +-- | Render one tag link +simpleRenderLink :: String -> (Maybe FilePath) -> Maybe H.Html +simpleRenderLink _ Nothing = Nothing +simpleRenderLink tag (Just filePath) = + Just $ H.a ! A.href (toValue $ toUrl filePath) $ toHtml tag -------------------------------------------------------------------------------- |