diff --git a/Buffers.hs b/Buffers.hs new file mode 100644 --- /dev/null +++ b/Buffers.hs @@ -0,0 +1,103 @@ +-- | Buffers.hs +-- A module which contain buffer structures (structures which contain +-- text and info about opened rooms and privates). + +module Buffers where + +import Network.XMPP (TCPConnection) +import Network.XMPP.Roster (RosterItem(..)) +import Network.XMPP.Presence (Status(..), StatusType(..)) +import Control.Concurrent (ThreadId) +import Graphics.Vty (Event) +import qualified Data.Map as M +import Data.List + + +type Buffers = M.Map Key Buffer +type Key = String +data Buffer = BufHelp [Content] + | BufAccount Account + | BufChat Chat + | BufGroupchat Groupchat + +-- Show instances +instance Show Buffer where + show (BufHelp _) = "[help]" + show (BufAccount acc) = + case connection acc of + OK _ _ -> c:" [o] "++accName acc + NoConnection -> c:" [_] "++accName acc + Trying -> c:" [c] "++accName acc + where c = if accCollapsed acc then '+' else '-' + show (BufChat chat) = " "++(show $ status chat)++ + " "++(itemJid $ item chat) + show (BufGroupchat _) = "" + +instance Show Status where + show (Status StatusOnline _) = "[o]" + show (Status StatusAway _) = "[a]" + show (Status StatusChat _) = "[c]" + show (Status StatusDND _) = "[d]" + show (Status StatusXA _) = "[n]" + show (Status StatusOffline _) = "[_]" + + +data Account = Account + { accName :: String + , username :: String + , server :: String + , password :: String + , resource :: String + , defaultNick :: String + , connection :: Connection + , accCollapsed :: Bool + } + +data Connection = OK TCPConnection ThreadId + | NoConnection + | Trying + +data Chat = Chat + { item :: RosterItem + , status :: Status + , chatName :: String + , chatConn :: TCPConnection + , chatContents :: [Content] + } + +data Groupchat = Groupchat + { groupchatContents :: [Content] + , groupchatNick :: String + } + +-- | New contents goes at top for more eaiser insert. +data Content = Msg String + | MyMsg String + | HistoryMsg String + | InfoMsg String + + +data MEvent = VtyEvent Event + | InsBuffer Key Buffer + | NewMsg Key Content + | NewStatus Key Status + + +insElem :: Key -> Buffer -> Buffers -> Buffers +insElem k = M.insert k + +getAccount :: Key -> Buffers -> Maybe Account +getAccount cur buffers = + case M.lookup cur buffers of + Just (BufAccount account) -> Just account + _ -> Nothing + +getBuf :: Key -> Buffers -> Buffer +getBuf cur buffers = + case M.lookup cur buffers of + Just buf -> buf + _ -> BufHelp [] + +killBuffers :: String -> Buffers -> Buffers +killBuffers startswith = + M.filterWithKey (\k _ -> not $ startswith `isPrefixOf` k) diff --git a/Config.hs b/Config.hs new file mode 100644 --- /dev/null +++ b/Config.hs @@ -0,0 +1,98 @@ +-- | Config.hs +-- A module which parse config file and contain Config structure for +-- further usage. + +module Config ( + Config, + readConfig, + getCF, + setCF +) where + +import Buffers + +import Data.ConfigFile +import qualified Data.Map as M +import System.Directory +import Control.Monad.Error +import Control.OldException +import Data.List + + +type Config = M.Map OptionSpec String + +-- | Default config. If no value in config file, then default value +-- will be used. +defaultConfig = [ ("client", "matsuri") + , ("version", "unknown") + , ("OS", "unknown") + , ("roster_width", "30") + , ("show_roster", "1") + ] + + +-- | Reading "main" and "account_*" sections of config file. +readConfig :: FilePath -> IO (Config, Buffers) +readConfig filePath = do + home <- getHomeDirectory + fileCnt <- handle (\_ -> return "[main]") (readFile (home++"/"++filePath)) + let def_conf = M.fromList defaultConfig + confs <- runErrorT $ do + conf <- readstring emptyCP fileCnt + + -- reading and updating main options + mainOptions <- items conf "main" + let config = foldr updateValue def_conf mainOptions + + -- reading account_* sections + let sects = filter (\acc -> take 8 acc == "account_") (sections conf) + accountsList <- forM sects $ \account -> do + accountItems <- items conf account + return (drop 8 account, accountItems) + let start = M.singleton "help" (BufHelp []) + accounts = foldr updateAccount start accountsList + + return (config, accounts) + case confs of + Left _ -> error "can't parse config file (wrong format)" + Right conf -> return conf + +-- | Update option's value or exit with error if no such option. +updateValue :: (OptionSpec, String) -> Config -> Config +updateValue (option, value) config = + let (value', config') = M.updateLookupWithKey + (\_ _ -> Just value) + option + config + in case value' of + Just _ -> config' + Nothing -> error $ "can't parse config file\ + \ (unknown \"" ++ option ++ "\" option)" + +-- | Update account in HashTable or exit with error if wrong options. +updateAccount :: (String, [(OptionSpec, String)]) -> Buffers -> Buffers +updateAccount (accountName, accountItems) = + M.insert + accountName + (BufAccount Account + { accName = accountName + , username = findItem "username" + , server = findItem "server" + , password = findItem "password" + , resource = findItem "resource" + , defaultNick = findItem "nick" + , connection = NoConnection + , accCollapsed = False + }) + where findItem itemName = + case find (\(name, _) -> name == itemName) accountItems of + Just value -> snd value + _ -> error $ "can't parse config file\ + \ (wrong \"" ++ accountName ++ "\" account options)" + + +getCF :: String -> Config -> String +getCF k = maybe "" id . M.lookup k + +setCF :: String -> String -> Config -> Config +setCF k v = M.adjust (const v) k diff --git a/Help.hs b/Help.hs new file mode 100644 --- /dev/null +++ b/Help.hs @@ -0,0 +1,20 @@ +module Help ( + help_all +) where + +help_all :: String +help_all = "\ +\Commands:\n\ +\\n\ +\/help -- this help message\n\ +\/c -- connect account\n\ +\/d -- disconnect account\n\ +\/q -- exit\n\ +\\n\ +\Hotkeys:\n\ +\\n\ +\C-n C-p -- moves in roster\n\ +\C-a C-f C-b C-e -- moves in edit box\n\ +\C-v -- show/hide roster\n\ +\RET -- collapse/expand group\n\ +\C-q -- exit" diff --git a/Jabber.hs b/Jabber.hs new file mode 100644 --- /dev/null +++ b/Jabber.hs @@ -0,0 +1,107 @@ +-- | Jabber.hs +-- A module for interaction with XMPP. + +module Jabber where + +import Buffers +import Config +import Utils + +import Network +import Network.XMPP +import Network.XMPP.Presence +import Network.XMPP.Roster +import Network.XMPP.MUC +import Control.Concurrent +import Control.Concurrent.MVar +import Data.Maybe + + +connect :: MVar MEvent -> Config -> Account -> IO Buffer +connect mev config acc = + case connection acc of + NoConnection -> do + forkIO $ do + c <- openStream (server acc) + getStreamStart c + runXMPP c $ do + err <- startAuth (username acc) + (server acc) + (password acc) + (resource acc) + if err == 0 + then do + tId <- liftIO $ myThreadId + insConn (OK c tId) + + mapM_ (liftIO . putMVar mev . insBuf c) =<< getRoster + sendPresence + -- set handlers + handleVersion (getCF "client" config) + (getCF "version" config) + (getCF "OS" config) + addHandler isChat (chatCB mev k) True + addHandler isPresence (presenceCB mev k) True + --- + else insConn NoConnection + return $ doBuf Trying + _ -> return (BufAccount acc) + where + insConn = liftIO . putMVar mev . InsBuffer (accName acc) . doBuf + doBuf conn = BufAccount acc{connection=conn} + + k = accName acc + insBuf c item = InsBuffer (chatName' item) (item2buf c item) + item2buf c item = BufChat (Chat item offline (chatName' item) c []) + offline = Status StatusOffline [] + chatName' item = k++"|"++itemJid item + + +-- | Close account connection. +disconnect :: Account -> IO Buffer +disconnect account = + case connection account of + OK c tId -> do + killThread tId + closeConnection c + return (BufAccount account{connection=NoConnection}) + _ -> return (BufAccount account) + + +-- | Status changes. +presenceCB :: MVar MEvent -> String -> StanzaHandler +presenceCB mev acc stanza = do + let (jid, res) = getJidRes stanza + presence = doPresence stanza + case presence of + Available status' -> putStatus jid status' + Unavailable status' -> putStatus jid status' + _ -> return () + where + putStatus jid = liftIO . putMVar mev . NewStatus (acc++"|"++jid) + + +-- | Send chat message. +sendChatMessage :: Chat -> String -> IO Buffer +sendChatMessage chat msg = do + runXMPP (chatConn chat) $ sendMessage (itemJid $ item chat) msg + time <- nowTime + let msg' = MyMsg $ time++" => "++msg + return $ BufChat chat{chatContents=msg':(chatContents chat)} + + +-- | Callback for chat messages. +chatCB :: MVar MEvent -> String -> StanzaHandler +chatCB mev acc stanza = do + let stamp = getMessageStamp stanza + isHistory = isJust stamp + time <- liftIO $ if isHistory + then utcToZoned $ maybe "" id stamp + else nowTime + + let (jid, res) = getJidRes stanza + body = maybe "" id (getMessageBody stanza) + msg = time++" <= "++body + msg' = if isHistory then HistoryMsg msg else Msg msg + + liftIO $ putMVar mev $ NewMsg (acc++"|"++jid) msg' diff --git a/LICENSE b/LICENSE new file mode 100644 --- /dev/null +++ b/LICENSE @@ -0,0 +1,674 @@ + GNU GENERAL PUBLIC LICENSE + Version 3, 29 June 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The GNU General Public License is a free, copyleft license for +software and other kinds of works. + + The licenses for most software and other practical works are designed +to take away your freedom to share and change the works. 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If your program is a subroutine library, you +may consider it more useful to permit linking proprietary applications with +the library. If this is what you want to do, use the GNU Lesser General +Public License instead of this License. But first, please read +. diff --git a/Main.hs b/Main.hs new file mode 100644 --- /dev/null +++ b/Main.hs @@ -0,0 +1,146 @@ +{-# LANGUAGE RecordWildCards #-} + +-- | Main.hs +-- Main program module. + +import Buffers +import Config +import Help +import Jabber +import UI + +import Network +import Control.Concurrent +import Control.Concurrent.MVar +import qualified Data.Map as M +import Graphics.Vty +import Graphics.Vty.Widgets.All +import qualified Widgets.Tree as T +import qualified Widgets.EditBox as E + + +-- | Read configs and start main loop. +main = withSocketsDo $ do + -- read config + (config, buffers) <- readConfig ".matsurirc" + vty <- mkVty + mev <- newEmptyMVar + -- main loop + forkIO $ loopGetEvent mev vty + rerender mev vty (defaultUI buffers) config buffers + -- disconnect all accounts + mapM_ disconnect $ [acc | BufAccount acc <- (M.elems buffers)] + -- shutdown && exiting + shutdown vty + where + loopGetEvent mev vty = do + event <- next_event vty + putMVar mev (VtyEvent event) + loopGetEvent mev vty + + +-- | Get event and process it. +mainLoop mev vty st@(UIState {..}) config buffers = do + event <- takeMVar mev + case event of + InsBuffer k buffer -> insElem' k buffer + --- + NewMsg k msg -> + case getBuf k buffers of + BufChat chat -> do + let contents = msg:(chatContents chat) + insElem' k $ BufChat chat{chatContents=contents} + _ -> skip + --- + NewStatus k status' -> + case getBuf k buffers of + BufChat chat -> insElem' k $ BufChat chat{status=status'} + _ -> skip + --- + VtyEvent event' -> case event' of + -- tree + EvKey (KASCII 'p') [MCtrl] -> rerender' $ st { roster = T.moveUp roster } + EvKey (KASCII 'n') [MCtrl] -> rerender' $ st { roster = T.moveDn roster } + EvKey KEnter [] | E.contents edit == "" -> + case getAccount cur buffers of + Just acc -> + let buf = BufAccount acc{accCollapsed = not $ accCollapsed acc} + in insElem' cur buf + _ -> skip + + -- show/hide + EvKey (KASCII 'v') [MCtrl] -> + let isShow = getCF "show_roster" config + isShow' = if null isShow then "1" + else "" + config' = setCF "show_roster" isShow' config + in rerender mev vty st config' buffers + + -- edit box + EvKey (KASCII c ) [] -> rerender' $ st { edit = E.insert c edit } + EvKey (KASCII 'a') [MCtrl] -> rerender' $ st { edit = E.moveToHome edit } + EvKey (KASCII 'f') [MCtrl] -> rerender' $ st { edit = E.moveRight edit } + EvKey (KASCII 'b') [MCtrl] -> rerender' $ st { edit = E.moveLeft edit } + EvKey (KASCII 'e') [MCtrl] -> rerender' $ st { edit = E.moveToEnd edit } + EvKey KBS [] -> rerender' $ st { edit = E.backSpace edit } + EvKey KDel [] -> rerender' $ st { edit = E.delete edit } + -- parse command || send message + EvKey KEnter [] -> case E.contents edit of + "/q" -> return () + ('/':cmd) -> do + buffers' <- parseCmd cmd + let st' = st { edit = E.empty + , roster = mkTree roster buffers' + } + rerender mev vty st' config buffers' + msg -> case getBuf cur buffers of + BufChat chat -> do + buffer <- sendChatMessage chat (E.contents edit) + let buffers' = insElem cur buffer buffers + st' = st { edit = E.empty } + rerender mev vty st' config buffers' + _ -> skip + + -- other + EvResize w h -> rerender' st + EvKey (KASCII 'q') [MCtrl] -> return () + _ -> skip + where + skip = mainLoop mev vty st config buffers + rerender' st = rerender mev vty st config buffers + -- insert new element in buffer (or simply replace old element) + -- and re-create roster tree + insElem' k buffer = + let buffers' = insElem k buffer buffers + st' = st { roster = mkTree roster buffers' } + in rerender mev vty st' config buffers' + -- connect + parseCmd "c" = case getAccount cur buffers of + Just acc -> do + buffer <- connect mev config acc + return $ insElem (accName acc) buffer buffers + _ -> ins2help (InfoMsg "can't connect: not an account") + -- disconnect + parseCmd "d" = case getAccount cur buffers of + Just acc -> do + buffer <- disconnect acc + let buffers' = insElem cur buffer buffers + buffers'' = killBuffers (accName acc++"|") buffers' + return buffers'' + _ -> ins2help (InfoMsg "can't disconnect: not an account") + where cur = T.cur roster + -- help + parseCmd "help" = ins2help (InfoMsg help_all) + parseCmd unknown_cmd = ins2help (InfoMsg $ "unknown `"++unknown_cmd++ + "' command, try `/help'") + --- + cur = T.cur roster + ins2help cnt = return $ case getBuf "help" buffers of + BufHelp cnts -> insElem "help" (BufHelp $ cnt:cnts) buffers + _ -> buffers + + +rerender mev vty st config buffers + = mkImage vty (mkUI st config buffers) >>= + update vty . pic_for_image >> + mainLoop mev vty st config buffers diff --git a/README b/README new file mode 100644 --- /dev/null +++ b/README @@ -0,0 +1,31 @@ +* Install + +% cabal install + +from dir with sources or + +% cabal update && cabal install matsuri + +to download from hackage. + + +* Config + +Edit matsurirc.example (set your account's username, password, etc) +and copy it to ~/.matsurirc + + +* Using + +Run + +% ~/.cabal/bin/matsuri + +and type `/help'. + + +* More info + +web-page: http://kagami.touhou.ru/projects/show/matsuri +e-mail: newanon@yandex.ru +xmpp: anon0@jabber.ru diff --git a/Setup.hs b/Setup.hs new file mode 100644 --- /dev/null +++ b/Setup.hs @@ -0,0 +1,2 @@ +import Distribution.Simple +main = defaultMain diff --git a/UI.hs b/UI.hs new file mode 100644 --- /dev/null +++ b/UI.hs @@ -0,0 +1,87 @@ +{-# LANGUAGE RecordWildCards #-} + +-- | UI.hs +-- User interface. +module UI ( + UIState(..), + mkUI, + mkTree, + defaultUI +) where + +import Buffers +import Config +import qualified Widgets.Tree as T +import qualified Widgets.EditBox as E +import Widgets.PrettyBorders +import Widgets.TextBox + +import Graphics.Vty +import Graphics.Vty.Widgets.All +import Data.Tree +import qualified Data.Map as M +import Data.List + + +data UIState + = UIState + { roster :: T.Tree + , textBox :: TextBox + , edit :: E.EditBox + } + + +mkUI :: UIState -> Config -> Buffers -> Box +mkUI (UIState {..}) config buffers = + (if null $ getCF "show_roster" config + then tb <--> text def_attr "" + else roster <++> pVBorder def_attr <++> tb) + <--> text (back blue) "info" + <--> edit + where + tb = case getBuf (T.cur roster) buffers of + BufHelp cnts -> mkTextBox cnts config + BufChat chat -> mkTextBox (chatContents chat) config + _ -> mkTextBox [] config + + +mkTextBox :: [Content] -> Config -> TextBox +mkTextBox cnts config = TextBox $ map cnt2line cnts + where + -- todo: read colors from config + cnt2line (Msg msg) = (def_attr, msg) + cnt2line (MyMsg msg) = (fore yellow, msg) + cnt2line (HistoryMsg msg) = (fore cyan, msg) + cnt2line (InfoMsg msg) = (fore cyan, msg) + + +mkTree :: T.Tree -> Buffers -> T.Tree +mkTree roster buffers = + roster { T.nodes = ns } + where + -- all nodes + ns = (Node (T.NodeData False ("[help]", "help")) []):(map mkAcc accs) + -- accounts + accs = [ buf | buf@(BufAccount _) <- M.elems buffers ] + --- + mkAcc buf@(BufAccount acc) + = Node (T.NodeData (accCollapsed acc) (show buf, accName acc)) + $ map (mkChat (accCollapsed acc)) (chats acc) + mkChat coll buf@(BufChat chat) + = Node (T.NodeData coll (show buf, chatName chat)) [] + -- get all chats account + chats acc + = M.elems $ M.filterWithKey (filt (accName acc++"|")) buffers + filt prefix k _ = prefix `isPrefixOf` k + + +defaultUI :: Buffers -> UIState +defaultUI buffers + = UIState { roster = mkTree (T.defaultTree []) buffers + , textBox = TextBox [] + , edit = E.empty + } + +--- +fore = (def_attr `with_fore_color`) +back = (def_attr `with_back_color`) diff --git a/Utils.hs b/Utils.hs new file mode 100644 --- /dev/null +++ b/Utils.hs @@ -0,0 +1,21 @@ +-- | Utils.hs +-- A module for some helper functions. + +module Utils ( + nowTime, + utcToZoned +) where + +import System.Locale +import Data.Time.LocalTime +import Data.Time.Format + +-- | Print current time. +nowTime = getZonedTime >>= format + +-- | Convert UTC string (from jabber:x:delay) to zoned. +utcToZoned :: String -> IO String +utcToZoned t = (utcToLocalZonedTime $ + readTime defaultTimeLocale "%Y%m%dT%H:%M:%S" t) >>= format + +format = return . formatTime defaultTimeLocale "%H:%M:%S" diff --git a/Widgets/EditBox.hs b/Widgets/EditBox.hs new file mode 100644 --- /dev/null +++ b/Widgets/EditBox.hs @@ -0,0 +1,74 @@ +{-# LANGUAGE RecordWildCards #-} +{-# LANGUAGE NamedFieldPuns #-} + +-- | EditBox.hs +-- Multiline edit box widget. +module Widgets.EditBox where + +import Graphics.Vty +import Graphics.Vty.Widgets.Base +import Graphics.Vty.Widgets.WrappedText + + +-- | TODO: multiline +data EditBox = EditBox { front, back :: String } + + +---------------------------------------------------------------------- +-- | Create empty edit box. +empty :: EditBox +empty = EditBox "" "" + +-- | Get contents. +contents :: EditBox -> String +contents (EditBox{..}) = reverse front ++ back + +-- | Insert new symbol. +insert :: Char -> EditBox -> EditBox +insert c box = box {front = c : front box} + +resize w h = id + + +---------------------------------------------------------------------- +-- editing commands +-- TODO: more text editing commands (delete-world, delete-line and so on). + +moveLeft box@(EditBox{front = c:front', back}) = box {front = front', back = c:back} +moveLeft box = box + +moveRight box@(EditBox{front, back = c:back'}) = box {front = c:front, back = back'} +moveRight box = box + +moveToHome box = box {front = "", back = contents box} +moveToEnd box = box {front = reverse $ contents box, back = ""} + +backSpace box@(EditBox{front = c:front'}) = box {front = front'} +backSpace box = box + +delete box@(EditBox{back = c:back'}) = box {back = back'} +delete box = box + + +---------------------------------------------------------------------- +-- render + +instance Widget EditBox where + growHorizontal _ = True + growVertical _ = False + primaryAttribute _ = def_attr + withAttribute w _ = w + + -- TODO: convert empty lines to hFill's + render rgn box@(EditBox{front, back}) + = render rgn $ case back of + c : back' -> text def_attr (reverse front) + <++> cursor c + <++> text def_attr back' + <++> hFill def_attr ' ' 1 + [] -> text def_attr (reverse front) + <++> cursor ' ' + <++> hFill def_attr ' ' 1 + where + cursorAttr = def_attr `with_style` reverse_video + cursor c = text cursorAttr [c] diff --git a/Widgets/PrettyBorders.hs b/Widgets/PrettyBorders.hs new file mode 100644 --- /dev/null +++ b/Widgets/PrettyBorders.hs @@ -0,0 +1,42 @@ +-- | PrettyBorders.hs +-- Graphics.Vty.Widgets.Borders with simple replacing border char. + +module Widgets.PrettyBorders ( + pVBorder, + pHBorder +) where + +import Graphics.Vty +import Graphics.Vty.Widgets.All + + +-- |A horizontal or vertical border to be placed between widgets. See +-- 'pHBorder' and 'pVBorder'. +data PrettyBorder = VBorder Attr + | HBorder Attr + +instance Widget PrettyBorder where + growVertical (VBorder _) = True + growVertical (HBorder _) = False + + growHorizontal (VBorder _) = False + growHorizontal (HBorder _) = True + + primaryAttribute (VBorder a) = a + primaryAttribute (HBorder a) = a + + render s (VBorder att) = + char_fill att '│' 1 (region_height s) + render s (HBorder att) = + char_fill att '-' (region_width s) 1 + + withAttribute (VBorder _) att = VBorder att + withAttribute (HBorder _) att = HBorder att + +-- |Create a single-column vertical border. +pVBorder :: Attr -> PrettyBorder +pVBorder = VBorder + +-- |Create a single-row horizontal border. +pHBorder :: Attr -> PrettyBorder +pHBorder = HBorder diff --git a/Widgets/TextBox.hs b/Widgets/TextBox.hs new file mode 100644 --- /dev/null +++ b/Widgets/TextBox.hs @@ -0,0 +1,54 @@ +-- | TextBox.hs +-- A widget which contain mutlicolored text lines with ability of +-- scrolling. + +module Widgets.TextBox ( + TextBox(..), + TextLine +) where + +import Graphics.Vty +import Graphics.Vty.Widgets.All +import Data.List.Split + + +-- | At first goes bottom lines of text for more efficience insert. +-- +-- line3 +-- [line1, line2, line3] -> line2 +-- line1 +-- +-- TODO: scrolling, box sizes +data TextBox = TextBox [TextLine] +type TextLine = (Attr, String) + + +instance Widget TextBox where + growVertical _ = True + growHorizontal _ = True + primaryAttribute _ = def_attr + withAttribute w _ = w + + -- wrap long lines by screen width and render required part + render rgn (TextBox ls) + = vert_cat $ (map (uncurry string) ls') ++ [fill] + where + fill = char_fill def_attr ' ' w (h - (length ls')) + ls' = reverse $ take h $ concat $ map wrapLine ls + -- do text lines with fixed width + wrapLine (a, str) = + reverse $ map (\s -> (a, doLong s w)) $ wrapped str + -- wrap on newlines then wrap long lines + wrapped = concat . map (chunk w) . map processNull . sepBy "\n" + + processNull "" = replicate w ' ' + processNull s = s + w = fromIntegral (region_width rgn) + h = fromIntegral (region_height rgn) + +--- +doLong s w = + let len = length s + in if len < w + then s ++ replicate (w-len) ' ' + else s diff --git a/Widgets/Tree.hs b/Widgets/Tree.hs new file mode 100644 --- /dev/null +++ b/Widgets/Tree.hs @@ -0,0 +1,179 @@ +{-# LANGUAGE RecordWildCards #-} + +-- | Tree.hs +-- Tree widget. +module Widgets.Tree ( + Tree(..), + NodeData(..), + defaultTree, + moveUp, + moveDn, + cur +) where + +import Prelude hiding (sequence, mapM) +import Control.Monad.State.Lazy hiding (sequence, mapM) +import Data.Traversable (sequence, mapM) +import Data.Tree hiding (Tree) +import Data.Maybe +import Graphics.Vty +import Graphics.Vty.Widgets.Base + + +-- | Дерево хранится в виде Forest (NodeData a). +-- Поскольку используется готовое дерево, приходится вручную везде +-- проверять инвариант "если дочерних узлов нет, то узел считается +-- развёрнутым". +data Tree + = Tree + { selectedAttr :: Attr + , nodeAttr :: Attr + , selectedIndex :: Int + , windowStart :: Int + , treeWidth :: Maybe Int + , treeHeight :: Maybe Int + , nodes :: Forest NodeData + } + +data NodeData = NodeData {collapsed :: Bool, value :: (String, Value)} +type Value = String + +defaultTree tree + = Tree + { selectedAttr = def_attr `with_back_color` cyan `with_fore_color` blue + , nodeAttr = def_attr + , selectedIndex = 0 + , windowStart = 0 + , treeWidth = Just 30 + , treeHeight = Nothing + , nodes = tree + } + + +---------------------------------------------------------------------- +-- moves +-- TODO: first, end, pageup, pagedn + +moveUp t@(Tree {windowStart = ws, selectedIndex = sIx}) + | sIx == ws && ws == 0 = t + | sIx == ws = t { windowStart = ws-1, selectedIndex = sIx-1 } + | otherwise = t { selectedIndex = sIx-1 } + +moveDn t@(Tree {selectedIndex = sIx}) + | sIx == treeSize - 1 = t + | otherwise = t { selectedIndex = sIx+1 } + where + treeSize = length $ concatMap (flatten . filterVisible) $ nodes t + + +---------------------------------------------------------------------- +-- collapse/expand + +-- | If tree expanded then collapse it, else expand. +collapseOrExpand t + = if collapsed $ current t then expand t + else collapse t + +-- | Collapse or expand only current node. +collapse t@(Tree {..}) = t {nodes = setCollapsed True selectedIndex nodes} +expand t@(Tree {..}) = t {nodes = setCollapsed False selectedIndex nodes} + +-- FIXME: работает совсем неправильно +-- | Collapse current node or if already collapsed then collapse +-- parent. +collapse' t@(Tree {..}) = t + { selectedIndex = parentIx + , nodes = setCollapsed True parentIx nodes + } + where + -- ищем узел, который нужно свернуть. Это может быть: + -- - выбранный узел, если у него есть вложенные узлы и он сам + -- развёрнут + -- - иначе, сворачиваем родителя выбранного узла + parentIx = fst $ foldl getParent1 (0, 0) nodes + + -- для самого верхнего уровня логика немного отличается: + -- если узел свёрнут или он лист, то ничего не происходит (потому + -- как родительского узла нет) + getParent1 (p,ix) n = if ix <= selectedIndex then getParent' (ix,ix) n else (p,ix) + -- у вложенных узлов всегда есть родитель которого можно свернуть + getParent2 (p,ix) n = if ix <= selectedIndex then getParent' (p,ix) n else (p,ix) + + getParent' (p,ix) (Node n ns) + -- если выбран лист дерева или свёрнутый узел, нужно сворачивать + -- ветку на которой он висит + -- если выбран развёрнутый узел дерева, значит его самого и + -- сворачиваем + | ix == selectedIndex = if null ns || collapsed n then (p,ix+1) else (ix,ix+1) + -- до выбранного узла ещё не добрались, встретили развёрнутый, + -- запоминаем его как родительский и заходим внутрь + | (not.collapsed) n && (not.null) ns = foldl getParent2 (ix,ix+1) ns + -- встретили лист или свёрнутый узел, проходим мимо + | otherwise = (p,ix+1) + +setCollapsed value nodeIx nodes = evalState (mapM setCollapsed' nodes) 0 + where + setCollapsed' (Node n ns) = do + ix <- get + put $ ix + 1 + if ix == nodeIx + -- проверяем null ns, чтобы не было крестиков около листьев + then return $ Node (n {collapsed = value && (not.null) ns}) ns + else if collapsed n || ix > nodeIx + then return $ Node n ns + else Node n `fmap` mapM setCollapsed' ns + +{- TODO: сделать monad transformer +appendIndex nodes = evalState (mapM (mapNode index) nodes) 0 + where + index = getIndex >>= \ix -> put (Index $ ix+1) >> return ix + noIndex = return $ Index (-1) + + mapNode indexProvider (Node n ns) = do + ix <- indexProvider + ns' <- mapM (mapNode $ if collapsed n then noIndex else index) ns + return $ Node (ix,n) ns' +-} + + +---------------------------------------------------------------------- +-- rendering + +instance Widget Tree where + growHorizontal t = isNothing (treeWidth t) + growVertical t = isNothing (treeHeight t) + primaryAttribute _ = def_attr + withAttribute w _ = w + + render rgn t@(Tree {..}) + = vert_cat + $ map (renderNode width nodeAttr) a + ++ [renderNode width selectedAttr n] + ++ map (renderNode width nodeAttr) b + where + width = maybe (fromIntegral $ region_width rgn) id treeWidth + height = maybe (fromIntegral $ region_height rgn) id treeHeight + Tree {windowStart = start} = resize width height t + (a, n:b) = splitAt (selectedIndex - start) $ window start height t + +renderNode width attr (depth, n) = string attr $ take' width ' ' $ fst $ value n + +resize _ h t@(Tree {windowStart = ws, selectedIndex = sIx}) + -- current node is out of view => scroll up until it is visible + | sIx > ws + h - 1 = t { windowStart = sIx - h + 1 } + -- we have free space after last node => scroll down to fill it + | wl < h = t { windowStart = max 0 $ ws - (h - wl) } + | otherwise = t + where + wl = length $ window ws h t + + +--- +cur = snd . value . current +current t = (concatMap flatten $ map filterVisible $ nodes t) !! selectedIndex t +window start sz = take sz . drop start . concatMap (flatten . appendDepths 0 . filterVisible) . nodes +appendDepths d (Node n ns) = Node (d,n) $ map (appendDepths (d+1)) ns +filterVisible (Node n ns) = Node n $ if collapsed n then [] else map filterVisible ns +take' n add lst = if length lst < n + then lst ++ replicate (n - length lst) add + else take n lst diff --git a/debug.sh b/debug.sh new file mode 100644 --- /dev/null +++ b/debug.sh @@ -0,0 +1,3 @@ +#!/bin/sh + +runghc Main.hs $* diff --git a/matsuri.cabal b/matsuri.cabal new file mode 100644 --- /dev/null +++ b/matsuri.cabal @@ -0,0 +1,27 @@ +Name: matsuri +Version: 0.0.1 +Category: Network +License: GPL +License-File: LICENSE +Author: Kagami , + Grigory Holomiev , + Maxim Taldykin +Maintainer: newanon@yandex.ru +Homepage: http://kagami.touhou.ru/projects/show/matsuri +Build-Type: Simple +Cabal-Version: >=1.2 +Description: ncurses XMPP client. Read README file before use. + +Data-Files: README, matsurirc.example +Extra-Source-Files: debug.sh + +Executable matsuri + Main-Is: Main.hs + + Other-Modules: Buffers, Config, Help, Jabber, UI, Utils, + Widgets.EditBox, Widgets.PrettyBorders, + Widgets.TextBox, Widgets.Tree + + Build-Depends: base >= 4 && < 5, vty >= 4, vty-ui >= 0.2, + containers, mtl, network, split, directory, + ConfigFile, XMPP==0.0.4, time, old-locale diff --git a/matsurirc.example b/matsurirc.example new file mode 100644 --- /dev/null +++ b/matsurirc.example @@ -0,0 +1,9 @@ +[main] +version = 0.0.1 + +[account_test] +username = test_username +server = jabber.ru +password = pass +resource = matsuri +nick = test_nick