{-# LANGUAGE GeneralizedNewtypeDeriving, MultiParamTypeClasses, FlexibleInstances, FlexibleContexts, FunctionalDependencies, UndecidableInstances #-} module HPage.GUI.FreeTextWindow ( gui ) where import Prelude hiding (catch) import Control.Exception import Control.Concurrent.Process import Control.Concurrent.MVar import System.FilePath import System.Directory import System.IO.Error hiding (try, catch) import Data.List import Data.Bits import Data.Char (toLower) import Data.Version import Distribution.Package import Control.Monad.Error import Control.Monad.Loops import Graphics.UI.WX import Graphics.UI.WXCore hiding (kill, Process) import qualified HPage.Control as HP import qualified HPage.Server as HPS import HPage.GUI.Dialogs import HPage.GUI.IDs import HPage.GUI.Constants import HPage.Utils.Log import Paths_hpage -- cabal locations of data files imageFile :: FilePath -> IO FilePath imageFile fp = do path <- getDataFileName $ "res/images/" ++ fp real <- doesFileExist path if real then return path else do errorIO ("file not found", path) fail (path ++ " does not exist") helpFile :: IO FilePath helpFile = getDataFileName "res/help/helpPage.hs" data GUIBottom = GUIBtm { bottomDesc :: String, bottomSource :: String } data GUIResults = GUIRes { resButton :: Button (), resLabel :: StaticText (), resValue :: TextCtrl (), res4Dots :: StaticText (), resType :: TextCtrl (), resErrors :: Var [GUIBottom] } data GUIContext = GUICtx { guiWin :: Frame (), guiPages :: SingleListBox (), guiModules :: (Var Int, ListCtrl ()), guiCode :: TextCtrl (), guiResults :: GUIResults, guiStatus :: StatusField, guiTimer :: TimerEx (), guiCharTimer :: TimerEx (), guiSearch :: FindReplaceData (), guiChrVar :: MVar (Maybe String), guiChrFiller :: MVar (Handle String), guiValFiller :: MVar (Handle (String, IO ()))} gui :: IO () gui = do -- Server context model <- HPS.start win <- frame [text := "\955Page", visible := False] imageFile "icon/hpage.tif" >>= topLevelWindowSetIconFromFile win set win [on closing := HPS.stop model >> propagateEvent] -- Containers ntbkL <- notebook win [] pnlPs <- panel ntbkL [] pnlMs <- panel ntbkL [] -- Text page... -- txtCode <- styledTextCtrl win [] txtCode <- textCtrl win [font := fontFixed, text := ""] -- Document Selector lstPages <- singleListBox pnlPs [style := wxLB_NEEDED_SB, outerSize := sz 400 600] -- Modules Lists imageFiles <- mapM imageFile ["m_imported.ico", "m_interpreted.ico", "m_compiled.ico", "m_package.ico"] imagePaths <- mapM getAbsoluteFilePath imageFiles images <- imageListFromFiles (sz 16 16) imagePaths varModsSel <- varCreate $ -1 lstModules <- listCtrlEx pnlMs (wxLC_REPORT + wxLC_ALIGN_LEFT + wxLC_NO_HEADER + wxLC_SINGLE_SEL) [columns := [("Module", AlignLeft, 200), ("Origin", AlignLeft, 1)]] listCtrlSetImageList lstModules images wxIMAGE_LIST_SMALL -- Results panel pnlRes <- panel win [] txtValue <- textEntry pnlRes [style := wxTE_READONLY] varErrors <- varCreate [] txtType <- textEntry pnlRes [style := wxTE_READONLY] btnInterpret <- button pnlRes [text := "Interpret"] lblInterpret <- staticText pnlRes [text := "Value:"] lbl4Dots <- staticText pnlRes [text := " :: "] set pnlRes [layout := fill $ row 5 [widget btnInterpret, centre $ widget lblInterpret, fill $ widget txtValue, centre $ widget lbl4Dots, fill $ widget txtType]] -- Status bar... status <- statusField [text := "hello... this is \955Page! type in your instructions :)"] set win [statusBar := [status]] -- Timers ... refreshTimer <- timer win [] charTimer <- timer win [] -- Search ... search <- findReplaceDataCreate wxFR_DOWN chv <- newEmptyMVar chfv <- newEmptyMVar vfv <- newEmptyMVar let guiRes = GUIRes btnInterpret lblInterpret txtValue lbl4Dots txtType varErrors let guiCtx = GUICtx win lstPages (varModsSel, lstModules) txtCode guiRes status refreshTimer charTimer search chv chfv vfv let onCmd name acc = traceIO ("onCmd", name) >> acc model guiCtx -- Helper processes chf <- spawn $ charFiller guiCtx putMVar chfv chf vf <- spawn $ valueFiller guiCtx putMVar vfv vf -- Events timerOnCommand refreshTimer $ refreshExpr model guiCtx timerOnCommand charTimer $ do wasEmpty <- tryPutMVar chv Nothing if wasEmpty then do newchf <- spawn $ charFiller guiCtx swapMVar chfv newchf >>= kill else return () set btnInterpret [on command := onCmd "interpret" interpret] set lstPages [on select := onCmd "pageChange" pageChange] set txtCode [on keyboard := onCmd "key" . keyEvent, on mouse := \e -> case e of MouseLeftUp _ _ -> onCmd "mouseEvent" restartTimer >> propagateEvent MouseLeftDClick _ _ -> onCmd "mouseEvent" restartTimer >> propagateEvent MouseRightDown _ _ -> onCmd "textContextMenu" textContextMenu _ -> propagateEvent] set txtValue [on mouse := \e -> case e of MouseRightDown _ _ -> onCmd "valueContextMenu" valueContextMenu _ -> propagateEvent] set txtType [on mouse := \e -> case e of MouseRightDown _ _ -> onCmd "typeContextMenu" typeContextMenu _ -> propagateEvent] set lstModules [on listEvent := \e -> case e of ListItemSelected idx -> varSet varModsSel idx ListItemRightClick idx -> varSet varModsSel idx >> onCmd "moduleContextMenu" moduleContextMenu _ -> propagateEvent] -- Menu bar... mnuPage <- menuPane [text := "Page"] menuAppend mnuPage wxId_NEW "&New\tCtrl-n" "New Page" False menuAppend mnuPage wxId_CLOSE "&Close\tCtrl-w" "Close Page" False menuAppend mnuPage wxId_CLOSE_ALL "&Close All\tCtrl-Shift-w" "Close All Pages" False menuAppendSeparator mnuPage menuAppend mnuPage wxId_OPEN "&Open...\tCtrl-o" "Open Page" False menuAppend mnuPage wxId_SAVE "&Save\tCtrl-s" "Save Page" False menuAppend mnuPage wxId_SAVEAS "&Save as...\tCtrl-Shift-s" "Save Page as" False menuAppendSeparator mnuPage menuQuit mnuPage [on command := wxcAppExit] mnuEdit <- menuPane [text := "Edit"] menuAppend mnuEdit wxId_UNDO "&Undo\tCtrl-z" "Undo" False menuAppend mnuEdit wxId_REDO "&Redo\tCtrl-Shift-z" "Redo" False menuAppendSeparator mnuEdit menuAppend mnuEdit wxId_CUT "C&ut\tCtrl-x" "Cut" False menuAppend mnuEdit wxId_COPY "&Copy\tCtrl-c" "Copy" False menuAppend mnuEdit wxId_PASTE "&Paste\tCtrl-v" "Paste" False menuAppendSeparator mnuEdit menuAppend mnuEdit wxId_FIND "&Find...\tCtrl-f" "Find" False menuAppend mnuEdit wxId_FORWARD "Find &Next\tCtrl-g" "Find Next" False menuAppend mnuEdit wxId_BACKWARD "Find &Previous\tCtrl-Shift-g" "Find Previous" False menuAppend mnuEdit wxId_REPLACE "&Replace...\tCtrl-Shift-r" "Replace" False menuAppendSeparator mnuEdit menuAppend mnuEdit wxId_PREFERENCES "&Preferences...\tCtrl-," "Preferences" False mnuHask <- menuPane [text := "Haskell"] menuAppend mnuHask wxId_HASK_LOAD_PKG "Load &package...\tCtrl-Alt-l" "Load Cabal Package" False menuAppendSeparator mnuHask menuAppend mnuHask wxId_HASK_LOAD "&Load modules...\tCtrl-l" "Load Modules" False menuAppend mnuHask wxId_HASK_LOADNAME "Load modules by &name...\tCtrl-Shift-l" "Load Modules by Name" False menuAppend mnuHask wxId_HASK_ADD "Import modules...\tCtrl-Shift-i" "Import Packaged Modules by Name" False menuAppend mnuHask wxId_HASK_RELOAD "&Reload\tCtrl-r" "Reload Modules" False menuAppendSeparator mnuHask menuAppend mnuHask wxId_HASK_INTERPRET "&Interpret\tCtrl-i" "Interpret the Current Expression" False menuAppend mnuHask wxId_HASK_NAVIGATE "Search on Ha&yoo!\tCtrl-y" "Search the Current Selection on Hayoo!" False mnuHelp <- menuHelp [] menuAppend mnuHelp wxId_HELP "&Help page\tCtrl-h" "Open the Help Page" False menuAbout mnuHelp [on command := infoDialog win "About \955Page" "Author: Fernando Brujo Benavides\nWebsite: http://haskell.hpage.com"] set win [menuBar := [mnuPage, mnuEdit, mnuHask, mnuHelp]] evtHandlerOnMenuCommand win wxId_NEW $ onCmd "runHP' addPage" $ runHP' HP.addPage evtHandlerOnMenuCommand win wxId_CLOSE $ onCmd "runHP' closePage" $ runHP' HP.closePage evtHandlerOnMenuCommand win wxId_CLOSE_ALL $ onCmd "runHP' closeAllPages" $ runHP' HP.closeAllPages evtHandlerOnMenuCommand win wxId_OPEN $ onCmd "openPage" openPage evtHandlerOnMenuCommand win wxId_SAVE $ onCmd "savePage" savePage evtHandlerOnMenuCommand win wxId_SAVEAS $ onCmd "savePageAs" savePageAs evtHandlerOnMenuCommand win wxId_UNDO $ onCmd "runHP' undo" $ runHP' HP.undo evtHandlerOnMenuCommand win wxId_REDO $ onCmd "runHP' redo" $ runHP' HP.redo evtHandlerOnMenuCommand win wxId_CUT $ onCmd "cut" cut evtHandlerOnMenuCommand win wxId_COPY $ onCmd "copy" copy evtHandlerOnMenuCommand win wxId_PASTE $ onCmd "paste" paste evtHandlerOnMenuCommand win wxId_FIND $ onCmd "justFind" justFind evtHandlerOnMenuCommand win wxId_FORWARD $ onCmd "findNext" justFindNext evtHandlerOnMenuCommand win wxId_BACKWARD $ onCmd "findPrev" justFindPrev evtHandlerOnMenuCommand win wxId_REPLACE $ onCmd "findReplace" findReplace evtHandlerOnMenuCommand win wxId_HASK_LOAD_PKG $ onCmd "loadPackage" loadPackage evtHandlerOnMenuCommand win wxId_HASK_LOAD $ onCmd "loadModules" loadModules evtHandlerOnMenuCommand win wxId_HASK_ADD $ onCmd "importModules" importModules evtHandlerOnMenuCommand win wxId_HASK_LOADNAME $ onCmd "loadModulesByName" loadModulesByName evtHandlerOnMenuCommand win wxId_HASK_LOAD_FAST $ onCmd "loadModulesByNameFast" loadModulesByNameFast evtHandlerOnMenuCommand win wxId_HASK_RELOAD $ onCmd "reloadModules" reloadModules evtHandlerOnMenuCommand win wxId_PREFERENCES $ onCmd "preferences" configure evtHandlerOnMenuCommand win wxId_HASK_INTERPRET $ onCmd "interpret" interpret evtHandlerOnMenuCommand win wxId_HASK_NAVIGATE $ onCmd "hayoo" hayoo evtHandlerOnMenuCommand win wxId_HASK_COPY $ onCmd "copyResult" copyResult evtHandlerOnMenuCommand win wxId_HASK_COPY_TYPE $ onCmd "copyType" copyType evtHandlerOnMenuCommand win wxId_HASK_EXPLAIN $ onCmd "explain" explain evtHandlerOnMenuCommand win wxId_HELP $ onCmd "help" openHelpPage -- Tool bar... tbMain <- toolBarEx win True True [] mitLoadPkg <- menuFindItem mnuHask wxId_HASK_LOAD_PKG mitNew <- menuFindItem mnuPage wxId_NEW mitOpen <- menuFindItem mnuPage wxId_OPEN mitSave <- menuFindItem mnuPage wxId_SAVE mitCut <- menuFindItem mnuEdit wxId_CUT mitCopy <- menuFindItem mnuEdit wxId_COPY mitPaste <- menuFindItem mnuEdit wxId_PASTE mitReload <- menuFindItem mnuHask wxId_HASK_RELOAD loadPath <- imageFile "load.png" newPath <- imageFile "new.png" openPath <- imageFile "open.png" savePath <- imageFile "save.png" cutPath <- imageFile "cut.png" copyPath <- imageFile "copy.png" pastePath <- imageFile "paste.png" reloadPath <- imageFile "reload.png" toolMenu tbMain mitLoadPkg "Load Package" loadPath [tooltip := "Load Cabal Package"] toolBarAddSeparator tbMain toolMenu tbMain mitNew "New" newPath [tooltip := "New Page"] toolMenu tbMain mitOpen "Open" openPath [tooltip := "Open Page"] toolMenu tbMain mitSave "Save" savePath [tooltip := "Save Page"] toolBarAddSeparator tbMain toolMenu tbMain mitCut "Cut" cutPath [tooltip := "Cut"] toolMenu tbMain mitCopy "Copy" copyPath [tooltip := "Copy"] toolMenu tbMain mitPaste "Paste" pastePath [tooltip := "Paste"] toolBarAddSeparator tbMain toolMenu tbMain mitReload "Reload" reloadPath [tooltip := "Reload Modules"] toolBarSetToolBitmapSize tbMain $ sz 32 32 -- Layout settings let pagesTabL = tab "Pages" $ container pnlPs $ fill $ margin 5 $ widget lstPages modsTabL = tab "Modules" $ container pnlMs $ fill $ margin 5 $ widget lstModules leftL = tabs ntbkL [modsTabL, pagesTabL] resultsL = hfill $ boxed "Expression" $ fill $ widget pnlRes rightL = minsize (sz 485 100) $ fill $ widget txtCode set win [layout := column 5 [fill $ row 10 [leftL, rightL], resultsL], clientSize := sz 800 600] -- test the server... runTxtHPSelection "1" model HP.interpret -- ...and RUN! refreshPage model guiCtx onCmd "start" openHelpPage set win [visible := True] set txtCode [font := fontFixed] -- again just to be sure focusOn txtCode -- PROCESSES ------------------------------------------------------------------- charFiller :: GUIContext -> Process String () charFiller GUICtx{guiResults = GUIRes{resValue = txtValue, resErrors= varErrors}, guiChrVar = chv} = forever $ do t <- recv liftIO $ do txt <- catch (eval t) $ \(ErrorCall desc) -> varUpdate varErrors (++ [GUIBtm desc t]) >> return bottomChar tryPutMVar chv $ Just txt where eval t = t `seq` length t `seq` return t valueFiller :: GUIContext -> Process (String, IO ()) () valueFiller guiCtx@GUICtx{guiResults = GUIRes{resButton = btnInterpret, resErrors = varErrors, resValue = txtValue}} = forever $ do liftDebugIO "Waiting for a new value to interpret" (val, poc) <- recv liftDebugIO "Value received in valueFiller" liftDebugIO "Trying to evaluate the whole value first..." liftIO $ do set txtValue [text := ""] res <- valueFill guiCtx val if res == bottomChar then do debugIO "didn't work... going char by char..." varSet varErrors [] valueFiller' guiCtx val else do debugIO "It worked!!" textCtrlAppendText txtValue res set btnInterpret [on command := poc, text := "Interpret"] set txtValue [enabled := True, bgcolor := white] valueFiller' :: GUIContext -> String -> IO () valueFiller' guiCtx@GUICtx{guiResults = GUIRes{resValue = txtValue, resErrors = varErrors}} val = do h <- try (case val of [] -> return [] (c:_) -> return [c]) case h of Left (ErrorCall desc) -> do varUpdate varErrors (++ [GUIBtm desc val]) textCtrlAppendText txtValue bottomString Right [] -> return () Right t -> do valueFill guiCtx t >>= textCtrlAppendText txtValue valueFiller' guiCtx $ tail val valueFill :: GUIContext -> String -> IO String valueFill GUICtx{guiResults = GUIRes{resErrors = varErrors}, guiCharTimer = charTimer, guiChrVar = chv, guiChrFiller = chfv} val = do debugIO "valueFill starting..." tryTakeMVar chv --NOTE: empty the var debugIO "timer starting..." timerStart charTimer charTimeout True debugIO "sending msg to charFiller..." readMVar chfv >>= flip sendTo val debugIO "waiting for value toAdd..." toAdd <- readMVar chv --NOTE: Not using "take" to be sure that noone touches it debugIO ("Ready to add...", toAdd) case toAdd of Just txt -> do isR <- timerIsRuning charTimer if isR then timerStop charTimer else return () debugIO $ "returning " ++ txt return txt Nothing -> --NOTE: Means "Timed Out" do varUpdate varErrors (++ [GUIBtm "Timed Out" val]) debugIO $ "timed out" return bottomChar -- EVENT HANDLERS -------------------------------------------------------------- keyEvent :: EventKey -> HPS.ServerHandle -> GUIContext -> IO () keyEvent eventKey model guiCtx@GUICtx{guiCode = txtCode} = do case keyKey eventKey of KeyTab -> if isNoneDown (keyModifiers eventKey) then textCtrlWriteText txtCode "\t" >> restartTimer model guiCtx else return () _ -> restartTimer model guiCtx propagateEvent refreshPage, savePageAs, savePage, openPage, pageChange, copy, copyResult, copyType, cut, paste, justFind, justFindNext, justFindPrev, findReplace, textContextMenu, moduleContextMenu, valueContextMenu, restartTimer, interpret, hayoo, explain, loadPackage, loadModules, importModules, loadModulesByName, loadModulesByNameFast, reloadModules, configure, openHelpPage :: HPS.ServerHandle -> GUIContext -> IO () moduleContextMenu model guiCtx@GUICtx{guiWin = win, guiModules = (varModsSel, lstModules)} = do pointWithinWindow <- windowGetMousePosition win i <- varGet varModsSel contextMenu <- menuPane [] case i of (-1) -> do return () i -> do itm <- get lstModules $ item i case itm of [_, "Package"] -> menuAppend contextMenu wxId_HASK_LOAD_FAST "&Load" "Load Module" False [modname, _] -> appendBrowseMenu contextMenu modname other -> menuAppend contextMenu idAny (show other) "Other" False propagateEvent menuPopup contextMenu pointWithinWindow win objectDelete contextMenu where appendBrowseMenu contextMenu mn = do browseMenu <- menuPane [] hpsRes <- tryIn model $ HP.getModuleExports mn case hpsRes of Left err -> menuAppend browseMenu idAny err "Error" False Right mes -> flip mapM_ mes $ createMenuItem browseMenu menuItem contextMenu [text := "To Clipboard", on command := addToClipboard mn] menuItem contextMenu [text := "Search on Hayoo!", on command := hayooDialog win mn] menuAppendSeparator contextMenu menuAppendSub contextMenu wxId_HASK_BROWSE "&Browse" browseMenu "" addToClipboard txt = do tdo <- textDataObjectCreate txt cb <- clipboardCreate opened <- clipboardOpen cb if opened then do r <- clipboardSetData cb tdo if r then return () else errorDialog win "Error" "Clipboard operation failed" clipboardClose cb else errorDialog win "Error" "Clipboard not ready" createMenuItem m fn@HP.MEFun{HP.funName = fname} = do itemMenu <- createBasicMenuItem fname menuAppendSub m wxId_HASK_MENUELEM (show fn) itemMenu "" createMenuItem m HP.MEClass{HP.clsName = cn, HP.clsFuns = []} = do itemMenu <- createBasicMenuItem cn menuAppendSub m wxId_HASK_MENUELEM ("class " ++ cn) itemMenu "" createMenuItem m HP.MEClass{HP.clsName = cn, HP.clsFuns = cfs} = do subMenu <- createBasicMenuItem cn menuAppendSeparator subMenu flip mapM_ cfs $ createMenuItem subMenu menuAppendSub m wxId_HASK_MENUELEM ("class " ++ cn) subMenu "" createMenuItem m HP.MEData{HP.datName = dn, HP.datCtors = []} = do itemMenu <- createBasicMenuItem dn menuAppendSub m wxId_HASK_MENUELEM ("data " ++ dn) itemMenu "" createMenuItem m HP.MEData{HP.datName = dn, HP.datCtors = dcs} = do subMenu <- createBasicMenuItem dn menuAppendSeparator subMenu flip mapM_ dcs $ createMenuItem subMenu menuAppendSub m wxId_HASK_MENUELEM ("data " ++ dn) subMenu "" createBasicMenuItem name = do itemMenu <- menuPane [] menuItem itemMenu [text := "To Clipboard", on command := addToClipboard name] menuItem itemMenu [text := "Search on Hayoo!", on command := hayooDialog win name] return itemMenu textContextMenu model guiCtx@GUICtx{guiWin = win, guiCode = txtCode} = do contextMenu <- menuPane [] sel <- textCtrlGetStringSelection txtCode case sel of "" -> return () _ -> do menuAppend contextMenu wxId_CUT "C&ut\tCtrl-x" "Cut" False menuAppend contextMenu wxId_COPY "&Copy\tCtrl-c" "Copy" False menuAppend contextMenu wxId_PASTE "&Paste\tCtrl-v" "Paste" False menuAppendSeparator contextMenu menuAppend contextMenu wxId_HASK_NAVIGATE "Search on Ha&yoo!\tCtrl-y" "Search the Current Selection on Hayoo!" False menuAppend contextMenu wxId_HASK_INTERPRET "&Interpret\tCtrl-i" "Interpret the Current Expression" False propagateEvent pointWithinWindow <- windowGetMousePosition win menuPopup contextMenu pointWithinWindow win objectDelete contextMenu valueContextMenu model guiCtx@GUICtx{guiWin = win, guiResults = GUIRes{resValue = txtValue}} = do contextMenu <- menuPane [] sel <- textCtrlGetStringSelection txtValue case sel of "" -> return () _ -> menuAppend contextMenu wxId_HASK_COPY "Copy" "Copy" False if sel == bottomChar || sel == bottomString then menuAppend contextMenu wxId_HASK_EXPLAIN "Explain" "Explain" False else return () propagateEvent pointWithinWindow <- windowGetMousePosition win menuPopup contextMenu pointWithinWindow win objectDelete contextMenu typeContextMenu model guiCtx@GUICtx{guiWin = win, guiResults = GUIRes{resType = txtType}} = do contextMenu <- menuPane [] sel <- textCtrlGetStringSelection txtType case sel of "" -> do propagateEvent objectDelete contextMenu _ -> do menuAppend contextMenu wxId_HASK_COPY_TYPE "Copy" "Copy" False propagateEvent pointWithinWindow <- windowGetMousePosition win menuPopup contextMenu pointWithinWindow win objectDelete contextMenu pageChange model guiCtx@GUICtx{guiPages = lstPages} = do i <- get lstPages selection case i of (-1) -> return () _ -> runHP' (HP.setPageIndex i) model guiCtx openPage model guiCtx@GUICtx{guiWin = win, guiStatus = status} = do fileNames <- filesOpenDialog win True True "Open file..." [("Haskells",["*.hs"]), ("Any file",["*.*"])] "" "" case fileNames of [] -> return () fs -> do set status [text := "opening..."] flip mapM_ fs $ \f -> runHP' (HP.openPage f) model guiCtx savePageAs model guiCtx@GUICtx{guiWin = win, guiStatus = status} = do refreshExpr model guiCtx fileName <- fileSaveDialog win True True "Save file..." [("Haskells",["*.hs"]), ("Any file",["*.*"])] "" "" case fileName of Nothing -> return () Just f -> do set status [text := "saving..."] runHP' (HP.savePageAs f) model guiCtx savePage model guiCtx@GUICtx{guiWin = win} = do refreshExpr model guiCtx maybePath <- tryIn' model HP.getPagePath case maybePath of Left err -> warningDialog win "Error" err Right Nothing -> savePageAs model guiCtx Right _ -> do set (guiStatus guiCtx) [text := "saving..."] runHP' HP.savePage model guiCtx copy _model GUICtx{guiCode = txtCode} = textCtrlCopy txtCode copyResult _model GUICtx{guiResults = GUIRes{resValue = txtValue}} = textCtrlCopy txtValue copyType _model GUICtx{guiResults = GUIRes{resType = txtType}} = textCtrlCopy txtType cut model guiCtx@GUICtx{guiCode = txtCode} = textCtrlCut txtCode >> refreshExpr model guiCtx paste model guiCtx@GUICtx{guiCode = txtCode} = textCtrlPaste txtCode >> refreshExpr model guiCtx justFind model guiCtx = openFindDialog model guiCtx "Find..." dialogDefaultStyle justFindNext model guiCtx@GUICtx{guiSearch = search} = do curFlags <- findReplaceDataGetFlags search findReplaceDataSetFlags search $ curFlags .|. wxFR_DOWN findNextButton model guiCtx justFindPrev model guiCtx@GUICtx{guiSearch = search} = do curFlags <- findReplaceDataGetFlags search findReplaceDataSetFlags search $ curFlags .&. complement wxFR_DOWN findNextButton model guiCtx findReplace model guiCtx = openFindDialog model guiCtx "Find and Replace..." $ dialogDefaultStyle .|. wxFR_REPLACEDIALOG reloadModules = runHP HP.reloadModules loadPackage model guiCtx@GUICtx{guiWin = win} = do distExists <- doesDirectoryExist "dist" let startDir = if distExists then "dist" else "" res <- fileOpenDialog win True True "Select the setup-config file for your project..." [("setup-config",["setup-config"])] startDir "setup-config" case res of Nothing -> return () Just setupConfig -> do loadres <- tryIn' model $ do lr <- HP.loadPackage setupConfig HP.addPage return lr case loadres of Left err -> warningDialog win "Error" err Right (Left err) -> warningDialog win "Error" err Right (Right pkg) -> do absPath <- canonicalizePath setupConfig let dir = joinPath . reverse . drop 2 . reverse $ splitDirectories absPath setCurrentDirectory dir frameSetTitle win $ "\955Page - " ++ prettyShow pkg refreshPage model guiCtx where prettyShow PackageIdentifier{pkgName = PackageName pkgname, pkgVersion = pkgvsn} = pkgname ++ "-" ++ showVersion pkgvsn loadModules model guiCtx@GUICtx{guiWin = win, guiStatus = status} = do fileNames <- filesOpenDialog win True True "Load Module..." [("Haskell Modules",["*.hs"])] "" "" case fileNames of [] -> return () fs -> do set status [text := "loading..."] runHP (HP.loadModules fs) model guiCtx loadModulesByName model guiCtx@GUICtx{guiWin = win, guiStatus = status} = do moduleNames <- textDialog win "Enter the module names, separated by spaces" "Load Modules..." "" case moduleNames of "" -> return () mns -> do set status [text := "loading..."] runHP (HP.loadModules $ words mns) model guiCtx loadModulesByNameFast model guiCtx@GUICtx{guiWin = win, guiModules = (varModsSel, lstModules), guiStatus = status} = do i <- varGet varModsSel case i of (-1) -> return () i -> do mnText <- listCtrlGetItemText lstModules i let mns = [mnText] set status [text := "loading..."] runHP (HP.loadModules mns) model guiCtx importModules model guiCtx@GUICtx{guiWin = win, guiStatus = status} = do moduleNames <- textDialog win "Enter the module names, separated by spaces" "Import Packaged Modules..." "" case moduleNames of "" -> return () mns -> do set status [text := "loading..."] runHP (HP.importModules $ words mns) model guiCtx configure model guiCtx@GUICtx{guiWin = win, guiStatus = status} = do hpsRes <- tryIn model $ do les <- HP.getLanguageExtensions sds <- HP.getSourceDirs gos <- HP.getGhcOpts case les of Left e -> return $ Left e Right l -> return $ Right (l, sds, gos) case hpsRes of Left err -> warningDialog win "Error" err Right (les, sds, gos) -> do res <- preferencesDialog win "Preferences" $ Prefs les sds gos case res of Nothing -> return () Just newps -> do set status [text := "setting..."] runHP (do HP.setLanguageExtensions $ languageExtensions newps HP.setSourceDirs $ sourceDirs newps case ghcOptions newps of "" -> return $ Right () newopts -> HP.setGhcOpts newopts ) model guiCtx openHelpPage model guiCtx@GUICtx{guiCode = txtCode} = do f <- helpFile txt <- readFile f set txtCode [font := fontFixed, text := txt] -- Refresh the current expression box refreshExpr model guiCtx refreshPage model guiCtx@GUICtx{guiWin = win, guiPages = lstPages, guiModules = (varModsSel, lstModules), guiCode = txtCode, guiStatus = status} = do res <- tryIn' model $ do pc <- HP.getPageCount pages <- mapM HP.getPageNthDesc [0..pc-1] ind <- HP.getPageIndex txt <- HP.getPageText lmsRes <- HP.getLoadedModules ims <- HP.getImportedModules pms <- HP.getPackageModules let lms = case lmsRes of Left _ -> [] Right x -> x return (pms, ims, lms, pages, ind, txt) case res of Left err -> warningDialog win "Error" err Right (pms, ims, ms, ps, i, t) -> do -- Refresh the pages list itemsDelete lstPages (flip mapM) ps $ \pd -> let prefix = if HP.pIsModified pd then "*" else "" name = case HP.pPath pd of Nothing -> "new page" Just fn -> takeFileName $ dropExtension fn in itemAppend lstPages $ prefix ++ name set lstPages [selection := i] -- Refresh the modules lists --NOTE: we know 0 == "imported" / 1 == "interpreted" / 2 == "compiled" / 3 == "package" images --TODO: move that to some kind of constants or so let ims' = map (\m -> (0, [m, "Imported"])) ims ms' = map (\m -> if HP.modInterpreted m then (1, [HP.modName m, "Interpred"]) else (2, [HP.modName m, "Compiled"])) ms pms' = map (\m -> (3, [m, "Package"])) $ flip filter pms $ \pm -> all (\xm -> HP.modName xm /= pm) ms allms = zip [0..] (ims' ++ ms' ++ pms') itemsDelete lstModules (flip mapM) allms $ \(idx, (img, m@(mn:_))) -> listCtrlInsertItemWithLabel lstModules idx mn img >> set lstModules [item idx := m] varSet varModsSel $ -1 -- Refresh the current text set txtCode [text := t, font := fontFixed] -- Clean the status bar set status [text := ""] -- Refresh the current expression box refreshExpr model guiCtx runHP' :: HP.HPage () -> HPS.ServerHandle -> GUIContext -> IO () runHP' a = runHP $ a >>= return . Right runHP :: HP.HPage (Either HP.InterpreterError ()) -> HPS.ServerHandle -> GUIContext -> IO () runHP hpacc model guiCtx@GUICtx{guiWin = win} = do res <- tryIn model hpacc case res of Left err -> warningDialog win "Error" err Right () -> refreshPage model guiCtx explain model guiCtx@GUICtx{guiWin = win, guiResults = GUIRes{resValue = txtValue, resErrors = varErrors}} = do sel <- textCtrlGetStringSelection txtValue if sel == bottomChar || sel == bottomString then do txt <- get txtValue text ip <- textCtrlGetInsertionPoint txtValue errs <- varGet varErrors let prevTxt = take ip txt isBottom c = [c] == bottomChar || [c] == bottomString errNo = length $ filter isBottom prevTxt err = if length errs > errNo then bottomDesc $ errs !! errNo else "Unknown" if sel == bottomChar then errorDialog win "Bottom Char" err else errorDialog win "Bottom String" err else return () hayoo model guiCtx@GUICtx{guiCode = txtCode, guiWin = win} = textCtrlGetStringSelection txtCode >>= hayooDialog win interpret model guiCtx@GUICtx{guiResults = GUIRes{resLabel = lblInterpret, resButton = btnInterpret, resValue = txtValue, res4Dots = lbl4Dots, resType = txtType}, guiCode = txtCode, guiCharTimer = charTimer, guiWin = win, guiChrVar = chv, guiValFiller = vfv, guiChrFiller = chfv} = do sel <- textCtrlGetStringSelection txtCode let runner = case sel of "" -> tryIn sl -> runTxtHPSelection sl refreshExpr model guiCtx liftTraceIO "running..." set txtValue [enabled := False, bgcolor := lightgrey] res <- runner model HP.interpret liftTraceIO "ready" case res of Left err -> warningDialog win "Error" err Right interp -> if HP.isIntType interp then do set txtValue [enabled := True, bgcolor := white, text := HP.intKind interp] set lbl4Dots [visible := False] set txtType [visible := False] set lblInterpret [text := "Kind:"] else do set lbl4Dots [visible := True] set txtType [visible := True, text := HP.intType interp] set lblInterpret [text := "Value:"] -- now we fill the textbox -- poc <- liftIO $ get btnInterpret $ on command let revert = do debugIO "Cancelling..." tryTakeMVar chv --NOTE: empty the var debugIO "Killing the char filler..." newchf <- spawn $ charFiller guiCtx swapMVar chfv newchf >>= kill debugIO "Killing the value filler..." newvf <- spawn $ valueFiller guiCtx swapMVar vfv newvf >>= kill debugIO "Ready" set txtValue [enabled := True, bgcolor := white] set btnInterpret [on command := poc, text := "Interpret"] in liftIO $ set btnInterpret [text := "Cancel", on command := revert] liftDebugIO "sending the value to the Value Filler..." readMVar vfv >>= flip sendTo ((HP.intValue interp), poc) runTxtHPSelection :: String -> HPS.ServerHandle -> HP.HPage (Either HP.InterpreterError HP.Interpretation) -> IO (Either ErrorString HP.Interpretation) runTxtHPSelection s model hpacc = do piRes <- tryIn' model HP.getPageIndex added <- tryIn' model $ HP.addPage case added of Left err -> return $ Left err Right () -> do let cpi = case piRes of Left err -> 0 Right cp -> cp newacc = HP.setPageText s (length s) >> hpacc res <- tryIn model newacc tryIn' model $ HP.closePage >> HP.setPageIndex cpi return res refreshExpr :: HPS.ServerHandle -> GUIContext -> IO () refreshExpr model guiCtx@GUICtx{guiCode = txtCode, guiWin = win, guiTimer = refreshTimer} = do set txtCode [font := fontFixed] -- Just to be sure txt <- get txtCode text ip <- textCtrlGetInsertionPoint txtCode res <- tryIn' model $ HP.setPageText txt ip case res of Left err -> warningDialog win "Error" err Right _ -> debugIO "refreshExpr done" timerStop refreshTimer -- TIMER HANDLERS -------------------------------------------------------------- restartTimer model guiCtx@GUICtx{guiWin = win, guiTimer = refreshTimer} = do started <- timerStart refreshTimer 1000 True if started then return () else fail "Could not start more timers" -- INTERNAL UTILS -------------------------------------------------------------- type ErrorString = String tryIn' :: HPS.ServerHandle -> HP.HPage x -> IO (Either ErrorString x) tryIn' model hpacc = tryIn model $ hpacc >>= return . Right tryIn :: HPS.ServerHandle -> HP.HPage (Either HP.InterpreterError x) -> IO (Either ErrorString x) tryIn model hpacc = do res <- HPS.runIn model $ catchError (hpacc >>= return . Right) (\ioerr -> return $ Left ioerr) case res of Left err -> return . Left $ ioeGetErrorString err Right (Left err) -> return . Left $ HP.prettyPrintError err Right (Right val) -> return . Right $ val -- FIND/REPLACE UTILS ---------------------------------------------------------- data FRFlags = FRFlags {frfGoingDown :: Bool, frfMatchCase :: Bool, frfWholeWord :: Bool, frfWrapSearch :: Bool} deriving (Eq, Show) buildFRFlags :: Bool -> Int -> IO FRFlags buildFRFlags w x = return FRFlags {frfGoingDown = (x .&. wxFR_DOWN) /= 0, frfMatchCase = (x .&. wxFR_MATCHCASE) /= 0, frfWholeWord = (x .&. wxFR_WHOLEWORD) /= 0, frfWrapSearch = w} openFindDialog :: HPS.ServerHandle -> GUIContext -> String -> Int -> IO () openFindDialog model guiCtx@GUICtx{guiWin = win, guiSearch = search} title dlgStyle = do frdialog <- findReplaceDialogCreate win search title $ dlgStyle + wxFR_NOWHOLEWORD let winSet k f = let hnd _ = f model guiCtx >> propagateEvent in windowOnEvent frdialog [k] hnd hnd winSet wxEVT_COMMAND_FIND findNextButton winSet wxEVT_COMMAND_FIND_NEXT findNextButton winSet wxEVT_COMMAND_FIND_REPLACE findReplaceButton winSet wxEVT_COMMAND_FIND_REPLACE_ALL findReplaceAllButton set frdialog [visible := True] findNextButton, findReplaceButton, findReplaceAllButton :: HPS.ServerHandle -> GUIContext -> IO () findNextButton model guiCtx@GUICtx{guiCode = txtCode, guiWin = win, guiSearch = search} = do s <- findReplaceDataGetFindString search fs <- findReplaceDataGetFlags search >>= buildFRFlags True mip <- findMatch s fs txtCode debugIO ("find/next", s, fs, mip) case mip of Nothing -> infoDialog win "Find Results" $ s ++ " not found." Just ip -> do textCtrlSetInsertionPoint txtCode ip refreshExpr model guiCtx textCtrlSetSelection txtCode ip (length s + ip) findReplaceButton model guiCtx@GUICtx{guiCode = txtCode, guiWin = win, guiSearch = search} = do s <- findReplaceDataGetFindString search r <- findReplaceDataGetReplaceString search fs <- findReplaceDataGetFlags search >>= buildFRFlags True mip <- findMatch s fs txtCode debugIO ("replace", s, r, fs, mip) case mip of Nothing -> infoDialog win "Find Results" $ s ++ " not found." Just ip -> do textCtrlReplace txtCode ip (length s + ip) r textCtrlSetInsertionPoint txtCode ip refreshExpr model guiCtx textCtrlSetSelection txtCode ip (length r + ip) findReplaceAllButton _model GUICtx{guiCode = txtCode, guiSearch = search} = do s <- findReplaceDataGetFindString search r <- findReplaceDataGetReplaceString search fs <- findReplaceDataGetFlags search >>= buildFRFlags False debugIO ("all", s, r, fs) textCtrlSetInsertionPoint txtCode 0 unfoldM_ $ do mip <- findMatch s fs txtCode case mip of Nothing -> return mip Just ip -> do textCtrlReplace txtCode ip (length s + ip) r textCtrlSetInsertionPoint txtCode $ length r + ip return mip findMatch :: String -> FRFlags -> TextCtrl () -> IO (Maybe Int) findMatch query flags txtCode = do txt <- get txtCode text ip <- textCtrlGetInsertionPoint txtCode let (substring, string) = if frfMatchCase flags then (query, txt) else (map toLower query, map toLower txt) funct = if frfGoingDown flags then nextMatch (ip + 1) else prevMatch ip (mip, wrapped) = funct substring string return $ if (not $ frfWrapSearch flags) && wrapped then Nothing else mip prevMatch, nextMatch :: Int -> String -> String -> (Maybe Int, Bool) prevMatch _ [] _ = (Nothing, True) -- When looking for nothing, that's what you get prevMatch from substring string | length string < from || from <= 0 = prevMatch (length string) substring string | otherwise = case nextMatch (fromBack from) (reverse substring) (reverse string) of (Nothing, wrapped) -> (Nothing, wrapped) (Just ri, wrapped) -> (Just $ fromBack (ri + length substring), wrapped) where fromBack x = length string - x nextMatch _ [] _ = (Nothing, True) -- When looking for nothing, that's what you get nextMatch from substring string | length substring > length string = (Nothing, True) | length string <= from = nextMatch 0 substring string | otherwise = let after = drop from string before = take (from + length substring) string aIndex = indexOf substring after bIndex = indexOf substring before in case aIndex of Just ai -> (Just $ from + ai, False) Nothing -> case bIndex of Nothing -> (Nothing, True) Just bi -> (Just bi, True) indexOf :: String -> String -> Maybe Int indexOf substring string = findIndex (isPrefixOf substring) $ tails string