{-# 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 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 Graphics.UI.WXCore.Types import Graphics.UI.WXCore.Dialogs import Graphics.UI.WXCore.Events --import Graphics.UI.WXCore.WxcClasses hiding (Process, kill) import qualified HPage.Control as HP import qualified HPage.Server as HPS import HPage.GUI.Dialogs import HPage.GUI.IDs 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 GUIResults = GUIRes { resButton :: Button (), resLabel :: StaticText (), resValue :: TextCtrl (), res4Dots :: StaticText (), resType :: TextCtrl () } data GUIContext = GUICtx { guiWin :: Frame (), guiPages :: SingleListBox (), guiModules :: (Var Int, ListCtrl ()), guiCode :: TextCtrl (), guiResults :: GUIResults, guiStatus :: StatusField, guiTimer :: Var (TimerEx ()), guiSearch :: FindReplaceData ()} gui :: IO () gui = do -- Server context model <- HPS.start win <- frame [text := "λPage"] 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] 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 λPage! type in your instructions :)"] set win [statusBar := [status]] -- Timer ... refreshTimer <- timer win [interval := 1000000, on command := debugIO "Inactivity detected"] varTimer <- varCreate refreshTimer -- Search ... search <- findReplaceDataCreate wxFR_DOWN let guiRes = GUIRes btnInterpret lblInterpret txtValue lbl4Dots txtType let guiCtx = GUICtx win lstPages (varModsSel, lstModules) txtCode guiRes status varTimer search let onCmd name acc = traceIO ("onCmd", name) >> acc model guiCtx set btnInterpret [on command := onCmd "interpret" interpret] -- Events set lstPages [on select := onCmd "pageChange" pageChange] set txtCode [on keyboard := \_ -> onCmd "restartTimer" restartTimer >> propagateEvent, on mouse := \e -> case e of MouseLeftUp _ _ -> onCmd "mouseEvent" restartTimer >> propagateEvent MouseLeftDClick _ _ -> onCmd "mouseEvent" restartTimer >> propagateEvent MouseRightDown _ _ -> onCmd "textContextMenu" textContextMenu _ -> 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 := close win] 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-Shift-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 mnuHelp <- menuHelp [] menuAppend mnuHelp wxId_HELP "&Help page\tCtrl-h" "Open the Help Page" False menuAbout mnuHelp [on command := infoDialog win "About λPage" "Author: Fernando Brujo Benavides"] 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_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] -- ...and RUN! refreshPage model guiCtx onCmd "start" openHelpPage focusOn txtCode -- EVENT HANDLERS -------------------------------------------------------------- refreshPage, savePageAs, savePage, openPage, pageChange, copy, cut, paste, justFind, justFindNext, justFindPrev, findReplace, textContextMenu, moduleContextMenu, restartTimer, killTimer, 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 debugIO ("the item", itm) 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 menuAppendSub contextMenu wxId_HASK_BROWSE "&Browse" browseMenu "" createMenuItem m fn@(HP.MEFun _ _) = do item <- menuItemCreate menuItemSetCheckable item False menuItemSetText item $ show fn menuItemSetId item wxId_HASK_MENUELEM menuAppendItem m item createMenuItem m HP.MEClass{HP.clsName = cn, HP.clsFuns = []} = do item <- menuItemCreate menuItemSetCheckable item False menuItemSetText item $ "class " ++ cn menuItemSetId item wxId_HASK_MENUELEM menuAppendItem m item createMenuItem m HP.MEClass{HP.clsName = cn, HP.clsFuns = cfs} = do subMenu <- menuPane [] flip mapM_ cfs $ createMenuItem subMenu menuAppendSub m wxId_HASK_MENUELEM ("class " ++ cn) subMenu "" createMenuItem m HP.MEData{HP.datName = dn, HP.datCtors = []} = do item <- menuItemCreate menuItemSetCheckable item False menuItemSetText item $ "data " ++ dn menuItemSetId item wxId_HASK_MENUELEM menuAppendItem m item createMenuItem m HP.MEData{HP.datName = dn, HP.datCtors = dcs} = do subMenu <- menuPane [] flip mapM_ dcs $ createMenuItem subMenu menuAppendSub m wxId_HASK_MENUELEM ("data " ++ dn) subMenu "" 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_INTERPRET "&Interpret\tCtrl-i" "Interpret the Current Expression" 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 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 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 cut model guiCtx@GUICtx{guiCode = txtCode} = textCtrlCut txtCode >> refreshPage model guiCtx paste model guiCtx@GUICtx{guiCode = txtCode} = textCtrlPaste txtCode >> refreshPage 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 pkg -> do absPath <- canonicalizePath setupConfig let dir = joinPath . reverse . drop 2 . reverse $ splitDirectories absPath setCurrentDirectory dir frameSetTitle win $ "λPage - " ++ 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 [text := txt] -- Refresh the current expression box refreshExpr model guiCtx True 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') debugIO ("allms", allms) 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] -- Clean the status bar set status [text := ""] -- Refresh the current expression box refreshExpr model guiCtx True 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 interpret model guiCtx@GUICtx{guiResults = GUIRes{resLabel = lblInterpret, resButton = btnInterpret, resValue = txtValue, res4Dots = lbl4Dots, resType = txtType}, guiCode = txtCode, guiWin = win} = do sel <- textCtrlGetStringSelection txtCode let runner = case sel of "" -> tryIn sl -> runTxtHPSelection sl refreshExpr model guiCtx False res <- runner model HP.interpret case res of Left err -> do warningDialog win "Error" err set btnInterpret [enabled := True] Right interp -> if HP.isIntType interp then do set txtValue [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 -- set txtValue [text := ""] prevOnCmd <- get btnInterpret $ on command prevText <- get btnInterpret text let prevAttrs = [on command := prevOnCmd, text := prevText] debugIO "++> Spawning the value filler..." vfHandle <- spawn . valueFiller $ HP.intValue interp debugIO "++> Value filler spawned" set btnInterpret [text := "Cancel", on command := kill vfHandle >> set btnInterpret prevAttrs] where valueFiller :: String -> Process a () valueFiller val = do let bottomString = "_|_" bottomChar = "_i_" liftDebugIO "++> starting loop..." h <- liftIO $ try (case val of [] -> return [] (c:_) -> return [c]) --liftDebugIO ("++> h =", h) case h of Left (ErrorCall desc) -> liftIO $ debugIO ("++> Left", desc) >> addText bottomString >> return () Right [] -> liftIO $ debugIO "++> done" >> return () Right t -> do liftIO $ catch (addText t) $ \(ErrorCall _desc) -> addText bottomChar liftDebugIO "++> restarting" valueFiller $ tail val addText t = do debugIO ("Adding", t) orig <- get txtValue text set txtValue [text := orig ++ t] runTxtHPSelection :: String -> HPS.ServerHandle -> HP.HPage (Either HP.InterpreterError HP.Interpretation) -> IO (Either ErrorString HP.Interpretation) runTxtHPSelection s model hpacc = do debugIO ("evaluating selection", s) 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 -> Bool -> IO () refreshExpr model guiCtx@GUICtx{guiResults = GUIRes{resValue = txtValue, resType = txtType}, guiCode = txtCode, guiWin = win} forceClear = do txt <- get txtCode text ip <- textCtrlGetInsertionPoint txtCode res <- tryIn' model $ HP.setPageText txt ip case res of Left err -> warningDialog win "Error" err Right changed -> if changed || forceClear then mapM_ (flip set [text := ""]) [txtValue, txtType] else debugIO "dummy refreshExpr" killTimer model guiCtx -- TIMER HANDLERS -------------------------------------------------------------- restartTimer model guiCtx@GUICtx{guiWin = win, guiTimer = varTimer} = do newRefreshTimer <- timer win [interval := 1000, on command := refreshExpr model guiCtx False] refreshTimer <- varSwap varTimer newRefreshTimer timerOnCommand refreshTimer $ return () killTimer _model GUICtx{guiWin = win, guiTimer = varTimer} = do -- kill the timer till there's new notices newRefreshTimer <- timer win [interval := 1000000, on command := debugIO "Inactivity detected"] refreshTimer <- varSwap varTimer newRefreshTimer timerOnCommand refreshTimer $ return () -- 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 -> do errorIO 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 textCtrlSetSelection txtCode (length s + ip) ip refreshExpr model guiCtx False 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 textCtrlSetSelection txtCode (length r + ip) ip refreshExpr model guiCtx False 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