hsfm/src/GUI/Gtk/Callbacks.hs

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{--
HSFM, a filemanager written in Haskell.
Copyright (C) 2015 Julian Ospald
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
version 2 as published by the Free Software Foundation.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
--}
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{-# OPTIONS_HADDOCK ignore-exports #-}
module GUI.Gtk.Callbacks where
import Control.Applicative
(
(<$>)
, (<*>)
)
import Control.Concurrent.STM
(
readTVarIO
)
import Control.Exception
(
throw
)
import Control.Monad
(
void
, forM_
)
import Control.Monad.IO.Class
(
liftIO
)
import Data.DirTree
import Data.Foldable
(
for_
)
import Graphics.UI.Gtk
import GUI.Gtk.Data
import GUI.Gtk.Dialogs
import GUI.Gtk.MyView
import GUI.Gtk.Utils
import qualified HPath as P
import IO.Error
import IO.File
import IO.Utils
import System.FilePath
(
isAbsolute
, (</>)
)
import System.Glib.UTFString
(
glibToString
)
-----------------
--[ Callbacks ]--
-----------------
-- |Set callbacks, on hotkeys, events and stuff.
setCallbacks :: MyGUI -> MyView -> IO ()
setCallbacks mygui myview = do
view' <- readTVarIO $ view myview
case view' of
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FMTreeView treeView -> do
_ <- treeView `on` rowActivated
$ (\_ _ -> withItems mygui myview open)
commonGuiEvents treeView
return ()
FMIconView iconView -> do
_ <- iconView `on` itemActivated
$ (\_ -> withItems mygui myview open)
commonGuiEvents iconView
return ()
menubarCallbacks
where
menubarCallbacks = do
-- menubar-file
_ <- menubarFileQuit mygui `on` menuItemActivated $ mainQuit
_ <- menubarFileOpen mygui `on` menuItemActivated $
liftIO $ withItems mygui myview open
_ <- menubarFileExecute mygui `on` menuItemActivated $
liftIO $ withItems mygui myview execute
_ <- menubarFileNew mygui `on` menuItemActivated $
liftIO $ newFile mygui myview
-- menubar-edit
_ <- menubarEditCut mygui `on` menuItemActivated $
liftIO $ withItems mygui myview moveInit
_ <- menubarEditCopy mygui `on` menuItemActivated $
liftIO $ withItems mygui myview copyInit
_ <- menubarEditRename mygui `on` menuItemActivated $
liftIO $ withItems mygui myview renameF
_ <- menubarEditPaste mygui `on` menuItemActivated $
liftIO $ operationFinal mygui myview
_ <- menubarEditDelete mygui `on` menuItemActivated $
liftIO $ withItems mygui myview del
-- mewnubar-view
_ <- menubarViewIcon mygui `on` menuItemActivated $
liftIO $ switchView mygui myview createIconView
_ <- menubarViewTree mygui `on` menuItemActivated $
liftIO $ switchView mygui myview createTreeView
-- menubar-help
_ <- menubarHelpAbout mygui `on` menuItemActivated $
liftIO showAboutDialog
return ()
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commonGuiEvents view = do
-- GUI events
_ <- urlBar mygui `on` entryActivated $ urlGoTo mygui myview
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_ <- refreshViewB mygui `on` buttonActivated $ do
cdir <- liftIO $ getCurrentDir myview
refreshView' mygui myview cdir
_ <- clearStatusBar mygui `on` buttonActivated $ do
popStatusbar mygui
writeTVarIO (operationBuffer myview) None
-- key events
_ <- rootWin mygui `on` keyPressEvent $ tryEvent $ do
[Control] <- eventModifier
"q" <- fmap glibToString eventKeyName
liftIO mainQuit
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_ <- view `on` keyPressEvent $ tryEvent $ do
[Control] <- eventModifier
"h" <- fmap glibToString eventKeyName
cdir <- liftIO $ getCurrentDir myview
liftIO $ modifyTVarIO (settings mygui)
(\x -> x { showHidden = not . showHidden $ x})
>> refreshView' mygui myview cdir
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_ <- view `on` keyPressEvent $ tryEvent $ do
[Alt] <- eventModifier
"Up" <- fmap glibToString eventKeyName
liftIO $ upDir mygui myview
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_ <- view `on` keyPressEvent $ tryEvent $ do
"Delete" <- fmap glibToString eventKeyName
liftIO $ withItems mygui myview del
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_ <- view `on` keyPressEvent $ tryEvent $ do
[] <- eventModifier
"Return" <- fmap glibToString eventKeyName
liftIO $ withItems mygui myview open
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_ <- view `on` keyPressEvent $ tryEvent $ do
[Control] <- eventModifier
"c" <- fmap glibToString eventKeyName
liftIO $ withItems mygui myview copyInit
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_ <- view `on` keyPressEvent $ tryEvent $ do
[Control] <- eventModifier
"x" <- fmap glibToString eventKeyName
liftIO $ withItems mygui myview moveInit
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_ <- view `on` keyPressEvent $ tryEvent $ do
[Control] <- eventModifier
"v" <- fmap glibToString eventKeyName
liftIO $ operationFinal mygui myview
-- righ-click
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_ <- view `on` buttonPressEvent $ do
eb <- eventButton
t <- eventTime
case eb of
RightButton -> liftIO $ menuPopup (rcMenu mygui)
$ Just (RightButton, t)
_ -> return ()
return False
_ <- rcFileOpen mygui `on` menuItemActivated $
liftIO $ withItems mygui myview open
_ <- rcFileExecute mygui `on` menuItemActivated $
liftIO $ withItems mygui myview execute
_ <- rcFileNew mygui `on` menuItemActivated $
liftIO $ newFile mygui myview
_ <- rcFileCopy mygui `on` menuItemActivated $
liftIO $ withItems mygui myview copyInit
_ <- rcFileRename mygui `on` menuItemActivated $
liftIO $ withItems mygui myview renameF
_ <- rcFilePaste mygui `on` menuItemActivated $
liftIO $ operationFinal mygui myview
_ <- rcFileDelete mygui `on` menuItemActivated $
liftIO $ withItems mygui myview del
_ <- rcFileCut mygui `on` menuItemActivated $
liftIO $ withItems mygui myview moveInit
return ()
-- |Go to the url given at the 'urlBar' and visualize it in the given
-- treeView.
urlGoTo :: MyGUI -> MyView -> IO ()
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urlGoTo mygui myview = withErrorDialog $ do
fp <- entryGetText (urlBar mygui)
let abs = isAbsolute fp
exists <- (||) <$> doesDirectoryExist fp <*> doesFileExist fp
-- TODO: more explicit error handling?
refreshView mygui myview (Just fp)
-- |Supposed to be used with 'withRows'. Opens a file or directory.
open :: [Item] -> MyGUI -> MyView -> IO ()
open [item] mygui myview = withErrorDialog $
case item of
ADirOrSym r -> do
nv <- Data.DirTree.readFileWithFileInfo $ fullPath r
refreshView' mygui myview nv
r ->
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void $ openFile r
-- this throws on the first error that occurs
open (FileLikeList fs) mygui myview = withErrorDialog $
forM_ fs $ \f -> void $ openFile f
open _ _ _ = withErrorDialog
. throw $ InvalidOperation
"Operation not supported on multiple files"
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-- |Execute a given file.
execute :: [Item] -> MyGUI -> MyView -> IO ()
execute [item] mygui myview = withErrorDialog $
void $ executeFile item []
execute _ _ _ = withErrorDialog
. throw $ InvalidOperation
"Operation not supported on multiple files"
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-- |Supposed to be used with 'withRows'. Deletes a file or directory.
del :: [Item] -> MyGUI -> MyView -> IO ()
del [item] mygui myview = withErrorDialog $ do
let cmsg = "Really delete \"" ++ P.fromAbs (fullPath item) ++ "\"?"
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withConfirmationDialog cmsg
$ easyDelete item
-- this throws on the first error that occurs
del items@(_:_) mygui myview = withErrorDialog $ do
let cmsg = "Really delete " ++ show (length items) ++ " files?"
withConfirmationDialog cmsg
$ forM_ items $ \item -> easyDelete item
del _ _ _ = withErrorDialog
. throw $ InvalidOperation
"Operation not supported on multiple files"
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-- |Initializes a file move operation.
moveInit :: [Item] -> MyGUI -> MyView -> IO ()
moveInit [item] mygui myview = do
writeTVarIO (operationBuffer myview) (FMove . MP1 $ item)
let sbmsg = "Move buffer: " ++ P.fromAbs (fullPath item)
popStatusbar mygui
void $ pushStatusBar mygui sbmsg
moveInit _ _ _ = withErrorDialog
. throw $ InvalidOperation
"Operation not supported on multiple files"
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-- |Supposed to be used with 'withRows'. Initializes a file copy operation.
copyInit :: [Item] -> MyGUI -> MyView -> IO ()
copyInit [item] mygui myview = do
writeTVarIO (operationBuffer myview) (FCopy . CP1 $ item)
let sbmsg = "Copy buffer: " ++ P.fromAbs (fullPath item)
popStatusbar mygui
void $ pushStatusBar mygui sbmsg
copyInit _ _ _ = withErrorDialog
. throw $ InvalidOperation
"Operation not supported on multiple files"
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-- |Finalizes a file operation, such as copy or move.
operationFinal :: MyGUI -> MyView -> IO ()
operationFinal mygui myview = withErrorDialog $ do
op <- readTVarIO (operationBuffer myview)
cdir <- getCurrentDir myview
case op of
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FMove (MP1 s) -> do
let cmsg = "Really move \"" ++ P.fromAbs (fullPath s)
++ "\"" ++ " to \"" ++ P.fromAbs (fullPath cdir) ++ "\"?"
withConfirmationDialog cmsg . withCopyModeDialog
$ \cm -> void $ runFileOp (FMove . MC s cdir $ cm)
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return ()
FCopy (CP1 s) -> do
let cmsg = "Really copy \"" ++ P.fromAbs (fullPath s)
++ "\"" ++ " to \"" ++ P.fromAbs (fullPath cdir) ++ "\"?"
withConfirmationDialog cmsg . withCopyModeDialog
$ \cm -> void $ runFileOp (FCopy . CC s cdir $ cm)
return ()
_ -> return ()
-- |Go up one directory and visualize it in the treeView.
upDir :: MyGUI -> MyView -> IO ()
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upDir mygui myview = withErrorDialog $ do
cdir <- getCurrentDir myview
rawModel' <- readTVarIO $ rawModel myview
sortedModel' <- readTVarIO $ sortedModel myview
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nv <- goUp cdir
refreshView' mygui myview nv
-- |Go up one directory and visualize it in the treeView.
newFile :: MyGUI -> MyView -> IO ()
newFile mygui myview = withErrorDialog $ do
mfn <- textInputDialog "Enter file name"
let pmfn = P.parseFn =<< mfn
for_ pmfn $ \fn -> do
cdir <- getCurrentDir myview
createFile cdir fn
renameF :: [Item] -> MyGUI -> MyView -> IO ()
renameF [item] mygui myview = withErrorDialog $ do
mfn <- textInputDialog "Enter new file name"
let pmfn = P.parseFn =<< mfn
for_ pmfn $ \fn -> do
let cmsg = "Really rename \"" ++ P.fromAbs (fullPath item)
++ "\"" ++ " to \"" ++ P.fromAbs (anchor item P.</> fn) ++ "\"?"
withConfirmationDialog cmsg $ IO.File.renameFile item fn
renameF _ _ _ = withErrorDialog
. throw $ InvalidOperation
"Operation not supported on multiple files"