diff options
Diffstat (limited to 'StackSet.hs')
| -rw-r--r-- | StackSet.hs | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/StackSet.hs b/StackSet.hs index bd7a6fa..48006dd 100644 --- a/StackSet.hs +++ b/StackSet.hs @@ -26,7 +26,7 @@ module StackSet ( focusWindow, tagMember, member, findIndex, -- * Modifying the stackset -- $modifyStackset - insertUp, delete, filter, + insertUp, delete, delete', filter, -- * Setting the master window -- $settingMW swapMaster, swapUp, swapDown, modify, modify', float, sink, -- needed by users @@ -453,9 +453,14 @@ insertUp a s = if member a s then s else insert -- * otherwise, delete doesn't affect the master. -- delete :: (Ord a, Eq s) => a -> StackSet i a s sd -> StackSet i a s sd -delete w s = s { current = removeFromScreen (current s) - , visible = map removeFromScreen (visible s) - , hidden = map removeFromWorkspace (hidden s) } +delete w = sink w . delete' w + +-- only temporarily remove the window from the stack, thereby not destroying special +-- information saved in the Stackset +delete' :: (Ord a, Eq s) => a -> StackSet i a s sd -> StackSet i a s sd +delete' w s = s { current = removeFromScreen (current s) + , visible = map removeFromScreen (visible s) + , hidden = map removeFromWorkspace (hidden s) } where removeFromWorkspace ws = ws { stack = stack ws >>= filter (/=w) } removeFromScreen scr = scr { workspace = removeFromWorkspace (workspace scr) } @@ -495,5 +500,5 @@ swapMaster = modify' $ \c -> case c of shift :: (Ord a, Eq s, Eq i) => i -> StackSet i a s sd -> StackSet i a s sd shift n s | n `tagMember` s && n /= curtag = maybe s go (peek s) | otherwise = s - where go w = view curtag . insertUp w . view n . delete w $ s + where go w = view curtag . insertUp w . view n . delete' w $ s curtag = tag (workspace (current s)) |