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Respect maxTopicHistory when entering topics into the history

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So far, maxTopicHistory was only used when pretty-printing the history
via pprWindowSet, which does not line up with the documentation that it
has.
This commit is contained in:
slotThe 2020-11-16 12:11:40 +01:00
parent 4c0b5330e7
commit aa67fa5352
1 changed files with 9 additions and 8 deletions
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17
XMonad/Actions/TopicSpace.hs
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@ -271,13 +271,13 @@ getLastFocusedTopics = XS.gets getPrevTopics
-- | Given a 'TopicConfig', a topic, and a predicate to select topics that one
-- wants to keep, this function will filter the list of last focused topics
-- according to the predicate and cons the topic in front of that list.
setLastFocusedTopic :: Topic -> (Topic -> Bool) -> X ()
setLastFocusedTopic w predicate =
-- according to the predicate and cons the topic in front of that list. Note
-- that we prune the list in case its length exceeds 'maxTopicHistory'.
setLastFocusedTopic :: TopicConfig -> Topic -> (Topic -> Bool) -> X ()
setLastFocusedTopic tc w predicate =
XS.modify $ PrevTopics
. seqList . nub . (w:) . filter predicate
. getPrevTopics
where seqList xs = length xs `seq` xs
. take (maxTopicHistory tc)
. nub . (w :) . filter predicate . getPrevTopics
-- | Reverse the list of "last focused topics"
reverseLastFocusedTopics :: X ()
@ -293,7 +293,8 @@ pprWindowSet tg pp = do
urgents <- readUrgents
let empty_workspaces = map W.tag $ filter (isNothing . W.stack) $ W.workspaces winset
maxDepth = maxTopicHistory tg
setLastFocusedTopic (W.tag . W.workspace . W.current $ winset)
setLastFocusedTopic tg
(W.tag . W.workspace . W.current $ winset)
(`notElem` empty_workspaces)
lastWs <- getLastFocusedTopics
let depth topic = fromJust $ elemIndex topic (lastWs ++ [topic])
@ -320,7 +321,7 @@ switchTopic :: TopicConfig -> Topic -> X ()
switchTopic tg topic = do
-- Switch to topic and add it to the last seen topics
windows $ W.greedyView topic
setLastFocusedTopic topic (const True)
setLastFocusedTopic tg topic (const True)
-- If applicable, execute the topic action
wins <- gets (W.integrate' . W.stack . W.workspace . W.current . windowset)