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-rw-r--r--background_scripts/completion.coffee22
1 files changed, 10 insertions, 12 deletions
diff --git a/background_scripts/completion.coffee b/background_scripts/completion.coffee
index dc24ebb7..dc5519d5 100644
--- a/background_scripts/completion.coffee
+++ b/background_scripts/completion.coffee
@@ -265,31 +265,29 @@ class TabRecency
timestamp: 1
current: -1
cache: {}
-
lastVisited: null
lastVisitedTime: null
-
- timeDelta: 500
+ timeDelta: 500 # Milliseconds.
constructor: ->
- chrome.tabs.onActivated.addListener (activeInfo) => @add activeInfo.tabId
- chrome.tabs.onRemoved.addListener (tabId) => @remove tabId
+ chrome.tabs.onActivated.addListener (activeInfo) => @register activeInfo.tabId
+ chrome.tabs.onRemoved.addListener (tabId) => @deregister tabId
chrome.tabs.onReplaced.addListener (addedTabId, removedTabId) =>
- @remove removedTabId
- @add addedTabId
+ @deregister removedTabId
+ @register addedTabId
- add: (tabId) ->
+ register: (tabId) ->
currentTime = new Date()
- # Register tabId if it has been visited for at least @timeDelta. Tabs which are visited only for a
- # very-short time (e.g. those passed through with `5J`) shouldn't be registered as visited at all.
- if @lastVisitedTime? and currentTime - @lastVisitedTime >= @timeDelta
+ # Register tabId if it has been visited for at least @timeDelta ms. Tabs which are visited only for a
+ # very-short time (e.g. those passed through with `5J`) aren't registered as visited at all.
+ if @lastVisitedTime? and @timeDelta <= currentTime - @lastVisitedTime
@cache[@lastVisited] = ++@timestamp
@current = @lastVisited = tabId
@lastVisitedTime = currentTime
- remove: (tabId) ->
+ deregister: (tabId) ->
if tabId == @lastVisited
# Ensure we don't register this tab, since it's going away.
@lastVisited = @lastVisitedTime = null