diff options
Diffstat (limited to 'background_scripts/completion.coffee')
| -rw-r--r-- | background_scripts/completion.coffee | 29 |
1 files changed, 28 insertions, 1 deletions
diff --git a/background_scripts/completion.coffee b/background_scripts/completion.coffee index b75ebb87..b6a52a15 100644 --- a/background_scripts/completion.coffee +++ b/background_scripts/completion.coffee @@ -261,6 +261,29 @@ class DomainCompleter # Suggestions from the Domain completer have the maximum relevancy. They should be shown first in the list. computeRelevancy: -> 1 +# TabRecency associates a logical timestamp with each tab id. +class TabRecency + constructor: -> + @timestamp = 1 + @cache = {} + + chrome.tabs.onActivated.addListener (activeInfo) => @add activeInfo.tabId + chrome.tabs.onRemoved.addListener (tabId) => @remove tabId + + chrome.tabs.onReplaced.addListener (addedTabId, removedTabId) => + @remove removedTabId + @add addedTabId + + add: (tabId) -> @cache[tabId] = ++@timestamp + remove: (tabId) -> delete @cache[tabId] + + # Recently-visited tabs get a higher score (except the current tab, which gets a low score). + recencyScore: (tabId) -> + @cache[tabId] ||= 1 + if @cache[tabId] == @timestamp then 0.0 else @cache[tabId] / @timestamp + +tabRecency = new TabRecency() + # Searches through all open tabs, matching on title and URL. class TabCompleter filter: (queryTerms, onComplete) -> @@ -276,7 +299,10 @@ class TabCompleter onComplete(suggestions) computeRelevancy: (suggestion) -> - RankingUtils.wordRelevancy(suggestion.queryTerms, suggestion.url, suggestion.title) + if suggestion.queryTerms.length + RankingUtils.wordRelevancy(suggestion.queryTerms, suggestion.url, suggestion.title) + else + tabRecency.recencyScore(suggestion.tabId) # A completer which will return your search engines class SearchEngineCompleter @@ -549,3 +575,4 @@ root.SearchEngineCompleter = SearchEngineCompleter root.HistoryCache = HistoryCache root.RankingUtils = RankingUtils root.RegexpCache = RegexpCache +root.TabRecency = TabRecency |