| // Copyright 2021 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef CHROME_BROWSER_UI_APP_LIST_SEARCH_RANKING_REMOVED_RESULTS_RANKER_H_ |
| #define CHROME_BROWSER_UI_APP_LIST_SEARCH_RANKING_REMOVED_RESULTS_RANKER_H_ |
| |
| #include "base/files/file_path.h" |
| #include "base/time/time.h" |
| #include "chrome/browser/ui/app_list/search/ranking/ranker.h" |
| #include "chrome/browser/ui/app_list/search/ranking/removed_results.pb.h" |
| #include "chrome/browser/ui/app_list/search/util/persistent_proto.h" |
| |
| namespace app_list { |
| |
| // A ranker which removes results which have previously been marked for removal |
| // from the launcher search results list. |
| // |
| // On a call to Remove(), the result slated for removal is recorded, and queued |
| // to be persisted to disk. |
| // On a call to Rank(), previously removed results are filtered out. |
| class RemovedResultsRanker : public Ranker { |
| public: |
| explicit RemovedResultsRanker(PersistentProto<RemovedResultsProto> proto); |
| ~RemovedResultsRanker() override; |
| |
| RemovedResultsRanker(const RemovedResultsRanker&) = delete; |
| RemovedResultsRanker& operator=(const RemovedResultsRanker&) = delete; |
| |
| // Ranker: |
| void UpdateResultRanks(ResultsMap& results, ProviderType provider) override; |
| |
| void Remove(ChromeSearchResult* result) override; |
| |
| private: |
| friend class RemovedResultsRankerTest; |
| |
| // Whether the ranker has finished reading from disk. |
| bool initialized() const { return proto_.initialized(); } |
| |
| // How long to wait until writing any |proto_| updates to disk. |
| base::TimeDelta write_delay_; |
| |
| PersistentProto<RemovedResultsProto> proto_; |
| }; |
| |
| } // namespace app_list |
| |
| #endif // CHROME_BROWSER_UI_APP_LIST_SEARCH_RANKING_REMOVED_RESULTS_RANKER_H_ |