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| 1 // Copyright 2016 The Chromium Authors. All rights reserved. | 1 // Copyright 2016 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "chrome/browser/ui/app_list/search/app_result.h" | 5 #include "chrome/browser/ui/app_list/search/app_result.h" |
| 6 | 6 |
| 7 #include "base/time/time.h" | 7 #include "base/time/time.h" |
| 8 #include "ui/app_list/app_list_switches.h" | 8 #include "ui/app_list/app_list_switches.h" |
| 9 | 9 |
| 10 namespace app_list { | 10 namespace app_list { |
| 11 | 11 |
| 12 AppResult::AppResult(Profile* profile, | 12 AppResult::AppResult(Profile* profile, |
| 13 const std::string& app_id, | 13 const std::string& app_id, |
| 14 AppListControllerDelegate* controller, | 14 AppListControllerDelegate* controller, |
| 15 bool is_recommendation) | 15 bool is_recommendation) |
| 16 : profile_(profile), | 16 : profile_(profile), |
| 17 app_id_(app_id), | 17 app_id_(app_id), |
| 18 controller_(controller) { | 18 controller_(controller) { |
| 19 set_display_type(is_recommendation ? DISPLAY_RECOMMENDATION : DISPLAY_TILE); | 19 set_display_type(is_recommendation ? DISPLAY_RECOMMENDATION : DISPLAY_TILE); |
| 20 set_result_type(RESULT_INSTALLED_APP); |
| 20 } | 21 } |
| 21 | 22 |
| 22 AppResult::~AppResult() { | 23 AppResult::~AppResult() { |
| 23 } | 24 } |
| 24 | 25 |
| 25 void AppResult::UpdateFromLastLaunchedOrInstalledTime( | 26 void AppResult::UpdateFromLastLaunchedOrInstalledTime( |
| 26 const base::Time& current_time, | 27 const base::Time& current_time, |
| 27 const base::Time& old_time) { | 28 const base::Time& old_time) { |
| 28 // |current_time| can be before |old_time| in weird cases such as users | 29 // |current_time| can be before |old_time| in weird cases such as users |
| 29 // playing with their clocks. Handle this gracefully. | 30 // playing with their clocks. Handle this gracefully. |
| 30 if (current_time < old_time) { | 31 if (current_time < old_time) { |
| 31 set_relevance(1.0); | 32 set_relevance(1.0); |
| 32 return; | 33 return; |
| 33 } | 34 } |
| 34 | 35 |
| 35 base::TimeDelta delta = current_time - old_time; | 36 base::TimeDelta delta = current_time - old_time; |
| 36 const int kSecondsInWeek = 60 * 60 * 24 * 7; | 37 const int kSecondsInWeek = 60 * 60 * 24 * 7; |
| 37 | 38 |
| 38 // Set the relevance to a value between 0 and 1. This function decays as the | 39 // Set the relevance to a value between 0 and 1. This function decays as the |
| 39 // time delta increases and reaches a value of 0.5 at 1 week. | 40 // time delta increases and reaches a value of 0.5 at 1 week. |
| 40 set_relevance(1 / (1 + delta.InSecondsF() / kSecondsInWeek)); | 41 set_relevance(1 / (1 + delta.InSecondsF() / kSecondsInWeek)); |
| 41 } | 42 } |
| 42 | 43 |
| 43 } // namespace app_list | 44 } // namespace app_list |
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