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| 1 // Copyright 2017 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. |
| 4 |
| 5 #import "ios/chrome/browser/metrics/tab_usage_recorder_web_state_list_observer.h
" |
| 6 |
| 7 #include "base/logging.h" |
| 8 #include "ios/chrome/browser/metrics/tab_usage_recorder.h" |
| 9 #include "ios/chrome/browser/tabs/legacy_tab_helper.h" |
| 10 |
| 11 #if !defined(__has_feature) || !__has_feature(objc_arc) |
| 12 #error "This file requires ARC support." |
| 13 #endif |
| 14 |
| 15 TabUsageRecorderWebStateListObserver::TabUsageRecorderWebStateListObserver( |
| 16 TabUsageRecorder* tab_usage_recorder) |
| 17 : tab_usage_recorder_(tab_usage_recorder) { |
| 18 DCHECK(tab_usage_recorder_); |
| 19 } |
| 20 |
| 21 TabUsageRecorderWebStateListObserver::~TabUsageRecorderWebStateListObserver() = |
| 22 default; |
| 23 |
| 24 void TabUsageRecorderWebStateListObserver::WebStateActivatedAt( |
| 25 WebStateList* web_state_list, |
| 26 web::WebState* old_web_state, |
| 27 web::WebState* new_web_state, |
| 28 int active_index, |
| 29 bool user_action) { |
| 30 if (!user_action) |
| 31 return; |
| 32 |
| 33 tab_usage_recorder_->RecordTabSwitched( |
| 34 old_web_state ? LegacyTabHelper::GetTabForWebState(old_web_state) : nil, |
| 35 new_web_state ? LegacyTabHelper::GetTabForWebState(new_web_state) : nil); |
| 36 } |
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