| // Copyright 2025 The Chromium Authors |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "chrome/browser/ui/tabs/contents_observing_tab_feature.h" |
| |
| #include "base/functional/bind.h" |
| #include "components/tabs/public/tab_interface.h" |
| |
| namespace tabs { |
| |
| ContentsObservingTabFeature::ContentsObservingTabFeature(TabInterface& tab) |
| : tab_(tab) { |
| tab_subscription_ = tab.RegisterWillDiscardContents(base::BindRepeating( |
| &ContentsObservingTabFeature::OnDiscardContents, base::Unretained(this))); |
| Observe(tab.GetContents()); |
| } |
| |
| ContentsObservingTabFeature::~ContentsObservingTabFeature() = default; |
| |
| void ContentsObservingTabFeature::OnDiscardContents( |
| TabInterface* tab, |
| content::WebContents* old_contents, |
| content::WebContents* new_contents) { |
| CHECK_EQ(tab, &tab_.get()); |
| Observe(new_contents); |
| } |
| |
| } // namespace tabs |
