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// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_UI_ANDROID_TAB_MODEL_TAB_MODEL_OBSERVER_H_
#define CHROME_BROWSER_UI_ANDROID_TAB_MODEL_TAB_MODEL_OBSERVER_H_
#include <vector>
#include "base/memory/raw_ptr.h"
#include "chrome/browser/ui/android/tab_model/tab_model.h"
class TabAndroid;
// An interface to be notified about changes to a TabModel. Notifications are
// routed to instances of this class via TabModelObserverJniBridge. See
// TabModelObserver.java for more details about individual notifications.
class TabModelObserver {
public:
TabModelObserver();
TabModelObserver(const TabModelObserver&) = delete;
TabModelObserver& operator=(const TabModelObserver&) = delete;
virtual ~TabModelObserver();
// Called when a |tab| is selected.
virtual void DidSelectTab(TabAndroid* tab, TabModel::TabSelectionType type);
// Called when a |tab| starts closing.
virtual void WillCloseTab(TabAndroid* tab);
// Called right before a |tab| has been destroyed.
virtual void OnFinishingTabClosure(TabAndroid* tab,
TabModel::TabClosingSource source);
// Called right before all |tabs| are destroyed.
virtual void OnFinishingMultipleTabClosure(
const std::vector<raw_ptr<TabAndroid, VectorExperimental>>& tabs,
bool canRestore);
// Called before a |tab| is added to the TabModel.
virtual void WillAddTab(TabAndroid* tab, TabModel::TabLaunchType type);
// Called after a |tab| has been added to the TabModel.
virtual void DidAddTab(TabAndroid* tab, TabModel::TabLaunchType type);
// Called after a |tab| has been moved from one position in the TabModel to
// another.
virtual void DidMoveTab(TabAndroid* tab, int new_index, int old_index);
// Called when a tab is pending closure (ie, the user has just closed it, but
// it can still be undone). At this point the |tab| has been removed from the
// TabModel.
virtual void TabPendingClosure(TabAndroid* tab,
TabModel::TabClosingSource source);
// Called when all |tabs| closure is undone.
virtual void OnTabCloseUndone(
const std::vector<raw_ptr<TabAndroid, VectorExperimental>>& tabs);
// Called when a |tab| closure is undone.
virtual void TabClosureUndone(TabAndroid* tab);
// Called when a |tab| closure is committed and can't be undone anymore.
virtual void TabClosureCommitted(TabAndroid* tab);
// Called when all |tabs| are pending closure.
virtual void AllTabsPendingClosure(
const std::vector<raw_ptr<TabAndroid, VectorExperimental>>& tabs);
// Called when an all tabs closure has been committed and can't be undone
// anymore.
virtual void AllTabsClosureCommitted();
// Called after a tab has been removed. At this point the tab is no longer in
// the TabModel.
virtual void TabRemoved(TabAndroid* tab);
};
#endif // CHROME_BROWSER_UI_ANDROID_TAB_MODEL_TAB_MODEL_OBSERVER_H_
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