| // Copyright 2013 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_VIEWS_TABS_TAB_STRIP_OBSERVER_H_ |
| #define CHROME_BROWSER_UI_VIEWS_TABS_TAB_STRIP_OBSERVER_H_ |
| |
| #include "chrome/browser/ui/views/chrome_views_export.h" |
| |
| class TabStrip; |
| |
| //////////////////////////////////////////////////////////////////////////////// |
| // |
| // TabStripObserver |
| // |
| // Objects implement this interface when they wish to be notified of changes |
| // to the TabStrip. |
| // |
| // Register your TabStripObserver with the TabStrip using its |
| // Add/RemoveObserver methods. |
| // |
| //////////////////////////////////////////////////////////////////////////////// |
| class CHROME_VIEWS_EXPORT TabStripObserver { |
| public: |
| // Sent when a new tab has been added at |index|. |
| virtual void OnTabAdded(int index); |
| |
| // Sent when the tab at |from_index| has been moved to |to_index|. |
| virtual void OnTabMoved(int from_index, int to_index); |
| |
| // Sent when the tab at |index| has been removed. |
| virtual void OnTabRemoved(int index); |
| |
| protected: |
| virtual ~TabStripObserver() {} |
| }; |
| |
| #endif // CHROME_BROWSER_UI_VIEWS_TABS_TAB_STRIP_OBSERVER_H_ |
