| // Copyright 2014 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_NATIVE_WINDOW_TRACKER_H_ |
| #define CHROME_BROWSER_UI_NATIVE_WINDOW_TRACKER_H_ |
| |
| #include <memory> |
| |
| #include "ui/gfx/native_widget_types.h" |
| |
| // An observer which detects when a gfx::NativeWindow is closed. |
| class NativeWindowTracker { |
| public: |
| virtual ~NativeWindowTracker() {} |
| |
| static std::unique_ptr<NativeWindowTracker> Create(gfx::NativeWindow window); |
| |
| // Returns true if the native window passed to Create() has been closed. |
| virtual bool WasNativeWindowClosed() const = 0; |
| }; |
| |
| #endif // CHROME_BROWSER_UI_NATIVE_WINDOW_TRACKER_H_ |