| // Copyright (c) 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. |
| |
| #include "ui/views/widget/widget_deletion_observer.h" |
| |
| #include "ui/views/widget/widget.h" |
| |
| namespace views { |
| |
| WidgetDeletionObserver::WidgetDeletionObserver(Widget* widget) |
| : widget_(widget) { |
| if (widget_) |
| widget_->AddObserver(this); |
| } |
| |
| WidgetDeletionObserver::~WidgetDeletionObserver() { |
| CleanupWidget(); |
| } |
| |
| void WidgetDeletionObserver::OnWidgetDestroying(Widget* widget) { |
| CleanupWidget(); |
| } |
| |
| void WidgetDeletionObserver::CleanupWidget() { |
| if (widget_) { |
| widget_->RemoveObserver(this); |
| widget_ = NULL; |
| } |
| } |
| |
| } // namespace views |