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// Copyright (c) 2011 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 UI_BASE_GTK_FOCUS_STORE_GTK_H_
#define UI_BASE_GTK_FOCUS_STORE_GTK_H_
#include "base/basictypes.h"
#include "ui/base/ui_export.h"
typedef struct _GtkWidget GtkWidget;
namespace ui {
class UI_EXPORT FocusStoreGtk {
public:
FocusStoreGtk();
~FocusStoreGtk();
GtkWidget* widget() const { return widget_; }
// Save the widget that is currently focused for |widget|'s toplevel (NOT
// |widget|).
void Store(GtkWidget* widget);
// Save |widget| as the focus widget. Call with NULL to clear |widget_|.
void SetWidget(GtkWidget* widget);
private:
// Disconnect the previous destroy handler (if any).
void DisconnectDestroyHandler();
// The widget which last had focus.
GtkWidget* widget_;
// The widget for which we've stored focus might be destroyed by the time we
// want to restore focus. Thus we connect to the "destroy" signal on that
// widget. This is the ID for the destroy handler.
unsigned int destroy_handler_id_;
DISALLOW_COPY_AND_ASSIGN(FocusStoreGtk);
};
} // namespace ui
#endif // UI_BASE_GTK_FOCUS_STORE_GTK_H_