Move chrome/browser/gtk to chrome/browser/ui/gtk

chrome/browser/ui/gtk/focus_store_gtk.h

+// Copyright (c) 2010 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_GTK_FOCUS_STORE_GTK_H_
+#define CHROME_BROWSER_UI_GTK_FOCUS_STORE_GTK_H_
+#pragma once
+
+#include "base/basictypes.h"
+
+typedef struct _GtkWidget GtkWidget;
+
+class FocusStoreGtk {
+ public:
+  FocusStoreGtk();
+
+  virtual ~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);
+};
+
+#endif  // CHROME_BROWSER_UI_GTK_FOCUS_STORE_GTK_H_