1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef CHROME_BROWSER_UI_GTK_FOCUS_STORE_GTK_H_ 6 #define CHROME_BROWSER_UI_GTK_FOCUS_STORE_GTK_H_ 7 #pragma once 8 9 #include "base/basictypes.h" 10 11 typedef struct _GtkWidget GtkWidget; 12 13 class FocusStoreGtk { 14 public: 15 FocusStoreGtk(); 16 17 virtual ~FocusStoreGtk(); 18 19 GtkWidget* widget() const { return widget_; } 20 21 // Save the widget that is currently focused for |widget|'s toplevel (NOT 22 // |widget|). 23 void Store(GtkWidget* widget); 24 25 // Save |widget| as the focus widget. Call with NULL to clear |widget_|. 26 void SetWidget(GtkWidget* widget); 27 28 private: 29 // Disconnect the previous destroy handler (if any). 30 void DisconnectDestroyHandler(); 31 32 // The widget which last had focus. 33 GtkWidget* widget_; 34 35 // The widget for which we've stored focus might be destroyed by the time we 36 // want to restore focus. Thus we connect to the "destroy" signal on that 37 // widget. This is the ID for the destroy handler. 38 unsigned int destroy_handler_id_; 39 40 DISALLOW_COPY_AND_ASSIGN(FocusStoreGtk); 41 }; 42 43 #endif // CHROME_BROWSER_UI_GTK_FOCUS_STORE_GTK_H_ 44
