1 // Copyright (c) 2012 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 UI_VIEWS_CONTROLS_COMBOBOX_COMBOBOX_LISTENER_H_ 6 #define UI_VIEWS_CONTROLS_COMBOBOX_COMBOBOX_LISTENER_H_ 7 8 #include "ui/views/views_export.h" 9 10 namespace views { 11 12 class Combobox; 13 14 // Interface used to notify consumers when something interesting happens to a 15 // Combobox. 16 class VIEWS_EXPORT ComboboxListener { 17 public: 18 // Invoked when the user does the appropriate gesture that some action should 19 // be performed. For both STYLE_NORMAL and STYLE_ACTION this is invoked if the 20 // user clicks on the menu button and then clicks an item. For STYLE_NORMAL 21 // this is also invoked when the menu is not showing and the does a gesture to 22 // change the selection (for example, presses the home or end keys). This is 23 // not invoked when the menu is shown and the user changes the selection 24 // without closing the menu. 25 virtual void OnPerformAction(Combobox* combobox) = 0; 26 27 protected: 28 virtual ~ComboboxListener() {} 29 }; 30 31 } // namespace views 32 33 #endif // UI_VIEWS_CONTROLS_COMBOBOX_COMBOBOX_LISTENER_H_ 34
