| // Copyright 2016 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_WIN_OSK_DISPLAY_MANAGER_H_ |
| #define UI_BASE_WIN_OSK_DISPLAY_MANAGER_H_ |
| |
| #include "base/memory/weak_ptr.h" |
| #include "base/observer_list.h" |
| #include "base/strings/string16.h" |
| #include "ui/base/ui_base_export.h" |
| #include "ui/gfx/geometry/rect.h" |
| |
| namespace ui { |
| |
| class OnScreenKeyboardDetector; |
| class OnScreenKeyboardObserver; |
| |
| // This class provides functionality to display the on screen keyboard on |
| // Windows 8+. It optionally notifies observers that the OSK is displayed, |
| // hidden, etc. |
| class UI_BASE_EXPORT OnScreenKeyboardDisplayManager { |
| public: |
| static OnScreenKeyboardDisplayManager* GetInstance(); |
| |
| ~OnScreenKeyboardDisplayManager(); |
| |
| // Functions to display and dismiss the keyboard. |
| // The optional |observer| parameter allows callers to be notified when the |
| // keyboard is displayed, dismissed, etc. |
| bool DisplayVirtualKeyboard(OnScreenKeyboardObserver* observer); |
| // When the keyboard is dismissed, the registered observer if any is removed |
| // after notifying it. |
| bool DismissVirtualKeyboard(); |
| |
| // Removes a registered observer. |
| void RemoveObserver(OnScreenKeyboardObserver* observer); |
| |
| // Returns the path of the on screen keyboard exe (TabTip.exe) in the |
| // |osk_path| parameter. |
| // Returns true on success. |
| bool GetOSKPath(base::string16* osk_path); |
| |
| private: |
| OnScreenKeyboardDisplayManager(); |
| |
| std::unique_ptr<OnScreenKeyboardDetector> keyboard_detector_; |
| |
| // The location of TabTip.exe. |
| base::string16 osk_path_; |
| |
| DISALLOW_COPY_AND_ASSIGN(OnScreenKeyboardDisplayManager); |
| }; |
| |
| } // namespace ui |
| |
| #endif // UI_BASE_WIN_OSK_DISPLAY_MANAGER_H_ |