| // Copyright 2014 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_IME_TEXT_INPUT_FOCUS_MANAGER_H_ |
| #define UI_BASE_IME_TEXT_INPUT_FOCUS_MANAGER_H_ |
| |
| #include "base/macros.h" |
| #include "base/threading/thread_checker.h" |
| #include "ui/base/ui_base_export.h" |
| |
| template <typename T> struct DefaultSingletonTraits; |
| |
| namespace ui { |
| |
| class TextInputClient; |
| |
| // Manages the focused TextInputClient across windows and their contents. |
| class UI_BASE_EXPORT TextInputFocusManager { |
| public: |
| static TextInputFocusManager* GetInstance(); |
| |
| // Returns the currently focused text input client or NULL. |
| TextInputClient* GetFocusedTextInputClient(); |
| |
| // Changes the text input focus to |text_input_client|. |
| void FocusTextInputClient(TextInputClient* text_input_client); |
| |
| // Removes the text input focus from |text_input_client|. If |
| // |text_input_client| was not focused, does nothing. |
| void BlurTextInputClient(TextInputClient* text_input_client); |
| |
| private: |
| friend struct DefaultSingletonTraits<TextInputFocusManager>; |
| |
| TextInputFocusManager(); |
| ~TextInputFocusManager(); |
| |
| TextInputClient* focused_text_input_client_; |
| base::ThreadChecker thread_checker_; |
| |
| DISALLOW_COPY_AND_ASSIGN(TextInputFocusManager); |
| }; |
| |
| } // namespace ui |
| |
| #endif // UI_BASE_IME_TEXT_INPUT_FOCUS_MANAGER_H_ |