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// 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_
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