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// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef UI_BASE_IME_WIN_INPUT_METHOD_WIN_TSF_H_
#define UI_BASE_IME_WIN_INPUT_METHOD_WIN_TSF_H_
#include <windows.h>
#include "base/component_export.h"
#include "ui/base/ime/win/input_method_win_base.h"
namespace ui {
class TSFEventRouter;
// An InputMethod implementation based on Windows TSF API.
class COMPONENT_EXPORT(UI_BASE_IME_WIN) InputMethodWinTSF
: public InputMethodWinBase {
public:
InputMethodWinTSF(ImeKeyEventDispatcher* ime_key_event_dispatcher,
HWND attached_window_handle);
InputMethodWinTSF(const InputMethodWinTSF&) = delete;
InputMethodWinTSF& operator=(const InputMethodWinTSF&) = delete;
~InputMethodWinTSF() override;
// Overridden from InputMethod:
void OnFocus() override;
void OnBlur() override;
bool OnUntranslatedIMEMessage(const CHROME_MSG event,
NativeEventResult* result) override;
void OnTextInputTypeChanged(TextInputClient* client) override;
void OnCaretBoundsChanged(const TextInputClient* client) override;
void CancelComposition(const TextInputClient* client) override;
void DetachTextInputClient(TextInputClient* client) override;
void OnInputLocaleChanged() override;
bool IsInputLocaleCJK() const override;
bool IsCandidatePopupOpen() const override;
void OnUrlChanged() override;
// Overridden from InputMethodBase:
void OnWillChangeFocusedClient(TextInputClient* focused_before,
TextInputClient* focused) override;
void OnDidChangeFocusedClient(TextInputClient* focused_before,
TextInputClient* focused) override;
private:
void ConfirmCompositionText();
class TSFEventObserver;
// TSF event router and observer.
std::unique_ptr<TSFEventObserver> tsf_event_observer_;
std::unique_ptr<TSFEventRouter> tsf_event_router_;
};
} // namespace ui
#endif // UI_BASE_IME_WIN_INPUT_METHOD_WIN_TSF_H_
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