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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_CHROMEOS_IME_CNADIDATE_WINDOW_HANDLER_INTERFACE_H_
#define UI_BASE_IME_CHROMEOS_IME_CNADIDATE_WINDOW_HANDLER_INTERFACE_H_
#include <stdint.h>
#include "base/strings/string16.h"
#include "ui/base/ime/ui_base_ime_export.h"
namespace gfx {
class Rect;
} // namespace gfx
namespace ui {
class CandidateWindow;
}
namespace chromeos {
// A interface to handle the candidate window related method call.
class UI_BASE_IME_EXPORT IMECandidateWindowHandlerInterface {
public:
virtual ~IMECandidateWindowHandlerInterface() {}
// Called when the IME updates the lookup table.
virtual void UpdateLookupTable(const ui::CandidateWindow& candidate_window,
bool visible) = 0;
// Called when the IME updates the preedit text. The |text| is given in
// UTF-16 encoding.
virtual void UpdatePreeditText(const base::string16& text,
uint32_t cursor_pos,
bool visible) = 0;
// Called when the application changes its caret bounds.
virtual void SetCursorBounds(const gfx::Rect& cursor_bounds,
const gfx::Rect& composition_head) = 0;
// Called when the text field's focus state is changed.
// |is_focused| is true when the text field gains the focus.
virtual void FocusStateChanged(bool is_focused) {}
protected:
IMECandidateWindowHandlerInterface() {}
};
} // namespace chromeos
#endif // UI_BASE_IME_CHROMEOS_IME_CNADIDATE_WINDOW_HANDLER_INTERFACE_H_
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