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// Copyright 2014 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_ASH_IME_CANDIDATE_WINDOW_HANDLER_INTERFACE_H_
#define UI_BASE_IME_ASH_IME_CANDIDATE_WINDOW_HANDLER_INTERFACE_H_
#include <stdint.h>
#include <string>
#include "base/component_export.h"
namespace gfx {
class Rect;
} // namespace gfx
namespace ui {
class CandidateWindow;
} // namespace ui
namespace ash {
// A interface to handle the candidate window related method call.
class COMPONENT_EXPORT(UI_BASE_IME_ASH) IMECandidateWindowHandlerInterface {
public:
virtual ~IMECandidateWindowHandlerInterface() = default;
virtual void HideLookupTable() = 0;
// Called when the IME updates the lookup table.
// This will also show the lookup table if it is not already
// showing.
virtual void UpdateLookupTable(
const ui::CandidateWindow& candidate_window) = 0;
// Called when the IME updates the preedit text. The |text| is given in
// UTF-16 encoding.
virtual void UpdatePreeditText(const std::u16string& text,
uint32_t cursor_pos,
bool visible) = 0;
// Called when the application changes its caret or composition bounds.
virtual void SetCursorAndCompositionBounds(
const gfx::Rect& cursor_bounds,
const gfx::Rect& composition_bounds) = 0;
// Gets the cursor bounds that was set by |SetCursorAndCompositionBounds|
// method.
virtual gfx::Rect GetCursorBounds() const = 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() = default;
};
} // namespace ash
#endif // UI_BASE_IME_ASH_IME_CANDIDATE_WINDOW_HANDLER_INTERFACE_H_
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