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// Copyright 2013 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 WIN8_METRO_DRIVER_IME_TEXT_SERVICE_DELEGATE_H_
#define WIN8_METRO_DRIVER_IME_TEXT_SERVICE_DELEGATE_H_
#include <vector>
#include "base/basictypes.h"
#include "base/strings/string16.h"
namespace metro_viewer {
struct UnderlineInfo;
}
namespace metro_driver {
// A delegate which works together with virtual text service.
// Objects that implement this delegate will receive notifications from a
// virtual text service whenever an IME updates the composition or commits text.
class TextServiceDelegate {
public:
virtual ~TextServiceDelegate() {}
// Called when on-going composition is updated. An empty |text| represents
// that the composition is canceled.
virtual void OnCompositionChanged(
const string16& text,
int32 selection_start,
int32 selection_end,
const std::vector<metro_viewer::UnderlineInfo>& underlines) = 0;
// Called when |text| is committed.
virtual void OnTextCommitted(const string16& text) = 0;
};
} // namespace metro_driver
#endif // WIN8_METRO_DRIVER_IME_TEXT_SERVICE_DELEGATE_H_
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