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// Copyright (c) 2012 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_COMPOSITION_TEXT_H_
#define UI_BASE_IME_COMPOSITION_TEXT_H_
#include "base/string16.h"
#include "ui/base/ime/composition_underline.h"
#include "ui/base/range/range.h"
#include "ui/base/ui_export.h"
namespace ui {
// A struct represents the status of an ongoing composition text.
struct UI_EXPORT CompositionText {
CompositionText();
~CompositionText();
bool operator==(const CompositionText& rhs) const {
if ((this->text != rhs.text) ||
(this->selection != rhs.selection) ||
(this->underlines.size() != rhs.underlines.size()))
return false;
for (size_t i = 0; i < this->underlines.size(); ++i) {
if (this->underlines[i] != rhs.underlines[i])
return false;
}
return true;
}
bool operator!=(const CompositionText& rhs) const {
return !(*this == rhs);
}
void Clear();
// Content of the composition text.
string16 text;
// Underline information of the composition text.
// They must be sorted in ascending order by their start_offset and cannot be
// overlapped with each other.
CompositionUnderlines underlines;
// Selection range in the composition text. It represents the caret position
// if the range length is zero. Usually it's used for representing the target
// clause (on Windows). Gtk doesn't have such concept, so background color is
// usually used instead.
Range selection;
};
} // namespace ui
#endif // UI_BASE_IME_COMPOSITION_TEXT_H_
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