text: // 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 <stddef.h>
  
  #include "base/component_export.h"
  #include "base/strings/string16.h"
  #include "ui/base/ime/ime_text_span.h"
  #include "ui/gfx/range/range.h"
  
  namespace ui {
  
  // A struct represents the status of an ongoing composition text.
  struct COMPONENT_EXPORT(UI_BASE_IME_TYPES) CompositionText {
    CompositionText();
    CompositionText(const CompositionText& other);
    ~CompositionText();
  
    bool operator==(const CompositionText& rhs) const {
      if ((this->text != rhs.text) || (this->selection != rhs.selection) ||
          (this->ime_text_spans.size() != rhs.ime_text_spans.size()))
        return false;
      for (size_t i = 0; i < this->ime_text_spans.size(); ++i) {
        if (this->ime_text_spans[i] != rhs.ime_text_spans[i])
          return false;
      }
      return true;
    }
  
    bool operator!=(const CompositionText& rhs) const {
      return !(*this == rhs);
    }
  
    // Content of the composition text.
    base::string16 text;
  
    // ImeTextSpan information for the composition text.
    ImeTextSpans ime_text_spans;
  
    // 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.
    gfx::Range selection;
  };
  
  }  // namespace ui
  
  #endif  // UI_BASE_IME_COMPOSITION_TEXT_H_
  