1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef UI_BASE_IME_COMPOSITION_TEXT_H_ 6 #define UI_BASE_IME_COMPOSITION_TEXT_H_ 7 8 #include "base/strings/string16.h" 9 #include "ui/base/ime/composition_underline.h" 10 #include "ui/base/ui_base_export.h" 11 #include "ui/gfx/range/range.h" 12 13 namespace ui { 14 15 // A struct represents the status of an ongoing composition text. 16 struct UI_BASE_EXPORT CompositionText { 17 CompositionText(); 18 ~CompositionText(); 19 20 bool operator==(const CompositionText& rhs) const { 21 if ((this->text != rhs.text) || 22 (this->selection != rhs.selection) || 23 (this->underlines.size() != rhs.underlines.size())) 24 return false; 25 for (size_t i = 0; i < this->underlines.size(); ++i) { 26 if (this->underlines[i] != rhs.underlines[i]) 27 return false; 28 } 29 return true; 30 } 31 32 bool operator!=(const CompositionText& rhs) const { 33 return !(*this == rhs); 34 } 35 36 void Clear(); 37 38 // Content of the composition text. 39 base::string16 text; 40 41 // Underline information of the composition text. 42 // They must be sorted in ascending order by their start_offset and cannot be 43 // overlapped with each other. 44 CompositionUnderlines underlines; 45 46 // Selection range in the composition text. It represents the caret position 47 // if the range length is zero. Usually it's used for representing the target 48 // clause (on Windows). Gtk doesn't have such concept, so background color is 49 // usually used instead. 50 gfx::Range selection; 51 }; 52 53 } // namespace ui 54 55 #endif // UI_BASE_IME_COMPOSITION_TEXT_H_ 56
