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| 1 // Copyright (c) 2013 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 WIN8_METRO_DRIVER_IME_TEXT_SERVICE_DELEGATE_H_ |
| 6 #define WIN8_METRO_DRIVER_IME_TEXT_SERVICE_DELEGATE_H_ |
| 7 |
| 8 #include <vector> |
| 9 |
| 10 #include "base/basictypes.h" |
| 11 #include "base/strings/string16.h" |
| 12 |
| 13 namespace metro_viewer { |
| 14 struct UnderlineInfo; |
| 15 } |
| 16 |
| 17 namespace metro_driver { |
| 18 |
| 19 // A delegate which works together with virtual text service. |
| 20 // Objects that implement this delegate will receive notifications from a |
| 21 // virtual text service whenever an IME updates the composition or commits text. |
| 22 class TextServiceDelegate { |
| 23 public: |
| 24 virtual ~TextServiceDelegate() {} |
| 25 |
| 26 // Called when on-going composition is updated. An empty |text| represents |
| 27 // that the composition is canceled. |
| 28 virtual void OnCompositionChanged( |
| 29 const string16& text, |
| 30 int32 selection_start, |
| 31 int32 selection_end, |
| 32 const std::vector<metro_viewer::UnderlineInfo>& underlines) = 0; |
| 33 |
| 34 // Called when |text| is committed. |
| 35 virtual void OnTextCommitted(const string16& text) = 0; |
| 36 }; |
| 37 |
| 38 } // namespace metro_driver |
| 39 |
| 40 #endif // WIN8_METRO_DRIVER_IME_TEXT_SERVICE_DELEGATE_H_ |
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