Flutter Linux Embedder
text_editing_delta.h
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1 // Copyright 2013 The Flutter 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 FLUTTER_SHELL_PLATFORM_COMMON_TEXT_EDITING_DELTA_H_
6 #define FLUTTER_SHELL_PLATFORM_COMMON_TEXT_EDITING_DELTA_H_
7 
8 #include <string>
9 
10 #include "flutter/fml/string_conversion.h"
12 
13 namespace flutter {
14 
15 /// A change in the state of an input field.
17  TextEditingDelta(const std::u16string& text_before_change,
18  const TextRange& range,
19  const std::u16string& text);
20 
21  TextEditingDelta(const std::string& text_before_change,
22  const TextRange& range,
23  const std::string& text);
24 
25  explicit TextEditingDelta(const std::u16string& text);
26 
27  explicit TextEditingDelta(const std::string& text);
28 
29  virtual ~TextEditingDelta() = default;
30 
31  /// Get the old_text_ value.
32  ///
33  /// All strings are stored as UTF16 but converted to UTF8 when accessed.
34  std::string old_text() const { return fml::Utf16ToUtf8(old_text_); }
35 
36  /// Get the delta_text value.
37  ///
38  /// All strings are stored as UTF16 but converted to UTF8 when accessed.
39  std::string delta_text() const { return fml::Utf16ToUtf8(delta_text_); }
40 
41  /// Get the delta_start_ value.
42  int delta_start() const { return delta_start_; }
43 
44  /// Get the delta_end_ value.
45  int delta_end() const { return delta_end_; }
46 
47  bool operator==(const TextEditingDelta& rhs) const {
48  return old_text_ == rhs.old_text_ && delta_text_ == rhs.delta_text_ &&
49  delta_start_ == rhs.delta_start_ && delta_end_ == rhs.delta_end_;
50  }
51 
52  bool operator!=(const TextEditingDelta& rhs) const { return !(*this == rhs); }
53 
54  TextEditingDelta(const TextEditingDelta& other) = default;
55 
56  TextEditingDelta& operator=(const TextEditingDelta& other) = default;
57 
58  private:
59  std::u16string old_text_;
60  std::u16string delta_text_;
61  int delta_start_;
62  int delta_end_;
63 
64  void set_old_text(const std::u16string& old_text) { old_text_ = old_text; }
65 
66  void set_delta_text(const std::u16string& delta_text) {
67  delta_text_ = delta_text;
68  }
69 
70  void set_delta_start(int delta_start) { delta_start_ = delta_start; }
71 
72  void set_delta_end(int delta_end) { delta_end_ = delta_end; }
73 };
74 
75 } // namespace flutter
76 
77 #endif // FLUTTER_SHELL_PLATFORM_COMMON_TEXT_EDITING_DELTA_H_
text_range.h
flutter::TextEditingDelta::delta_start
int delta_start() const
Get the delta_start_ value.
Definition: text_editing_delta.h:42
flutter::TextEditingDelta::TextEditingDelta
TextEditingDelta(const std::u16string &text_before_change, const TextRange &range, const std::u16string &text)
Definition: text_editing_delta.cc:11
flutter::TextEditingDelta::operator!=
bool operator!=(const TextEditingDelta &rhs) const
Definition: text_editing_delta.h:52
flutter::TextEditingDelta::operator=
TextEditingDelta & operator=(const TextEditingDelta &other)=default
flutter::TextRange
Definition: text_range.h:19
flutter::TextEditingDelta::delta_text
std::string delta_text() const
Definition: text_editing_delta.h:39
flutter::TextEditingDelta::old_text
std::string old_text() const
Definition: text_editing_delta.h:34
flutter
Definition: accessibility_bridge.cc:14
flutter::TextEditingDelta::~TextEditingDelta
virtual ~TextEditingDelta()=default
flutter::TextEditingDelta
A change in the state of an input field.
Definition: text_editing_delta.h:16
flutter::TextEditingDelta::operator==
bool operator==(const TextEditingDelta &rhs) const
Definition: text_editing_delta.h:47
flutter::TextEditingDelta::delta_end
int delta_end() const
Get the delta_end_ value.
Definition: text_editing_delta.h:45