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1 // Copyright 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 COMPONENTS_AUTOFILL_CORE_BROWSER_PHONE_NUMBER_I18N_H_
6 #define COMPONENTS_AUTOFILL_CORE_BROWSER_PHONE_NUMBER_I18N_H_
7 
8 #include <string>
9 #include <vector>
10 
11 #include "base/compiler_specific.h"
12 #include "base/memory/scoped_ptr.h"
13 #include "base/strings/string16.h"
14 
15 namespace i18n {
16 namespace phonenumbers {
17 class PhoneNumber;
18 }
19 }
20 
21 namespace autofill {
22 
23 // Utilities to process, normalize and compare international phone numbers.
24 namespace i18n {
25 
26 // Most of the following functions require |region| to operate. The |region| is
27 // a ISO 3166 standard code ("US" for USA, "CZ" for Czech Republic, etc.).
28 
29 // Parses the number stored in |value| as a phone number interpreted in the
30 // given |default_region|, and stores the results into the remaining arguments.
31 // The |default_region| should be a 2-letter country code.  |inferred_region| is
32 // set to the actual region of the number (which may be different than
33 // |default_region| if |value| has an international country code, for example).
34 // This is an internal function, exposed in the header file so that it can be
35 // tested.
36 bool ParsePhoneNumber(
37     const base::string16& value,
38     const std::string& default_region,
39     base::string16* country_code,
40     base::string16* city_code,
41     base::string16* number,
42     std::string* inferred_region,
43     ::i18n::phonenumbers::PhoneNumber* i18n_number) WARN_UNUSED_RESULT;
44 
45 // Normalizes phone number, by changing digits in the extended fonts
46 // (such as \xFF1x) into '0'-'9'. Also strips out non-digit characters.
47 base::string16 NormalizePhoneNumber(const base::string16& value,
48                                     const std::string& default_region);
49 
50 // Constructs whole phone number from parts.
51 // |city_code| - area code, could be empty.
52 // |country_code| - country code, could be empty.
53 // |number| - local number, should not be empty.
54 // |region| - current region, the parsing is based on.
55 // |whole_number| - constructed whole number.
56 // Separator characters are stripped before parsing the digits.
57 // Returns true if parsing was successful, false otherwise.
58 bool ConstructPhoneNumber(const base::string16& country_code,
59                           const base::string16& city_code,
60                           const base::string16& number,
61                           const std::string& default_region,
62                           base::string16* whole_number) WARN_UNUSED_RESULT;
63 
64 // Returns true if |number_a| and |number_b| parse to the same phone number in
65 // the given |region|.
66 bool PhoneNumbersMatch(const base::string16& number_a,
67                        const base::string16& number_b,
68                        const std::string& region,
69                        const std::string& app_locale);
70 
71 // The cached phone number, does parsing only once, improves performance.
72 class PhoneObject {
73  public:
74   PhoneObject(const base::string16& number,
75               const std::string& default_region);
76   PhoneObject(const PhoneObject&);
77   PhoneObject();
78   ~PhoneObject();
79 
region()80   const std::string& region() const { return region_; }
81 
country_code()82   const base::string16& country_code() const { return country_code_; }
city_code()83   const base::string16& city_code() const { return city_code_; }
number()84   const base::string16& number() const { return number_; }
85 
86   const base::string16& GetFormattedNumber() const;
87   base::string16 GetNationallyFormattedNumber() const;
88   const base::string16& GetWholeNumber() const;
89 
90   PhoneObject& operator=(const PhoneObject& other);
91 
IsValidNumber()92   bool IsValidNumber() const { return i18n_number_ != NULL; }
93 
94  private:
95   // The region code for this phone number, inferred during parsing.
96   std::string region_;
97 
98   // The parsed number and its components.
99   //
100   scoped_ptr< ::i18n::phonenumbers::PhoneNumber> i18n_number_;
101   base::string16 city_code_;
102   base::string16 country_code_;
103   base::string16 number_;
104 
105   // Pretty printed version of the whole number, or empty if parsing failed.
106   // Set on first request.
107   mutable base::string16 formatted_number_;
108 
109   // The whole number, normalized to contain only digits if possible.
110   // Set on first request.
111   mutable base::string16 whole_number_;
112 };
113 
114 }  // namespace i18n
115 }  // namespace autofill
116 
117 #endif  // COMPONENTS_AUTOFILL_CORE_BROWSER_PHONE_NUMBER_I18N_H_
118