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| 1 // Copyright 2014 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 THIRD_PARTY_LIBADDRESSINPUT_CHROMIUM_INPUT_SUGGESTER_H_ | |
| 6 #define THIRD_PARTY_LIBADDRESSINPUT_CHROMIUM_INPUT_SUGGESTER_H_ | |
| 7 | |
| 8 #include <stdint.h> | |
| 9 #include <map> | |
| 10 #include <vector> | |
| 11 | |
| 12 #include "base/basictypes.h" | |
| 13 #include "base/memory/scoped_ptr.h" | |
| 14 #include "third_party/icu/source/i18n/unicode/coll.h" | |
| 15 #include "third_party/libaddressinput/src/cpp/include/libaddressinput/address_fi
eld.h" | |
| 16 #include "third_party/libaddressinput/src/cpp/include/libaddressinput/address_in
put_helper.h" | |
| 17 #include "third_party/libaddressinput/src/cpp/include/libaddressinput/address_va
lidator.h" | |
| 18 #include "third_party/libaddressinput/src/cpp/include/libaddressinput/region_dat
a_builder.h" | |
| 19 | |
| 20 namespace i18n { | |
| 21 namespace addressinput { | |
| 22 class PreloadSupplier; | |
| 23 class RegionData; | |
| 24 struct AddressData; | |
| 25 } | |
| 26 } | |
| 27 | |
| 28 namespace autofill { | |
| 29 | |
| 30 // Suggests address completions for a partially entered address from the user. | |
| 31 class InputSuggester { | |
| 32 public: | |
| 33 // Does not take ownership of |supplier|, which should not be NULL. | |
| 34 explicit InputSuggester(::i18n::addressinput::PreloadSupplier* supplier); | |
| 35 ~InputSuggester(); | |
| 36 | |
| 37 // Fills in |suggestions| for the partially typed in |user_input|, assuming | |
| 38 // the user is typing in the |focused_field|. If the number of |suggestions| | |
| 39 // is over the |suggestion_limit|, then returns no |suggestions| at all. | |
| 40 // | |
| 41 // Sample user input 1: | |
| 42 // country code = "US" | |
| 43 // postal code = "90066" | |
| 44 // focused field = POSTAL_CODE | |
| 45 // suggestions limit = 1 | |
| 46 // Suggestion: | |
| 47 // [{administrative_area: "CA"}] | |
| 48 // | |
| 49 // Sample user input 2: | |
| 50 // country code = "CN" | |
| 51 // dependent locality = "Zongyang" | |
| 52 // focused field = DEPENDENT_LOCALITY | |
| 53 // suggestions limit = 10 | |
| 54 // Suggestion: | |
| 55 // [{dependent_locality: "Zongyang Xian", | |
| 56 // locality: "Anqing Shi", | |
| 57 // administrative_area: "Anhui Sheng"}] | |
| 58 // | |
| 59 // Builds the index for generating suggestions lazily. | |
| 60 // | |
| 61 // The |suggestions| parameter should not be NULL. The |focused_field| | |
| 62 // parameter should be either POSTAL_CODE or between ADMIN_AREA and | |
| 63 // DEPENDENT_LOCALITY inclusively. | |
| 64 void GetSuggestions( | |
| 65 const ::i18n::addressinput::AddressData& user_input, | |
| 66 ::i18n::addressinput::AddressField focused_field, | |
| 67 size_t suggestion_limit, | |
| 68 std::vector< ::i18n::addressinput::AddressData>* suggestions); | |
| 69 | |
| 70 private: | |
| 71 class SubRegionData; | |
| 72 | |
| 73 // Canonicalizes strings for case and diacritic insensitive comparison. | |
| 74 class StringCanonicalizer { | |
| 75 public: | |
| 76 // Initializes the canonicalizer. This is slow, so avoid calling it more | |
| 77 // often than necessary. | |
| 78 StringCanonicalizer(); | |
| 79 ~StringCanonicalizer(); | |
| 80 | |
| 81 // Returns a 0-terminated canonical version of the string that can be used | |
| 82 // for comparing strings regardless of diacritics and capitalization. | |
| 83 // Canonicalize("Texas") == Canonicalize("T\u00E9xas"); | |
| 84 // Canonicalize("Texas") == Canonicalize("teXas"); | |
| 85 // Canonicalize("Texas") != Canonicalize("California"); | |
| 86 // | |
| 87 // The output is not human-readable. | |
| 88 // Canonicalize("Texas") != "Texas"; | |
| 89 // | |
| 90 // The |original| parameter should not be empty. | |
| 91 const std::vector<uint8_t>& Canonicalize(const std::string& original) const; | |
| 92 | |
| 93 private: | |
| 94 int32_t buffer_size() const; | |
| 95 | |
| 96 mutable std::vector<uint8_t> buffer_; | |
| 97 scoped_ptr<icu::Collator> collator_; | |
| 98 | |
| 99 DISALLOW_COPY_AND_ASSIGN(StringCanonicalizer); | |
| 100 }; | |
| 101 | |
| 102 // The method to be invoked by |validated_| callback. | |
| 103 void Validated(bool success, | |
| 104 const ::i18n::addressinput::AddressData&, | |
| 105 const ::i18n::addressinput::FieldProblemMap&); | |
| 106 | |
| 107 // Data source for region data. | |
| 108 ::i18n::addressinput::RegionDataBuilder region_data_builder_; | |
| 109 | |
| 110 // Suggests sub-regions based on postal code. | |
| 111 const ::i18n::addressinput::AddressInputHelper input_helper_; | |
| 112 | |
| 113 // Verifies that suggested sub-regions match the postal code. | |
| 114 ::i18n::addressinput::AddressValidator validator_; | |
| 115 | |
| 116 // The callback for |validator_| to invoke when validation finishes. | |
| 117 const scoped_ptr<const ::i18n::addressinput::AddressValidator::Callback> | |
| 118 validated_; | |
| 119 | |
| 120 // A mapping from a COUNTRY level region to a collection of all of its | |
| 121 // sub-regions along with metadata used to construct suggestions. | |
| 122 std::map<const ::i18n::addressinput::RegionData*, SubRegionData> sub_regions_; | |
| 123 | |
| 124 // Canonicalizes strings for case and diacritic insensitive search of | |
| 125 // sub-region names. | |
| 126 StringCanonicalizer canonicalizer_; | |
| 127 | |
| 128 DISALLOW_COPY_AND_ASSIGN(InputSuggester); | |
| 129 }; | |
| 130 | |
| 131 } // namespace autofill | |
| 132 | |
| 133 #endif // THIRD_PARTY_LIBADDRESSINPUT_CHROMIUM_INPUT_SUGGESTER_H_ | |
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Chromium Code Reviews
Issue 387123004:
Revert 282726 "Reland "Use upstream libaddressinput in Chrome."" (Closed)
Base URL: svn://svn.chromium.org/chrome/