src/third_party/libaddressinput/src/cpp/src/address_ui.cc

   1 // Copyright (C) 2013 Google Inc.
   2 //
   3 // Licensed under the Apache License, Version 2.0 (the "License");
   4 // you may not use this file except in compliance with the License.
   5 // You may obtain a copy of the License at
   6 //
   7 // http://www.apache.org/licenses/LICENSE-2.0
   8 //
   9 // Unless required by applicable law or agreed to in writing, software
  10 // distributed under the License is distributed on an "AS IS" BASIS,
  11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12 // See the License for the specific language governing permissions and
  13 // limitations under the License.
  14
  15 #include <libaddressinput/address_ui.h>
  16
  17 #include <libaddressinput/address_field.h>
  18 #include <libaddressinput/address_ui_component.h>
  19 #include <libaddressinput/localization.h>
  20
  21 #include <cassert>
  22 #include <cstddef>
  23 #include <set>
  24 #include <string>
  25 #include <vector>
  26
  27 #include "format_element.h"
  28 #include "grit.h"
  29 #include "language.h"
  30 #include "messages.h"
  31 #include "region_data_constants.h"
  32 #include "rule.h"
  33
  34 namespace i18n {
  35 namespace addressinput {
  36
  37 namespace {
  38
  39 std::string GetLabelForField(const Localization& localization,
  40                              AddressField field,
  41                              int admin_area_name_message_id,
  42                              int postal_code_name_message_id) {
  43   int messageId;
  44   switch (field) {
  45     case SORTING_CODE:
  46       // This needs no translation as it's used only in one locale.
  47       return "CEDEX";
  48     case COUNTRY:
  49       messageId = IDS_LIBADDRESSINPUT_COUNTRY_OR_REGION_LABEL;
  50       break;
  51     case ADMIN_AREA:
  52       messageId = admin_area_name_message_id;
  53       break;
  54     case LOCALITY:
  55       messageId = IDS_LIBADDRESSINPUT_LOCALITY_LABEL;
  56       break;
  57     case DEPENDENT_LOCALITY:
  58       messageId = IDS_LIBADDRESSINPUT_DISTRICT;
  59       break;
  60     case POSTAL_CODE:
  61       messageId = postal_code_name_message_id;
  62       break;
  63     case STREET_ADDRESS:
  64       messageId = IDS_LIBADDRESSINPUT_ADDRESS_LINE_1_LABEL;
  65       break;
  66     case ORGANIZATION:
  67       messageId = IDS_LIBADDRESSINPUT_ORGANIZATION_LABEL;
  68       break;
  69     case RECIPIENT:
  70       messageId = IDS_LIBADDRESSINPUT_RECIPIENT_LABEL;
  71       break;
  72     default:
  73       messageId = INVALID_MESSAGE_ID;
  74   }
  75   return localization.GetString(messageId);
  76 }
  77
  78 }  // namespace
  79
  80 const std::vector<std::string>& GetRegionCodes() {
  81   return RegionDataConstants::GetRegionCodes();
  82 }
  83
  84 std::vector<AddressUiComponent> BuildComponents(
  85     const std::string& region_code,
  86     const Localization& localization,
  87     const std::string& ui_language_tag,
  88     std::string* best_address_language_tag) {
  89   assert(best_address_language_tag != NULL);
  90   std::vector<AddressUiComponent> result;
  91
  92   Rule rule;
  93   rule.CopyFrom(Rule::GetDefault());
  94   if (!rule.ParseSerializedRule(
  95           RegionDataConstants::GetRegionData(region_code))) {
  96     return result;
  97   }
  98
  99   const Language& best_address_language =
 100       ChooseBestAddressLanguage(rule, Language(ui_language_tag));
 101   *best_address_language_tag = best_address_language.tag;
 102
 103   const std::vector<FormatElement>& format =
 104       !rule.GetLatinFormat().empty() && best_address_language.has_latin_script
 105           ? rule.GetLatinFormat()
 106           : rule.GetFormat();
 107
 108   // For avoiding showing an input field twice, when the field is displayed
 109   // twice on an envelope.
 110   std::set<AddressField> fields;
 111
 112   bool preceded_by_newline = true;
 113   bool followed_by_newline = true;
 114   for (std::vector<FormatElement>::const_iterator format_it = format.begin();
 115        format_it != format.end(); ++format_it) {
 116     if (format_it->IsNewline()) {
 117       preceded_by_newline = true;
 118       continue;
 119     } else if (!format_it->IsField() ||
 120                !fields.insert(format_it->GetField()).second) {
 121       continue;
 122     }
 123     AddressUiComponent component;
 124     std::vector<FormatElement>::const_iterator next_format_it = format_it + 1;
 125     followed_by_newline =
 126         next_format_it == format.end() || next_format_it->IsNewline();
 127     component.length_hint = preceded_by_newline && followed_by_newline
 128                                 ? AddressUiComponent::HINT_LONG
 129                                 : AddressUiComponent::HINT_SHORT;
 130     preceded_by_newline = false;
 131     component.field = format_it->GetField();
 132     component.name = GetLabelForField(localization,
 133                                       format_it->GetField(),
 134                                       rule.GetAdminAreaNameMessageId(),
 135                                       rule.GetPostalCodeNameMessageId());
 136     result.push_back(component);
 137   }
 138
 139   return result;
 140 }
 141
 142 }  // namespace addressinput
 143 }  // namespace i18n