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// Copyright (C) 2014 Google Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef I18N_ADDRESSINPUT_ADDRESS_INPUT_HELPER_H_
#define I18N_ADDRESSINPUT_ADDRESS_INPUT_HELPER_H_
#include <vector>
#include <libaddressinput/util/basictypes.h>
namespace i18n {
namespace addressinput {
class LookupKey;
class PreloadSupplier;
struct AddressData;
struct Node;
class AddressInputHelper {
public:
// Creates an input helper that uses the supplier provided to get metadata to
// help a user complete or fix an address. Doesn't take ownership of
// |supplier|. Since latency is important for these kinds of tasks, we expect
// the supplier to have the data already.
AddressInputHelper(PreloadSupplier* supplier);
~AddressInputHelper();
// Fill in missing components of an address as best as we can based on
// existing data. For example, for some countries only one postal code is
// valid; this would enter that one. For others, the postal code indicates
// what state should be selected. Existing data will never be overwritten.
//
// Note that the preload supplier must have had the rules for the country
// represented by this address loaded before this method is called - otherwise
// an assertion failure will result.
//
// The address should have the best language tag as returned from
// BuildComponents().
void FillAddress(AddressData* address) const;
private:
void CheckChildrenForPostCodeMatches(
const AddressData& address, const LookupKey& lookup_key,
const Node* parent, std::vector<Node>* hierarchy) const;
// We don't own the supplier_.
PreloadSupplier* const supplier_;
DISALLOW_COPY_AND_ASSIGN(AddressInputHelper);
};
} // namespace addressinput
} // namespace i18n
#endif // I18N_ADDRESSINPUT_ADDRESS_INPUT_HELPER_H_
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