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| 1 // Copyright 2017 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_PAYMENTS_CORE_SUBKEY_REQUESTER_H_ |
| 6 #define COMPONENTS_PAYMENTS_CORE_SUBKEY_REQUESTER_H_ |
| 7 |
| 8 #include "base/macros.h" |
| 9 #include "third_party/libaddressinput/chromium/chrome_address_validator.h" |
| 10 |
| 11 namespace payments { |
| 12 |
| 13 using SubKeyReceiverCallback = |
| 14 base::OnceCallback<void(const std::vector<std::string>&)>; |
| 15 |
| 16 // SubKeyRequester Loads Rules from the server and extracts the subkeys. |
| 17 // For a given key (region code for a country, such as US), the list of its |
| 18 // corresponding subkeys is the list of that countries admin areas (states, |
| 19 // provinces, ..). |
| 20 class SubKeyRequester : public autofill::LoadRulesListener { |
| 21 public: |
| 22 // The interface for the subkey request. |
| 23 class Request { |
| 24 public: |
| 25 virtual void OnRulesLoaded() = 0; |
| 26 virtual ~Request() {} |
| 27 }; |
| 28 |
| 29 SubKeyRequester(std::unique_ptr<i18n::addressinput::Source> source, |
| 30 std::unique_ptr<i18n::addressinput::Storage> storage); |
| 31 ~SubKeyRequester() override; |
| 32 |
| 33 // If the rules for |region_code| are loaded, this gets the subkeys for the |
| 34 // |region_code|, synchronously. If they are not loaded yet, it sets up a |
| 35 // task to get the subkeys when the rules are loaded (asynchronous). If the |
| 36 // loading has not yet started, it will also start loading the rules for the |
| 37 // |region_code|. The received subkeys will be returned to the |requester|. If |
| 38 // the subkeys are not received in |timeout_seconds|, then the requester will |
| 39 // be informed and the request will be canceled. |requester| should never be |
| 40 // null. |
| 41 void StartRegionSubKeysRequest(const std::string& region_code, |
| 42 int timeout_seconds, |
| 43 SubKeyReceiverCallback cb); |
| 44 |
| 45 // Returns whether the rules for the specified |region_code| have finished |
| 46 // loading. |
| 47 bool AreRulesLoadedForRegion(const std::string& region_code); |
| 48 |
| 49 // Start loading the rules for the specified |region_code|. |
| 50 virtual void LoadRulesForRegion(const std::string& region_code); |
| 51 |
| 52 // Cancels the pending subkey request task. |
| 53 void CancelPendingGetSubKeys(); |
| 54 |
| 55 private: |
| 56 // Called when the address rules for the |region_code| have finished |
| 57 // loading. Implementation of the LoadRulesListener interface. |
| 58 void OnAddressValidationRulesLoaded(const std::string& region_code, |
| 59 bool success) override; |
| 60 |
| 61 // The region code and the request for the pending subkey request. |
| 62 std::unique_ptr<Request> pending_subkey_request_; |
| 63 std::string pending_subkey_region_code_; |
| 64 |
| 65 // The address validator used to load subkeys. |
| 66 autofill::AddressValidator address_validator_; |
| 67 |
| 68 DISALLOW_COPY_AND_ASSIGN(SubKeyRequester); |
| 69 }; |
| 70 |
| 71 } // namespace payments |
| 72 |
| 73 #endif // COMPONENTS_PAYMENTS_CORE_SUBKEY_REQUESTER_H_ |
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