third_party/libaddressinput/chromium/chrome_metadata_source.h

   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_CHROME_METADATA_SOURCE_H_
   6 #define THIRD_PARTY_LIBADDRESSINPUT_CHROMIUM_CHROME_METADATA_SOURCE_H_
   7
   8 #include <map>
   9 #include <string>
  10
  11 #include "net/url_request/url_fetcher_delegate.h"
  12 #include "third_party/libaddressinput/src/cpp/include/libaddressinput/source.h"
  13
  14 namespace net {
  15 class URLFetcher;
  16 class URLRequestContextGetter;
  17 }
  18
  19 namespace autofill {
  20
  21 // A class for downloading rules to let libaddressinput validate international
  22 // addresses.
  23 class ChromeMetadataSource : public ::i18n::addressinput::Source,
  24                              public net::URLFetcherDelegate {
  25  public:
  26   ChromeMetadataSource(const std::string& validation_data_url,
  27                        net::URLRequestContextGetter* getter);
  28   virtual ~ChromeMetadataSource();
  29
  30   // ::i18n::addressinput::Source:
  31   virtual void Get(const std::string& key,
  32                    const Callback& downloaded) const override;
  33
  34   // net::URLFetcherDelegate:
  35   virtual void OnURLFetchComplete(const net::URLFetcher* source) override;
  36
  37  private:
  38   struct Request {
  39     Request(const std::string& key,
  40             scoped_ptr<net::URLFetcher> fetcher,
  41             const Callback& callback);
  42
  43     std::string key;
  44     // The data that's received.
  45     std::string data;
  46     // The object that manages retrieving the data.
  47     scoped_ptr<net::URLFetcher> fetcher;
  48     const Callback& callback;
  49   };
  50
  51   // Non-const method actually implementing Get().
  52   void Download(const std::string& key, const Callback& downloaded);
  53
  54   const std::string validation_data_url_;
  55   net::URLRequestContextGetter* const getter_;  // weak
  56
  57   // Maps from active URL fetcher to request metadata. The value is owned.
  58   std::map<const net::URLFetcher*, Request*> requests_;
  59
  60   DISALLOW_COPY_AND_ASSIGN(ChromeMetadataSource);
  61 };
  62
  63 }  // namespace autofill
  64
  65 #endif  // THIRD_PARTY_LIBADDRESSINPUT_CHROMIUM_CHROME_METADATA_SOURCE_H_