third_party/libaddressinput/chromium/chrome_downloader_impl.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_DOWNLOADER_IMPL_H_
   6 #define THIRD_PARTY_LIBADDRESSINPUT_CHROMIUM_CHROME_DOWNLOADER_IMPL_H_
   7
   8 #include <map>
   9 #include <string>
  10
  11 #include "base/memory/scoped_vector.h"
  12 #include "net/url_request/url_fetcher_delegate.h"
  13 #include "third_party/libaddressinput/src/cpp/include/libaddressinput/downloader.h"
  14
  15 namespace net {
  16 class URLFetcher;
  17 class URLRequestContextGetter;
  18 }
  19
  20 namespace autofill {
  21
  22 // A class for downloading rules to let libaddressinput validate international
  23 // addresses.
  24 class ChromeDownloaderImpl : public ::i18n::addressinput::Downloader,
  25                              public net::URLFetcherDelegate {
  26  public:
  27   explicit ChromeDownloaderImpl(net::URLRequestContextGetter* getter);
  28   virtual ~ChromeDownloaderImpl();
  29
  30   // ::i18n::addressinput::Downloader:
  31   virtual void Download(const std::string& url,
  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& url,
  40             scoped_ptr<net::URLFetcher> fetcher,
  41             const Callback& callback);
  42
  43     std::string url;
  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 version of Download().
  52   void DoDownload(const std::string& url, const Callback& downloaded);
  53
  54   net::URLRequestContextGetter* const getter_;  // weak
  55
  56   // Maps from active url fetcher to request metadata. The value is owned.
  57   std::map<const net::URLFetcher*, Request*> requests_;
  58
  59   DISALLOW_COPY_AND_ASSIGN(ChromeDownloaderImpl);
  60 };
  61
  62 }  // namespace autofill
  63
  64 #endif  // THIRD_PARTY_LIBADDRESSINPUT_CHROMIUM_CHROME_DOWNLOADER_IMPL_H_