src/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/chromium/cpp/include/libaddressinput/downloader.h"
  14
  15 namespace net {
  16 class URLFetcher;
  17 class URLRequestContextGetter;
  18 }
  19
  20 // A class for downloading rules to let libaddressinput validate international
  21 // addresses.
  22 class ChromeDownloaderImpl : public i18n::addressinput::Downloader,
  23                              public net::URLFetcherDelegate {
  24  public:
  25   explicit ChromeDownloaderImpl(net::URLRequestContextGetter* getter);
  26   virtual ~ChromeDownloaderImpl();
  27
  28   // i18n::addressinput::Downloader:
  29   virtual void Download(const std::string& url,
  30                         scoped_ptr<Callback> downloaded) OVERRIDE;
  31
  32   // net::URLFetcherDelegate:
  33   virtual void OnURLFetchComplete(const net::URLFetcher* source) OVERRIDE;
  34
  35  private:
  36   struct Request {
  37     Request(const std::string& url, scoped_ptr<Callback> callback);
  38
  39     std::string url;
  40     scoped_ptr<Callback> callback;
  41   };
  42
  43   net::URLRequestContextGetter* const getter_;  // weak
  44
  45   // Maps from active url fetcher to request metadata. Both the key and value
  46   // are owned.
  47   std::map<const net::URLFetcher*, Request*> requests_;
  48
  49   DISALLOW_COPY_AND_ASSIGN(ChromeDownloaderImpl);
  50 };
  51
  52 #endif  // THIRD_PARTY_LIBADDRESSINPUT_CHROMIUM_CHROME_DOWNLOADER_IMPL_H_