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 #include "chrome/browser/chromeos/timezone/timezone_provider.h" 6 7 #include <algorithm> 8 #include <iterator> 9 10 #include "base/bind.h" 11 #include "base/logging.h" 12 #include "base/time/time.h" 13 #include "chrome/browser/chromeos/geolocation/geoposition.h" 14 #include "net/url_request/url_request_context_getter.h" 15 #include "url/gurl.h" 16 17 namespace chromeos { 18 19 TimeZoneProvider::TimeZoneProvider( 20 net::URLRequestContextGetter* url_context_getter, 21 const GURL& url) 22 : url_context_getter_(url_context_getter), url_(url) { 23 } 24 25 TimeZoneProvider::~TimeZoneProvider() { 26 DCHECK(thread_checker_.CalledOnValidThread()); 27 } 28 29 void TimeZoneProvider::RequestTimezone( 30 const Geoposition& position, 31 bool sensor, 32 base::TimeDelta timeout, 33 TimeZoneRequest::TimeZoneResponseCallback callback) { 34 TimeZoneRequest* request(new TimeZoneRequest( 35 url_context_getter_.get(), url_, position, sensor, timeout)); 36 requests_.push_back(request); 37 38 // TimeZoneProvider owns all requests. It is safe to pass unretained "this" 39 // because destruction of TimeZoneProvider cancels all requests. 40 TimeZoneRequest::TimeZoneResponseCallback callback_tmp( 41 base::Bind(&TimeZoneProvider::OnTimezoneResponse, 42 base::Unretained(this), 43 request, 44 callback)); 45 request->MakeRequest(callback_tmp); 46 } 47 48 void TimeZoneProvider::OnTimezoneResponse( 49 TimeZoneRequest* request, 50 TimeZoneRequest::TimeZoneResponseCallback callback, 51 scoped_ptr<TimeZoneResponseData> timezone, 52 bool server_error) { 53 ScopedVector<TimeZoneRequest>::iterator new_end = 54 std::remove(requests_.begin(), requests_.end(), request); 55 DCHECK_EQ(std::distance(new_end, requests_.end()), 1); 56 requests_.erase(new_end, requests_.end()); 57 58 callback.Run(timezone.Pass(), server_error); 59 } 60 61 } // namespace chromeos 62
