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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CONTENT_BROWSER_GEOLOCATION_NETWORK_LOCATION_REQUEST_H_
#define CONTENT_BROWSER_GEOLOCATION_NETWORK_LOCATION_REQUEST_H_
#include "base/basictypes.h"
#include "base/memory/ref_counted.h"
#include "base/memory/scoped_ptr.h"
#include "content/browser/geolocation/wifi_data_provider.h"
#include "content/common/content_export.h"
#include "net/url_request/url_fetcher_delegate.h"
#include "url/gurl.h"
namespace net {
class URLFetcher;
class URLRequestContextGetter;
}
namespace content {
struct Geoposition;
// Takes wifi data and sends it to a server to get a position fix.
// It performs formatting of the request and interpretation of the response.
class NetworkLocationRequest : private net::URLFetcherDelegate {
public:
// ID passed to URLFetcher::Create(). Used for testing.
CONTENT_EXPORT static int url_fetcher_id_for_tests;
// Called when a new geo position is available. The second argument indicates
// whether there was a server error or not. It is true when there was a
// server or network error - either no response or a 500 error code.
typedef base::Callback<void(const Geoposition& /* position */,
bool /* server_error */,
const base::string16& /* access_token */,
const WifiData& /* wifi_data */)>
LocationResponseCallback;
// |url| is the server address to which the request wil be sent.
NetworkLocationRequest(net::URLRequestContextGetter* context,
const GURL& url,
LocationResponseCallback callback);
virtual ~NetworkLocationRequest();
// Makes a new request. Returns true if the new request was successfully
// started. In all cases, any currently pending request will be canceled.
bool MakeRequest(const base::string16& access_token,
const WifiData& wifi_data,
const base::Time& timestamp);
bool is_request_pending() const { return url_fetcher_ != NULL; }
const GURL& url() const { return url_; }
private:
// net::URLFetcherDelegate
virtual void OnURLFetchComplete(const net::URLFetcher* source) OVERRIDE;
scoped_refptr<net::URLRequestContextGetter> url_context_;
LocationResponseCallback location_response_callback_;
const GURL url_;
scoped_ptr<net::URLFetcher> url_fetcher_;
// Keep a copy of the data sent in the request, so we can refer back to it
// when the response arrives.
WifiData wifi_data_;
base::Time wifi_data_timestamp_;
// The start time for the request.
base::TimeTicks request_start_time_;
DISALLOW_COPY_AND_ASSIGN(NetworkLocationRequest);
};
} // namespace content
#endif // CONTENT_BROWSER_GEOLOCATION_NETWORK_LOCATION_REQUEST_H_