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// Copyright (c) 2010 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 CHROME_BROWSER_GEOLOCATION_NETWORK_LOCATION_REQUEST_H_
#define CHROME_BROWSER_GEOLOCATION_NETWORK_LOCATION_REQUEST_H_
#include <string>
#include "base/basictypes.h"
#include "base/ref_counted.h"
#include "chrome/browser/geolocation/device_data_provider.h"
#include "chrome/common/net/url_fetcher.h"
#include "googleurl/src/gurl.h"
class URLRequestContextGetter;
class URLFetcher;
struct Geoposition;
struct Position;
// Takes a set of device 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 URLFetcher::Delegate {
public:
// ID passed to URLFetcher::Create(). Used for testing.
static int url_fetcher_id_for_tests;
// Interface for receiving callbacks from a NetworkLocationRequest object.
class ListenerInterface {
public:
// Updates the listener with a new position. server_error indicates whether
// was a server or network error - either no response or a 500 error code.
virtual void LocationResponseAvailable(
const Geoposition& position,
bool server_error,
const string16& access_token,
const RadioData& radio_data,
const WifiData& wifi_data) = 0;
protected:
virtual ~ListenerInterface() {}
};
// |url| is the server address to which the request wil be sent.
NetworkLocationRequest(URLRequestContextGetter* context,
const GURL& url,
ListenerInterface* listener);
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 std::string& host,
const string16& access_token,
const RadioData& radio_data,
const WifiData& wifi_data,
const base::Time& timestamp);
bool is_request_pending() const { return url_fetcher_ != NULL; }
const GURL& url() const { return url_; }
private:
// URLFetcher::Delegate
virtual void OnURLFetchComplete(const URLFetcher* source,
const GURL& url,
const URLRequestStatus& status,
int response_code,
const ResponseCookies& cookies,
const std::string& data);
scoped_refptr<URLRequestContextGetter> url_context_;
ListenerInterface* listener_;
const GURL url_;
scoped_ptr<URLFetcher> url_fetcher_;
// Keep a copy of the data sent in the request, so we can refer back to it
// when the response arrives.
RadioData radio_data_;
WifiData wifi_data_;
base::Time timestamp_; // Timestamp of the above data, not of the request.
DISALLOW_COPY_AND_ASSIGN(NetworkLocationRequest);
};
#endif // CHROME_BROWSER_GEOLOCATION_NETWORK_LOCATION_REQUEST_H_
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