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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.
#include "device/geolocation/geoposition.h"
namespace {
// Sentinel values to mark invalid data. (WebKit carries companion is_valid
// bools for this purpose; we may eventually follow that approach, but
// sentinels worked OK in the Gears code this is based on.)
const double kBadLatitudeLongitude = 200;
// Lowest point on land is at approximately -400 meters.
const int kBadAltitude = -10000;
const int kBadAccuracy = -1; // Accuracy must be non-negative.
const int kBadHeading = -1; // Heading must be non-negative.
const int kBadSpeed = -1;
}
namespace device {
Geoposition::Geoposition()
: latitude(kBadLatitudeLongitude),
longitude(kBadLatitudeLongitude),
altitude(kBadAltitude),
accuracy(kBadAccuracy),
altitude_accuracy(kBadAccuracy),
heading(kBadHeading),
speed(kBadSpeed),
error_code(ERROR_CODE_NONE) {}
Geoposition::Geoposition(const Geoposition& other) = default;
bool Geoposition::Validate() const {
return latitude >= -90. && latitude <= 90. && longitude >= -180. &&
longitude <= 180. && accuracy >= 0. && !timestamp.is_null();
}
} // namespace device
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