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55 lines
2.0 KiB
Plaintext
55 lines
2.0 KiB
Plaintext
// Copyright 2017 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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module device.mojom;
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// A Geoposition represents a position fix. It was originally derived from:
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// http://gears.googlecode.com/svn/trunk/gears/geolocation/geolocation.h
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// TODO(blundell): Investigate killing content::Geoposition in favor of using
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// this struct everywhere.
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struct Geoposition {
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// These values follow the W3C geolocation specification and can be returned
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// to JavaScript without the need for a conversion.
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enum ErrorCode {
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NONE = 0, // Chrome addition.
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PERMISSION_DENIED = 1,
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POSITION_UNAVAILABLE = 2,
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TIMEOUT = 3,
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LAST = TIMEOUT
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};
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// Whether this geoposition is valid.
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bool valid;
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// These properties correspond to those of the JavaScript Position object
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// although their types may differ.
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// Latitude in decimal degrees north (WGS84 coordinate frame).
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double latitude;
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// Longitude in decimal degrees west (WGS84 coordinate frame).
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double longitude;
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// Altitude in meters (above WGS84 datum).
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double altitude;
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// Accuracy of horizontal position in meters.
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double accuracy;
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// Accuracy of altitude in meters.
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double altitude_accuracy;
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// Heading in decimal degrees clockwise from true north.
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double heading;
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// Horizontal component of device velocity in meters per second.
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double speed;
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// TODO(blundell): If I need to represent this differently to use this
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// struct to replace content::Geolocation, I'll need to convert
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// correctly into seconds-since-epoch when using this in
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// GeolocationDispatcher::OnLocationUpdate().
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// Time of position measurement in seconds since Epoch in UTC time. This is
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// taken from the host computer's system clock (i.e. from Time::Now(), not the
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// source device's clock).
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double timestamp;
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// Error code, see enum above.
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ErrorCode error_code;
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// Human-readable error message.
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string error_message;
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};
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