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| 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 "content/browser/geolocation/geolocation_service_impl.h" | |
| 6 | |
| 7 #include "base/bind.h" | |
| 8 #include "base/metrics/histogram.h" | |
| 9 #include "content/browser/geolocation/geolocation_service_context.h" | |
| 10 #include "content/public/common/mojo_geoposition.mojom.h" | |
| 11 | |
| 12 namespace content { | |
| 13 | |
| 14 namespace { | |
| 15 | |
| 16 // Geoposition error codes for reporting in UMA. | |
| 17 enum GeopositionErrorCode { | |
| 18 // NOTE: Do not renumber these as that would confuse interpretation of | |
| 19 // previously logged data. When making changes, also update the enum list | |
| 20 // in tools/metrics/histograms/histograms.xml to keep it in sync. | |
| 21 | |
| 22 // There was no error. | |
| 23 GEOPOSITION_ERROR_CODE_NONE = 0, | |
| 24 | |
| 25 // User denied use of geolocation. | |
| 26 GEOPOSITION_ERROR_CODE_PERMISSION_DENIED = 1, | |
| 27 | |
| 28 // Geoposition could not be determined. | |
| 29 GEOPOSITION_ERROR_CODE_POSITION_UNAVAILABLE = 2, | |
| 30 | |
| 31 // Timeout. | |
| 32 GEOPOSITION_ERROR_CODE_TIMEOUT = 3, | |
| 33 | |
| 34 // NOTE: Add entries only immediately above this line. | |
| 35 GEOPOSITION_ERROR_CODE_COUNT = 4 | |
| 36 }; | |
| 37 | |
| 38 void RecordGeopositionErrorCode(Geoposition::ErrorCode error_code) { | |
| 39 GeopositionErrorCode code = GEOPOSITION_ERROR_CODE_NONE; | |
| 40 switch (error_code) { | |
| 41 case Geoposition::ERROR_CODE_NONE: | |
| 42 code = GEOPOSITION_ERROR_CODE_NONE; | |
| 43 break; | |
| 44 case Geoposition::ERROR_CODE_PERMISSION_DENIED: | |
| 45 code = GEOPOSITION_ERROR_CODE_PERMISSION_DENIED; | |
| 46 break; | |
| 47 case Geoposition::ERROR_CODE_POSITION_UNAVAILABLE: | |
| 48 code = GEOPOSITION_ERROR_CODE_POSITION_UNAVAILABLE; | |
| 49 break; | |
| 50 case Geoposition::ERROR_CODE_TIMEOUT: | |
| 51 code = GEOPOSITION_ERROR_CODE_TIMEOUT; | |
| 52 break; | |
| 53 } | |
| 54 UMA_HISTOGRAM_ENUMERATION("Geolocation.LocationUpdate.ErrorCode", | |
| 55 code, | |
| 56 GEOPOSITION_ERROR_CODE_COUNT); | |
| 57 } | |
| 58 | |
| 59 } // namespace | |
| 60 | |
| 61 GeolocationServiceImpl::GeolocationServiceImpl( | |
| 62 GeolocationServiceContext* context, | |
| 63 const base::Closure& update_callback) | |
| 64 : context_(context), | |
| 65 update_callback_(update_callback), | |
| 66 high_accuracy_(false) { | |
| 67 DCHECK(context_); | |
| 68 } | |
| 69 | |
| 70 GeolocationServiceImpl::~GeolocationServiceImpl() { | |
| 71 } | |
| 72 | |
| 73 void GeolocationServiceImpl::PauseUpdates() { | |
| 74 geolocation_subscription_.reset(); | |
| 75 } | |
| 76 | |
| 77 void GeolocationServiceImpl::ResumeUpdates() { | |
| 78 if (position_override_.Validate()) { | |
| 79 OnLocationUpdate(position_override_); | |
| 80 return; | |
| 81 } | |
| 82 | |
| 83 StartListeningForUpdates(); | |
| 84 } | |
| 85 | |
| 86 void GeolocationServiceImpl::StartListeningForUpdates() { | |
| 87 geolocation_subscription_ = | |
| 88 GeolocationProvider::GetInstance()->AddLocationUpdateCallback( | |
| 89 base::Bind(&GeolocationServiceImpl::OnLocationUpdate, | |
| 90 base::Unretained(this)), | |
| 91 high_accuracy_); | |
| 92 } | |
| 93 | |
| 94 void GeolocationServiceImpl::SetHighAccuracy(bool high_accuracy) { | |
| 95 UMA_HISTOGRAM_BOOLEAN( | |
| 96 "Geolocation.GeolocationDispatcherHostImpl.EnableHighAccuracy", | |
| 97 high_accuracy); | |
| 98 high_accuracy_ = high_accuracy; | |
| 99 | |
| 100 if (position_override_.Validate()) { | |
| 101 OnLocationUpdate(position_override_); | |
| 102 return; | |
| 103 } | |
| 104 | |
| 105 StartListeningForUpdates(); | |
| 106 } | |
| 107 | |
| 108 void GeolocationServiceImpl::SetOverride(const Geoposition& position) { | |
| 109 position_override_ = position; | |
| 110 if (!position_override_.Validate()) { | |
| 111 ResumeUpdates(); | |
| 112 } | |
| 113 | |
| 114 geolocation_subscription_.reset(); | |
| 115 | |
| 116 OnLocationUpdate(position_override_); | |
| 117 } | |
| 118 | |
| 119 void GeolocationServiceImpl::ClearOverride() { | |
| 120 position_override_ = Geoposition(); | |
| 121 StartListeningForUpdates(); | |
| 122 } | |
| 123 | |
| 124 void GeolocationServiceImpl::OnConnectionError() { | |
| 125 context_->ServiceHadConnectionError(this); | |
| 126 | |
| 127 // The above call deleted this instance, so the only safe thing to do is | |
| 128 // return. | |
| 129 } | |
| 130 | |
| 131 void GeolocationServiceImpl::OnLocationUpdate(const Geoposition& position) { | |
| 132 RecordGeopositionErrorCode(position.error_code); | |
| 133 DCHECK(context_); | |
| 134 | |
| 135 if (context_->paused()) | |
| 136 return; | |
| 137 | |
| 138 MojoGeopositionPtr geoposition(MojoGeoposition::New()); | |
| 139 geoposition->valid = position.Validate(); | |
| 140 geoposition->latitude = position.latitude; | |
| 141 geoposition->longitude = position.longitude; | |
| 142 geoposition->altitude = position.altitude; | |
| 143 geoposition->accuracy = position.accuracy; | |
| 144 geoposition->altitude_accuracy = position.altitude_accuracy; | |
| 145 geoposition->heading = position.heading; | |
| 146 geoposition->speed = position.speed; | |
| 147 geoposition->timestamp = position.timestamp.ToDoubleT(); | |
| 148 geoposition->error_code = MojoGeoposition::ErrorCode(position.error_code); | |
| 149 geoposition->error_message = position.error_message; | |
| 150 | |
| 151 update_callback_.Run(); | |
| 152 client()->OnLocationUpdate(geoposition.Pass()); | |
| 153 } | |
| 154 | |
| 155 } // namespace content | |
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