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| 1 // Copyright (c) 2012 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/renderer/geolocation_dispatcher.h" | |
| 6 | |
| 7 #include "content/public/common/geoposition.h" | |
| 8 #include "content/renderer/render_view_impl.h" | |
| 9 #include "third_party/WebKit/public/platform/WebString.h" | |
| 10 #include "third_party/WebKit/public/web/WebGeolocationPermissionRequest.h" | |
| 11 #include "third_party/WebKit/public/web/WebGeolocationPermissionRequestManager.h
" | |
| 12 #include "third_party/WebKit/public/web/WebGeolocationClient.h" | |
| 13 #include "third_party/WebKit/public/web/WebGeolocationPosition.h" | |
| 14 #include "third_party/WebKit/public/web/WebGeolocationError.h" | |
| 15 | |
| 16 using blink::WebGeolocationController; | |
| 17 using blink::WebGeolocationError; | |
| 18 using blink::WebGeolocationPermissionRequest; | |
| 19 using blink::WebGeolocationPermissionRequestManager; | |
| 20 using blink::WebGeolocationPosition; | |
| 21 | |
| 22 namespace content { | |
| 23 | |
| 24 GeolocationDispatcher::GeolocationDispatcher(RenderFrame* render_frame) | |
| 25 : RenderFrameObserver(render_frame), | |
| 26 pending_permissions_(new WebGeolocationPermissionRequestManager()), | |
| 27 enable_high_accuracy_(false) { | |
| 28 } | |
| 29 | |
| 30 GeolocationDispatcher::~GeolocationDispatcher() {} | |
| 31 | |
| 32 void GeolocationDispatcher::startUpdating() { | |
| 33 if (!geolocation_service_) { | |
| 34 render_frame()->GetServiceRegistry()->ConnectToRemoteService( | |
| 35 mojo::GetProxy(&geolocation_service_)); | |
| 36 } | |
| 37 if (enable_high_accuracy_) | |
| 38 geolocation_service_->SetHighAccuracy(true); | |
| 39 QueryNextPosition(); | |
| 40 } | |
| 41 | |
| 42 void GeolocationDispatcher::stopUpdating() { | |
| 43 geolocation_service_.reset(); | |
| 44 } | |
| 45 | |
| 46 void GeolocationDispatcher::setEnableHighAccuracy(bool enable_high_accuracy) { | |
| 47 // GeolocationController calls setEnableHighAccuracy(true) before | |
| 48 // startUpdating in response to the first high-accuracy Geolocation | |
| 49 // subscription. When the last high-accuracy Geolocation unsubscribes | |
| 50 // it calls setEnableHighAccuracy(false) after stopUpdating. | |
| 51 bool has_changed = enable_high_accuracy_ != enable_high_accuracy; | |
| 52 enable_high_accuracy_ = enable_high_accuracy; | |
| 53 // We have a different accuracy requirement. Request browser to update. | |
| 54 if (geolocation_service_ && has_changed) | |
| 55 geolocation_service_->SetHighAccuracy(enable_high_accuracy_); | |
| 56 } | |
| 57 | |
| 58 void GeolocationDispatcher::setController( | |
| 59 WebGeolocationController* controller) { | |
| 60 controller_.reset(controller); | |
| 61 } | |
| 62 | |
| 63 bool GeolocationDispatcher::lastPosition(WebGeolocationPosition&) { | |
| 64 // The latest position is stored in the browser, not the renderer, so we | |
| 65 // would have to fetch it synchronously to give a good value here. The | |
| 66 // WebCore::GeolocationController already caches the last position it | |
| 67 // receives, so there is not much benefit to more position caching here. | |
| 68 return false; | |
| 69 } | |
| 70 | |
| 71 // TODO(jknotten): Change the messages to use a security origin, so no | |
| 72 // conversion is necessary. | |
| 73 void GeolocationDispatcher::requestPermission( | |
| 74 const WebGeolocationPermissionRequest& permissionRequest) { | |
| 75 num_pending_permission_requests_++; | |
| 76 if (!permission_service_.get()) { | |
| 77 render_frame()->GetServiceRegistry()->ConnectToRemoteService( | |
| 78 mojo::GetProxy(&permission_service_)); | |
| 79 } | |
| 80 | |
| 81 int permission_request_id = pending_permissions_->add(permissionRequest); | |
| 82 | |
| 83 permission_service_->RequestPermission( | |
| 84 blink::mojom::PermissionName::GEOLOCATION, | |
| 85 permissionRequest.getSecurityOrigin().toString().utf8(), | |
| 86 base::Bind(&GeolocationDispatcher::OnPermissionSet, | |
| 87 base::Unretained(this), permission_request_id)); | |
| 88 } | |
| 89 | |
| 90 void GeolocationDispatcher::cancelPermissionRequest( | |
| 91 const blink::WebGeolocationPermissionRequest& permissionRequest) { | |
| 92 int permission_request_id; | |
| 93 pending_permissions_->remove(permissionRequest, permission_request_id); | |
| 94 if (--num_pending_permission_requests_ == 0) | |
| 95 permission_service_.reset(); | |
| 96 } | |
| 97 | |
| 98 // Permission for using geolocation has been set. | |
| 99 void GeolocationDispatcher::OnPermissionSet( | |
| 100 int permission_request_id, | |
| 101 blink::mojom::PermissionStatus status) { | |
| 102 WebGeolocationPermissionRequest permissionRequest; | |
| 103 if (!pending_permissions_->remove(permission_request_id, permissionRequest)) | |
| 104 return; | |
| 105 | |
| 106 if (--num_pending_permission_requests_ == 0) | |
| 107 permission_service_.reset(); | |
| 108 | |
| 109 permissionRequest.setIsAllowed(status == | |
| 110 blink::mojom::PermissionStatus::GRANTED); | |
| 111 } | |
| 112 | |
| 113 void GeolocationDispatcher::QueryNextPosition() { | |
| 114 DCHECK(geolocation_service_); | |
| 115 geolocation_service_->QueryNextPosition( | |
| 116 base::Bind(&GeolocationDispatcher::OnPositionUpdate, | |
| 117 base::Unretained(this))); | |
| 118 } | |
| 119 | |
| 120 void GeolocationDispatcher::OnPositionUpdate( | |
| 121 blink::mojom::GeopositionPtr geoposition) { | |
| 122 QueryNextPosition(); | |
| 123 | |
| 124 if (geoposition->valid) { | |
| 125 controller_->positionChanged(WebGeolocationPosition( | |
| 126 geoposition->timestamp, | |
| 127 geoposition->latitude, | |
| 128 geoposition->longitude, | |
| 129 geoposition->accuracy, | |
| 130 // Lowest point on land is at approximately -400 meters. | |
| 131 geoposition->altitude > -10000., | |
| 132 geoposition->altitude, | |
| 133 geoposition->altitude_accuracy >= 0., | |
| 134 geoposition->altitude_accuracy, | |
| 135 geoposition->heading >= 0. && geoposition->heading <= 360., | |
| 136 geoposition->heading, | |
| 137 geoposition->speed >= 0., | |
| 138 geoposition->speed)); | |
| 139 } else { | |
| 140 WebGeolocationError::Error code; | |
| 141 switch (geoposition->error_code) { | |
| 142 case blink::mojom::Geoposition::ErrorCode::PERMISSION_DENIED: | |
| 143 code = WebGeolocationError::ErrorPermissionDenied; | |
| 144 break; | |
| 145 case blink::mojom::Geoposition::ErrorCode::POSITION_UNAVAILABLE: | |
| 146 code = WebGeolocationError::ErrorPositionUnavailable; | |
| 147 break; | |
| 148 default: | |
| 149 NOTREACHED() << geoposition->error_code; | |
| 150 return; | |
| 151 } | |
| 152 controller_->errorOccurred(WebGeolocationError( | |
| 153 code, blink::WebString::fromUTF8(geoposition->error_message))); | |
| 154 } | |
| 155 } | |
| 156 | |
| 157 } // namespace content | |
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