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