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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 "content/renderer/geolocation_dispatcher.h"
#include "content/child/child_thread.h"
#include "content/public/common/geoposition.h"
#include "content/renderer/render_view_impl.h"
#include "third_party/WebKit/public/platform/WebString.h"
#include "third_party/WebKit/public/web/WebGeolocationPermissionRequest.h"
#include "third_party/WebKit/public/web/WebGeolocationPermissionRequestManager.h"
#include "third_party/WebKit/public/web/WebGeolocationClient.h"
#include "third_party/WebKit/public/web/WebGeolocationPosition.h"
#include "third_party/WebKit/public/web/WebGeolocationError.h"
#include "third_party/WebKit/public/web/WebUserGestureIndicator.h"
using blink::WebGeolocationController;
using blink::WebGeolocationError;
using blink::WebGeolocationPermissionRequest;
using blink::WebGeolocationPermissionRequestManager;
using blink::WebGeolocationPosition;
namespace content {
GeolocationDispatcher::GeolocationDispatcher(RenderFrame* render_frame)
: RenderFrameObserver(render_frame),
pending_permissions_(new WebGeolocationPermissionRequestManager()),
enable_high_accuracy_(false) {
}
GeolocationDispatcher::~GeolocationDispatcher() {}
void GeolocationDispatcher::startUpdating() {
if (!geolocation_service_.get()) {
render_frame()->GetServiceRegistry()->ConnectToRemoteService(
&geolocation_service_);
geolocation_service_.set_client(this);
}
if (enable_high_accuracy_)
geolocation_service_->SetHighAccuracy(true);
}
void GeolocationDispatcher::stopUpdating() {
geolocation_service_.reset();
}
void GeolocationDispatcher::setEnableHighAccuracy(bool enable_high_accuracy) {
// GeolocationController calls setEnableHighAccuracy(true) before
// startUpdating in response to the first high-accuracy Geolocation
// subscription. When the last high-accuracy Geolocation unsubscribes
// it calls setEnableHighAccuracy(false) after stopUpdating.
bool has_changed = enable_high_accuracy_ != enable_high_accuracy;
enable_high_accuracy_ = enable_high_accuracy;
// We have a different accuracy requirement. Request browser to update.
if (geolocation_service_.get() && has_changed)
geolocation_service_->SetHighAccuracy(enable_high_accuracy_);
}
void GeolocationDispatcher::setController(
WebGeolocationController* controller) {
controller_.reset(controller);
}
bool GeolocationDispatcher::lastPosition(WebGeolocationPosition&) {
// The latest position is stored in the browser, not the renderer, so we
// would have to fetch it synchronously to give a good value here. The
// WebCore::GeolocationController already caches the last position it
// receives, so there is not much benefit to more position caching here.
return false;
}
// TODO(jknotten): Change the messages to use a security origin, so no
// conversion is necessary.
void GeolocationDispatcher::requestPermission(
const WebGeolocationPermissionRequest& permissionRequest) {
if (!permission_service_.get()) {
render_frame()->GetServiceRegistry()->ConnectToRemoteService(
&permission_service_);
}
int permission_request_id = pending_permissions_->add(permissionRequest);
permission_service_->RequestPermission(
PERMISSION_NAME_GEOLOCATION,
permissionRequest.securityOrigin().toString().utf8(),
blink::WebUserGestureIndicator::isProcessingUserGesture(),
base::Bind(&GeolocationDispatcher::OnPermissionSet,
base::Unretained(this),
permission_request_id));
}
void GeolocationDispatcher::cancelPermissionRequest(
const blink::WebGeolocationPermissionRequest& permissionRequest) {
int permission_request_id;
pending_permissions_->remove(permissionRequest, permission_request_id);
}
// Permission for using geolocation has been set.
void GeolocationDispatcher::OnPermissionSet(
int permission_request_id,
PermissionStatus status) {
WebGeolocationPermissionRequest permissionRequest;
if (!pending_permissions_->remove(permission_request_id, permissionRequest))
return;
permissionRequest.setIsAllowed(status == PERMISSION_STATUS_GRANTED);
}
void GeolocationDispatcher::OnLocationUpdate(MojoGeopositionPtr geoposition) {
DCHECK(geolocation_service_.get());
if (geoposition->valid) {
controller_->positionChanged(WebGeolocationPosition(
geoposition->timestamp,
geoposition->latitude,
geoposition->longitude,
geoposition->accuracy,
// Lowest point on land is at approximately -400 meters.
geoposition->altitude > -10000.,
geoposition->altitude,
geoposition->altitude_accuracy >= 0.,
geoposition->altitude_accuracy,
geoposition->heading >= 0. && geoposition->heading <= 360.,
geoposition->heading,
geoposition->speed >= 0.,
geoposition->speed));
} else {
WebGeolocationError::Error code;
switch (geoposition->error_code) {
case Geoposition::ERROR_CODE_PERMISSION_DENIED:
code = WebGeolocationError::ErrorPermissionDenied;
break;
case Geoposition::ERROR_CODE_POSITION_UNAVAILABLE:
code = WebGeolocationError::ErrorPositionUnavailable;
break;
default:
NOTREACHED() << geoposition->error_code;
return;
}
controller_->errorOccurred(WebGeolocationError(
code, blink::WebString::fromUTF8(geoposition->error_message)));
}
}
} // namespace content
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