cef/libcef/browser/geolocation_impl.cc

107 lines
3.3 KiB
C++

// Copyright (c) 2012 The Chromium Embedded Framework 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 "include/cef_geolocation.h"
#include "libcef/browser/context.h"
#include "libcef/browser/thread_util.h"
#include "libcef/common/time_util.h"
#include "base/logging.h"
#include "device/geolocation/geolocation_provider.h"
#include "device/geolocation/geoposition.h"
namespace {
class CefLocationRequest
: public base::RefCountedThreadSafe<CefLocationRequest> {
public:
explicit CefLocationRequest(CefRefPtr<CefGetGeolocationCallback> callback)
: callback_(callback) {
CEF_REQUIRE_UIT();
geo_callback_ = base::Bind(&CefLocationRequest::OnLocationUpdate, this);
device::GeolocationProvider* provider =
device::GeolocationProvider::GetInstance();
subscription_ = provider->AddLocationUpdateCallback(geo_callback_, true);
provider->UserDidOptIntoLocationServices();
}
private:
friend class base::RefCountedThreadSafe<CefLocationRequest>;
~CefLocationRequest() {}
void OnLocationUpdate(const device::Geoposition& position) {
CEF_REQUIRE_UIT();
if (callback_.get()) {
CefGeoposition cef_position;
SetPosition(position, cef_position);
callback_->OnLocationUpdate(cef_position);
callback_ = NULL;
}
subscription_.reset();
geo_callback_.Reset();
}
void SetPosition(const device::Geoposition& source, CefGeoposition& target) {
target.latitude = source.latitude;
target.longitude = source.longitude;
target.altitude = source.altitude;
target.accuracy = source.accuracy;
target.altitude_accuracy = source.altitude_accuracy;
target.heading = source.heading;
target.speed = source.speed;
cef_time_from_basetime(source.timestamp, target.timestamp);
switch (source.error_code) {
case device::Geoposition::ERROR_CODE_NONE:
target.error_code = GEOPOSITON_ERROR_NONE;
break;
case device::Geoposition::ERROR_CODE_PERMISSION_DENIED:
target.error_code = GEOPOSITON_ERROR_PERMISSION_DENIED;
break;
case device::Geoposition::ERROR_CODE_POSITION_UNAVAILABLE:
target.error_code = GEOPOSITON_ERROR_POSITION_UNAVAILABLE;
break;
case device::Geoposition::ERROR_CODE_TIMEOUT:
target.error_code = GEOPOSITON_ERROR_TIMEOUT;
break;
}
CefString(&target.error_message) = source.error_message;
}
CefRefPtr<CefGetGeolocationCallback> callback_;
device::GeolocationProvider::LocationUpdateCallback geo_callback_;
std::unique_ptr<device::GeolocationProvider::Subscription> subscription_;
DISALLOW_COPY_AND_ASSIGN(CefLocationRequest);
};
} // namespace
bool CefGetGeolocation(CefRefPtr<CefGetGeolocationCallback> callback) {
if (!CONTEXT_STATE_VALID()) {
NOTREACHED() << "context not valid";
return false;
}
if (!callback.get()) {
NOTREACHED() << "invalid parameter";
return false;
}
if (CEF_CURRENTLY_ON_UIT()) {
if (device::GeolocationProvider::GetInstance()) {
// Will be released after the callback executes.
new CefLocationRequest(callback);
return true;
}
return false;
} else {
CEF_POST_TASK(CEF_UIT,
base::Bind(base::IgnoreResult(CefGetGeolocation), callback));
return true;
}
}