| /* |
| * Copyright (C) 2009 Apple Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
| * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS |
| * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
| * THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include "config.h" |
| |
| #include "modules/geolocation/GeolocationController.h" |
| |
| #include "core/inspector/InspectorController.h" |
| #include "core/page/Page.h" |
| #include "modules/geolocation/GeolocationClient.h" |
| #include "modules/geolocation/GeolocationError.h" |
| #include "modules/geolocation/GeolocationInspectorAgent.h" |
| #include "modules/geolocation/GeolocationPosition.h" |
| |
| namespace WebCore { |
| |
| GeolocationController::GeolocationController(LocalFrame& frame, GeolocationClient* client) |
| : PageLifecycleObserver(frame.page()) |
| , m_client(client) |
| , m_hasClientForTest(false) |
| , m_isClientUpdating(false) |
| , m_inspectorAgent() |
| { |
| // FIXME: Once GeolocationInspectorAgent is per frame, there will be a 1:1 relationship between |
| // it and this class. Until then, there's one GeolocationInspectorAgent per page that the main |
| // frame is responsible for creating. |
| if (frame.isMainFrame()) { |
| OwnPtr<GeolocationInspectorAgent> geolocationAgent(GeolocationInspectorAgent::create()); |
| m_inspectorAgent = geolocationAgent.get(); |
| frame.page()->inspectorController().registerModuleAgent(geolocationAgent.release()); |
| } else { |
| m_inspectorAgent = GeolocationController::from(frame.page()->deprecatedLocalMainFrame())->m_inspectorAgent; |
| } |
| |
| m_inspectorAgent->AddController(this); |
| |
| if (!frame.isMainFrame()) { |
| // internals.setGeolocationClientMock is per page. |
| GeolocationController* mainController = GeolocationController::from(frame.page()->deprecatedLocalMainFrame()); |
| if (mainController->hasClientForTest()) |
| setClientForTest(mainController->client()); |
| } |
| } |
| |
| void GeolocationController::startUpdatingIfNeeded() |
| { |
| if (m_isClientUpdating) |
| return; |
| m_isClientUpdating = true; |
| m_client->startUpdating(); |
| } |
| |
| void GeolocationController::stopUpdatingIfNeeded() |
| { |
| if (!m_isClientUpdating) |
| return; |
| m_isClientUpdating = false; |
| m_client->stopUpdating(); |
| } |
| |
| GeolocationController::~GeolocationController() |
| { |
| ASSERT(m_observers.isEmpty()); |
| if (page()) |
| m_inspectorAgent->RemoveController(this); |
| |
| if (m_hasClientForTest) |
| m_client->controllerForTestRemoved(this); |
| } |
| |
| // FIXME: Oilpan: Once GeolocationClient is on-heap m_client should be a strong |
| // pointer and |willBeDestroyed| can potentially be removed from Supplement. |
| void GeolocationController::willBeDestroyed() |
| { |
| if (m_client) |
| m_client->geolocationDestroyed(); |
| } |
| |
| void GeolocationController::persistentHostHasBeenDestroyed() |
| { |
| observeContext(0); |
| } |
| |
| PassOwnPtrWillBeRawPtr<GeolocationController> GeolocationController::create(LocalFrame& frame, GeolocationClient* client) |
| { |
| return adoptPtrWillBeNoop(new GeolocationController(frame, client)); |
| } |
| |
| void GeolocationController::addObserver(Geolocation* observer, bool enableHighAccuracy) |
| { |
| // This may be called multiple times with the same observer, though removeObserver() |
| // is called only once with each. |
| bool wasEmpty = m_observers.isEmpty(); |
| m_observers.add(observer); |
| if (enableHighAccuracy) |
| m_highAccuracyObservers.add(observer); |
| |
| if (m_client) { |
| if (enableHighAccuracy) |
| m_client->setEnableHighAccuracy(true); |
| if (wasEmpty && page() && page()->visibilityState() == PageVisibilityStateVisible) |
| startUpdatingIfNeeded(); |
| } |
| } |
| |
| void GeolocationController::removeObserver(Geolocation* observer) |
| { |
| if (!m_observers.contains(observer)) |
| return; |
| |
| m_observers.remove(observer); |
| m_highAccuracyObservers.remove(observer); |
| |
| if (m_client) { |
| if (m_observers.isEmpty()) |
| stopUpdatingIfNeeded(); |
| else if (m_highAccuracyObservers.isEmpty()) |
| m_client->setEnableHighAccuracy(false); |
| } |
| } |
| |
| void GeolocationController::requestPermission(Geolocation* geolocation) |
| { |
| if (m_client) |
| m_client->requestPermission(geolocation); |
| } |
| |
| void GeolocationController::cancelPermissionRequest(Geolocation* geolocation) |
| { |
| if (m_client) |
| m_client->cancelPermissionRequest(geolocation); |
| } |
| |
| void GeolocationController::positionChanged(GeolocationPosition* position) |
| { |
| position = m_inspectorAgent->overrideGeolocationPosition(position); |
| if (!position) { |
| errorOccurred(GeolocationError::create(GeolocationError::PositionUnavailable, "PositionUnavailable")); |
| return; |
| } |
| m_lastPosition = position; |
| HeapVector<Member<Geolocation> > observersVector; |
| copyToVector(m_observers, observersVector); |
| for (size_t i = 0; i < observersVector.size(); ++i) |
| observersVector[i]->positionChanged(); |
| } |
| |
| void GeolocationController::errorOccurred(GeolocationError* error) |
| { |
| HeapVector<Member<Geolocation> > observersVector; |
| copyToVector(m_observers, observersVector); |
| for (size_t i = 0; i < observersVector.size(); ++i) |
| observersVector[i]->setError(error); |
| } |
| |
| GeolocationPosition* GeolocationController::lastPosition() |
| { |
| if (m_lastPosition.get()) |
| return m_lastPosition.get(); |
| |
| if (!m_client) |
| return 0; |
| |
| return m_client->lastPosition(); |
| } |
| |
| void GeolocationController::setClientForTest(GeolocationClient* client) |
| { |
| if (m_hasClientForTest) |
| m_client->controllerForTestRemoved(this); |
| m_client = client; |
| m_hasClientForTest = true; |
| |
| client->controllerForTestAdded(this); |
| } |
| |
| void GeolocationController::pageVisibilityChanged() |
| { |
| if (m_observers.isEmpty() || !m_client) |
| return; |
| |
| if (page() && page()->visibilityState() == PageVisibilityStateVisible) |
| startUpdatingIfNeeded(); |
| else |
| stopUpdatingIfNeeded(); |
| } |
| |
| const char* GeolocationController::supplementName() |
| { |
| return "GeolocationController"; |
| } |
| |
| void GeolocationController::trace(Visitor* visitor) |
| { |
| visitor->trace(m_lastPosition); |
| visitor->trace(m_observers); |
| visitor->trace(m_highAccuracyObservers); |
| WillBeHeapSupplement<LocalFrame>::trace(visitor); |
| } |
| |
| void provideGeolocationTo(LocalFrame& frame, GeolocationClient* client) |
| { |
| WillBeHeapSupplement<LocalFrame>::provideTo(frame, GeolocationController::supplementName(), GeolocationController::create(frame, client)); |
| } |
| |
| } // namespace WebCore |