Move GeolocationDispatcher into blink.

third_party/WebKit/Source/modules/geolocation/GeolocationController.cpp

-/*
- * 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 "modules/geolocation/GeolocationController.h"
-
-#include "core/page/Page.h"
-#include "modules/geolocation/GeolocationClient.h"
-#include "modules/geolocation/GeolocationError.h"
-#include "modules/geolocation/GeolocationPosition.h"
-
-namespace blink {
-
-GeolocationController::GeolocationController(LocalFrame& frame, GeolocationClient* client)
-    : PageLifecycleObserver(frame.page())
-    , m_client(client)
-    , m_hasClientForTest(false)
-    , m_isClientUpdating(false)
-{
-    if (!frame.isMainFrame() && frame.page()->mainFrame()->isLocalFrame()) {
-        // 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());
-}
-
-GeolocationController* GeolocationController::create(LocalFrame& frame, GeolocationClient* client)
-{
-    return 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()->isPageVisible())
-            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)
-{
-    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)
-        return m_lastPosition;
-
-    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()->isPageVisible())
-        startUpdatingIfNeeded();
-    else
-        stopUpdatingIfNeeded();
-}
-
-const char* GeolocationController::supplementName()
-{
-    return "GeolocationController";
-}
-
-DEFINE_TRACE(GeolocationController)
-{
-    visitor->trace(m_client);
-    visitor->trace(m_lastPosition);
-    visitor->trace(m_observers);
-    visitor->trace(m_highAccuracyObservers);
-    Supplement<LocalFrame>::trace(visitor);
-    PageLifecycleObserver::trace(visitor);
-}
-
-void provideGeolocationTo(LocalFrame& frame, GeolocationClient* client)
-{
-    Supplement<LocalFrame>::provideTo(frame, GeolocationController::supplementName(), GeolocationController::create(frame, client));
-}
-
-} // namespace blink