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diff --git a/Source/WebCore/Modules/geolocation/GeolocationController.cpp b/Source/WebCore/Modules/geolocation/GeolocationController.cpp
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+/*
+ * 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 "GeolocationController.h"
+#include "GeolocationPosition.h"
+
+#if ENABLE(CLIENT_BASED_GEOLOCATION)
+
+#include "GeolocationClient.h"
+
+namespace WebCore {
+
+GeolocationController::GeolocationController(Page* page, GeolocationClient* client)
+ : m_page(page)
+ , m_client(client)
+{
+}
+
+GeolocationController::~GeolocationController()
+{
+ ASSERT(m_observers.isEmpty());
+
+ if (m_client)
+ m_client->geolocationDestroyed();
+}
+
+PassOwnPtr<GeolocationController> GeolocationController::create(Page* page, GeolocationClient* client)
+{
+ return adoptPtr(new GeolocationController(page, 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)
+ m_client->startUpdating();
+ }
+}
+
+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())
+ m_client->stopUpdating();
+ 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)
+{
+ m_lastPosition = position;
+ Vector<RefPtr<Geolocation> > observersVector;
+ copyToVector(m_observers, observersVector);
+ for (size_t i = 0; i < observersVector.size(); ++i)
+ observersVector[i]->positionChanged();
+}
+
+void GeolocationController::errorOccurred(GeolocationError* error)
+{
+ Vector<RefPtr<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();
+}
+
+} // namespace WebCore
+
+#endif // ENABLE(CLIENT_BASED_GEOLOCATION)