1 files changed, 74 insertions, 0 deletions
diff --git a/chromium/third_party/WebKit/Source/modules/device_light/DeviceLightController.cpp b/chromium/third_party/WebKit/Source/modules/device_light/DeviceLightController.cpp
new file mode 100644
index 00000000000..3768be38631
--- /dev/null
+++ b/chromium/third_party/WebKit/Source/modules/device_light/DeviceLightController.cpp
@@ -0,0 +1,74 @@
+// Copyright 2014 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 "config.h"
+#include "modules/device_light/DeviceLightController.h"
+
+#include "core/dom/Document.h"
+#include "core/frame/LocalDOMWindow.h"
+#include "core/page/Page.h"
+#include "modules/device_light/DeviceLightDispatcher.h"
+#include "modules/device_light/DeviceLightEvent.h"
+#include "platform/RuntimeEnabledFeatures.h"
+
+namespace WebCore {
+
+DeviceLightController::DeviceLightController(Document& document)
+    : DeviceSingleWindowEventController(document)
+{
+}
+
+DeviceLightController::~DeviceLightController()
+{
+    stopUpdating();
+}
+
+const char* DeviceLightController::supplementName()
+{
+    return "DeviceLightController";
+}
+
+DeviceLightController& DeviceLightController::from(Document& document)
+{
+    DeviceLightController* controller = static_cast<DeviceLightController*>(DocumentSupplement::from(document, supplementName()));
+    if (!controller) {
+        controller = new DeviceLightController(document);
+        DocumentSupplement::provideTo(document, supplementName(), adoptPtrWillBeNoop(controller));
+    }
+    return *controller;
+}
+
+bool DeviceLightController::hasLastData()
+{
+    return DeviceLightDispatcher::instance().latestDeviceLightData() >= 0;
+}
+
+void DeviceLightController::registerWithDispatcher()
+{
+    DeviceLightDispatcher::instance().addController(this);
+}
+
+void DeviceLightController::unregisterWithDispatcher()
+{
+    DeviceLightDispatcher::instance().removeController(this);
+}
+
+PassRefPtrWillBeRawPtr<Event> DeviceLightController::lastEvent() const
+{
+    return DeviceLightEvent::create(EventTypeNames::devicelight,
+        DeviceLightDispatcher::instance().latestDeviceLightData());
+}
+
+bool DeviceLightController::isNullEvent(Event* event) const
+{
+    DeviceLightEvent* lightEvent = toDeviceLightEvent(event);
+    return lightEvent->value() == std::numeric_limits<double>::infinity();
+}
+
+const AtomicString& DeviceLightController::eventTypeName() const
+{
+    return EventTypeNames::devicelight;
+}
+
+} // namespace WebCore