2 * Copyright 2010 Apple Inc. All rights reserved.
3 * Copyright (C) 2012 Samsung Electronics. All rights reserved.
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11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 #include "modules/device_orientation/DeviceOrientationController.h"
30 #include "RuntimeEnabledFeatures.h"
31 #include "core/dom/Document.h"
32 #include "core/page/Page.h"
33 #include "modules/device_orientation/DeviceOrientationData.h"
34 #include "modules/device_orientation/DeviceOrientationDispatcher.h"
35 #include "modules/device_orientation/DeviceOrientationEvent.h"
39 DeviceOrientationController::DeviceOrientationController(Document& document)
40 : DeviceSensorEventController(document)
41 , DOMWindowLifecycleObserver(document.domWindow())
45 DeviceOrientationController::~DeviceOrientationController()
50 void DeviceOrientationController::didChangeDeviceOrientation(DeviceOrientationData* deviceOrientationData)
52 if (m_overrideOrientationData)
54 dispatchDeviceEvent(DeviceOrientationEvent::create(EventTypeNames::deviceorientation, deviceOrientationData));
57 const char* DeviceOrientationController::supplementName()
59 return "DeviceOrientationController";
62 DeviceOrientationController& DeviceOrientationController::from(Document& document)
64 DeviceOrientationController* controller = static_cast<DeviceOrientationController*>(DocumentSupplement::from(document, supplementName()));
66 controller = new DeviceOrientationController(document);
67 DocumentSupplement::provideTo(document, supplementName(), adoptPtr(controller));
72 DeviceOrientationData* DeviceOrientationController::lastData()
74 return m_overrideOrientationData ? m_overrideOrientationData.get() : DeviceOrientationDispatcher::instance().latestDeviceOrientationData();
77 bool DeviceOrientationController::hasLastData()
82 PassRefPtr<Event> DeviceOrientationController::getLastEvent()
84 return DeviceOrientationEvent::create(EventTypeNames::deviceorientation, lastData());
87 void DeviceOrientationController::registerWithDispatcher()
89 DeviceOrientationDispatcher::instance().addDeviceOrientationController(this);
92 void DeviceOrientationController::unregisterWithDispatcher()
94 DeviceOrientationDispatcher::instance().removeDeviceOrientationController(this);
97 bool DeviceOrientationController::isNullEvent(Event* event)
99 DeviceOrientationEvent* orientationEvent = toDeviceOrientationEvent(event);
100 return !orientationEvent->orientation()->canProvideEventData();
103 void DeviceOrientationController::didAddEventListener(DOMWindow* window, const AtomicString& eventType)
105 if (eventType == EventTypeNames::deviceorientation && RuntimeEnabledFeatures::deviceOrientationEnabled()) {
106 if (page() && page()->visibilityState() == PageVisibilityStateVisible)
108 m_hasEventListener = true;
112 void DeviceOrientationController::didRemoveEventListener(DOMWindow* window, const AtomicString& eventType)
114 if (eventType == EventTypeNames::deviceorientation) {
116 m_hasEventListener = false;
120 void DeviceOrientationController::didRemoveAllEventListeners(DOMWindow* window)
123 m_hasEventListener = false;
126 void DeviceOrientationController::setOverride(DeviceOrientationData* deviceOrientationData)
128 m_overrideOrientationData.clear();
129 didChangeDeviceOrientation(deviceOrientationData);
130 m_overrideOrientationData = deviceOrientationData;
133 void DeviceOrientationController::clearOverride()
135 if (!m_overrideOrientationData)
137 m_overrideOrientationData.clear();
138 DeviceOrientationData* orientation = lastData();
140 didChangeDeviceOrientation(orientation);
143 } // namespace WebCore