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// 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 "core/frame/DeviceSingleWindowEventController.h"
#include "core/dom/Document.h"
#include "core/events/Event.h"
#include "core/frame/LocalDOMWindow.h"
#include "core/frame/Settings.h"
#include "core/page/Page.h"
#include "platform/weborigin/SecurityOrigin.h"
namespace blink {
DeviceSingleWindowEventController::DeviceSingleWindowEventController(Document& document)
: PlatformEventController(document.page())
, DOMWindowLifecycleObserver(document.domWindow())
, m_needsCheckingNullEvents(true)
, m_document(document)
{
}
DeviceSingleWindowEventController::~DeviceSingleWindowEventController()
{
}
void DeviceSingleWindowEventController::didUpdateData()
{
if (m_document->frame()->settings()->strictPowerfulFeatureRestrictions()) {
String errorMessage;
if (!m_document->securityOrigin()->canAccessFeatureRequiringSecureOrigin(errorMessage))
return;
}
dispatchDeviceEvent(lastEvent());
}
void DeviceSingleWindowEventController::dispatchDeviceEvent(PassRefPtrWillBeRawPtr<Event> prpEvent)
{
if (!document().domWindow() || document().activeDOMObjectsAreSuspended() || document().activeDOMObjectsAreStopped())
return;
RefPtrWillBeRawPtr<Event> event = prpEvent;
document().domWindow()->dispatchEvent(event);
if (m_needsCheckingNullEvents) {
if (isNullEvent(event.get()))
stopUpdating();
else
m_needsCheckingNullEvents = false;
}
}
void DeviceSingleWindowEventController::didAddEventListener(LocalDOMWindow* window, const AtomicString& eventType)
{
if (eventType != eventTypeName())
return;
if (page() && page()->visibilityState() == PageVisibilityStateVisible)
startUpdating();
m_hasEventListener = true;
}
void DeviceSingleWindowEventController::didRemoveEventListener(LocalDOMWindow* window, const AtomicString& eventType)
{
if (eventType != eventTypeName() || window->hasEventListeners(eventTypeName()))
return;
stopUpdating();
m_hasEventListener = false;
}
void DeviceSingleWindowEventController::didRemoveAllEventListeners(LocalDOMWindow*)
{
stopUpdating();
m_hasEventListener = false;
}
void DeviceSingleWindowEventController::trace(Visitor* visitor)
{
visitor->trace(m_document);
PlatformEventController::trace(visitor);
DOMWindowLifecycleObserver::trace(visitor);
}
} // namespace blink
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