blob: 4b7686bcf9e71cfe49437a6ef5487d81b8058085 [file] [log] [blame]
/*
* Copyright (C) 2017 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 "PerformanceObserver.h"
#include "DOMWindow.h"
#include "Document.h"
#include "Performance.h"
#include "PerformanceObserverEntryList.h"
#include "WorkerGlobalScope.h"
namespace WebCore {
PerformanceObserver::PerformanceObserver(ScriptExecutionContext& scriptExecutionContext, Ref<PerformanceObserverCallback>&& callback)
: m_callback(WTFMove(callback))
{
if (is<Document>(scriptExecutionContext)) {
auto& document = downcast<Document>(scriptExecutionContext);
if (DOMWindow* window = document.domWindow())
m_performance = window->performance();
} else if (is<WorkerGlobalScope>(scriptExecutionContext)) {
auto& workerGlobalScope = downcast<WorkerGlobalScope>(scriptExecutionContext);
m_performance = &workerGlobalScope.performance();
} else
ASSERT_NOT_REACHED();
}
void PerformanceObserver::disassociate()
{
m_performance = nullptr;
}
ExceptionOr<void> PerformanceObserver::observe(Init&& init)
{
if (!m_performance)
return Exception { TypeError };
if (init.entryTypes.isEmpty())
return Exception { TypeError, ASCIILiteral("entryTypes cannot be an empty list") };
OptionSet<PerformanceEntry::Type> filter;
for (const String& entryType : init.entryTypes) {
if (auto type = PerformanceEntry::parseEntryTypeString(entryType))
filter |= *type;
}
if (filter.isEmpty())
return Exception { TypeError, ASCIILiteral("entryTypes contained only unsupported types") };
m_typeFilter = filter;
if (!m_registered) {
m_performance->registerPerformanceObserver(*this);
m_registered = true;
}
return { };
}
void PerformanceObserver::disconnect()
{
if (m_performance)
m_performance->unregisterPerformanceObserver(*this);
m_registered = false;
m_entriesToDeliver.clear();
}
void PerformanceObserver::queueEntry(PerformanceEntry& entry)
{
m_entriesToDeliver.append(&entry);
}
void PerformanceObserver::deliver()
{
if (m_entriesToDeliver.isEmpty())
return;
Vector<RefPtr<PerformanceEntry>> entries = WTFMove(m_entriesToDeliver);
auto list = PerformanceObserverEntryList::create(WTFMove(entries));
m_callback->handleEvent(list, *this);
}
} // namespace WebCore