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/*
* Copyright (C) 2016 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 "PageHeapAgent.h"
#include "CustomElementRegistry.h"
#include "JSCustomElementInterface.h"
#include "JSElement.h"
#include "JSNode.h"
#include <wtf/TZoneMallocInlines.h>
namespace WebCore {
using namespace Inspector;
WTF_MAKE_TZONE_ALLOCATED_IMPL(PageHeapAgent);
PageHeapAgent::PageHeapAgent(PageAgentContext& context)
: WebHeapAgent(context)
, m_instrumentingAgents(context.instrumentingAgents)
{
}
PageHeapAgent::~PageHeapAgent() = default;
Inspector::Protocol::ErrorStringOr<void> PageHeapAgent::enable()
{
auto result = WebHeapAgent::enable();
m_instrumentingAgents.setEnabledPageHeapAgent(this);
return result;
}
Inspector::Protocol::ErrorStringOr<void> PageHeapAgent::disable()
{
m_instrumentingAgents.setEnabledPageHeapAgent(nullptr);
return WebHeapAgent::disable();
}
String PageHeapAgent::heapSnapshotBuilderOverrideClassName(JSC::HeapSnapshotBuilder& builder, JSC::JSCell* cell, const String& currentClassName)
{
if (currentClassName == "HTMLElement") {
if (auto* jsElement = jsDynamicCast<JSElement*>(cell)) {
Ref element = jsElement->wrapped();
if (element->isDefinedCustomElement()) {
if (RefPtr customElementRegistry = element->customElementRegistry()) {
if (RefPtr customElementInterface = customElementRegistry->findInterface(element)) {
if (JSC::JSObject* customElementConstructorObject = customElementInterface->constructor()) {
if (JSC::JSFunction* customElementConstructorFunction = jsDynamicCast<JSC::JSFunction*>(customElementConstructorObject)) {
String customElementClassName = customElementConstructorFunction->calculatedDisplayName(customElementConstructorFunction->vm());
if (!customElementClassName.isNull())
return customElementClassName;
}
}
}
}
}
}
}
return JSC::HeapSnapshotBuilder::Client::heapSnapshotBuilderOverrideClassName(builder, cell, currentClassName);
}
bool PageHeapAgent::heapSnapshotBuilderIsElement(JSC::HeapSnapshotBuilder&, JSC::JSCell* cell)
{
return jsDynamicCast<JSNode*>(cell);
}
void PageHeapAgent::mainFrameNavigated()
{
clearHeapSnapshots();
}
} // namespace WebCore
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