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/*
* Copyright (C) 2012 Google, 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 GOOGLE INC. ``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 COMPUTER, INC. OR
* 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 "FeatureObserver.h"
#include "DOMWindow.h"
#include "Document.h"
#include "HistogramSupport.h"
#include "Page.h"
namespace WebCore {
FeatureObserver::FeatureObserver()
: m_featureMask(0)
{
}
FeatureObserver::~FeatureObserver()
{
// We always log PageDestruction so that we have a scale for the rest of the features.
HistogramSupport::histogramEnumeration("WebCore.FeatureObserver", PageDestruction, NumberOfFeatures);
if (!m_featureMask)
return;
for (int i = 0; i < NumberOfFeatures; ++i) {
if (m_featureMask & (1 << i))
HistogramSupport::histogramEnumeration("WebCore.FeatureObserver", i, NumberOfFeatures);
}
}
void FeatureObserver::observe(DOMWindow* domWindow, Feature feature)
{
ASSERT(domWindow);
Document* document = domWindow->document();
if (!document)
return;
Page* page = document->page();
if (!page)
return;
page->featureObserver()->didObserve(feature);
}
} // namespace WebCore
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