third_party/WebKit/Source/core/timing/PerformanceNavigation.cpp

/*
 * Copyright (C) 2010 Google Inc. All rights reserved.
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 * modification, are permitted provided that the following conditions are
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 *
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 * notice, this list of conditions and the following disclaimer.
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 * in the documentation and/or other materials provided with the
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 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
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#include "core/timing/PerformanceNavigation.h"

#include "core/frame/LocalFrame.h"
#include "core/loader/DocumentLoader.h"
#include "core/loader/FrameLoaderTypes.h"

namespace blink {

PerformanceNavigation::PerformanceNavigation(LocalFrame* frame)
    : DOMWindowProperty(frame)
{
}

unsigned short PerformanceNavigation::type() const
{
    if (!m_frame)
        return TYPE_NAVIGATE;

    DocumentLoader* documentLoader = m_frame->loader().documentLoader();
    if (!documentLoader)
        return TYPE_NAVIGATE;

    switch (documentLoader->getNavigationType()) {
    case NavigationTypeReload:
        return TYPE_RELOAD;
    case NavigationTypeBackForward:
        return TYPE_BACK_FORWARD;
    default:
        return TYPE_NAVIGATE;
    }
}

unsigned short PerformanceNavigation::redirectCount() const
{
    if (!m_frame)
        return 0;

    DocumentLoader* loader = m_frame->loader().documentLoader();
    if (!loader)
        return 0;

    const DocumentLoadTiming& timing = loader->timing();
    if (timing.hasCrossOriginRedirect())
        return 0;

    return timing.redirectCount();
}

DEFINE_TRACE(PerformanceNavigation)
{
    DOMWindowProperty::trace(visitor);
}

} // namespace blink