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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 * in the documentation and/or other materials provided with the
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 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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#include "core/timing/PerformanceNavigation.h"

#include "bindings/core/v8/ScriptValue.h"
#include "bindings/core/v8/V8ObjectBuilder.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 (!frame())
    return kTypeNavigate;

  DocumentLoader* documentLoader = frame()->loader().documentLoader();
  if (!documentLoader)
    return kTypeNavigate;

  switch (documentLoader->getNavigationType()) {
    case NavigationTypeReload:
      return kTypeReload;
    case NavigationTypeBackForward:
      return kTypeBackForward;
    default:
      return kTypeNavigate;
  }
}

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

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

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

  return timing.redirectCount();
}

ScriptValue PerformanceNavigation::toJSONForBinding(
    ScriptState* scriptState) const {
  V8ObjectBuilder result(scriptState);
  result.addNumber("type", type());
  result.addNumber("redirectCount", redirectCount());
  return result.scriptValue();
}

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

}  // namespace blink