File: DocumentTiming.cpp

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// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "core/dom/DocumentTiming.h"

#include "core/dom/Document.h"
#include "core/loader/DocumentLoader.h"
#include "platform/instrumentation/tracing/TraceEvent.h"

namespace blink {

DocumentTiming::DocumentTiming(Document& document) : m_document(document) {}

DEFINE_TRACE(DocumentTiming) {
  visitor->trace(m_document);
}

LocalFrame* DocumentTiming::frame() const {
  return m_document ? m_document->frame() : nullptr;
}

void DocumentTiming::notifyDocumentTimingChanged() {
  if (m_document && m_document->loader())
    m_document->loader()->didChangePerformanceTiming();
}

void DocumentTiming::markDomLoading() {
  m_domLoading = monotonicallyIncreasingTime();
  TRACE_EVENT_MARK_WITH_TIMESTAMP1("blink.user_timing,rail", "domLoading",
                                   TraceEvent::toTraceTimestamp(m_domLoading),
                                   "frame", frame());
  notifyDocumentTimingChanged();
}

void DocumentTiming::markDomInteractive() {
  m_domInteractive = monotonicallyIncreasingTime();
  TRACE_EVENT_MARK_WITH_TIMESTAMP1(
      "blink.user_timing,rail", "domInteractive",
      TraceEvent::toTraceTimestamp(m_domInteractive), "frame", frame());
  notifyDocumentTimingChanged();
}

void DocumentTiming::markDomContentLoadedEventStart() {
  m_domContentLoadedEventStart = monotonicallyIncreasingTime();
  TRACE_EVENT_MARK_WITH_TIMESTAMP1(
      "blink.user_timing,rail", "domContentLoadedEventStart",
      TraceEvent::toTraceTimestamp(m_domContentLoadedEventStart), "frame",
      frame());
  notifyDocumentTimingChanged();
}

void DocumentTiming::markDomContentLoadedEventEnd() {
  m_domContentLoadedEventEnd = monotonicallyIncreasingTime();
  TRACE_EVENT_MARK_WITH_TIMESTAMP1(
      "blink.user_timing,rail", "domContentLoadedEventEnd",
      TraceEvent::toTraceTimestamp(m_domContentLoadedEventEnd), "frame",
      frame());
  notifyDocumentTimingChanged();
}

void DocumentTiming::markDomComplete() {
  m_domComplete = monotonicallyIncreasingTime();
  TRACE_EVENT_MARK_WITH_TIMESTAMP1("blink.user_timing,rail", "domComplete",
                                   TraceEvent::toTraceTimestamp(m_domComplete),
                                   "frame", frame());
  notifyDocumentTimingChanged();
}

void DocumentTiming::markFirstLayout() {
  m_firstLayout = monotonicallyIncreasingTime();
  TRACE_EVENT_MARK_WITH_TIMESTAMP1("blink.user_timing,rail", "firstLayout",
                                   TraceEvent::toTraceTimestamp(m_firstLayout),
                                   "frame", frame());
  notifyDocumentTimingChanged();
}

}  // namespace blink