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// Copyright 2019 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.
#ifndef THIRD_PARTY_BLINK_RENDERER_CORE_TIMING_LARGEST_CONTENTFUL_PAINT_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_TIMING_LARGEST_CONTENTFUL_PAINT_H_
#include "third_party/blink/renderer/core/core_export.h"
#include "third_party/blink/renderer/core/dom/element.h"
#include "third_party/blink/renderer/core/timing/performance_entry.h"
#include "third_party/blink/renderer/platform/wtf/casting.h"
namespace blink {
// Exposes the Largest Contenful Paint, computed as described in
// https://github.com/WICG/LargestContentfulPaint.
class CORE_EXPORT LargestContentfulPaint final : public PerformanceEntry {
DEFINE_WRAPPERTYPEINFO();
public:
LargestContentfulPaint(double start_time,
base::TimeDelta render_time,
uint64_t size,
base::TimeDelta load_time,
const AtomicString& id,
const String& url,
Element*);
~LargestContentfulPaint() override;
AtomicString entryType() const override;
PerformanceEntryType EntryTypeEnum() const override;
uint64_t size() const { return size_; }
DOMHighResTimeStamp renderTime() const {
return render_time_.InMillisecondsF();
}
DOMHighResTimeStamp loadTime() const { return load_time_.InMillisecondsF(); }
const AtomicString& id() const { return id_; }
const String& url() const { return url_; }
Element* element() const;
void Trace(Visitor*) const override;
private:
void BuildJSONValue(V8ObjectBuilder&) const override;
uint64_t size_;
base::TimeDelta render_time_;
base::TimeDelta load_time_;
AtomicString id_;
String url_;
WeakMember<Element> element_;
};
template <>
struct DowncastTraits<LargestContentfulPaint> {
static bool AllowFrom(const PerformanceEntry& entry) {
return entry.EntryTypeEnum() ==
PerformanceEntry::EntryType::kLargestContentfulPaint;
}
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_CORE_TIMING_LARGEST_CONTENTFUL_PAINT_H_
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