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// Copyright 2018 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 "third_party/blink/renderer/core/timing/largest_contentful_paint.h"
#include "third_party/blink/renderer/bindings/core/v8/v8_object_builder.h"
#include "third_party/blink/renderer/core/dom/document.h"
#include "third_party/blink/renderer/core/performance_entry_names.h"
#include "third_party/blink/renderer/platform/wtf/text/atomic_string.h"
namespace blink {
LargestContentfulPaint::LargestContentfulPaint(double start_time,
base::TimeDelta render_time,
uint64_t size,
base::TimeDelta load_time,
const AtomicString& id,
const String& url,
Element* element)
: PerformanceEntry(g_empty_atom, start_time, start_time),
size_(size),
render_time_(render_time),
load_time_(load_time),
id_(id),
url_(url),
element_(element) {}
LargestContentfulPaint::~LargestContentfulPaint() = default;
AtomicString LargestContentfulPaint::entryType() const {
return performance_entry_names::kLargestContentfulPaint;
}
PerformanceEntryType LargestContentfulPaint::EntryTypeEnum() const {
return PerformanceEntry::EntryType::kLargestContentfulPaint;
}
Element* LargestContentfulPaint::element() const {
if (!element_ || !element_->isConnected() || element_->IsInShadowTree())
return nullptr;
// Do not expose |element_| when the document is not 'fully active'.
const Document& document = element_->GetDocument();
if (!document.IsActive() || !document.GetFrame())
return nullptr;
return element_;
}
void LargestContentfulPaint::BuildJSONValue(V8ObjectBuilder& builder) const {
PerformanceEntry::BuildJSONValue(builder);
builder.Add("size", size_);
builder.Add("renderTime", render_time_.InMillisecondsF());
builder.Add("loadTime", load_time_.InMillisecondsF());
builder.Add("id", id_);
builder.Add("url", url_);
builder.Add("element", element());
}
void LargestContentfulPaint::Trace(Visitor* visitor) {
visitor->Trace(element_);
PerformanceEntry::Trace(visitor);
}
} // namespace blink
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