gecko-dev/dom/performance/PerformanceEntry.cpp
Sean Feng 4c30f0fb30 Bug 1667836 - Make performance entries may have different should add entry algorithm r=smaug
According to https://w3c.github.io/timing-entrytypes-registry/#registry,
unlike other performance entries, `event` and `first-input` entries have
their own algorithms to determine whether it can be added to observers.
This patch factors some code to allow such algorithms can be
implemented.

Differential Revision: https://phabricator.services.mozilla.com/D102034
2021-02-09 18:54:46 +00:00

55 lines
1.7 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "PerformanceEntry.h"
#include "MainThreadUtils.h"
using namespace mozilla::dom;
NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(PerformanceEntry, mParent)
NS_IMPL_CYCLE_COLLECTING_ADDREF(PerformanceEntry)
NS_IMPL_CYCLE_COLLECTING_RELEASE(PerformanceEntry)
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(PerformanceEntry)
NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
NS_INTERFACE_MAP_ENTRY(nsISupports)
NS_INTERFACE_MAP_END
PerformanceEntry::PerformanceEntry(nsISupports* aParent, const nsAString& aName,
const nsAString& aEntryType)
: mParent(aParent),
mName(NS_Atomize(aName)),
mEntryType(NS_Atomize(aEntryType)) {}
PerformanceEntry::~PerformanceEntry() = default;
size_t PerformanceEntry::SizeOfExcludingThis(
mozilla::MallocSizeOf aMallocSizeOf) const {
// mName and mEntryType are considered to be owned by nsAtomTable.
return 0;
}
size_t PerformanceEntry::SizeOfIncludingThis(
mozilla::MallocSizeOf aMallocSizeOf) const {
return aMallocSizeOf(this) + SizeOfExcludingThis(aMallocSizeOf);
}
bool PerformanceEntry::ShouldAddEntryToObserverBuffer(
PerformanceObserverInit& aOption) const {
if (aOption.mType.WasPassed()) {
if (GetEntryType()->Equals(aOption.mType.Value())) {
return true;
}
} else {
if (aOption.mEntryTypes.Value().Contains(
nsDependentAtomString(GetEntryType()))) {
return true;
}
}
return false;
}