gecko-dev/dom/base/DocGroup.cpp
Cosmin Sabou 6f9a8dd015 Backed out changeset fae7d9814403 (bug 1443443) for mochitest browser-chrome failure on browser_test_performance_metrics.js
--HG--
extra : rebase_source : 03d120899e3898ec18e2fd226973f38d438a156a
2018-03-20 20:31:01 +02:00

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3.0 KiB
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/* -*- 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 "mozilla/dom/DocGroup.h"
#include "mozilla/dom/TabGroup.h"
#include "mozilla/Telemetry.h"
#include "nsIDocShell.h"
#include "nsDOMMutationObserver.h"
namespace mozilla {
namespace dom {
AutoTArray<RefPtr<DocGroup>, 2>* DocGroup::sPendingDocGroups = nullptr;
/* static */ nsresult
DocGroup::GetKey(nsIPrincipal* aPrincipal, nsACString& aKey)
{
// Use GetBaseDomain() to handle things like file URIs, IP address URIs,
// etc. correctly.
nsresult rv = aPrincipal->GetBaseDomain(aKey);
if (NS_FAILED(rv)) {
// We don't really know what to do here. But we should be conservative,
// otherwise it would be possible to reorder two events incorrectly in the
// future if we interrupt at the DocGroup level, so to be safe, use an
// empty string to classify all such documents as belonging to the same
// DocGroup.
aKey.Truncate();
}
return rv;
}
void
DocGroup::RemoveDocument(nsIDocument* aDocument)
{
MOZ_ASSERT(NS_IsMainThread());
MOZ_ASSERT(mDocuments.Contains(aDocument));
mDocuments.RemoveElement(aDocument);
}
DocGroup::DocGroup(TabGroup* aTabGroup, const nsACString& aKey)
: mKey(aKey), mTabGroup(aTabGroup)
{
// This method does not add itself to mTabGroup->mDocGroups as the caller does it for us.
#ifndef RELEASE_OR_BETA
mPerformanceCounter = new mozilla::PerformanceCounter(aKey);
#endif
}
DocGroup::~DocGroup()
{
MOZ_ASSERT(mDocuments.IsEmpty());
if (!NS_IsMainThread()) {
nsIEventTarget* target = EventTargetFor(TaskCategory::Other);
NS_ProxyRelease("DocGroup::mReactionsStack", target, mReactionsStack.forget());
}
mTabGroup->mDocGroups.RemoveEntry(mKey);
}
nsresult
DocGroup::Dispatch(TaskCategory aCategory,
already_AddRefed<nsIRunnable>&& aRunnable)
{
#ifndef RELEASE_OR_BETA
mPerformanceCounter->IncrementDispatchCounter(DispatchCategory(aCategory));
#endif
return mTabGroup->DispatchWithDocGroup(aCategory, Move(aRunnable), this);
}
nsISerialEventTarget*
DocGroup::EventTargetFor(TaskCategory aCategory) const
{
return mTabGroup->EventTargetFor(aCategory);
}
AbstractThread*
DocGroup::AbstractMainThreadFor(TaskCategory aCategory)
{
MOZ_RELEASE_ASSERT(NS_IsMainThread());
return mTabGroup->AbstractMainThreadFor(aCategory);
}
bool*
DocGroup::GetValidAccessPtr()
{
return mTabGroup->GetValidAccessPtr();
}
void
DocGroup::SignalSlotChange(const HTMLSlotElement* aSlot)
{
if (mSignalSlotList.Contains(aSlot)) {
return;
}
mSignalSlotList.AppendElement(const_cast<HTMLSlotElement*>(aSlot));
if (!sPendingDocGroups) {
// Queue a mutation observer compound microtask.
nsDOMMutationObserver::QueueMutationObserverMicroTask();
sPendingDocGroups = new AutoTArray<RefPtr<DocGroup>, 2>;
}
sPendingDocGroups->AppendElement(this);
}
}
}