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c204c013dd
`ContentEventHandler` works with `PostContentIterator` and `PreContentIterator` when it scans DOM nodes in a range. While iterating the DOM nodes, script never runs. Therefore, we can make `ContentEventHandler` work with new content iterators which do not store nodes with strong pointers. This patch makes `ContentIteratorBase` a template class and create new `UnsafePostContentIterator` and `UnsafePreContentIterator`. They will check whether DOM mutation or GC occurs before destruction to detect dangerous regressions. Differential Revision: https://phabricator.services.mozilla.com/D184441
36 lines
1.1 KiB
C++
36 lines
1.1 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_scriptablecontentiterator_h
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#define mozilla_scriptablecontentiterator_h
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#include "mozilla/Attributes.h"
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#include "mozilla/ContentIterator.h"
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#include "mozilla/UniquePtr.h"
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#include "nsCOMPtr.h"
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#include "nsIScriptableContentIterator.h"
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namespace mozilla {
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class ScriptableContentIterator final : public nsIScriptableContentIterator {
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public:
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ScriptableContentIterator();
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NS_DECL_CYCLE_COLLECTING_ISUPPORTS
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NS_DECL_CYCLE_COLLECTION_CLASS(ScriptableContentIterator)
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NS_DECL_NSISCRIPTABLECONTENTITERATOR
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protected:
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virtual ~ScriptableContentIterator() = default;
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void EnsureContentIterator();
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IteratorType mIteratorType;
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UniquePtr<SafeContentIteratorBase> mContentIterator;
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};
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} // namespace mozilla
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#endif // #ifndef mozilla_scriptablecontentiterator_h
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