Keith Cirkel
0a56fc2635
Sanitizing while parsing needs to insert content at a position other than the end of a parent's child list, because content whose parent the sanitizer replaced with its children keeps the position that parent would have had. This change prepares for that, without any sanitizer-visible behaviour: - The node, text and comment insertion paths are factored into PrepareForInsertion(), InsertNodeBefore(), InsertTextImpl() and InsertCommentImpl(), and gain InsertBefore(), InsertTextBefore() and InsertCommentBefore() variants that take the node to insert before, - GetFosterParent() is split so that GetFosterParentForInsertBefore() exposes the foster parent to insert before the table in, without the stack parent fallback, - IsElementOrTemplateContent() becomes IsPossibleFosterParent(): the spec says "if the adjusted insertion location's last table has a parent node", and any parent node qualifies, including the DocumentFragment that roots a fragment parse, - nsHtml5HtmlAttributes gains entryAt() and removeAttributeAt(), so that a start tag token's attributes can be filtered before they reach the element. Differential Revision: https://phabricator.services.mozilla.com/D320669
114 lines
3.6 KiB
C++
114 lines
3.6 KiB
C++
/*
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* Copyright (c) 2007 Henri Sivonen
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* Copyright (c) 2008-2017 Mozilla Foundation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#ifndef nsHtml5HtmlAttributes_h
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#define nsHtml5HtmlAttributes_h
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#include "nsAtom.h"
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#include "nsHtml5AtomTable.h"
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#include "nsHtml5String.h"
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#include "nsNameSpaceManager.h"
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#include "nsIContent.h"
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#include "nsTraceRefcnt.h"
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#include "jArray.h"
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#include "nsHtml5ArrayCopy.h"
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#include "nsAHtml5TreeBuilderState.h"
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#include "nsHtml5ByteReadable.h"
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#include "nsHtml5Macros.h"
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#include "nsIContentHandle.h"
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#include "nsTArray.h"
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#include "nsHtml5AttributeEntry.h"
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class nsHtml5StreamParser;
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class nsHtml5Tokenizer;
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class nsHtml5TreeBuilder;
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class nsHtml5AttributeName;
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class nsHtml5ElementName;
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class nsHtml5UTF16Buffer;
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class nsHtml5StateSnapshot;
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class nsHtml5Portability;
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class nsHtml5HtmlAttributes {
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public:
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static nsHtml5HtmlAttributes* EMPTY_ATTRIBUTES;
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private:
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AutoTArray<nsHtml5AttributeEntry, 5> mStorage;
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bool mDuplicateAttributeError = false;
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#ifdef DEBUG
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bool mMovedFrom = false;
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#endif
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void AddEntry(nsHtml5AttributeEntry&& aEntry);
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public:
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explicit nsHtml5HtmlAttributes(int32_t aMode);
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~nsHtml5HtmlAttributes();
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void setDuplicateAttributeError() { mDuplicateAttributeError = true; }
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bool getDuplicateAttributeError() { return mDuplicateAttributeError; }
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// We know we don't add/remove attributes during iteration,
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// so using raw pointer iterator for performance.
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nsHtml5AttributeEntry* begin() { return mStorage.Elements(); }
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nsHtml5AttributeEntry* end() {
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return mStorage.Elements() + mStorage.Length();
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}
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#ifdef DEBUG
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void MarkAsMovedFrom() {
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// Don't mark the empty attributes as moved from
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MOZ_ASSERT(!mStorage.IsEmpty());
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mMovedFrom = true;
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}
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#endif
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nsHtml5String getValue(nsHtml5AttributeName* aName);
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int32_t getLength();
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nsHtml5AttributeEntry& entryAt(int32_t aIndex) {
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MOZ_ASSERT(!mMovedFrom);
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MOZ_ASSERT(aIndex >= 0 && aIndex < getLength());
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return mStorage[aIndex];
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}
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void removeAttributeAt(int32_t aIndex) {
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MOZ_ASSERT(!mMovedFrom);
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MOZ_ASSERT(aIndex >= 0 && aIndex < getLength());
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mStorage.RemoveElementAt(aIndex);
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}
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bool isEmpty() { return getLength() == 0; }
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void addAttribute(nsHtml5AttributeName* aName, nsHtml5String aValue,
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int32_t aLine);
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void clear(int32_t aMode);
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bool contains(nsHtml5AttributeName* aName);
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void adjustForMath() {};
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void adjustForSvg() {};
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nsHtml5HtmlAttributes* cloneAttributes();
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bool equalsAnother(nsHtml5HtmlAttributes* aOther);
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static void initializeStatics();
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static void releaseStatics();
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};
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#endif
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