| /* |
| * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following disclaimer |
| * in the documentation and/or other materials provided with the |
| * distribution. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #pragma once |
| |
| #include <wtf/HashMap.h> |
| #include <wtf/HashSet.h> |
| #include <wtf/Vector.h> |
| #include <wtf/text/AtomicStringImpl.h> |
| |
| namespace WebCore { |
| |
| class Element; |
| class HTMLImageElement; |
| class HTMLLabelElement; |
| class HTMLMapElement; |
| class TreeScope; |
| |
| class DocumentOrderedMap { |
| WTF_MAKE_FAST_ALLOCATED; |
| public: |
| void add(const AtomicStringImpl&, Element&, const TreeScope&); |
| void remove(const AtomicStringImpl&, Element&); |
| void clear(); |
| |
| bool contains(const AtomicStringImpl&) const; |
| bool containsSingle(const AtomicStringImpl&) const; |
| bool containsMultiple(const AtomicStringImpl&) const; |
| |
| // concrete instantiations of the get<>() method template |
| Element* getElementById(const AtomicStringImpl&, const TreeScope&) const; |
| Element* getElementByName(const AtomicStringImpl&, const TreeScope&) const; |
| HTMLMapElement* getElementByMapName(const AtomicStringImpl&, const TreeScope&) const; |
| HTMLImageElement* getElementByUsemap(const AtomicStringImpl&, const TreeScope&) const; |
| HTMLLabelElement* getElementByLabelForAttribute(const AtomicStringImpl&, const TreeScope&) const; |
| Element* getElementByWindowNamedItem(const AtomicStringImpl&, const TreeScope&) const; |
| Element* getElementByDocumentNamedItem(const AtomicStringImpl&, const TreeScope&) const; |
| |
| const Vector<Element*>* getAllElementsById(const AtomicStringImpl&, const TreeScope&) const; |
| |
| private: |
| template <typename KeyMatchingFunction> |
| Element* get(const AtomicStringImpl&, const TreeScope&, const KeyMatchingFunction&) const; |
| |
| struct MapEntry { |
| MapEntry() { } |
| explicit MapEntry(Element* firstElement) |
| : element(firstElement) |
| , count(1) |
| { } |
| |
| Element* element { nullptr }; |
| unsigned count { 0 }; |
| Vector<Element*> orderedList; |
| #if !ASSERT_DISABLED || ENABLE(SECURITY_ASSERTIONS) |
| HashSet<Element*> registeredElements; |
| #endif |
| }; |
| |
| typedef HashMap<const AtomicStringImpl*, MapEntry> Map; |
| |
| mutable Map m_map; |
| }; |
| |
| inline bool DocumentOrderedMap::containsSingle(const AtomicStringImpl& id) const |
| { |
| auto it = m_map.find(&id); |
| return it != m_map.end() && it->value.count == 1; |
| } |
| |
| inline bool DocumentOrderedMap::contains(const AtomicStringImpl& id) const |
| { |
| return m_map.contains(&id); |
| } |
| |
| inline bool DocumentOrderedMap::containsMultiple(const AtomicStringImpl& id) const |
| { |
| auto it = m_map.find(&id); |
| return it != m_map.end() && it->value.count > 1; |
| } |
| |
| } // namespace WebCore |