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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: NPL 1.1/GPL 2.0/LGPL 2.1
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* The contents of this file are subject to the Netscape Public License
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* Version 1.1 (the "License"); you may not use this file except in
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* compliance with the License. You may obtain a copy of the License at
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* http://www.mozilla.org/NPL/
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* The Original Code is Mozilla Communicator client code.
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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* Chris Waterson <waterson@netscape.com>
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the NPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the NPL, the GPL or the LGPL.
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* ***** END LICENSE BLOCK ***** */
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#ifndef nsContentTestNode_h__
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#define nsContentTestNode_h__
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#include "nsRuleNetwork.h"
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#include "nsFixedSizeAllocator.h"
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class nsIXULTemplateBuilder;
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class nsContentTestNode : public TestNode
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nsContentTestNode(InnerNode* aParent,
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nsConflictSet& aConflictSet,
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nsIXULDocument* aDocument,
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nsIXULTemplateBuilder* aBuilder,
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PRInt32 aContentVariable,
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FilterInstantiations(InstantiationSet& aInstantiations, void* aClosure) const;
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GetAncestorVariables(VariableSet& aVariables) const;
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class Element : public MemoryElement {
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// Hide so that only Create() and Destroy() can be used to
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// allocate and deallocate from the heap
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static void* operator new(size_t) CPP_THROW_NEW { return 0; }
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static void operator delete(void*, size_t) {}
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Element(nsIContent* aContent)
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: mContent(aContent) {
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MOZ_COUNT_CTOR(nsContentTestNode::Element); }
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virtual ~Element() { MOZ_COUNT_DTOR(nsContentTestNode::Element); }
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Create(nsFixedSizeAllocator& aPool, nsIContent* aContent) {
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void* place = aPool.Alloc(sizeof(Element));
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return place ? ::new (place) Element(aContent) : nsnull; }
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Destroy(nsFixedSizeAllocator& aPool, Element* aElement) {
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aPool.Free(aElement, sizeof(*aElement)); }
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virtual const char* Type() const {
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return "nsContentTestNode::Element"; }
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virtual PLHashNumber Hash() const {
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return PLHashNumber(NS_PTR_TO_INT32(mContent.get())) >> 2; }
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virtual PRBool Equals(const MemoryElement& aElement) const {
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if (aElement.Type() == Type()) {
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const Element& element = NS_STATIC_CAST(const Element&, aElement);
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return mContent == element.mContent;
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virtual MemoryElement* Clone(void* aPool) const {
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return Create(*NS_STATIC_CAST(nsFixedSizeAllocator*, aPool), mContent); }
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nsCOMPtr<nsIContent> mContent;
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nsConflictSet& mConflictSet;
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nsIXULDocument* mDocument; // [WEAK] because we know the document will outlive us
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nsIXULTemplateBuilder *mBuilder;
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PRInt32 mContentVariable;
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nsCOMPtr<nsIAtom> mTag;
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#endif // nsContentTestNode_h__