michael@0: /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* vim: set ts=8 sts=2 et sw=2 tw=80: */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: /*
michael@0:  * Class that represents a prefix/namespace/localName triple; a single
michael@0:  * nodeinfo is shared by all elements in a document that have that
michael@0:  * prefix, namespace, and localName.
michael@0:  */
michael@0: 
michael@0: #ifndef nsNodeInfo_h___
michael@0: #define nsNodeInfo_h___
michael@0: 
michael@0: #include "mozilla/Attributes.h"
michael@0: #include "nsINodeInfo.h"
michael@0: #include "nsNodeInfoManager.h"
michael@0: #include "plhash.h"
michael@0: #include "nsIAtom.h"
michael@0: #include "nsCOMPtr.h"
michael@0: #include "nsIDOMNode.h"
michael@0: #include "nsGkAtoms.h"
michael@0: 
michael@0: class nsNodeInfo : public nsINodeInfo
michael@0: {
michael@0: public:
michael@0:   NS_DECL_CYCLE_COLLECTING_ISUPPORTS
michael@0:   NS_DECL_CYCLE_COLLECTION_SKIPPABLE_CLASS(nsNodeInfo)
michael@0: 
michael@0:   // nsINodeInfo
michael@0:   virtual void GetNamespaceURI(nsAString& aNameSpaceURI) const;
michael@0:   virtual bool NamespaceEquals(const nsAString& aNamespaceURI) const MOZ_OVERRIDE;
michael@0: 
michael@0:   // nsNodeInfo
michael@0: public:
michael@0:   /*
michael@0:    * aName and aOwnerManager may not be null.
michael@0:    */
michael@0:   nsNodeInfo(nsIAtom *aName, nsIAtom *aPrefix, int32_t aNamespaceID,
michael@0:              uint16_t aNodeType, nsIAtom *aExtraName,
michael@0:              nsNodeInfoManager *aOwnerManager);
michael@0: 
michael@0: private:
michael@0:   nsNodeInfo(); // Unimplemented
michael@0:   nsNodeInfo(const nsNodeInfo& aOther); // Unimplemented
michael@0: protected:
michael@0:   virtual ~nsNodeInfo();
michael@0: 
michael@0: public:
michael@0:   bool CanSkip();
michael@0: 
michael@0: private:
michael@0:   /**
michael@0:    * This method gets called by Release() when it's time to delete
michael@0:    * this object.
michael@0:    */
michael@0:   void LastRelease();
michael@0: };
michael@0: 
michael@0: inline void
michael@0: CheckValidNodeInfo(uint16_t aNodeType, nsIAtom *aName, int32_t aNamespaceID,
michael@0:                    nsIAtom* aExtraName)
michael@0: {
michael@0:   NS_ABORT_IF_FALSE(aNodeType == nsIDOMNode::ELEMENT_NODE ||
michael@0:                     aNodeType == nsIDOMNode::ATTRIBUTE_NODE ||
michael@0:                     aNodeType == nsIDOMNode::TEXT_NODE ||
michael@0:                     aNodeType == nsIDOMNode::CDATA_SECTION_NODE ||
michael@0:                     aNodeType == nsIDOMNode::PROCESSING_INSTRUCTION_NODE ||
michael@0:                     aNodeType == nsIDOMNode::COMMENT_NODE ||
michael@0:                     aNodeType == nsIDOMNode::DOCUMENT_NODE ||
michael@0:                     aNodeType == nsIDOMNode::DOCUMENT_TYPE_NODE ||
michael@0:                     aNodeType == nsIDOMNode::DOCUMENT_FRAGMENT_NODE ||
michael@0:                     aNodeType == UINT16_MAX,
michael@0:                     "Invalid nodeType");
michael@0:   NS_ABORT_IF_FALSE((aNodeType == nsIDOMNode::PROCESSING_INSTRUCTION_NODE ||
michael@0:                      aNodeType == nsIDOMNode::DOCUMENT_TYPE_NODE) ==
michael@0:                     !!aExtraName,
michael@0:                     "Supply aExtraName for and only for PIs and doctypes");
michael@0:   NS_ABORT_IF_FALSE(aNodeType == nsIDOMNode::ELEMENT_NODE ||
michael@0:                     aNodeType == nsIDOMNode::ATTRIBUTE_NODE ||
michael@0:                     aNodeType == UINT16_MAX ||
michael@0:                     aNamespaceID == kNameSpaceID_None,
michael@0:                     "Only attributes and elements can be in a namespace");
michael@0:   NS_ABORT_IF_FALSE(aName && aName != nsGkAtoms::_empty, "Invalid localName");
michael@0:   NS_ABORT_IF_FALSE(((aNodeType == nsIDOMNode::TEXT_NODE) ==
michael@0:                      (aName == nsGkAtoms::textTagName)) &&
michael@0:                     ((aNodeType == nsIDOMNode::CDATA_SECTION_NODE) ==
michael@0:                      (aName == nsGkAtoms::cdataTagName)) &&
michael@0:                     ((aNodeType == nsIDOMNode::COMMENT_NODE) ==
michael@0:                      (aName == nsGkAtoms::commentTagName)) &&
michael@0:                     ((aNodeType == nsIDOMNode::DOCUMENT_NODE) ==
michael@0:                      (aName == nsGkAtoms::documentNodeName)) &&
michael@0:                     ((aNodeType == nsIDOMNode::DOCUMENT_FRAGMENT_NODE) ==
michael@0:                      (aName == nsGkAtoms::documentFragmentNodeName)) &&
michael@0:                     ((aNodeType == nsIDOMNode::DOCUMENT_TYPE_NODE) ==
michael@0:                      (aName == nsGkAtoms::documentTypeNodeName)) &&
michael@0:                     ((aNodeType == nsIDOMNode::PROCESSING_INSTRUCTION_NODE) ==
michael@0:                      (aName == nsGkAtoms::processingInstructionTagName)),
michael@0:                     "Wrong localName for nodeType");
michael@0: }
michael@0: 
michael@0: #endif /* nsNodeInfo_h___ */