373 lines
12 KiB
C++
373 lines
12 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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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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*
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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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*
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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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* License.
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*
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* The Original Code is mozilla.org code.
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*
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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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*
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* Contributor(s):
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*
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*
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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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*
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* ***** END LICENSE BLOCK ***** */
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#include "nsISupports.h"
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#include "nsIContent.h"
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#include "nsIDOMDocumentFragment.h"
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#include "nsGenericElement.h"
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#include "nsINameSpaceManager.h"
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#include "nsINodeInfo.h"
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#include "nsNodeInfoManager.h"
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#include "nsIDocument.h"
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#include "nsIDOMDocument.h"
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#include "nsDOMError.h"
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class nsDocumentFragment : public nsGenericContainerElement,
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public nsIDocumentFragment,
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public nsIDOM3Node
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{
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public:
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nsDocumentFragment(nsIDocument* aOwnerDocument);
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virtual ~nsDocumentFragment();
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// nsISupports
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NS_DECL_ISUPPORTS_INHERITED
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// interface nsIDocumentFragment
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NS_IMETHOD DisconnectChildren();
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NS_IMETHOD ReconnectChildren();
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NS_IMETHOD DropChildReferences();
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// interface nsIDOMDocumentFragment
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NS_IMETHOD GetNodeName(nsAWritableString& aNodeName)
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{ return nsGenericContainerElement::GetNodeName(aNodeName); }
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NS_IMETHOD GetNodeValue(nsAWritableString& aNodeValue)
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{ return nsGenericContainerElement::GetNodeValue(aNodeValue); }
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NS_IMETHOD SetNodeValue(const nsAReadableString& aNodeValue)
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{ return nsGenericContainerElement::SetNodeValue(aNodeValue); }
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NS_IMETHOD GetNodeType(PRUint16* aNodeType);
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NS_IMETHOD GetParentNode(nsIDOMNode** aParentNode)
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{ return nsGenericContainerElement::GetParentNode(aParentNode); }
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NS_IMETHOD GetChildNodes(nsIDOMNodeList** aChildNodes)
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{ return nsGenericContainerElement::GetChildNodes(aChildNodes); }
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NS_IMETHOD GetFirstChild(nsIDOMNode** aFirstChild)
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{ return nsGenericContainerElement::GetFirstChild(aFirstChild); }
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NS_IMETHOD GetLastChild(nsIDOMNode** aLastChild)
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{ return nsGenericContainerElement::GetLastChild(aLastChild); }
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NS_IMETHOD GetPreviousSibling(nsIDOMNode** aPreviousSibling)
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{ return nsGenericContainerElement::GetPreviousSibling(aPreviousSibling); }
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NS_IMETHOD GetNextSibling(nsIDOMNode** aNextSibling)
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{ return nsGenericContainerElement::GetNextSibling(aNextSibling); }
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NS_IMETHOD GetAttributes(nsIDOMNamedNodeMap** aAttributes)
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{
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*aAttributes = nsnull;
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return NS_OK;
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}
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NS_IMETHOD GetOwnerDocument(nsIDOMDocument** aOwnerDocument);
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NS_IMETHOD InsertBefore(nsIDOMNode* aNewChild, nsIDOMNode* aRefChild,
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nsIDOMNode** aReturn)
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{ return nsGenericContainerElement::InsertBefore(aNewChild, aRefChild,
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aReturn); }
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NS_IMETHOD ReplaceChild(nsIDOMNode* aNewChild, nsIDOMNode* aOldChild,
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nsIDOMNode** aReturn)
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{ return nsGenericContainerElement::ReplaceChild(aNewChild, aOldChild,
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aReturn); }
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NS_IMETHOD RemoveChild(nsIDOMNode* aOldChild, nsIDOMNode** aReturn)
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{ return nsGenericContainerElement::RemoveChild(aOldChild, aReturn); }
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NS_IMETHOD AppendChild(nsIDOMNode* aNewChild, nsIDOMNode** aReturn)
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{ return nsGenericContainerElement::AppendChild(aNewChild, aReturn); }
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NS_IMETHOD HasChildNodes(PRBool* aReturn)
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{ return nsGenericContainerElement::HasChildNodes(aReturn); }
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NS_IMETHOD HasAttributes(PRBool* aReturn)
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{ return nsGenericContainerElement::HasAttributes(aReturn); }
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NS_IMETHOD CloneNode(PRBool aDeep, nsIDOMNode** aReturn);
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NS_IMETHOD GetPrefix(nsAWritableString& aPrefix)
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{ return nsGenericContainerElement::GetPrefix(aPrefix); }
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NS_IMETHOD SetPrefix(const nsAReadableString& aPrefix);
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NS_IMETHOD GetNamespaceURI(nsAWritableString& aNamespaceURI)
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{ return nsGenericContainerElement::GetNamespaceURI(aNamespaceURI); }
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NS_IMETHOD GetLocalName(nsAWritableString& aLocalName)
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{ return nsGenericContainerElement::GetLocalName(aLocalName); }
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NS_IMETHOD Normalize()
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{ return nsGenericContainerElement::Normalize(); }
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NS_IMETHOD IsSupported(const nsAReadableString& aFeature,
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const nsAReadableString& aVersion,
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PRBool* aReturn)
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{ return nsGenericContainerElement::IsSupported(aFeature, aVersion,
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aReturn); }
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// nsIDOM3Node
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NS_IMETHOD GetBaseURI(nsAWritableString& aURI)
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{ aURI.Truncate(); return NS_OK; }
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NS_IMETHOD LookupNamespacePrefix(const nsAReadableString& aNamespaceURI,
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nsAWritableString& aPrefix) {
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aPrefix.Truncate(); return NS_OK;
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}
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NS_IMETHOD LookupNamespaceURI(const nsAReadableString& aNamespacePrefix,
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nsAWritableString& aNamespaceURI) {
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aNamespaceURI.Truncate(); return NS_OK;
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}
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// nsIContent
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NS_IMETHOD SetParent(nsIContent* aParent)
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{ return NS_OK; }
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NS_IMETHOD SetAttr(PRInt32 aNameSpaceID, nsIAtom* aName,
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const nsAReadableString& aValue,
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PRBool aNotify)
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{ return NS_OK; }
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NS_IMETHOD SetAttr(nsINodeInfo* aNodeInfo,
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const nsAReadableString& aValue,
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PRBool aNotify)
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{ return NS_OK; }
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NS_IMETHOD GetAttr(PRInt32 aNameSpaceID, nsIAtom* aName,
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nsAWritableString& aResult) const
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{ return NS_CONTENT_ATTR_NOT_THERE; }
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NS_IMETHOD GetAttr(PRInt32 aNameSpaceID, nsIAtom* aName,
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nsIAtom*& aPrefix, nsAWritableString& aResult) const
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{ return NS_CONTENT_ATTR_NOT_THERE; }
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NS_IMETHOD UnsetAttr(PRInt32 aNameSpaceID, nsIAtom* aAttribute,
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PRBool aNotify)
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{ return NS_OK; }
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NS_IMETHOD GetAttrNameAt(PRInt32 aIndex,
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PRInt32& aNameSpaceID,
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nsIAtom*& aName,
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nsIAtom*& aPrefix) const
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{
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aName = nsnull;
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aPrefix = nsnull;
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return NS_ERROR_ILLEGAL_VALUE;
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}
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NS_IMETHOD HandleDOMEvent(nsIPresContext* aPresContext,
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nsEvent* aEvent,
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nsIDOMEvent** aDOMEvent,
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PRUint32 aFlags,
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nsEventStatus* aEventStatus)
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{
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NS_ENSURE_ARG_POINTER(aEventStatus);
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*aEventStatus = nsEventStatus_eIgnore;
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return NS_OK;
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}
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#ifdef DEBUG
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NS_IMETHOD SizeOf(nsISizeOfHandler* aSizer, PRUint32* aResult) const {
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if (!aResult) {
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return NS_ERROR_NULL_POINTER;
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}
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*aResult = sizeof(*this);
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return NS_OK;
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}
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#endif
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protected:
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nsCOMPtr<nsIDocument> mOwnerDocument;
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};
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nsresult
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NS_NewDocumentFragment(nsIDOMDocumentFragment** aInstancePtrResult,
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nsIDocument* aOwnerDocument)
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{
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NS_ENSURE_ARG_POINTER(aInstancePtrResult);
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nsCOMPtr<nsINodeInfoManager> nimgr;
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nsCOMPtr<nsINodeInfo> nodeInfo;
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nsresult rv;
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if (aOwnerDocument) {
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rv = aOwnerDocument->GetNodeInfoManager(*getter_AddRefs(nimgr));
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} else {
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rv = nsNodeInfoManager::GetAnonymousManager(*getter_AddRefs(nimgr));
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}
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NS_ENSURE_SUCCESS(rv, rv);
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rv = nimgr->GetNodeInfo(NS_LITERAL_STRING("#document-fragment"),
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nsnull, kNameSpaceID_None,
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*getter_AddRefs(nodeInfo));
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NS_ENSURE_SUCCESS(rv, rv);
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nsDocumentFragment* it = new nsDocumentFragment(aOwnerDocument);
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if (!it) {
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return NS_ERROR_OUT_OF_MEMORY;
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}
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rv = it->Init(nodeInfo);
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if (NS_FAILED(rv)) {
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delete it;
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return rv;
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}
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*aInstancePtrResult = NS_STATIC_CAST(nsIDOMDocumentFragment *, it);
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NS_ADDREF(*aInstancePtrResult);
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return NS_OK;
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}
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nsDocumentFragment::nsDocumentFragment(nsIDocument* aOwnerDocument)
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{
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mOwnerDocument = aOwnerDocument;
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}
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nsDocumentFragment::~nsDocumentFragment()
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{
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}
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// QueryInterface implementation for nsDocumentFragment
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NS_INTERFACE_MAP_BEGIN(nsDocumentFragment)
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NS_INTERFACE_MAP_ENTRY(nsIDocumentFragment)
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NS_INTERFACE_MAP_ENTRY(nsIDOMDocumentFragment)
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NS_INTERFACE_MAP_ENTRY(nsIDOMNode)
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NS_INTERFACE_MAP_ENTRY(nsIDOM3Node)
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NS_INTERFACE_MAP_ENTRY(nsIContent)
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NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIContent)
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NS_INTERFACE_MAP_ENTRY_CONTENT_CLASSINFO(DocumentFragment)
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NS_INTERFACE_MAP_END
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NS_IMPL_ADDREF(nsDocumentFragment)
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NS_IMPL_RELEASE(nsDocumentFragment)
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NS_IMETHODIMP
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nsDocumentFragment::DisconnectChildren()
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{
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nsCOMPtr<nsIContent> child;
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PRInt32 i, count;
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ChildCount(count);
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for (i = 0; i < count; i++) {
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ChildAt(i, *getter_AddRefs(child));
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NS_ASSERTION(child, "Bad content container");
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child->SetParent(nsnull);
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}
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return NS_OK;
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}
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NS_IMETHODIMP
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nsDocumentFragment::ReconnectChildren()
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{
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nsCOMPtr<nsIContent> child, parent;
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PRInt32 i, count = 0;
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ChildCount(count);
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for (i = 0; i < count; i++) {
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ChildAt(i, *getter_AddRefs(child));
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NS_ASSERTION(child, "Bad content container");
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child->GetParent(*getter_AddRefs(parent));
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if (parent) {
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PRInt32 indx = -1;
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// This is potentially a O(n**2) operation, but it should only
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// happen in error cases (such as out of memory or something
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// similar) so we don't care for now.
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parent->IndexOf(child, indx);
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if (indx >= 0) {
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parent->RemoveChildAt(indx, PR_TRUE);
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}
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}
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child->SetParent(this);
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}
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return NS_OK;
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}
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NS_IMETHODIMP
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nsDocumentFragment::DropChildReferences()
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{
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mChildren.Clear();
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return NS_OK;
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}
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NS_IMETHODIMP
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nsDocumentFragment::GetNodeType(PRUint16* aNodeType)
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{
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*aNodeType = (PRUint16)nsIDOMNode::DOCUMENT_FRAGMENT_NODE;
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return NS_OK;
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}
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NS_IMETHODIMP
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nsDocumentFragment::GetOwnerDocument(nsIDOMDocument** aOwnerDocument)
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{
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NS_ENSURE_ARG_POINTER(aOwnerDocument);
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if (!mOwnerDocument) {
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*aOwnerDocument = nsnull;
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return NS_OK;
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}
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return mOwnerDocument->QueryInterface(NS_GET_IID(nsIDOMDocument),
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(void **)aOwnerDocument);
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}
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NS_IMETHODIMP
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nsDocumentFragment::SetPrefix(const nsAReadableString& aPrefix)
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{
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return NS_ERROR_DOM_NAMESPACE_ERR;
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}
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NS_IMETHODIMP
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nsDocumentFragment::CloneNode(PRBool aDeep, nsIDOMNode** aReturn)
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{
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nsDocumentFragment* it;
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it = new nsDocumentFragment(mOwnerDocument);
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if (!it) {
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return NS_ERROR_OUT_OF_MEMORY;
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}
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nsCOMPtr<nsIContent> kungFuDeathGrip(it);
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//XXX CopyInnerTo(this, &it->mInner); ??? Why is this commented out?
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nsresult rv = it->Init(mNodeInfo);
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if (NS_FAILED(rv)) {
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delete it;
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return rv;
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}
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*aReturn = NS_STATIC_CAST(nsIDOMNode *, it);
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NS_ADDREF(*aReturn);
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return NS_OK;
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}
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