gecko/content/xbl/src/nsXBLInsertionPoint.h

103 lines
4.1 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Mozilla Communicator client code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Original Author: David W. Hyatt (hyatt@netscape.com)
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef nsXBLInsertionPoint_h__
#define nsXBLInsertionPoint_h__
#include "nsCOMArray.h"
#include "nsIContent.h"
#include "nsCOMPtr.h"
#include "nsCycleCollectionParticipant.h"
class nsXBLInsertionPoint
{
public:
nsXBLInsertionPoint(nsIContent* aParentElement, PRUint32 aIndex, nsIContent* aDefContent);
~nsXBLInsertionPoint();
nsrefcnt AddRef()
{
++mRefCnt;
NS_LOG_ADDREF(this, mRefCnt, "nsXBLInsertionPoint",
sizeof(nsXBLInsertionPoint));
return mRefCnt;
}
nsrefcnt Release();
NS_DECL_CYCLE_COLLECTION_NATIVE_CLASS(nsXBLInsertionPoint)
nsIContent* GetInsertionParent();
void ClearInsertionParent() { mParentElement = nsnull; }
PRInt32 GetInsertionIndex() { return mIndex; }
void SetDefaultContent(nsIContent* aDefaultContent) { mDefaultContent = aDefaultContent; }
nsIContent* GetDefaultContent();
void SetDefaultContentTemplate(nsIContent* aDefaultContent) { mDefaultContentTemplate = aDefaultContent; }
nsIContent* GetDefaultContentTemplate();
void AddChild(nsIContent* aChildElement) { mElements.AppendObject(aChildElement); }
void InsertChildAt(PRInt32 aIndex, nsIContent* aChildElement) { mElements.InsertObjectAt(aChildElement, aIndex); }
void RemoveChild(nsIContent* aChildElement) { mElements.RemoveObject(aChildElement); }
PRInt32 ChildCount() { return mElements.Count(); }
nsIContent* ChildAt(PRUint32 aIndex);
PRInt32 IndexOf(nsIContent* aContent) { return mElements.IndexOf(aContent); }
PRBool Matches(nsIContent* aContent, PRUint32 aIndex);
// Unbind all the default content in this insertion point. Used
// when the insertion parent is going away.
void UnbindDefaultContent();
protected:
nsAutoRefCnt mRefCnt;
nsIContent* mParentElement; // This ref is weak. The parent of the <children> element.
PRInt32 mIndex; // The index of this insertion point. -1 is a pseudo-point.
nsCOMArray<nsIContent> mElements; // An array of elements present at the insertion point.
nsCOMPtr<nsIContent> mDefaultContentTemplate ; // The template default content that will be cloned if
// the insertion point is empty.
nsCOMPtr<nsIContent> mDefaultContent; // The cloned default content obtained by cloning mDefaultContentTemplate.
};
#endif