1 : /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 : /* ***** BEGIN LICENSE BLOCK *****
3 : * Version: MPL 1.1/GPL 2.0/LGPL 2.1
4 : *
5 : * The contents of this file are subject to the Mozilla Public License Version
6 : * 1.1 (the "License"); you may not use this file except in compliance with
7 : * the License. You may obtain a copy of the License at
8 : * http://www.mozilla.org/MPL/
9 : *
10 : * Software distributed under the License is distributed on an "AS IS" basis,
11 : * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
12 : * for the specific language governing rights and limitations under the
13 : * License.
14 : *
15 : * The Original Code is Mozilla Communicator client code.
16 : *
17 : * The Initial Developer of the Original Code is
18 : * Netscape Communications Corporation.
19 : * Portions created by the Initial Developer are Copyright (C) 1998
20 : * the Initial Developer. All Rights Reserved.
21 : *
22 : * Contributor(s):
23 : * Original Author: David W. Hyatt (hyatt@netscape.com)
24 : *
25 : * Alternatively, the contents of this file may be used under the terms of
26 : * either of the GNU General Public License Version 2 or later (the "GPL"),
27 : * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
28 : * in which case the provisions of the GPL or the LGPL are applicable instead
29 : * of those above. If you wish to allow use of your version of this file only
30 : * under the terms of either the GPL or the LGPL, and not to allow others to
31 : * use your version of this file under the terms of the MPL, indicate your
32 : * decision by deleting the provisions above and replace them with the notice
33 : * and other provisions required by the GPL or the LGPL. If you do not delete
34 : * the provisions above, a recipient may use your version of this file under
35 : * the terms of any one of the MPL, the GPL or the LGPL.
36 : *
37 : * ***** END LICENSE BLOCK ***** */
38 :
39 : #ifndef nsXBLInsertionPoint_h__
40 : #define nsXBLInsertionPoint_h__
41 :
42 : #include "nsCOMArray.h"
43 : #include "nsIContent.h"
44 : #include "nsCOMPtr.h"
45 : #include "nsCycleCollectionParticipant.h"
46 :
47 : class nsXBLInsertionPoint
48 : {
49 : public:
50 : nsXBLInsertionPoint(nsIContent* aParentElement, PRUint32 aIndex, nsIContent* aDefContent);
51 : ~nsXBLInsertionPoint();
52 :
53 0 : NS_INLINE_DECL_REFCOUNTING(nsXBLInsertionPoint)
54 :
55 1464 : NS_DECL_CYCLE_COLLECTION_NATIVE_CLASS(nsXBLInsertionPoint)
56 :
57 : nsIContent* GetInsertionParent();
58 0 : void ClearInsertionParent() { mParentElement = nsnull; }
59 :
60 0 : PRInt32 GetInsertionIndex() { return mIndex; }
61 :
62 0 : void SetDefaultContent(nsIContent* aDefaultContent) { mDefaultContent = aDefaultContent; }
63 : nsIContent* GetDefaultContent();
64 :
65 : void SetDefaultContentTemplate(nsIContent* aDefaultContent) { mDefaultContentTemplate = aDefaultContent; }
66 : nsIContent* GetDefaultContentTemplate();
67 :
68 0 : void AddChild(nsIContent* aChildElement) { mElements.AppendObject(aChildElement); }
69 0 : void InsertChildAt(PRInt32 aIndex, nsIContent* aChildElement) { mElements.InsertObjectAt(aChildElement, aIndex); }
70 0 : void RemoveChild(nsIContent* aChildElement) { mElements.RemoveObject(aChildElement); }
71 :
72 0 : PRInt32 ChildCount() { return mElements.Count(); }
73 :
74 : nsIContent* ChildAt(PRUint32 aIndex);
75 :
76 0 : PRInt32 IndexOf(nsIContent* aContent) { return mElements.IndexOf(aContent); }
77 :
78 : bool Matches(nsIContent* aContent, PRUint32 aIndex);
79 :
80 : // Unbind all the default content in this insertion point. Used
81 : // when the insertion parent is going away.
82 : void UnbindDefaultContent();
83 :
84 : protected:
85 : nsIContent* mParentElement; // This ref is weak. The parent of the <children> element.
86 : PRInt32 mIndex; // The index of this insertion point. -1 is a pseudo-point.
87 : nsCOMArray<nsIContent> mElements; // An array of elements present at the insertion point.
88 : nsCOMPtr<nsIContent> mDefaultContentTemplate ; // The template default content that will be cloned if
89 : // the insertion point is empty.
90 : nsCOMPtr<nsIContent> mDefaultContent; // The cloned default content obtained by cloning mDefaultContentTemplate.
91 : };
92 :
93 : #endif
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