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145 lines
4.7 KiB
C
145 lines
4.7 KiB
C
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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 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 Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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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 the Mozilla browser.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications, Inc.
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* Portions created by the Initial Developer are Copyright (C) 1999
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Simon Fraser <sfraser@netscape.com>
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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 of the GNU General Public License Version 2 or later (the "GPL"),
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* or 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 MPL, 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 MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include "nsIEnumerator.h"
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#include "nsCOMPtr.h"
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#include "nsVoidArray.h"
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class nsIDocShellTreeItem;
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/*
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// {13cbc281-35ae-11d5-be5b-bde0edece43c}
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#define NS_DOCSHELL_FORWARDS_ENUMERATOR_CID \
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{ 0x13cbc281, 0x35ae, 0x11d5, { 0xbe, 0x5b, 0xbd, 0xe0, 0xed, 0xec, 0xe4, 0x3c } }
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#define NS_DOCSHELL_FORWARDS_ENUMERATOR_CONTRACTID \
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"@mozilla.org/docshell/enumerator-forwards;1"
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// {13cbc282-35ae-11d5-be5b-bde0edece43c}
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#define NS_DOCSHELL_BACKWARDS_ENUMERATOR_CID \
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{ 0x13cbc282, 0x35ae, 0x11d5, { 0xbe, 0x5b, 0xbd, 0xe0, 0xed, 0xec, 0xe4, 0x3c } }
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#define NS_DOCSHELL_BACKWARDS_ENUMERATOR_CONTRACTID \
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"@mozilla.org/docshell/enumerator-backwards;1"
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*/
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class nsDocShellEnumerator : public nsISimpleEnumerator
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{
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protected:
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enum {
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enumerateForwards,
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enumerateBackwards
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};
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public:
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nsDocShellEnumerator(PRInt32 inEnumerationDirection);
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virtual ~nsDocShellEnumerator();
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// nsISupports
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NS_DECL_ISUPPORTS
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// nsISimpleEnumerator
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NS_DECL_NSISIMPLEENUMERATOR
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public:
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nsresult GetEnumerationRootItem(nsIDocShellTreeItem * *aEnumerationRootItem);
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nsresult SetEnumerationRootItem(nsIDocShellTreeItem * aEnumerationRootItem);
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nsresult GetEnumDocShellType(PRInt32 *aEnumerationItemType);
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nsresult SetEnumDocShellType(PRInt32 aEnumerationItemType);
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nsresult First();
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protected:
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nsresult EnsureDocShellArray();
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nsresult ClearState();
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nsresult BuildDocShellArray(nsVoidArray& inItemArray);
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virtual nsresult BuildArrayRecursive(nsIDocShellTreeItem* inItem, nsVoidArray& inItemArray) = 0;
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protected:
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nsIDocShellTreeItem* mRootItem; // weak ref!
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nsVoidArray* mItemArray; // flattened list of items with matching type
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PRInt32 mCurIndex;
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PRInt32 mDocShellType; // only want shells of this type
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const PRInt8 mEnumerationDirection;
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};
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class nsDocShellForwardsEnumerator : public nsDocShellEnumerator
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{
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public:
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nsDocShellForwardsEnumerator()
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: nsDocShellEnumerator(enumerateForwards)
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{
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}
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protected:
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virtual nsresult BuildArrayRecursive(nsIDocShellTreeItem* inItem, nsVoidArray& inItemArray);
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};
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class nsDocShellBackwardsEnumerator : public nsDocShellEnumerator
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{
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public:
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nsDocShellBackwardsEnumerator()
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: nsDocShellEnumerator(enumerateBackwards)
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{
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}
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protected:
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virtual nsresult BuildArrayRecursive(nsIDocShellTreeItem* inItem, nsVoidArray& inItemArray);
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};
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