147 lines
5.6 KiB
C++
147 lines
5.6 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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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 mozilla.org code.
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*
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* The Initial Developer of the Original Code is Jan Varga.
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* Portions created by the Initial Developer are Copyright (C) 2001
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Brian Ryner <bryner@brianryner.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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#ifndef nsTreeContentView_h__
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#define nsTreeContentView_h__
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#include "nsFixedSizeAllocator.h"
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#include "nsVoidArray.h"
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#include "nsIDocument.h"
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#include "nsStubDocumentObserver.h"
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#include "nsITreeBoxObject.h"
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#include "nsITreeColumns.h"
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#include "nsITreeView.h"
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#include "nsITreeContentView.h"
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#include "nsITreeSelection.h"
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nsresult NS_NewTreeContentView(nsITreeContentView** aResult);
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class nsTreeContentView : public nsINativeTreeView,
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public nsITreeContentView,
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public nsStubDocumentObserver
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{
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public:
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nsTreeContentView(void);
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~nsTreeContentView(void);
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friend nsresult NS_NewTreeContentView(nsITreeContentView** aResult);
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NS_DECL_ISUPPORTS
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NS_DECL_NSITREEVIEW
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// nsINativeTreeView: Untrusted code can use us
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NS_IMETHOD EnsureNative() { return NS_OK; }
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NS_DECL_NSITREECONTENTVIEW
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// nsIDocumentObserver
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virtual void ContentStatesChanged(nsIDocument* aDocument,
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nsIContent* aContent1,
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nsIContent* aContent2,
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PRInt32 aStateMask);
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virtual void AttributeChanged(nsIDocument *aDocument, nsIContent* aContent,
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PRInt32 aNameSpaceID, nsIAtom* aAttribute,
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PRInt32 aModType);
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virtual void ContentAppended(nsIDocument *aDocument,
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nsIContent* aContainer,
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PRInt32 aNewIndexInContainer);
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virtual void ContentInserted(nsIDocument *aDocument,
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nsIContent* aContainer,
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nsIContent* aChild,
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PRInt32 aIndexInContainer);
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virtual void ContentRemoved(nsIDocument *aDocument, nsIContent* aContainer,
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nsIContent* aChild, PRInt32 aIndexInContainer);
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virtual void DocumentWillBeDestroyed(nsIDocument *aDocument);
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static PRBool CanTrustTreeSelection(nsISupports* aValue);
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protected:
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// Recursive methods which deal with serializing of nested content.
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void Serialize(nsIContent* aContent, PRInt32 aParentIndex, PRInt32* aIndex, nsVoidArray& aRows);
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void SerializeItem(nsIContent* aContent, PRInt32 aParentIndex, PRInt32* aIndex, nsVoidArray& aRows);
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void SerializeSeparator(nsIContent* aContent, PRInt32 aParentIndex, PRInt32* aIndex, nsVoidArray& aRows);
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void SerializeOption(nsIContent* aContent, PRInt32 aParentIndex, PRInt32* aIndex,
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nsVoidArray& aRows);
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void SerializeOptGroup(nsIContent* aContent, PRInt32 aParentIndex, PRInt32* aIndex,
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nsVoidArray& aRows);
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void GetIndexInSubtree(nsIContent* aContainer, nsIContent* aContent, PRInt32* aResult);
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// Helper methods which we use to manage our plain array of rows.
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PRInt32 EnsureSubtree(PRInt32 aIndex);
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PRInt32 RemoveSubtree(PRInt32 aIndex);
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PRInt32 InsertRow(PRInt32 aParentIndex, PRInt32 aIndex, nsIContent* aContent);
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void InsertRowFor(nsIContent* aParent, nsIContent* aChild);
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PRInt32 RemoveRow(PRInt32 aIndex);
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void ClearRows();
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void OpenContainer(PRInt32 aIndex);
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void CloseContainer(PRInt32 aIndex);
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PRInt32 FindContent(nsIContent* aContent);
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void UpdateSubtreeSizes(PRInt32 aIndex, PRInt32 aCount);
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void UpdateParentIndexes(PRInt32 aIndex, PRInt32 aSkip, PRInt32 aCount);
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// Content helpers.
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nsIContent* GetCell(nsIContent* aContainer, nsITreeColumn* aCol);
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private:
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nsCOMPtr<nsITreeBoxObject> mBoxObject;
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nsCOMPtr<nsITreeSelection> mSelection;
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nsCOMPtr<nsIContent> mRoot;
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nsIDocument* mDocument; // WEAK
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nsFixedSizeAllocator mAllocator;
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nsVoidArray mRows;
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PRPackedBool mUpdateSelection;
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};
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#endif // nsTreeContentView_h__
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