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122 lines
3.9 KiB
C++
122 lines
3.9 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: 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
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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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* 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 nsITextContent_h___
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#define nsITextContent_h___
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#include "nsIContent.h"
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#include "nsIDocument.h"
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class nsString;
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class nsTextFragment;
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// IID for the nsITextContent interface
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// e5334e75-ac53-4447-b7fa-830e55cf5ac6
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#define NS_ITEXT_CONTENT_IID \
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{ 0xe5334e75, 0xac53, 0x4447, \
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{ 0xb7, 0xfa, 0x83, 0x0e, 0x55, 0xcf, 0x5a, 0xc6 } }
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/**
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* Interface for textual content. This interface is used to provide
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* an efficient access to text content.
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*/
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class nsITextContent : public nsIContent {
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public:
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NS_DECLARE_STATIC_IID_ACCESSOR(NS_ITEXT_CONTENT_IID)
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nsITextContent(nsINodeInfo *aNodeInfo)
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: nsIContent(aNodeInfo)
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{
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}
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/**
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* Get direct access (but read only) to the text in the text content.
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*/
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virtual const nsTextFragment *Text() = 0;
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/**
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* Get the length of the text content.
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*/
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virtual PRUint32 TextLength() = 0;
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/**
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* Set the text to the given value. If aNotify is PR_TRUE then
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* the document is notified of the content change.
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*/
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virtual void SetText(const PRUnichar* aBuffer, PRUint32 aLength,
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PRBool aNotify) = 0;
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/**
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* Set the text to the given value. If aNotify is PR_TRUE then
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* the document is notified of the content change.
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*/
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virtual void SetText(const nsAString& aStr, PRBool aNotify) = 0;
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/**
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* Set the text to the given value. If aNotify is PR_TRUE then
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* the document is notified of the content change.
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*/
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virtual void SetText(const char* aBuffer, PRUint32 aLength,
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PRBool aNotify) = 0;
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/**
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* Query method to see if the frame is nothing but whitespace
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*/
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virtual PRBool IsOnlyWhitespace() = 0;
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/**
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* Append the text content to aResult.
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*/
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virtual void AppendTextTo(nsAString& aResult) = 0;
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};
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NS_DEFINE_STATIC_IID_ACCESSOR(nsITextContent, NS_ITEXT_CONTENT_IID)
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// XXX These belong elsewhere
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/**
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* aNodeInfoManager must not be null.
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*/
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nsresult
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NS_NewTextNode(nsITextContent **aResult, nsNodeInfoManager *aNodeInfoManager);
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/**
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* aNodeInfoManager must not be null.
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*/
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nsresult
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NS_NewCommentNode(nsIContent **aResult, nsNodeInfoManager *aNodeInfoManager);
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#endif /* nsITextContent_h___ */
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