RetroZilla/content/base/public/nsITextContent.h
2015-10-20 23:03:22 -04:00

113 lines
3.7 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.org 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):
*
* 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
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* ***** END LICENSE BLOCK ***** */
#ifndef nsITextContent_h___
#define nsITextContent_h___
#include "nsIContent.h"
class nsString;
class nsTextFragment;
class nsNodeInfoManager;
// IID for the nsITextContent interface
#define NS_ITEXT_CONTENT_IID \
{0x3c4cfec2, 0x4438, 0x48df, {0xa2, 0x12, 0x30, 0x5e, 0x5a, 0xd8, 0xbb, 0xa0}}
/**
* Interface for textual content. This interface is used to provide
* an efficient access to text content.
*/
class nsITextContent : public nsIContent {
public:
NS_DEFINE_STATIC_IID_ACCESSOR(NS_ITEXT_CONTENT_IID)
/**
* Get direct access (but read only) to the text in the text content.
*/
virtual const nsTextFragment *Text() = 0;
/**
* Get the length of the text content.
*/
virtual PRUint32 TextLength() = 0;
/**
* Set the text to the given value. If aNotify is PR_TRUE then
* the document is notified of the content change.
*/
virtual void SetText(const PRUnichar* aBuffer, PRUint32 aLength,
PRBool aNotify) = 0;
/**
* Set the text to the given value. If aNotify is PR_TRUE then
* the document is notified of the content change.
*/
virtual void SetText(const nsAString& aStr, PRBool aNotify) = 0;
/**
* Set the text to the given value. If aNotify is PR_TRUE then
* the document is notified of the content change.
*/
virtual void SetText(const char* aBuffer, PRUint32 aLength,
PRBool aNotify) = 0;
/**
* Query method to see if the frame is nothing but whitespace
*/
virtual PRBool IsOnlyWhitespace() = 0;
/**
* Append the text content to aResult.
*/
virtual void AppendTextTo(nsAString& aResult) = 0;
};
// XXX These belong elsewhere
/**
* aNodeInfoManager must not be null.
*/
nsresult
NS_NewTextNode(nsITextContent **aResult, nsNodeInfoManager *aNodeInfoManager);
/**
* aNodeInfoManager must not be null.
*/
nsresult
NS_NewCommentNode(nsIContent **aResult, nsNodeInfoManager *aNodeInfoManager);
#endif /* nsITextContent_h___ */