pjs/layout/base/public/nsITextContent.h

75 строки
2.3 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Netscape Public License
* Version 1.0 (the "NPL"); you may not use this file except in
* compliance with the NPL. You may obtain a copy of the NPL at
* http://www.mozilla.org/NPL/
*
* Software distributed under the NPL is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
* for the specific language governing rights and limitations under the
* NPL.
*
* The Initial Developer of this code under the NPL is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All Rights
* Reserved.
*/
#ifndef nsITextContent_h___
#define nsITextContent_h___
#include "nslayout.h"
class nsString;
class nsTextFragment;
class nsIContent;
// IID for the nsITextContent interface
#define NS_ITEXT_CONTENT_IID \
{0xa6cf9065, 0x15b3, 0x11d2, {0x93, 0x2e, 0x00, 0x80, 0x5f, 0x8a, 0xdd, 0x32}}
/**
* Interface for textual content. This interface is used to provide
* an efficient access to text content.
*/
class nsITextContent : public nsISupports {
public:
static const nsIID& GetIID() { static nsIID iid = NS_ITEXT_CONTENT_IID; return iid; }
/**
* Get direct access to the text in the text content.
*/
NS_IMETHOD GetText(const nsTextFragment*& aFragmentsResult,
PRInt32& aNumFragmentsResult) = 0;
/**
* Set the text to the given value. If aNotify is PR_TRUE then
* the document is notified of the content change.
*/
NS_IMETHOD SetText(const PRUnichar* aBuffer,
PRInt32 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.
*/
NS_IMETHOD SetText(const char* aBuffer,
PRInt32 aLength,
PRBool aNotify) = 0;
/**
* Query method to see if the frame is nothing but whitespace
*/
NS_IMETHOD IsOnlyWhitespace(PRBool* aResult) = 0;
};
// XXX These belong elsewhere
extern nsresult
NS_NewTextNode(nsIContent** aResult);
extern nsresult
NS_NewCommentNode(nsIContent** aResult);
#endif /* nsITextContent_h___ */