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49 lines
1.6 KiB
C++
49 lines
1.6 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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#ifndef nsITextContent_h___
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#define nsITextContent_h___
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#include "nslayout.h"
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class nsString;
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// IID for the nsITextContent interface
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#define NS_ITEXTCONTENT_IID \
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{ 0xdd0755d0, 0x944d, 0x11d1, \
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{0x93, 0x23, 0x00, 0x80, 0x5f, 0x8a, 0xdd, 0x32} }
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// Abstract interface for textual content. Note that this interface
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// does not implement nsISupports (which means it's not transitive or
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// reflexive). This is done for efficiency reasons.
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class nsITextContent {
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public:
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/*
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* Get the total length of the text content.
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*/
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virtual PRInt32 GetLength() = 0;
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/*
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* Copy a subrange of the text content into aBuf starting at aOffset
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* for aCount characters. aBuf's length will be reset before the
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* copy occurs and it's length upon return will reflect the amount
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* of data copied.
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*/
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virtual void GetText(nsString& aBuf, PRInt32 aOffset, PRInt32 aCount) = 0;
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};
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#endif /* nsITextContent_h___ */
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