зеркало из https://github.com/mozilla/gecko-dev.git
136 строки
4.0 KiB
C++
136 строки
4.0 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
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/NPL/
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*
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the 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 Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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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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#include "nsIContent.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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#define NS_ITEXT_CONTENT_IID \
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{0xa6cf9065, 0x15b3, 0x11d2, {0x93, 0x2e, 0x00, 0x80, 0x5f, 0x8a, 0xdd, 0x32}}
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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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static const nsIID& GetIID() { static nsIID iid = NS_ITEXT_CONTENT_IID; return iid; }
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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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NS_IMETHOD GetText(const nsTextFragment** aFragmentsResult) = 0;
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/**
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* Get the length of the text content.
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*/
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NS_IMETHOD GetTextLength(PRInt32* aLengthResult) = 0;
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/**
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* Make a copy of the text content in aResult.
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*/
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NS_IMETHOD CopyText(nsAWritableString& aResult) = 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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NS_IMETHOD SetText(const PRUnichar* aBuffer,
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PRInt32 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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NS_IMETHOD SetText(const nsAReadableString& aStr,
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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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NS_IMETHOD SetText(const char* aBuffer,
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PRInt32 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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NS_IMETHOD IsOnlyWhitespace(PRBool* aResult) = 0;
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/**
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* Clone this content node. Unlike the nsIDOMNode equivalent, this
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* method allows you to specify whether to copy the text as well.
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*/
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NS_IMETHOD CloneContent(PRBool aCloneText, nsITextContent** aClone) = 0;
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};
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//----------------------------------------------------------------------
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/* a6cf905e-15b3-11d2-932e-00805f8add32 */
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#define NS_ITEXT_CONTENT_CHANGE_DATA_IID \
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{0xa6cf905e, 0x15b3, 0x11d2, {0x93, 0x2e, 0x00, 0x80, 0x5f, 0x8a, 0xdd, 0x32}}
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// Simple interface for encapsulating change data for a ContentChanged
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// notification.
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class nsITextContentChangeData : public nsISupports {
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public:
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NS_DEFINE_STATIC_IID_ACCESSOR(NS_ITEXT_CONTENT_CHANGE_DATA_IID);
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enum ChangeType {
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Insert,
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Append,
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Replace
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};
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/**
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* Get the type of change associated with the ContentChanged
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* notification.
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*/
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NS_IMETHOD GetChangeType(ChangeType* aResult) = 0;
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NS_IMETHOD GetInsertData(PRInt32* aOffset,
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PRInt32* aInsertLength) = 0;
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NS_IMETHOD GetAppendData(PRInt32* aOffset,
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PRInt32* aAppendLength) = 0;
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NS_IMETHOD GetReplaceData(PRInt32* aOffset,
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PRInt32* aSourceLength,
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PRInt32* aReplaceLength) = 0;
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};
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// XXX These belong elsewhere
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extern nsresult
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NS_NewTextNode(nsIContent** aResult);
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extern nsresult
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NS_NewCommentNode(nsIContent** aResult);
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#endif /* nsITextContent_h___ */
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