gecko-dev/rdf/content/public/nsIRDFContentModelBuilder.h

87 lines
3.1 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* The contents of this file are subject to the Netscape Public License
* Version 1.0 (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/NPL/
*
* 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 Communicator client code.
*
* The Initial Developer of the Original Code is Netscape Communications
* Corporation. Portions created by Netscape are Copyright (C) 1998
* Netscape Communications Corporation. All Rights Reserved.
*/
/*
A content model builder interface. An object that implements this
interface is associated with an nsIRDFDocument object to construct
an NGLayout content model.
*/
#ifndef nsIRDFContentModelBuilder_h__
#define nsIRDFContentModelBuilder_h__
#include "nsISupports.h"
class nsIRDFContent;
class nsIRDFDocument;
class nsIRDFNode;
class nsIRDFResource;
// {541AFCB0-A9A3-11d2-8EC5-00805F29F370}
#define NS_IRDFCONTENTMODELBUILDER_IID \
{ 0x541afcb0, 0xa9a3, 0x11d2, { 0x8e, 0xc5, 0x0, 0x80, 0x5f, 0x29, 0xf3, 0x70 } }
class nsIRDFContentModelBuilder : public nsISupports
{
public:
static const nsIID& IID() { static nsIID iid = NS_IRDFCONTENTMODELBUILDER_IID; return iid; }
/**
* Point the content model builder to the document. The content model
* builder must not reference count the document.
*/
NS_IMETHOD SetDocument(nsIRDFDocument* aDocument) = 0;
/**
* Called to instruct the content model builder to construct the root
* document element. The content model builder should construct an
* nsIContent object and set the document's content root to that object
* via the nsIDocument::SetDocumentRoot() method.
*/
NS_IMETHOD CreateRoot(nsIRDFResource* aResource) = 0;
/**
* Construct the contents for a container element.
*/
NS_IMETHOD CreateContents(nsIRDFContent* aElement) = 0;
/**
* Called when a new assertion is made to the RDF graph that affects an
* element in the content model. The content model builder should update
* the document's content model as appropriate.
*/
NS_IMETHOD OnAssert(nsIRDFContent* aElement, nsIRDFResource* aProperty, nsIRDFNode* aValue) = 0;
/**
* Called when an assertion is removed from the RDF graph that affects
* an element in the content model. The content model builder should
* update the document's content model as appropriate.
*/
NS_IMETHOD OnUnassert(nsIRDFContent* aElement, nsIRDFResource* aProperty, nsIRDFNode* aValue) = 0;
};
extern nsresult NS_NewRDFHTMLBuilder(nsIRDFContentModelBuilder** aResult);
extern nsresult NS_NewRDFTreeBuilder(nsIRDFContentModelBuilder** aResult);
extern nsresult NS_NewRDFXULBuilder(nsIRDFContentModelBuilder** aResult);
#endif // nsIRDFContentModelBuilder_h__