pjs/layout/base/public/nsIStyledContent.h

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/* -*- 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 nsIStyledContent_h___
#define nsIStyledContent_h___
#include "nsIContent.h"
class nsString;
class nsIStyleRule;
class nsIStyleContext;
class nsISupportsArray;
// IID for the nsIStyledContent class
#define NS_ISTYLEDCONTENT_IID \
{ 0xc1e84e01, 0xcd15, 0x11d2, { 0x96, 0xed, 0x0, 0x10, 0x4b, 0x7b, 0x7d, 0xeb } }
// Abstract interface for all styled content (that supports ID, CLASS, STYLE, and
// the ability to specify style hints on an attribute change).
class nsIStyledContent : public nsIContent {
public:
static const nsIID& GetIID() { static nsIID iid = NS_ISTYLEDCONTENT_IID; return iid; }
NS_IMETHOD GetID(nsIAtom*& aResult) const = 0;
NS_IMETHOD GetClasses(nsVoidArray& aArray) const = 0;
NS_IMETHOD HasClass(nsIAtom* aClass) const = 0;
NS_IMETHOD GetContentStyleRules(nsISupportsArray* aRules) = 0;
NS_IMETHOD GetInlineStyleRules(nsISupportsArray* aRules) = 0;
/** NRA ***
* Get a hint that tells the style system what to do when
* an attribute on this node changes.
* This only applies to attributes that map their value
* DIRECTLY into style contexts via NON-CSS style rules
* Only HTML currently does this.
* All other attributes return NS_STYLE_HINT_CONTENT
*/
NS_IMETHOD GetMappedAttributeImpact(const nsIAtom* aAttribute,
PRInt32& aHint) const = 0;
};
#endif /* nsIStyledContent_h___ */