RetroZilla/content/base/public/nsIStyledContent.h

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (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/MPL/
*
* 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.org code.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef nsIStyledContent_h___
#define nsIStyledContent_h___
#include "nsIContent.h"
#include "nsChangeHint.h"
class nsString;
class nsICSSStyleRule;
class nsISupportsArray;
class nsRuleWalker;
class nsAttrValue;
// IID for the nsIStyledContent class
#define NS_ISTYLEDCONTENT_IID \
{ 0xa7b53093, 0x3516, 0x4392, { 0xb3, 0x3e, 0x12, 0xc0, 0x0d, 0xe7, 0x85, 0xaa } };
// 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:
NS_DEFINE_STATIC_IID_ACCESSOR(NS_ISTYLEDCONTENT_IID)
// XXX Currently callers (e.g., CSSStyleSheetImpl) assume that the ID
// corresponds to the attribute nsHTMLAtoms::id and that the Class
// corresponds to the attribute nsHTMLAtoms::kClass. If this becomes
// incorrect, then new methods need to be added here.
virtual nsIAtom* GetID() const = 0;
virtual const nsAttrValue* GetClasses() const = 0;
NS_IMETHOD_(PRBool) HasClass(nsIAtom* aClass, PRBool aCaseSensitive) const = 0;
NS_IMETHOD WalkContentStyleRules(nsRuleWalker* aRuleWalker) = 0;
virtual nsICSSStyleRule* GetInlineStyleRule() = 0;
NS_IMETHOD SetInlineStyleRule(nsICSSStyleRule* aStyleRule, PRBool aNotify) = 0;
/**
* Is the attribute named stored in the mapped attributes?
*
* This really belongs on nsIHTMLContent instead.
*/
NS_IMETHOD_(PRBool) IsAttributeMapped(const nsIAtom* aAttribute) const = 0;
/**
* Get a hint that tells the style system what to do when
* an attribute on this node changes, if something needs to happen
* in response to the change *other* than the result of what is
* mapped into style data via any type of style rule.
*/
virtual nsChangeHint GetAttributeChangeHint(const nsIAtom* aAttribute,
PRInt32 aModType) const = 0;
/**
* Returns an atom holding the name of the "class" attribute on this
* content node (if applicable). Returns null for non-element
* content nodes.
*/
virtual nsIAtom *GetClassAttributeName() const = 0;
};
#endif /* nsIStyledContent_h___ */