/* -*- 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) 1999 * 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 ***** */ /* internal interface for all rule types in a CSS style sheet */ #ifndef nsICSSRule_h #define nsICSSRule_h #include "nsIStyleRule.h" #include "nsIDOMCSSRule.h" class nsCSSStyleSheet; class nsAString; template struct already_AddRefed; class nsIStyleSheet; namespace mozilla { namespace css { class GroupRule; } } // IID for the nsICSSRule interface #define NS_ICSS_RULE_IID \ { 0x471d733e, 0xc138, 0x4a50, \ { 0x9e, 0x1a, 0xd1, 0x3c, 0xbb, 0x65, 0xb5, 0x26 } } // inheriting from nsIStyleRule is only for style rules, not other rule types class nsICSSRule : public nsIStyleRule { public: NS_DECLARE_STATIC_IID_ACCESSOR(NS_ICSS_RULE_IID) // The constants in this list must maintain the following invariants: // If a rule of type N must appear before a rule of type M in stylesheets // then N < M // Note that nsCSSStyleSheet::RebuildChildList assumes that no other kinds of // rules can come between two rules of type IMPORT_RULE. enum { UNKNOWN_RULE = 0, CHARSET_RULE, IMPORT_RULE, NAMESPACE_RULE, STYLE_RULE, MEDIA_RULE, FONT_FACE_RULE, PAGE_RULE, #ifdef MOZ_CSS_ANIMATIONS KEYFRAME_RULE, KEYFRAMES_RULE, #endif DOCUMENT_RULE }; virtual PRInt32 GetType() const = 0; virtual nsIStyleSheet* GetStyleSheet() const = 0; virtual void SetStyleSheet(nsCSSStyleSheet* aSheet) = 0; virtual void SetParentRule(mozilla::css::GroupRule* aRule) = 0; /** * Clones |this|. Never returns NULL. */ virtual already_AddRefed Clone() const = 0; // Note that this returns null for inline style rules since they aren't // supposed to have a DOM rule representation (and our code wouldn't work). nsresult GetDOMRule(nsIDOMCSSRule** aDOMRule) { nsresult rv; NS_IF_ADDREF(*aDOMRule = GetDOMRuleWeak(&rv)); return rv; } virtual nsIDOMCSSRule* GetDOMRuleWeak(nsresult* aResult) = 0; }; NS_DEFINE_STATIC_IID_ACCESSOR(nsICSSRule, NS_ICSS_RULE_IID) #endif /* nsICSSRule_h */