/* -*- 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 1.1 (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/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.org 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. * * Contributor(s): */ #ifndef nsIStyleRuleProcessor_h___ #define nsIStyleRuleProcessor_h___ #include #include "nslayout.h" #include "nsISupports.h" class nsISizeOfHandler; class nsIStyleSheet; class nsIStyleContext; class nsIPresContext; class nsIContent; class nsISupportsArray; class nsIAtom; // IID for the nsIStyleRuleProcessor interface {015575fe-7b6c-11d3-ba05-001083023c2b} #define NS_ISTYLE_RULE_PROCESSOR_IID \ {0x015575fe, 0x7b6c, 0x11d3, {0xba, 0x05, 0x00, 0x10, 0x83, 0x02, 0x3c, 0x2b}} /* The style rule processor interface is a mechanism to seperate the matching * of style rules from style sheet instances. * Simple style sheets can and will act as their own processor. * Sheets where rule ordering interlaces between multiple sheets, will need to * share a single rule processor between them (CSS sheets do this for cascading order) */ class nsIStyleRuleProcessor : public nsISupports { public: static const nsIID& GetIID() { static nsIID iid = NS_ISTYLE_RULE_PROCESSOR_IID; return iid; } // populate supports array with nsIStyleRule* // rules are ordered, those with higher precedence come last NS_IMETHOD RulesMatching(nsIPresContext* aPresContext, nsIAtom* aMedium, nsIContent* aContent, nsIStyleContext* aParentContext, nsISupportsArray* aResults) = 0; NS_IMETHOD RulesMatching(nsIPresContext* aPresContext, nsIAtom* aMedium, nsIContent* aParentContent, nsIAtom* aPseudoTag, nsIStyleContext* aParentContext, nsISupportsArray* aResults) = 0; // Test if style is dependent on content state NS_IMETHOD HasStateDependentStyle(nsIPresContext* aPresContext, nsIAtom* aMedium, nsIContent* aContent) = 0; virtual void SizeOf(nsISizeOfHandler *aSizeofHandler, PRUint32 &aSize) = 0; }; #endif /* nsIStyleRuleProcessor_h___ */