gecko-dev/layout/base/public/nsIStyleSheet.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 1.1 (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 nsIStyleSheet_h___
#define nsIStyleSheet_h___
#include <stdio.h>
#include "nsISupports.h"
class nsISizeOfHandler;
class nsIAtom;
class nsString;
class nsIURI;
class nsIStyleRule;
class nsISupportsArray;
class nsIPresContext;
class nsIContent;
class nsIDocument;
class nsIStyleContext;
class nsIStyleRuleProcessor;
// IID for the nsIStyleSheet interface {8c4a80a0-ad6a-11d1-8031-006008159b5a}
#define NS_ISTYLE_SHEET_IID \
{0x8c4a80a0, 0xad6a, 0x11d1, {0x80, 0x31, 0x00, 0x60, 0x08, 0x15, 0x9b, 0x5a}}
class nsIStyleSheet : public nsISupports {
public:
static const nsIID& GetIID() { static nsIID iid = NS_ISTYLE_SHEET_IID; return iid; }
// basic style sheet data
NS_IMETHOD GetURL(nsIURI*& aURL) const = 0;
NS_IMETHOD GetTitle(nsString& aTitle) const = 0;
NS_IMETHOD GetType(nsString& aType) const = 0;
NS_IMETHOD GetMediumCount(PRInt32& aCount) const = 0;
NS_IMETHOD GetMediumAt(PRInt32 aIndex, nsIAtom*& aMedium) const = 0;
NS_IMETHOD UseForMedium(nsIAtom* aMedium) const = 0;
NS_IMETHOD GetEnabled(PRBool& aEnabled) const = 0;
NS_IMETHOD SetEnabled(PRBool aEnabled) = 0;
// style sheet owner info
NS_IMETHOD GetParentSheet(nsIStyleSheet*& aParent) const = 0; // may be null
NS_IMETHOD GetOwningDocument(nsIDocument*& aDocument) const = 0; // may be null
NS_IMETHOD SetOwningDocument(nsIDocument* aDocument) = 0;
// style rule processor access
NS_IMETHOD GetStyleRuleProcessor(nsIStyleRuleProcessor*& aProcessor,
nsIStyleRuleProcessor* aPrevProcessor) = 0;
// XXX style rule enumerations
virtual void List(FILE* out = stdout, PRInt32 aIndent = 0) const = 0;
virtual void SizeOf(nsISizeOfHandler *aSizeofHandler, PRUint32 &aSize) = 0;
// If changing the given attribute cannot affect style context, aAffects
// will be PR_FALSE on return.
NS_IMETHOD AttributeAffectsStyle(nsIAtom *aAttribute, nsIContent *aContent,
PRBool &aAffects) = 0;
};
#endif /* nsIStyleSheet_h___ */