pjs/layout/style/nsICSSRule.h

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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* The Original Code is mozilla.org code.
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/* internal interface for all rule types in a CSS style sheet */
#ifndef nsICSSRule_h___
#define nsICSSRule_h___
#include "nsIStyleRule.h"
#include "nsIDOMCSSRule.h"
class nsICSSStyleSheet;
class nsICSSGroupRule;
class nsAString;
// IID for the nsICSSRule interface {e775eac0-b022-462c-b1f9-221c01aa2988}
#define NS_ICSS_RULE_IID \
{0xe775eac0, 0xb022, 0x462c, {0xb1, 0xf9, 0x22, 0x1c, 0x01, 0xaa, 0x29, 0x88}}
// 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)
enum {
UNKNOWN_RULE = 0,
STYLE_RULE = 1,
IMPORT_RULE = 2,
MEDIA_RULE = 3,
FONT_FACE_RULE = 4,
PAGE_RULE = 5,
CHARSET_RULE = 6,
NAMESPACE_RULE = 7,
DOCUMENT_RULE = 8
};
NS_IMETHOD GetType(PRInt32& aType) const = 0;
NS_IMETHOD GetStyleSheet(nsIStyleSheet*& aSheet) const = 0;
NS_IMETHOD SetStyleSheet(nsICSSStyleSheet* aSheet) = 0;
NS_IMETHOD SetParentRule(nsICSSGroupRule* aRule) = 0;
NS_IMETHOD Clone(nsICSSRule*& aClone) 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)
/* Define global NS_New* functions for rules that don't need their own
interfaces here */
nsresult
NS_NewCSSCharsetRule(nsICSSRule** aInstancePtrResult,
const nsAString& aEncoding);
#endif /* nsICSSRule_h___ */