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nsICSSRule.h
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00001 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
00002 /* ***** BEGIN LICENSE BLOCK *****
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00015  * The Original Code is mozilla.org code.
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00017  * The Initial Developer of the Original Code is
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00022  * Contributor(s):
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00024  * Alternatively, the contents of this file may be used under the terms of
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00037 #ifndef nsICSSRule_h___
00038 #define nsICSSRule_h___
00039 
00040 #include "nsIStyleRule.h"
00041 
00042 class nsICSSStyleSheet;
00043 class nsICSSGroupRule;
00044 class nsIDOMCSSRule;
00045 class nsAString;
00046 
00047 // IID for the nsICSSRule interface {b9791e20-1a04-11d3-805a-006008159b5a}
00048 #define NS_ICSS_RULE_IID     \
00049 {0xb9791e20, 0x1a04, 0x11d3, {0x80, 0x5a, 0x00, 0x60, 0x08, 0x15, 0x9b, 0x5a}}
00050 
00051 
00052 class nsICSSRule : public nsIStyleRule {
00053 public:
00054   NS_DEFINE_STATIC_IID_ACCESSOR(NS_ICSS_RULE_IID)
00055   enum {
00056     UNKNOWN_RULE = 0,
00057     STYLE_RULE = 1,
00058     IMPORT_RULE = 2,
00059     MEDIA_RULE = 3,
00060     FONT_FACE_RULE = 4,
00061     PAGE_RULE = 5,
00062     CHARSET_RULE = 6,
00063     NAMESPACE_RULE = 7,
00064     DOCUMENT_RULE = 8
00065   };
00066 
00067   NS_IMETHOD GetType(PRInt32& aType) const = 0;
00068 
00069   NS_IMETHOD GetStyleSheet(nsIStyleSheet*& aSheet) const = 0;
00070   NS_IMETHOD SetStyleSheet(nsICSSStyleSheet* aSheet) = 0;
00071   NS_IMETHOD SetParentRule(nsICSSGroupRule* aRule) = 0;
00072 
00073   NS_IMETHOD Clone(nsICSSRule*& aClone) const = 0;
00074 
00075   // Note that this returns null for inline style rules since they aren't
00076   // supposed to have a DOM rule representation (and our code wouldn't work).
00077   NS_IMETHOD GetDOMRule(nsIDOMCSSRule** aDOMRule) = 0;
00078 };
00079 
00080 /* Define global NS_New* functions for rules that don't need their own
00081    interfaces here */
00082 nsresult
00083 NS_NewCSSCharsetRule(nsICSSRule** aInstancePtrResult,
00084                      const nsAString& aEncoding);
00085 
00086 #endif /* nsICSSRule_h___ */