gecko/layout/style/nsCSSRules.h

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
// vim:cindent:ts=2:et:sw=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):
* L. David Baron <dbaron@dbaron.org>
* Boris Zbarsky <bzbarsky@mit.edu>
*
* 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 ***** */
/* rules in a CSS stylesheet other than style rules (e.g., @import rules) */
#ifndef nsCSSRules_h_
#define nsCSSRules_h_
#include "nsCSSRule.h"
#include "nsICSSGroupRule.h"
#include "nsIDOMCSSMediaRule.h"
#include "nsIDOMCSSMozDocumentRule.h"
#include "nsIDOMCSSFontFaceRule.h"
#include "nsIDOMCSSStyleDeclaration.h"
#include "nsAutoPtr.h"
#include "nsCSSProperty.h"
#include "nsCSSValue.h"
class CSSGroupRuleRuleListImpl;
class nsMediaList;
template<class T> struct already_AddRefed;
#define DECL_STYLE_RULE_INHERIT_NO_DOMRULE \
virtual already_AddRefed<nsIStyleSheet> GetStyleSheet() const; \
virtual void SetStyleSheet(nsCSSStyleSheet* aSheet); \
virtual void SetParentRule(nsICSSGroupRule* aRule); \
virtual void MapRuleInfoInto(nsRuleData* aRuleData);
#define DECL_STYLE_RULE_INHERIT \
DECL_STYLE_RULE_INHERIT_NO_DOMRULE \
nsIDOMCSSRule* GetDOMRuleWeak(nsresult* aResult);
// inherits from nsCSSRule and also implements methods on nsICSSGroupRule
// so they can be shared between nsCSSMediaRule and nsCSSDocumentRule
class nsCSSGroupRule : public nsCSSRule, public nsICSSGroupRule
{
protected:
nsCSSGroupRule();
nsCSSGroupRule(const nsCSSGroupRule& aCopy);
~nsCSSGroupRule();
// implement part of nsIStyleRule and nsICSSRule
DECL_STYLE_RULE_INHERIT_NO_DOMRULE
// to help implement nsIStyleRule
#ifdef DEBUG
virtual void List(FILE* out = stdout, PRInt32 aIndent = 0) const;
#endif
public:
// implement nsICSSGroupRule
NS_IMETHOD AppendStyleRule(nsICSSRule* aRule);
NS_IMETHOD StyleRuleCount(PRInt32& aCount) const;
NS_IMETHOD GetStyleRuleAt(PRInt32 aIndex, nsICSSRule*& aRule) const;
NS_IMETHOD_(PRBool) EnumerateRulesForwards(RuleEnumFunc aFunc, void * aData) const;
NS_IMETHOD DeleteStyleRuleAt(PRUint32 aIndex);
NS_IMETHOD InsertStyleRulesAt(PRUint32 aIndex,
nsCOMArray<nsICSSRule>& aRules);
NS_IMETHOD ReplaceStyleRule(nsICSSRule *aOld, nsICSSRule *aNew);
protected:
// to help implement nsIDOMCSSRule
nsresult AppendRulesToCssText(nsAString& aCssText);
// to implement methods on nsIDOMCSSRule
nsresult GetParentStyleSheet(nsIDOMCSSStyleSheet** aSheet);
nsresult GetParentRule(nsIDOMCSSRule** aParentRule);
// to implement common methods on nsIDOMCSSMediaRule and
// nsIDOMCSSMozDocumentRule
nsresult GetCssRules(nsIDOMCSSRuleList* *aRuleList);
nsresult InsertRule(const nsAString & aRule, PRUint32 aIndex,
PRUint32* _retval);
nsresult DeleteRule(PRUint32 aIndex);
nsCOMArray<nsICSSRule> mRules;
CSSGroupRuleRuleListImpl* mRuleCollection;
};
class nsCSSMediaRule : public nsCSSGroupRule,
public nsIDOMCSSMediaRule
{
public:
nsCSSMediaRule();
nsCSSMediaRule(const nsCSSMediaRule& aCopy);
virtual ~nsCSSMediaRule();
NS_DECL_ISUPPORTS_INHERITED
// nsIStyleRule methods
#ifdef DEBUG
virtual void List(FILE* out = stdout, PRInt32 aIndent = 0) const;
#endif
// nsICSSRule methods
virtual void SetStyleSheet(nsCSSStyleSheet* aSheet); //override nsCSSGroupRule
virtual PRInt32 GetType() const;
virtual already_AddRefed<nsICSSRule> Clone() const;
nsIDOMCSSRule* GetDOMRuleWeak(nsresult *aResult)
{
*aResult = NS_OK;
return this;
}
// nsIDOMCSSRule interface
NS_DECL_NSIDOMCSSRULE
// nsIDOMCSSMediaRule interface
NS_DECL_NSIDOMCSSMEDIARULE
// rest of nsICSSGroupRule interface
NS_IMETHOD_(PRBool) UseForPresentation(nsPresContext* aPresContext,
nsMediaQueryResultCacheKey& aKey);
// @media rule methods
nsresult SetMedia(nsMediaList* aMedia);
protected:
nsRefPtr<nsMediaList> mMedia;
};
class nsCSSDocumentRule : public nsCSSGroupRule,
public nsIDOMCSSMozDocumentRule
{
public:
nsCSSDocumentRule(void);
nsCSSDocumentRule(const nsCSSDocumentRule& aCopy);
virtual ~nsCSSDocumentRule(void);
NS_DECL_ISUPPORTS_INHERITED
// nsIStyleRule methods
#ifdef DEBUG
virtual void List(FILE* out = stdout, PRInt32 aIndent = 0) const;
#endif
// nsICSSRule methods
virtual PRInt32 GetType() const;
virtual already_AddRefed<nsICSSRule> Clone() const;
nsIDOMCSSRule* GetDOMRuleWeak(nsresult *aResult)
{
*aResult = NS_OK;
return this;
}
// nsIDOMCSSRule interface
NS_DECL_NSIDOMCSSRULE
// nsIDOMCSSMozDocumentRule interface
NS_DECL_NSIDOMCSSMOZDOCUMENTRULE
// rest of nsICSSGroupRule interface
NS_IMETHOD_(PRBool) UseForPresentation(nsPresContext* aPresContext,
nsMediaQueryResultCacheKey& aKey);
enum Function {
eURL,
eURLPrefix,
eDomain
};
struct URL {
Function func;
nsCString url;
URL *next;
URL() : next(nsnull) {}
URL(const URL& aOther)
: func(aOther.func)
, url(aOther.url)
, next(aOther.next ? new URL(*aOther.next) : nsnull)
{
}
~URL();
};
void SetURLs(URL *aURLs) { mURLs = aURLs; }
protected:
nsAutoPtr<URL> mURLs; // linked list of |struct URL| above.
};
// A nsCSSFontFaceStyleDecl is always embedded in a nsCSSFontFaceRule.
class nsCSSFontFaceRule;
class nsCSSFontFaceStyleDecl : public nsIDOMCSSStyleDeclaration
{
public:
NS_DECL_ISUPPORTS
NS_DECL_NSIDOMCSSSTYLEDECLARATION
nsresult GetPropertyValue(nsCSSFontDesc aFontDescID,
nsAString & aResult NS_OUTPARAM) const;
protected:
friend class nsCSSFontFaceRule;
nsCSSValue mFamily;
nsCSSValue mStyle;
nsCSSValue mWeight;
nsCSSValue mStretch;
nsCSSValue mSrc;
nsCSSValue mUnicodeRange;
nsCSSValue mFontFeatureSettings;
nsCSSValue mFontLanguageOverride;
static nsCSSValue nsCSSFontFaceStyleDecl::* const Fields[];
inline nsCSSFontFaceRule* ContainingRule();
inline const nsCSSFontFaceRule* ContainingRule() const;
private:
// NOT TO BE IMPLEMENTED
// This object cannot be allocated on its own, only as part of
// nsCSSFontFaceRule.
void* operator new(size_t size) CPP_THROW_NEW;
};
class nsCSSFontFaceRule : public nsCSSRule,
public nsICSSRule,
public nsIDOMCSSFontFaceRule
{
public:
NS_DECL_ISUPPORTS_INHERITED
// nsIStyleRule methods
#ifdef DEBUG
virtual void List(FILE* out = stdout, PRInt32 aIndent = 0) const;
#endif
// nsICSSRule methods
DECL_STYLE_RULE_INHERIT
virtual PRInt32 GetType() const;
virtual already_AddRefed<nsICSSRule> Clone() const;
// nsIDOMCSSRule interface
NS_DECL_NSIDOMCSSRULE
// nsIDOMCSSFontFaceRule interface
NS_DECL_NSIDOMCSSFONTFACERULE
void SetDesc(nsCSSFontDesc aDescID, nsCSSValue const & aValue);
void GetDesc(nsCSSFontDesc aDescID, nsCSSValue & aValue);
protected:
friend class nsCSSFontFaceStyleDecl;
nsCSSFontFaceStyleDecl mDecl;
};
// nsFontFaceRuleContainer - used for associating sheet type with
// specific @font-face rules
struct nsFontFaceRuleContainer {
nsRefPtr<nsCSSFontFaceRule> mRule;
PRUint8 mSheetType;
};
inline nsCSSFontFaceRule*
nsCSSFontFaceStyleDecl::ContainingRule()
{
return reinterpret_cast<nsCSSFontFaceRule*>
(reinterpret_cast<char*>(this) - offsetof(nsCSSFontFaceRule, mDecl));
}
inline const nsCSSFontFaceRule*
nsCSSFontFaceStyleDecl::ContainingRule() const
{
return reinterpret_cast<const nsCSSFontFaceRule*>
(reinterpret_cast<const char*>(this) - offsetof(nsCSSFontFaceRule, mDecl));
}
#endif /* !defined(nsCSSRules_h_) */