gecko/layout/style/nsCSSRules.h

434 lines
11 KiB
C++

/* -*- 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 "mozilla/Attributes.h"
#include "mozilla/css/GroupRule.h"
#include "nsIDOMCSSMediaRule.h"
#include "nsIDOMCSSMozDocumentRule.h"
#include "nsIDOMCSSFontFaceRule.h"
#include "nsIDOMMozCSSKeyframeRule.h"
#include "nsIDOMMozCSSKeyframesRule.h"
#include "nsIDOMCSSStyleDeclaration.h"
#include "nsICSSRuleList.h"
#include "nsAutoPtr.h"
#include "nsCSSProperty.h"
#include "nsCSSValue.h"
#include "nsIDOMCSSCharsetRule.h"
#include "nsTArray.h"
#include "nsDOMCSSDeclaration.h"
#include "Declaration.h"
namespace mozilla {
namespace css {
class StyleRule;
}
}
class nsMediaList;
namespace mozilla {
namespace css {
class MediaRule MOZ_FINAL : public GroupRule,
public nsIDOMCSSMediaRule
{
public:
MediaRule();
private:
MediaRule(const MediaRule& aCopy);
~MediaRule();
public:
NS_DECL_ISUPPORTS_INHERITED
// nsIStyleRule methods
#ifdef DEBUG
virtual void List(FILE* out = stdout, PRInt32 aIndent = 0) const;
#endif
// Rule methods
virtual void SetStyleSheet(nsCSSStyleSheet* aSheet); //override GroupRule
virtual PRInt32 GetType() const;
virtual already_AddRefed<Rule> Clone() const;
virtual nsIDOMCSSRule* GetDOMRule()
{
return this;
}
// nsIDOMCSSRule interface
NS_DECL_NSIDOMCSSRULE
// nsIDOMCSSMediaRule interface
NS_DECL_NSIDOMCSSMEDIARULE
// rest of GroupRule
virtual bool UseForPresentation(nsPresContext* aPresContext,
nsMediaQueryResultCacheKey& aKey);
// @media rule methods
nsresult SetMedia(nsMediaList* aMedia);
protected:
nsRefPtr<nsMediaList> mMedia;
};
class DocumentRule MOZ_FINAL : public GroupRule,
public nsIDOMCSSMozDocumentRule
{
public:
DocumentRule();
private:
DocumentRule(const DocumentRule& aCopy);
~DocumentRule();
public:
NS_DECL_ISUPPORTS_INHERITED
// nsIStyleRule methods
#ifdef DEBUG
virtual void List(FILE* out = stdout, PRInt32 aIndent = 0) const;
#endif
// Rule methods
virtual PRInt32 GetType() const;
virtual already_AddRefed<Rule> Clone() const;
virtual nsIDOMCSSRule* GetDOMRule()
{
return this;
}
// nsIDOMCSSRule interface
NS_DECL_NSIDOMCSSRULE
// nsIDOMCSSMozDocumentRule interface
NS_DECL_NSIDOMCSSMOZDOCUMENTRULE
// rest of GroupRule
virtual bool UseForPresentation(nsPresContext* aPresContext,
nsMediaQueryResultCacheKey& aKey);
enum Function {
eURL,
eURLPrefix,
eDomain,
eRegExp
};
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.
};
} // namespace css
} // namespace mozilla
// 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;
#define CSS_FONT_DESC(name_, method_) nsCSSValue m##method_;
#include "nsCSSFontDescList.h"
#undef CSS_FONT_DESC
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 MOZ_FINAL : public mozilla::css::Rule,
public nsIDOMCSSFontFaceRule
{
public:
nsCSSFontFaceRule() {}
nsCSSFontFaceRule(const nsCSSFontFaceRule& aCopy)
// copy everything except our reference count
: mozilla::css::Rule(aCopy), mDecl(aCopy.mDecl) {}
NS_DECL_ISUPPORTS_INHERITED
// nsIStyleRule methods
#ifdef DEBUG
virtual void List(FILE* out = stdout, PRInt32 aIndent = 0) const;
#endif
// Rule methods
DECL_STYLE_RULE_INHERIT
virtual PRInt32 GetType() const;
virtual already_AddRefed<mozilla::css::Rule> 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));
}
namespace mozilla {
namespace css {
class CharsetRule MOZ_FINAL : public Rule,
public nsIDOMCSSCharsetRule
{
public:
CharsetRule(const nsAString& aEncoding);
private:
// For |Clone|
CharsetRule(const CharsetRule& aCopy);
~CharsetRule() {}
public:
NS_DECL_ISUPPORTS_INHERITED
DECL_STYLE_RULE_INHERIT
// nsIStyleRule methods
#ifdef DEBUG
virtual void List(FILE* out = stdout, PRInt32 aIndent = 0) const;
#endif
// Rule methods
virtual PRInt32 GetType() const;
virtual already_AddRefed<Rule> Clone() const;
// nsIDOMCSSRule interface
NS_DECL_NSIDOMCSSRULE
// nsIDOMCSSCharsetRule methods
NS_IMETHOD GetEncoding(nsAString& aEncoding);
NS_IMETHOD SetEncoding(const nsAString& aEncoding);
private:
nsString mEncoding;
};
} // namespace css
} // namespace mozilla
class nsCSSKeyframeRule;
class nsCSSKeyframeStyleDeclaration MOZ_FINAL : public nsDOMCSSDeclaration
{
public:
nsCSSKeyframeStyleDeclaration(nsCSSKeyframeRule *aRule);
virtual ~nsCSSKeyframeStyleDeclaration();
NS_IMETHOD GetParentRule(nsIDOMCSSRule **aParent);
void DropReference() { mRule = nsnull; }
virtual mozilla::css::Declaration* GetCSSDeclaration(bool aAllocate);
virtual nsresult SetCSSDeclaration(mozilla::css::Declaration* aDecl);
virtual void GetCSSParsingEnvironment(CSSParsingEnvironment& aCSSParseEnv);
virtual nsIDocument* DocToUpdate();
NS_IMETHOD_(nsrefcnt) AddRef();
NS_IMETHOD_(nsrefcnt) Release();
virtual nsINode *GetParentObject()
{
return nsnull;
}
protected:
nsAutoRefCnt mRefCnt;
NS_DECL_OWNINGTHREAD
// This reference is not reference-counted. The rule object tells us
// when it's about to go away.
nsCSSKeyframeRule *mRule;
};
class nsCSSKeyframeRule MOZ_FINAL : public mozilla::css::Rule,
public nsIDOMMozCSSKeyframeRule
{
public:
// WARNING: Steals the contents of aKeys *and* aDeclaration
nsCSSKeyframeRule(nsTArray<float> aKeys,
nsAutoPtr<mozilla::css::Declaration> aDeclaration)
: mDeclaration(aDeclaration)
{
mKeys.SwapElements(aKeys);
}
private:
nsCSSKeyframeRule(const nsCSSKeyframeRule& aCopy);
~nsCSSKeyframeRule();
public:
NS_DECL_ISUPPORTS_INHERITED
// nsIStyleRule methods
#ifdef DEBUG
virtual void List(FILE* out = stdout, PRInt32 aIndent = 0) const;
#endif
// Rule methods
DECL_STYLE_RULE_INHERIT
virtual PRInt32 GetType() const;
virtual already_AddRefed<mozilla::css::Rule> Clone() const;
// nsIDOMCSSRule interface
NS_DECL_NSIDOMCSSRULE
// nsIDOMMozCSSKeyframeRule interface
NS_DECL_NSIDOMMOZCSSKEYFRAMERULE
const nsTArray<float>& GetKeys() const { return mKeys; }
mozilla::css::Declaration* Declaration() { return mDeclaration; }
void ChangeDeclaration(mozilla::css::Declaration* aDeclaration);
private:
nsAutoTArray<float, 1> mKeys;
nsAutoPtr<mozilla::css::Declaration> mDeclaration;
// lazily created when needed:
nsRefPtr<nsCSSKeyframeStyleDeclaration> mDOMDeclaration;
};
class nsCSSKeyframesRule MOZ_FINAL : public mozilla::css::GroupRule,
public nsIDOMMozCSSKeyframesRule
{
public:
nsCSSKeyframesRule(const nsSubstring& aName)
: mName(aName)
{
}
private:
nsCSSKeyframesRule(const nsCSSKeyframesRule& aCopy);
~nsCSSKeyframesRule();
public:
NS_DECL_ISUPPORTS_INHERITED
// nsIStyleRule methods
#ifdef DEBUG
virtual void List(FILE* out = stdout, PRInt32 aIndent = 0) const;
#endif
// Rule methods
virtual PRInt32 GetType() const;
virtual already_AddRefed<mozilla::css::Rule> Clone() const;
virtual nsIDOMCSSRule* GetDOMRule()
{
return this;
}
// nsIDOMCSSRule interface
NS_DECL_NSIDOMCSSRULE
// nsIDOMMozCSSKeyframesRule interface
NS_DECL_NSIDOMMOZCSSKEYFRAMESRULE
// rest of GroupRule
virtual bool UseForPresentation(nsPresContext* aPresContext,
nsMediaQueryResultCacheKey& aKey);
const nsString& GetName() { return mName; }
private:
PRUint32 FindRuleIndexForKey(const nsAString& aKey);
nsString mName;
};
#endif /* !defined(nsCSSRules_h_) */