gecko-dev/layout/style/nsCSSRules.h

589 lines
15 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
// vim:cindent:ts=2:et:sw=2:
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
/* 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 "mozilla/Preferences.h"
#include "nsIDOMCSSConditionRule.h"
#include "nsIDOMCSSFontFaceRule.h"
#include "nsIDOMCSSGroupingRule.h"
#include "nsIDOMCSSMediaRule.h"
#include "nsIDOMCSSMozDocumentRule.h"
#include "nsIDOMCSSSupportsRule.h"
#include "nsIDOMMozCSSKeyframeRule.h"
#include "nsIDOMMozCSSKeyframesRule.h"
#include "nsIDOMCSSStyleDeclaration.h"
#include "nsAutoPtr.h"
#include "nsCSSProperty.h"
#include "nsCSSValue.h"
#include "nsIDOMCSSCharsetRule.h"
#include "nsTArray.h"
#include "nsDOMCSSDeclaration.h"
#include "Declaration.h"
#include "nsIDOMCSSPageRule.h"
#include "StyleRule.h"
class nsMediaList;
namespace mozilla {
class ErrorResult;
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, int32_t aIndent = 0) const;
#endif
// Rule methods
virtual void SetStyleSheet(nsCSSStyleSheet* aSheet); //override GroupRule
virtual int32_t GetType() const;
virtual already_AddRefed<Rule> Clone() const;
virtual nsIDOMCSSRule* GetDOMRule()
{
return this;
}
virtual nsIDOMCSSRule* GetExistingDOMRule()
{
return this;
}
// nsIDOMCSSRule interface
NS_DECL_NSIDOMCSSRULE
// nsIDOMCSSGroupingRule interface
NS_DECL_NSIDOMCSSGROUPINGRULE
// nsIDOMCSSConditionRule interface
NS_DECL_NSIDOMCSSCONDITIONRULE
// nsIDOMCSSMediaRule interface
NS_DECL_NSIDOMCSSMEDIARULE
// rest of GroupRule
virtual bool UseForPresentation(nsPresContext* aPresContext,
nsMediaQueryResultCacheKey& aKey);
// @media rule methods
nsresult SetMedia(nsMediaList* aMedia);
virtual size_t SizeOfIncludingThis(nsMallocSizeOfFun aMallocSizeOf)
const MOZ_MUST_OVERRIDE;
protected:
void AppendConditionText(nsAString& aOutput);
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, int32_t aIndent = 0) const;
#endif
// Rule methods
virtual int32_t GetType() const;
virtual already_AddRefed<Rule> Clone() const;
virtual nsIDOMCSSRule* GetDOMRule()
{
return this;
}
virtual nsIDOMCSSRule* GetExistingDOMRule()
{
return this;
}
// nsIDOMCSSRule interface
NS_DECL_NSIDOMCSSRULE
// nsIDOMCSSGroupingRule interface
NS_DECL_NSIDOMCSSGROUPINGRULE
// nsIDOMCSSConditionRule interface
NS_DECL_NSIDOMCSSCONDITIONRULE
// 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(nullptr) {}
URL(const URL& aOther)
: func(aOther.func)
, url(aOther.url)
, next(aOther.next ? new URL(*aOther.next) : nullptr)
{
}
~URL();
};
void SetURLs(URL *aURLs) { mURLs = aURLs; }
virtual size_t SizeOfIncludingThis(nsMallocSizeOfFun aMallocSizeOf)
const MOZ_MUST_OVERRIDE;
protected:
void AppendConditionText(nsAString& aOutput);
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 nsICSSDeclaration
{
public:
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_NSIDOMCSSSTYLEDECLARATION_HELPER
NS_DECL_NSICSSDECLARATION
virtual already_AddRefed<mozilla::dom::CSSValue>
GetPropertyCSSValue(const nsAString& aProp, mozilla::ErrorResult& aRv)
MOZ_OVERRIDE;
using nsICSSDeclaration::GetPropertyCSSValue;
nsCSSFontFaceStyleDecl()
{
SetIsDOMBinding();
}
virtual nsINode *GetParentObject() MOZ_OVERRIDE;
virtual void IndexedGetter(uint32_t aIndex, bool& aFound, nsAString& aPropName) MOZ_OVERRIDE;
nsresult GetPropertyValue(nsCSSFontDesc aFontDescID,
nsAString & aResult) const;
virtual JSObject* WrapObject(JSContext *cx,
JS::Handle<JSObject*> scope) MOZ_OVERRIDE;
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_CYCLE_COLLECTING_ISUPPORTS
NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS_AMBIGUOUS(nsCSSFontFaceRule,
mozilla::css::Rule)
// nsIStyleRule methods
#ifdef DEBUG
virtual void List(FILE* out = stdout, int32_t aIndent = 0) const;
#endif
// Rule methods
DECL_STYLE_RULE_INHERIT
virtual int32_t 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);
virtual size_t SizeOfIncludingThis(nsMallocSizeOfFun aMallocSizeOf) const MOZ_OVERRIDE;
protected:
friend class nsCSSFontFaceStyleDecl;
nsCSSFontFaceStyleDecl mDecl;
};
// nsFontFaceRuleContainer - used for associating sheet type with
// specific @font-face rules
struct nsFontFaceRuleContainer {
nsRefPtr<nsCSSFontFaceRule> mRule;
uint8_t 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
DECL_STYLE_RULE_INHERIT
// nsIStyleRule methods
#ifdef DEBUG
virtual void List(FILE* out = stdout, int32_t aIndent = 0) const;
#endif
// Rule methods
virtual int32_t 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);
virtual size_t SizeOfIncludingThis(nsMallocSizeOfFun aMallocSizeOf) const;
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) MOZ_OVERRIDE;
void DropReference() { mRule = nullptr; }
virtual mozilla::css::Declaration* GetCSSDeclaration(bool aAllocate) MOZ_OVERRIDE;
virtual nsresult SetCSSDeclaration(mozilla::css::Declaration* aDecl) MOZ_OVERRIDE;
virtual void GetCSSParsingEnvironment(CSSParsingEnvironment& aCSSParseEnv) MOZ_OVERRIDE;
virtual nsIDocument* DocToUpdate() MOZ_OVERRIDE;
NS_DECL_CYCLE_COLLECTING_ISUPPORTS
NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS_AMBIGUOUS(nsCSSKeyframeStyleDeclaration,
nsICSSDeclaration)
virtual nsINode* GetParentObject();
protected:
// 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(InfallibleTArray<float>& aKeys,
nsAutoPtr<mozilla::css::Declaration> aDeclaration)
: mDeclaration(aDeclaration)
{
mKeys.SwapElements(aKeys);
}
private:
nsCSSKeyframeRule(const nsCSSKeyframeRule& aCopy);
~nsCSSKeyframeRule();
public:
NS_DECL_CYCLE_COLLECTING_ISUPPORTS
NS_DECL_CYCLE_COLLECTION_CLASS_AMBIGUOUS(nsCSSKeyframeRule, nsIStyleRule)
// nsIStyleRule methods
#ifdef DEBUG
virtual void List(FILE* out = stdout, int32_t aIndent = 0) const;
#endif
// Rule methods
DECL_STYLE_RULE_INHERIT
virtual int32_t 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);
virtual size_t SizeOfIncludingThis(nsMallocSizeOfFun aMallocSizeOf) const MOZ_OVERRIDE;
void DoGetKeyText(nsAString &aKeyText) const;
private:
nsTArray<float> 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, int32_t aIndent = 0) const;
#endif
// Rule methods
virtual int32_t GetType() const;
virtual already_AddRefed<mozilla::css::Rule> Clone() const;
virtual nsIDOMCSSRule* GetDOMRule()
{
return this;
}
virtual nsIDOMCSSRule* GetExistingDOMRule()
{
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; }
virtual size_t SizeOfIncludingThis(nsMallocSizeOfFun aMallocSizeOf) const MOZ_OVERRIDE;
private:
uint32_t FindRuleIndexForKey(const nsAString& aKey);
nsString mName;
};
class nsCSSPageRule;
class nsCSSPageStyleDeclaration MOZ_FINAL : public nsDOMCSSDeclaration
{
public:
nsCSSPageStyleDeclaration(nsCSSPageRule *aRule);
virtual ~nsCSSPageStyleDeclaration();
NS_IMETHOD GetParentRule(nsIDOMCSSRule **aParent) MOZ_OVERRIDE;
void DropReference() { mRule = nullptr; }
virtual mozilla::css::Declaration* GetCSSDeclaration(bool aAllocate) MOZ_OVERRIDE;
virtual nsresult SetCSSDeclaration(mozilla::css::Declaration* aDecl) MOZ_OVERRIDE;
virtual void GetCSSParsingEnvironment(CSSParsingEnvironment& aCSSParseEnv) MOZ_OVERRIDE;
virtual nsIDocument* DocToUpdate() MOZ_OVERRIDE;
NS_DECL_CYCLE_COLLECTING_ISUPPORTS
NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS_AMBIGUOUS(nsCSSPageStyleDeclaration,
nsICSSDeclaration)
virtual nsINode *GetParentObject();
protected:
// This reference is not reference-counted. The rule object tells us
// when it's about to go away.
nsCSSPageRule *mRule;
};
class nsCSSPageRule MOZ_FINAL : public mozilla::css::Rule,
public nsIDOMCSSPageRule
{
public:
// WARNING: Steals the contents of aDeclaration
nsCSSPageRule(nsAutoPtr<mozilla::css::Declaration> aDeclaration)
: mDeclaration(aDeclaration),
mImportantRule(nullptr)
{
}
private:
nsCSSPageRule(const nsCSSPageRule& aCopy);
~nsCSSPageRule();
public:
NS_DECL_ISUPPORTS
// nsIStyleRule methods
#ifdef DEBUG
virtual void List(FILE* out = stdout, int32_t aIndent = 0) const;
#endif
// Rule methods
DECL_STYLE_RULE_INHERIT
virtual int32_t GetType() const;
virtual already_AddRefed<mozilla::css::Rule> Clone() const;
// nsIDOMCSSRule interface
NS_DECL_NSIDOMCSSRULE
// nsIDOMCSSPageRule interface
NS_DECL_NSIDOMCSSPAGERULE
mozilla::css::Declaration* Declaration() { return mDeclaration; }
void ChangeDeclaration(mozilla::css::Declaration* aDeclaration);
mozilla::css::ImportantRule* GetImportantRule();
virtual size_t SizeOfIncludingThis(nsMallocSizeOfFun aMallocSizeOf) const;
private:
nsAutoPtr<mozilla::css::Declaration> mDeclaration;
// lazily created when needed:
nsRefPtr<nsCSSPageStyleDeclaration> mDOMDeclaration;
nsRefPtr<mozilla::css::ImportantRule> mImportantRule;
};
namespace mozilla {
class CSSSupportsRule : public css::GroupRule,
public nsIDOMCSSSupportsRule
{
public:
CSSSupportsRule(bool aConditionMet, const nsString& aCondition);
CSSSupportsRule(const CSSSupportsRule& aCopy);
// nsIStyleRule methods
#ifdef DEBUG
virtual void List(FILE* out = stdout, int32_t aIndent = 0) const;
#endif
// Rule methods
virtual int32_t GetType() const;
virtual already_AddRefed<mozilla::css::Rule> Clone() const;
virtual bool UseForPresentation(nsPresContext* aPresContext,
nsMediaQueryResultCacheKey& aKey);
virtual nsIDOMCSSRule* GetDOMRule()
{
return this;
}
virtual nsIDOMCSSRule* GetExistingDOMRule()
{
return this;
}
NS_DECL_ISUPPORTS_INHERITED
// nsIDOMCSSRule interface
NS_DECL_NSIDOMCSSRULE
// nsIDOMCSSGroupingRule interface
NS_DECL_NSIDOMCSSGROUPINGRULE
// nsIDOMCSSConditionRule interface
NS_DECL_NSIDOMCSSCONDITIONRULE
// nsIDOMCSSSupportsRule interface
NS_DECL_NSIDOMCSSSUPPORTSRULE
virtual size_t SizeOfIncludingThis(nsMallocSizeOfFun aMallocSizeOf) const;
static bool PrefEnabled()
{
return Preferences::GetBool("layout.css.supports-rule.enabled");
}
protected:
bool mUseGroup;
nsString mCondition;
};
} // namespace mozilla
#endif /* !defined(nsCSSRules_h_) */