gecko-dev/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:
/* 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 "Declaration.h"
#include "StyleRule.h"
#include "gfxFontFeatures.h"
#include "mozilla/Attributes.h"
#include "mozilla/MemoryReporting.h"
#include "mozilla/Move.h"
#include "mozilla/SheetType.h"
#include "mozilla/css/GroupRule.h"
#include "mozilla/dom/CSSMediaRule.h"
#include "nsAutoPtr.h"
#include "nsCSSPropertyID.h"
#include "nsCSSValue.h"
#include "nsDOMCSSDeclaration.h"
#include "nsIDOMCSSConditionRule.h"
#include "nsIDOMCSSCounterStyleRule.h"
#include "nsIDOMCSSFontFeatureValuesRule.h"
#include "nsIDOMCSSGroupingRule.h"
#include "nsIDOMCSSMozDocumentRule.h"
#include "nsIDOMCSSPageRule.h"
#include "nsIDOMCSSSupportsRule.h"
#include "nsIDOMCSSKeyframeRule.h"
#include "nsIDOMCSSKeyframesRule.h"
#include "nsTArray.h"
class nsMediaList;
namespace mozilla {
class ErrorResult;
namespace dom {
class MediaList;
}
namespace css {
class MediaRule final : public dom::CSSMediaRule
{
public:
MediaRule(uint32_t aLineNumber, uint32_t aColumnNumber);
private:
MediaRule(const MediaRule& aCopy);
~MediaRule();
public:
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(MediaRule, dom::CSSMediaRule)
// Rule methods
#ifdef DEBUG
virtual void List(FILE* out = stdout, int32_t aIndent = 0) const override;
#endif
virtual void SetStyleSheet(mozilla::StyleSheet* aSheet) override; //override GroupRule
mozilla::CSSStyleSheet* GetStyleSheet() const
{
mozilla::StyleSheet* sheet = GroupRule::GetStyleSheet();
return sheet ? sheet->AsGecko() : nullptr;
}
virtual already_AddRefed<Rule> Clone() const override;
// nsIDOMCSSConditionRule interface
NS_DECL_NSIDOMCSSCONDITIONRULE
// rest of GroupRule
virtual bool UseForPresentation(nsPresContext* aPresContext,
nsMediaQueryResultCacheKey& aKey) override;
// @media rule methods
nsresult SetMedia(nsMediaList* aMedia);
// WebIDL interface
void GetCssTextImpl(nsAString& aCssText) const override;
using CSSMediaRule::SetConditionText;
dom::MediaList* Media() override;
virtual size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf)
const override MOZ_MUST_OVERRIDE;
protected:
void AppendConditionText(nsAString& aOutput) const;
RefPtr<nsMediaList> mMedia;
};
class DocumentRule final : public ConditionRule,
public nsIDOMCSSMozDocumentRule
{
public:
DocumentRule(uint32_t aLineNumber, uint32_t aColumnNumber);
private:
DocumentRule(const DocumentRule& aCopy);
~DocumentRule();
public:
NS_DECL_ISUPPORTS_INHERITED
// Rule methods
#ifdef DEBUG
virtual void List(FILE* out = stdout, int32_t aIndent = 0) const override;
#endif
virtual int32_t GetType() const override;
using Rule::GetType;
virtual already_AddRefed<Rule> Clone() const override;
// 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) override;
bool UseForPresentation(nsPresContext* aPresContext);
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; }
// WebIDL interface
uint16_t Type() const override;
void GetCssTextImpl(nsAString& aCssText) const override;
// Our XPCOM GetConditionText is OK
virtual void SetConditionText(const nsAString& aConditionText,
ErrorResult& aRv) override;
virtual size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf)
const override MOZ_MUST_OVERRIDE;
virtual JSObject* WrapObject(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) override;
protected:
void AppendConditionText(nsAString& aOutput) const;
nsAutoPtr<URL> mURLs; // linked list of |struct URL| above.
};
} // namespace css
} // namespace mozilla
class nsCSSFontFeatureValuesRule final : public mozilla::css::Rule,
public nsIDOMCSSFontFeatureValuesRule
{
public:
nsCSSFontFeatureValuesRule(uint32_t aLineNumber, uint32_t aColumnNumber)
: mozilla::css::Rule(aLineNumber, aColumnNumber)
{
}
nsCSSFontFeatureValuesRule(const nsCSSFontFeatureValuesRule& aCopy)
// copy everything except our reference count
: mozilla::css::Rule(aCopy),
mFamilyList(aCopy.mFamilyList),
mFeatureValues(aCopy.mFeatureValues)
{
}
NS_DECL_ISUPPORTS_INHERITED
virtual bool IsCCLeaf() const override;
#ifdef DEBUG
virtual void List(FILE* out = stdout, int32_t aIndent = 0) const override;
#endif
virtual int32_t GetType() const override;
using Rule::GetType;
virtual already_AddRefed<mozilla::css::Rule> Clone() const override;
// nsIDOMCSSFontFaceRule interface
NS_DECL_NSIDOMCSSFONTFEATUREVALUESRULE
// WebIDL interface
uint16_t Type() const override;
void GetCssTextImpl(nsAString& aCssText) const override;
// The XPCOM GetFontFamily is fine
void SetFontFamily(const nsAString& aFamily, mozilla::ErrorResult& aRv);
// The XPCOM GetValueText is fine
void SetValueText(const nsAString& aFamily, mozilla::ErrorResult& aRv);
const mozilla::FontFamilyList& GetFamilyList() { return mFamilyList; }
void SetFamilyList(const mozilla::FontFamilyList& aFamilyList);
void AddValueList(int32_t aVariantAlternate,
nsTArray<gfxFontFeatureValueSet::ValueList>& aValueList);
const nsTArray<gfxFontFeatureValueSet::FeatureValues>& GetFeatureValues()
{
return mFeatureValues;
}
virtual size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const override;
virtual JSObject* WrapObject(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) override;
protected:
~nsCSSFontFeatureValuesRule() {}
mozilla::FontFamilyList mFamilyList;
nsTArray<gfxFontFeatureValueSet::FeatureValues> mFeatureValues;
};
class nsCSSKeyframeRule;
class nsCSSKeyframeStyleDeclaration final : public nsDOMCSSDeclaration
{
public:
explicit nsCSSKeyframeStyleDeclaration(nsCSSKeyframeRule *aRule);
NS_IMETHOD GetParentRule(nsIDOMCSSRule **aParent) override;
void DropReference() { mRule = nullptr; }
virtual mozilla::DeclarationBlock* GetCSSDeclaration(Operation aOperation) override;
virtual nsresult SetCSSDeclaration(mozilla::DeclarationBlock* aDecl) override;
virtual void GetCSSParsingEnvironment(CSSParsingEnvironment& aCSSParseEnv) override;
virtual nsIDocument* DocToUpdate() override;
NS_DECL_CYCLE_COLLECTING_ISUPPORTS
NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS_AMBIGUOUS(nsCSSKeyframeStyleDeclaration,
nsICSSDeclaration)
virtual nsINode* GetParentObject() override;
protected:
virtual ~nsCSSKeyframeStyleDeclaration();
// This reference is not reference-counted. The rule object tells us
// when it's about to go away.
nsCSSKeyframeRule* MOZ_NON_OWNING_REF mRule;
};
class nsCSSKeyframeRule final : public mozilla::css::Rule,
public nsIDOMCSSKeyframeRule
{
public:
// Steals the contents of aKeys, and takes the reference in Declaration
nsCSSKeyframeRule(InfallibleTArray<float>&& aKeys,
already_AddRefed<mozilla::css::Declaration>&& aDeclaration,
uint32_t aLineNumber, uint32_t aColumnNumber)
: mozilla::css::Rule(aLineNumber, aColumnNumber)
, mKeys(mozilla::Move(aKeys))
, mDeclaration(mozilla::Move(aDeclaration))
{
mDeclaration->SetOwningRule(this);
}
private:
nsCSSKeyframeRule(const nsCSSKeyframeRule& aCopy);
~nsCSSKeyframeRule();
public:
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(nsCSSKeyframeRule, mozilla::css::Rule)
virtual bool IsCCLeaf() const override;
#ifdef DEBUG
virtual void List(FILE* out = stdout, int32_t aIndent = 0) const override;
#endif
virtual int32_t GetType() const override;
using Rule::GetType;
virtual already_AddRefed<mozilla::css::Rule> Clone() const override;
// nsIDOMCSSKeyframeRule interface
NS_DECL_NSIDOMCSSKEYFRAMERULE
// WebIDL interface
uint16_t Type() const override;
void GetCssTextImpl(nsAString& aCssText) const override;
// The XPCOM GetKeyText is fine.
// The XPCOM SetKeyText is fine.
nsICSSDeclaration* Style();
const nsTArray<float>& GetKeys() const { return mKeys; }
mozilla::css::Declaration* Declaration() { return mDeclaration; }
void ChangeDeclaration(mozilla::css::Declaration* aDeclaration);
virtual size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const override;
virtual JSObject* WrapObject(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) override;
void DoGetKeyText(nsAString &aKeyText) const;
private:
nsTArray<float> mKeys;
RefPtr<mozilla::css::Declaration> mDeclaration;
// lazily created when needed:
RefPtr<nsCSSKeyframeStyleDeclaration> mDOMDeclaration;
};
class nsCSSKeyframesRule final : public mozilla::css::GroupRule,
public nsIDOMCSSKeyframesRule
{
public:
nsCSSKeyframesRule(const nsSubstring& aName,
uint32_t aLineNumber, uint32_t aColumnNumber)
: mozilla::css::GroupRule(aLineNumber, aColumnNumber)
, mName(aName)
{
}
private:
nsCSSKeyframesRule(const nsCSSKeyframesRule& aCopy);
~nsCSSKeyframesRule();
public:
NS_DECL_ISUPPORTS_INHERITED
// Rule methods
#ifdef DEBUG
virtual void List(FILE* out = stdout, int32_t aIndent = 0) const override;
#endif
virtual int32_t GetType() const override;
using Rule::GetType;
virtual already_AddRefed<mozilla::css::Rule> Clone() const override;
// nsIDOMCSSKeyframesRule interface
NS_DECL_NSIDOMCSSKEYFRAMESRULE
// WebIDL interface
uint16_t Type() const override;
void GetCssTextImpl(nsAString& aCssText) const override;
// The XPCOM GetName is OK
// The XPCOM SetName is OK
using mozilla::css::GroupRule::CssRules;
// The XPCOM appendRule is OK, since it never throws
// The XPCOM deleteRule is OK, since it never throws
nsCSSKeyframeRule* FindRule(const nsAString& aKey);
// rest of GroupRule
virtual bool UseForPresentation(nsPresContext* aPresContext,
nsMediaQueryResultCacheKey& aKey) override;
const nsString& GetName() { return mName; }
virtual size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const override;
virtual JSObject* WrapObject(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) override;
private:
uint32_t FindRuleIndexForKey(const nsAString& aKey);
nsString mName;
};
class nsCSSPageRule;
class nsCSSPageStyleDeclaration final : public nsDOMCSSDeclaration
{
public:
explicit nsCSSPageStyleDeclaration(nsCSSPageRule *aRule);
NS_IMETHOD GetParentRule(nsIDOMCSSRule **aParent) override;
void DropReference() { mRule = nullptr; }
virtual mozilla::DeclarationBlock* GetCSSDeclaration(Operation aOperation) override;
virtual nsresult SetCSSDeclaration(mozilla::DeclarationBlock* aDecl) override;
virtual void GetCSSParsingEnvironment(CSSParsingEnvironment& aCSSParseEnv) override;
virtual nsIDocument* DocToUpdate() override;
NS_DECL_CYCLE_COLLECTING_ISUPPORTS
NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS_AMBIGUOUS(nsCSSPageStyleDeclaration,
nsICSSDeclaration)
virtual nsINode *GetParentObject() override;
protected:
virtual ~nsCSSPageStyleDeclaration();
// This reference is not reference-counted. The rule object tells us
// when it's about to go away.
nsCSSPageRule* MOZ_NON_OWNING_REF mRule;
};
class nsCSSPageRule final : public mozilla::css::Rule,
public nsIDOMCSSPageRule
{
public:
nsCSSPageRule(mozilla::css::Declaration* aDeclaration,
uint32_t aLineNumber, uint32_t aColumnNumber)
: mozilla::css::Rule(aLineNumber, aColumnNumber)
, mDeclaration(aDeclaration)
{
mDeclaration->SetOwningRule(this);
}
private:
nsCSSPageRule(const nsCSSPageRule& aCopy);
~nsCSSPageRule();
public:
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(nsCSSPageRule, mozilla::css::Rule)
virtual bool IsCCLeaf() const override;
#ifdef DEBUG
virtual void List(FILE* out = stdout, int32_t aIndent = 0) const override;
#endif
virtual int32_t GetType() const override;
using Rule::GetType;
virtual already_AddRefed<mozilla::css::Rule> Clone() const override;
// nsIDOMCSSPageRule interface
NS_DECL_NSIDOMCSSPAGERULE
// WebIDL interface
uint16_t Type() const override;
void GetCssTextImpl(nsAString& aCssText) const override;
nsICSSDeclaration* Style();
mozilla::css::Declaration* Declaration() { return mDeclaration; }
void ChangeDeclaration(mozilla::css::Declaration* aDeclaration);
virtual size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const override;
virtual JSObject* WrapObject(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) override;
private:
RefPtr<mozilla::css::Declaration> mDeclaration;
// lazily created when needed:
RefPtr<nsCSSPageStyleDeclaration> mDOMDeclaration;
};
namespace mozilla {
class CSSSupportsRule final : public css::ConditionRule,
public nsIDOMCSSSupportsRule
{
public:
CSSSupportsRule(bool aConditionMet, const nsString& aCondition,
uint32_t aLineNumber, uint32_t aColumnNumber);
CSSSupportsRule(const CSSSupportsRule& aCopy);
// Rule methods
#ifdef DEBUG
virtual void List(FILE* out = stdout, int32_t aIndent = 0) const override;
#endif
virtual int32_t GetType() const override;
using Rule::GetType;
virtual already_AddRefed<mozilla::css::Rule> Clone() const override;
virtual bool UseForPresentation(nsPresContext* aPresContext,
nsMediaQueryResultCacheKey& aKey) override;
NS_DECL_ISUPPORTS_INHERITED
// nsIDOMCSSGroupingRule interface
NS_DECL_NSIDOMCSSGROUPINGRULE
// nsIDOMCSSConditionRule interface
NS_DECL_NSIDOMCSSCONDITIONRULE
// nsIDOMCSSSupportsRule interface
NS_DECL_NSIDOMCSSSUPPORTSRULE
// WebIDL interface
uint16_t Type() const override;
void GetCssTextImpl(nsAString& aCssText) const override;
// Our XPCOM GetConditionText is OK
virtual void SetConditionText(const nsAString& aConditionText,
ErrorResult& aRv) override;
virtual size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const override;
virtual JSObject* WrapObject(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) override;
protected:
virtual ~CSSSupportsRule();
bool mUseGroup;
nsString mCondition;
};
} // namespace mozilla
class nsCSSCounterStyleRule final : public mozilla::css::Rule,
public nsIDOMCSSCounterStyleRule
{
public:
explicit nsCSSCounterStyleRule(const nsAString& aName,
uint32_t aLineNumber, uint32_t aColumnNumber)
: mozilla::css::Rule(aLineNumber, aColumnNumber)
, mName(aName)
, mGeneration(0)
{
}
private:
nsCSSCounterStyleRule(const nsCSSCounterStyleRule& aCopy);
~nsCSSCounterStyleRule();
public:
NS_DECL_ISUPPORTS_INHERITED
virtual bool IsCCLeaf() const override;
#ifdef DEBUG
virtual void List(FILE* out = stdout, int32_t aIndent = 0) const override;
#endif
virtual int32_t GetType() const override;
using Rule::GetType;
virtual already_AddRefed<mozilla::css::Rule> Clone() const override;
// nsIDOMCSSCounterStyleRule
NS_DECL_NSIDOMCSSCOUNTERSTYLERULE
// WebIDL interface
uint16_t Type() const override;
void GetCssTextImpl(nsAString& aCssText) const override;
// The XPCOM GetName is OK
// The XPCOM SetName is OK
// The XPCOM GetSystem is OK
// The XPCOM SetSystem is OK
// The XPCOM GetSymbols is OK
// The XPCOM SetSymbols is OK
// The XPCOM GetAdditiveSymbols is OK
// The XPCOM SetAdditiveSymbols is OK
// The XPCOM GetNegative is OK
// The XPCOM SetNegative is OK
// The XPCOM GetPrefix is OK
// The XPCOM SetPrefix is OK
// The XPCOM GetSuffix is OK
// The XPCOM SetSuffix is OK
// The XPCOM GetRange is OK
// The XPCOM SetRange is OK
// The XPCOM GetPad is OK
// The XPCOM SetPad is OK
// The XPCOM GetSpeakAs is OK
// The XPCOM SetSpeakAs is OK
// The XPCOM GetFallback is OK
// The XPCOM SetFallback is OK
// This function is only used to check whether a non-empty value, which has
// been accepted by parser, is valid for the given system and descriptor.
static bool CheckDescValue(int32_t aSystem,
nsCSSCounterDesc aDescID,
const nsCSSValue& aValue);
const nsString& GetName() const { return mName; }
uint32_t GetGeneration() const { return mGeneration; }
int32_t GetSystem() const;
const nsCSSValue& GetSystemArgument() const;
const nsCSSValue& GetDesc(nsCSSCounterDesc aDescID) const
{
MOZ_ASSERT(aDescID >= 0 && aDescID < eCSSCounterDesc_COUNT,
"descriptor ID out of range");
return mValues[aDescID];
}
void SetDesc(nsCSSCounterDesc aDescID, const nsCSSValue& aValue);
virtual size_t SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const override;
virtual JSObject* WrapObject(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) override;
private:
typedef NS_STDCALL_FUNCPROTO(nsresult, Getter, nsCSSCounterStyleRule,
GetSymbols, (nsAString&));
static const Getter kGetters[];
nsresult GetDescriptor(nsCSSCounterDesc aDescID, nsAString& aValue);
nsresult SetDescriptor(nsCSSCounterDesc aDescID, const nsAString& aValue);
nsString mName;
nsCSSValue mValues[eCSSCounterDesc_COUNT];
uint32_t mGeneration;
};
#endif /* !defined(nsCSSRules_h_) */