mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
33bb32f549
This patch was automatically generated using the following script:
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-o -iname "*.h" \
-o -iname "*.c" \
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}
convert MOZ_OVERRIDE override
convert MOZ_FINAL final
1578 lines
43 KiB
C++
1578 lines
43 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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/*
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* representation of CSS style rules (selectors+declaration), CSS
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* selectors, and DOM objects for style rules, selectors, and
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* declarations
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*/
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#include "mozilla/css/StyleRule.h"
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#include "mozilla/CSSStyleSheet.h"
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#include "mozilla/MemoryReporting.h"
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#include "mozilla/css/GroupRule.h"
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#include "mozilla/css/Declaration.h"
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#include "nsIDocument.h"
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#include "nsIAtom.h"
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#include "nsString.h"
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#include "nsStyleUtil.h"
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#include "nsICSSStyleRuleDOMWrapper.h"
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#include "nsDOMCSSDeclaration.h"
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#include "nsNameSpaceManager.h"
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#include "nsXMLNameSpaceMap.h"
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#include "nsCSSPseudoElements.h"
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#include "nsCSSPseudoClasses.h"
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#include "nsCSSAnonBoxes.h"
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#include "nsTArray.h"
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#include "nsDOMClassInfoID.h"
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#include "nsContentUtils.h"
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#include "nsError.h"
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#include "mozAutoDocUpdate.h"
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class nsIDOMCSSStyleDeclaration;
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class nsIDOMCSSStyleSheet;
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using namespace mozilla;
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#define NS_IF_CLONE(member_) \
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PR_BEGIN_MACRO \
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if (member_) { \
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result->member_ = member_->Clone(); \
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if (!result->member_) { \
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delete result; \
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return nullptr; \
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} \
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} \
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PR_END_MACRO
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#define NS_IF_DELETE(ptr) \
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PR_BEGIN_MACRO \
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delete ptr; \
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ptr = nullptr; \
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PR_END_MACRO
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/* ************************************************************************** */
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nsAtomList::nsAtomList(nsIAtom* aAtom)
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: mAtom(aAtom),
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mNext(nullptr)
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{
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MOZ_COUNT_CTOR(nsAtomList);
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}
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nsAtomList::nsAtomList(const nsString& aAtomValue)
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: mAtom(nullptr),
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mNext(nullptr)
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{
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MOZ_COUNT_CTOR(nsAtomList);
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mAtom = do_GetAtom(aAtomValue);
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}
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nsAtomList*
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nsAtomList::Clone(bool aDeep) const
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{
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nsAtomList *result = new nsAtomList(mAtom);
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if (!result)
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return nullptr;
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if (aDeep)
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NS_CSS_CLONE_LIST_MEMBER(nsAtomList, this, mNext, result, (false));
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return result;
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}
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size_t
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nsAtomList::SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const
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{
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size_t n = 0;
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const nsAtomList* a = this;
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while (a) {
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n += aMallocSizeOf(a);
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// The following members aren't measured:
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// - a->mAtom, because it may be shared
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a = a->mNext;
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}
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return n;
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}
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nsAtomList::~nsAtomList(void)
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{
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MOZ_COUNT_DTOR(nsAtomList);
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NS_CSS_DELETE_LIST_MEMBER(nsAtomList, this, mNext);
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}
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nsPseudoClassList::nsPseudoClassList(nsCSSPseudoClasses::Type aType)
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: mType(aType),
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mNext(nullptr)
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{
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NS_ASSERTION(!nsCSSPseudoClasses::HasStringArg(aType) &&
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!nsCSSPseudoClasses::HasNthPairArg(aType),
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"unexpected pseudo-class");
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MOZ_COUNT_CTOR(nsPseudoClassList);
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u.mMemory = nullptr;
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}
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nsPseudoClassList::nsPseudoClassList(nsCSSPseudoClasses::Type aType,
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const char16_t* aString)
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: mType(aType),
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mNext(nullptr)
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{
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NS_ASSERTION(nsCSSPseudoClasses::HasStringArg(aType),
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"unexpected pseudo-class");
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NS_ASSERTION(aString, "string expected");
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MOZ_COUNT_CTOR(nsPseudoClassList);
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u.mString = NS_strdup(aString);
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}
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nsPseudoClassList::nsPseudoClassList(nsCSSPseudoClasses::Type aType,
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const int32_t* aIntPair)
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: mType(aType),
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mNext(nullptr)
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{
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NS_ASSERTION(nsCSSPseudoClasses::HasNthPairArg(aType),
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"unexpected pseudo-class");
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NS_ASSERTION(aIntPair, "integer pair expected");
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MOZ_COUNT_CTOR(nsPseudoClassList);
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u.mNumbers =
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static_cast<int32_t*>(nsMemory::Clone(aIntPair, sizeof(int32_t) * 2));
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}
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// adopts aSelectorList
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nsPseudoClassList::nsPseudoClassList(nsCSSPseudoClasses::Type aType,
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nsCSSSelectorList* aSelectorList)
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: mType(aType),
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mNext(nullptr)
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{
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NS_ASSERTION(nsCSSPseudoClasses::HasSelectorListArg(aType),
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"unexpected pseudo-class");
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NS_ASSERTION(aSelectorList, "selector list expected");
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MOZ_COUNT_CTOR(nsPseudoClassList);
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u.mSelectors = aSelectorList;
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}
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nsPseudoClassList*
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nsPseudoClassList::Clone(bool aDeep) const
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{
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nsPseudoClassList *result;
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if (!u.mMemory) {
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result = new nsPseudoClassList(mType);
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} else if (nsCSSPseudoClasses::HasStringArg(mType)) {
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result = new nsPseudoClassList(mType, u.mString);
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} else if (nsCSSPseudoClasses::HasNthPairArg(mType)) {
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result = new nsPseudoClassList(mType, u.mNumbers);
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} else {
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NS_ASSERTION(nsCSSPseudoClasses::HasSelectorListArg(mType),
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"unexpected pseudo-class");
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// This constructor adopts its selector list argument.
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result = new nsPseudoClassList(mType, u.mSelectors->Clone());
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}
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if (aDeep)
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NS_CSS_CLONE_LIST_MEMBER(nsPseudoClassList, this, mNext, result,
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(false));
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return result;
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}
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size_t
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nsPseudoClassList::SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const
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{
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size_t n = 0;
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const nsPseudoClassList* p = this;
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while (p) {
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n += aMallocSizeOf(p);
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if (!p->u.mMemory) {
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// do nothing
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} else if (nsCSSPseudoClasses::HasStringArg(p->mType)) {
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n += aMallocSizeOf(p->u.mString);
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} else if (nsCSSPseudoClasses::HasNthPairArg(p->mType)) {
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n += aMallocSizeOf(p->u.mNumbers);
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} else {
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NS_ASSERTION(nsCSSPseudoClasses::HasSelectorListArg(p->mType),
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"unexpected pseudo-class");
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n += p->u.mSelectors->SizeOfIncludingThis(aMallocSizeOf);
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}
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p = p->mNext;
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}
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return n;
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}
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nsPseudoClassList::~nsPseudoClassList(void)
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{
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MOZ_COUNT_DTOR(nsPseudoClassList);
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if (nsCSSPseudoClasses::HasSelectorListArg(mType)) {
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delete u.mSelectors;
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} else if (u.mMemory) {
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NS_Free(u.mMemory);
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}
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NS_CSS_DELETE_LIST_MEMBER(nsPseudoClassList, this, mNext);
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}
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nsAttrSelector::nsAttrSelector(int32_t aNameSpace, const nsString& aAttr)
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: mValue(),
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mNext(nullptr),
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mLowercaseAttr(nullptr),
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mCasedAttr(nullptr),
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mNameSpace(aNameSpace),
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mFunction(NS_ATTR_FUNC_SET),
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mCaseSensitive(1)
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{
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MOZ_COUNT_CTOR(nsAttrSelector);
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nsAutoString lowercase;
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nsContentUtils::ASCIIToLower(aAttr, lowercase);
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mCasedAttr = do_GetAtom(aAttr);
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mLowercaseAttr = do_GetAtom(lowercase);
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}
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nsAttrSelector::nsAttrSelector(int32_t aNameSpace, const nsString& aAttr, uint8_t aFunction,
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const nsString& aValue, bool aCaseSensitive)
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: mValue(aValue),
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mNext(nullptr),
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mLowercaseAttr(nullptr),
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mCasedAttr(nullptr),
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mNameSpace(aNameSpace),
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mFunction(aFunction),
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mCaseSensitive(aCaseSensitive)
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{
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MOZ_COUNT_CTOR(nsAttrSelector);
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nsAutoString lowercase;
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nsContentUtils::ASCIIToLower(aAttr, lowercase);
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mCasedAttr = do_GetAtom(aAttr);
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mLowercaseAttr = do_GetAtom(lowercase);
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}
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nsAttrSelector::nsAttrSelector(int32_t aNameSpace, nsIAtom* aLowercaseAttr,
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nsIAtom* aCasedAttr, uint8_t aFunction,
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const nsString& aValue, bool aCaseSensitive)
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: mValue(aValue),
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mNext(nullptr),
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mLowercaseAttr(aLowercaseAttr),
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mCasedAttr(aCasedAttr),
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mNameSpace(aNameSpace),
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mFunction(aFunction),
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mCaseSensitive(aCaseSensitive)
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{
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MOZ_COUNT_CTOR(nsAttrSelector);
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}
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nsAttrSelector*
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nsAttrSelector::Clone(bool aDeep) const
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{
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nsAttrSelector *result =
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new nsAttrSelector(mNameSpace, mLowercaseAttr, mCasedAttr,
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mFunction, mValue, mCaseSensitive);
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if (aDeep)
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NS_CSS_CLONE_LIST_MEMBER(nsAttrSelector, this, mNext, result, (false));
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return result;
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}
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nsAttrSelector::~nsAttrSelector(void)
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{
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MOZ_COUNT_DTOR(nsAttrSelector);
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NS_CSS_DELETE_LIST_MEMBER(nsAttrSelector, this, mNext);
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}
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// -- nsCSSSelector -------------------------------
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nsCSSSelector::nsCSSSelector(void)
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: mLowercaseTag(nullptr),
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mCasedTag(nullptr),
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mIDList(nullptr),
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mClassList(nullptr),
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mPseudoClassList(nullptr),
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mAttrList(nullptr),
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mNegations(nullptr),
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mNext(nullptr),
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mNameSpace(kNameSpaceID_Unknown),
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mOperator(0),
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mPseudoType(nsCSSPseudoElements::ePseudo_NotPseudoElement)
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{
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MOZ_COUNT_CTOR(nsCSSSelector);
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static_assert(nsCSSPseudoElements::ePseudo_MAX < INT16_MAX,
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"nsCSSPseudoElements::Type values overflow mPseudoType");
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}
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nsCSSSelector*
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nsCSSSelector::Clone(bool aDeepNext, bool aDeepNegations) const
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{
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nsCSSSelector *result = new nsCSSSelector();
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if (!result)
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return nullptr;
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result->mNameSpace = mNameSpace;
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result->mLowercaseTag = mLowercaseTag;
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result->mCasedTag = mCasedTag;
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result->mOperator = mOperator;
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result->mPseudoType = mPseudoType;
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NS_IF_CLONE(mIDList);
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NS_IF_CLONE(mClassList);
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NS_IF_CLONE(mPseudoClassList);
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NS_IF_CLONE(mAttrList);
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// No need to worry about multiple levels of recursion since an
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// mNegations can't have an mNext.
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NS_ASSERTION(!mNegations || !mNegations->mNext,
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"mNegations can't have non-null mNext");
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if (aDeepNegations) {
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NS_CSS_CLONE_LIST_MEMBER(nsCSSSelector, this, mNegations, result,
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(true, false));
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}
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if (aDeepNext) {
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NS_CSS_CLONE_LIST_MEMBER(nsCSSSelector, this, mNext, result,
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(false, true));
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}
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return result;
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}
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nsCSSSelector::~nsCSSSelector(void)
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{
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MOZ_COUNT_DTOR(nsCSSSelector);
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Reset();
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// No need to worry about multiple levels of recursion since an
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// mNegations can't have an mNext.
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NS_CSS_DELETE_LIST_MEMBER(nsCSSSelector, this, mNext);
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}
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void nsCSSSelector::Reset(void)
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{
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mNameSpace = kNameSpaceID_Unknown;
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mLowercaseTag = nullptr;
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mCasedTag = nullptr;
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NS_IF_DELETE(mIDList);
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NS_IF_DELETE(mClassList);
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NS_IF_DELETE(mPseudoClassList);
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NS_IF_DELETE(mAttrList);
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// No need to worry about multiple levels of recursion since an
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// mNegations can't have an mNext.
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NS_ASSERTION(!mNegations || !mNegations->mNext,
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"mNegations can't have non-null mNext");
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NS_CSS_DELETE_LIST_MEMBER(nsCSSSelector, this, mNegations);
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mOperator = char16_t(0);
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}
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void nsCSSSelector::SetNameSpace(int32_t aNameSpace)
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{
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mNameSpace = aNameSpace;
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}
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void nsCSSSelector::SetTag(const nsString& aTag)
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{
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if (aTag.IsEmpty()) {
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mLowercaseTag = mCasedTag = nullptr;
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return;
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}
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mCasedTag = do_GetAtom(aTag);
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nsAutoString lowercase;
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nsContentUtils::ASCIIToLower(aTag, lowercase);
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mLowercaseTag = do_GetAtom(lowercase);
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}
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void nsCSSSelector::AddID(const nsString& aID)
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{
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if (!aID.IsEmpty()) {
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nsAtomList** list = &mIDList;
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while (nullptr != *list) {
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list = &((*list)->mNext);
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}
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*list = new nsAtomList(aID);
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}
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}
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void nsCSSSelector::AddClass(const nsString& aClass)
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{
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if (!aClass.IsEmpty()) {
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nsAtomList** list = &mClassList;
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while (nullptr != *list) {
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list = &((*list)->mNext);
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}
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*list = new nsAtomList(aClass);
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}
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}
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void nsCSSSelector::AddPseudoClass(nsCSSPseudoClasses::Type aType)
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{
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AddPseudoClassInternal(new nsPseudoClassList(aType));
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}
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|
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void nsCSSSelector::AddPseudoClass(nsCSSPseudoClasses::Type aType,
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const char16_t* aString)
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{
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AddPseudoClassInternal(new nsPseudoClassList(aType, aString));
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}
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|
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void nsCSSSelector::AddPseudoClass(nsCSSPseudoClasses::Type aType,
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const int32_t* aIntPair)
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|
{
|
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AddPseudoClassInternal(new nsPseudoClassList(aType, aIntPair));
|
|
}
|
|
|
|
void nsCSSSelector::AddPseudoClass(nsCSSPseudoClasses::Type aType,
|
|
nsCSSSelectorList* aSelectorList)
|
|
{
|
|
// Take ownership of nsCSSSelectorList instead of copying.
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|
AddPseudoClassInternal(new nsPseudoClassList(aType, aSelectorList));
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|
}
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|
|
|
void nsCSSSelector::AddPseudoClassInternal(nsPseudoClassList *aPseudoClass)
|
|
{
|
|
nsPseudoClassList** list = &mPseudoClassList;
|
|
while (nullptr != *list) {
|
|
list = &((*list)->mNext);
|
|
}
|
|
*list = aPseudoClass;
|
|
}
|
|
|
|
void nsCSSSelector::AddAttribute(int32_t aNameSpace, const nsString& aAttr)
|
|
{
|
|
if (!aAttr.IsEmpty()) {
|
|
nsAttrSelector** list = &mAttrList;
|
|
while (nullptr != *list) {
|
|
list = &((*list)->mNext);
|
|
}
|
|
*list = new nsAttrSelector(aNameSpace, aAttr);
|
|
}
|
|
}
|
|
|
|
void nsCSSSelector::AddAttribute(int32_t aNameSpace, const nsString& aAttr, uint8_t aFunc,
|
|
const nsString& aValue, bool aCaseSensitive)
|
|
{
|
|
if (!aAttr.IsEmpty()) {
|
|
nsAttrSelector** list = &mAttrList;
|
|
while (nullptr != *list) {
|
|
list = &((*list)->mNext);
|
|
}
|
|
*list = new nsAttrSelector(aNameSpace, aAttr, aFunc, aValue, aCaseSensitive);
|
|
}
|
|
}
|
|
|
|
void nsCSSSelector::SetOperator(char16_t aOperator)
|
|
{
|
|
mOperator = aOperator;
|
|
}
|
|
|
|
int32_t nsCSSSelector::CalcWeightWithoutNegations() const
|
|
{
|
|
int32_t weight = 0;
|
|
|
|
#ifdef MOZ_XUL
|
|
MOZ_ASSERT(!(IsPseudoElement() &&
|
|
PseudoType() != nsCSSPseudoElements::ePseudo_XULTree &&
|
|
mClassList),
|
|
"If non-XUL-tree pseudo-elements can have class selectors "
|
|
"after them, specificity calculation must be updated");
|
|
#else
|
|
MOZ_ASSERT(!(IsPseudoElement() && mClassList),
|
|
"If pseudo-elements can have class selectors "
|
|
"after them, specificity calculation must be updated");
|
|
#endif
|
|
MOZ_ASSERT(!(IsPseudoElement() && (mIDList || mAttrList)),
|
|
"If pseudo-elements can have id or attribute selectors "
|
|
"after them, specificity calculation must be updated");
|
|
|
|
if (nullptr != mCasedTag) {
|
|
weight += 0x000001;
|
|
}
|
|
nsAtomList* list = mIDList;
|
|
while (nullptr != list) {
|
|
weight += 0x010000;
|
|
list = list->mNext;
|
|
}
|
|
list = mClassList;
|
|
#ifdef MOZ_XUL
|
|
// XUL tree pseudo-elements abuse mClassList to store some private
|
|
// data; ignore that.
|
|
if (PseudoType() == nsCSSPseudoElements::ePseudo_XULTree) {
|
|
list = nullptr;
|
|
}
|
|
#endif
|
|
while (nullptr != list) {
|
|
weight += 0x000100;
|
|
list = list->mNext;
|
|
}
|
|
// FIXME (bug 561154): This is incorrect for :-moz-any(), which isn't
|
|
// really a pseudo-class. In order to handle :-moz-any() correctly,
|
|
// we need to compute specificity after we match, based on which
|
|
// option we matched with (and thus also need to try the
|
|
// highest-specificity options first).
|
|
nsPseudoClassList *plist = mPseudoClassList;
|
|
while (nullptr != plist) {
|
|
weight += 0x000100;
|
|
plist = plist->mNext;
|
|
}
|
|
nsAttrSelector* attr = mAttrList;
|
|
while (nullptr != attr) {
|
|
weight += 0x000100;
|
|
attr = attr->mNext;
|
|
}
|
|
return weight;
|
|
}
|
|
|
|
int32_t nsCSSSelector::CalcWeight() const
|
|
{
|
|
// Loop over this selector and all its negations.
|
|
int32_t weight = 0;
|
|
for (const nsCSSSelector *n = this; n; n = n->mNegations) {
|
|
weight += n->CalcWeightWithoutNegations();
|
|
}
|
|
return weight;
|
|
}
|
|
|
|
//
|
|
// Builds the textual representation of a selector. Called by DOM 2 CSS
|
|
// StyleRule:selectorText
|
|
//
|
|
void
|
|
nsCSSSelector::ToString(nsAString& aString, CSSStyleSheet* aSheet,
|
|
bool aAppend) const
|
|
{
|
|
if (!aAppend)
|
|
aString.Truncate();
|
|
|
|
// selectors are linked from right-to-left, so the next selector in
|
|
// the linked list actually precedes this one in the resulting string
|
|
nsAutoTArray<const nsCSSSelector*, 8> stack;
|
|
for (const nsCSSSelector *s = this; s; s = s->mNext) {
|
|
stack.AppendElement(s);
|
|
}
|
|
|
|
while (!stack.IsEmpty()) {
|
|
uint32_t index = stack.Length() - 1;
|
|
const nsCSSSelector *s = stack.ElementAt(index);
|
|
stack.RemoveElementAt(index);
|
|
|
|
s->AppendToStringWithoutCombinators(aString, aSheet);
|
|
|
|
// Append the combinator, if needed.
|
|
if (!stack.IsEmpty()) {
|
|
const nsCSSSelector *next = stack.ElementAt(index - 1);
|
|
char16_t oper = s->mOperator;
|
|
if (next->IsPseudoElement()) {
|
|
NS_ASSERTION(oper == char16_t(':'),
|
|
"improperly chained pseudo element");
|
|
} else {
|
|
NS_ASSERTION(oper != char16_t(0),
|
|
"compound selector without combinator");
|
|
|
|
aString.Append(char16_t(' '));
|
|
if (oper != char16_t(' ')) {
|
|
aString.Append(oper);
|
|
aString.Append(char16_t(' '));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
nsCSSSelector::AppendToStringWithoutCombinators
|
|
(nsAString& aString, CSSStyleSheet* aSheet) const
|
|
{
|
|
AppendToStringWithoutCombinatorsOrNegations(aString, aSheet, false);
|
|
|
|
for (const nsCSSSelector* negation = mNegations; negation;
|
|
negation = negation->mNegations) {
|
|
aString.AppendLiteral(":not(");
|
|
negation->AppendToStringWithoutCombinatorsOrNegations(aString, aSheet,
|
|
true);
|
|
aString.Append(char16_t(')'));
|
|
}
|
|
}
|
|
|
|
void
|
|
nsCSSSelector::AppendToStringWithoutCombinatorsOrNegations
|
|
(nsAString& aString, CSSStyleSheet* aSheet,
|
|
bool aIsNegated) const
|
|
{
|
|
nsAutoString temp;
|
|
bool isPseudoElement = IsPseudoElement();
|
|
|
|
// For non-pseudo-element selectors or for lone pseudo-elements, deal with
|
|
// namespace prefixes.
|
|
bool wroteNamespace = false;
|
|
if (!isPseudoElement || !mNext) {
|
|
// append the namespace prefix if needed
|
|
nsXMLNameSpaceMap *sheetNS = aSheet ? aSheet->GetNameSpaceMap() : nullptr;
|
|
|
|
// sheetNS is non-null if and only if we had an @namespace rule. If it's
|
|
// null, that means that the only namespaces we could have are the
|
|
// wildcard namespace (which can be implicit in this case) and the "none"
|
|
// namespace, which then needs to be explicitly specified.
|
|
if (!sheetNS) {
|
|
NS_ASSERTION(mNameSpace == kNameSpaceID_Unknown ||
|
|
mNameSpace == kNameSpaceID_None,
|
|
"How did we get this namespace?");
|
|
if (mNameSpace == kNameSpaceID_None) {
|
|
aString.Append(char16_t('|'));
|
|
wroteNamespace = true;
|
|
}
|
|
} else if (sheetNS->FindNameSpaceID(nullptr) == mNameSpace) {
|
|
// We have the default namespace (possibly including the wildcard
|
|
// namespace). Do nothing.
|
|
NS_ASSERTION(mNameSpace == kNameSpaceID_Unknown ||
|
|
CanBeNamespaced(aIsNegated),
|
|
"How did we end up with this namespace?");
|
|
} else if (mNameSpace == kNameSpaceID_None) {
|
|
NS_ASSERTION(CanBeNamespaced(aIsNegated),
|
|
"How did we end up with this namespace?");
|
|
aString.Append(char16_t('|'));
|
|
wroteNamespace = true;
|
|
} else if (mNameSpace != kNameSpaceID_Unknown) {
|
|
NS_ASSERTION(CanBeNamespaced(aIsNegated),
|
|
"How did we end up with this namespace?");
|
|
nsIAtom *prefixAtom = sheetNS->FindPrefix(mNameSpace);
|
|
NS_ASSERTION(prefixAtom, "how'd we get a non-default namespace "
|
|
"without a prefix?");
|
|
nsStyleUtil::AppendEscapedCSSIdent(nsDependentAtomString(prefixAtom),
|
|
aString);
|
|
aString.Append(char16_t('|'));
|
|
wroteNamespace = true;
|
|
} else {
|
|
// A selector for an element in any namespace, while the default
|
|
// namespace is something else. :not() is special in that the default
|
|
// namespace is not implied for non-type selectors, so if this is a
|
|
// negated non-type selector we don't need to output an explicit wildcard
|
|
// namespace here, since those default to a wildcard namespace.
|
|
if (CanBeNamespaced(aIsNegated)) {
|
|
aString.AppendLiteral("*|");
|
|
wroteNamespace = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!mLowercaseTag) {
|
|
// Universal selector: avoid writing the universal selector when we
|
|
// can avoid it, especially since we're required to avoid it for the
|
|
// inside of :not()
|
|
if (wroteNamespace ||
|
|
(!mIDList && !mClassList && !mPseudoClassList && !mAttrList &&
|
|
(aIsNegated || !mNegations))) {
|
|
aString.Append(char16_t('*'));
|
|
}
|
|
} else {
|
|
// Append the tag name
|
|
nsAutoString tag;
|
|
(isPseudoElement ? mLowercaseTag : mCasedTag)->ToString(tag);
|
|
if (isPseudoElement) {
|
|
if (!mNext) {
|
|
// Lone pseudo-element selector -- toss in a wildcard type selector
|
|
// XXXldb Why?
|
|
aString.Append(char16_t('*'));
|
|
}
|
|
// While our atoms use one colon, most pseudo-elements require two
|
|
// colons (those not in CSS level 2) and all pseudo-elements allow
|
|
// two colons. So serialize to the non-deprecated two colon syntax.
|
|
aString.Append(char16_t(':'));
|
|
// This should not be escaped since (a) the pseudo-element string
|
|
// has a ":" that can't be escaped and (b) all pseudo-elements at
|
|
// this point are known, and therefore we know they don't need
|
|
// escaping.
|
|
aString.Append(tag);
|
|
} else {
|
|
nsStyleUtil::AppendEscapedCSSIdent(tag, aString);
|
|
}
|
|
}
|
|
|
|
// Append the id, if there is one
|
|
if (mIDList) {
|
|
nsAtomList* list = mIDList;
|
|
while (list != nullptr) {
|
|
list->mAtom->ToString(temp);
|
|
aString.Append(char16_t('#'));
|
|
nsStyleUtil::AppendEscapedCSSIdent(temp, aString);
|
|
list = list->mNext;
|
|
}
|
|
}
|
|
|
|
// Append each class in the linked list
|
|
if (mClassList) {
|
|
if (isPseudoElement) {
|
|
#ifdef MOZ_XUL
|
|
MOZ_ASSERT(nsCSSAnonBoxes::IsTreePseudoElement(mLowercaseTag),
|
|
"must be tree pseudo-element");
|
|
|
|
aString.Append(char16_t('('));
|
|
for (nsAtomList* list = mClassList; list; list = list->mNext) {
|
|
nsStyleUtil::AppendEscapedCSSIdent(nsDependentAtomString(list->mAtom), aString);
|
|
aString.Append(char16_t(','));
|
|
}
|
|
// replace the final comma with a close-paren
|
|
aString.Replace(aString.Length() - 1, 1, char16_t(')'));
|
|
#else
|
|
NS_ERROR("Can't happen");
|
|
#endif
|
|
} else {
|
|
nsAtomList* list = mClassList;
|
|
while (list != nullptr) {
|
|
list->mAtom->ToString(temp);
|
|
aString.Append(char16_t('.'));
|
|
nsStyleUtil::AppendEscapedCSSIdent(temp, aString);
|
|
list = list->mNext;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Append each attribute selector in the linked list
|
|
if (mAttrList) {
|
|
nsAttrSelector* list = mAttrList;
|
|
while (list != nullptr) {
|
|
aString.Append(char16_t('['));
|
|
// Append the namespace prefix
|
|
if (list->mNameSpace == kNameSpaceID_Unknown) {
|
|
aString.Append(char16_t('*'));
|
|
aString.Append(char16_t('|'));
|
|
} else if (list->mNameSpace != kNameSpaceID_None) {
|
|
if (aSheet) {
|
|
nsXMLNameSpaceMap *sheetNS = aSheet->GetNameSpaceMap();
|
|
nsIAtom *prefixAtom = sheetNS->FindPrefix(list->mNameSpace);
|
|
// Default namespaces don't apply to attribute selectors, so
|
|
// we must have a useful prefix.
|
|
NS_ASSERTION(prefixAtom,
|
|
"How did we end up with a namespace if the prefix "
|
|
"is unknown?");
|
|
nsAutoString prefix;
|
|
prefixAtom->ToString(prefix);
|
|
nsStyleUtil::AppendEscapedCSSIdent(prefix, aString);
|
|
aString.Append(char16_t('|'));
|
|
}
|
|
}
|
|
// Append the attribute name
|
|
list->mCasedAttr->ToString(temp);
|
|
nsStyleUtil::AppendEscapedCSSIdent(temp, aString);
|
|
|
|
if (list->mFunction != NS_ATTR_FUNC_SET) {
|
|
// Append the function
|
|
if (list->mFunction == NS_ATTR_FUNC_INCLUDES)
|
|
aString.Append(char16_t('~'));
|
|
else if (list->mFunction == NS_ATTR_FUNC_DASHMATCH)
|
|
aString.Append(char16_t('|'));
|
|
else if (list->mFunction == NS_ATTR_FUNC_BEGINSMATCH)
|
|
aString.Append(char16_t('^'));
|
|
else if (list->mFunction == NS_ATTR_FUNC_ENDSMATCH)
|
|
aString.Append(char16_t('$'));
|
|
else if (list->mFunction == NS_ATTR_FUNC_CONTAINSMATCH)
|
|
aString.Append(char16_t('*'));
|
|
|
|
aString.Append(char16_t('='));
|
|
|
|
// Append the value
|
|
nsStyleUtil::AppendEscapedCSSString(list->mValue, aString);
|
|
}
|
|
|
|
aString.Append(char16_t(']'));
|
|
|
|
list = list->mNext;
|
|
}
|
|
}
|
|
|
|
// Append each pseudo-class in the linked list
|
|
for (nsPseudoClassList* list = mPseudoClassList; list; list = list->mNext) {
|
|
nsCSSPseudoClasses::PseudoTypeToString(list->mType, temp);
|
|
// This should not be escaped since (a) the pseudo-class string
|
|
// has a ":" that can't be escaped and (b) all pseudo-classes at
|
|
// this point are known, and therefore we know they don't need
|
|
// escaping.
|
|
aString.Append(temp);
|
|
if (list->u.mMemory) {
|
|
aString.Append(char16_t('('));
|
|
if (nsCSSPseudoClasses::HasStringArg(list->mType)) {
|
|
nsStyleUtil::AppendEscapedCSSIdent(
|
|
nsDependentString(list->u.mString), aString);
|
|
} else if (nsCSSPseudoClasses::HasNthPairArg(list->mType)) {
|
|
int32_t a = list->u.mNumbers[0],
|
|
b = list->u.mNumbers[1];
|
|
temp.Truncate();
|
|
if (a != 0) {
|
|
if (a == -1) {
|
|
temp.Append(char16_t('-'));
|
|
} else if (a != 1) {
|
|
temp.AppendInt(a);
|
|
}
|
|
temp.Append(char16_t('n'));
|
|
}
|
|
if (b != 0 || a == 0) {
|
|
if (b >= 0 && a != 0) // check a != 0 for whether we printed above
|
|
temp.Append(char16_t('+'));
|
|
temp.AppendInt(b);
|
|
}
|
|
aString.Append(temp);
|
|
} else {
|
|
NS_ASSERTION(nsCSSPseudoClasses::HasSelectorListArg(list->mType),
|
|
"unexpected pseudo-class");
|
|
nsString tmp;
|
|
list->u.mSelectors->ToString(tmp, aSheet);
|
|
aString.Append(tmp);
|
|
}
|
|
aString.Append(char16_t(')'));
|
|
}
|
|
}
|
|
}
|
|
|
|
bool
|
|
nsCSSSelector::CanBeNamespaced(bool aIsNegated) const
|
|
{
|
|
return !aIsNegated ||
|
|
(!mIDList && !mClassList && !mPseudoClassList && !mAttrList);
|
|
}
|
|
|
|
size_t
|
|
nsCSSSelector::SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const
|
|
{
|
|
size_t n = 0;
|
|
const nsCSSSelector* s = this;
|
|
while (s) {
|
|
n += aMallocSizeOf(s);
|
|
|
|
#define MEASURE(x) n += x ? x->SizeOfIncludingThis(aMallocSizeOf) : 0;
|
|
|
|
MEASURE(s->mIDList);
|
|
MEASURE(s->mClassList);
|
|
MEASURE(s->mPseudoClassList);
|
|
MEASURE(s->mNegations);
|
|
|
|
// Measurement of the following members may be added later if DMD finds it is
|
|
// worthwhile:
|
|
// - s->mAttrList
|
|
//
|
|
// The following members aren't measured:
|
|
// - s->mLowercaseTag, because it's an atom and therefore shared
|
|
// - s->mCasedTag, because it's an atom and therefore shared
|
|
|
|
s = s->mNext;
|
|
}
|
|
return n;
|
|
}
|
|
|
|
// -- nsCSSSelectorList -------------------------------
|
|
|
|
nsCSSSelectorList::nsCSSSelectorList(void)
|
|
: mSelectors(nullptr),
|
|
mWeight(0),
|
|
mNext(nullptr)
|
|
{
|
|
MOZ_COUNT_CTOR(nsCSSSelectorList);
|
|
}
|
|
|
|
nsCSSSelectorList::~nsCSSSelectorList()
|
|
{
|
|
MOZ_COUNT_DTOR(nsCSSSelectorList);
|
|
delete mSelectors;
|
|
NS_CSS_DELETE_LIST_MEMBER(nsCSSSelectorList, this, mNext);
|
|
}
|
|
|
|
nsCSSSelector*
|
|
nsCSSSelectorList::AddSelector(char16_t aOperator)
|
|
{
|
|
nsCSSSelector* newSel = new nsCSSSelector();
|
|
|
|
if (mSelectors) {
|
|
NS_ASSERTION(aOperator != char16_t(0), "chaining without combinator");
|
|
mSelectors->SetOperator(aOperator);
|
|
} else {
|
|
NS_ASSERTION(aOperator == char16_t(0), "combinator without chaining");
|
|
}
|
|
|
|
newSel->mNext = mSelectors;
|
|
mSelectors = newSel;
|
|
return newSel;
|
|
}
|
|
|
|
void
|
|
nsCSSSelectorList::RemoveRightmostSelector()
|
|
{
|
|
nsCSSSelector* current = mSelectors;
|
|
mSelectors = mSelectors->mNext;
|
|
MOZ_ASSERT(mSelectors,
|
|
"Rightmost selector has been removed, but now "
|
|
"mSelectors is null");
|
|
mSelectors->SetOperator(char16_t(0));
|
|
|
|
// Make sure that deleting current won't delete the whole list.
|
|
current->mNext = nullptr;
|
|
delete current;
|
|
}
|
|
|
|
void
|
|
nsCSSSelectorList::ToString(nsAString& aResult, CSSStyleSheet* aSheet)
|
|
{
|
|
aResult.Truncate();
|
|
nsCSSSelectorList *p = this;
|
|
for (;;) {
|
|
p->mSelectors->ToString(aResult, aSheet, true);
|
|
p = p->mNext;
|
|
if (!p)
|
|
break;
|
|
aResult.AppendLiteral(", ");
|
|
}
|
|
}
|
|
|
|
nsCSSSelectorList*
|
|
nsCSSSelectorList::Clone(bool aDeep) const
|
|
{
|
|
nsCSSSelectorList *result = new nsCSSSelectorList();
|
|
result->mWeight = mWeight;
|
|
NS_IF_CLONE(mSelectors);
|
|
|
|
if (aDeep) {
|
|
NS_CSS_CLONE_LIST_MEMBER(nsCSSSelectorList, this, mNext, result,
|
|
(false));
|
|
}
|
|
return result;
|
|
}
|
|
|
|
size_t
|
|
nsCSSSelectorList::SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const
|
|
{
|
|
size_t n = 0;
|
|
const nsCSSSelectorList* s = this;
|
|
while (s) {
|
|
n += aMallocSizeOf(s);
|
|
n += s->mSelectors ? s->mSelectors->SizeOfIncludingThis(aMallocSizeOf) : 0;
|
|
s = s->mNext;
|
|
}
|
|
return n;
|
|
}
|
|
|
|
// -- ImportantRule ----------------------------------
|
|
|
|
namespace mozilla {
|
|
namespace css {
|
|
|
|
ImportantRule::ImportantRule(Declaration* aDeclaration)
|
|
: mDeclaration(aDeclaration)
|
|
{
|
|
}
|
|
|
|
ImportantRule::~ImportantRule()
|
|
{
|
|
}
|
|
|
|
NS_IMPL_ISUPPORTS(ImportantRule, nsIStyleRule)
|
|
|
|
/* virtual */ void
|
|
ImportantRule::MapRuleInfoInto(nsRuleData* aRuleData)
|
|
{
|
|
mDeclaration->MapImportantRuleInfoInto(aRuleData);
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
/* virtual */ void
|
|
ImportantRule::List(FILE* out, int32_t aIndent) const
|
|
{
|
|
// Indent
|
|
nsAutoCString str;
|
|
for (int32_t index = aIndent; --index >= 0; ) {
|
|
str.AppendLiteral(" ");
|
|
}
|
|
|
|
str.AppendLiteral("! important rule\n");
|
|
fprintf_stderr(out, "%s", str.get());
|
|
}
|
|
#endif
|
|
|
|
} // namespace css
|
|
} // namespace mozilla
|
|
|
|
// --------------------------------------------------------
|
|
|
|
namespace mozilla {
|
|
namespace css {
|
|
class DOMCSSStyleRule;
|
|
}
|
|
}
|
|
|
|
class DOMCSSDeclarationImpl : public nsDOMCSSDeclaration
|
|
{
|
|
protected:
|
|
virtual ~DOMCSSDeclarationImpl(void);
|
|
|
|
public:
|
|
explicit DOMCSSDeclarationImpl(css::StyleRule *aRule);
|
|
|
|
NS_IMETHOD GetParentRule(nsIDOMCSSRule **aParent) override;
|
|
void DropReference(void);
|
|
virtual css::Declaration* GetCSSDeclaration(bool aAllocate) override;
|
|
virtual nsresult SetCSSDeclaration(css::Declaration* aDecl) override;
|
|
virtual void GetCSSParsingEnvironment(CSSParsingEnvironment& aCSSParseEnv) override;
|
|
virtual nsIDocument* DocToUpdate() override;
|
|
|
|
// Override |AddRef| and |Release| for being a member of
|
|
// |DOMCSSStyleRule|. Also, we need to forward QI for cycle
|
|
// collection things to DOMCSSStyleRule.
|
|
NS_DECL_ISUPPORTS_INHERITED
|
|
|
|
virtual nsINode *GetParentObject() override
|
|
{
|
|
return mRule ? mRule->GetDocument() : nullptr;
|
|
}
|
|
|
|
friend class css::DOMCSSStyleRule;
|
|
|
|
protected:
|
|
// This reference is not reference-counted. The rule object tells us
|
|
// when it's about to go away.
|
|
css::StyleRule *mRule;
|
|
|
|
inline css::DOMCSSStyleRule* DomRule();
|
|
|
|
private:
|
|
// NOT TO BE IMPLEMENTED
|
|
// This object cannot be allocated on its own. It must be a member of
|
|
// DOMCSSStyleRule.
|
|
void* operator new(size_t size) CPP_THROW_NEW;
|
|
};
|
|
|
|
namespace mozilla {
|
|
namespace css {
|
|
|
|
class DOMCSSStyleRule : public nsICSSStyleRuleDOMWrapper
|
|
{
|
|
public:
|
|
explicit DOMCSSStyleRule(StyleRule *aRule);
|
|
|
|
NS_DECL_CYCLE_COLLECTING_ISUPPORTS
|
|
NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(DOMCSSStyleRule)
|
|
NS_DECL_NSIDOMCSSRULE
|
|
NS_DECL_NSIDOMCSSSTYLERULE
|
|
|
|
// nsICSSStyleRuleDOMWrapper
|
|
NS_IMETHOD GetCSSStyleRule(StyleRule **aResult) override;
|
|
|
|
DOMCSSDeclarationImpl* DOMDeclaration() { return &mDOMDeclaration; }
|
|
|
|
friend class ::DOMCSSDeclarationImpl;
|
|
|
|
protected:
|
|
virtual ~DOMCSSStyleRule();
|
|
|
|
DOMCSSDeclarationImpl mDOMDeclaration;
|
|
|
|
StyleRule* Rule() {
|
|
return mDOMDeclaration.mRule;
|
|
}
|
|
};
|
|
|
|
} // namespace css
|
|
} // namespace mozilla
|
|
|
|
DOMCSSDeclarationImpl::DOMCSSDeclarationImpl(css::StyleRule *aRule)
|
|
: mRule(aRule)
|
|
{
|
|
MOZ_COUNT_CTOR(DOMCSSDeclarationImpl);
|
|
}
|
|
|
|
DOMCSSDeclarationImpl::~DOMCSSDeclarationImpl(void)
|
|
{
|
|
NS_ASSERTION(!mRule, "DropReference not called.");
|
|
|
|
MOZ_COUNT_DTOR(DOMCSSDeclarationImpl);
|
|
}
|
|
|
|
inline css::DOMCSSStyleRule* DOMCSSDeclarationImpl::DomRule()
|
|
{
|
|
return reinterpret_cast<css::DOMCSSStyleRule*>
|
|
(reinterpret_cast<char*>(this) -
|
|
offsetof(css::DOMCSSStyleRule, mDOMDeclaration));
|
|
}
|
|
|
|
NS_IMPL_ADDREF_USING_AGGREGATOR(DOMCSSDeclarationImpl, DomRule())
|
|
NS_IMPL_RELEASE_USING_AGGREGATOR(DOMCSSDeclarationImpl, DomRule())
|
|
|
|
NS_INTERFACE_MAP_BEGIN(DOMCSSDeclarationImpl)
|
|
NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
|
|
// We forward the cycle collection interfaces to DomRule(), which is
|
|
// never null (in fact, we're part of that object!)
|
|
if (aIID.Equals(NS_GET_IID(nsCycleCollectionISupports)) ||
|
|
aIID.Equals(NS_GET_IID(nsXPCOMCycleCollectionParticipant))) {
|
|
return DomRule()->QueryInterface(aIID, aInstancePtr);
|
|
}
|
|
else
|
|
NS_IMPL_QUERY_TAIL_INHERITING(nsDOMCSSDeclaration)
|
|
|
|
void
|
|
DOMCSSDeclarationImpl::DropReference(void)
|
|
{
|
|
mRule = nullptr;
|
|
}
|
|
|
|
css::Declaration*
|
|
DOMCSSDeclarationImpl::GetCSSDeclaration(bool aAllocate)
|
|
{
|
|
if (mRule) {
|
|
return mRule->GetDeclaration();
|
|
} else {
|
|
return nullptr;
|
|
}
|
|
}
|
|
|
|
void
|
|
DOMCSSDeclarationImpl::GetCSSParsingEnvironment(CSSParsingEnvironment& aCSSParseEnv)
|
|
{
|
|
GetCSSParsingEnvironmentForRule(mRule, aCSSParseEnv);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
DOMCSSDeclarationImpl::GetParentRule(nsIDOMCSSRule **aParent)
|
|
{
|
|
NS_ENSURE_ARG_POINTER(aParent);
|
|
|
|
if (!mRule) {
|
|
*aParent = nullptr;
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IF_ADDREF(*aParent = mRule->GetDOMRule());
|
|
return NS_OK;
|
|
}
|
|
|
|
nsresult
|
|
DOMCSSDeclarationImpl::SetCSSDeclaration(css::Declaration* aDecl)
|
|
{
|
|
NS_PRECONDITION(mRule,
|
|
"can only be called when |GetCSSDeclaration| returned a declaration");
|
|
|
|
nsCOMPtr<nsIDocument> owningDoc;
|
|
nsCOMPtr<nsIStyleSheet> sheet = mRule->GetStyleSheet();
|
|
if (sheet) {
|
|
owningDoc = sheet->GetOwningDocument();
|
|
}
|
|
|
|
mozAutoDocUpdate updateBatch(owningDoc, UPDATE_STYLE, true);
|
|
|
|
nsRefPtr<css::StyleRule> oldRule = mRule;
|
|
mRule = oldRule->DeclarationChanged(aDecl, true).take();
|
|
if (!mRule)
|
|
return NS_ERROR_OUT_OF_MEMORY;
|
|
nsrefcnt cnt = mRule->Release();
|
|
if (cnt == 0) {
|
|
NS_NOTREACHED("container didn't take ownership");
|
|
mRule = nullptr;
|
|
return NS_ERROR_UNEXPECTED;
|
|
}
|
|
|
|
if (owningDoc) {
|
|
owningDoc->StyleRuleChanged(sheet, oldRule, mRule);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
nsIDocument*
|
|
DOMCSSDeclarationImpl::DocToUpdate()
|
|
{
|
|
return nullptr;
|
|
}
|
|
|
|
namespace mozilla {
|
|
namespace css {
|
|
|
|
DOMCSSStyleRule::DOMCSSStyleRule(StyleRule* aRule)
|
|
: mDOMDeclaration(aRule)
|
|
{
|
|
}
|
|
|
|
DOMCSSStyleRule::~DOMCSSStyleRule()
|
|
{
|
|
}
|
|
|
|
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(DOMCSSStyleRule)
|
|
NS_INTERFACE_MAP_ENTRY(nsICSSStyleRuleDOMWrapper)
|
|
NS_INTERFACE_MAP_ENTRY(nsIDOMCSSStyleRule)
|
|
NS_INTERFACE_MAP_ENTRY(nsIDOMCSSRule)
|
|
NS_INTERFACE_MAP_ENTRY(nsISupports)
|
|
NS_DOM_INTERFACE_MAP_ENTRY_CLASSINFO(CSSStyleRule)
|
|
NS_INTERFACE_MAP_END
|
|
|
|
NS_IMPL_CYCLE_COLLECTING_ADDREF(DOMCSSStyleRule)
|
|
NS_IMPL_CYCLE_COLLECTING_RELEASE(DOMCSSStyleRule)
|
|
|
|
NS_IMPL_CYCLE_COLLECTION_CLASS(DOMCSSStyleRule)
|
|
|
|
NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN(DOMCSSStyleRule)
|
|
// Trace the wrapper for our declaration. This just expands out
|
|
// NS_IMPL_CYCLE_COLLECTION_TRACE_PRESERVED_WRAPPER which we can't use
|
|
// directly because the wrapper is on the declaration, not on us.
|
|
tmp->DOMDeclaration()->TraceWrapper(aCallbacks, aClosure);
|
|
NS_IMPL_CYCLE_COLLECTION_TRACE_END
|
|
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(DOMCSSStyleRule)
|
|
// Unlink the wrapper for our declaraton. This just expands out
|
|
// NS_IMPL_CYCLE_COLLECTION_UNLINK_PRESERVED_WRAPPER which we can't use
|
|
// directly because the wrapper is on the declaration, not on us.
|
|
tmp->DOMDeclaration()->ReleaseWrapper(static_cast<nsISupports*>(p));
|
|
NS_IMPL_CYCLE_COLLECTION_UNLINK_END
|
|
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(DOMCSSStyleRule)
|
|
// Just NS_IMPL_CYCLE_COLLECTION_TRAVERSE_SCRIPT_OBJECTS here: that will call
|
|
// into our Trace hook, where we do the right thing with declarations
|
|
// already.
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_SCRIPT_OBJECTS
|
|
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
|
|
|
|
NS_IMETHODIMP
|
|
DOMCSSStyleRule::GetType(uint16_t* aType)
|
|
{
|
|
*aType = nsIDOMCSSRule::STYLE_RULE;
|
|
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
DOMCSSStyleRule::GetCssText(nsAString& aCssText)
|
|
{
|
|
if (!Rule()) {
|
|
aCssText.Truncate();
|
|
} else {
|
|
Rule()->GetCssText(aCssText);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
DOMCSSStyleRule::SetCssText(const nsAString& aCssText)
|
|
{
|
|
if (Rule()) {
|
|
Rule()->SetCssText(aCssText);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
DOMCSSStyleRule::GetParentStyleSheet(nsIDOMCSSStyleSheet** aSheet)
|
|
{
|
|
if (!Rule()) {
|
|
*aSheet = nullptr;
|
|
return NS_OK;
|
|
}
|
|
return Rule()->GetParentStyleSheet(aSheet);
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
DOMCSSStyleRule::GetParentRule(nsIDOMCSSRule** aParentRule)
|
|
{
|
|
if (!Rule()) {
|
|
*aParentRule = nullptr;
|
|
return NS_OK;
|
|
}
|
|
return Rule()->GetParentRule(aParentRule);
|
|
}
|
|
|
|
css::Rule*
|
|
DOMCSSStyleRule::GetCSSRule()
|
|
{
|
|
return Rule();
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
DOMCSSStyleRule::GetSelectorText(nsAString& aSelectorText)
|
|
{
|
|
if (!Rule()) {
|
|
aSelectorText.Truncate();
|
|
} else {
|
|
Rule()->GetSelectorText(aSelectorText);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
DOMCSSStyleRule::SetSelectorText(const nsAString& aSelectorText)
|
|
{
|
|
if (Rule()) {
|
|
Rule()->SetSelectorText(aSelectorText);
|
|
}
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
DOMCSSStyleRule::GetStyle(nsIDOMCSSStyleDeclaration** aStyle)
|
|
{
|
|
*aStyle = &mDOMDeclaration;
|
|
NS_ADDREF(*aStyle);
|
|
return NS_OK;
|
|
}
|
|
|
|
NS_IMETHODIMP
|
|
DOMCSSStyleRule::GetCSSStyleRule(StyleRule **aResult)
|
|
{
|
|
*aResult = Rule();
|
|
NS_IF_ADDREF(*aResult);
|
|
return NS_OK;
|
|
}
|
|
|
|
} // namespace css
|
|
} // namespace mozilla
|
|
|
|
// -- StyleRule ------------------------------------
|
|
|
|
namespace mozilla {
|
|
namespace css {
|
|
|
|
StyleRule::StyleRule(nsCSSSelectorList* aSelector,
|
|
Declaration* aDeclaration,
|
|
uint32_t aLineNumber,
|
|
uint32_t aColumnNumber)
|
|
: Rule(aLineNumber, aColumnNumber),
|
|
mSelector(aSelector),
|
|
mDeclaration(aDeclaration)
|
|
{
|
|
NS_PRECONDITION(aDeclaration, "must have a declaration");
|
|
}
|
|
|
|
// for |Clone|
|
|
StyleRule::StyleRule(const StyleRule& aCopy)
|
|
: Rule(aCopy),
|
|
mSelector(aCopy.mSelector ? aCopy.mSelector->Clone() : nullptr),
|
|
mDeclaration(new Declaration(*aCopy.mDeclaration))
|
|
{
|
|
// rest is constructed lazily on existing data
|
|
}
|
|
|
|
// for |SetCSSDeclaration|
|
|
StyleRule::StyleRule(StyleRule& aCopy,
|
|
Declaration* aDeclaration)
|
|
: Rule(aCopy),
|
|
mSelector(aCopy.mSelector),
|
|
mDeclaration(aDeclaration),
|
|
mDOMRule(aCopy.mDOMRule.forget())
|
|
{
|
|
// The DOM rule is replacing |aCopy| with |this|, so transfer
|
|
// the reverse pointer as well (and transfer ownership).
|
|
|
|
// Similarly for the selector.
|
|
aCopy.mSelector = nullptr;
|
|
|
|
// We are probably replacing the old declaration with |aDeclaration|
|
|
// instead of taking ownership of the old declaration; only null out
|
|
// aCopy.mDeclaration if we are taking ownership.
|
|
if (mDeclaration == aCopy.mDeclaration) {
|
|
// This should only ever happen if the declaration was modifiable.
|
|
mDeclaration->AssertMutable();
|
|
aCopy.mDeclaration = nullptr;
|
|
}
|
|
}
|
|
|
|
StyleRule::~StyleRule()
|
|
{
|
|
delete mSelector;
|
|
delete mDeclaration;
|
|
if (mDOMRule) {
|
|
mDOMRule->DOMDeclaration()->DropReference();
|
|
}
|
|
}
|
|
|
|
// QueryInterface implementation for StyleRule
|
|
NS_INTERFACE_MAP_BEGIN(StyleRule)
|
|
if (aIID.Equals(NS_GET_IID(mozilla::css::StyleRule))) {
|
|
*aInstancePtr = this;
|
|
NS_ADDREF_THIS();
|
|
return NS_OK;
|
|
}
|
|
else
|
|
NS_INTERFACE_MAP_ENTRY(nsIStyleRule)
|
|
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIStyleRule)
|
|
NS_INTERFACE_MAP_END
|
|
|
|
NS_IMPL_ADDREF(StyleRule)
|
|
NS_IMPL_RELEASE(StyleRule)
|
|
|
|
void
|
|
StyleRule::RuleMatched()
|
|
{
|
|
if (!mWasMatched) {
|
|
MOZ_ASSERT(!mImportantRule, "should not have important rule yet");
|
|
|
|
mWasMatched = true;
|
|
mDeclaration->SetImmutable();
|
|
if (mDeclaration->HasImportantData()) {
|
|
mImportantRule = new ImportantRule(mDeclaration);
|
|
}
|
|
}
|
|
}
|
|
|
|
/* virtual */ int32_t
|
|
StyleRule::GetType() const
|
|
{
|
|
return Rule::STYLE_RULE;
|
|
}
|
|
|
|
/* virtual */ already_AddRefed<Rule>
|
|
StyleRule::Clone() const
|
|
{
|
|
nsRefPtr<Rule> clone = new StyleRule(*this);
|
|
return clone.forget();
|
|
}
|
|
|
|
/* virtual */ nsIDOMCSSRule*
|
|
StyleRule::GetDOMRule()
|
|
{
|
|
if (!mDOMRule) {
|
|
if (!GetStyleSheet()) {
|
|
// Inline style rules aren't supposed to have a DOM rule object, only
|
|
// a declaration. But if we do have one already, from a style sheet
|
|
// rule that used to be in a document, we still want to return it.
|
|
return nullptr;
|
|
}
|
|
mDOMRule = new DOMCSSStyleRule(this);
|
|
}
|
|
return mDOMRule;
|
|
}
|
|
|
|
/* virtual */ nsIDOMCSSRule*
|
|
StyleRule::GetExistingDOMRule()
|
|
{
|
|
return mDOMRule;
|
|
}
|
|
|
|
/* virtual */ already_AddRefed<StyleRule>
|
|
StyleRule::DeclarationChanged(Declaration* aDecl,
|
|
bool aHandleContainer)
|
|
{
|
|
nsRefPtr<StyleRule> clone = new StyleRule(*this, aDecl);
|
|
|
|
if (aHandleContainer) {
|
|
CSSStyleSheet* sheet = GetStyleSheet();
|
|
if (mParentRule) {
|
|
if (sheet) {
|
|
sheet->ReplaceRuleInGroup(mParentRule, this, clone);
|
|
} else {
|
|
mParentRule->ReplaceStyleRule(this, clone);
|
|
}
|
|
} else if (sheet) {
|
|
sheet->ReplaceStyleRule(this, clone);
|
|
}
|
|
}
|
|
|
|
return clone.forget();
|
|
}
|
|
|
|
/* virtual */ void
|
|
StyleRule::MapRuleInfoInto(nsRuleData* aRuleData)
|
|
{
|
|
MOZ_ASSERT(mWasMatched,
|
|
"somebody forgot to call css::StyleRule::RuleMatched");
|
|
mDeclaration->MapNormalRuleInfoInto(aRuleData);
|
|
}
|
|
|
|
#ifdef DEBUG
|
|
/* virtual */ void
|
|
StyleRule::List(FILE* out, int32_t aIndent) const
|
|
{
|
|
nsAutoCString str;
|
|
// Indent
|
|
for (int32_t index = aIndent; --index >= 0; ) {
|
|
str.AppendLiteral(" ");
|
|
}
|
|
|
|
if (mSelector) {
|
|
nsAutoString buffer;
|
|
mSelector->ToString(buffer, GetStyleSheet());
|
|
AppendUTF16toUTF8(buffer, str);
|
|
str.Append(' ');
|
|
}
|
|
|
|
if (nullptr != mDeclaration) {
|
|
nsAutoString buffer;
|
|
str.AppendLiteral("{ ");
|
|
mDeclaration->ToString(buffer);
|
|
AppendUTF16toUTF8(buffer, str);
|
|
str.Append('}');
|
|
CSSStyleSheet* sheet = GetStyleSheet();
|
|
if (sheet) {
|
|
nsIURI* uri = sheet->GetSheetURI();
|
|
if (uri) {
|
|
nsAutoCString uristr;
|
|
str.Append(" /* ");
|
|
uri->GetSpec(uristr);
|
|
str.Append(uristr);
|
|
str.Append(':');
|
|
str.AppendInt(mLineNumber);
|
|
str.Append(" */");
|
|
}
|
|
}
|
|
}
|
|
else {
|
|
str.AppendLiteral("{ null declaration }");
|
|
}
|
|
str.Append('\n');
|
|
fprintf_stderr(out, "%s", str.get());
|
|
}
|
|
#endif
|
|
|
|
void
|
|
StyleRule::GetCssText(nsAString& aCssText)
|
|
{
|
|
if (mSelector) {
|
|
mSelector->ToString(aCssText, GetStyleSheet());
|
|
aCssText.Append(char16_t(' '));
|
|
}
|
|
aCssText.Append(char16_t('{'));
|
|
aCssText.Append(char16_t(' '));
|
|
if (mDeclaration)
|
|
{
|
|
nsAutoString tempString;
|
|
mDeclaration->ToString( tempString );
|
|
aCssText.Append( tempString );
|
|
}
|
|
aCssText.Append(char16_t(' '));
|
|
aCssText.Append(char16_t('}'));
|
|
}
|
|
|
|
void
|
|
StyleRule::SetCssText(const nsAString& aCssText)
|
|
{
|
|
// XXX TBI - need to re-parse rule & declaration
|
|
}
|
|
|
|
void
|
|
StyleRule::GetSelectorText(nsAString& aSelectorText)
|
|
{
|
|
if (mSelector)
|
|
mSelector->ToString(aSelectorText, GetStyleSheet());
|
|
else
|
|
aSelectorText.Truncate();
|
|
}
|
|
|
|
void
|
|
StyleRule::SetSelectorText(const nsAString& aSelectorText)
|
|
{
|
|
// XXX TBI - get a parser and re-parse the selectors,
|
|
// XXX then need to re-compute the cascade
|
|
// XXX and dirty sheet
|
|
}
|
|
|
|
/* virtual */ size_t
|
|
StyleRule::SizeOfIncludingThis(mozilla::MallocSizeOf aMallocSizeOf) const
|
|
{
|
|
size_t n = aMallocSizeOf(this);
|
|
n += mSelector ? mSelector->SizeOfIncludingThis(aMallocSizeOf) : 0;
|
|
n += mDeclaration ? mDeclaration->SizeOfIncludingThis(aMallocSizeOf) : 0;
|
|
|
|
// Measurement of the following members may be added later if DMD finds it is
|
|
// worthwhile:
|
|
// - mImportantRule;
|
|
// - mDOMRule;
|
|
|
|
return n;
|
|
}
|
|
|
|
|
|
} // namespace css
|
|
} // namespace mozilla
|