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gecko-dev/layout/style/nsCSSRules.cpp

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 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) */
#include "nsCSSRules.h"
#include "nsCSSCounterStyleRule.h"
#include "nsCSSFontFaceRule.h"
#include "mozilla/Attributes.h"
#include "nsCSSValue.h"
#include "mozilla/StyleSheetInlines.h"
#include "mozilla/MemoryReporting.h"
#include "mozilla/css/ImportRule.h"
#include "mozilla/css/NameSpaceRule.h"
#include "nsString.h"
#include "nsIAtom.h"
#include "nsCSSProps.h"
#include "nsCOMPtr.h"
#include "nsIDOMCSSStyleSheet.h"
#include "nsMediaList.h"
#include "mozilla/dom/CSSRuleList.h"
#include "nsIDocument.h"
#include "nsPresContext.h"
#include "nsContentUtils.h"
#include "nsError.h"
#include "nsStyleUtil.h"
#include "mozilla/DeclarationBlockInlines.h"
#include "nsCSSParser.h"
#include "nsDOMClassInfoID.h"
#include "mozilla/dom/CSSStyleDeclarationBinding.h"
#include "mozilla/dom/CSSFontFaceRuleBinding.h"
#include "mozilla/dom/CSSFontFeatureValuesRuleBinding.h"
#include "mozilla/dom/CSSCounterStyleRuleBinding.h"
#include "StyleRule.h"
#include "nsFont.h"
#include "nsIURI.h"
#include "mozAutoDocUpdate.h"
#include "nsCCUncollectableMarker.h"
#include "nsWrapperCacheInlines.h"
using namespace mozilla;
using namespace mozilla::dom;
// base class for all rule types in a CSS style sheet
namespace mozilla {
namespace css {
NS_IMPL_CYCLE_COLLECTING_ADDREF(Rule)
NS_IMPL_CYCLE_COLLECTING_RELEASE(Rule)
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(Rule)
NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
NS_INTERFACE_MAP_ENTRY(nsIDOMCSSRule)
NS_INTERFACE_MAP_ENTRY(nsISupports)
NS_INTERFACE_MAP_END
NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_0(Rule)
bool
Rule::IsCCLeaf() const
{
return !PreservingWrapper();
}
bool
Rule::IsKnownLive() const
{
if (HasKnownLiveWrapper()) {
return true;
}
StyleSheet* sheet = GetStyleSheet();
if (!sheet) {
return false;
}
if (!sheet->IsOwnedByDocument()) {
return false;
}
return nsCCUncollectableMarker::InGeneration(
sheet->GetAssociatedDocument()->GetMarkedCCGeneration());
}
NS_IMPL_CYCLE_COLLECTION_CAN_SKIP_BEGIN(Rule)
return tmp->IsCCLeaf() || tmp->IsKnownLive();
NS_IMPL_CYCLE_COLLECTION_CAN_SKIP_END
NS_IMPL_CYCLE_COLLECTION_CAN_SKIP_IN_CC_BEGIN(Rule)
// Please see documentation for nsCycleCollectionParticipant::CanSkip* for why
// we need to check HasNothingToTrace here but not in the other two CanSkip
// methods.
return tmp->IsCCLeaf() ||
(tmp->IsKnownLive() && tmp->HasNothingToTrace(tmp));
NS_IMPL_CYCLE_COLLECTION_CAN_SKIP_IN_CC_END
NS_IMPL_CYCLE_COLLECTION_CAN_SKIP_THIS_BEGIN(Rule)
return tmp->IsCCLeaf() || tmp->IsKnownLive();
NS_IMPL_CYCLE_COLLECTION_CAN_SKIP_THIS_END
/* virtual */ void
Rule::SetStyleSheet(StyleSheet* aSheet)
{
// We don't reference count this up reference. The style sheet
// will tell us when it's going away or when we're detached from
// it.
mSheet = aSheet;
}
NS_IMETHODIMP
Rule::GetParentRule(nsIDOMCSSRule** aParentRule)
{
NS_IF_ADDREF(*aParentRule = mParentRule);
return NS_OK;
}
NS_IMETHODIMP
Rule::GetParentStyleSheet(nsIDOMCSSStyleSheet** aSheet)
{
NS_ENSURE_ARG_POINTER(aSheet);
NS_IF_ADDREF(*aSheet = GetStyleSheet());
return NS_OK;
}
/* virtual */ css::Rule*
Rule::GetCSSRule()
{
return this;
}
NS_IMETHODIMP
Rule::GetType(uint16_t* aType)
{
*aType = Type();
return NS_OK;
}
NS_IMETHODIMP
Rule::SetCssText(const nsAString& aCssText)
{
// We used to throw for some rule types, but not all. Specifically, we did
// not throw for StyleRule. Let's just always not throw.
return NS_OK;
}
NS_IMETHODIMP
Rule::GetCssText(nsAString& aCssText)
{
GetCssTextImpl(aCssText);
return NS_OK;
}
Rule*
Rule::GetParentRule() const
{
return mParentRule;
}
// -------------------------------------------
// ImportRule
//
ImportRule::ImportRule(nsMediaList* aMedia, const nsString& aURLSpec,
uint32_t aLineNumber, uint32_t aColumnNumber)
: CSSImportRule(aLineNumber, aColumnNumber)
, mURLSpec(aURLSpec)
, mMedia(aMedia)
{
MOZ_ASSERT(aMedia);
// XXXbz This is really silly.... the mMedia here will be replaced
// with itself if we manage to load a sheet. Which should really
// never fail nowadays, in sane cases.
}
ImportRule::ImportRule(const ImportRule& aCopy)
: CSSImportRule(aCopy),
mURLSpec(aCopy.mURLSpec)
{
// Whether or not an @import rule has a null sheet is a permanent
// property of that @import rule, since it is null only if the target
// sheet failed security checks.
if (aCopy.mChildSheet) {
RefPtr<StyleSheet> sheet =
aCopy.mChildSheet->Clone(nullptr, this, nullptr, nullptr);
SetSheet(static_cast<CSSStyleSheet*>(sheet.get()));
// SetSheet sets mMedia appropriately
} else {
// We better just copy mMedia from aCopy, since we have nowhere else to get
// one.
mMedia = aCopy.mMedia;
}
}
ImportRule::~ImportRule()
{
if (mChildSheet) {
mChildSheet->SetOwnerRule(nullptr);
}
}
NS_IMPL_ADDREF_INHERITED(ImportRule, CSSImportRule)
NS_IMPL_RELEASE_INHERITED(ImportRule, CSSImportRule)
NS_IMPL_CYCLE_COLLECTION_INHERITED(ImportRule, CSSImportRule, mMedia, mChildSheet)
// QueryInterface implementation for ImportRule
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(ImportRule)
NS_INTERFACE_MAP_END_INHERITING(CSSImportRule)
#ifdef DEBUG
/* virtual */ void
ImportRule::List(FILE* out, int32_t aIndent) const
{
nsAutoCString str;
// Indent
for (int32_t indent = aIndent; --indent >= 0; ) {
str.AppendLiteral(" ");
}
str.AppendLiteral("@import \"");
AppendUTF16toUTF8(mURLSpec, str);
str.AppendLiteral("\" ");
nsAutoString mediaText;
mMedia->GetText(mediaText);
AppendUTF16toUTF8(mediaText, str);
str.AppendLiteral("\n");
fprintf_stderr(out, "%s", str.get());
}
#endif
/* virtual */ already_AddRefed<Rule>
ImportRule::Clone() const
{
RefPtr<Rule> clone = new ImportRule(*this);
return clone.forget();
}
void
ImportRule::SetSheet(CSSStyleSheet* aSheet)
{
NS_PRECONDITION(aSheet, "null arg");
// set the new sheet
mChildSheet = aSheet;
aSheet->SetOwnerRule(this);
// set our medialist to be the same as the sheet's medialist
mMedia = static_cast<nsMediaList*>(mChildSheet->Media());
}
void
ImportRule::GetCssTextImpl(nsAString& aCssText) const
{
aCssText.AssignLiteral("@import url(");
nsStyleUtil::AppendEscapedCSSString(mURLSpec, aCssText);
aCssText.Append(')');
if (mMedia) {
nsAutoString mediaText;
mMedia->GetText(mediaText);
if (!mediaText.IsEmpty()) {
aCssText.Append(' ');
aCssText.Append(mediaText);
}
}
aCssText.Append(';');
}
MediaList*
ImportRule::GetMedia() const
{
return mMedia;
}
StyleSheet*
ImportRule::GetStyleSheet() const
{
return mChildSheet;
}
NS_IMETHODIMP
ImportRule::GetHref(nsAString & aHref)
{
aHref = mURLSpec;
return NS_OK;
}
/* virtual */ size_t
ImportRule::SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const
{
return aMallocSizeOf(this);
// Measurement of the following members may be added later if DMD finds it is
// worthwhile:
// - mURLSpec
//
// The following members are not measured:
// - mMedia, because it is measured via CSSStyleSheet::mMedia
// - mChildSheet, because it is measured via CSSStyleSheetInner::mSheets
}
// -------------------------------------------
// nsICSSMediaRule
//
MediaRule::MediaRule(uint32_t aLineNumber, uint32_t aColumnNumber)
: CSSMediaRule(aLineNumber, aColumnNumber)
{
}
MediaRule::MediaRule(const MediaRule& aCopy)
: CSSMediaRule(aCopy)
{
if (aCopy.mMedia) {
mMedia = aCopy.mMedia->Clone().downcast<nsMediaList>();
// XXXldb This doesn't really make sense.
mMedia->SetStyleSheet(aCopy.GetStyleSheet());
}
}
MediaRule::~MediaRule()
{
if (mMedia) {
mMedia->SetStyleSheet(nullptr);
}
}
NS_IMPL_ADDREF_INHERITED(MediaRule, CSSMediaRule)
NS_IMPL_RELEASE_INHERITED(MediaRule, CSSMediaRule)
// QueryInterface implementation for MediaRule
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(MediaRule)
NS_INTERFACE_MAP_END_INHERITING(CSSMediaRule)
NS_IMPL_CYCLE_COLLECTION_INHERITED(MediaRule, CSSMediaRule,
mMedia)
/* virtual */ void
MediaRule::SetStyleSheet(StyleSheet* aSheet)
{
if (mMedia) {
// Set to null so it knows it's leaving one sheet and joining another.
mMedia->SetStyleSheet(nullptr);
if (aSheet) {
mMedia->SetStyleSheet(aSheet->AsGecko());
}
}
GroupRule::SetStyleSheet(aSheet);
}
#ifdef DEBUG
/* virtual */ void
MediaRule::List(FILE* out, int32_t aIndent) const
{
nsAutoCString indentStr;
for (int32_t indent = aIndent; --indent >= 0; ) {
indentStr.AppendLiteral(" ");
}
nsAutoCString str(indentStr);
str.AppendLiteral("@media ");
if (mMedia) {
nsAutoString mediaText;
mMedia->GetText(mediaText);
AppendUTF16toUTF8(mediaText, str);
}
str.AppendLiteral(" {\n");
fprintf_stderr(out, "%s", str.get());
GroupRule::List(out, aIndent);
fprintf_stderr(out, "%s}\n", indentStr.get());
}
#endif
/* virtual */ already_AddRefed<Rule>
MediaRule::Clone() const
{
RefPtr<Rule> clone = new MediaRule(*this);
return clone.forget();
}
nsresult
MediaRule::SetMedia(nsMediaList* aMedia)
{
mMedia = aMedia;
if (aMedia)
mMedia->SetStyleSheet(GetStyleSheet());
return NS_OK;
}
MediaList*
MediaRule::Media()
{
// In practice, if we end up being parsed at all, we have non-null mMedia. So
// it's OK to claim we don't return null here.
return mMedia;
}
void
MediaRule::GetCssTextImpl(nsAString& aCssText) const
{
aCssText.AssignLiteral("@media ");
AppendConditionText(aCssText);
GroupRule::AppendRulesToCssText(aCssText);
}
// nsIDOMCSSConditionRule methods
NS_IMETHODIMP
MediaRule::GetConditionText(nsAString& aConditionText)
{
aConditionText.Truncate(0);
AppendConditionText(aConditionText);
return NS_OK;
}
NS_IMETHODIMP
MediaRule::SetConditionText(const nsAString& aConditionText)
{
if (!mMedia) {
RefPtr<nsMediaList> media = new nsMediaList();
media->SetStyleSheet(GetStyleSheet());
nsresult rv = media->SetMediaText(aConditionText);
if (NS_SUCCEEDED(rv)) {
mMedia = media;
}
return rv;
}
return mMedia->SetMediaText(aConditionText);
}
// GroupRule interface
/* virtual */ bool
MediaRule::UseForPresentation(nsPresContext* aPresContext,
nsMediaQueryResultCacheKey& aKey)
{
if (mMedia) {
MOZ_ASSERT(aPresContext);
return mMedia->Matches(aPresContext, &aKey);
}
return true;
}
/* virtual */ size_t
MediaRule::SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const
{
size_t n = aMallocSizeOf(this);
n += GroupRule::SizeOfExcludingThis(aMallocSizeOf);
// Measurement of the following members may be added later if DMD finds it is
// worthwhile:
// - mMedia
return n;
}
void
MediaRule::AppendConditionText(nsAString& aOutput) const
{
if (mMedia) {
nsAutoString mediaText;
mMedia->GetText(mediaText);
aOutput.Append(mediaText);
}
}
DocumentRule::DocumentRule(uint32_t aLineNumber, uint32_t aColumnNumber)
: dom::CSSMozDocumentRule(aLineNumber, aColumnNumber)
{
}
DocumentRule::DocumentRule(const DocumentRule& aCopy)
: dom::CSSMozDocumentRule(aCopy)
, mURLs(new URL(*aCopy.mURLs))
{
}
DocumentRule::~DocumentRule()
{
}
NS_IMPL_ADDREF_INHERITED(DocumentRule, ConditionRule)
NS_IMPL_RELEASE_INHERITED(DocumentRule, ConditionRule)
// QueryInterface implementation for DocumentRule
NS_INTERFACE_MAP_BEGIN(DocumentRule)
NS_INTERFACE_MAP_END_INHERITING(dom::CSSMozDocumentRule)
#ifdef DEBUG
/* virtual */ void
DocumentRule::List(FILE* out, int32_t aIndent) const
{
nsAutoCString indentStr;
for (int32_t indent = aIndent; --indent >= 0; ) {
indentStr.AppendLiteral(" ");
}
nsAutoCString str;
str.AppendLiteral("@-moz-document ");
for (URL *url = mURLs; url; url = url->next) {
switch (url->func) {
case URLMatchingFunction::eURL:
str.AppendLiteral("url(\"");
break;
case URLMatchingFunction::eURLPrefix:
str.AppendLiteral("url-prefix(\"");
break;
case URLMatchingFunction::eDomain:
str.AppendLiteral("domain(\"");
break;
case URLMatchingFunction::eRegExp:
str.AppendLiteral("regexp(\"");
break;
}
nsAutoCString escapedURL(url->url);
escapedURL.ReplaceSubstring("\"", "\\\""); // escape quotes
str.Append(escapedURL);
str.AppendLiteral("\"), ");
}
str.Cut(str.Length() - 2, 1); // remove last ,
fprintf_stderr(out, "%s%s {\n", indentStr.get(), str.get());
GroupRule::List(out, aIndent);
fprintf_stderr(out, "%s}\n", indentStr.get());
}
#endif
/* virtual */ already_AddRefed<Rule>
DocumentRule::Clone() const
{
RefPtr<Rule> clone = new DocumentRule(*this);
return clone.forget();
}
void
DocumentRule::GetCssTextImpl(nsAString& aCssText) const
{
aCssText.AssignLiteral("@-moz-document ");
AppendConditionText(aCssText);
GroupRule::AppendRulesToCssText(aCssText);
}
// nsIDOMCSSConditionRule methods
NS_IMETHODIMP
DocumentRule::GetConditionText(nsAString& aConditionText)
{
aConditionText.Truncate(0);
AppendConditionText(aConditionText);
return NS_OK;
}
NS_IMETHODIMP
DocumentRule::SetConditionText(const nsAString& aConditionText)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
// GroupRule interface
/* virtual */ bool
DocumentRule::UseForPresentation(nsPresContext* aPresContext,
nsMediaQueryResultCacheKey& aKey)
{
return UseForPresentation(aPresContext);
}
bool
DocumentRule::UseForPresentation(nsPresContext* aPresContext)
{
nsIDocument *doc = aPresContext->Document();
nsIURI *docURI = doc->GetDocumentURI();
nsAutoCString docURISpec;
if (docURI) {
// If GetSpec fails (due to OOM) just skip these URI-specific CSS rules.
nsresult rv = docURI->GetSpec(docURISpec);
NS_ENSURE_SUCCESS(rv, false);
}
for (URL *url = mURLs; url; url = url->next) {
if (UseForPresentation(doc, docURI, docURISpec, url->url, url->func)) {
return true;
}
}
return false;
}
bool
DocumentRule::UseForPresentation(nsIDocument* aDoc,
nsIURI* aDocURI,
const nsACString& aDocURISpec,
const nsACString& aPattern,
URLMatchingFunction aUrlMatchingFunction)
{
switch (aUrlMatchingFunction) {
case URLMatchingFunction::eURL: {
if (aDocURISpec == aPattern) {
return true;
}
} break;
case URLMatchingFunction::eURLPrefix: {
if (StringBeginsWith(aDocURISpec, aPattern)) {
return true;
}
} break;
case URLMatchingFunction::eDomain: {
nsAutoCString host;
if (aDocURI) {
aDocURI->GetHost(host);
}
int32_t lenDiff = host.Length() - aPattern.Length();
if (lenDiff == 0) {
if (host == aPattern) {
return true;
}
} else {
if (StringEndsWith(host, aPattern) &&
host.CharAt(lenDiff - 1) == '.') {
return true;
}
}
} break;
case URLMatchingFunction::eRegExp: {
NS_ConvertUTF8toUTF16 spec(aDocURISpec);
NS_ConvertUTF8toUTF16 regex(aPattern);
if (nsContentUtils::IsPatternMatching(spec, regex, aDoc)) {
return true;
}
} break;
}
return false;
}
DocumentRule::URL::~URL()
{
NS_CSS_DELETE_LIST_MEMBER(DocumentRule::URL, this, next);
}
/* virtual */ size_t
DocumentRule::SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const
{
size_t n = aMallocSizeOf(this);
n += GroupRule::SizeOfExcludingThis(aMallocSizeOf);
// Measurement of the following members may be added later if DMD finds it is
// worthwhile:
// - mURLs
return n;
}
void
DocumentRule::AppendConditionText(nsAString& aCssText) const
{
for (URL *url = mURLs; url; url = url->next) {
switch (url->func) {
case URLMatchingFunction::eURL:
aCssText.AppendLiteral("url(");
break;
case URLMatchingFunction::eURLPrefix:
aCssText.AppendLiteral("url-prefix(");
break;
case URLMatchingFunction::eDomain:
aCssText.AppendLiteral("domain(");
break;
case URLMatchingFunction::eRegExp:
aCssText.AppendLiteral("regexp(");
break;
}
nsStyleUtil::AppendEscapedCSSString(NS_ConvertUTF8toUTF16(url->url),
aCssText);
aCssText.AppendLiteral("), ");
}
aCssText.Truncate(aCssText.Length() - 2); // remove last ", "
}
// -------------------------------------------
// NameSpaceRule
//
NameSpaceRule::NameSpaceRule(nsIAtom* aPrefix, const nsString& aURLSpec,
uint32_t aLineNumber, uint32_t aColumnNumber)
: CSSNamespaceRule(aLineNumber, aColumnNumber),
mPrefix(aPrefix),
mURLSpec(aURLSpec)
{
}
NameSpaceRule::NameSpaceRule(const NameSpaceRule& aCopy)
: CSSNamespaceRule(aCopy),
mPrefix(aCopy.mPrefix),
mURLSpec(aCopy.mURLSpec)
{
}
NameSpaceRule::~NameSpaceRule()
{
}
NS_IMPL_ADDREF_INHERITED(NameSpaceRule, CSSNamespaceRule)
NS_IMPL_RELEASE_INHERITED(NameSpaceRule, CSSNamespaceRule)
// QueryInterface implementation for NameSpaceRule
// If this ever gets its own cycle-collection bits, reevaluate our IsCCLeaf
// implementation.
NS_INTERFACE_MAP_BEGIN(NameSpaceRule)
if (aIID.Equals(NS_GET_IID(css::NameSpaceRule))) {
*aInstancePtr = this;
NS_ADDREF_THIS();
return NS_OK;
}
else
NS_INTERFACE_MAP_END_INHERITING(CSSNamespaceRule)
#ifdef DEBUG
/* virtual */ void
NameSpaceRule::List(FILE* out, int32_t aIndent) const
{
nsAutoCString str;
for (int32_t indent = aIndent; --indent >= 0; ) {
str.AppendLiteral(" ");
}
nsAutoString buffer;
str.AppendLiteral("@namespace ");
if (mPrefix) {
mPrefix->ToString(buffer);
AppendUTF16toUTF8(buffer, str);
str.Append(' ');
}
str.AppendLiteral("url(\"");
AppendUTF16toUTF8(mURLSpec, str);
str.AppendLiteral("\")\n");
fprintf_stderr(out, "%s", str.get());
}
#endif
/* virtual */ already_AddRefed<Rule>
NameSpaceRule::Clone() const
{
RefPtr<Rule> clone = new NameSpaceRule(*this);
return clone.forget();
}
void
NameSpaceRule::GetCssTextImpl(nsAString& aCssText) const
{
aCssText.AssignLiteral("@namespace ");
if (mPrefix) {
aCssText.Append(nsDependentAtomString(mPrefix) + NS_LITERAL_STRING(" "));
}
aCssText.AppendLiteral("url(");
nsStyleUtil::AppendEscapedCSSString(mURLSpec, aCssText);
aCssText.AppendLiteral(");");
}
/* virtual */ size_t
NameSpaceRule::SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const
{
return aMallocSizeOf(this);
// Measurement of the following members may be added later if DMD finds it is
// worthwhile:
// - mPrefix
// - mURLSpec
}
} // namespace css
} // namespace mozilla
// -------------------------------------------
// nsCSSFontFaceStyleDecl and related routines
//
// Mapping from nsCSSFontDesc codes to CSSFontFaceDescriptors fields.
nsCSSValue CSSFontFaceDescriptors::* const
CSSFontFaceDescriptors::Fields[] = {
#define CSS_FONT_DESC(name_, method_) &CSSFontFaceDescriptors::m##method_,
#include "nsCSSFontDescList.h"
#undef CSS_FONT_DESC
};
const nsCSSValue&
CSSFontFaceDescriptors::Get(nsCSSFontDesc aFontDescID) const
{
MOZ_ASSERT(aFontDescID > eCSSFontDesc_UNKNOWN &&
aFontDescID < eCSSFontDesc_COUNT);
return this->*CSSFontFaceDescriptors::Fields[aFontDescID];
}
nsCSSValue&
CSSFontFaceDescriptors::Get(nsCSSFontDesc aFontDescID)
{
MOZ_ASSERT(aFontDescID > eCSSFontDesc_UNKNOWN &&
aFontDescID < eCSSFontDesc_COUNT);
return this->*CSSFontFaceDescriptors::Fields[aFontDescID];
}
// QueryInterface implementation for nsCSSFontFaceStyleDecl
NS_INTERFACE_MAP_BEGIN(nsCSSFontFaceStyleDecl)
NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
NS_INTERFACE_MAP_ENTRY(nsIDOMCSSStyleDeclaration)
NS_INTERFACE_MAP_ENTRY(nsICSSDeclaration)
NS_INTERFACE_MAP_ENTRY(nsISupports)
// We forward the cycle collection interfaces to ContainingRule(), 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 ContainingRule()->QueryInterface(aIID, aInstancePtr);
}
else
NS_INTERFACE_MAP_END
NS_IMPL_ADDREF_USING_AGGREGATOR(nsCSSFontFaceStyleDecl, ContainingRule())
NS_IMPL_RELEASE_USING_AGGREGATOR(nsCSSFontFaceStyleDecl, ContainingRule())
// helper for string GetPropertyValue and RemovePropertyValue
nsresult
nsCSSFontFaceStyleDecl::GetPropertyValue(nsCSSFontDesc aFontDescID,
nsAString & aResult) const
{
NS_ENSURE_ARG_RANGE(aFontDescID, eCSSFontDesc_UNKNOWN,
eCSSFontDesc_COUNT - 1);
aResult.Truncate();
if (aFontDescID == eCSSFontDesc_UNKNOWN)
return NS_OK;
const nsCSSValue& val = mDescriptors.Get(aFontDescID);
if (val.GetUnit() == eCSSUnit_Null) {
// Avoid having to check no-value in the Family and Src cases below.
return NS_OK;
}
switch (aFontDescID) {
case eCSSFontDesc_Family: {
// we don't use nsCSSValue::AppendToString here because it doesn't
// canonicalize the way we want, and anyway it's overkill when
// we know we have eCSSUnit_String
NS_ASSERTION(val.GetUnit() == eCSSUnit_String, "unexpected unit");
nsDependentString family(val.GetStringBufferValue());
nsStyleUtil::AppendEscapedCSSString(family, aResult);
return NS_OK;
}
case eCSSFontDesc_Style:
val.AppendToString(eCSSProperty_font_style, aResult,
nsCSSValue::eNormalized);
return NS_OK;
case eCSSFontDesc_Weight:
val.AppendToString(eCSSProperty_font_weight, aResult,
nsCSSValue::eNormalized);
return NS_OK;
case eCSSFontDesc_Stretch:
val.AppendToString(eCSSProperty_font_stretch, aResult,
nsCSSValue::eNormalized);
return NS_OK;
case eCSSFontDesc_FontFeatureSettings:
nsStyleUtil::AppendFontFeatureSettings(val, aResult);
return NS_OK;
case eCSSFontDesc_FontLanguageOverride:
val.AppendToString(eCSSProperty_font_language_override, aResult,
nsCSSValue::eNormalized);
return NS_OK;
case eCSSFontDesc_Display:
NS_ASSERTION(val.GetUnit() == eCSSUnit_Enumerated,
"unknown unit for font-display descriptor");
AppendASCIItoUTF16(nsCSSProps::ValueToKeyword(val.GetIntValue(),
nsCSSProps::kFontDisplayKTable), aResult);
return NS_OK;
case eCSSFontDesc_Src:
nsStyleUtil::AppendSerializedFontSrc(val, aResult);
return NS_OK;
case eCSSFontDesc_UnicodeRange:
nsStyleUtil::AppendUnicodeRange(val, aResult);
return NS_OK;
case eCSSFontDesc_UNKNOWN:
case eCSSFontDesc_COUNT:
;
}
NS_NOTREACHED("nsCSSFontFaceStyleDecl::GetPropertyValue: "
"out-of-range value got to the switch");
return NS_ERROR_INVALID_ARG;
}
NS_IMETHODIMP
nsCSSFontFaceStyleDecl::GetCssText(nsAString & aCssText)
{
GetCssTextImpl(aCssText);
return NS_OK;
}
void
nsCSSFontFaceStyleDecl::GetCssTextImpl(nsAString& aCssText) const
{
nsAutoString descStr;
aCssText.Truncate();
for (nsCSSFontDesc id = nsCSSFontDesc(eCSSFontDesc_UNKNOWN + 1);
id < eCSSFontDesc_COUNT;
id = nsCSSFontDesc(id + 1)) {
if (mDescriptors.Get(id).GetUnit() != eCSSUnit_Null &&
NS_SUCCEEDED(GetPropertyValue(id, descStr))) {
NS_ASSERTION(descStr.Length() > 0,
"GetCssText: non-null unit, empty property value");
aCssText.AppendLiteral(" ");
aCssText.AppendASCII(nsCSSProps::GetStringValue(id).get());
aCssText.AppendLiteral(": ");
aCssText.Append(descStr);
aCssText.AppendLiteral(";\n");
}
}
}
NS_IMETHODIMP
nsCSSFontFaceStyleDecl::SetCssText(const nsAString & aCssText)
{
return NS_ERROR_NOT_IMPLEMENTED; // bug 443978
}
NS_IMETHODIMP
nsCSSFontFaceStyleDecl::GetPropertyValue(const nsAString & propertyName,
nsAString & aResult)
{
return GetPropertyValue(nsCSSProps::LookupFontDesc(propertyName), aResult);
}
NS_IMETHODIMP
nsCSSFontFaceStyleDecl::GetAuthoredPropertyValue(const nsAString& propertyName,
nsAString& aResult)
{
// We don't return any authored property values different from
// GetPropertyValue, currently.
return GetPropertyValue(nsCSSProps::LookupFontDesc(propertyName), aResult);
}
already_AddRefed<dom::CSSValue>
nsCSSFontFaceStyleDecl::GetPropertyCSSValue(const nsAString & propertyName,
ErrorResult& aRv)
{
// ??? nsDOMCSSDeclaration returns null/NS_OK, but that seems wrong.
aRv.Throw(NS_ERROR_NOT_IMPLEMENTED);
return nullptr;
}
NS_IMETHODIMP
nsCSSFontFaceStyleDecl::RemoveProperty(const nsAString & propertyName,
nsAString & aResult)
{
nsCSSFontDesc descID = nsCSSProps::LookupFontDesc(propertyName);
NS_ASSERTION(descID >= eCSSFontDesc_UNKNOWN &&
descID < eCSSFontDesc_COUNT,
"LookupFontDesc returned value out of range");
if (descID == eCSSFontDesc_UNKNOWN) {
aResult.Truncate();
} else {
nsresult rv = GetPropertyValue(descID, aResult);
NS_ENSURE_SUCCESS(rv, rv);
mDescriptors.Get(descID).Reset();
}
return NS_OK;
}
NS_IMETHODIMP
nsCSSFontFaceStyleDecl::GetPropertyPriority(const nsAString & propertyName,
nsAString & aResult)
{
// font descriptors do not have priorities at present
aResult.Truncate();
return NS_OK;
}
NS_IMETHODIMP
nsCSSFontFaceStyleDecl::SetProperty(const nsAString & propertyName,
const nsAString & value,
const nsAString & priority)
{
// FIXME(heycam): If we are changing unicode-range, then a FontFace object
// representing this rule must have its mUnicodeRange value invalidated.
return NS_ERROR_NOT_IMPLEMENTED; // bug 443978
}
NS_IMETHODIMP
nsCSSFontFaceStyleDecl::GetLength(uint32_t *aLength)
{
uint32_t len = 0;
for (nsCSSFontDesc id = nsCSSFontDesc(eCSSFontDesc_UNKNOWN + 1);
id < eCSSFontDesc_COUNT;
id = nsCSSFontDesc(id + 1))
if (mDescriptors.Get(id).GetUnit() != eCSSUnit_Null)
len++;
*aLength = len;
return NS_OK;
}
NS_IMETHODIMP
nsCSSFontFaceStyleDecl::Item(uint32_t aIndex, nsAString& aReturn)
{
bool found;
IndexedGetter(aIndex, found, aReturn);
if (!found) {
aReturn.Truncate();
}
return NS_OK;
}
void
nsCSSFontFaceStyleDecl::IndexedGetter(uint32_t index, bool& aFound, nsAString & aResult)
{
int32_t nset = -1;
for (nsCSSFontDesc id = nsCSSFontDesc(eCSSFontDesc_UNKNOWN + 1);
id < eCSSFontDesc_COUNT;
id = nsCSSFontDesc(id + 1)) {
if (mDescriptors.Get(id).GetUnit() != eCSSUnit_Null) {
nset++;
if (nset == int32_t(index)) {
aFound = true;
aResult.AssignASCII(nsCSSProps::GetStringValue(id).get());
return;
}
}
}
aFound = false;
}
NS_IMETHODIMP
nsCSSFontFaceStyleDecl::GetParentRule(nsIDOMCSSRule** aParentRule)
{
NS_IF_ADDREF(*aParentRule = ContainingRule());
return NS_OK;
}
NS_IMETHODIMP
nsCSSFontFaceStyleDecl::GetPropertyValue(const nsCSSPropertyID aPropID,
nsAString& aValue)
{
return
GetPropertyValue(NS_ConvertUTF8toUTF16(nsCSSProps::GetStringValue(aPropID)),
aValue);
}
NS_IMETHODIMP
nsCSSFontFaceStyleDecl::SetPropertyValue(const nsCSSPropertyID aPropID,
const nsAString& aValue)
{
return SetProperty(NS_ConvertUTF8toUTF16(nsCSSProps::GetStringValue(aPropID)),
aValue, EmptyString());
}
nsINode*
nsCSSFontFaceStyleDecl::GetParentObject()
{
return ContainingRule()->GetDocument();
}
JSObject*
nsCSSFontFaceStyleDecl::WrapObject(JSContext *cx, JS::Handle<JSObject*> aGivenProto)
{
return mozilla::dom::CSSStyleDeclarationBinding::Wrap(cx, this, aGivenProto);
}
// -------------------------------------------
// nsCSSFontFaceRule
//
/* virtual */ already_AddRefed<css::Rule>
nsCSSFontFaceRule::Clone() const
{
RefPtr<css::Rule> clone = new nsCSSFontFaceRule(*this);
return clone.forget();
}
NS_IMPL_ADDREF_INHERITED(nsCSSFontFaceRule, mozilla::css::Rule)
NS_IMPL_RELEASE_INHERITED(nsCSSFontFaceRule, mozilla::css::Rule)
NS_IMPL_CYCLE_COLLECTION_CLASS(nsCSSFontFaceRule)
NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN_INHERITED(nsCSSFontFaceRule,
mozilla::css::Rule)
// Keep this in sync with IsCCLeaf.
// 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->mDecl.TraceWrapper(aCallbacks, aClosure);
NS_IMPL_CYCLE_COLLECTION_TRACE_END
NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(nsCSSFontFaceRule,
mozilla::css::Rule)
// Keep this in sync with IsCCLeaf.
// 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->mDecl.ReleaseWrapper(static_cast<nsISupports*>(p));
NS_IMPL_CYCLE_COLLECTION_UNLINK_END
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(nsCSSFontFaceRule,
mozilla::css::Rule)
// Keep this in sync with IsCCLeaf.
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
bool
nsCSSFontFaceRule::IsCCLeaf() const
{
if (!Rule::IsCCLeaf()) {
return false;
}
return !mDecl.PreservingWrapper();
}
// QueryInterface implementation for nsCSSFontFaceRule
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(nsCSSFontFaceRule)
NS_INTERFACE_MAP_ENTRY(nsIDOMCSSFontFaceRule)
NS_INTERFACE_MAP_END_INHERITING(Rule)
#ifdef DEBUG
void
nsCSSFontFaceRule::List(FILE* out, int32_t aIndent) const
{
nsCString baseInd, descInd;
for (int32_t indent = aIndent; --indent >= 0; ) {
baseInd.AppendLiteral(" ");
descInd.AppendLiteral(" ");
}
descInd.AppendLiteral(" ");
nsString descStr;
fprintf_stderr(out, "%s@font-face {\n", baseInd.get());
for (nsCSSFontDesc id = nsCSSFontDesc(eCSSFontDesc_UNKNOWN + 1);
id < eCSSFontDesc_COUNT;
id = nsCSSFontDesc(id + 1))
if (mDecl.mDescriptors.Get(id).GetUnit() != eCSSUnit_Null) {
if (NS_FAILED(mDecl.GetPropertyValue(id, descStr)))
descStr.AssignLiteral("#<serialization error>");
else if (descStr.Length() == 0)
descStr.AssignLiteral("#<serialization missing>");
fprintf_stderr(out, "%s%s: %s\n",
descInd.get(), nsCSSProps::GetStringValue(id).get(),
NS_ConvertUTF16toUTF8(descStr).get());
}
fprintf_stderr(out, "%s}\n", baseInd.get());
}
#endif
/* virtual */ int32_t
nsCSSFontFaceRule::GetType() const
{
return Rule::FONT_FACE_RULE;
}
uint16_t
nsCSSFontFaceRule::Type() const
{
return nsIDOMCSSRule::FONT_FACE_RULE;
}
void
nsCSSFontFaceRule::GetCssTextImpl(nsAString& aCssText) const
{
nsAutoString propText;
mDecl.GetCssTextImpl(propText);
aCssText.AssignLiteral("@font-face {\n");
aCssText.Append(propText);
aCssText.Append('}');
}
nsICSSDeclaration*
nsCSSFontFaceRule::Style()
{
return &mDecl;
}
NS_IMETHODIMP
nsCSSFontFaceRule::GetStyle(nsIDOMCSSStyleDeclaration** aStyle)
{
NS_IF_ADDREF(*aStyle = &mDecl);
return NS_OK;
}
// Arguably these should forward to nsCSSFontFaceStyleDecl methods.
void
nsCSSFontFaceRule::SetDesc(nsCSSFontDesc aDescID, nsCSSValue const & aValue)
{
NS_PRECONDITION(aDescID > eCSSFontDesc_UNKNOWN &&
aDescID < eCSSFontDesc_COUNT,
"aDescID out of range in nsCSSFontFaceRule::SetDesc");
// FIXME: handle dynamic changes
// FIXME(heycam): If we are changing unicode-range, then a FontFace object
// representing this rule must have its mUnicodeRange value invalidated.
mDecl.mDescriptors.Get(aDescID) = aValue;
}
void
nsCSSFontFaceRule::GetDesc(nsCSSFontDesc aDescID, nsCSSValue & aValue)
{
NS_PRECONDITION(aDescID > eCSSFontDesc_UNKNOWN &&
aDescID < eCSSFontDesc_COUNT,
"aDescID out of range in nsCSSFontFaceRule::GetDesc");
aValue = mDecl.mDescriptors.Get(aDescID);
}
/* virtual */ size_t
nsCSSFontFaceRule::SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const
{
return aMallocSizeOf(this);
// Measurement of the following members may be added later if DMD finds it is
// worthwhile:
// - mDecl
}
/* virtual */ JSObject*
nsCSSFontFaceRule::WrapObject(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto)
{
return CSSFontFaceRuleBinding::Wrap(aCx, this, aGivenProto);
}
// -----------------------------------
// nsCSSFontFeatureValuesRule
//
/* virtual */ already_AddRefed<css::Rule>
nsCSSFontFeatureValuesRule::Clone() const
{
RefPtr<css::Rule> clone = new nsCSSFontFeatureValuesRule(*this);
return clone.forget();
}
NS_IMPL_ADDREF_INHERITED(nsCSSFontFeatureValuesRule, mozilla::css::Rule)
NS_IMPL_RELEASE_INHERITED(nsCSSFontFeatureValuesRule, mozilla::css::Rule)
// QueryInterface implementation for nsCSSFontFeatureValuesRule
// If this ever gets its own cycle-collection bits, reevaluate our IsCCLeaf
// implementation.
NS_INTERFACE_MAP_BEGIN(nsCSSFontFeatureValuesRule)
NS_INTERFACE_MAP_ENTRY(nsIDOMCSSFontFeatureValuesRule)
NS_INTERFACE_MAP_END_INHERITING(mozilla::css::Rule)
bool
nsCSSFontFeatureValuesRule::IsCCLeaf() const
{
return Rule::IsCCLeaf();
}
static void
FeatureValuesToString(
const nsTArray<gfxFontFeatureValueSet::FeatureValues>& aFeatureValues,
nsAString& aOutStr)
{
uint32_t i, n;
// append values
n = aFeatureValues.Length();
for (i = 0; i < n; i++) {
const gfxFontFeatureValueSet::FeatureValues& fv = aFeatureValues[i];
// @alternate
aOutStr.AppendLiteral(" @");
nsAutoString functAlt;
nsStyleUtil::GetFunctionalAlternatesName(fv.alternate, functAlt);
aOutStr.Append(functAlt);
aOutStr.AppendLiteral(" {");
// for each ident-values tuple
uint32_t j, numValues = fv.valuelist.Length();
for (j = 0; j < numValues; j++) {
aOutStr.Append(' ');
const gfxFontFeatureValueSet::ValueList& vlist = fv.valuelist[j];
nsStyleUtil::AppendEscapedCSSIdent(vlist.name, aOutStr);
aOutStr.Append(':');
uint32_t k, numSelectors = vlist.featureSelectors.Length();
for (k = 0; k < numSelectors; k++) {
aOutStr.Append(' ');
aOutStr.AppendInt(vlist.featureSelectors[k]);
}
aOutStr.Append(';');
}
aOutStr.AppendLiteral(" }\n");
}
}
static void
FontFeatureValuesRuleToString(
const mozilla::FontFamilyList& aFamilyList,
const nsTArray<gfxFontFeatureValueSet::FeatureValues>& aFeatureValues,
nsAString& aOutStr)
{
aOutStr.AssignLiteral("@font-feature-values ");
nsAutoString familyListStr, valueTextStr;
nsStyleUtil::AppendEscapedCSSFontFamilyList(aFamilyList, familyListStr);
aOutStr.Append(familyListStr);
aOutStr.AppendLiteral(" {\n");
FeatureValuesToString(aFeatureValues, valueTextStr);
aOutStr.Append(valueTextStr);
aOutStr.Append('}');
}
#ifdef DEBUG
void
nsCSSFontFeatureValuesRule::List(FILE* out, int32_t aIndent) const
{
nsAutoString text;
FontFeatureValuesRuleToString(mFamilyList, mFeatureValues, text);
NS_ConvertUTF16toUTF8 utf8(text);
// replace newlines with newlines plus indent spaces
char* indent = new char[(aIndent + 1) * 2];
int32_t i;
for (i = 1; i < (aIndent + 1) * 2 - 1; i++) {
indent[i] = 0x20;
}
indent[0] = 0xa;
indent[aIndent * 2 + 1] = 0;
utf8.ReplaceSubstring("\n", indent);
delete [] indent;
nsAutoCString indentStr;
for (i = aIndent; --i >= 0; ) {
indentStr.AppendLiteral(" ");
}
fprintf_stderr(out, "%s%s\n", indentStr.get(), utf8.get());
}
#endif
/* virtual */ int32_t
nsCSSFontFeatureValuesRule::GetType() const
{
return Rule::FONT_FEATURE_VALUES_RULE;
}
uint16_t
nsCSSFontFeatureValuesRule::Type() const
{
return nsIDOMCSSRule::FONT_FEATURE_VALUES_RULE;
}
void
nsCSSFontFeatureValuesRule::GetCssTextImpl(nsAString& aCssText) const
{
FontFeatureValuesRuleToString(mFamilyList, mFeatureValues, aCssText);
}
void
nsCSSFontFeatureValuesRule::SetFontFamily(const nsAString& aFamily,
ErrorResult& aRv)
{
aRv.Throw(NS_ERROR_NOT_IMPLEMENTED);
}
void
nsCSSFontFeatureValuesRule::SetValueText(const nsAString& aFamily,
ErrorResult& aRv)
{
aRv.Throw(NS_ERROR_NOT_IMPLEMENTED);
}
NS_IMETHODIMP
nsCSSFontFeatureValuesRule::GetFontFamily(nsAString& aFamilyListStr)
{
nsStyleUtil::AppendEscapedCSSFontFamilyList(mFamilyList, aFamilyListStr);
return NS_OK;
}
NS_IMETHODIMP
nsCSSFontFeatureValuesRule::SetFontFamily(const nsAString& aFontFamily)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
nsCSSFontFeatureValuesRule::GetValueText(nsAString& aValueText)
{
FeatureValuesToString(mFeatureValues, aValueText);
return NS_OK;
}
NS_IMETHODIMP
nsCSSFontFeatureValuesRule::SetValueText(const nsAString& aValueText)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
struct MakeFamilyArray {
explicit MakeFamilyArray(nsTArray<nsString>& aFamilyArray)
: familyArray(aFamilyArray), hasGeneric(false)
{}
static bool
AddFamily(const nsString& aFamily, bool aGeneric, void* aData)
{
MakeFamilyArray *familyArr = reinterpret_cast<MakeFamilyArray*> (aData);
if (!aGeneric && !aFamily.IsEmpty()) {
familyArr->familyArray.AppendElement(aFamily);
}
if (aGeneric) {
familyArr->hasGeneric = true;
}
return true;
}
nsTArray<nsString>& familyArray;
bool hasGeneric;
};
void
nsCSSFontFeatureValuesRule::SetFamilyList(
const mozilla::FontFamilyList& aFamilyList)
{
mFamilyList = aFamilyList;
}
void
nsCSSFontFeatureValuesRule::AddValueList(int32_t aVariantAlternate,
nsTArray<gfxFontFeatureValueSet::ValueList>& aValueList)
{
uint32_t i, len = mFeatureValues.Length();
bool foundAlternate = false;
// add to an existing list for a given property value
for (i = 0; i < len; i++) {
gfxFontFeatureValueSet::FeatureValues& f = mFeatureValues.ElementAt(i);
if (f.alternate == uint32_t(aVariantAlternate)) {
f.valuelist.AppendElements(aValueList);
foundAlternate = true;
break;
}
}
// create a new list for a given property value
if (!foundAlternate) {
gfxFontFeatureValueSet::FeatureValues &f = *mFeatureValues.AppendElement();
f.alternate = aVariantAlternate;
f.valuelist.AppendElements(aValueList);
}
}
size_t
nsCSSFontFeatureValuesRule::SizeOfIncludingThis(
MallocSizeOf aMallocSizeOf) const
{
return aMallocSizeOf(this);
}
/* virtual */ JSObject*
nsCSSFontFeatureValuesRule::WrapObject(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto)
{
return CSSFontFeatureValuesRuleBinding::Wrap(aCx, this, aGivenProto);
}
// -------------------------------------------
// nsCSSKeyframeStyleDeclaration
//
nsCSSKeyframeStyleDeclaration::nsCSSKeyframeStyleDeclaration(nsCSSKeyframeRule *aRule)
: mRule(aRule)
{
}
nsCSSKeyframeStyleDeclaration::~nsCSSKeyframeStyleDeclaration()
{
NS_ASSERTION(!mRule, "DropReference not called.");
}
NS_IMPL_CYCLE_COLLECTING_ADDREF(nsCSSKeyframeStyleDeclaration)
NS_IMPL_CYCLE_COLLECTING_RELEASE(nsCSSKeyframeStyleDeclaration)
NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_0(nsCSSKeyframeStyleDeclaration)
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(nsCSSKeyframeStyleDeclaration)
NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
NS_INTERFACE_MAP_END_INHERITING(nsDOMCSSDeclaration)
DeclarationBlock*
nsCSSKeyframeStyleDeclaration::GetCSSDeclaration(Operation aOperation)
{
if (mRule) {
return mRule->Declaration();
} else {
return nullptr;
}
}
void
nsCSSKeyframeStyleDeclaration::GetCSSParsingEnvironment(CSSParsingEnvironment& aCSSParseEnv)
{
GetCSSParsingEnvironmentForRule(mRule, aCSSParseEnv);
}
nsDOMCSSDeclaration::ServoCSSParsingEnvironment
nsCSSKeyframeStyleDeclaration::GetServoCSSParsingEnvironment() const
{
MOZ_CRASH("GetURLData shouldn't be calling on a Gecko rule");
}
NS_IMETHODIMP
nsCSSKeyframeStyleDeclaration::GetParentRule(nsIDOMCSSRule **aParent)
{
NS_ENSURE_ARG_POINTER(aParent);
NS_IF_ADDREF(*aParent = mRule);
return NS_OK;
}
nsresult
nsCSSKeyframeStyleDeclaration::SetCSSDeclaration(DeclarationBlock* aDecl)
{
MOZ_ASSERT(aDecl, "must be non-null");
mRule->ChangeDeclaration(aDecl->AsGecko());
return NS_OK;
}
nsIDocument*
nsCSSKeyframeStyleDeclaration::DocToUpdate()
{
return nullptr;
}
nsINode*
nsCSSKeyframeStyleDeclaration::GetParentObject()
{
return mRule ? mRule->GetDocument() : nullptr;
}
// -------------------------------------------
// nsCSSKeyframeRule
//
nsCSSKeyframeRule::nsCSSKeyframeRule(const nsCSSKeyframeRule& aCopy)
// copy everything except our reference count and mDOMDeclaration
: dom::CSSKeyframeRule(aCopy)
, mKeys(aCopy.mKeys)
, mDeclaration(new css::Declaration(*aCopy.mDeclaration))
{
mDeclaration->SetOwningRule(this);
}
nsCSSKeyframeRule::~nsCSSKeyframeRule()
{
mDeclaration->SetOwningRule(nullptr);
if (mDOMDeclaration) {
mDOMDeclaration->DropReference();
}
}
/* virtual */ already_AddRefed<css::Rule>
nsCSSKeyframeRule::Clone() const
{
RefPtr<css::Rule> clone = new nsCSSKeyframeRule(*this);
return clone.forget();
}
NS_IMPL_ADDREF_INHERITED(nsCSSKeyframeRule, dom::CSSKeyframeRule)
NS_IMPL_RELEASE_INHERITED(nsCSSKeyframeRule, dom::CSSKeyframeRule)
NS_IMPL_CYCLE_COLLECTION_CLASS(nsCSSKeyframeRule)
NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(nsCSSKeyframeRule,
dom::CSSKeyframeRule)
if (tmp->mDOMDeclaration) {
tmp->mDOMDeclaration->DropReference();
tmp->mDOMDeclaration = nullptr;
}
NS_IMPL_CYCLE_COLLECTION_UNLINK_END
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(nsCSSKeyframeRule,
dom::CSSKeyframeRule)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mDOMDeclaration)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
bool
nsCSSKeyframeRule::IsCCLeaf() const
{
// Let's not worry about figuring out whether we're a leaf or not.
return false;
}
// QueryInterface implementation for nsCSSKeyframeRule
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(nsCSSKeyframeRule)
NS_INTERFACE_MAP_END_INHERITING(dom::CSSKeyframeRule)
#ifdef DEBUG
void
nsCSSKeyframeRule::List(FILE* out, int32_t aIndent) const
{
nsAutoCString str;
for (int32_t index = aIndent; --index >= 0; ) {
str.AppendLiteral(" ");
}
nsAutoString tmp;
DoGetKeyText(tmp);
AppendUTF16toUTF8(tmp, str);
str.AppendLiteral(" { ");
mDeclaration->ToString(tmp);
AppendUTF16toUTF8(tmp, str);
str.AppendLiteral("}\n");
fprintf_stderr(out, "%s", str.get());
}
#endif
void
nsCSSKeyframeRule::GetCssTextImpl(nsAString& aCssText) const
{
DoGetKeyText(aCssText);
aCssText.AppendLiteral(" { ");
nsAutoString tmp;
mDeclaration->ToString(tmp);
aCssText.Append(tmp);
aCssText.AppendLiteral(" }");
}
NS_IMETHODIMP
nsCSSKeyframeRule::GetKeyText(nsAString& aKeyText)
{
DoGetKeyText(aKeyText);
return NS_OK;
}
void
nsCSSKeyframeRule::DoGetKeyText(nsAString& aKeyText) const
{
aKeyText.Truncate();
uint32_t i = 0, i_end = mKeys.Length();
MOZ_ASSERT(i_end != 0, "must have some keys");
for (;;) {
aKeyText.AppendFloat(mKeys[i] * 100.0f);
aKeyText.Append(char16_t('%'));
if (++i == i_end) {
break;
}
aKeyText.AppendLiteral(", ");
}
}
NS_IMETHODIMP
nsCSSKeyframeRule::SetKeyText(const nsAString& aKeyText)
{
nsCSSParser parser;
InfallibleTArray<float> newSelectors;
// FIXME: pass filename and line number
if (!parser.ParseKeyframeSelectorString(aKeyText, nullptr, 0, newSelectors)) {
// for now, we don't do anything if the parse fails
return NS_OK;
}
nsIDocument* doc = GetDocument();
MOZ_AUTO_DOC_UPDATE(doc, UPDATE_STYLE, true);
newSelectors.SwapElements(mKeys);
if (StyleSheet* sheet = GetStyleSheet()) {
sheet->AsGecko()->SetModifiedByChildRule();
if (doc) {
doc->StyleRuleChanged(sheet, this);
}
}
return NS_OK;
}
nsICSSDeclaration*
nsCSSKeyframeRule::Style()
{
if (!mDOMDeclaration) {
mDOMDeclaration = new nsCSSKeyframeStyleDeclaration(this);
}
return mDOMDeclaration;
}
void
nsCSSKeyframeRule::ChangeDeclaration(css::Declaration* aDeclaration)
{
// Our caller already did a BeginUpdate/EndUpdate, but with
// UPDATE_CONTENT, and we need UPDATE_STYLE to trigger work in
// PresShell::EndUpdate.
nsIDocument* doc = GetDocument();
MOZ_AUTO_DOC_UPDATE(doc, UPDATE_STYLE, true);
if (aDeclaration != mDeclaration) {
mDeclaration->SetOwningRule(nullptr);
mDeclaration = aDeclaration;
mDeclaration->SetOwningRule(this);
}
if (StyleSheet* sheet = GetStyleSheet()) {
sheet->AsGecko()->SetModifiedByChildRule();
if (doc) {
doc->StyleRuleChanged(sheet, this);
}
}
}
/* virtual */ size_t
nsCSSKeyframeRule::SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const
{
return aMallocSizeOf(this);
// Measurement of the following members may be added later if DMD finds it is
// worthwhile:
// - mKeys
// - mDeclaration
// - mDOMDeclaration
}
// -------------------------------------------
// nsCSSKeyframesRule
//
nsCSSKeyframesRule::nsCSSKeyframesRule(const nsCSSKeyframesRule& aCopy)
// copy everything except our reference count. GroupRule's copy
// constructor also doesn't copy the lazily-constructed
// mRuleCollection.
: dom::CSSKeyframesRule(aCopy),
mName(aCopy.mName)
{
}
nsCSSKeyframesRule::~nsCSSKeyframesRule()
{
}
/* virtual */ already_AddRefed<css::Rule>
nsCSSKeyframesRule::Clone() const
{
RefPtr<css::Rule> clone = new nsCSSKeyframesRule(*this);
return clone.forget();
}
NS_IMPL_ADDREF_INHERITED(nsCSSKeyframesRule, dom::CSSKeyframesRule)
NS_IMPL_RELEASE_INHERITED(nsCSSKeyframesRule, dom::CSSKeyframesRule)
// QueryInterface implementation for nsCSSKeyframesRule
NS_INTERFACE_MAP_BEGIN(nsCSSKeyframesRule)
NS_INTERFACE_MAP_END_INHERITING(dom::CSSKeyframesRule)
#ifdef DEBUG
void
nsCSSKeyframesRule::List(FILE* out, int32_t aIndent) const
{
nsAutoCString indentStr;
for (int32_t indent = aIndent; --indent >= 0; ) {
indentStr.AppendLiteral(" ");
}
fprintf_stderr(out, "%s@keyframes %s {\n",
indentStr.get(), NS_ConvertUTF16toUTF8(mName).get());
GroupRule::List(out, aIndent);
fprintf_stderr(out, "%s}\n", indentStr.get());
}
#endif
void
nsCSSKeyframesRule::GetCssTextImpl(nsAString& aCssText) const
{
aCssText.AssignLiteral("@keyframes ");
aCssText.Append(mName);
aCssText.AppendLiteral(" {\n");
nsAutoString tmp;
for (const Rule* rule : GeckoRules()) {
static_cast<const nsCSSKeyframeRule*>(rule)->GetCssText(tmp);
aCssText.Append(tmp);
aCssText.Append('\n');
}
aCssText.Append('}');
}
NS_IMETHODIMP
nsCSSKeyframesRule::GetName(nsAString& aName)
{
aName = mName;
return NS_OK;
}
NS_IMETHODIMP
nsCSSKeyframesRule::SetName(const nsAString& aName)
{
if (mName == aName) {
return NS_OK;
}
nsIDocument* doc = GetDocument();
MOZ_AUTO_DOC_UPDATE(doc, UPDATE_STYLE, true);
mName = aName;
if (StyleSheet* sheet = GetStyleSheet()) {
sheet->AsGecko()->SetModifiedByChildRule();
if (doc) {
doc->StyleRuleChanged(sheet, this);
}
}
return NS_OK;
}
NS_IMETHODIMP
nsCSSKeyframesRule::AppendRule(const nsAString& aRule)
{
// The spec is confusing, and I think we should just append the rule,
// which also turns out to match WebKit:
// http://lists.w3.org/Archives/Public/www-style/2011Apr/0034.html
nsCSSParser parser;
// FIXME: pass filename and line number
RefPtr<nsCSSKeyframeRule> rule =
parser.ParseKeyframeRule(aRule, nullptr, 0);
if (rule) {
nsIDocument* doc = GetDocument();
MOZ_AUTO_DOC_UPDATE(doc, UPDATE_STYLE, true);
AppendStyleRule(rule);
if (StyleSheet* sheet = GetStyleSheet()) {
sheet->AsGecko()->SetModifiedByChildRule();
if (doc) {
doc->StyleRuleChanged(sheet, this);
}
}
}
return NS_OK;
}
static const uint32_t RULE_NOT_FOUND = uint32_t(-1);
uint32_t
nsCSSKeyframesRule::FindRuleIndexForKey(const nsAString& aKey)
{
nsCSSParser parser;
InfallibleTArray<float> keys;
// FIXME: pass filename and line number
if (parser.ParseKeyframeSelectorString(aKey, nullptr, 0, keys)) {
IncrementalClearCOMRuleArray& rules = GeckoRules();
// The spec isn't clear, but we'll match on the key list, which
// mostly matches what WebKit does, except we'll do last-match
// instead of first-match, and handling parsing differences better.
// http://lists.w3.org/Archives/Public/www-style/2011Apr/0036.html
// http://lists.w3.org/Archives/Public/www-style/2011Apr/0037.html
for (uint32_t i = rules.Count(); i-- != 0; ) {
if (static_cast<nsCSSKeyframeRule*>(rules[i])->GetKeys() == keys) {
return i;
}
}
}
return RULE_NOT_FOUND;
}
NS_IMETHODIMP
nsCSSKeyframesRule::DeleteRule(const nsAString& aKey)
{
uint32_t index = FindRuleIndexForKey(aKey);
if (index != RULE_NOT_FOUND) {
nsIDocument* doc = GetDocument();
MOZ_AUTO_DOC_UPDATE(doc, UPDATE_STYLE, true);
DeleteStyleRuleAt(index);
if (StyleSheet* sheet = GetStyleSheet()) {
sheet->AsGecko()->SetModifiedByChildRule();
if (doc) {
doc->StyleRuleChanged(sheet, this);
}
}
}
return NS_OK;
}
nsCSSKeyframeRule*
nsCSSKeyframesRule::FindRule(const nsAString& aKey)
{
uint32_t index = FindRuleIndexForKey(aKey);
if (index == RULE_NOT_FOUND) {
return nullptr;
}
return static_cast<nsCSSKeyframeRule*>(GeckoRules()[index]);
}
/* virtual */ size_t
nsCSSKeyframesRule::SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const
{
size_t n = aMallocSizeOf(this);
n += GroupRule::SizeOfExcludingThis(aMallocSizeOf);
// Measurement of the following members may be added later if DMD finds it is
// worthwhile:
// - mName
return n;
}
// -------------------------------------------
// nsCSSPageStyleDeclaration
//
nsCSSPageStyleDeclaration::nsCSSPageStyleDeclaration(nsCSSPageRule* aRule)
: mRule(aRule)
{
}
nsCSSPageStyleDeclaration::~nsCSSPageStyleDeclaration()
{
NS_ASSERTION(!mRule, "DropReference not called.");
}
NS_IMPL_CYCLE_COLLECTING_ADDREF(nsCSSPageStyleDeclaration)
NS_IMPL_CYCLE_COLLECTING_RELEASE(nsCSSPageStyleDeclaration)
NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE_0(nsCSSPageStyleDeclaration)
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(nsCSSPageStyleDeclaration)
NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY
NS_INTERFACE_MAP_END_INHERITING(nsDOMCSSDeclaration)
DeclarationBlock*
nsCSSPageStyleDeclaration::GetCSSDeclaration(Operation aOperation)
{
if (mRule) {
return mRule->Declaration();
} else {
return nullptr;
}
}
void
nsCSSPageStyleDeclaration::GetCSSParsingEnvironment(CSSParsingEnvironment& aCSSParseEnv)
{
GetCSSParsingEnvironmentForRule(mRule, aCSSParseEnv);
}
nsDOMCSSDeclaration::ServoCSSParsingEnvironment
nsCSSPageStyleDeclaration::GetServoCSSParsingEnvironment() const
{
MOZ_CRASH("GetURLData shouldn't be calling on a Gecko rule");
}
NS_IMETHODIMP
nsCSSPageStyleDeclaration::GetParentRule(nsIDOMCSSRule** aParent)
{
NS_ENSURE_ARG_POINTER(aParent);
NS_IF_ADDREF(*aParent = mRule);
return NS_OK;
}
nsresult
nsCSSPageStyleDeclaration::SetCSSDeclaration(DeclarationBlock* aDecl)
{
MOZ_ASSERT(aDecl, "must be non-null");
mRule->ChangeDeclaration(aDecl->AsGecko());
return NS_OK;
}
nsIDocument*
nsCSSPageStyleDeclaration::DocToUpdate()
{
return nullptr;
}
nsINode*
nsCSSPageStyleDeclaration::GetParentObject()
{
return mRule ? mRule->GetDocument() : nullptr;
}
// -------------------------------------------
// nsCSSPageRule
//
nsCSSPageRule::nsCSSPageRule(const nsCSSPageRule& aCopy)
// copy everything except our reference count and mDOMDeclaration
: dom::CSSPageRule(aCopy)
, mDeclaration(new css::Declaration(*aCopy.mDeclaration))
{
mDeclaration->SetOwningRule(this);
}
nsCSSPageRule::~nsCSSPageRule()
{
mDeclaration->SetOwningRule(nullptr);
if (mDOMDeclaration) {
mDOMDeclaration->DropReference();
}
}
/* virtual */ already_AddRefed<css::Rule>
nsCSSPageRule::Clone() const
{
RefPtr<css::Rule> clone = new nsCSSPageRule(*this);
return clone.forget();
}
NS_IMPL_ADDREF_INHERITED(nsCSSPageRule, dom::CSSPageRule)
NS_IMPL_RELEASE_INHERITED(nsCSSPageRule, dom::CSSPageRule)
NS_IMPL_CYCLE_COLLECTION_CLASS(nsCSSPageRule)
NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN_INHERITED(nsCSSPageRule,
dom::CSSPageRule)
if (tmp->mDOMDeclaration) {
tmp->mDOMDeclaration->DropReference();
tmp->mDOMDeclaration = nullptr;
}
NS_IMPL_CYCLE_COLLECTION_UNLINK_END
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(nsCSSPageRule,
dom::CSSPageRule)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE(mDOMDeclaration)
NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END
bool
nsCSSPageRule::IsCCLeaf() const
{
// Let's not worry about figuring out whether we're a leaf or not.
return false;
}
// QueryInterface implementation for nsCSSPageRule
NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION_INHERITED(nsCSSPageRule)
NS_INTERFACE_MAP_END_INHERITING(dom::CSSPageRule)
#ifdef DEBUG
void
nsCSSPageRule::List(FILE* out, int32_t aIndent) const
{
nsAutoCString str;
for (int32_t indent = aIndent; --indent >= 0; ) {
str.AppendLiteral(" ");
}
str.AppendLiteral("@page { ");
nsAutoString tmp;
mDeclaration->ToString(tmp);
AppendUTF16toUTF8(tmp, str);
str.AppendLiteral("}\n");
fprintf_stderr(out, "%s", str.get());
}
#endif
void
nsCSSPageRule::GetCssTextImpl(nsAString& aCssText) const
{
aCssText.AppendLiteral("@page { ");
nsAutoString tmp;
mDeclaration->ToString(tmp);
aCssText.Append(tmp);
aCssText.AppendLiteral(" }");
}
nsICSSDeclaration*
nsCSSPageRule::Style()
{
if (!mDOMDeclaration) {
mDOMDeclaration = new nsCSSPageStyleDeclaration(this);
}
return mDOMDeclaration;
}
void
nsCSSPageRule::ChangeDeclaration(css::Declaration* aDeclaration)
{
if (aDeclaration != mDeclaration) {
mDeclaration->SetOwningRule(nullptr);
mDeclaration = aDeclaration;
mDeclaration->SetOwningRule(this);
}
if (StyleSheet* sheet = GetStyleSheet()) {
sheet->AsGecko()->SetModifiedByChildRule();
}
}
/* virtual */ size_t
nsCSSPageRule::SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const
{
return aMallocSizeOf(this);
}
namespace mozilla {
CSSSupportsRule::CSSSupportsRule(bool aConditionMet,
const nsString& aCondition,
uint32_t aLineNumber, uint32_t aColumnNumber)
: dom::CSSSupportsRule(aLineNumber, aColumnNumber)
, mUseGroup(aConditionMet)
, mCondition(aCondition)
{
}
CSSSupportsRule::~CSSSupportsRule()
{
}
CSSSupportsRule::CSSSupportsRule(const CSSSupportsRule& aCopy)
: dom::CSSSupportsRule(aCopy),
mUseGroup(aCopy.mUseGroup),
mCondition(aCopy.mCondition)
{
}
#ifdef DEBUG
/* virtual */ void
CSSSupportsRule::List(FILE* out, int32_t aIndent) const
{
nsAutoCString indentStr;
for (int32_t indent = aIndent; --indent >= 0; ) {
indentStr.AppendLiteral(" ");
}
fprintf_stderr(out, "%s@supports %s {\n",
indentStr.get(), NS_ConvertUTF16toUTF8(mCondition).get());
css::GroupRule::List(out, aIndent);
fprintf_stderr(out, "%s}\n", indentStr.get());
}
#endif
/* virtual */ already_AddRefed<mozilla::css::Rule>
CSSSupportsRule::Clone() const
{
RefPtr<css::Rule> clone = new CSSSupportsRule(*this);
return clone.forget();
}
/* virtual */ bool
CSSSupportsRule::UseForPresentation(nsPresContext* aPresContext,
nsMediaQueryResultCacheKey& aKey)
{
return mUseGroup;
}
NS_IMPL_ADDREF_INHERITED(mozilla::CSSSupportsRule, dom::CSSSupportsRule)
NS_IMPL_RELEASE_INHERITED(mozilla::CSSSupportsRule, dom::CSSSupportsRule)
// QueryInterface implementation for CSSSupportsRule
NS_INTERFACE_MAP_BEGIN(CSSSupportsRule)
NS_INTERFACE_MAP_END_INHERITING(dom::CSSSupportsRule)
void
CSSSupportsRule::GetCssTextImpl(nsAString& aCssText) const
{
aCssText.AssignLiteral("@supports ");
aCssText.Append(mCondition);
css::GroupRule::AppendRulesToCssText(aCssText);
}
// nsIDOMCSSConditionRule methods
NS_IMETHODIMP
CSSSupportsRule::GetConditionText(nsAString& aConditionText)
{
aConditionText.Assign(mCondition);
return NS_OK;
}
NS_IMETHODIMP
CSSSupportsRule::SetConditionText(const nsAString& aConditionText)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
/* virtual */ size_t
CSSSupportsRule::SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const
{
size_t n = aMallocSizeOf(this);
n += css::GroupRule::SizeOfExcludingThis(aMallocSizeOf);
n += mCondition.SizeOfExcludingThisIfUnshared(aMallocSizeOf);
return n;
}
} // namespace mozilla
// -------------------------------------------
// nsCSSCounterStyleRule
//
nsCSSCounterStyleRule::nsCSSCounterStyleRule(const nsCSSCounterStyleRule& aCopy)
: Rule(aCopy)
, mName(aCopy.mName)
, mGeneration(aCopy.mGeneration)
{
for (size_t i = 0; i < ArrayLength(mValues); ++i) {
mValues[i] = aCopy.mValues[i];
}
}
nsCSSCounterStyleRule::~nsCSSCounterStyleRule()
{
}
/* virtual */ already_AddRefed<css::Rule>
nsCSSCounterStyleRule::Clone() const
{
RefPtr<css::Rule> clone = new nsCSSCounterStyleRule(*this);
return clone.forget();
}
nsCSSCounterStyleRule::Getter const
nsCSSCounterStyleRule::kGetters[] = {
#define CSS_COUNTER_DESC(name_, method_) &nsCSSCounterStyleRule::Get##method_,
#include "nsCSSCounterDescList.h"
#undef CSS_COUNTER_DESC
};
NS_IMPL_ADDREF_INHERITED(nsCSSCounterStyleRule, mozilla::css::Rule)
NS_IMPL_RELEASE_INHERITED(nsCSSCounterStyleRule, mozilla::css::Rule)
// QueryInterface implementation for nsCSSCounterStyleRule
// If this ever gets its own cycle-collection bits, reevaluate our IsCCLeaf
// implementation.
NS_INTERFACE_MAP_BEGIN(nsCSSCounterStyleRule)
NS_INTERFACE_MAP_ENTRY(nsIDOMCSSCounterStyleRule)
NS_INTERFACE_MAP_END_INHERITING(mozilla::css::Rule)
bool
nsCSSCounterStyleRule::IsCCLeaf() const
{
return Rule::IsCCLeaf();
}
#ifdef DEBUG
void
nsCSSCounterStyleRule::List(FILE* out, int32_t aIndent) const
{
nsCString baseInd, descInd;
for (int32_t indent = aIndent; --indent >= 0; ) {
baseInd.AppendLiteral(" ");
}
descInd = baseInd;
descInd.AppendLiteral(" ");
nsDependentAtomString name(mName);
fprintf_stderr(out, "%s@counter-style %s (rev.%u) {\n",
baseInd.get(), NS_ConvertUTF16toUTF8(name).get(),
mGeneration);
// TODO
fprintf_stderr(out, "%s}\n", baseInd.get());
}
#endif
/* virtual */ int32_t
nsCSSCounterStyleRule::GetType() const
{
return Rule::COUNTER_STYLE_RULE;
}
uint16_t
nsCSSCounterStyleRule::Type() const
{
return nsIDOMCSSRule::COUNTER_STYLE_RULE;
}
void
nsCSSCounterStyleRule::GetCssTextImpl(nsAString& aCssText) const
{
aCssText.AssignLiteral(u"@counter-style ");
nsDependentAtomString name(mName);
nsStyleUtil::AppendEscapedCSSIdent(name, aCssText);
aCssText.AppendLiteral(u" {\n");
for (nsCSSCounterDesc id = nsCSSCounterDesc(0);
id < eCSSCounterDesc_COUNT;
id = nsCSSCounterDesc(id + 1)) {
if (mValues[id].GetUnit() != eCSSUnit_Null) {
nsAutoString tmp;
// This is annoying. We want to be a const method, but kGetters stores
// XPCOM method pointers, which aren't const methods. The thing is,
// none of those mutate "this". So it's OK to cast away const here.
(const_cast<nsCSSCounterStyleRule*>(this)->*kGetters[id])(tmp);
aCssText.AppendLiteral(u" ");
AppendASCIItoUTF16(nsCSSProps::GetStringValue(id), aCssText);
aCssText.AppendLiteral(u": ");
aCssText.Append(tmp);
aCssText.AppendLiteral(u";\n");
}
}
aCssText.AppendLiteral(u"}");
}
// nsIDOMCSSCounterStyleRule methods
NS_IMETHODIMP
nsCSSCounterStyleRule::GetName(nsAString& aName)
{
aName.Truncate();
nsDependentAtomString name(mName);
nsStyleUtil::AppendEscapedCSSIdent(name, aName);
return NS_OK;
}
NS_IMETHODIMP
nsCSSCounterStyleRule::SetName(const nsAString& aName)
{
nsCSSParser parser;
if (nsCOMPtr<nsIAtom> name = parser.ParseCounterStyleName(aName, nullptr)) {
nsIDocument* doc = GetDocument();
MOZ_AUTO_DOC_UPDATE(doc, UPDATE_STYLE, true);
mName = name;
if (StyleSheet* sheet = GetStyleSheet()) {
if (sheet->IsGecko()) {
sheet->AsGecko()->SetModifiedByChildRule();
}
if (doc) {
doc->StyleRuleChanged(sheet, this);
}
}
}
return NS_OK;
}
int32_t
nsCSSCounterStyleRule::GetSystem() const
{
const nsCSSValue& system = GetDesc(eCSSCounterDesc_System);
switch (system.GetUnit()) {
case eCSSUnit_Enumerated:
return system.GetIntValue();
case eCSSUnit_Pair:
return system.GetPairValue().mXValue.GetIntValue();
default:
return NS_STYLE_COUNTER_SYSTEM_SYMBOLIC;
}
}
const nsCSSValue&
nsCSSCounterStyleRule::GetSystemArgument() const
{
const nsCSSValue& system = GetDesc(eCSSCounterDesc_System);
MOZ_ASSERT(system.GetUnit() == eCSSUnit_Pair,
"Invalid system value");
return system.GetPairValue().mYValue;
}
void
nsCSSCounterStyleRule::SetDesc(nsCSSCounterDesc aDescID, const nsCSSValue& aValue)
{
MOZ_ASSERT(aDescID >= 0 && aDescID < eCSSCounterDesc_COUNT,
"descriptor ID out of range");
nsIDocument* doc = GetDocument();
MOZ_AUTO_DOC_UPDATE(doc, UPDATE_STYLE, true);
mValues[aDescID] = aValue;
mGeneration++;
if (StyleSheet* sheet = GetStyleSheet()) {
if (sheet->IsGecko()) {
sheet->AsGecko()->SetModifiedByChildRule();
}
if (doc) {
doc->StyleRuleChanged(sheet, this);
}
}
}
NS_IMETHODIMP
nsCSSCounterStyleRule::GetSystem(nsAString& aSystem)
{
const nsCSSValue& value = GetDesc(eCSSCounterDesc_System);
if (value.GetUnit() == eCSSUnit_Null) {
aSystem.Truncate();
return NS_OK;
}
aSystem = NS_ConvertASCIItoUTF16(nsCSSProps::ValueToKeyword(
GetSystem(), nsCSSProps::kCounterSystemKTable));
if (value.GetUnit() == eCSSUnit_Pair) {
aSystem.Append(' ');
GetSystemArgument().AppendToString(
eCSSProperty_UNKNOWN, aSystem, nsCSSValue::eNormalized);
}
return NS_OK;
}
NS_IMETHODIMP
nsCSSCounterStyleRule::GetSymbols(nsAString& aSymbols)
{
const nsCSSValue& value = GetDesc(eCSSCounterDesc_Symbols);
aSymbols.Truncate();
if (value.GetUnit() == eCSSUnit_List) {
for (const nsCSSValueList* item = value.GetListValue();
item; item = item->mNext) {
item->mValue.AppendToString(eCSSProperty_UNKNOWN,
aSymbols,
nsCSSValue::eNormalized);
if (item->mNext) {
aSymbols.Append(' ');
}
}
}
return NS_OK;
}
NS_IMETHODIMP
nsCSSCounterStyleRule::GetAdditiveSymbols(nsAString& aSymbols)
{
const nsCSSValue& value = GetDesc(eCSSCounterDesc_AdditiveSymbols);
aSymbols.Truncate();
if (value.GetUnit() == eCSSUnit_PairList) {
for (const nsCSSValuePairList* item = value.GetPairListValue();
item; item = item->mNext) {
item->mXValue.AppendToString(eCSSProperty_UNKNOWN,
aSymbols, nsCSSValue::eNormalized);
aSymbols.Append(' ');
item->mYValue.AppendToString(eCSSProperty_UNKNOWN,
aSymbols, nsCSSValue::eNormalized);
if (item->mNext) {
aSymbols.AppendLiteral(", ");
}
}
}
return NS_OK;
}
NS_IMETHODIMP
nsCSSCounterStyleRule::GetRange(nsAString& aRange)
{
const nsCSSValue& value = GetDesc(eCSSCounterDesc_Range);
switch (value.GetUnit()) {
case eCSSUnit_Auto:
aRange.AssignLiteral(u"auto");
break;
case eCSSUnit_PairList:
aRange.Truncate();
for (const nsCSSValuePairList* item = value.GetPairListValue();
item; item = item->mNext) {
const nsCSSValue& lower = item->mXValue;
const nsCSSValue& upper = item->mYValue;
if (lower.GetUnit() == eCSSUnit_Enumerated) {
NS_ASSERTION(lower.GetIntValue() ==
NS_STYLE_COUNTER_RANGE_INFINITE,
"Unrecognized keyword");
aRange.AppendLiteral("infinite");
} else {
aRange.AppendInt(lower.GetIntValue());
}
aRange.Append(' ');
if (upper.GetUnit() == eCSSUnit_Enumerated) {
NS_ASSERTION(upper.GetIntValue() ==
NS_STYLE_COUNTER_RANGE_INFINITE,
"Unrecognized keyword");
aRange.AppendLiteral("infinite");
} else {
aRange.AppendInt(upper.GetIntValue());
}
if (item->mNext) {
aRange.AppendLiteral(", ");
}
}
break;
default:
aRange.Truncate();
}
return NS_OK;
}
NS_IMETHODIMP
nsCSSCounterStyleRule::GetSpeakAs(nsAString& aSpeakAs)
{
const nsCSSValue& value = GetDesc(eCSSCounterDesc_SpeakAs);
switch (value.GetUnit()) {
case eCSSUnit_Enumerated:
switch (value.GetIntValue()) {
case NS_STYLE_COUNTER_SPEAKAS_BULLETS:
aSpeakAs.AssignLiteral(u"bullets");
break;
case NS_STYLE_COUNTER_SPEAKAS_NUMBERS:
aSpeakAs.AssignLiteral(u"numbers");
break;
case NS_STYLE_COUNTER_SPEAKAS_WORDS:
aSpeakAs.AssignLiteral(u"words");
break;
case NS_STYLE_COUNTER_SPEAKAS_SPELL_OUT:
aSpeakAs.AssignLiteral(u"spell-out");
break;
default:
NS_NOTREACHED("Unknown speech synthesis");
}
break;
case eCSSUnit_Auto:
case eCSSUnit_AtomIdent:
aSpeakAs.Truncate();
value.AppendToString(eCSSProperty_UNKNOWN,
aSpeakAs, nsCSSValue::eNormalized);
break;
case eCSSUnit_Null:
aSpeakAs.Truncate();
break;
default:
NS_NOTREACHED("Unknown speech synthesis");
aSpeakAs.Truncate();
}
return NS_OK;
}
nsresult
nsCSSCounterStyleRule::GetDescriptor(nsCSSCounterDesc aDescID,
nsAString& aValue)
{
NS_ASSERTION(aDescID == eCSSCounterDesc_Negative ||
aDescID == eCSSCounterDesc_Prefix ||
aDescID == eCSSCounterDesc_Suffix ||
aDescID == eCSSCounterDesc_Pad ||
aDescID == eCSSCounterDesc_Fallback,
"Unexpected descriptor");
const nsCSSValue& value = GetDesc(aDescID);
aValue.Truncate();
if (value.GetUnit() != eCSSUnit_Null) {
value.AppendToString(
eCSSProperty_UNKNOWN, aValue, nsCSSValue::eNormalized);
}
return NS_OK;
}
#define CSS_COUNTER_DESC_GETTER(name_) \
NS_IMETHODIMP \
nsCSSCounterStyleRule::Get##name_(nsAString& a##name_) \
{ \
return GetDescriptor(eCSSCounterDesc_##name_, a##name_);\
}
CSS_COUNTER_DESC_GETTER(Negative)
CSS_COUNTER_DESC_GETTER(Prefix)
CSS_COUNTER_DESC_GETTER(Suffix)
CSS_COUNTER_DESC_GETTER(Pad)
CSS_COUNTER_DESC_GETTER(Fallback)
#undef CSS_COUNTER_DESC_GETTER
/* static */ bool
nsCSSCounterStyleRule::CheckDescValue(int32_t aSystem,
nsCSSCounterDesc aDescID,
const nsCSSValue& aValue)
{
switch (aDescID) {
case eCSSCounterDesc_System:
if (aValue.GetUnit() != eCSSUnit_Pair) {
return aValue.GetIntValue() == aSystem;
} else {
return aValue.GetPairValue().mXValue.GetIntValue() == aSystem;
}
case eCSSCounterDesc_Symbols:
switch (aSystem) {
case NS_STYLE_COUNTER_SYSTEM_NUMERIC:
case NS_STYLE_COUNTER_SYSTEM_ALPHABETIC:
// for these two system, the list must contain at least 2 elements
return aValue.GetListValue()->mNext;
case NS_STYLE_COUNTER_SYSTEM_EXTENDS:
// for extends system, no symbols should be set
return false;
default:
return true;
}
case eCSSCounterDesc_AdditiveSymbols:
switch (aSystem) {
case NS_STYLE_COUNTER_SYSTEM_EXTENDS:
return false;
default:
return true;
}
default:
return true;
}
}
nsresult
nsCSSCounterStyleRule::SetDescriptor(nsCSSCounterDesc aDescID,
const nsAString& aValue)
{
nsCSSParser parser;
nsCSSValue value;
nsIURI* baseURL = nullptr;
nsIPrincipal* principal = nullptr;
if (StyleSheet* sheet = GetStyleSheet()) {
baseURL = sheet->GetBaseURI();
principal = sheet->Principal();
}
if (parser.ParseCounterDescriptor(aDescID, aValue, nullptr,
baseURL, principal, value)) {
if (CheckDescValue(GetSystem(), aDescID, value)) {
SetDesc(aDescID, value);
}
}
return NS_OK;
}
#define CSS_COUNTER_DESC_SETTER(name_) \
NS_IMETHODIMP \
nsCSSCounterStyleRule::Set##name_(const nsAString& a##name_) \
{ \
return SetDescriptor(eCSSCounterDesc_##name_, a##name_); \
}
CSS_COUNTER_DESC_SETTER(System)
CSS_COUNTER_DESC_SETTER(Symbols)
CSS_COUNTER_DESC_SETTER(AdditiveSymbols)
CSS_COUNTER_DESC_SETTER(Negative)
CSS_COUNTER_DESC_SETTER(Prefix)
CSS_COUNTER_DESC_SETTER(Suffix)
CSS_COUNTER_DESC_SETTER(Range)
CSS_COUNTER_DESC_SETTER(Pad)
CSS_COUNTER_DESC_SETTER(Fallback)
CSS_COUNTER_DESC_SETTER(SpeakAs)
#undef CSS_COUNTER_DESC_SETTER
/* virtual */ size_t
nsCSSCounterStyleRule::SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const
{
return aMallocSizeOf(this);
}
/* virtual */ JSObject*
nsCSSCounterStyleRule::WrapObject(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto)
{
return CSSCounterStyleRuleBinding::Wrap(aCx, this, aGivenProto);
}
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