diff options
Diffstat (limited to 'layout/style/CSSFontFaceRule.cpp')
| -rw-r--r-- | layout/style/CSSFontFaceRule.cpp | 225 |
1 files changed, 225 insertions, 0 deletions
diff --git a/layout/style/CSSFontFaceRule.cpp b/layout/style/CSSFontFaceRule.cpp new file mode 100644 index 0000000000..924ea4edbd --- /dev/null +++ b/layout/style/CSSFontFaceRule.cpp @@ -0,0 +1,225 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set ts=8 sts=2 et sw=2 tw=80: */ +/* 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/. */ + +#include "mozilla/dom/CSSFontFaceRule.h" + +#include "mozilla/dom/CSSFontFaceRuleBinding.h" +#include "mozilla/dom/CSSStyleDeclarationBinding.h" +#include "mozilla/ServoBindings.h" +#include "nsCSSProps.h" + +using namespace mozilla; +using namespace mozilla::dom; + +// ------------------------------------------- +// CSSFontFaceRuleDecl and related routines +// + +// QueryInterface implementation for CSSFontFaceRuleDecl +NS_INTERFACE_MAP_BEGIN(CSSFontFaceRuleDecl) + NS_WRAPPERCACHE_INTERFACE_MAP_ENTRY + 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(CSSFontFaceRuleDecl, ContainingRule()) +NS_IMPL_RELEASE_USING_AGGREGATOR(CSSFontFaceRuleDecl, ContainingRule()) + +void CSSFontFaceRuleDecl::SetRawAfterClone( + RefPtr<StyleLockedFontFaceRule> aRaw) { + mRawRule = std::move(aRaw); +} + +// helper for string GetPropertyValue and RemovePropertyValue +void CSSFontFaceRuleDecl::GetPropertyValue(nsCSSFontDesc aFontDescID, + nsACString& aResult) const { + MOZ_ASSERT(aResult.IsEmpty()); + Servo_FontFaceRule_GetDescriptorCssText(mRawRule, aFontDescID, &aResult); +} + +void CSSFontFaceRuleDecl::GetCssText(nsACString& aCssText) { + MOZ_ASSERT(aCssText.IsEmpty()); + Servo_FontFaceRule_GetDeclCssText(mRawRule, &aCssText); +} + +void CSSFontFaceRuleDecl::SetCssText(const nsACString& aCssText, + nsIPrincipal* aSubjectPrincipal, + ErrorResult& aRv) { + if (ContainingRule()->IsReadOnly()) { + return; + } + // bug 443978 + aRv.ThrowNotSupportedError( + "Can't set cssText on CSSFontFaceRule declarations"); +} + +NS_IMETHODIMP +CSSFontFaceRuleDecl::GetPropertyValue(const nsACString& aPropName, + nsACString& aResult) { + aResult.Truncate(); + nsCSSFontDesc descID = nsCSSProps::LookupFontDesc(aPropName); + if (descID != eCSSFontDesc_UNKNOWN) { + GetPropertyValue(descID, aResult); + } + return NS_OK; +} + +void CSSFontFaceRuleDecl::RemoveProperty(const nsACString& aPropName, + nsACString& aResult, + ErrorResult& aRv) { + nsCSSFontDesc descID = nsCSSProps::LookupFontDesc(aPropName); + NS_ASSERTION(descID >= eCSSFontDesc_UNKNOWN && descID < eCSSFontDesc_COUNT, + "LookupFontDesc returned value out of range"); + + if (ContainingRule()->IsReadOnly()) { + return; + } + + aResult.Truncate(); + if (descID != eCSSFontDesc_UNKNOWN) { + GetPropertyValue(descID, aResult); + Servo_FontFaceRule_ResetDescriptor(mRawRule, descID); + } +} + +void CSSFontFaceRuleDecl::GetPropertyPriority(const nsACString& aPropName, + nsACString& aResult) { + // font descriptors do not have priorities at present + aResult.Truncate(); +} + +void CSSFontFaceRuleDecl::SetProperty(const nsACString& aPropName, + const nsACString& aValue, + const nsACString& aPriority, + nsIPrincipal* aSubjectPrincipal, + ErrorResult& aRv) { + // FIXME(heycam): If we are changing unicode-range, then a FontFace object + // representing this rule must have its mUnicodeRange value invalidated. + + if (ContainingRule()->IsReadOnly()) { + return; + } + + // bug 443978 + aRv.ThrowNotSupportedError( + "Can't set properties on CSSFontFaceRule declarations"); +} + +uint32_t CSSFontFaceRuleDecl::Length() { + return Servo_FontFaceRule_Length(mRawRule); +} + +void CSSFontFaceRuleDecl::IndexedGetter(uint32_t aIndex, bool& aFound, + nsACString& aResult) { + nsCSSFontDesc id = Servo_FontFaceRule_IndexGetter(mRawRule, aIndex); + if (id != eCSSFontDesc_UNKNOWN) { + aFound = true; + aResult.Assign(nsCSSProps::GetStringValue(id)); + } else { + aFound = false; + } +} + +css::Rule* CSSFontFaceRuleDecl::GetParentRule() { return ContainingRule(); } + +nsINode* CSSFontFaceRuleDecl::GetAssociatedNode() const { + return ContainingRule()->GetAssociatedDocumentOrShadowRoot(); +} + +nsISupports* CSSFontFaceRuleDecl::GetParentObject() const { + return ContainingRule()->GetParentObject(); +} + +JSObject* CSSFontFaceRuleDecl::WrapObject(JSContext* cx, + JS::Handle<JSObject*> aGivenProto) { + // If this changes to use a different type, remove the 'concrete' + // annotation from CSSStyleDeclaration. + return CSSStyleDeclaration_Binding::Wrap(cx, this, aGivenProto); +} + +// ------------------------------------------- +// CSSFontFaceRule +// + +NS_IMPL_CYCLE_COLLECTION_CLASS(CSSFontFaceRule) + +NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN_INHERITED(CSSFontFaceRule, + 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(CSSFontFaceRule) + // Keep this in sync with IsCCLeaf. + + // Unlink the wrapper for our declaration. + // + // Note that this has to happen before unlinking css::Rule. + tmp->UnlinkDeclarationWrapper(tmp->mDecl); +NS_IMPL_CYCLE_COLLECTION_UNLINK_END_INHERITED(mozilla::css::Rule) + +NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN_INHERITED(CSSFontFaceRule, + mozilla::css::Rule) + // Keep this in sync with IsCCLeaf. +NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END + +bool CSSFontFaceRule::IsCCLeaf() const { + if (!Rule::IsCCLeaf()) { + return false; + } + + return !mDecl.PreservingWrapper(); +} + +NS_IMPL_ISUPPORTS_CYCLE_COLLECTION_INHERITED_0(CSSFontFaceRule, + mozilla::css::Rule) + +#ifdef DEBUG +void CSSFontFaceRule::List(FILE* out, int32_t aIndent) const { + nsAutoCString str; + for (int32_t i = 0; i < aIndent; i++) { + str.AppendLiteral(" "); + } + Servo_FontFaceRule_Debug(Raw(), &str); + fprintf_stderr(out, "%s\n", str.get()); +} +#endif + +StyleCssRuleType CSSFontFaceRule::Type() const { + return StyleCssRuleType::FontFace; +} + +void CSSFontFaceRule::SetRawAfterClone(RefPtr<StyleLockedFontFaceRule> aRaw) { + mDecl.SetRawAfterClone(std::move(aRaw)); +} + +void CSSFontFaceRule::GetCssText(nsACString& aCssText) const { + aCssText.Truncate(); + Servo_FontFaceRule_GetCssText(Raw(), &aCssText); +} + +nsICSSDeclaration* CSSFontFaceRule::Style() { return &mDecl; } + +/* virtual */ +size_t CSSFontFaceRule::SizeOfIncludingThis(MallocSizeOf aMallocSizeOf) const { + return aMallocSizeOf(this); +} + +/* virtual */ +JSObject* CSSFontFaceRule::WrapObject(JSContext* aCx, + JS::Handle<JSObject*> aGivenProto) { + return CSSFontFaceRule_Binding::Wrap(aCx, this, aGivenProto); +} |