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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /layout/style/nsCSSPseudoElements.cpp
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
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diff --git a/layout/style/nsCSSPseudoElements.cpp b/layout/style/nsCSSPseudoElements.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/. */
+
+/* atom list for CSS pseudo-elements */
+
+#include "mozilla/ArrayUtils.h"
+
+#include "nsCSSPseudoElements.h"
+#include "nsAtomListUtils.h"
+#include "nsStaticAtom.h"
+#include "nsCSSAnonBoxes.h"
+
+using namespace mozilla;
+
+// define storage for all atoms
+#define CSS_PSEUDO_ELEMENT(name_, value_, flags_) \
+ nsICSSPseudoElement* nsCSSPseudoElements::name_;
+#include "nsCSSPseudoElementList.h"
+#undef CSS_PSEUDO_ELEMENT
+
+#define CSS_PSEUDO_ELEMENT(name_, value_, flags_) \
+ NS_STATIC_ATOM_BUFFER(name_##_pseudo_element_buffer, value_)
+#include "nsCSSPseudoElementList.h"
+#undef CSS_PSEUDO_ELEMENT
+
+// Array of nsStaticAtom for each of the pseudo-elements.
+static const nsStaticAtom CSSPseudoElements_info[] = {
+#define CSS_PSEUDO_ELEMENT(name_, value_, flags_) \
+ NS_STATIC_ATOM(name_##_pseudo_element_buffer, (nsIAtom**)&nsCSSPseudoElements::name_),
+#include "nsCSSPseudoElementList.h"
+#undef CSS_PSEUDO_ELEMENT
+};
+
+// Flags data for each of the pseudo-elements, which must be separate
+// from the previous array since there's no place for it in
+// nsStaticAtom.
+/* static */ const uint32_t
+nsCSSPseudoElements::kPseudoElementFlags[] = {
+#define CSS_PSEUDO_ELEMENT(name_, value_, flags_) \
+ flags_,
+#include "nsCSSPseudoElementList.h"
+#undef CSS_PSEUDO_ELEMENT
+};
+
+void nsCSSPseudoElements::AddRefAtoms()
+{
+ NS_RegisterStaticAtoms(CSSPseudoElements_info);
+}
+
+bool nsCSSPseudoElements::IsPseudoElement(nsIAtom *aAtom)
+{
+ return nsAtomListUtils::IsMember(aAtom, CSSPseudoElements_info,
+ ArrayLength(CSSPseudoElements_info));
+}
+
+/* static */ bool
+nsCSSPseudoElements::IsCSS2PseudoElement(nsIAtom *aAtom)
+{
+ // We don't implement this using PseudoElementHasFlags because callers
+ // want to pass things that could be anon boxes.
+ NS_ASSERTION(nsCSSPseudoElements::IsPseudoElement(aAtom) ||
+ nsCSSAnonBoxes::IsAnonBox(aAtom),
+ "must be pseudo element or anon box");
+ bool result = aAtom == nsCSSPseudoElements::after ||
+ aAtom == nsCSSPseudoElements::before ||
+ aAtom == nsCSSPseudoElements::firstLetter ||
+ aAtom == nsCSSPseudoElements::firstLine;
+ NS_ASSERTION(nsCSSAnonBoxes::IsAnonBox(aAtom) ||
+ result == PseudoElementHasFlags(
+ GetPseudoType(aAtom, EnabledState::eIgnoreEnabledState),
+ CSS_PSEUDO_ELEMENT_IS_CSS2),
+ "result doesn't match flags");
+ return result;
+}
+
+/* static */ CSSPseudoElementType
+nsCSSPseudoElements::GetPseudoType(nsIAtom *aAtom, EnabledState aEnabledState)
+{
+ for (CSSPseudoElementTypeBase i = 0;
+ i < ArrayLength(CSSPseudoElements_info);
+ ++i) {
+ if (*CSSPseudoElements_info[i].mAtom == aAtom) {
+ auto type = static_cast<Type>(i);
+ // ::moz-placeholder is an alias for ::placeholder
+ if (type == CSSPseudoElementType::mozPlaceholder) {
+ type = CSSPseudoElementType::placeholder;
+ }
+ return IsEnabled(type, aEnabledState) ? type : Type::NotPseudo;
+ }
+ }
+
+ if (nsCSSAnonBoxes::IsAnonBox(aAtom)) {
+#ifdef MOZ_XUL
+ if (nsCSSAnonBoxes::IsTreePseudoElement(aAtom)) {
+ return Type::XULTree;
+ }
+#endif
+
+ return Type::AnonBox;
+ }
+
+ return Type::NotPseudo;
+}
+
+/* static */ nsIAtom*
+nsCSSPseudoElements::GetPseudoAtom(Type aType)
+{
+ NS_ASSERTION(aType < Type::Count, "Unexpected type");
+ return *CSSPseudoElements_info[
+ static_cast<CSSPseudoElementTypeBase>(aType)].mAtom;
+}
+
+/* static */ bool
+nsCSSPseudoElements::PseudoElementSupportsUserActionState(const Type aType)
+{
+ return PseudoElementHasFlags(aType,
+ CSS_PSEUDO_ELEMENT_SUPPORTS_USER_ACTION_STATE);
+}