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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/nsCSSPseudoClasses.cpp
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
Diffstat (limited to 'layout/style/nsCSSPseudoClasses.cpp')
-rw-r--r--layout/style/nsCSSPseudoClasses.cpp131
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diff --git a/layout/style/nsCSSPseudoClasses.cpp b/layout/style/nsCSSPseudoClasses.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-classes */
+
+#include "mozilla/ArrayUtils.h"
+
+#include "nsCSSPseudoClasses.h"
+#include "nsStaticAtom.h"
+#include "mozilla/Preferences.h"
+#include "nsString.h"
+
+using namespace mozilla;
+
+// define storage for all atoms
+#define CSS_PSEUDO_CLASS(_name, _value, _flags, _pref) \
+ static nsIAtom* sPseudoClass_##_name;
+#include "nsCSSPseudoClassList.h"
+#undef CSS_PSEUDO_CLASS
+
+#define CSS_PSEUDO_CLASS(name_, value_, flags_, pref_) \
+ NS_STATIC_ATOM_BUFFER(name_##_pseudo_class_buffer, value_)
+#include "nsCSSPseudoClassList.h"
+#undef CSS_PSEUDO_CLASS
+
+#define CSS_PSEUDO_CLASS(name_, value_, flags_, pref_) \
+ static_assert(!((flags_) & CSS_PSEUDO_CLASS_ENABLED_IN_CHROME) || \
+ ((flags_) & CSS_PSEUDO_CLASS_ENABLED_IN_UA_SHEETS), \
+ "Pseudo-class '" #name_ "' is enabled in chrome, so it " \
+ "should also be enabled in UA sheets");
+#include "nsCSSPseudoClassList.h"
+#undef CSS_PSEUDO_CLASS
+
+// Array of nsStaticAtom for each of the pseudo-classes.
+static const nsStaticAtom CSSPseudoClasses_info[] = {
+#define CSS_PSEUDO_CLASS(name_, value_, flags_, pref_) \
+ NS_STATIC_ATOM(name_##_pseudo_class_buffer, &sPseudoClass_##name_),
+#include "nsCSSPseudoClassList.h"
+#undef CSS_PSEUDO_CLASS
+};
+
+// Flags data for each of the pseudo-classes, which must be separate
+// from the previous array since there's no place for it in
+// nsStaticAtom.
+/* static */ const uint32_t
+nsCSSPseudoClasses::kPseudoClassFlags[] = {
+#define CSS_PSEUDO_CLASS(name_, value_, flags_, pref_) \
+ flags_,
+#include "nsCSSPseudoClassList.h"
+#undef CSS_PSEUDO_CLASS
+};
+
+/* static */ bool
+nsCSSPseudoClasses::sPseudoClassEnabled[] = {
+// If the pseudo class has any "ENABLED_IN" flag set, it is disabled by
+// default. Note that, if a pseudo class has pref, whatever its default
+// value is, it'll later be changed in nsCSSPseudoClasses::AddRefAtoms()
+// If the pseudo class has "ENABLED_IN" flags but doesn't have a pref,
+// it is an internal pseudo class which is disabled elsewhere.
+#define IS_ENABLED_BY_DEFAULT(flags_) \
+ (!((flags_) & CSS_PSEUDO_CLASS_ENABLED_MASK))
+#define CSS_PSEUDO_CLASS(name_, value_, flags_, pref_) \
+ IS_ENABLED_BY_DEFAULT(flags_),
+#include "nsCSSPseudoClassList.h"
+#undef CSS_PSEUDO_CLASS
+#undef IS_ENABLED_BY_DEFAULT
+};
+
+void nsCSSPseudoClasses::AddRefAtoms()
+{
+ NS_RegisterStaticAtoms(CSSPseudoClasses_info);
+
+#define CSS_PSEUDO_CLASS(name_, value_, flags_, pref_) \
+ if (pref_[0]) { \
+ auto idx = static_cast<CSSPseudoElementTypeBase>(Type::name_); \
+ Preferences::AddBoolVarCache(&sPseudoClassEnabled[idx], pref_); \
+ }
+#include "nsCSSPseudoClassList.h"
+#undef CSS_PSEUDO_CLASS
+}
+
+bool
+nsCSSPseudoClasses::HasStringArg(Type aType)
+{
+ return aType == Type::lang ||
+ aType == Type::mozEmptyExceptChildrenWithLocalname ||
+ aType == Type::mozSystemMetric ||
+ aType == Type::mozLocaleDir ||
+ aType == Type::mozDir ||
+ aType == Type::dir;
+}
+
+bool
+nsCSSPseudoClasses::HasNthPairArg(Type aType)
+{
+ return aType == Type::nthChild ||
+ aType == Type::nthLastChild ||
+ aType == Type::nthOfType ||
+ aType == Type::nthLastOfType;
+}
+
+void
+nsCSSPseudoClasses::PseudoTypeToString(Type aType, nsAString& aString)
+{
+ MOZ_ASSERT(aType < Type::Count, "Unexpected type");
+ auto idx = static_cast<CSSPseudoClassTypeBase>(aType);
+ (*CSSPseudoClasses_info[idx].mAtom)->ToString(aString);
+}
+
+/* static */ CSSPseudoClassType
+nsCSSPseudoClasses::GetPseudoType(nsIAtom* aAtom, EnabledState aEnabledState)
+{
+ for (uint32_t i = 0; i < ArrayLength(CSSPseudoClasses_info); ++i) {
+ if (*CSSPseudoClasses_info[i].mAtom == aAtom) {
+ Type type = Type(i);
+ return IsEnabled(type, aEnabledState) ? type : Type::NotPseudo;
+ }
+ }
+ return Type::NotPseudo;
+}
+
+/* static */ bool
+nsCSSPseudoClasses::IsUserActionPseudoClass(Type aType)
+{
+ // See http://dev.w3.org/csswg/selectors4/#useraction-pseudos
+ return aType == Type::hover ||
+ aType == Type::active ||
+ aType == Type::focus;
+}