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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.h
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
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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 */
+
+#ifndef nsCSSPseudoClasses_h___
+#define nsCSSPseudoClasses_h___
+
+#include "nsStringFwd.h"
+
+// The following two flags along with the pref defines where this pseudo
+// class can be used:
+// * If none of the two flags is presented, the pref completely controls
+// the availability of this pseudo class. And in that case, if it has
+// no pref, this property is usable everywhere.
+// * If any of the flags is set, this pseudo class is always enabled in
+// the specific contexts regardless of the value of the pref. If there
+// is no pref for this pseudo class at all in this case, it is an
+// internal-only pseudo class, which cannot be used anywhere else.
+#define CSS_PSEUDO_CLASS_ENABLED_MASK (3<<0)
+#define CSS_PSEUDO_CLASS_ENABLED_IN_UA_SHEETS (1<<0)
+#define CSS_PSEUDO_CLASS_ENABLED_IN_CHROME (1<<1)
+#define CSS_PSEUDO_CLASS_ENABLED_IN_UA_SHEETS_AND_CHROME \
+ (CSS_PSEUDO_CLASS_ENABLED_IN_UA_SHEETS | CSS_PSEUDO_CLASS_ENABLED_IN_CHROME)
+
+class nsIAtom;
+
+namespace mozilla {
+
+// The total count of CSSPseudoClassType is less than 256,
+// so use uint8_t as its underlying type.
+typedef uint8_t CSSPseudoClassTypeBase;
+enum class CSSPseudoClassType : CSSPseudoClassTypeBase
+{
+#define CSS_PSEUDO_CLASS(_name, _value, _flags, _pref) \
+ _name,
+#include "nsCSSPseudoClassList.h"
+#undef CSS_PSEUDO_CLASS
+ Count,
+ NotPseudo, // This value MUST be second last! SelectorMatches depends on it.
+ MAX
+};
+
+} // namespace mozilla
+
+class nsCSSPseudoClasses
+{
+ typedef mozilla::CSSPseudoClassType Type;
+ typedef mozilla::CSSEnabledState EnabledState;
+
+public:
+ static void AddRefAtoms();
+
+ static Type GetPseudoType(nsIAtom* aAtom, EnabledState aEnabledState);
+ static bool HasStringArg(Type aType);
+ static bool HasNthPairArg(Type aType);
+ static bool HasSelectorListArg(Type aType) {
+ return aType == Type::any;
+ }
+ static bool IsUserActionPseudoClass(Type aType);
+
+ // Should only be used on types other than Count and NotPseudoClass
+ static void PseudoTypeToString(Type aType, nsAString& aString);
+
+ static bool IsEnabled(Type aType, EnabledState aEnabledState)
+ {
+ auto index = static_cast<size_t>(aType);
+ MOZ_ASSERT(index < static_cast<size_t>(Type::Count));
+ if (sPseudoClassEnabled[index] ||
+ aEnabledState == EnabledState::eIgnoreEnabledState) {
+ return true;
+ }
+ auto flags = kPseudoClassFlags[index];
+ if (((aEnabledState & EnabledState::eInChrome) &&
+ (flags & CSS_PSEUDO_CLASS_ENABLED_IN_CHROME)) ||
+ ((aEnabledState & EnabledState::eInUASheets) &&
+ (flags & CSS_PSEUDO_CLASS_ENABLED_IN_UA_SHEETS))) {
+ return true;
+ }
+ return false;
+ }
+
+private:
+ static const uint32_t kPseudoClassFlags[size_t(Type::Count)];
+ static bool sPseudoClassEnabled[size_t(Type::Count)];
+};
+
+#endif /* nsCSSPseudoClasses_h___ */