1 files changed, 39 insertions, 0 deletions
diff --git a/layout/style/CSSEnabledState.h b/layout/style/CSSEnabledState.h
new file mode 100644
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+++ b/layout/style/CSSEnabledState.h
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+/* -*- 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/. */
+
+/*
+ * enum for whether a CSS feature (property, pseudo-class, etc.) is
+ * enabled in a specific context
+ */
+
+#ifndef mozilla_CSSEnabledState_h
+#define mozilla_CSSEnabledState_h
+
+#include "mozilla/TypedEnumBits.h"
+
+namespace mozilla {
+
+enum class CSSEnabledState
+{
+  // The default CSSEnabledState: only enable what's enabled for all
+  // content, given the current values of preferences.
+  eForAllContent = 0,
+  // Enable features available in UA sheets.
+  eInUASheets = 0x01,
+  // Enable features available in chrome code.
+  eInChrome = 0x02,
+  // Special value to unconditionally enable everything. This implies
+  // all the bits above, but is strictly more than just their OR-ed
+  // union. This just skips any test so a feature will be enabled even
+  // if it would have been disabled with all the bits above set.
+  eIgnoreEnabledState = 0xff
+};
+
+MOZ_MAKE_ENUM_CLASS_BITWISE_OPERATORS(CSSEnabledState)
+
+} // namespace mozilla
+
+#endif // mozilla_CSSEnabledState_h