gecko-dev/layout/style/SheetType.h

54 строки
1.2 KiB
C++

/* -*- 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 to represent a level in the cascade */
#ifndef mozilla_SheetType_h
#define mozilla_SheetType_h
#include <stdint.h>
namespace mozilla {
// The "origins" of the CSS cascade, from lowest precedence to
// highest (for non-!important rules).
//
// Be sure to update NS_RULE_NODE_LEVEL_MASK when changing the number
// of sheet types; static assertions enforce this.
enum class SheetType : uint8_t {
Agent, // CSS
User, // CSS
PresHint,
Doc, // CSS
StyleAttr,
Override, // CSS
Animation,
Transition,
Count,
Unknown = 0xff
};
// Returns whether aSheetType represents a level of the cascade that uses
// a StyleSheet object.
inline bool
IsCSSSheetType(SheetType aSheetType)
{
switch (aSheetType) {
case SheetType::Agent:
case SheetType::User:
case SheetType::Doc:
case SheetType::Override:
return true;
default:
return false;
}
}
} // namespace mozilla
#endif // mozilla_SheetType_h