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- /* -*- Mode: C++; tab-width: 8; 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/. */
- #ifndef mozilla_css_SheetParsingMode_h
- #define mozilla_css_SheetParsingMode_h
- namespace mozilla {
- namespace css {
- /**
- * Enum defining the mode in which a sheet is to be parsed. This is
- * usually, but not always, the same as the cascade level at which the
- * sheet will apply (see nsStyleSet.h). Most of the Loader APIs only
- * support loading of author sheets.
- *
- * Author sheets are the normal case: styles embedded in or linked
- * from HTML pages. They are also the most restricted.
- *
- * User sheets can do anything author sheets can do, and also get
- * access to a few CSS extensions that are not yet suitable for
- * exposure on the public Web, but are very useful for expressing
- * user style overrides, such as @-moz-document rules.
- *
- * Agent sheets have access to all author- and user-sheet features
- * plus more extensions that are necessary for internal use but,
- * again, not yet suitable for exposure on the public Web. Some of
- * these are outright unsafe to expose; in particular, incorrect
- * styling of anonymous box pseudo-elements can violate layout
- * invariants.
- */
- enum SheetParsingMode {
- eAuthorSheetFeatures = 0,
- eUserSheetFeatures,
- eAgentSheetFeatures
- };
- } // namespace css
- } // namespace mozilla
- #endif // mozilla_css_SheetParsingMode_h
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