/* 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_ScrollStyles_h #define mozilla_ScrollStyles_h #include // Forward declarations struct nsStyleDisplay; namespace mozilla { enum class StyleOverflow : uint8_t; struct ScrollStyles { // Always one of Scroll, Hidden, or Auto. StyleOverflow mHorizontal; StyleOverflow mVertical; ScrollStyles(StyleOverflow aH, StyleOverflow aV); // NOTE: This ctor maps `visible` to `auto` and `clip` to `hidden`. // It's used for styles that are propagated from the and for // scroll frames (which we create also for overflow:clip/visible in // some cases, e.g. form controls). enum MapOverflowToValidScrollStyleTag { MapOverflowToValidScrollStyle }; ScrollStyles(const nsStyleDisplay&, MapOverflowToValidScrollStyleTag); bool operator==(const ScrollStyles&) const = default; bool operator!=(const ScrollStyles&) const = default; bool IsHiddenInBothDirections() const; }; } // namespace mozilla #endif // mozilla_ScrollStyles_h