/* -*- 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/. */ #ifndef ScrollbarStyles_h #define ScrollbarStyles_h #include <stdint.h> #include "nsStyleConsts.h" // for NS_STYLE_SCROLL_SNAP_* #include "nsStyleCoord.h" // for nsStyleCoord #include "mozilla/dom/WindowBinding.h" // Forward declarations struct nsStyleDisplay; namespace mozilla { struct ScrollbarStyles { // Always one of NS_STYLE_OVERFLOW_SCROLL, NS_STYLE_OVERFLOW_HIDDEN, // or NS_STYLE_OVERFLOW_AUTO. uint8_t mHorizontal; uint8_t mVertical; // Always one of NS_STYLE_SCROLL_BEHAVIOR_AUTO or // NS_STYLE_SCROLL_BEHAVIOR_SMOOTH uint8_t mScrollBehavior; // Always one of NS_STYLE_SCROLL_SNAP_NONE, NS_STYLE_SCROLL_SNAP_MANDATORY, // or NS_STYLE_SCROLL_SNAP_PROXIMITY. uint8_t mScrollSnapTypeX; uint8_t mScrollSnapTypeY; nsStyleCoord mScrollSnapPointsX; nsStyleCoord mScrollSnapPointsY; nsStyleCoord::CalcValue mScrollSnapDestinationX; nsStyleCoord::CalcValue mScrollSnapDestinationY; ScrollbarStyles(uint8_t aH, uint8_t aV) : mHorizontal(aH), mVertical(aV), mScrollBehavior(NS_STYLE_SCROLL_BEHAVIOR_AUTO), mScrollSnapTypeX(NS_STYLE_SCROLL_SNAP_TYPE_NONE), mScrollSnapTypeY(NS_STYLE_SCROLL_SNAP_TYPE_NONE), mScrollSnapPointsX(nsStyleCoord(eStyleUnit_None)), mScrollSnapPointsY(nsStyleCoord(eStyleUnit_None)) { mScrollSnapDestinationX.mPercent = 0; mScrollSnapDestinationX.mLength = nscoord(0.0f); mScrollSnapDestinationX.mHasPercent = false; mScrollSnapDestinationY.mPercent = 0; mScrollSnapDestinationY.mLength = nscoord(0.0f); mScrollSnapDestinationY.mHasPercent = false; } explicit ScrollbarStyles(const nsStyleDisplay* aDisplay); ScrollbarStyles(uint8_t aH, uint8_t aV, const nsStyleDisplay* aDisplay); ScrollbarStyles() {} bool operator==(const ScrollbarStyles& aStyles) const { return aStyles.mHorizontal == mHorizontal && aStyles.mVertical == mVertical && aStyles.mScrollBehavior == mScrollBehavior && aStyles.mScrollSnapTypeX == mScrollSnapTypeX && aStyles.mScrollSnapTypeY == mScrollSnapTypeY && aStyles.mScrollSnapPointsX == mScrollSnapPointsX && aStyles.mScrollSnapPointsY == mScrollSnapPointsY && aStyles.mScrollSnapDestinationX == mScrollSnapDestinationX && aStyles.mScrollSnapDestinationY == mScrollSnapDestinationY; } bool operator!=(const ScrollbarStyles& aStyles) const { return !(*this == aStyles); } bool IsHiddenInBothDirections() const { return mHorizontal == NS_STYLE_OVERFLOW_HIDDEN && mVertical == NS_STYLE_OVERFLOW_HIDDEN; } bool IsSmoothScroll(dom::ScrollBehavior aBehavior) const { return aBehavior == dom::ScrollBehavior::Smooth || (aBehavior == dom::ScrollBehavior::Auto && mScrollBehavior == NS_STYLE_SCROLL_BEHAVIOR_SMOOTH); } }; } // namespace mozilla #endif