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42 lines
1.1 KiB
C++
42 lines
1.1 KiB
C++
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_ScrollSnapTargetId_h_
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#define mozilla_ScrollSnapTargetId_h_
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#include <cstdint>
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#include "nsPoint.h"
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#include "nsTArray.h"
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#include "Units.h"
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namespace mozilla {
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// The id for each scroll snap target element to track the last snapped element.
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// 0 means it wasn't snapped on the last scroll operation.
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enum class ScrollSnapTargetId : uintptr_t {
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None = 0,
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};
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inline constexpr bool IsEnumCase(ScrollSnapTargetId) { return true; }
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struct ScrollSnapTargetIds {
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CopyableTArray<ScrollSnapTargetId> mIdsOnX;
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CopyableTArray<ScrollSnapTargetId> mIdsOnY;
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bool operator==(const ScrollSnapTargetIds& aOther) const {
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return mIdsOnX == aOther.mIdsOnX && mIdsOnY == aOther.mIdsOnY;
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}
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};
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struct SnapDestination {
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nsPoint mPosition;
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ScrollSnapTargetIds mTargetIds;
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};
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struct CSSSnapDestination {
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CSSPoint mPosition;
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ScrollSnapTargetIds mTargetIds;
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};
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} // namespace mozilla
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#endif // mozilla_ScrollSnapTargetId_h_
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