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39 lines
1.3 KiB
Swift
39 lines
1.3 KiB
Swift
/*
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Copyright 2020 New Vector Ltd
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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import Foundation
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/// `SizingViewHeightStore` allows to store `SizingViewHeight` for a given hash value
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final class SizingViewHeightStore {
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private var sizes = Set<SizingViewHeight>()
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func findOrCreateSizingViewHeight(from viewHeightHashValue: Int) -> SizingViewHeight {
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let sizingViewHeight: SizingViewHeight
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if let foundSizingViewHeight = self.sizes.first(where: { (sizingViewHeight) -> Bool in
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return sizingViewHeight.uniqueIdentifier == viewHeightHashValue
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}) {
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sizingViewHeight = foundSizingViewHeight
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} else {
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sizingViewHeight = SizingViewHeight(uniqueIdentifier: viewHeightHashValue)
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self.sizes.insert(sizingViewHeight)
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}
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return sizingViewHeight
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}
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}
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