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74 lines
2 KiB
Swift
74 lines
2 KiB
Swift
//
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// Copyright 2021 New Vector Ltd
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//
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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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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class RoomMessageBubbleBackgroundView: UIView {
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// MARK: - Constant
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private enum Constants {
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static let cornerRadius: CGFloat = 12.0
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}
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// MARK: - Properties
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private var heightConstraint: NSLayoutConstraint?
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// MARK: - Setup
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convenience init() {
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self.init(frame: CGRect.zero)
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}
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override init(frame: CGRect) {
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super.init(frame: frame)
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self.commonInit()
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}
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required init?(coder: NSCoder) {
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super.init(coder: coder)
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self.commonInit()
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}
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private func commonInit() {
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self.translatesAutoresizingMaskIntoConstraints = false
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self.layer.masksToBounds = true
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self.layer.cornerRadius = Constants.cornerRadius
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}
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// MARK: - Public
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@discardableResult
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func updateHeight(_ height: CGFloat) -> Bool {
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if let heightConstraint = self.heightConstraint {
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guard heightConstraint.constant != height else {
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return false
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}
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heightConstraint.constant = height
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return true
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} else {
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let heightConstraint = self.heightAnchor.constraint(equalToConstant: height)
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heightConstraint.isActive = true
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self.heightConstraint = heightConstraint
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return true
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}
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}
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}
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