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38 lines
874 B
Swift
38 lines
874 B
Swift
//
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// TimelineContainerView.swift
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// NetNewsWire
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//
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// Created by Brent Simmons on 2/13/19.
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// Copyright © 2019 Ranchero Software. All rights reserved.
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//
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import AppKit
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final class TimelineContainerView: NSView {
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private var contentViewConstraints: [NSLayoutConstraint]?
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var contentView: NSView? {
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didSet {
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if contentView == oldValue {
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return
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}
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if let currentConstraints = contentViewConstraints {
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NSLayoutConstraint.deactivate(currentConstraints)
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}
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contentViewConstraints = nil
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oldValue?.removeFromSuperviewWithoutNeedingDisplay()
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if let contentView = contentView {
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contentView.translatesAutoresizingMaskIntoConstraints = false
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addSubview(contentView)
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let constraints = constraintsToMakeSubViewFullSize(contentView)
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NSLayoutConstraint.activate(constraints)
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contentViewConstraints = constraints
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}
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}
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}
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}
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