43 lines
1.5 KiB
Swift
43 lines
1.5 KiB
Swift
import UIKit
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public class LabelGroupAccessibilityElement: UIAccessibilityElement {
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let labels: [UILabel]
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weak var view: UIView?
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public init(view: UIView, labels: [UILabel], actions: [UIAccessibilityCustomAction]) {
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self.labels = labels
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self.view = view
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super.init(accessibilityContainer: view)
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isAccessibilityElement = true
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accessibilityTraits = UIAccessibilityTraits.link
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accessibilityCustomActions = actions
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update()
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}
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func update() {
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guard let firstLabel = labels.first else {
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return
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}
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var combinedLabel: String = ""
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if let accessibilityLabel = firstLabel.accessibilityLabel {
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combinedLabel = accessibilityLabel
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} else if let text = firstLabel.text {
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combinedLabel = text
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}
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var combinedFrame = firstLabel.frame
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for label in labels[1..<labels.count] {
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combinedFrame = combinedFrame.union(label.frame)
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var maybeLabelLine: String? = label.accessibilityLabel
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if maybeLabelLine == nil {
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maybeLabelLine = label.text
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}
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if let labelLine: String = maybeLabelLine, (labelLine as NSString).length > 0 {
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combinedLabel.append("\n")
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combinedLabel.append(labelLine)
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}
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}
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self.accessibilityFrameInContainerSpace = combinedFrame
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self.accessibilityLabel = combinedLabel
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}
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}
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