snapshot

Signed-off-by: Joseph Mattello <mail@joemattiello.com>

SideStoreApp/Sources/SideStoreUIKit/Components/ToastView.swift

@@ -0,0 +1,115 @@
+//
+//  ToastView.swift
+//  AltStore
+//
+//  Created by Riley Testut on 7/19/19.
+//  Copyright © 2019 Riley Testut. All rights reserved.
+//
+
+import RoxasUIKit
+
+import SideStoreCore
+import SideKit
+import AltSign
+
+extension TimeInterval {
+    static let shortToastViewDuration = 4.0
+    static let longToastViewDuration = 8.0
+}
+
+final class ToastView: RSTToastView {
+    var preferredDuration: TimeInterval
+
+    override init(text: String, detailText detailedText: String?) {
+        if detailedText == nil {
+            preferredDuration = .shortToastViewDuration
+        } else {
+            preferredDuration = .longToastViewDuration
+        }
+
+        super.init(text: text, detailText: detailedText)
+
+        isAccessibilityElement = true
+
+        layoutMargins = UIEdgeInsets(top: 8, left: 16, bottom: 10, right: 16)
+        setNeedsLayout()
+
+        if let stackView = textLabel.superview as? UIStackView {
+            // RSTToastView does not expose stack view containing labels,
+            // so we access it indirectly as the labels' superview.
+            stackView.spacing = (detailedText != nil) ? 4.0 : 0.0
+        }
+    }
+
+    convenience init(error: Error) {
+        var error = error as NSError
+        var underlyingError = error.underlyingError
+
+        var preferredDuration: TimeInterval?
+
+        if
+            let unwrappedUnderlyingError = underlyingError,
+            error.domain == AltServerErrorDomain && error.code == -1 //ALTServerError.underlyingError().rawValue
+        {
+            // Treat underlyingError as the primary error.
+
+            error = unwrappedUnderlyingError as NSError
+            underlyingError = nil
+
+            preferredDuration = .longToastViewDuration
+        }
+
+        let text: String
+        let detailText: String?
+
+        if let failure = error.localizedFailure {
+            text = failure
+            detailText = error.localizedFailureReason ?? error.localizedRecoverySuggestion ?? underlyingError?.localizedDescription ?? error.localizedDescription
+        } else if let reason = error.localizedFailureReason {
+            text = reason
+            detailText = error.localizedRecoverySuggestion ?? underlyingError?.localizedDescription
+        } else {
+            text = error.localizedDescription
+            detailText = underlyingError?.localizedDescription ?? error.localizedRecoverySuggestion
+        }
+
+        self.init(text: text, detailText: detailText)
+
+        if let preferredDuration = preferredDuration {
+            self.preferredDuration = preferredDuration
+        }
+    }
+
+    @available(*, unavailable)
+    required init(coder _: NSCoder) {
+        fatalError("init(coder:) has not been implemented")
+    }
+
+    override func layoutSubviews() {
+        super.layoutSubviews()
+
+        // Rough calculation to determine height of ToastView with one-line textLabel.
+        let minimumHeight = textLabel.font.lineHeight.rounded() + 18
+        layer.cornerRadius = minimumHeight / 2
+    }
+
+    func show(in viewController: UIViewController) {
+        show(in: viewController.navigationController?.view ?? viewController.view, duration: preferredDuration)
+    }
+
+    override func show(in view: UIView, duration: TimeInterval) {
+        super.show(in: view, duration: duration)
+
+        let announcement = (textLabel.text ?? "") + ". " + (detailTextLabel.text ?? "")
+        accessibilityLabel = announcement
+
+        // Minimum 0.75 delay to prevent announcement being cut off by VoiceOver.
+        DispatchQueue.main.asyncAfter(deadline: .now() + 0.75) {
+            UIAccessibility.post(notification: .announcement, argument: announcement)
+        }
+    }
+
+    override func show(in view: UIView) {
+        show(in: view, duration: preferredDuration)
+    }
+}