NSDK-293: fix button height on error state

CHANGES.md

@@ -11,7 +11,8 @@ Use list notation, and following prefixes:
 - Docs - for any improvement to documentation
 
 ### Changes
-- Fix: issue with no size found text
+- Bugfix: set button height to zero on error
+- Bugfix: Virtusize button state when loading a new product
 
 ### 2.12.21
 - Bugfix: Added async Task cancellation to fix concurrency crash

Virtusize/Sources/SwiftUI/SwiftUIVirtusizeInPageMini.swift

@@ -56,7 +56,10 @@ public struct SwiftUIVirtusizeInPageMini: View {
 			uiKitView: uiView,
 			defaultStyle: virtusizeDefaultStyle
 		)
-		.frame(width: desiredSize.width, height: max(desiredSize.height, 35), alignment: .center)
+		.frame(width: desiredSize.width, height: desiredSize.height == 0 ? 0.1 : max(desiredSize.height, 35), alignment: .center)
+		.opacity(desiredSize.height == 0 ? 0 : 1)
+		.frame(height: desiredSize.height == 0 ? 0.1 : nil)
+		.clipped()
 	}
 }
 
@@ -122,9 +125,12 @@ private struct VirtusizeInPageMiniWrapper: UIViewRepresentable {
 
 		uiView.setContentViewListener(listener: { view in
 			if let label = (view as? VirtusizeInPageMini)?.inPageMiniMessageLabel {
+				// Set height to 0 if product is invalid, there's an error, or view is hidden
+				let calculatedHeight = label.text?.height(width: label.frame.width, font: label.font) ?? 35
+				let height = (view.invalidProduct || view.isError || view.isHidden) ? 0 : calculatedHeight
 				desiredSize = CGSize(
 					width: UIScreen.main.bounds.size.width - uiView.userSetMargin * 2,
-					height: label.text?.height(width: label.frame.width, font: label.font) ?? 35
+					height: height
 				)
 			}
 		})

Virtusize/Sources/SwiftUI/SwiftUIVirtusizeInPageStandard.swift

@@ -52,13 +52,16 @@ public struct SwiftUIVirtusizeInPageStandard: View {
 		VirtusizeInPageStandardWrapper(
 			product: product,
 			desiredSize: $desiredSize,
-            horizontalMargin: $horizontalMargin,
+			horizontalMargin: $horizontalMargin,
 			action: action,
 			uiView: uiView,
 			defaultStyle: virtusizeDefaultStyle
 		)
-        .offset(x: horizontalMargin)
-        .frame(width: desiredSize.width, height: max(desiredSize.height, 92), alignment: .center)
+		.offset(x: horizontalMargin)
+		.frame(width: desiredSize.width, height: desiredSize.height == 0 ? 0.1 : max(desiredSize.height, 92), alignment: .center)
+		.opacity(desiredSize.height == 0 ? 0 : 1)
+		.frame(height: desiredSize.height == 0 ? 0.1 : nil)
+		.clipped()
 	}
 }
 
@@ -133,9 +136,11 @@ private struct VirtusizeInPageStandardWrapper: UIViewRepresentable {
 
 		uiView.setContentViewListener(listener: { view in
             horizontalMargin = view.userSetMargin
+			// Set height to 0 if product is invalid, there's an error, or view is hidden
+			let height = (view.invalidProduct || view.isError || view.isHidden) ? 0 : view.frame.height
 			desiredSize = CGSize(
 				width: UIScreen.main.bounds.size.width,
-				height: view.frame.height
+				height: height
 			)
 		})
 	}

Virtusize/Sources/UI/VirtusizeInPageMini.swift

@@ -162,13 +162,19 @@ public class VirtusizeInPageMini: VirtusizeInPageView {
 			"messageAndButtonMargin": messageAndButtonMargin
 		]
 
-		let horizontalConstraints = NSLayoutConstraint.constraints(
+		var horizontalConstraints = NSLayoutConstraint.constraints(
 			// swiftlint:disable:next line_length
 			withVisualFormat: "H:|-horizontalMargin-[inPageMiniImageView]-0-[messageLabel]-(>=messageAndButtonMargin)-[sizeCheckButton]-horizontalMargin-|",
 			options: NSLayoutConstraint.FormatOptions(rawValue: 0),
 			metrics: metrics,
 			views: views
 		)
+		// Lower the priority of leading and trailing constraints to prevent conflicts during initial layout
+		for constraint in horizontalConstraints {
+			if constraint.firstItem === self || constraint.secondItem === self {
+				constraint.priority = UILayoutPriority(999)
+			}
+		}
 
 		let inPageMiniImageViewVerticalConstraints = NSLayoutConstraint.constraints(
 			withVisualFormat: "V:|-(>=verticalMargin)-[inPageMiniImageView(18)]-(>=verticalMargin)-|",
@@ -267,6 +273,10 @@ public class VirtusizeInPageMini: VirtusizeInPageView {
 		inPageMiniImageView.image = loading ? VirtusizeAssets.icon : nil
 		inPageMiniMessageLabel.textColor = loading ? .vsGray900Color : .white
 		setupTextsStyle(messageLabelIsBold: loading)
+
+		// Re-enable user interaction when loading valid product
+		isUserInteractionEnabled = true
+
 		if loading {
 			startLoadingTextAnimation(
 				label: inPageMiniMessageLabel,

Virtusize/Sources/UI/VirtusizeInPageView.swift

@@ -72,6 +72,7 @@ public class VirtusizeInPageView: UIView, VirtusizeView, VirtusizeViewEventProto
     internal var isLoading: Bool = false
     internal var isError: Bool = false
     internal var invalidProduct: Bool = false
+	private var heightConstraint: NSLayoutConstraint?
 
 	private func addSubviews() {
 		// Add loading GIF image view
@@ -104,6 +105,19 @@ public class VirtusizeInPageView: UIView, VirtusizeView, VirtusizeViewEventProto
         isLoading = show
 		loadingGifImageView.isHidden = !show
 		contentContainerView.isHidden = show
+
+		// Set height to 0 for invalid product or error
+		if invalidProduct || isError {
+			if heightConstraint == nil {
+				heightConstraint = heightAnchor.constraint(equalToConstant: 0)
+				heightConstraint?.priority = .defaultHigh
+				heightConstraint?.isActive = true
+			}
+		} else {
+			// Remove height constraint for valid product
+			heightConstraint?.isActive = false
+			heightConstraint = nil
+		}
 	}
 
 	/// Add observers to listen to notification data from the sender (Virtusize.self)
@@ -155,6 +169,8 @@ public class VirtusizeInPageView: UIView, VirtusizeView, VirtusizeViewEventProto
 	@objc internal func didReceiveProductCheckData(_ notification: Notification) {
 		shouldUpdateProductCheckData(notification) { productWithPDCData in
 			self.clientProduct = productWithPDCData
+			self.invalidProduct = false
+			self.isError = false
 			showLoadingGif(false)
 			setLoadingScreen(loading: true)
             isLoading = true
@@ -171,10 +187,18 @@ public class VirtusizeInPageView: UIView, VirtusizeView, VirtusizeViewEventProto
 	@objc internal func didReceiveSizeRecommendationData(_ notification: Notification) {
         isLoading = false
         isError = false
+		// Remove height constraint when data is successfully loaded
+		heightConstraint?.isActive = false
+		heightConstraint = nil
     }
 
     @objc func productCheckDidFail(_ notification: Notification) {
         invalidProduct = true
+		showLoadingGif(false)
+		// Notify SwiftUI wrappers to update height
+		DispatchQueue.main.async {
+			self.contentViewListener?(self)
+		}
     }
 
 	internal func shouldUpdateInPageRecommendation(
@@ -204,6 +228,16 @@ public class VirtusizeInPageView: UIView, VirtusizeView, VirtusizeViewEventProto
 	/// A parent function for showing the error screen
 	@objc internal func didReceiveInPageError(_ notification: Notification) {
         isError = true
+		// Update height constraint for error state
+		if heightConstraint == nil {
+			heightConstraint = heightAnchor.constraint(equalToConstant: 0)
+			heightConstraint?.priority = .defaultHigh
+			heightConstraint?.isActive = true
+		}
+		// Notify SwiftUI wrappers to update height
+		DispatchQueue.main.async {
+			self.contentViewListener?(self)
+		}
     }
 
 	/// Sets up the styles for the loading screen and the screen after finishing loading
@@ -212,6 +246,9 @@ public class VirtusizeInPageView: UIView, VirtusizeView, VirtusizeViewEventProto
 	///   - loading: Pass true when it's loading, and pass false when finishing loading
 	internal func setLoadingScreen(loading: Bool) {
         isError = false
+		// Remove height constraint when loading valid product
+		heightConstraint?.isActive = false
+		heightConstraint = nil
     }
 
 	internal func setup() {}