Fix Open on link for ERC721 tokens sourced from OpenSea don't do anything when tapped

AlphaWallet/Tokens/ViewControllers/TokenInstanceViewController.swift

@@ -24,6 +24,7 @@ class TokenInstanceViewController: UIViewController, TokenVerifiableStatusViewCo
     //TODO single row. Don't use table anymore
     private let tableView = UITableView(frame: .zero, style: .plain)
     private let buttonsBar = ButtonsBar(numberOfButtons: 3)
+    private let cellForSizing = TokenCardTableViewCellWithoutCheckbox()
 
     var tokenHolder: TokenHolder {
         return viewModel.tokenHolder
@@ -208,8 +209,34 @@ extension TokenInstanceViewController: UITableViewDelegate, UITableViewDataSourc
     }
 
     func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
-        let tokenType = OpenSeaBackedNonFungibleTokenHandling(token: tokenObject, assetDefinitionStore: assetDefinitionStore, tokenViewType: .view)
         let cell = tableView.dequeueReusableCell(withIdentifier: TokenCardTableViewCellWithoutCheckbox.identifier, for: indexPath) as! TokenCardTableViewCellWithoutCheckbox
+        configure(cell: cell)
+        return cell
+    }
+
+    func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
+        //We don't allow user to toggle (despite it not doing anything) for non-opensea-backed tokens because it will cause TokenScript views to flash as they have to be re-rendered
+        switch OpenSeaBackedNonFungibleTokenHandling(token: viewModel.token, assetDefinitionStore: assetDefinitionStore, tokenViewType: .viewIconified) {
+        case .backedByOpenSea:
+            viewModel.toggleSelection(for: indexPath)
+            configure()
+        case .notBackedByOpenSea:
+            break
+        }
+    }
+
+    func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
+        configure(cell: cellForSizing)
+        let size = cellForSizing.systemLayoutSizeFitting(UIView.layoutFittingExpandedSize)
+        if let rowView = cellForSizing.rowView {
+            return size.height + rowView.additionalHeightToCompensateForAutoLayout
+        } else {
+            return size.height
+        }
+    }
+
+    private func configure(cell: TokenCardTableViewCellWithoutCheckbox) {
+        let tokenType = OpenSeaBackedNonFungibleTokenHandling(token: tokenObject, assetDefinitionStore: assetDefinitionStore, tokenViewType: .view)
         let rowView: TokenCardRowViewProtocol & UIView
         switch tokenType {
         case .backedByOpenSea:
@@ -224,18 +251,6 @@ extension TokenInstanceViewController: UITableViewDelegate, UITableViewDataSourc
         cell.delegate = self
         cell.rowView = rowView
         cell.configure(viewModel: .init(tokenHolder: viewModel.tokenHolder, cellWidth: tableView.frame.size.width, tokenView: .view), assetDefinitionStore: assetDefinitionStore)
-        return cell
-    }
-
-    func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
-        //We don't allow user to toggle (despite it not doing anything) for non-opensea-backed tokens because it will cause TokenScript views to flash as they have to be re-rendered
-        switch OpenSeaBackedNonFungibleTokenHandling(token: viewModel.token, assetDefinitionStore: assetDefinitionStore, tokenViewType: .viewIconified) {
-        case .backedByOpenSea:
-            viewModel.toggleSelection(for: indexPath)
-            configure()
-        case .notBackedByOpenSea:
-            break
-        }
     }
 }
 

AlphaWallet/Tokens/Views/BaseTokenCardTableViewCell.swift

@@ -89,18 +89,11 @@ class BaseTokenCardTableViewCell: UITableViewCell {
         rowView.translatesAutoresizingMaskIntoConstraints = false
         contentView.addSubview(rowView)
 
-        //Needs to for expanded view to be laid out with correct height, but cell might be too short
-        let getExpandedHeightCorrectConstraint = rowView.bottomAnchor.constraint(greaterThanOrEqualTo: contentView.bottomAnchor, constant: -GroupedTable.Metric.cellSeparatorHeight)
-        //Gets cell height correct, compensating the constraint above
-        let getCellHeightCorrectConstraint = rowView.bottomAnchor.constraint(equalTo: contentView.bottomAnchor, constant: -GroupedTable.Metric.cellSeparatorHeight)
-        getCellHeightCorrectConstraint.priority = .fittingSizeLevel
-
         NSLayoutConstraint.activate([
             rowView.leadingAnchor.constraint(equalTo: contentView.leadingAnchor),
             rowView.trailingAnchor.constraint(equalTo: contentView.trailingAnchor),
             rowView.topAnchor.constraint(equalTo: contentView.topAnchor, constant: GroupedTable.Metric.cellSpacing + GroupedTable.Metric.cellSeparatorHeight),
-            getExpandedHeightCorrectConstraint,
-            getCellHeightCorrectConstraint,
+            rowView.bottomAnchor.constraint(equalTo: contentView.bottomAnchor, constant: -GroupedTable.Metric.cellSeparatorHeight)
         ])
     }
 }

AlphaWallet/Tokens/Views/OpenSea/OpenSeaNonFungibleTokenCardRowView.swift

@@ -8,6 +8,9 @@ protocol OpenSeaNonFungibleTokenCardRowViewDelegate: class {
 }
 
 class OpenSeaNonFungibleTokenCardRowView: UIView, TokenCardRowViewProtocol {
+    private static let xMargin = CGFloat(7)
+    private static let yMargin = CGFloat(5)
+
     private let mainVerticalStackView: UIStackView = [].asStackView(axis: .vertical, contentHuggingPriority: .required)
     private let thumbnailImageView = UIImageView()
     private let bigImageBackground = UIView()
@@ -92,6 +95,14 @@ class OpenSeaNonFungibleTokenCardRowView: UIView, TokenCardRowViewProtocol {
     private var currentDisplayedImageUrl: URL?
     private var checkboxRelatedConstraintsWhenShown = [NSLayoutConstraint]()
     private var checkboxRelatedConstraintsWhenHidden = [NSLayoutConstraint]()
+    //Hackish: To get the width of the descriptionLabel in order to calculate the correct height
+    private var descriptionLabelWidth: CGFloat {
+        if let fullWidth = viewModel?.width {
+            return fullWidth - OpenSeaNonFungibleTokenCardRowView.xMargin * 2 - outerHorizontalMargin
+        } else {
+            return 0
+        }
+    }
 
     var background = UIView()
     var stateLabel = UILabel()
@@ -108,6 +119,17 @@ class OpenSeaNonFungibleTokenCardRowView: UIView, TokenCardRowViewProtocol {
             }
         }
     }
+    var additionalHeightToCompensateForAutoLayout: CGFloat {
+        guard let attributedText = descriptionLabel.attributedText else { return 0 }
+        let rect = attributedText.boundingRect(with: .init(width: descriptionLabelWidth, height: 1000), options: .usesLineFragmentOrigin, context: nil)
+        let size = rect.size
+        //Hackish: Add a bit of allowance. Otherwise it's good for CryptoKitties, but there's no enough space for Chibi Fighters' title
+        if size.height > 0 {
+            return size.height + 10
+        } else {
+            return 0
+        }
+    }
     //Just to adhere to protocol
     var areDetailsVisible = false
 
@@ -165,8 +187,10 @@ class OpenSeaNonFungibleTokenCardRowView: UIView, TokenCardRowViewProtocol {
             generationStackView,
             cooldownStackView
         ])
+        titleLabel.setContentCompressionResistancePriority(.required, for: .vertical)
+        descriptionLabel.setContentCompressionResistancePriority(.required, for: .vertical)
 
-        let col0 = [
+        let col0: UIStackView = [
             spacers.aboveTitle,
             stateLabel,
             spacers.belowState,
@@ -213,11 +237,9 @@ class OpenSeaNonFungibleTokenCardRowView: UIView, TokenCardRowViewProtocol {
         background.addSubview(mainVerticalStackView)
 
         // TODO extract constant. Maybe StyleLayout.sideMargin
-        let xMargin = CGFloat(7)
-        let yMargin = CGFloat(5)
-        checkboxRelatedConstraintsWhenShown.append(checkboxImageView.leadingAnchor.constraint(equalTo: leadingAnchor, constant: xMargin))
+        checkboxRelatedConstraintsWhenShown.append(checkboxImageView.leadingAnchor.constraint(equalTo: leadingAnchor, constant: OpenSeaNonFungibleTokenCardRowView.xMargin))
         checkboxRelatedConstraintsWhenShown.append(checkboxImageView.centerYAnchor.constraint(equalTo: centerYAnchor))
-        checkboxRelatedConstraintsWhenShown.append(background.leadingAnchor.constraint(equalTo: checkboxImageView.trailingAnchor, constant: xMargin))
+        checkboxRelatedConstraintsWhenShown.append(background.leadingAnchor.constraint(equalTo: checkboxImageView.trailingAnchor, constant: OpenSeaNonFungibleTokenCardRowView.xMargin))
         if ScreenChecker().isNarrowScreen {
             checkboxRelatedConstraintsWhenShown.append(checkboxImageView.widthAnchor.constraint(equalToConstant: 20))
             checkboxRelatedConstraintsWhenShown.append(checkboxImageView.heightAnchor.constraint(equalToConstant: 20))
@@ -226,7 +248,7 @@ class OpenSeaNonFungibleTokenCardRowView: UIView, TokenCardRowViewProtocol {
             checkboxRelatedConstraintsWhenShown.append(checkboxImageView.widthAnchor.constraint(equalToConstant: 28))
             checkboxRelatedConstraintsWhenShown.append(checkboxImageView.heightAnchor.constraint(equalToConstant: 28))
         }
-        checkboxRelatedConstraintsWhenHidden.append(background.leadingAnchor.constraint(equalTo: leadingAnchor, constant: xMargin))
+        checkboxRelatedConstraintsWhenHidden.append(background.leadingAnchor.constraint(equalTo: leadingAnchor, constant: OpenSeaNonFungibleTokenCardRowView.xMargin))
         if showCheckbox {
             NSLayoutConstraint.activate(checkboxRelatedConstraintsWhenShown)
         } else {
@@ -261,9 +283,9 @@ class OpenSeaNonFungibleTokenCardRowView: UIView, TokenCardRowViewProtocol {
         NSLayoutConstraint.activate([
             mainVerticalStackView.anchorsConstraint(to: background, edgeInsets: .init(top: marginForBigImageView, left: 0, bottom: 0, right: 0)),
 
-            background.trailingAnchor.constraint(equalTo: trailingAnchor, constant: -xMargin),
-            background.topAnchor.constraint(equalTo: topAnchor, constant: yMargin),
-            background.bottomAnchor.constraint(equalTo: bottomAnchor, constant: -yMargin),
+            background.trailingAnchor.constraint(equalTo: trailingAnchor, constant: -OpenSeaNonFungibleTokenCardRowView.xMargin),
+            background.topAnchor.constraint(equalTo: topAnchor, constant: OpenSeaNonFungibleTokenCardRowView.yMargin),
+            background.bottomAnchor.constraint(equalTo: bottomAnchor, constant: -OpenSeaNonFungibleTokenCardRowView.yMargin),
 
             stateLabel.heightAnchor.constraint(equalToConstant: 22),
 
@@ -436,6 +458,7 @@ class OpenSeaNonFungibleTokenCardRowView: UIView, TokenCardRowViewProtocol {
                 descriptionLabel.attributedText = viewModel.descriptionWithoutConvertingHtml
             }
         }
+        descriptionLabel.preferredMaxLayoutWidth = descriptionLabelWidth
 
         titleLabel.text = viewModel.title
 

AlphaWallet/UI/Views/TokenCardRowView.swift

@@ -68,6 +68,9 @@ class TokenCardRowView: UIView, TokenCardRowViewProtocol {
 			detailsRowStack?.isHidden = !areDetailsVisible
 		}
 	}
+	var additionalHeightToCompensateForAutoLayout: CGFloat {
+		return 0
+	}
 
 	init(server: RPCServer, tokenView: TokenView, showCheckbox: Bool = false, assetDefinitionStore: AssetDefinitionStore) {
 		self.server = server

AlphaWallet/UI/Views/TokenCardRowViewProtocol.swift

@@ -9,6 +9,7 @@ protocol TokenCardRowViewProtocol {
     var tokenView: TokenView { get set }
     var showCheckbox: Bool { get set }
     var areDetailsVisible: Bool { get set }
+    var additionalHeightToCompensateForAutoLayout: CGFloat { get }
 
     func configure(tokenHolder: TokenHolder, tokenView: TokenView, areDetailsVisible: Bool, width: CGFloat, assetDefinitionStore: AssetDefinitionStore)
 }