From 90af773fef10f50683eb49c382f00133aedb7387 Mon Sep 17 00:00:00 2001
From: Roopesh Chander <roop@roopc.net>
Date: Fri, 2 Nov 2018 13:24:10 +0530
Subject: [PATCH] Handle cell reuse in showing delete buttons in red

Signed-off-by: Roopesh Chander <roop@roopc.net>
---
 .../UI/iOS/TunnelDetailTableViewController.swift         | 9 ++++++++-
 .../WireGuard/UI/iOS/TunnelEditTableViewController.swift | 9 ++++++++-
 2 files changed, 16 insertions(+), 2 deletions(-)

diff --git a/WireGuard/WireGuard/UI/iOS/TunnelDetailTableViewController.swift b/WireGuard/WireGuard/UI/iOS/TunnelDetailTableViewController.swift
index 2921ca5..71bdeca 100644
--- a/WireGuard/WireGuard/UI/iOS/TunnelDetailTableViewController.swift
+++ b/WireGuard/WireGuard/UI/iOS/TunnelDetailTableViewController.swift
@@ -198,7 +198,7 @@ extension TunnelDetailTableViewController {
             // Delete configuration
             let cell = tableView.dequeueReusableCell(withIdentifier: TunnelDetailTableViewButtonCell.id, for: indexPath) as! TunnelDetailTableViewButtonCell
             cell.buttonText = "Delete tunnel"
-            cell.button.tintColor = UIColor.red
+            cell.hasDestructiveAction = true
             cell.onTapped = { [weak self] in
                 guard let s = self else { return }
                 s.showConfirmationAlert(message: "Delete this tunnel?", buttonTitle: "Delete", from: cell) { [weak s] in
@@ -336,12 +336,18 @@ class TunnelDetailTableViewButtonCell: UITableViewCell {
         get { return button.title(for: .normal) ?? "" }
         set(value) { button.setTitle(value, for: .normal) }
     }
+    var hasDestructiveAction: Bool {
+        get { return button.tintColor == UIColor.red }
+        set(value) { button.tintColor = value ? UIColor.red : buttonStandardTintColor }
+    }
     var onTapped: (() -> Void)? = nil
 
     let button: UIButton
+    var buttonStandardTintColor: UIColor
 
     override init(style: UITableViewCellStyle, reuseIdentifier: String?) {
         button = UIButton(type: .system)
+        buttonStandardTintColor = button.tintColor
         super.init(style: style, reuseIdentifier: reuseIdentifier)
         contentView.addSubview(button)
         button.translatesAutoresizingMaskIntoConstraints = false
@@ -364,5 +370,6 @@ class TunnelDetailTableViewButtonCell: UITableViewCell {
         super.prepareForReuse()
         buttonText = ""
         onTapped = nil
+        hasDestructiveAction = false
     }
 }
diff --git a/WireGuard/WireGuard/UI/iOS/TunnelEditTableViewController.swift b/WireGuard/WireGuard/UI/iOS/TunnelEditTableViewController.swift
index c7794e3..17615ab 100644
--- a/WireGuard/WireGuard/UI/iOS/TunnelEditTableViewController.swift
+++ b/WireGuard/WireGuard/UI/iOS/TunnelEditTableViewController.swift
@@ -240,7 +240,7 @@ extension TunnelEditTableViewController {
             if (field == .deletePeer) {
                 let cell = tableView.dequeueReusableCell(withIdentifier: TunnelEditTableViewButtonCell.id, for: indexPath) as! TunnelEditTableViewButtonCell
                 cell.buttonText = field.rawValue
-                cell.button.tintColor = UIColor.red
+                cell.hasDestructiveAction = true
                 cell.onTapped = { [weak self, weak peerData] in
                     guard let peerData = peerData else { return }
                     guard let s = self else { return }
@@ -512,12 +512,18 @@ class TunnelEditTableViewButtonCell: UITableViewCell {
         get { return button.title(for: .normal) ?? "" }
         set(value) { button.setTitle(value, for: .normal) }
     }
+    var hasDestructiveAction: Bool {
+        get { return button.tintColor == UIColor.red }
+        set(value) { button.tintColor = value ? UIColor.red : buttonStandardTintColor }
+    }
     var onTapped: (() -> Void)? = nil
 
     let button: UIButton
+    var buttonStandardTintColor: UIColor
 
     override init(style: UITableViewCellStyle, reuseIdentifier: String?) {
         button = UIButton(type: .system)
+        buttonStandardTintColor = button.tintColor
         super.init(style: style, reuseIdentifier: reuseIdentifier)
         contentView.addSubview(button)
         button.translatesAutoresizingMaskIntoConstraints = false
@@ -540,6 +546,7 @@ class TunnelEditTableViewButtonCell: UITableViewCell {
         super.prepareForReuse()
         buttonText = ""
         onTapped = nil
+        hasDestructiveAction = false
     }
 }