Match pull request file list styling

TESTING.md

@@ -253,7 +253,8 @@ xcrun simctl launch booted de.rfc1437.gotcha
 - [ ] Each row shows repository/number, title, author/update metadata, comment
       count, and draft/merged state where applicable.
 - [ ] Open a pull request and verify title, metadata, Markdown body, comments,
-      changed-file reference, file paths, and statuses.
+      and changed-file reference. Its file paths, statuses, left alignment,
+      separators, and disclosure indicators match the commit changed-file list.
 - [ ] Open a changed file and run the same diff checks as for a commit.
 
 ## Milestones

ios/Sources/DetailScreens.swift

@@ -310,8 +310,7 @@ final class PullViewController: MarkdownPageViewController {
                     )
                     if !page.files.isEmpty {
                         views.append(sectionLabel(page.filesRef))
-                        views.append(contentsOf: page.files.map { file in
+                        views.append(FileListView(rows: page.files) { [weak self] file in
-                        detailButton(title: file.path, detail: file.status) { [weak self] in
                             guard let self else { return }
                             self.navigationController?.pushViewController(
                                 DiffViewController(
@@ -325,7 +324,6 @@ final class PullViewController: MarkdownPageViewController {
                                 ),
                                 animated: true
                             )
-                        }
                         })
                     }
                     views.append(contentsOf: commentViews(page.comments))
@@ -343,6 +341,59 @@ final class PullViewController: MarkdownPageViewController {
     }
 }
 
+private final class FileListView: UITableView, UITableViewDataSource, UITableViewDelegate {
+    private let rows: [FileRow]
+    private let select: (FileRow) -> Void
+    private var contentHeight: NSLayoutConstraint!
+
+    init(rows: [FileRow], select: @escaping (FileRow) -> Void) {
+        self.rows = rows
+        self.select = select
+        super.init(frame: .zero, style: .plain)
+        translatesAutoresizingMaskIntoConstraints = false
+        dataSource = self
+        delegate = self
+        isScrollEnabled = false
+        rowHeight = UITableView.automaticDimension
+        estimatedRowHeight = 55
+        separatorInset = .zero
+        backgroundColor = .systemGroupedBackground
+        contentHeight = heightAnchor.constraint(equalToConstant: CGFloat(rows.count) * estimatedRowHeight)
+        contentHeight.isActive = true
+    }
+
+    @available(*, unavailable)
+    required init?(coder: NSCoder) { fatalError("init(coder:) is not supported") }
+
+    override func layoutSubviews() {
+        super.layoutSubviews()
+        if abs(contentHeight.constant - contentSize.height) > 0.5 {
+            contentHeight.constant = contentSize.height
+        }
+    }
+
+    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
+        rows.count
+    }
+
+    func tableView(
+        _ tableView: UITableView,
+        cellForRowAt indexPath: IndexPath
+    ) -> UITableViewCell {
+        let cell = tableView.dequeueReusableCell(withIdentifier: "file")
+            ?? UITableViewCell(style: .subtitle, reuseIdentifier: "file")
+        let row = rows[indexPath.row]
+        configureTextCell(cell, title: row.path, detail: row.status)
+        cell.accessoryType = .disclosureIndicator
+        return cell
+    }
+
+    func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
+        tableView.deselectRow(at: indexPath, animated: true)
+        select(rows[indexPath.row])
+    }
+}
+
 @MainActor
 final class FilesViewController: RefreshingTableViewController {
     private let context: AppContext
@@ -1192,16 +1243,3 @@ private func separator() -> UIView {
     line.heightAnchor.constraint(equalToConstant: 1 / UIScreen.main.scale).isActive = true
     return line
 }
-
-private func detailButton(title: String, detail: String, action: @escaping () -> Void) -> UIButton {
-    var configuration = UIButton.Configuration.plain()
-    configuration.title = title
-    configuration.subtitle = detail
-    configuration.image = UIImage(systemName: "chevron.right")
-    configuration.imagePlacement = .trailing
-    configuration.imagePadding = 8
-    configuration.contentInsets = .init(top: 10, leading: 0, bottom: 10, trailing: 0)
-    let button = UIButton(configuration: configuration, primaryAction: UIAction { _ in action() })
-    button.contentHorizontalAlignment = .fill
-    return button
-}