Custom cell class

[ra1028]

Checklist

• All tests are passed.
• Added tests.
• Documented the code using Xcode markup.
• Searched existing pull requests for ensure not duplicated.

Description

Make Carbon enable to use custom cell subclass for the container of component.

Sample with SwipeCellKit.

extension SwipeTableViewCell: ComponentRenderable {}

final class SwipeCellKitTodoAdapter: UITableViewAdapter, SwipeTableViewCellDelegate {
    override func cellRegistration(tableView: UITableView, indexPath: IndexPath, node: CellNode) -> CellRegistration {
        return CellRegistration(class: SwipeTableViewCell.self)
    }

    override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
        let cell = super.tableView(tableView, cellForRowAt: indexPath) as! SwipeTableViewCell
        cell.delegate = self
        cell.selectionStyle = .none
        return cell
    }

    func tableView(_ tableView: UITableView, editActionsForRowAt indexPath: IndexPath, for orientation: SwipeActionsOrientation) -> [SwipeAction]? {
        guard let deletable = cellNode(at: indexPath).component(as: Deletable.self), orientation == .right else {
            return nil
        }

        let deleteAction = SwipeAction(style: .destructive, title: nil) { action, _ in
            deletable.delete()
            action.fulfill(with: .delete)
        }

        deleteAction.image = #imageLiteral(resourceName: "Trash")
        return [deleteAction]
    }
}

Related Issue

#10

Motivation and Context

Users want to add an ability to customize cell, header or footer behavior related to {UITableView / UICollectionView}.
That's because to coexist Carbon and external libraries such as SwipeCellKit.
It also allows the user to have a more flexible implementation that isn't restricted by Carbon.

Impact on Existing Code

Many breaking changes are made to provide more flexible API.