86 lines
2.8 KiB
Swift
86 lines
2.8 KiB
Swift
//
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// RxTableViewDataSourceProxy.swift
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// RxCocoa
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//
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// Created by Krunoslav Zaher on 6/15/15.
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// Copyright (c) 2015 Krunoslav Zaher. All rights reserved.
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//
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#if os(iOS) || os(tvOS)
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import Foundation
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import UIKit
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#if !RX_NO_MODULE
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import RxSwift
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#endif
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let tableViewDataSourceNotSet = TableViewDataSourceNotSet()
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class TableViewDataSourceNotSet : NSObject
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, UITableViewDataSource {
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func numberOfSectionsInTableView(tableView: UITableView) -> Int {
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return rxAbstractMethodWithMessage(dataSourceNotSet)
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}
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func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
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return rxAbstractMethodWithMessage(dataSourceNotSet)
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}
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func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
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return rxAbstractMethodWithMessage(dataSourceNotSet)
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}
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}
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// Please take a look at `DelegateProxyType.swift`
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class RxTableViewDataSourceProxy : DelegateProxy
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, UITableViewDataSource
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, DelegateProxyType {
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unowned let tableView: UITableView
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unowned var dataSource: UITableViewDataSource = tableViewDataSourceNotSet
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required init(parentObject: AnyObject) {
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self.tableView = parentObject as! UITableView
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super.init(parentObject: parentObject)
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}
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// data source delegate
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func numberOfSectionsInTableView(tableView: UITableView) -> Int {
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return self.dataSource.numberOfSectionsInTableView?(tableView) ?? 1
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}
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func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
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return self.dataSource.tableView(tableView, numberOfRowsInSection: section)
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}
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func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
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return self.dataSource.tableView(tableView, cellForRowAtIndexPath: indexPath)
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}
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// proxy
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override class func delegateAssociatedObjectTag() -> UnsafePointer<Void> {
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return _pointer(&dataSourceAssociatedTag)
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}
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class func setCurrentDelegate(delegate: AnyObject?, toObject object: AnyObject) {
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let collectionView: UITableView = castOrFatalError(object)
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collectionView.dataSource = castOptionalOrFatalError(delegate)
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}
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class func currentDelegateFor(object: AnyObject) -> AnyObject? {
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let collectionView: UITableView = castOrFatalError(object)
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return collectionView.dataSource
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}
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override func setForwardToDelegate(forwardToDelegate: AnyObject?, retainDelegate: Bool) {
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let dataSource: UITableViewDataSource? = castOptionalOrFatalError(forwardToDelegate)
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self.dataSource = dataSource ?? tableViewDataSourceNotSet
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super.setForwardToDelegate(forwardToDelegate, retainDelegate: retainDelegate)
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}
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}
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#endif
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