105 lines
3.0 KiB
Swift
105 lines
3.0 KiB
Swift
//
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// RxTableViewReactiveArrayDataSource.swift
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// RxCocoa
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//
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// Created by Krunoslav Zaher on 6/26/15.
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// Copyright © 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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// objc monkey business
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class _RxTableViewReactiveArrayDataSource
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: NSObject
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, UITableViewDataSource {
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func numberOfSectionsInTableView(tableView: UITableView) -> Int {
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return 1
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}
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func _tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
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return 0
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}
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func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
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return _tableView(tableView, numberOfRowsInSection: section)
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}
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func _tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
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rxAbstractMethod()
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}
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func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
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return _tableView(tableView, cellForRowAtIndexPath: indexPath)
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}
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}
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class RxTableViewReactiveArrayDataSourceSequenceWrapper<S: SequenceType>
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: RxTableViewReactiveArrayDataSource<S.Generator.Element>
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, RxTableViewDataSourceType {
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typealias Element = S
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override init(cellFactory: CellFactory) {
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super.init(cellFactory: cellFactory)
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}
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func tableView(tableView: UITableView, observedEvent: Event<S>) {
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UIBindingObserver(UIElement: self) { tableViewDataSource, sectionModels in
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let sections = Array(sectionModels)
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tableViewDataSource.tableView(tableView, observedElements: sections)
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}.on(observedEvent)
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}
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}
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// Please take a look at `DelegateProxyType.swift`
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class RxTableViewReactiveArrayDataSource<Element>
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: _RxTableViewReactiveArrayDataSource
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, SectionedViewDataSourceType {
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typealias CellFactory = (UITableView, Int, Element) -> UITableViewCell
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var itemModels: [Element]? = nil
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func modelAtIndex(index: Int) -> Element? {
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return itemModels?[index]
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}
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func modelAtIndexPath(indexPath: NSIndexPath) throws -> Any {
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precondition(indexPath.section == 0)
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guard let item = itemModels?[indexPath.item] else {
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throw RxCocoaError.ItemsNotYetBound(object: self)
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}
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return item
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}
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let cellFactory: CellFactory
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init(cellFactory: CellFactory) {
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self.cellFactory = cellFactory
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}
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override func _tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
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return itemModels?.count ?? 0
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}
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override func _tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
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return cellFactory(tableView, indexPath.item, itemModels![indexPath.row])
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}
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// reactive
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func tableView(tableView: UITableView, observedElements: [Element]) {
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self.itemModels = observedElements
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tableView.reloadData()
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}
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}
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#endif
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