132 lines
4.1 KiB
Swift
132 lines
4.1 KiB
Swift
//
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// Copyright (c) 2015 Max Sokolov https://twitter.com/max_sokolov
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy of
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// this software and associated documentation files (the "Software"), to deal in
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// the Software without restriction, including without limitation the rights to
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// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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// the Software, and to permit persons to whom the Software is furnished to do so,
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// subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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// IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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import UIKit
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import Foundation
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internal enum ActionHandler<T, E> {
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case actionBlock((data: ActionData<T, E>) -> Void)
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case actionReturnBlock((data: ActionData<T, E>) -> AnyObject)
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func call(data: ActionData<T, E>) -> AnyObject {
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switch (self) {
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case .actionBlock(let closure):
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closure(data: data)
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return true
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case .actionReturnBlock(let closure):
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return closure(data: data)
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}
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}
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}
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/**
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Responsible for building cells of given type and passing items to them.
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*/
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public class TableRowBuilder<I, C where C: UITableViewCell> : RowBuilder {
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private var actions = Dictionary<String, ActionHandler<I, C>>()
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private var items = [I]()
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public var reusableIdentifier: String
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public var numberOfRows: Int {
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get {
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return items.count
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}
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}
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public init(item: I, id: String) {
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reusableIdentifier = id
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items.append(item)
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}
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public init(items: [I]? = nil, id: String) {
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reusableIdentifier = id
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if items != nil {
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self.items.appendContentsOf(items!)
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}
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}
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public func appendItems(items: [I]) {
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self.items.appendContentsOf(items)
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}
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public func clear() {
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items.removeAll()
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}
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// MARK: Chaining actions
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public func action(key: String, action: (data: ActionData<I, C>) -> Void) -> Self {
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actions[key] = .actionBlock(action)
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return self
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}
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public func action(key: ActionType, action: (data: ActionData<I, C>) -> Void) -> Self {
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actions[key.rawValue] = .actionBlock(action)
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return self
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}
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public func action(key: ActionType, action: (data: ActionData<I, C>) -> AnyObject) -> Self {
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actions[key.rawValue] = .actionReturnBlock(action)
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return self
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}
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// MARK: Triggers
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public func triggerAction(key: String, cell: UITableViewCell?, indexPath: NSIndexPath, itemIndex: Int) -> AnyObject? {
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if let action = actions[key] {
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return action.call(ActionData(cell: cell as? C, indexPath: indexPath, item: items[itemIndex], itemIndex: itemIndex))
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}
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return nil
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}
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}
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/**
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Responsible for building configurable cells of given type and passing items to them.
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*/
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public class TableConfigurableRowBuilder<I, C: ConfigurableCell where C.Item == I, C: UITableViewCell> : TableRowBuilder<I, C> {
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public init(item: I) {
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super.init(item: item, id: C.reusableIdentifier())
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}
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public init(items: [I]? = nil) {
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super.init(items: items, id: C.reusableIdentifier())
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}
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public override func triggerAction(key: String, cell: UITableViewCell?, indexPath: NSIndexPath, itemIndex: Int) -> AnyObject? {
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(cell as? C)?.configureWithItem(items[itemIndex])
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return super.triggerAction(key, cell: cell, indexPath: indexPath, itemIndex: itemIndex)
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}
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}
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