74 lines
2.6 KiB
Swift
74 lines
2.6 KiB
Swift
//
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// Copyright (c) 2017 Touch Instinct
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the Software), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, 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
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// all 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,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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//
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import RxSwift
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import RxCocoa
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public final class GeneralLoadingViewModelConfiguration<T>: LoadingConfiguration {
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public typealias DataSourceType = Single<T>
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public typealias EmptyResultChecker = (T) -> Bool
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public typealias LoadingStateType = GeneralLoadingState<DataSourceType>
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private let stateVariable = Variable<LoadingStateType>(.initialState)
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private var currentRequestDisposable: Disposable?
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public let scheduler = SerialDispatchQueueScheduler(qos: .default)
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public let dataSource: DataSourceType
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public let emptyResultChecker: EmptyResultChecker
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public init(dataSource: DataSourceType, emptyResultChecker: @escaping EmptyResultChecker) {
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self.dataSource = dataSource
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self.emptyResultChecker = emptyResultChecker
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}
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public var loadingObservable: DataSourceType {
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return dataSource
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}
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public func isEmptyResult(result: T) -> Bool {
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return emptyResultChecker(result)
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}
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public var stateDriver: Driver<LoadingStateType> {
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return stateVariable.asDriver()
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}
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public var state: GeneralLoadingState<DataSourceType> {
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get {
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return stateVariable.value
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}
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set {
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stateVariable.value = newValue
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}
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}
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public func resetDataSource() {
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currentRequestDisposable?.dispose()
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}
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public func storeCurrentRequestDisposable(_ disposable: Disposable) {
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currentRequestDisposable = disposable
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}
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}
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