ivan.smolin
e7eb1bd51f
Update: GeneralDataLoadingViewModel now can handle state changes and result of data source. Previously it was possible only in view controller. Add: GeneralDataLoadingHandler protocol, that defines methods for common data loading states handling. Add: resultObservable and resultDriver properties to GeneralDataLoadingViewModel. Add: hidesWhenStopped option to SpinnerView, so you can stop animation without hiding image inside it. Update: Migrate to Swift 4.2 & Xcode 10. Update dependencies.
60 lines
2.2 KiB
Swift
60 lines
2.2 KiB
Swift
//
|
|
// Copyright (c) 2018 Touch Instinct
|
|
//
|
|
// Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
// of this software and associated documentation files (the Software), to deal
|
|
// in the Software without restriction, including without limitation the rights
|
|
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
// copies of the Software, and to permit persons to whom the Software is
|
|
// furnished to do so, subject to the following conditions:
|
|
//
|
|
// The above copyright notice and this permission notice shall be included in
|
|
// all copies or substantial portions of the Software.
|
|
//
|
|
// THE SOFTWARE IS PROVIDED AS IS, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
// THE SOFTWARE.
|
|
//
|
|
|
|
import RxSwift
|
|
import RxCocoa
|
|
|
|
public extension GeneralDataLoadingViewModel {
|
|
|
|
/// Manually update state to result with given value.
|
|
///
|
|
/// - Parameter newResult: New value to use as result.
|
|
func updateResultManually(to newResult: ResultType) {
|
|
updateStateManually(to: .result(newResult: newResult, from: .just(newResult)))
|
|
}
|
|
|
|
/// Emit elements of ResultType from state observable.
|
|
var resultObservable: Observable<ResultType> {
|
|
return loadingStateObservable.flatMap { state -> Observable<ResultType> in
|
|
switch state {
|
|
case .result(let newResult, _):
|
|
return .just(newResult)
|
|
default:
|
|
return .empty()
|
|
}
|
|
}
|
|
}
|
|
|
|
/// Emit elements of ResultType from state driver.
|
|
var resultDriver: Driver<ResultType> {
|
|
return loadingStateDriver.flatMap { state -> Driver<ResultType> in
|
|
switch state {
|
|
case .result(let newResult, _):
|
|
return .just(newResult)
|
|
default:
|
|
return .empty()
|
|
}
|
|
}
|
|
}
|
|
|
|
}
|