element-ios/Riot/Modules/MediaPicker/MediaPickerCoordinatorBridg...

125 lines
4.8 KiB
Swift

// File created from FlowTemplate
// $ createRootCoordinator.sh Test MediaPicker
/*
Copyright 2019 New Vector Ltd
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
import Foundation
@objc protocol MediaPickerCoordinatorBridgePresenterDelegate {
func mediaPickerCoordinatorBridgePresenter(_ coordinatorBridgePresenter: MediaPickerCoordinatorBridgePresenter, didSelectImageData imageData: Data, withUTI uti: MXKUTI?)
func mediaPickerCoordinatorBridgePresenter(_ coordinatorBridgePresenter: MediaPickerCoordinatorBridgePresenter, didSelectVideo videoAsset: AVAsset)
func mediaPickerCoordinatorBridgePresenter(_ coordinatorBridgePresenter: MediaPickerCoordinatorBridgePresenter, didSelectAssets assets: [PHAsset])
func mediaPickerCoordinatorBridgePresenterDidCancel(_ coordinatorBridgePresenter: MediaPickerCoordinatorBridgePresenter)
}
/// MediaPickerCoordinatorBridgePresenter enables to start MediaPickerCoordinator from a view controller.
/// This bridge is used while waiting for global usage of coordinator pattern.
@objcMembers
final class MediaPickerCoordinatorBridgePresenter: NSObject {
// MARK: - Properties
// MARK: Private
private let session: MXSession
private let mediaUTIs: [MXKUTI]
private let allowsMultipleSelection: Bool
private var coordinator: MediaPickerCoordinator?
// MARK: Public
weak var delegate: MediaPickerCoordinatorBridgePresenterDelegate?
// MARK: - Setup
init(session: MXSession, mediaUTIs: [MXKUTI], allowsMultipleSelection: Bool) {
self.session = session
self.mediaUTIs = mediaUTIs
self.allowsMultipleSelection = allowsMultipleSelection
super.init()
}
// MARK: - Public
func present(from viewController: UIViewController,
sourceView: UIView?,
sourceRect: CGRect,
animated: Bool) {
let mediaPickerCoordinator = MediaPickerCoordinator(session: self.session, mediaUTIs: mediaUTIs, allowsMultipleSelection: self.allowsMultipleSelection)
mediaPickerCoordinator.delegate = self
let mediaPickerPresentable = mediaPickerCoordinator.toPresentable()
if let sourceView = sourceView {
mediaPickerPresentable.modalPresentationStyle = .popover
if let popoverPresentationController = mediaPickerPresentable.popoverPresentationController {
popoverPresentationController.sourceView = sourceView
let finalSourceRect: CGRect
if sourceRect != CGRect.null {
finalSourceRect = sourceRect
} else {
finalSourceRect = sourceView.bounds
}
popoverPresentationController.sourceRect = finalSourceRect
}
}
viewController.present(mediaPickerPresentable, animated: animated, completion: nil)
mediaPickerCoordinator.start()
self.coordinator = mediaPickerCoordinator
}
func dismiss(animated: Bool, completion: (() -> Void)?) {
guard let coordinator = self.coordinator else {
return
}
coordinator.toPresentable().dismiss(animated: animated) {
self.coordinator = nil
if let completion = completion {
completion()
}
}
}
}
// MARK: - MediaPickerCoordinatorDelegate
extension MediaPickerCoordinatorBridgePresenter: MediaPickerCoordinatorDelegate {
func mediaPickerCoordinator(_ coordinator: MediaPickerCoordinatorType, didSelectImageData imageData: Data, withUTI uti: MXKUTI?) {
self.delegate?.mediaPickerCoordinatorBridgePresenter(self, didSelectImageData: imageData, withUTI: uti)
}
func mediaPickerCoordinator(_ coordinator: MediaPickerCoordinatorType, didSelectVideo videoAsset: AVAsset) {
self.delegate?.mediaPickerCoordinatorBridgePresenter(self, didSelectVideo: videoAsset)
}
func mediaPickerCoordinator(_ coordinator: MediaPickerCoordinatorType, didSelectAssets assets: [PHAsset]) {
self.delegate?.mediaPickerCoordinatorBridgePresenter(self, didSelectAssets: assets)
}
func mediaPickerCoordinatorDidCancel(_ coordinator: MediaPickerCoordinatorType) {
self.delegate?.mediaPickerCoordinatorBridgePresenterDidCancel(self)
}
}