mirror of
https://github.com/vector-im/element-ios.git
synced 2024-09-30 08:12:40 +00:00
148 lines
5 KiB
Swift
148 lines
5 KiB
Swift
|
/*
|
||
|
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
|
||
|
|
||
|
final class EncryptionKeysExportPresenter: NSObject {
|
||
|
|
||
|
// MARK: - Constants
|
||
|
|
||
|
private enum Constants {
|
||
|
static let keyExportFileName = "riot-keys.txt"
|
||
|
}
|
||
|
|
||
|
// MARK: - Properties
|
||
|
|
||
|
// MARK: Private
|
||
|
|
||
|
private let session: MXSession
|
||
|
private let activityViewPresenter: ActivityIndicatorPresenterType
|
||
|
private let keyExportFileURL: URL
|
||
|
|
||
|
private weak var presentingViewController: UIViewController?
|
||
|
private weak var sourceView: UIView?
|
||
|
private var encryptionKeysExportView: MXKEncryptionKeysExportView?
|
||
|
private var documentInteractionController: UIDocumentInteractionController?
|
||
|
|
||
|
// MARK: Public
|
||
|
|
||
|
// MARK: - Setup
|
||
|
|
||
|
init(session: MXSession) {
|
||
|
self.session = session
|
||
|
self.activityViewPresenter = ActivityIndicatorPresenter()
|
||
|
self.keyExportFileURL = URL(fileURLWithPath: NSTemporaryDirectory()).appendingPathComponent(Constants.keyExportFileName)
|
||
|
super.init()
|
||
|
}
|
||
|
|
||
|
deinit {
|
||
|
self.deleteKeyExportFile()
|
||
|
}
|
||
|
|
||
|
// MARK: - Public
|
||
|
|
||
|
func present(from viewController: UIViewController, sourceView: UIView?) {
|
||
|
self.presentingViewController = viewController
|
||
|
self.sourceView = sourceView
|
||
|
|
||
|
let keysExportView: MXKEncryptionKeysExportView = MXKEncryptionKeysExportView(matrixSession: self.session)
|
||
|
|
||
|
// Make sure the file is empty
|
||
|
self.deleteKeyExportFile()
|
||
|
|
||
|
keysExportView.show(in: viewController,
|
||
|
toExportKeysToFile: self.keyExportFileURL,
|
||
|
onLoading: { [weak self] (loading) in
|
||
|
|
||
|
guard let sself = self else {
|
||
|
return
|
||
|
}
|
||
|
|
||
|
if loading {
|
||
|
sself.activityViewPresenter.removeCurrentActivityIndicator(animated: false)
|
||
|
sself.activityViewPresenter.presentActivityIndicator(on: viewController.view, animated: true)
|
||
|
} else {
|
||
|
sself.activityViewPresenter.removeCurrentActivityIndicator(animated: true)
|
||
|
}
|
||
|
}, onComplete: { [weak self] (success) in
|
||
|
guard let sself = self else {
|
||
|
return
|
||
|
}
|
||
|
|
||
|
guard success else {
|
||
|
sself.encryptionKeysExportView = nil
|
||
|
return
|
||
|
}
|
||
|
|
||
|
sself.presentInteractionDocumentController()
|
||
|
})
|
||
|
|
||
|
self.encryptionKeysExportView = keysExportView
|
||
|
}
|
||
|
|
||
|
// MARK: - Private
|
||
|
|
||
|
private func presentInteractionDocumentController() {
|
||
|
|
||
|
let sourceRect: CGRect
|
||
|
|
||
|
guard let presentingView = self.presentingViewController?.view else {
|
||
|
self.encryptionKeysExportView = nil
|
||
|
return
|
||
|
}
|
||
|
|
||
|
if let sourceView = self.sourceView {
|
||
|
sourceRect = sourceView.convert(sourceView.bounds, to: presentingView)
|
||
|
} else {
|
||
|
sourceRect = presentingView.bounds
|
||
|
}
|
||
|
|
||
|
let documentInteractionController = UIDocumentInteractionController(url: self.keyExportFileURL)
|
||
|
documentInteractionController.delegate = self
|
||
|
|
||
|
if documentInteractionController.presentOptionsMenu(from: sourceRect, in: presentingView, animated: true) {
|
||
|
self.documentInteractionController = documentInteractionController
|
||
|
} else {
|
||
|
self.encryptionKeysExportView = nil
|
||
|
self.deleteKeyExportFile()
|
||
|
}
|
||
|
}
|
||
|
|
||
|
@objc private func deleteKeyExportFile() {
|
||
|
|
||
|
let fileManager = FileManager.default
|
||
|
|
||
|
if fileManager.fileExists(atPath: self.keyExportFileURL.path) {
|
||
|
try? fileManager.removeItem(atPath: self.keyExportFileURL.path)
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
// MARK: - UIDocumentInteractionControllerDelegate
|
||
|
extension EncryptionKeysExportPresenter: UIDocumentInteractionControllerDelegate {
|
||
|
|
||
|
// Note: This method is not called in all cases (see http://stackoverflow.com/a/21867096).
|
||
|
func documentInteractionController(_ controller: UIDocumentInteractionController, didEndSendingToApplication application: String?) {
|
||
|
self.deleteKeyExportFile()
|
||
|
self.documentInteractionController = nil
|
||
|
}
|
||
|
|
||
|
func documentInteractionControllerDidDismissOptionsMenu(_ controller: UIDocumentInteractionController) {
|
||
|
self.encryptionKeysExportView = nil
|
||
|
self.documentInteractionController = nil
|
||
|
}
|
||
|
}
|