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https://github.com/vector-im/element-ios.git
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150 lines
6 KiB
Swift
150 lines
6 KiB
Swift
/*
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Copyright 2019 New Vector Ltd
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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import Foundation
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import UIKit
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import AVFoundation
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@objc protocol SingleImagePickerPresenterDelegate: class {
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func singleImagePickerPresenter(_ presenter: SingleImagePickerPresenter, didSelectImageData imageData: Data, withUTI uti: MXKUTI?)
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func singleImagePickerPresenterDidCancel(_ presenter: SingleImagePickerPresenter)
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}
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/// SingleImagePickerPresenter enables to present an image picker with single selection
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@objcMembers
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final class SingleImagePickerPresenter: NSObject {
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// MARK: - Properties
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// MARK: Private
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private let session: MXSession
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private weak var presentingViewController: UIViewController?
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private var cameraPresenter: CameraPresenter?
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private var mediaPickerPresenter: MediaPickerCoordinatorBridgePresenter?
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// MARK: Public
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weak var delegate: SingleImagePickerPresenterDelegate?
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// MARK: - Setup
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init(session: MXSession) {
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self.session = session
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}
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// MARK: - Public
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func present(from presentingViewController: UIViewController,
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sourceView: UIView?,
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sourceRect: CGRect,
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animated: Bool) {
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let alert = UIAlertController(title: nil, message: nil, preferredStyle: .actionSheet)
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let cameraAction = UIAlertAction(title: VectorL10n.imagePickerActionCamera, style: .default, handler: { _ in
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self.presentCamera(animated: animated)
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})
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let photoLibraryAction = UIAlertAction(title: VectorL10n.imagePickerActionLibrary, style: .default, handler: { _ in
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self.presentPhotoLibray(sourceView: sourceView, sourceRect: sourceRect, animated: animated)
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})
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let cancelAction = UIAlertAction(title: VectorL10n.cancel, style: .cancel, handler: { _ in
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})
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alert.addAction(cameraAction)
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alert.addAction(photoLibraryAction)
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alert.addAction(cancelAction)
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if let popoverPresentationController = alert.popoverPresentationController {
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popoverPresentationController.sourceView = sourceView
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popoverPresentationController.sourceRect = sourceRect
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}
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presentingViewController.present(alert, animated: animated, completion: nil)
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self.presentingViewController = presentingViewController
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}
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func dismiss(animated: Bool, completion: (() -> Void)?) {
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if let cameraPresenter = self.cameraPresenter {
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cameraPresenter.dismiss(animated: animated, completion: completion)
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} else if let mediaPickerPresenter = self.mediaPickerPresenter {
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mediaPickerPresenter.dismiss(animated: animated, completion: completion)
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}
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}
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// MARK: - Private
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private func presentCamera(animated: Bool) {
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guard let presentingViewController = self.presentingViewController else {
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return
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}
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let cameraPresenter = CameraPresenter()
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cameraPresenter.delegate = self
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cameraPresenter.presentCamera(from: presentingViewController, with: [.image], animated: animated)
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self.cameraPresenter = cameraPresenter
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}
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private func presentPhotoLibray(sourceView: UIView?, sourceRect: CGRect, animated: Bool) {
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guard let presentingViewController = self.presentingViewController else {
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return
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}
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let mediaPickerPresenter = MediaPickerCoordinatorBridgePresenter(session: self.session, mediaUTIs: [.image], allowsMultipleSelection: false)
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mediaPickerPresenter.delegate = self
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mediaPickerPresenter.present(from: presentingViewController, sourceView: sourceView, sourceRect: sourceRect, animated: animated)
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self.mediaPickerPresenter = mediaPickerPresenter
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}
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}
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// MARK: - CameraPresenterDelegate
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extension SingleImagePickerPresenter: CameraPresenterDelegate {
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func cameraPresenter(_ cameraPresenter: CameraPresenter, didSelectImageData imageData: Data, withUTI uti: MXKUTI?) {
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self.delegate?.singleImagePickerPresenter(self, didSelectImageData: imageData, withUTI: uti)
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}
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func cameraPresenterDidCancel(_ cameraPresenter: CameraPresenter) {
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self.delegate?.singleImagePickerPresenterDidCancel(self)
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}
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func cameraPresenter(_ cameraPresenter: CameraPresenter, didSelectVideoAt url: URL) {
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self.delegate?.singleImagePickerPresenterDidCancel(self)
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}
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}
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// MARK: - MediaPickerCoordinatorBridgePresenterDelegate
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extension SingleImagePickerPresenter: MediaPickerCoordinatorBridgePresenterDelegate {
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func mediaPickerCoordinatorBridgePresenter(_ coordinatorBridgePresenter: MediaPickerCoordinatorBridgePresenter, didSelectImageData imageData: Data, withUTI uti: MXKUTI?) {
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self.delegate?.singleImagePickerPresenter(self, didSelectImageData: imageData, withUTI: uti)
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}
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func mediaPickerCoordinatorBridgePresenter(_ coordinatorBridgePresenter: MediaPickerCoordinatorBridgePresenter, didSelectVideoAt url: URL) {
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self.delegate?.singleImagePickerPresenterDidCancel(self)
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}
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func mediaPickerCoordinatorBridgePresenter(_ coordinatorBridgePresenter: MediaPickerCoordinatorBridgePresenter, didSelectAssets assets: [PHAsset]) {
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self.delegate?.singleImagePickerPresenterDidCancel(self)
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}
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func mediaPickerCoordinatorBridgePresenterDidCancel(_ coordinatorBridgePresenter: MediaPickerCoordinatorBridgePresenter) {
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self.delegate?.singleImagePickerPresenterDidCancel(self)
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}
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}
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