//
// NCViewerImage.swift
// Nextcloud
//
// Created by Marino Faggiana on 18/02/20.
// Copyright © 2020 Marino Faggiana. All rights reserved.
//
// Author Marino Faggiana <marino.faggiana@nextcloud.com>
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//
import Foundation
import NCCommunication
class NCViewerImage: NSObject {
private weak var metadata: tableMetadata?
private let appDelegate = UIApplication.shared.delegate as! AppDelegate
private var viewerImageViewController: NCViewerImageViewController?
private var metadatas = [tableMetadata]()
private var favoriteFilterImage: Bool = false
private var mediaFilterImage: Bool = false
private var offlineFilterImage: Bool = false
private weak var detailViewController: NCDetailViewController?
private var videoLayer: AVPlayerLayer?
private var viewerImageViewControllerLongPressInProgress = false
init(_ metadata: tableMetadata, metadatas: [tableMetadata], detailViewController: NCDetailViewController, favoriteFilterImage: Bool, mediaFilterImage: Bool, offlineFilterImage: Bool) {
self.metadata = metadata
self.metadatas = metadatas
self.detailViewController = detailViewController
self.favoriteFilterImage = favoriteFilterImage
self.mediaFilterImage = mediaFilterImage
self.offlineFilterImage = offlineFilterImage
}
func viewImage() {
guard let detailViewController = detailViewController else { return }
viewerImageViewController = NCViewerImageViewController(index: 0, dataSource: self, delegate: self)
for view in detailViewController.backgroundView.subviews { view.removeFromSuperview() }
if let metadatas = NCViewerImageCommon.shared.getMetadatasDatasource(metadata: self.metadata, metadatas: self.metadatas, favoriteDatasorce: favoriteFilterImage, mediaDatasorce: mediaFilterImage, offLineDatasource: offlineFilterImage) {
var index = 0
if let indexFound = metadatas.firstIndex(where: { $0.ocId == self.metadata?.ocId }) { index = indexFound }
self.metadatas = metadatas
self.viewerImageViewController = NCViewerImageViewController(index: index, dataSource: self, delegate: self)
if viewerImageViewController != nil {
detailViewController.backgroundView.image = nil
viewerImageViewController!.view.isHidden = true
viewerImageViewController!.enableInteractiveDismissal = true
detailViewController.addChild(viewerImageViewController!)
detailViewController.backgroundView.addSubview(viewerImageViewController!.view)
viewerImageViewController!.view.frame = CGRect(x: 0, y: 0, width: detailViewController.backgroundView.frame.width, height: detailViewController.backgroundView.frame.height)
viewerImageViewController!.view.autoresizingMask = [.flexibleWidth, .flexibleHeight]
viewerImageViewController!.didMove(toParent: detailViewController)
DispatchQueue.main.asyncAfter(deadline: .now() + .milliseconds(100)) {
self.viewerImageViewController!.changeInViewSize(to: detailViewController.backgroundView.frame.size)
self.viewerImageViewController!.view.isHidden = false
}
}
}
NotificationCenter.default.addObserver(self, selector: #selector(self.synchronizationMedia(_:)), name: NSNotification.Name(rawValue: k_notificationCenter_synchronizationMedia), object: nil)
NotificationCenter.default.addObserver(self, selector: #selector(self.changeDisplayMode), name: NSNotification.Name(rawValue: k_notificationCenter_splitViewChangeDisplayMode), object: nil)
NotificationCenter.default.addObserver(self, selector: #selector(self.downloadFile(_:)), name: NSNotification.Name(rawValue: k_notificationCenter_downloadFile), object: nil)
NotificationCenter.default.addObserver(self, selector: #selector(self.deleteFile(_:)), name: NSNotification.Name(rawValue: k_notificationCenter_deleteFile), object: nil)
NotificationCenter.default.addObserver(self, selector: #selector(self.renameFile(_:)), name: NSNotification.Name(rawValue: k_notificationCenter_renameFile), object: nil)
NotificationCenter.default.addObserver(self, selector: #selector(self.moveFile(_:)), name: NSNotification.Name(rawValue: k_notificationCenter_moveFile), object: nil)
}
//MARK: - NotificationCenter
@objc func changeDisplayMode() {
guard let detailViewController = detailViewController else { return }
NCViewerImageCommon.shared.imageChangeSizeView(viewerImageViewController: viewerImageViewController, size: detailViewController.backgroundView.frame.size, metadata: metadata)
}
@objc func synchronizationMedia(_ notification: NSNotification) {
if let userInfo = notification.userInfo as NSDictionary? {
if let type = userInfo["type"] as? String {
if self.mediaFilterImage {
if let metadatas = appDelegate.activeMedia.sectionDatasource.metadatas as? [tableMetadata] {
self.metadatas = metadatas
}
if type == "delete" {
if metadatas.count > 0 {
var index = viewerImageViewController!.index - 1
if index < 0 { index = 0}
self.metadata = metadatas[index]
viewImage()
} else {
detailViewController?.viewUnload()
}
}
if type == "rename" || type == "move" {
viewerImageViewController?.reloadContentViews()
}
}
}
}
}
@objc func moveFile(_ notification: NSNotification) {
deleteFile(notification)
}
@objc func deleteFile(_ notification: NSNotification) {
if let userInfo = notification.userInfo as NSDictionary? {
if let metadata = userInfo["metadata"] as? tableMetadata, let errorCode = userInfo["errorCode"] as? Int {
if errorCode != 0 || metadata.account != self.metadata?.account || metadata.serverUrl != self.metadata?.serverUrl { return }
if !mediaFilterImage {
if let metadatas = NCViewerImageCommon.shared.getMetadatasDatasource(metadata: self.metadata, metadatas: self.metadatas, favoriteDatasorce: favoriteFilterImage, mediaDatasorce: mediaFilterImage, offLineDatasource: offlineFilterImage) {
var index = viewerImageViewController!.index - 1
if index < 0 { index = 0}
self.metadata = metadatas[index]
viewImage()
} else {
detailViewController?.viewUnload()
}
}
}
}
}
@objc func renameFile(_ notification: NSNotification) {
if let userInfo = notification.userInfo as NSDictionary? {
if let metadata = userInfo["metadata"] as? tableMetadata, let errorCode = userInfo["errorCode"] as? Int {
if errorCode != 0 || metadata.account != self.metadata?.account || metadata.serverUrl != self.metadata?.serverUrl { return }
if !mediaFilterImage {
if NCViewerImageCommon.shared.getMetadatasDatasource(metadata: self.metadata, metadatas: self.metadatas, favoriteDatasorce: favoriteFilterImage, mediaDatasorce: mediaFilterImage, offLineDatasource: offlineFilterImage) != nil {
viewImage()
} else {
detailViewController?.viewUnload()
}
}
}
}
}
@objc func downloadFile(_ notification: NSNotification) {
if let userInfo = notification.userInfo as NSDictionary? {
if let metadata = userInfo["metadata"] as? tableMetadata, let errorCode = userInfo["errorCode"] as? Int {
if metadata.account != self.metadata?.account || metadata.serverUrl != self.metadata?.serverUrl { return }
if errorCode == 0 {
viewerImageViewController?.reloadContentViews()
}
}
}
}
}
//MARK: - viewerImageViewController - Delegate/DataSource
extension NCViewerImage: NCViewerImageViewControllerDelegate, NCViewerImageViewControllerDataSource {
func numberOfItems(in viewerImageViewController: NCViewerImageViewController) -> Int {
return metadatas.count
}
func viewerImageViewController(_ viewerImageViewController: NCViewerImageViewController, imageAt index: Int, completion: @escaping (_ index: Int, _ image: UIImage?, _ metadata: tableMetadata, _ zoomScale: ZoomScale?, _ error: Error?) -> Void) {
if index >= metadatas.count { return }
guard let detailViewController = detailViewController else { return }
let metadata = metadatas[index]
let isPreview = CCUtility.fileProviderStorageIconExists(metadata.ocId, fileNameView: metadata.fileNameView)
let isImage = CCUtility.fileProviderStorageSize(metadata.ocId, fileNameView: metadata.fileNameView) > 0
// Refresh self metadata && title
if viewerImageViewController.index < metadatas.count {
self.metadata = metadatas[viewerImageViewController.index]
detailViewController.metadata = self.metadata
detailViewController.navigationController?.navigationBar.topItem?.title = self.metadata!.fileNameView
}
// Status Current
if index == viewerImageViewController.currentItemIndex {
statusViewImage(metadata: metadata, viewerImageViewController: viewerImageViewController)
}
// Preview for Video
if metadata.typeFile == k_metadataTypeFile_video && !isPreview && isImage {
CCGraphics.createNewImage(from: metadata.fileNameView, ocId: metadata.ocId, filterGrayScale: false, typeFile: metadata.typeFile, writeImage: true)
}
// Original only for actual
if metadata.typeFile == k_metadataTypeFile_image && isImage && index == viewerImageViewController.index {
if let image = NCViewerImageCommon.shared.getImage(metadata: metadata) {
completion(index, image, metadata, ZoomScale.default, nil)
} else {
completion(index, NCViewerImageCommon.shared.getImageOffOutline(frame: detailViewController.view.frame, type: metadata.typeFile), metadata, ZoomScale.default, nil)
}
// HEIC
} else if metadata.contentType == "image/heic" && CCUtility.fileProviderStorageSize(metadata.ocId, fileNameView: metadata.fileNameView) == 0 && metadata.hasPreview == false {
let serverUrlFileName = metadata.serverUrl + "/" + metadata.fileName
let fileNameLocalPath = CCUtility.getDirectoryProviderStorageOcId(metadata.ocId, fileNameView: metadata.fileName)!
_ = NCCommunication.sharedInstance.download(serverUrlFileName: serverUrlFileName, fileNameLocalPath: fileNameLocalPath, account: metadata.account, progressHandler: { (progress) in }) { (account, etag, date, length, errorCode, errorDescription) in
if errorCode == 0 && account == metadata.account {
_ = NCManageDatabase.sharedInstance.addLocalFile(metadata: metadata)
if let image = UIImage.init(contentsOfFile: fileNameLocalPath) {
CCGraphics.createNewImage(from: metadata.fileNameView, ocId: metadata.ocId, filterGrayScale: false, typeFile: metadata.typeFile, writeImage: true)
completion(index, image, metadata, ZoomScale.default, nil)
} else {
completion(index, NCViewerImageCommon.shared.getImageOffOutline(frame: detailViewController.view.frame, type: metadata.typeFile), metadata, ZoomScale.default, nil)
}
} else if errorCode != 0 {
completion(index, NCViewerImageCommon.shared.getImageOffOutline(frame: detailViewController.view.frame, type: metadata.typeFile), metadata, ZoomScale.default, nil)
}
}
// Preview
} else if isPreview {
if let image = NCViewerImageCommon.shared.getThumbnailImage(metadata: metadata) {
completion(index, image, metadata, ZoomScale.default, nil)
} else {
completion(index, NCViewerImageCommon.shared.getImageOffOutline(frame: detailViewController.view.frame, type: metadata.typeFile), metadata, ZoomScale.default, nil)
}
} else if metadata.hasPreview {
let fileNamePath = CCUtility.returnFileNamePath(fromFileName: metadata.fileName, serverUrl: metadata.serverUrl, activeUrl: appDelegate.activeUrl)!
let fileNameLocalPath = CCUtility.getDirectoryProviderStorageIconOcId(metadata.ocId, fileNameView: metadata.fileNameView)!
NCCommunication.sharedInstance.downloadPreview(serverUrl: appDelegate.activeUrl, fileNamePath: fileNamePath, fileNameLocalPath: fileNameLocalPath, width: CGFloat(k_sizePreview), height: CGFloat(k_sizePreview), account: metadata.account) { (account, data, errorCode, errorMessage) in
if errorCode == 0 && data != nil {
completion(index, UIImage.init(data: data!), metadata, ZoomScale.default, nil)
} else {
completion(index, NCViewerImageCommon.shared.getImageOffOutline(frame: detailViewController.view.frame, type: metadata.typeFile), metadata, ZoomScale.default, nil)
}
}
} else {
completion(index, NCViewerImageCommon.shared.getImageOffOutline(frame: detailViewController.view.frame, type: metadata.typeFile), metadata, ZoomScale.default, nil)
}
}
func viewerImageViewController(_ viewerImageViewController: NCViewerImageViewController, didChangeFocusTo index: Int, view: NCViewerImageContentView, metadata: tableMetadata) {
if metadata.typeFile == k_metadataTypeFile_image {
DispatchQueue.global().async {
if let image = NCViewerImageCommon.shared.getImage(metadata: metadata) {
DispatchQueue.main.asyncAfter(deadline: .now() + .milliseconds(400)) {
view.image = image
}
}
}
}
statusViewImage(metadata: metadata, viewerImageViewController: viewerImageViewController)
}
func viewerImageViewControllerTap(_ viewerImageViewController: NCViewerImageViewController, metadata: tableMetadata) {
guard let detailViewController = detailViewController else { return }
guard let navigationController = detailViewController.navigationController else { return }
if metadata.typeFile == k_metadataTypeFile_image {
if navigationController.isNavigationBarHidden {
detailViewController.navigateControllerBarHidden(false)
viewerImageViewController.statusView.isHidden = false
} else {
detailViewController.navigateControllerBarHidden(true)
viewerImageViewController.statusView.isHidden = true
}
NCViewerImageCommon.shared.imageChangeSizeView(viewerImageViewController: viewerImageViewController, size: detailViewController.backgroundView.frame.size, metadata: metadata)
} else {
if let viewerImageVideo = UIStoryboard(name: "NCViewerImageVideo", bundle: nil).instantiateInitialViewController() as? NCViewerImageVideo {
viewerImageVideo.metadata = metadata
detailViewController.present(viewerImageVideo, animated: false) { }
}
}
statusViewImage(metadata: metadata, viewerImageViewController: viewerImageViewController)
}
func viewerImageViewControllerLongPressBegan(_ viewerImageViewController: NCViewerImageViewController, metadata: tableMetadata) {
viewerImageViewControllerLongPressInProgress = true
let fileName = (metadata.fileNameView as NSString).deletingPathExtension + ".mov"
if let metadata = NCManageDatabase.sharedInstance.getMetadata(predicate: NSPredicate(format: "account == %@ AND serverUrl == %@ AND fileNameView LIKE[c] %@", metadata.account, metadata.serverUrl, fileName)) {
if CCUtility.fileProviderStorageSize(metadata.ocId, fileNameView: metadata.fileNameView) > 0 {
viewMOV(viewerImageViewController: viewerImageViewController, metadata: metadata)
} else {
let serverUrlFileName = metadata.serverUrl + "/" + metadata.fileName
let fileNameLocalPath = CCUtility.getDirectoryProviderStorageOcId(metadata.ocId, fileNameView: metadata.fileName)!
_ = NCCommunication.sharedInstance.download(serverUrlFileName: serverUrlFileName, fileNameLocalPath: fileNameLocalPath, account: metadata.account, progressHandler: { (progress) in
}) { (account, etag, date, length, errorCode, errorDescription) in
if errorCode == 0 && account == metadata.account {
_ = NCManageDatabase.sharedInstance.addLocalFile(metadata: metadata)
self.viewMOV(viewerImageViewController: viewerImageViewController, metadata: metadata)
}
}
}
}
}
func viewerImageViewControllerLongPressEnded(_ viewerImageViewController: NCViewerImageViewController, metadata: tableMetadata) {
viewerImageViewControllerLongPressInProgress = false
appDelegate.player?.pause()
videoLayer?.removeFromSuperlayer()
}
func viewerImageViewControllerDismiss() {
detailViewController?.viewUnload()
}
@objc func downloadImage() {
guard let metadata = self.metadata else {return }
metadata.session = k_download_session
metadata.sessionError = ""
metadata.sessionSelector = ""
metadata.status = Int(k_metadataStatusWaitDownload)
self.metadata = NCManageDatabase.sharedInstance.addMetadata(metadata)
if let index = metadatas.firstIndex(where: { $0.ocId == metadata.ocId }) {
metadatas[index] = self.metadata!
}
appDelegate.startLoadAutoDownloadUpload()
}
func saveLivePhoto(metadata: tableMetadata, metadataMov: tableMetadata) {
let fileNameImage = URL(fileURLWithPath: CCUtility.getDirectoryProviderStorageOcId(metadata.ocId, fileNameView: metadata.fileNameView)!)
let fileNameMov = URL(fileURLWithPath: CCUtility.getDirectoryProviderStorageOcId(metadataMov.ocId, fileNameView: metadataMov.fileNameView)!)
NCLivePhoto.generate(from: fileNameImage, videoURL: fileNameMov, progress: { progress in
self.detailViewController?.progress(Float(progress))
}, completion: { livePhoto, resources in
self.detailViewController?.progress(0)
if resources != nil {
NCLivePhoto.saveToLibrary(resources!) { (result) in
if !result {
NCContentPresenter.shared.messageNotification("_error_", description: "_livephoto_save_error_", delay: TimeInterval(k_dismissAfterSecond), type: NCContentPresenter.messageType.error, errorCode: Int(k_CCErrorInternalError))
}
}
} else {
NCContentPresenter.shared.messageNotification("_error_", description: "_livephoto_save_error_", delay: TimeInterval(k_dismissAfterSecond), type: NCContentPresenter.messageType.error, errorCode: Int(k_CCErrorInternalError))
}
})
}
func statusViewImage(metadata: tableMetadata, viewerImageViewController: NCViewerImageViewController) {
var colorStatus: UIColor = UIColor.white.withAlphaComponent(0.8)
if detailViewController?.view.backgroundColor?.isLight() ?? true { colorStatus = UIColor.black.withAlphaComponent(0.8) }
if NCUtility.sharedInstance.hasMOV(metadata: metadata) != nil {
viewerImageViewController.statusView.image = CCGraphics.changeThemingColorImage(UIImage.init(named: "livePhoto"), width: 100, height: 100, color: colorStatus)
} else if metadata.typeFile == k_metadataTypeFile_video || metadata.typeFile == k_metadataTypeFile_audio {
viewerImageViewController.statusView.image = CCGraphics.changeThemingColorImage(UIImage.init(named: "play"), width: 100, height: 100, color: colorStatus)
} else {
viewerImageViewController.statusView.image = nil
}
}
func viewMOV(viewerImageViewController: NCViewerImageViewController, metadata: tableMetadata) {
if !viewerImageViewControllerLongPressInProgress { return }
appDelegate.player = AVPlayer(url: URL(fileURLWithPath: CCUtility.getDirectoryProviderStorageOcId(metadata.ocId, fileNameView: metadata.fileNameView)!))
videoLayer = AVPlayerLayer(player: appDelegate.player)
if videoLayer != nil {
videoLayer!.frame = viewerImageViewController.view.frame
videoLayer!.videoGravity = AVLayerVideoGravity.resizeAspect
viewerImageViewController.view.layer.addSublayer(videoLayer!)
appDelegate.player?.play()
}
}
}