//
// NCViewerRichdocument.swift
// Nextcloud
//
// Created by Marino Faggiana on 06/09/18.
// Copyright © 2018 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 UIKit
import WebKit
import NCCommunication
class NCViewerRichdocument: UIViewController, WKNavigationDelegate, WKScriptMessageHandler, NCSelectDelegate {
let appDelegate = UIApplication.shared.delegate as! AppDelegate
var webView = WKWebView()
var bottomConstraint: NSLayoutConstraint?
var documentController: UIDocumentInteractionController?
var link: String = ""
var metadata: tableMetadata = tableMetadata()
var imageIcon: UIImage?
// MARK: - View Life Cycle
required init?(coder: NSCoder) {
super.init(coder: coder)
}
override func viewDidLoad() {
super.viewDidLoad()
let config = WKWebViewConfiguration()
config.websiteDataStore = WKWebsiteDataStore.nonPersistent()
let contentController = config.userContentController
contentController.add(self, name: "RichDocumentsMobileInterface")
webView = WKWebView(frame: CGRect.zero, configuration: config)
webView.navigationDelegate = self
view.addSubview(webView)
webView.translatesAutoresizingMaskIntoConstraints = false
webView.leadingAnchor.constraint(equalTo: view.leadingAnchor, constant: 0).isActive = true
webView.rightAnchor.constraint(equalTo: view.rightAnchor, constant: 0).isActive = true
webView.topAnchor.constraint(equalTo: view.topAnchor, constant: 0).isActive = true
bottomConstraint = webView.bottomAnchor.constraint(equalTo: view.bottomAnchor, constant: 0)
bottomConstraint?.isActive = true
var request = URLRequest(url: URL(string: link)!)
request.addValue("true", forHTTPHeaderField: "OCS-APIRequest")
let language = NSLocale.preferredLanguages[0] as String
request.addValue(language, forHTTPHeaderField: "Accept-Language")
webView.customUserAgent = CCUtility.getUserAgent()
webView.load(request)
}
override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(animated)
appDelegate.activeViewController = self
//
NotificationCenter.default.addObserver(self, selector: #selector(favoriteFile(_:)), name: NSNotification.Name(rawValue: NCGlobal.shared.notificationCenterFavoriteFile), object: nil)
NotificationCenter.default.addObserver(self, selector: #selector(viewUnload), name: NSNotification.Name(rawValue: NCGlobal.shared.notificationCenterMenuDetailClose), object: nil)
NotificationCenter.default.addObserver(self, selector: #selector(self.grabFocus), name: NSNotification.Name(rawValue: NCGlobal.shared.notificationCenterRichdocumentGrabFocus), object: nil)
NotificationCenter.default.addObserver(self, selector: #selector(keyboardDidShow), name: UIResponder.keyboardDidShowNotification, object: nil)
NotificationCenter.default.addObserver(self, selector: #selector(keyboardWillHide), name: UIResponder.keyboardWillHideNotification, object: nil)
//
navigationItem.rightBarButtonItem = UIBarButtonItem(image: UIImage(named: "more")!.image(color: NCBrandColor.shared.label, size: 25), style: .plain, target: self, action: #selector(self.openMenuMore))
navigationItem.hidesBackButton = true
navigationController?.navigationBar.prefersLargeTitles = false
navigationItem.title = metadata.fileNameView
}
override func viewWillDisappear(_ animated: Bool) {
super.viewWillDisappear(animated)
if let navigationController = self.navigationController {
if !navigationController.viewControllers.contains(self) {
let functionJS = "OCA.RichDocuments.documentsMain.onClose()"
webView.evaluateJavaScript(functionJS) { _, _ in
print("close")
}
}
}
//
NotificationCenter.default.removeObserver(self, name: NSNotification.Name(rawValue: NCGlobal.shared.notificationCenterFavoriteFile), object: nil)
NotificationCenter.default.removeObserver(self, name: NSNotification.Name(rawValue: NCGlobal.shared.notificationCenterMenuDetailClose), object: nil)
NotificationCenter.default.removeObserver(self, name: NSNotification.Name(rawValue: NCGlobal.shared.notificationCenterRichdocumentGrabFocus), object: nil)
NotificationCenter.default.removeObserver(self, name: UIResponder.keyboardDidShowNotification, object: nil)
NotificationCenter.default.removeObserver(self, name: UIResponder.keyboardWillHideNotification, object: nil)
}
@objc func viewUnload() {
navigationController?.popViewController(animated: true)
}
// MARK: - NotificationCenter
@objc func favoriteFile(_ notification: NSNotification) {
guard let userInfo = notification.userInfo as NSDictionary?,
let ocId = userInfo["ocId"] as? String,
ocId == self.metadata.ocId,
let metadata = NCManageDatabase.shared.getMetadataFromOcId(ocId)
else { return }
self.metadata = metadata
}
@objc func keyboardDidShow(notification: Notification) {
guard let info = notification.userInfo else { return }
guard let frameInfo = info[UIResponder.keyboardFrameEndUserInfoKey] as? NSValue else { return }
let keyboardFrame = frameInfo.cgRectValue
let height = keyboardFrame.size.height
bottomConstraint?.constant = -height
}
@objc func keyboardWillHide(notification: Notification) {
bottomConstraint?.constant = 0
}
// MARK: - Action
@objc func openMenuMore() {
if imageIcon == nil { imageIcon = UIImage(named: "file_txt") }
NCViewer.shared.toggleMenu(viewController: self, metadata: metadata, webView: true, imageIcon: imageIcon)
}
// MARK: -
public func userContentController(_ userContentController: WKUserContentController, didReceive message: WKScriptMessage) {
if message.name == "RichDocumentsMobileInterface" {
if message.body as? String == "close" {
viewUnload()
}
if message.body as? String == "insertGraphic" {
let storyboard = UIStoryboard(name: "NCSelect", bundle: nil)
let navigationController = storyboard.instantiateInitialViewController() as! UINavigationController
let viewController = navigationController.topViewController as! NCSelect
viewController.delegate = self
viewController.typeOfCommandView = .select
viewController.enableSelectFile = true
viewController.includeImages = true
viewController.type = ""
self.present(navigationController, animated: true, completion: nil)
}
if message.body as? String == "share" {
NCFunctionCenter.shared.openShare(viewController: self, metadata: metadata, indexPage: .sharing)
}
if let param = message.body as? [AnyHashable: Any] {
if param["MessageName"] as? String == "downloadAs" {
if let values = param["Values"] as? [AnyHashable: Any] {
guard let type = values["Type"] as? String else { return }
guard let urlString = values["URL"] as? String else { return }
guard let url = URL(string: urlString) else { return }
let fileNameLocalPath = CCUtility.getDirectoryUserData() + "/" + metadata.fileNameWithoutExt
NCUtility.shared.startActivityIndicator(backgroundView: view, blurEffect: true)
NCCommunication.shared.download(serverUrlFileName: url, fileNameLocalPath: fileNameLocalPath, requestHandler: { _ in
}, taskHandler: { _ in
}, progressHandler: { _ in
}, completionHandler: { account, _, _, _, allHeaderFields, error, errorCode, errorDescription in
NCUtility.shared.stopActivityIndicator()
if errorCode == 0 && account == self.metadata.account {
var item = fileNameLocalPath
if let allHeaderFields = allHeaderFields {
if let disposition = allHeaderFields["Content-Disposition"] as? String {
let components = disposition.components(separatedBy: "filename=")
if let filename = components.last?.replacingOccurrences(of: "\"", with: "") {
item = CCUtility.getDirectoryUserData() + "/" + filename
_ = NCUtilityFileSystem.shared.moveFile(atPath: fileNameLocalPath, toPath: item)
}
}
}
if type == "print" {
let pic = UIPrintInteractionController.shared
let printInfo = UIPrintInfo.printInfo()
printInfo.outputType = UIPrintInfo.OutputType.general
printInfo.orientation = UIPrintInfo.Orientation.portrait
printInfo.jobName = "Document"
pic.printInfo = printInfo
pic.printingItem = URL(fileURLWithPath: item)
pic.present(from: CGRect.zero, in: self.view, animated: true, completionHandler: { _, _, _ in })
} else {
self.documentController = UIDocumentInteractionController()
self.documentController?.url = URL(fileURLWithPath: item)
self.documentController?.presentOptionsMenu(from: CGRect.zero, in: self.view, animated: true)
}
} else {
NCContentPresenter.shared.messageNotification("_error_", description: errorDescription, delay: NCGlobal.shared.dismissAfterSecond, type: NCContentPresenter.messageType.error, errorCode: errorCode)
}
})
}
} else if param["MessageName"] as? String == "fileRename" {
if let values = param["Values"] as? [AnyHashable: Any] {
guard let newName = values["NewName"] as? String else {
return
}
metadata.fileName = newName
metadata.fileNameView = newName
}
} else if param["MessageName"] as? String == "hyperlink" {
if let values = param["Values"] as? [AnyHashable: Any] {
guard let urlString = values["Url"] as? String else {
return
}
if let url = URL(string: urlString) {
UIApplication.shared.open(url)
}
}
}
}
if message.body as? String == "documentLoaded" {
print("documentLoaded")
}
if message.body as? String == "paste" {
// ?
}
}
}
// MARK: -
@objc func grabFocus() {
let functionJS = "OCA.RichDocuments.documentsMain.postGrabFocus()"
webView.evaluateJavaScript(functionJS) { _, _ in }
}
// MARK: -
func dismissSelect(serverUrl: String?, metadata: tableMetadata?, type: String, items: [Any], overwrite: Bool, copy: Bool, move: Bool) {
if serverUrl != nil && metadata != nil {
let path = CCUtility.returnFileNamePath(fromFileName: metadata!.fileName, serverUrl: serverUrl!, urlBase: appDelegate.urlBase, account: metadata!.account)!
NCCommunication.shared.createAssetRichdocuments(path: path) { account, url, errorCode, errorDescription in
if errorCode == 0 && account == self.appDelegate.account {
let functionJS = "OCA.RichDocuments.documentsMain.postAsset('\(metadata!.fileNameView)', '\(url!)')"
self.webView.evaluateJavaScript(functionJS, completionHandler: { _, _ in })
} else if errorCode != 0 {
NCContentPresenter.shared.messageNotification("_error_", description: errorDescription, delay: NCGlobal.shared.dismissAfterSecond, type: NCContentPresenter.messageType.error, errorCode: NCGlobal.shared.errorInternalError)
} else {
print("[LOG] It has been changed user during networking process, error.")
}
}
}
}
func select(_ metadata: tableMetadata!, serverUrl: String!) {
let path = CCUtility.returnFileNamePath(fromFileName: metadata!.fileName, serverUrl: serverUrl!, urlBase: appDelegate.urlBase, account: metadata!.account)!
NCCommunication.shared.createAssetRichdocuments(path: path) { account, url, errorCode, errorDescription in
if errorCode == 0 && account == self.appDelegate.account {
let functionJS = "OCA.RichDocuments.documentsMain.postAsset('\(metadata.fileNameView)', '\(url!)')"
self.webView.evaluateJavaScript(functionJS, completionHandler: { _, _ in })
} else if errorCode != 0 {
NCContentPresenter.shared.messageNotification("_error_", description: errorDescription, delay: NCGlobal.shared.dismissAfterSecond, type: NCContentPresenter.messageType.error, errorCode: NCGlobal.shared.errorInternalError)
} else {
print("[LOG] It has been changed user during networking process, error.")
}
}
}
// MARK: -
public func webView(_ webView: WKWebView, didReceive challenge: URLAuthenticationChallenge, completionHandler: @escaping (URLSession.AuthChallengeDisposition, URLCredential?) -> Void) {
if let serverTrust = challenge.protectionSpace.serverTrust {
completionHandler(Foundation.URLSession.AuthChallengeDisposition.useCredential, URLCredential(trust: serverTrust))
} else {
completionHandler(URLSession.AuthChallengeDisposition.useCredential, nil)
}
}
public func webView(_ webView: WKWebView, didStartProvisionalNavigation navigation: WKNavigation!) {
print("didStartProvisionalNavigation")
}
public func webView(_ webView: WKWebView, didReceiveServerRedirectForProvisionalNavigation navigation: WKNavigation!) {
print("didReceiveServerRedirectForProvisionalNavigation")
}
public func webView(_ webView: WKWebView, didFinish navigation: WKNavigation!) {
NCUtility.shared.stopActivityIndicator()
}
}
extension NCViewerRichdocument: UINavigationControllerDelegate {
override func didMove(toParent parent: UIViewController?) {
super.didMove(toParent: parent)
if parent == nil {
NotificationCenter.default.postOnMainThread(name: NCGlobal.shared.notificationCenterReloadDataSourceNetworkForced, userInfo: ["serverUrl": self.metadata.serverUrl])
}
}
}