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//
// NCViewerNextcloudText.swift
// Nextcloud
//
// Created by Marino Faggiana on 12/12/19.
// Copyright © 2019 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
class NCViewerNextcloudText: UIViewController, WKNavigationDelegate, WKScriptMessageHandler {
let appDelegate = UIApplication.shared.delegate as! AppDelegate
var webView = WKWebView()
var bottomConstraint: NSLayoutConstraint?
var link: String = ""
var editor: 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()
navigationItem.rightBarButtonItem = UIBarButtonItem(image: UIImage(named: "more")!.image(color: NCBrandColor.shared.label, size: 25), style: .plain, target: self, action: #selector(self.openMenuMore))
navigationController?.navigationBar.prefersLargeTitles = false
navigationItem.title = metadata.fileNameView
let config = WKWebViewConfiguration()
config.websiteDataStore = WKWebsiteDataStore.nonPersistent()
let contentController = config.userContentController
contentController.add(self, name: "DirectEditingMobileInterface")
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")
if editor == NCGlobal.shared.editorOnlyoffice {
webView.customUserAgent = NCUtility.shared.getCustomUserAgentOnlyOffice()
} else {
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(keyboardDidShow), name: UIResponder.keyboardDidShowNotification, object: nil)
NotificationCenter.default.addObserver(self, selector: #selector(keyboardWillHide), name: UIResponder.keyboardWillHideNotification, object: nil)
}
override func viewWillDisappear(_ animated: Bool) {
super.viewWillDisappear(animated)
if let navigationController = self.navigationController {
if !navigationController.viewControllers.contains(self) {
}
}
//
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: 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) {
if let userInfo = notification.userInfo as NSDictionary? {
if let ocId = userInfo["ocId"] as? String, let metadata = NCManageDatabase.shared.getMetadataFromOcId(ocId) {
if metadata.ocId == self.metadata.ocId {
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 == "DirectEditingMobileInterface" {
if message.body as? String == "close" {
viewUnload()
}
if message.body as? String == "share" {
NCFunctionCenter.shared.openShare(viewController: self, metadata: metadata, indexPage: .sharing)
}
if message.body as? String == "loading" {
print("loading")
}
if message.body as? String == "loaded" {
print("loaded")
}
if message.body as? String == "paste" {
self.paste(self)
}
}
}
// 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 NCViewerNextcloudText: 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])
}
}
}
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