I could find a way to open a specific browser (with macOS and Swift):
#IBAction func frx(_ sender: NSButton) {
NSWorkspace.shared.open(URL(fileURLWithPath: "/Applications/Firefox.app"))
}
Is it possible to give to that Firefox window a new url in a posterior moment and reload the page? (Give the address not when I launch the application but later)
struct Firefox {
static func open(path: String) {
let ff_url = NSURL(fileURLWithPath: "/Applications/Firefox.app", isDirectory: true) as URL
if let www_url = URL(string: path) {
NSWorkspace.shared.open([www_url], withApplicationAt: ff_url, configuration: NSWorkspace.OpenConfiguration()) { app, error in
if let error = error {
// handle error
}
if let _ = app {
// handle success
}
}
} else {
// handle error
}
}
}
Related
i have a list of music at my firebase real time database and i am retriving them but i have 1000 musics data and i want to show loader when i reading data and stop loader when if there is a error(internet connection, or something else) or reading completed.
when i turn off the internet i couldn't get the data and can't stop loader to show error alert like there is no internet connection.
please help me how to handle that problem.
here is my code
didload function called from viewdidload()
private var musicArray = [ItemModal]() {
didSet {
view?.updateTableView()
}
}
func didLoad() {
view?.showLoader()
getAllMusics { ItemModal in
self.musicArray = ItemModal
self.view?.hideLoader()
}
}
func getAllMusics(completion: #escaping ([ItemModal]) -> Void) {
var musicArray = [ItemModal]()
ref.child("music").observeSingleEvent(of: .value) { snapshot in
let enumerator = snapshot.children
while let rest = enumerator.nextObject() as? DataSnapshot {
guard let data = try? JSONSerialization.data(withJSONObject: rest.value as Any, options: []) else { return }
if let itemModal = try? JSONDecoder().decode(ItemModal.self, from: data) {
musicArray.append(itemModal)
}
}
completion(musicArray)
}
}
You can use reachability function by using https://github.com/ashleymills/Reachability.swift. To get to notify when the internet is turned off, you can implement reachabilityChanged Notification. In the selector method of reachabilityChanged, you can hide the loader.
override func viewDidLoad() {
super.viewDidLoad()
NotificationCenter.default.addObserver(self, selector: #selector(reachabilityChanged), name: .reachabilityChanged)
}
#objc func changed() {
if reachability?.isReachable {
//Continue success implementation
} else {
view?.hideLoder
//Implement Error handling
}
}
I am trying to make a document based app in swiftUI with a custom UI. I want iCloud capabilities in my app. I am trying to use iCloud Document (No cloudKit) way for storing data on iCloud container. I am using UIDocument and it's working. It's storing data to iCloud and I am able to retrieve it back.
Now the thing is when I run the app on two devices (iphone and iPad) and make changes to a file on one device, the changes are not reflecting on the other device while the file or say app is open. I have to close the app and relaunch it to see the changes.
I know I have to implement NSMetadataQuery to achieve this but I am struggling with it. I don't know any objective-C. I have been searching on the internet for a good article but could not find any. Can you please tell how do I implement this feature in my app. I have attach the working code of UIDocument and my Model class.
Thank you in advance !
UIDocument
class NoteDocument: UIDocument {
var notes = [Note]()
override func load(fromContents contents: Any, ofType typeName: String?) throws {
if let contents = contents as? Data {
if let arr = try? PropertyListDecoder().decode([Note].self, from: contents) {
self.notes = arr
return
}
}
//if we get here, there was some kind of problem
throw NSError(domain: "NoDataDomain", code: -1, userInfo: nil)
}
override func contents(forType typeName: String) throws -> Any {
if let data = try? PropertyListEncoder().encode(self.notes) {
return data
}
//if we get here, there was some kind of problem
throw NSError(domain: "NoDataDomain", code: -2, userInfo: nil)
}
}
Model
class Model: ObservableObject {
var document: NoteDocument?
var documentURL: URL?
init() {
let fm = FileManager.default
let driveURL = fm.url(forUbiquityContainerIdentifier: nil)?.appendingPathComponent("Documents")
documentURL = driveURL?.appendingPathComponent("savefile.txt")
document = NoteDocument(fileURL: documentURL!)
}
func loadData(viewModel: ViewModel) {
let fm = FileManager.default
if fm.fileExists(atPath: (documentURL?.path)!) {
document?.open(completionHandler: { (success: Bool) -> Void in
if success {
viewModel.notes = self.document?.notes ?? [Note]()
print("File load successfull")
} else {
print("File load failed")
}
})
} else {
document?.save(to: documentURL!, for: .forCreating, completionHandler: { (success: Bool) -> Void in
if success {
print("File create successfull")
} else {
print("File create failed")
}
})
}
}
func saveData(_ notes: [Note]) {
document!.notes = notes
document?.save(to: documentURL!, for: .forOverwriting, completionHandler: { (success: Bool) -> Void in
if success {
print("File save successfull")
} else {
print("File save failed")
}
})
}
func autoSave(_ notes: [Note]) {
document!.notes = notes
document?.updateChangeCount(.done)
}
}
Note
class Note: Identifiable, Codable {
var id = UUID()
var title = ""
var text = ""
}
This is a complex topic. Apple do provide some sample swift code, the Document-Based App Programming Guide for iOS and iCloud Design Guide.
There is also some good third party guidance: Mastering the iCloud Document Store.
I would recommend reading the above, and then return to the NSMetaDataQuery API. NSMetaDataQuery has an initial gathering phase and a live-update phase. The later phase can remain in operation for the lifetime of your app, allowing you to be notified of new documents in your app's iCloud container.
There are several (old) questions on this subject, but none of the solutions worked for me, so here's the question:
How to add a URL scheme, so it will be possible to open my app via the browser?
I did the following:
Added the required info to the info.plist:
I Added those functions:
func applicationWillFinishLaunching(_ notification: Notification) {
NSAppleEventManager.shared().setEventHandler(self, andSelector: #selector(handleEvent(_:with:)), forEventClass: AEEventClass(kInternetEventClass), andEventID: AEEventID(kAEGetURL))
}
#objc func handleEvent(_ event: NSAppleEventDescriptor, with replyEvent: NSAppleEventDescriptor) {
NSLog("at handleEvent")
}
I also tried to add this function:
func application(_ application: NSApplication, open urls: [URL]) {
for url in urls {
NSLog("url:\(url)")
}
}
None of the above worked. I have a webpage that redirect with MyAppLogin://test but nothing happens. It doesn't matter if the app is open or closed (I want it to work in both cases)
Any idea what's the problem here?
Edit: Two more details:
The app is sandboxed
I'm running it via Xcode (so the installation is not at the 'Applications' folder)
One year later, this is how I made it work:
Add this to your AppDelegate:
func applicationWillFinishLaunching(_ notification: Notification) {
let appleEventManager: NSAppleEventManager = NSAppleEventManager.shared()
appleEventManager.setEventHandler(self, andSelector: #selector(handleGetURLEvent(_:withReplyEvent:)), forEventClass: AEEventClass(kInternetEventClass), andEventID: AEEventID(kAEGetURL))
}
Add this, to parse the URL and do whatever you want:
#objc func handleGetURLEvent(_ event: NSAppleEventDescriptor, withReplyEvent: NSAppleEventDescriptor) {
if let urlString = event.forKeyword(AEKeyword(keyDirectObject))?.stringValue {
let url = URL(string: urlString)
guard url != nil, let scheme = url!.scheme else {
//some error
return
}
if scheme.caseInsensitiveCompare("yourSchemeUrl") == .orderedSame {
//your code
}
}
}
I got an error when I drag files to my macOS app,
[sandbox] Failed to get a sandbox extension，when i set App Sandboxvalue boolean no,it is ok,but i want put my app to appstore,I must set App Sandbox YES, how can I do?
class FYOpenDragFileView: NSView{
override func draggingEnded(_ sender: NSDraggingInfo) {
print("松手了")
setupWithActive(active: false)
}
override func draggingExited(_ sender: NSDraggingInfo?) {
isDraging = false
setupWithActive(active: false)
print("draggingExited 进去又出来")
}
override func updateDraggingItemsForDrag(_ sender: NSDraggingInfo?) {
guard let next = delegate else {
return;
}
next.fileDraging()
print("更新拖动文件")
}
override func performDragOperation(_ sender: NSDraggingInfo) -> Bool {
guard let items = sender.draggingPasteboard.pasteboardItems else{
return false
}
var datas = [Data]()
for i in 0..<items.count{
let item = items[i] .string(forType: .fileURL)
if item != nil {
// this have an error
//[sandbox] Failed to get a sandbox extension
let da = try? Data(contentsOf: URL(string: item!)!)
guard let next = da else {
continue
}
datas.append(next)
}
}
QiniuUploadManger.uploadImage(nil, data: datas)
return true
}
}
With sandboxing, you'll have to set the appropriate "entitlements" for your app to receive drag-&-dropped files, which is probably why you're getting this error.
The entitlements file should already have been generated for you when you enabled Sandboxing. See this Apple documentation for details.
I'm working with an MacOS app which needs to use the WKUserScript capability to send a message from the webpage back to the MacOS app. I'm working with the article https://medium.com/capital-one-tech/javascript-manipulation-on-ios-using-webkit-2b1115e7e405 which shows this working in iOS and works just fine.
However I've been struggling for several weeks to try to get it to work in my MacOS. Here is my example of his code which complies fine and runs but does not successfully print the message found in the handler userContentController()
import Cocoa
import WebKit
class ViewController: NSViewController, WKNavigationDelegate {
#IBOutlet weak var webView: WKWebView!
override func viewDidLoad() {
super.viewDidLoad()
let userContentController = WKUserContentController()
// Add script message handlers that, when run, will make the function
// window.webkit.messageHandlers.test.postMessage() available in all frames.
userContentController.add(self, name: "test")
// Inject JavaScript into the webpage. You can specify when your script will be injected and for
// which frames–all frames or the main frame only.
let scriptSource = "window.webkit.messageHandlers.test.postMessage(`Hello, world!`);"
let userScript = WKUserScript(source: scriptSource, injectionTime: .atDocumentEnd, forMainFrameOnly: true)
userContentController.addUserScript(userScript)
// let config = WKWebViewConfiguration()
// config.userContentController = userContentController
// let webView = WKWebView(frame: .zero, configuration: config)
webView.navigationDelegate = self
webView.configuration.userContentController = userContentController
// Make sure in Info.plist you set `NSAllowsArbitraryLoads` to `YES` to load
// URLs with an HTTP connection. You can run a local server easily with services
// such as MAMP.
let htmlStr = "<html><body>Hello world - nojs</body></html>"
webView.loadHTMLString(htmlStr, baseURL: nil)
}
}
extension ViewController: WKScriptMessageHandler {
// Capture postMessage() calls inside loaded JavaScript from the webpage. Note that a Boolean
// will be parsed as a 0 for false and 1 for true in the message's body. See WebKit documentation:
// https://developer.apple.com/documentation/webkit/wkscriptmessage/1417901-body.
func userContentController(_ userContentController: WKUserContentController, didReceive message: WKScriptMessage) {
if let messageBody = message.body as? String {
print(messageBody)
}
}
}
Another odd thing is that I do not seem to be able to create a simple WKWebView app that loads a page and displays it. These are all just simple tests and my main application is able to load/display webpages just fine using AlamoFire/loadHTMLString() to display pages, I just have not been able to inject the JS required.
Everything I've done in the conversion is quite straight forward and required little or no change with the exception of the assignment of the userContentController - so perhaps that's the problem? This example works just fine in iOS with his original sample as a prototype. https://github.com/rckim77/WKWebViewDemoApp/blob/master/WKWebViewDemoApp/ViewController.swift
I'm guessing there must be something very simple I'm missing here. Any help would be greatly appreciated!
Heres how I have set my WebView on Mac try something like this
import Cocoa
import WebKit
class ViewController: NSViewController {
#IBOutlet weak var webView: WKWebView!
override func viewDidLoad() {
super.viewDidLoad()
let javascript = """
function printStatement() {
try {
window.webkit.messageHandlers
.callbackHandler.postMessage({'payload': 'Hello World!'})
} catch(err) {
console.log('The native context does yet exist')
}
}
"""
let script = WKUserScript(
source: javascript,
injectionTime: WKUserScriptInjectionTime.atDocumentEnd,
forMainFrameOnly: true
)
webView.configuration.userContentController.add(
name: "callbackHandler"
)
webView.configuration.userContentController
.addUserScript(script)
webView.navigationDelegate = self
let html = """
<div onClick='javascript:printStatement()'>Print Statement</div>
"""
webView.loadHTMLString(html, nil)
}
}
extension ViewController: WKScriptMessageHandler {
func userContentController(_ userContentController: WKUserContentController, didReceive message: WKScriptMessage) {
if(message.name == "callbackHandler") {
guard let body = message.body as? [String: Any] else {
print("could not convert message body to dictionary: \(message.body)")
return
}
guard let payload = body["payload"] as? String else {
print("Could not locate payload param in callback request")
return
}
print(payload)
}
}
}
Hopefully this answered your question and works if not let me know and i'll try figure it out!
Well, as it turns out a major part of the issue was that I needed to set the entitlements for both "App Sandbox" and "com.apple.security.files.user-selected.read-only" both to "no" in the WebTest.entitlements file.
This was not the case in previous versions of XCode (I'm on V10.1) and the default values basically disabled the WKWebView for what I was trying to do with it (ie, load a simple page either via URL or String)
However, Alex's fix did help once I got that solved... with a couple small tweaks (had to add 'self' to the userContentController.add() function. Also, I added my JS for it's original purpose which was to "push" to Swift every time the user changed the selection on the page.
Here's my final code:
import Cocoa
import WebKit
class ViewController: NSViewController, WKNavigationDelegate {
#IBOutlet var webView: WKWebView!
override func viewDidLoad() {
super.viewDidLoad()
let javascript = """
function printStatement() {
try {
var foo = window.getSelection().toString()
window.webkit.messageHandlers.callbackHandler.postMessage({'payload': foo})
} catch(err) {
console.log('The native context does yet exist')
}
}
function getSelectionAndSendMessage() {
try {
var currSelection = window.getSelection().toString()
window.webkit.messageHandlers.callbackHandler.postMessage({'payload': currSelection})
} catch(err) {
console.log('The native context does yet exist')
}
}
document.onmouseup = getSelectionAndSendMessage;
document.onkeyup = getSelectionAndSendMessage;
document.oncontextmenu = getSelectionAndSendMessage;
"""
let script = WKUserScript(
source: javascript,
injectionTime: WKUserScriptInjectionTime.atDocumentEnd,
forMainFrameOnly: true
)
webView.configuration.userContentController.add(self, name: "callbackHandler")
webView.configuration.userContentController.addUserScript(script)
webView.navigationDelegate = self
let html = """
<div onClick='javascript:printStatement()'>Print Statement</div>
This is some sample text to test select with
"""
webView.loadHTMLString(html, baseURL: nil)
}
}
extension ViewController: WKScriptMessageHandler {
func userContentController(_ userContentController: WKUserContentController, didReceive message: WKScriptMessage) {
if(message.name == "callbackHandler") {
guard let body = message.body as? [String: Any] else {
print("could not convert message body to dictionary: \(message.body)")
return
}
guard let payload = body["payload"] as? String else {
print("Could not locate payload param in callback request")
return
}
print(payload)
}
}
}
Thanks Alex for all your fantastic support!