WIP: Add SwiftUI browse view

QuickDropiOS/Model.swift

@@ -0,0 +1,75 @@
+//
+//  Model.swift
+//  QuickDrop
+//
+//  Created by Leon Böttger on 28.07.25.
+//
+
+import SwiftUI
+
+class ShareViewModel: ObservableObject, ShareExtensionDelegate {
+    
+    @Published var foundDevices: [RemoteDeviceInfo] = []
+    @Published var selectedDevice: RemoteDeviceInfo?
+    @Published var lastError: Error?
+    
+    @Published var progressState: String? = nil
+    @Published var progressValue: Double? = nil
+    
+    private var urls: [URL] = []
+    private var textToSend: String? = nil
+    //private var errorAlertHandler = ErrorAlertHandler.shared
+    
+    private var connectionEstablished = false
+    private var timeoutDispatchWorkItem: DispatchWorkItem? = nil
+    
+    init() {
+        NearbyConnectionManager.shared.startDeviceDiscovery()
+    }
+    
+    func addDevice(device: RemoteDeviceInfo) {
+        withAnimation {
+            foundDevices.append(device)
+        }
+    }
+    
+    func removeDevice(id: String) {
+        withAnimation {
+            foundDevices.removeAll { $0.id == id }
+        }
+    }
+    
+    func connectionWasEstablished(pinCode: String) {
+        connectionEstablished = true
+        progressState = String(format: "PinCode".localized(), arguments: [pinCode])
+        progressValue = 0
+    }
+    
+    func connectionFailed(with error: any Error) {
+        progressValue = nil
+        lastError = error
+        
+        //ErrorAlertHandler.shared.showErrorAlert(for: chosenDevice?.name ?? "", error: error)
+    }
+    
+    func transferAccepted() {
+        progressState = "Sending".localized()
+    }
+    
+    func transferProgress(progress: Double) {
+        progressValue = progress
+    }
+    
+    func transferFinished() {
+        progressState = "TransferFinished".localized()
+    }
+    
+    func selectDevice(device: RemoteDeviceInfo) {
+        NearbyConnectionManager.shared.stopDeviceDiscovery()
+        
+        progressValue = 0
+        progressState = "Connecting".localized()
+        selectedDevice = device
+        NearbyConnectionManager.shared.startOutgoingTransfer(deviceID: device.id!, delegate: self, urls: urls, textToSend: textToSend)
+    }
+}