Part of speech highlighting when tapped from dictionary list

Toki Trainer/Models/TokiJSONLoader.swift

@@ -8,28 +8,26 @@
 import Foundation
 
 class TokiJSONLoader: ObservableObject {
-    @Published var dictionary: [TokiDictEntry] = []
-    @Published var partsOfSpeech: [TokiPartOfSpeech] = []
     
-    func loadDictionary() {
+    func loadDictionary() -> [TokiDictEntry]? {
         let jsonData = loadJSON("toki-dictionary")
         do {
             let decodedData = try JSONDecoder().decode([TokiDictEntry].self, from: jsonData!)
-            dictionary = decodedData
+            return decodedData
         } catch {
             print("Decode error: \(error)")
-            return
+            return nil
         }
     }
     
-    func loadPOS() {
+    func loadPOS() -> [TokiPartOfSpeech]? {
         let jsonData = loadJSON("toki-partsofspeech")
         do {
             let decodedData = try JSONDecoder().decode([TokiPartOfSpeech].self, from: jsonData!)
-            partsOfSpeech = decodedData
+            return decodedData
         } catch {
             print("Decode error: \(error)")
-            return
+            return nil
         }
     }
     

Toki Trainer/States/TokiPartsOfSpeechProvider.swift

@@ -1,8 +0,0 @@
-//
-//  TokiPartsOfSpeechProvider.swift
-//  Toki Trainer
-//
-//  Created by Avery Ada Pace on 11/3/21.
-//
-
-import Foundation

Toki Trainer/ViewModels/TokiDictionaryViewModel.swift

@@ -0,0 +1,25 @@
+//
+//  TokiDictionaryViewModel.swift
+//  Toki Trainer
+//
+//  Created by Avery Ada Pace on 11/4/21.
+//
+
+import Foundation
+
+class TokiDictionaryViewModel: ObservableObject
+{
+    let jsonLoader: TokiJSONLoader = TokiJSONLoader()
+    
+    @Published var dictionary: [TokiDictEntry] = []
+    @Published var partsOfSpeech: [TokiPartOfSpeech] = []
+    
+    init() {
+        if let safeDictionary = jsonLoader.loadDictionary() {
+            dictionary = safeDictionary
+        }
+        if let safePartsOfSpeech = jsonLoader.loadPOS() {
+            partsOfSpeech = safePartsOfSpeech
+        }
+    }
+}

Toki Trainer/Views/ContentView.swift

@@ -8,22 +8,30 @@
 import SwiftUI
 import CoreData
 
+extension String: Identifiable {
+    public var id: String { self }
+}
+
 struct ContentView: View {
+    @Environment(\.managedObjectContext) private var viewContext
     
-    @ObservedObject var jsonLoader = TokiJSONLoader()
+    @ObservedObject var tokiDictViewModel = TokiDictionaryViewModel()
+    @State private var selectedPartOfSpeech: String? = nil
     
     var body: some View {
         VStack {
             TextField("Enter Toki Pona Word or Phrase", text: /*@START_MENU_TOKEN@*//*@PLACEHOLDER=Value@*/.constant("")/*@END_MENU_TOKEN@*/)
                 .multilineTextAlignment(.center)
                 .padding(8)
-            List(jsonLoader.dictionary, id: \.word) { entry in
+            List(tokiDictViewModel.dictionary, id: \.word) { entry in
                 VStack(alignment: .leading) {
                     Text(entry.word)
                         .font(.title)
                     ForEach(entry.definitions, id: \.pos) { definition in
                         HStack(alignment: .top) {
-                            Button(action: openPartsOfSpeechView) {
+                            Button(action: {
+                                self.selectedPartOfSpeech = String(definition.pos)
+                            }) {
                                 Text(definition.pos)
                                     .frame(width: 45, height: 22, alignment: .center)
                                     .foregroundColor(.black)
@@ -31,6 +39,7 @@ struct ContentView: View {
                                     .cornerRadius(5.0)
                                     .padding(4)
                             }
+                            .buttonStyle(BorderlessButtonStyle())
                             Text(definition.definition)
                                 .fixedSize(horizontal: false, vertical: true)
                                 .padding(4)
@@ -40,19 +49,19 @@ struct ContentView: View {
             }
             .safeAreaInset(edge: .bottom) {
                 HStack() {
-                    Button(action: openPartsOfSpeechView) {
-                        Text("Parts of Speech")
+                    Button("Parts of Speech") {
+                        self.selectedPartOfSpeech = ""
                     }
                     .padding(8)
                 }
                 .frame(maxWidth: .infinity)
                 .background(.thinMaterial)
             }
-            .onAppear {
-                self.jsonLoader.loadDictionary()
+            .sheet(item: $selectedPartOfSpeech) { selectedPOS in
+                PartsOfSpeechView(selectedPartOfSpeech: selectedPOS, tokiDictViewModel: self.tokiDictViewModel)
             }
         }
-}
+    }
     
     func openPartsOfSpeechView() {
         print("Button pressed.")

Toki Trainer/Views/PartsOfSpeechView.swift

@@ -0,0 +1,49 @@
+//
+//  PartsOfSpeechView.swift
+//  Toki Trainer
+//
+//  Created by Avery Ada Pace on 11/4/21.
+//
+
+import SwiftUI
+
+struct PartsOfSpeechView: View {
+    var selectedPartOfSpeech: String? = nil
+    
+    @ObservedObject var tokiDictViewModel: TokiDictionaryViewModel
+    
+//    init(selectedPartOfSpeech: String) {
+//        _selectedPartOfSpeech = State(initialValue: selectedPartOfSpeech)
+//    }
+    
+    var body: some View {
+        VStack {
+            Text("Parts of Speech")
+                .padding()
+            VStack(alignment: .leading) {
+                ForEach(tokiDictViewModel.partsOfSpeech, id: \.pos) { pos in
+                    HStack {
+                        Text(pos.pos)
+                            .frame(width: 45, height: 22, alignment: .center)
+                            .background(Color(K.posColors[pos.pos]!))
+                            .cornerRadius(5.0)
+                            .padding(1)
+                        Text(pos.definition)
+                        Spacer()
+                    }
+                    //.background(.blue)
+                    .background((selectedPartOfSpeech == pos.pos) ? Color(UIColor.systemGray4) : .white)
+                    .cornerRadius(5.0)
+                    .padding(2)
+                }
+            }
+            Spacer()
+        }
+    }
+}
+
+struct PartsOfSpeechView_Previews: PreviewProvider {
+    static var previews: some View {
+        PartsOfSpeechView(selectedPartOfSpeech: "sep", tokiDictViewModel: TokiDictionaryViewModel())
+    }
+}