[ADD] Hint for new users who don't have any sources

AltStore/View Components/HintView.swift

@@ -0,0 +1,42 @@
+//
+//  HintView.swift
+//  SideStore
+//
+//  Created by Fabian Thies on 15.01.23.
+//  Copyright © 2023 SideStore. All rights reserved.
+//
+
+import SwiftUI
+
+struct HintView<Content: View>: View {
+
+    var backgroundColor: Color = Color(.tertiarySystemBackground)
+
+    @ViewBuilder
+    let content: () -> Content
+    
+    var body: some View {
+        VStack(alignment: .leading, spacing: 8) {
+            self.content()
+        }
+        .padding()
+        .background(self.backgroundColor)
+        .clipShape(RoundedRectangle(cornerRadius: 8))
+    }
+}
+
+struct HintView_Previews: PreviewProvider {
+    static var previews: some View {
+        ZStack {
+            Color(.secondarySystemBackground).edgesIgnoringSafeArea(.all)
+
+            HintView {
+                Text("Hint Title")
+                    .bold()
+
+                Text("This hint view can be used to tell the user something about how SideStore works.")
+                    .foregroundColor(.secondary)
+            }
+        }
+    }
+}

AltStore/Views/Browse/BrowseView.swift

@@ -42,15 +42,34 @@ struct BrowseView: View {
                             .bold()
                     }
                 }
-                
-                LazyVStack(spacing: 32) {
-                    ForEach(filteredApps, id: \.bundleIdentifier) { app in
-                        NavigationLink {
-                            AppDetailView(storeApp: app)
+
+                if searchText.isEmpty, filteredApps.count == 0 {
+                    HintView {
+                        Text("You don't have any apps yet.")
+                            .bold()
+
+                        Text("Apps are provided by \"sources\". The specification for them is an open standard, so everyone can create their own source. To get you started, we have compiled a list of \"Trusted Sources\" which you can check out by tapping the button below.")
+                            .font(.callout)
+                            .foregroundColor(.secondary)
+
+                        SwiftUI.Button {
+                            self.isShowingSourcesView = true
                         } label: {
-                            BrowseAppPreviewView(storeApp: app)
+                            Label("Add Source", systemSymbol: .plus)
+                        }
+                        .buttonStyle(FilledButtonStyle())
+                        .padding(.top, 8)
+                    }
+                } else {
+                    LazyVStack(spacing: 32) {
+                        ForEach(filteredApps, id: \.bundleIdentifier) { app in
+                            NavigationLink {
+                                AppDetailView(storeApp: app)
+                            } label: {
+                                BrowseAppPreviewView(storeApp: app)
+                            }
+                            .buttonStyle(PlainButtonStyle())
                         }
-                        .buttonStyle(PlainButtonStyle())
                     }
                 }
             }
@@ -111,7 +130,9 @@ struct BrowseView: View {
 
 struct BrowseView_Previews: PreviewProvider {
     static var previews: some View {
-        BrowseView()
+        NavigationView {
+            BrowseView()
+        }
     }
 }
 

AltStore/Views/My Apps/MyAppsView.swift

@@ -155,19 +155,19 @@ struct MyAppsView: View {
     }
     
     var updatesSection: some View {
-        VStack(alignment: .leading, spacing: 8) {
+        HintView {
             HStack(alignment: .center) {
                 Text("All Apps are Up To Date")
                     .bold()
                 Spacer()
-                
+
                 Menu {
                     SwiftUI.Button {
                         self.dismissUpdatesHint(forever: false)
                     } label: {
                         Label("Dismiss for now", systemSymbol: .zzz)
                     }
-                    
+
                     SwiftUI.Button {
                         self.dismissUpdatesHint(forever: true)
                     } label: {
@@ -176,15 +176,13 @@ struct MyAppsView: View {
                 } label: {
                     Image(systemSymbol: .xmark)
                 }
+                .foregroundColor(.secondary)
             }
-            
+
             Text("You will be notified once updates for your apps are available. The updates will then be shown here.")
                 .font(.callout)
+                .foregroundColor(.secondary)
         }
-        .foregroundColor(.secondary)
-        .padding()
-        .background(Color(.tertiarySystemBackground))
-        .clipShape(RoundedRectangle(cornerRadius: 8))
     }
     
     @ViewBuilder
@@ -428,6 +426,8 @@ extension MyAppsView {
 
 struct MyAppsView_Previews: PreviewProvider {
     static var previews: some View {
-        MyAppsView()
+        NavigationView {
+            MyAppsView()
+        }
     }
 }