[ADD] Search bar for BrowseView on iOS 15

AltStore/Extensions/StoreApp+Filterable.swift

@@ -0,0 +1,17 @@
+//
+//  StoreApp+Searchable.swift
+//  SideStore
+//
+//  Created by Fabian Thies on 01.12.22.
+//  Copyright © 2022 SideStore. All rights reserved.
+//
+
+import AltStoreCore
+
+extension StoreApp: Filterable {
+    func matches(_ searchText: String) -> Bool {
+        searchText.isEmpty ||
+        self.name.lowercased().contains(searchText.lowercased()) ||
+        self.developerName.lowercased().contains(searchText.lowercased())
+    }
+}

AltStore/Protocols/Filterable.swift

@@ -0,0 +1,23 @@
+//
+//  Filterable.swift
+//  SideStore
+//
+//  Created by Fabian Thies on 01.12.22.
+//  Copyright © 2022 SideStore. All rights reserved.
+//
+
+import Foundation
+
+protocol Filterable {
+    func matches(_ searchText: String) -> Bool
+}
+
+extension Collection where Element: Filterable {
+    func matches(_ searchText: String) -> Bool {
+        self.contains(where: { $0.matches(searchText) })
+    }
+    
+    func items(matching searchText: String) -> [Element] {
+        self.filter { $0.matches(searchText) }
+    }
+}

AltStore/View Extensions/Modifiers.swift

@@ -0,0 +1,29 @@
+//
+//  Modifiers.swift
+//  SideStore
+//
+//  Created by Fabian Thies on 01.12.22.
+//  Copyright © 2022 SideStore. All rights reserved.
+//
+
+import SwiftUI
+
+extension View {
+    
+    @ViewBuilder func `if`<Content: View>(_ condition: Bool, transform: (Self) -> Content) -> some View {
+        if condition {
+            transform(self)
+        } else {
+            self
+        }
+    }
+    
+    
+    @ViewBuilder func searchable(text: Binding<String>, placeholder: String) -> some View {
+        if #available(iOS 15.0, *) {
+            self.searchable(text: text, prompt: Text(placeholder))
+        } else {
+            self
+        }
+    }
+}

AltStore/Views/Browse/BrowseAppPreviewView.swift

@@ -14,7 +14,7 @@ struct BrowseAppPreviewView: View {
     let storeApp: StoreApp
     
     var body: some View {
-        VStack {
+        VStack(spacing: 16) {
             AppRowView(app: storeApp)
             
             if let subtitle = storeApp.subtitle {

AltStore/Views/Browse/BrowseView.swift

@@ -15,11 +15,11 @@ struct BrowseView: View {
         NSSortDescriptor(keyPath: \StoreApp.sortIndex, ascending: true),
         NSSortDescriptor(keyPath: \StoreApp.name, ascending: true),
         NSSortDescriptor(keyPath: \StoreApp.bundleIdentifier, ascending: true)
-    ]/*, predicate: NSPredicate(format: "%K != %@", #keyPath(StoreApp.bundleIdentifier), StoreApp.altstoreAppID)*/)
+    ], predicate: NSPredicate(format: "%K != %@", #keyPath(StoreApp.bundleIdentifier), StoreApp.altstoreAppID))
     var apps: FetchedResults<StoreApp>
     
     var filteredApps: [StoreApp] {
-        apps.filter { $0.matches(self.searchText) }
+        apps.items(matching: self.searchText)
     }
     
     @State
@@ -31,7 +31,7 @@ struct BrowseView: View {
     
     var body: some View {
         ScrollView {
-            LazyVStack(spacing: 24) {
+            LazyVStack(spacing: 32) {
                 ForEach(filteredApps, id: \.bundleIdentifier) { app in
                     NavigationLink {
                         AppDetailView(storeApp: app)
@@ -68,32 +68,3 @@ struct BrowseView_Previews: PreviewProvider {
         BrowseView()
     }
 }
-
-
-extension StoreApp {
-    func matches(_ searchText: String) -> Bool {
-        searchText.isEmpty ||
-        self.name.lowercased().contains(searchText.lowercased()) ||
-        self.developerName.lowercased().contains(searchText.lowercased())
-    }
-}
-
-extension View {
-    
-    @ViewBuilder func `if`<Content: View>(_ condition: Bool, transform: (Self) -> Content) -> some View {
-        if condition {
-            transform(self)
-        } else {
-            self
-        }
-    }
-    
-    
-    @ViewBuilder func searchable(text: Binding<String>, placeholder: String) -> some View {
-        if #available(iOS 15.0, *) {
-            self.searchable(text: text, prompt: Text(placeholder))
-        } else {
-            self
-        }
-    }
-}