Add support for dropping items into the Myke Mode list

Elsewhen.xcodeproj/project.pbxproj

@@ -13,6 +13,9 @@
 		5EB23BA126E406B900203153 /* Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 5EB23BA026E406B900203153 /* Assets.xcassets */; };
 		5EB23BA426E406B900203153 /* Preview Assets.xcassets in Resources */ = {isa = PBXBuildFile; fileRef = 5EB23BA326E406B900203153 /* Preview Assets.xcassets */; };
 		5EB31FB726E6390D00826907 /* SearchBar.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5EB31FB626E6390D00826907 /* SearchBar.swift */; };
+		5EE70E2226EC9AA600F3F164 /* TimeZoneFlags.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5EE70E2126EC9AA500F3F164 /* TimeZoneFlags.swift */; };
+		5EE70E2426ECBEED00F3F164 /* MykeMode.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5EE70E2326ECBEED00F3F164 /* MykeMode.swift */; };
+		5EE70E2726ECCC0700F3F164 /* TimeCodeGeneratorView.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5EE70E2626ECCC0700F3F164 /* TimeCodeGeneratorView.swift */; };
 		635C8FA726E66E8300361B08 /* DiscordFormattedDate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 635C8FA626E66E8300361B08 /* DiscordFormattedDate.swift */; };
 		6378397E26EA5FD60055A10D /* UIApplication+clearLaunchScreenCache.swift in Sources */ = {isa = PBXBuildFile; fileRef = 6378397D26EA5FD60055A10D /* UIApplication+clearLaunchScreenCache.swift */; };
 		6378398026EA61AB0055A10D /* Launch Screen.storyboard in Resources */ = {isa = PBXBuildFile; fileRef = 6378397F26EA61AB0055A10D /* Launch Screen.storyboard */; };
@@ -30,6 +33,8 @@
 		637839B226EBF5FD0055A10D /* ConvertTimeIntentHandling.swift in Sources */ = {isa = PBXBuildFile; fileRef = 637839B126EBF5FD0055A10D /* ConvertTimeIntentHandling.swift */; };
 		637839B526EBF8130055A10D /* FormatCodeExtension.swift in Sources */ = {isa = PBXBuildFile; fileRef = 637839B426EBF8130055A10D /* FormatCodeExtension.swift */; };
 		637839B626EBF9690055A10D /* DateHelpers.swift in Sources */ = {isa = PBXBuildFile; fileRef = 6378398426EB80F50055A10D /* DateHelpers.swift */; };
+		637839CB26ED11360055A10D /* TimeZone+ItemProvider.swift in Sources */ = {isa = PBXBuildFile; fileRef = 637839CA26ED11360055A10D /* TimeZone+ItemProvider.swift */; };
+		63DDFB9A26ED178E0021ACFD /* TimeZone+DropDelegate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 63DDFB9926ED178E0021ACFD /* TimeZone+DropDelegate.swift */; };
 /* End PBXBuildFile section */
 
 /* Begin PBXContainerItemProxy section */
@@ -72,6 +77,9 @@
 		5EB23BA026E406B900203153 /* Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = Assets.xcassets; sourceTree = "<group>"; };
 		5EB23BA326E406B900203153 /* Preview Assets.xcassets */ = {isa = PBXFileReference; lastKnownFileType = folder.assetcatalog; path = "Preview Assets.xcassets"; sourceTree = "<group>"; };
 		5EB31FB626E6390D00826907 /* SearchBar.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = SearchBar.swift; sourceTree = "<group>"; };
+		5EE70E2126EC9AA500F3F164 /* TimeZoneFlags.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = TimeZoneFlags.swift; sourceTree = "<group>"; };
+		5EE70E2326ECBEED00F3F164 /* MykeMode.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = MykeMode.swift; sourceTree = "<group>"; };
+		5EE70E2626ECCC0700F3F164 /* TimeCodeGeneratorView.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = TimeCodeGeneratorView.swift; sourceTree = "<group>"; };
 		635C8FA626E66E8300361B08 /* DiscordFormattedDate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = DiscordFormattedDate.swift; sourceTree = "<group>"; };
 		6378397D26EA5FD60055A10D /* UIApplication+clearLaunchScreenCache.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "UIApplication+clearLaunchScreenCache.swift"; sourceTree = "<group>"; };
 		6378397F26EA61AB0055A10D /* Launch Screen.storyboard */ = {isa = PBXFileReference; lastKnownFileType = file.storyboard; path = "Launch Screen.storyboard"; sourceTree = "<group>"; };
@@ -90,6 +98,8 @@
 		637839AF26EBF4910055A10D /* Intents.intentdefinition */ = {isa = PBXFileReference; lastKnownFileType = file.intentdefinition; path = Intents.intentdefinition; sourceTree = "<group>"; };
 		637839B126EBF5FD0055A10D /* ConvertTimeIntentHandling.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ConvertTimeIntentHandling.swift; sourceTree = "<group>"; };
 		637839B426EBF8130055A10D /* FormatCodeExtension.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = FormatCodeExtension.swift; sourceTree = "<group>"; };
+		637839CA26ED11360055A10D /* TimeZone+ItemProvider.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "TimeZone+ItemProvider.swift"; sourceTree = "<group>"; };
+		63DDFB9926ED178E0021ACFD /* TimeZone+DropDelegate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "TimeZone+DropDelegate.swift"; sourceTree = "<group>"; };
 /* End PBXFileReference section */
 
 /* Begin PBXFrameworksBuildPhase section */
@@ -143,12 +153,12 @@
 		5EB23B9B26E406B600203153 /* Elsewhen */ = {
 			isa = PBXGroup;
 			children = (
+				5EE70E2526ECCBF400F3F164 /* Views */,
 				6378398126EB7F510055A10D /* Elements */,
 				6378397C26EA5FA50055A10D /* Extensions */,
+				5EE70E2826ED0EE700F3F164 /* Helpers */,
 				5EB23B9C26E406B600203153 /* ElsewhenApp.swift */,
 				5EB23B9E26E406B600203153 /* ContentView.swift */,
-				6378398426EB80F50055A10D /* DateHelpers.swift */,
-				5EB31FB626E6390D00826907 /* SearchBar.swift */,
 				5EB23BA026E406B900203153 /* Assets.xcassets */,
 				5EB23BA226E406B900203153 /* Preview Content */,
 				6378397F26EA61AB0055A10D /* Launch Screen.storyboard */,
@@ -164,10 +174,31 @@
 			path = "Preview Content";
 			sourceTree = "<group>";
 		};
+		5EE70E2526ECCBF400F3F164 /* Views */ = {
+			isa = PBXGroup;
+			children = (
+				5EE70E2626ECCC0700F3F164 /* TimeCodeGeneratorView.swift */,
+				5EE70E2326ECBEED00F3F164 /* MykeMode.swift */,
+			);
+			path = Views;
+			sourceTree = "<group>";
+		};
+		5EE70E2826ED0EE700F3F164 /* Helpers */ = {
+			isa = PBXGroup;
+			children = (
+				6378398426EB80F50055A10D /* DateHelpers.swift */,
+				5EB31FB626E6390D00826907 /* SearchBar.swift */,
+				5EE70E2126EC9AA500F3F164 /* TimeZoneFlags.swift */,
+			);
+			path = Helpers;
+			sourceTree = "<group>";
+		};
 		6378397C26EA5FA50055A10D /* Extensions */ = {
 			isa = PBXGroup;
 			children = (
 				6378397D26EA5FD60055A10D /* UIApplication+clearLaunchScreenCache.swift */,
+				637839CA26ED11360055A10D /* TimeZone+ItemProvider.swift */,
+				63DDFB9926ED178E0021ACFD /* TimeZone+DropDelegate.swift */,
 			);
 			path = Extensions;
 			sourceTree = "<group>";
@@ -353,11 +384,16 @@
 			isa = PBXSourcesBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
+				5EE70E2226EC9AA600F3F164 /* TimeZoneFlags.swift in Sources */,
 				5EB23B9F26E406B600203153 /* ContentView.swift in Sources */,
+				5EE70E2426ECBEED00F3F164 /* MykeMode.swift in Sources */,
 				5EB31FB726E6390D00826907 /* SearchBar.swift in Sources */,
 				6378397E26EA5FD60055A10D /* UIApplication+clearLaunchScreenCache.swift in Sources */,
 				5EAB48DD26E624CD00B04A60 /* TimezoneChoiceView.swift in Sources */,
+				5EE70E2726ECCC0700F3F164 /* TimeCodeGeneratorView.swift in Sources */,
 				6378398726EBA7C60055A10D /* DateTimeSelection.swift in Sources */,
+				63DDFB9A26ED178E0021ACFD /* TimeZone+DropDelegate.swift in Sources */,
+				637839CB26ED11360055A10D /* TimeZone+ItemProvider.swift in Sources */,
 				6378398326EB80C30055A10D /* ResultSheet.swift in Sources */,
 				6378398526EB80F50055A10D /* DateHelpers.swift in Sources */,
 				635C8FA726E66E8300361B08 /* DiscordFormattedDate.swift in Sources */,

Elsewhen/ContentView.swift

@@ -14,47 +14,19 @@ let logger = Logger(subsystem: Bundle.main.bundleIdentifier!, category: "times")
 
 struct ContentView: View {
 
-    @State private var selectedDate = Date()
-    @State private var selectedFormatStyle: DateFormat = dateFormats[0]
-    @State private var selectedTimeZone: String = TimeZone.current.identifier
-    @State private var showLocalTimeInstead: Bool = false
-
-    private var discordFormat: String {
-        var timeIntervalSince1970 = Int(selectedDate.timeIntervalSince1970)
-
-        if let tz = TimeZone(identifier: selectedTimeZone) {
-            timeIntervalSince1970 = Int(convertSelectedDate(from: tz, to: TimeZone.current).timeIntervalSince1970)
-        } else {
-            logger.warning("\(selectedTimeZone, privacy: .public) is not a valid timezone identifier!")
-        }
-
-        return "<t:\(timeIntervalSince1970):\(selectedFormatStyle.code.rawValue)>"
-    }
+    @State private var selectedTab: Int = 1
 
     var body: some View {
-        NavigationView {
-            VStack(spacing: 0) {
-
-                ScrollView(showsIndicators: true) {
-                    DateTimeSelection(selectedFormatStyle: $selectedFormatStyle, selectedDate: $selectedDate, selectedTimeZone: $selectedTimeZone)
-                }
-
-                ResultSheet(selectedDate: selectedDate, selectedTimeZone: selectedTimeZone, discordFormat: discordFormat, showLocalTimeInstead: $showLocalTimeInstead, selectedFormatStyle: $selectedFormatStyle)
-
-            }
-            .edgesIgnoringSafeArea([.bottom, .horizontal])
-            .navigationTitle("Discord Time Code Generator")
-            .navigationBarTitleDisplayMode(.inline)
-        }
-        .navigationViewStyle(StackNavigationViewStyle())
-        .onChange(of: selectedTimeZone) { _ in
-            showLocalTimeInstead = false
+        TabView(selection: $selectedTab) {
+            TimeCodeGeneratorView()
+                .tabItem { Label("Time Codes", systemImage: "clock") }
+                .tag(0)
+            MykeMode()
+                .tabItem { Label("Myke Mode", systemImage: "keyboard") }
+                .tag(1)
         }
     }
 
-    func convertSelectedDate(from initialTimezone: TimeZone, to targetTimezone: TimeZone) -> Date {
-        return convert(date: selectedDate, from: initialTimezone, to: targetTimezone)
-    }
 }
 
 struct ContentView_Previews: PreviewProvider {

Elsewhen/Elements/ResultSheet.swift

@@ -133,7 +133,7 @@ struct ResultSheet: View {
         .frame(minWidth: 0, maxWidth: .infinity)
         .background(
             Color(UIColor.secondarySystemBackground)
-                .shadow(radius: 10)
+                .shadow(radius: 5, x: 0, y: -5)
         )
     }
 

Elsewhen/Extensions/TimeZone+DropDelegate.swift

@@ -0,0 +1,39 @@
+//
+//  TimeZone+DropDelegate.swift
+//  TimeZone+DropDelegate
+//
+//  Created by David on 11/09/2021.
+//
+
+import Foundation
+import SwiftUI
+import UniformTypeIdentifiers
+
+extension TimeZone {
+    struct TZDropDelegate: DropDelegate {
+        let onDrop: ((TimeZone?) -> ())
+        func performDrop(info: DropInfo) -> Bool {
+            let itemProviders = info.itemProviders(for: [UTType.json, UTType.text])
+            guard !itemProviders.isEmpty else {
+                return false
+            }
+            for itemProvider in itemProviders {
+                if itemProvider.canLoadObject(ofClass: TimeZone.ItemProvider.self) {
+                    itemProvider.loadObject(ofClass: TimeZone.ItemProvider.self) { tzItemProvider, error in
+                        guard let tzItemProvider = tzItemProvider as? TimeZone.ItemProvider,
+                              error == nil else {
+                                  if let error = error {
+                                      logger.error("Unabled to load dropped item: \(error.localizedDescription)")
+                                  }
+                                  onDrop(nil)
+                                  return
+                              }
+                        onDrop(TimeZone(identifier: tzItemProvider.identifier))
+                    }
+                    return true
+                }
+            }
+            return false
+        }
+    }
+}

Elsewhen/Extensions/TimeZone+ItemProvider.swift

@@ -0,0 +1,131 @@
+//
+//  TimeZone+ItemProvider.swift
+//  TimeZone+ItemProvider
+//
+//  Created by David on 11/09/2021.
+//
+
+import Foundation
+import UniformTypeIdentifiers
+
+let jsonEncoder = JSONEncoder()
+let jsonDecoder = JSONDecoder()
+
+let typeIdentifiers = [
+    UTType.json.identifier,
+    UTType.text.identifier, UTType.utf8PlainText.identifier, UTType.plainText.identifier
+]
+
+extension TimeZone {
+    class ItemProvider: NSObject, NSItemProviderWriting, Codable, NSItemProviderReading {
+
+        let identifier: String
+        let name: String?
+        let abbreviation: String?
+        let flag: String
+
+        var resolvedName: String {
+            "\(self.flag) \(self.name ?? self.identifier)"
+        }
+
+        required init(from timezone: TimeZone) {
+            self.identifier = timezone.identifier
+            self.name = timezone.localizedName(for: .standard, locale: .current)
+            self.abbreviation = timezone.abbreviation()
+            self.flag = flagForTimeZone(timezone)
+        }
+
+        static var writableTypeIdentifiersForItemProvider: [String] = typeIdentifiers
+
+        func loadData(withTypeIdentifier typeIdentifier: String, forItemProviderCompletionHandler completionHandler: @escaping (Data?, Error?) -> Void) -> Progress? {
+            switch typeIdentifier {
+            case UTType.json.identifier:
+                return self.loadJson(forItemProviderCompletionHandler: completionHandler)
+            case UTType.text.identifier,
+                UTType.utf8PlainText.identifier,
+                UTType.plainText.identifier:
+                return self.loadUtf8String(forItemProviderCompletionHandler: completionHandler)
+            default:
+                completionHandler(nil, ItemProviderError.unrecognisedType(identifier: typeIdentifier))
+                return nil
+            }
+        }
+
+        func loadJson(forItemProviderCompletionHandler completionHandler: @escaping (Data?, Error?) -> Void) -> Progress? {
+            do {
+                completionHandler(try jsonEncoder.encode(self), nil)
+            } catch {
+                completionHandler(nil, error)
+            }
+            return nil
+        }
+
+        func loadUtf8String(forItemProviderCompletionHandler completionHandler: @escaping (Data?, Error?) -> Void) -> Progress? {
+            completionHandler(Data(self.resolvedName.utf8), nil)
+            return nil
+        }
+
+        static var readableTypeIdentifiersForItemProvider: [String] = typeIdentifiers
+
+        static func object(withItemProviderData data: Data, typeIdentifier: String) throws -> Self {
+            switch typeIdentifier {
+            case UTType.json.identifier:
+                return try jsonDecoder.decode(Self.self, from: data)
+            case UTType.text.identifier,
+                UTType.utf8PlainText.identifier,
+                UTType.plainText.identifier:
+                guard let string = String(data: data, encoding: .utf8) else {
+                    throw ItemProviderError.invalidData(representing: "TimeZone")
+                }
+                if let provider = Self.from(string: string) {
+                    return provider
+                }
+                if let provider = Self.from(string: string.replacingOccurrences(of: "\\", with: "").trimmingCharacters(in: .punctuationCharacters)) {
+                    return provider
+                }
+                if let provider = Self.from(string: string.dropFirst(1).trimmingCharacters(in: .whitespaces).trimmingCharacters(in: .punctuationCharacters)) {
+                    return provider
+                }
+                throw ItemProviderError.invalidData(representing: "TimeZone")
+            default:
+                throw ItemProviderError.unrecognisedType(identifier: typeIdentifier)
+            }
+        }
+
+        static func from(string: String) -> Self? {
+            if let tz = TimeZone(identifier: string) {
+                return Self.init(from: tz)
+            }
+            if let tz = TimeZone(abbreviation: string) {
+                return Self.init(from: tz)
+            }
+            return nil
+        }
+    }
+
+    var itemProvider: ItemProvider {
+        TimeZone.ItemProvider(from: self)
+    }
+}
+
+enum ItemProviderError: LocalizedError {
+    case unrecognisedType(identifier: String)
+    case invalidData(representing: String)
+
+    var errorDescription: String? {
+        return String.localizedStringWithFormat(NSLocalizedString("ItemProvidingFailed: %@", tableName: "Errors", comment: ""), failureReason!)
+    }
+
+    var failureReason: String? {
+        switch self {
+        case .unrecognisedType(let identifier):
+            return String.localizedStringWithFormat(NSLocalizedString("UnrecognisedUTI: %@", tableName: "Errors", comment: ""), identifier)
+        case .invalidData(let representing):
+            return "Data did not represent a \(representing)"
+        }
+    }
+
+    var recoverySuggestion: String? {
+        "Please contact support"
+    }
+}