1.5.0 Milestone 1 // Merge GitHub PR#57 from dev/1.5.x

Installer/AppDelegate.swift

@@ -321,7 +321,7 @@ class AppDelegate: NSWindowController, NSApplicationDelegate {
 				ntfPostInstall.addButton(withTitle: NSLocalizedString("OK", comment: ""))
 			}
 		}
-		ntfPostInstall.beginSheetModal(for: window!) { response in
+		ntfPostInstall.beginSheetModal(for: window!) { _ in
 			self.endAppWithDelay()
 		}
 	}

Makefile

@@ -20,7 +20,9 @@ debug:
 DSTROOT = /Library/Input Methods
 VC_APP_ROOT = $(DSTROOT)/vChewing.app
 
-.PHONY: clang-format lint
+.PHONY: clang-format lint batchfix format
+
+format: batchfix clang-format lint
 
 clang-format:
 	@swift-format format --in-place --configuration ./.clang-format-swift.json --recursive ./DataCompiler/
@@ -30,11 +32,15 @@ clang-format:
 	@find ./Installer/ -iname '*.h' -o -iname '*.m' | xargs clang-format -i -style=Microsoft
 	@find ./Source/3rdParty/OVMandarin -iname '*.h' -o -iname '*.cpp' -o -iname '*.mm' -o -iname '*.m' | xargs clang-format -i -style=Microsoft
 	@find ./Source/Modules/ -iname '*.h' -o -iname '*.cpp' -o -iname '*.mm' -o -iname '*.m' | xargs clang-format -i -style=Microsoft
+
 lint:
-	@swift-format lint --configuration ./.clang-format-swift.json --recursive ./DataCompiler/
+	@swift-format lint --configuration ./.clang-format-swift.json --recursive --parallel ./DataCompiler/
-	@swift-format lint --configuration ./.clang-format-swift.json --recursive ./Installer/
+	@swift-format lint --configuration ./.clang-format-swift.json --recursive --parallel ./Installer/
-	@swift-format lint --configuration ./.clang-format-swift.json --recursive ./Source/
+	@swift-format lint --configuration ./.clang-format-swift.json --recursive --parallel ./Source/
-	@swift-format lint --configuration ./.clang-format-swift.json --recursive ./UserPhraseEditor/
+	@swift-format lint --configuration ./.clang-format-swift.json --recursive --parallel ./UserPhraseEditor/
+
+batchfix:
+	@swiftlint --fix ./
 
 .PHONY: permission-check install-debug install-release
 

Packages/SwiftyOpenCC/Package.swift

@@ -21,7 +21,7 @@ let package = Package(
 			dependencies: ["OpenCC"],
 			resources: [
 				.copy("benchmark"),
-				.copy("testcases"),
+				.copy("testcases")
 			]),
 		.target(
 			name: "copencc",
@@ -66,20 +66,20 @@ let package = Package(
 				"deps/marisa-0.2.6/AUTHORS",
 				"deps/marisa-0.2.6/CMakeLists.txt",
 				"deps/marisa-0.2.6/COPYING.md",
-				"deps/marisa-0.2.6/README.md",
+				"deps/marisa-0.2.6/README.md"
 			],
 			sources: [
 				"source.cpp",
 				"src",
-				"deps/marisa-0.2.6",
+				"deps/marisa-0.2.6"
 			],
 			cxxSettings: [
 				.headerSearchPath("src"),
 				.headerSearchPath("deps/darts-clone"),
 				.headerSearchPath("deps/marisa-0.2.6/include"),
 				.headerSearchPath("deps/marisa-0.2.6/lib"),
-				.define("ENABLE_DARTS"),
+				.define("ENABLE_DARTS")
-			]),
+			])
 	],
 	cxxLanguageStandard: .cxx14
 )

Packages/SwiftyOpenCC/Tests/OpenCCTests/OpenCCTests.swift

@@ -10,7 +10,7 @@ let testCases: [(String, ChineseConverter.Options)] = [
 	("s2tw", [.traditionalize, .twStandard]),
 	("tw2s", [.simplify, .twStandard]),
 	("s2twp", [.traditionalize, .twStandard, .twIdiom]),
-	("tw2sp", [.simplify, .twStandard, .twIdiom]),
+	("tw2sp", [.simplify, .twStandard, .twIdiom])
 ]
 
 class OpenCCTests: XCTestCase {

Source/3rdParty/SindreSorhus/Preferences/Container.swift

@@ -0,0 +1,103 @@
+// Copyright (c) 2018 and onwards Sindre Sorhus (MIT License).
+/*
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+
+import SwiftUI
+
+@available(macOS 10.15, *)
+extension Preferences {
+	/**
+	Function builder for `Preferences` components used in order to restrict types of child views to be of type `Section`.
+	*/
+	@resultBuilder
+	public struct SectionBuilder {
+		public static func buildBlock(_ sections: Section...) -> [Section] {
+			sections
+		}
+	}
+
+	/**
+	A view which holds `Preferences.Section` views and does all the alignment magic similar to `NSGridView` from AppKit.
+	*/
+	public struct Container: View {
+		private let sectionBuilder: () -> [Section]
+		private let contentWidth: Double
+		private let minimumLabelWidth: Double
+		@State private var maximumLabelWidth = 0.0
+
+		/**
+		Creates an instance of container component, which handles layout of stacked `Preferences.Section` views.
+
+		Custom alignment requires content width to be specified beforehand.
+
+		- Parameters:
+			- contentWidth: A fixed width of the container's content (excluding paddings).
+			- minimumLabelWidth: A minimum width for labels within this container. By default, it will fit to the largest label.
+			- builder: A view builder that creates `Preferences.Section`'s of this container.
+		*/
+		public init(
+			contentWidth: Double,
+			minimumLabelWidth: Double = 0,
+			@SectionBuilder builder: @escaping () -> [Section]
+		) {
+			self.sectionBuilder = builder
+			self.contentWidth = contentWidth
+			self.minimumLabelWidth = minimumLabelWidth
+		}
+
+		public var body: some View {
+			let sections = sectionBuilder()
+
+			return VStack(alignment: .preferenceSectionLabel) {
+				ForEach(0..<sections.count, id: \.self) { index in
+					viewForSection(sections, index: index)
+				}
+			}
+			.modifier(Section.LabelWidthModifier(maximumWidth: $maximumLabelWidth))
+			.frame(width: CGFloat(contentWidth), alignment: .leading)
+			.padding(.vertical, 20)
+			.padding(.horizontal, 30)
+		}
+
+		@ViewBuilder
+		private func viewForSection(_ sections: [Section], index: Int) -> some View {
+			sections[index]
+			if index != sections.count - 1 && sections[index].bottomDivider {
+				Divider()
+					// Strangely doesn't work without width being specified. Probably because of custom alignment.
+					.frame(width: CGFloat(contentWidth), height: 20)
+					.alignmentGuide(.preferenceSectionLabel) {
+						$0[.leading] + CGFloat(max(minimumLabelWidth, maximumLabelWidth))
+					}
+			}
+		}
+	}
+}
+
+/// Extension with custom alignment guide for section title labels.
+@available(macOS 10.15, *)
+extension HorizontalAlignment {
+	private enum PreferenceSectionLabelAlignment: AlignmentID {
+		static func defaultValue(in context: ViewDimensions) -> CGFloat {
+			context[HorizontalAlignment.leading]
+		}
+	}
+
+	static let preferenceSectionLabel = HorizontalAlignment(PreferenceSectionLabelAlignment.self)
+}

Source/3rdParty/SindreSorhus/Preferences/Localization.swift

@@ -0,0 +1,155 @@
+// Copyright (c) 2018 and onwards Sindre Sorhus (MIT License).
+/*
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+
+import Foundation
+
+struct Localization {
+	enum Identifier {
+		case preferences
+		case preferencesEllipsized
+	}
+
+	private static let localizedStrings: [Identifier: [String: String]] = [
+		.preferences: [
+			"ar": "تفضيلات",
+			"ca": "Preferències",
+			"cs": "Předvolby",
+			"da": "Indstillinger",
+			"de": "Einstellungen",
+			"el": "Προτιμήσεις",
+			"en": "Preferences",
+			"en-AU": "Preferences",
+			"en-GB": "Preferences",
+			"es": "Preferencias",
+			"es-419": "Preferencias",
+			"fi": "Asetukset",
+			"fr": "Préférences",
+			"fr-CA": "Préférences",
+			"he": "העדפות",
+			"hi": "प्राथमिकता",
+			"hr": "Postavke",
+			"hu": "Beállítások",
+			"id": "Preferensi",
+			"it": "Preferenze",
+			"ja": "環境設定",
+			"ko": "환경설정",
+			"ms": "Keutamaan",
+			"nl": "Voorkeuren",
+			"no": "Valg",
+			"pl": "Preferencje",
+			"pt": "Preferências",
+			"pt-PT": "Preferências",
+			"ro": "Preferințe",
+			"ru": "Настройки",
+			"sk": "Nastavenia",
+			"sv": "Inställningar",
+			"th": "การตั้งค่า",
+			"tr": "Tercihler",
+			"uk": "Параметри",
+			"vi": "Tùy chọn",
+			"zh-CN": "偏好设置",
+			"zh-HK": "偏好設定",
+			"zh-TW": "偏好設定",
+		],
+		.preferencesEllipsized: [
+			"ar": "تفضيلات…",
+			"ca": "Preferències…",
+			"cs": "Předvolby…",
+			"da": "Indstillinger…",
+			"de": "Einstellungen…",
+			"el": "Προτιμήσεις…",
+			"en": "Preferences…",
+			"en-AU": "Preferences…",
+			"en-GB": "Preferences…",
+			"es": "Preferencias…",
+			"es-419": "Preferencias…",
+			"fi": "Asetukset…",
+			"fr": "Préférences…",
+			"fr-CA": "Préférences…",
+			"he": "העדפות…",
+			"hi": "प्राथमिकता…",
+			"hr": "Postavke…",
+			"hu": "Beállítások…",
+			"id": "Preferensi…",
+			"it": "Preferenze…",
+			"ja": "環境設定…",
+			"ko": "환경설정...",
+			"ms": "Keutamaan…",
+			"nl": "Voorkeuren…",
+			"no": "Valg…",
+			"pl": "Preferencje…",
+			"pt": "Preferências…",
+			"pt-PT": "Preferências…",
+			"ro": "Preferințe…",
+			"ru": "Настройки…",
+			"sk": "Nastavenia…",
+			"sv": "Inställningar…",
+			"th": "การตั้งค่า…",
+			"tr": "Tercihler…",
+			"uk": "Параметри…",
+			"vi": "Tùy chọn…",
+			"zh-CN": "偏好设置…",
+			"zh-HK": "偏好設定⋯",
+			"zh-TW": "偏好設定⋯",
+		],
+	]
+
+	/**
+	Returns the localized version of the given string.
+
+	- Parameter identifier: Identifier of the string to localize.
+
+	- Note: If the system's locale can't be determined, the English localization of the string will be returned.
+	*/
+	static subscript(identifier: Identifier) -> String {
+		// Force-unwrapped since all of the involved code is under our control.
+		let localizedDict = Localization.localizedStrings[identifier]!
+		let defaultLocalizedString = localizedDict["en"]!
+
+		// Iterate through all user-preferred languages until we find one that has a valid language code.
+		let preferredLocale =
+			Locale.preferredLanguages
+			.lazy
+			.map { Locale(identifier: $0) }
+			.first { $0.languageCode != nil }
+			?? .current
+
+		guard let languageCode = preferredLocale.languageCode else {
+			return defaultLocalizedString
+		}
+
+		// Chinese is the only language where different region codes result in different translations.
+		if languageCode == "zh" {
+			let regionCode = preferredLocale.regionCode ?? ""
+			if regionCode == "HK" || regionCode == "TW" {
+				return localizedDict["\(languageCode)-\(regionCode)"]!
+			} else {
+				// Fall back to "regular" zh-CN if neither the HK or TW region codes are found.
+				return localizedDict["\(languageCode)-CN"]!
+			}
+		} else {
+			if let localizedString = localizedDict[languageCode] {
+				return localizedString
+			}
+		}
+
+		return defaultLocalizedString
+	}
+}

Source/3rdParty/SindreSorhus/Preferences/Pane.swift

@@ -0,0 +1,112 @@
+// Copyright (c) 2018 and onwards Sindre Sorhus (MIT License).
+/*
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+
+import SwiftUI
+
+/// Represents a type that can be converted to `PreferencePane`.
+///
+/// Acts as type-eraser for `Preferences.Pane<T>`.
+public protocol PreferencePaneConvertible {
+	/**
+	Convert `self` to equivalent `PreferencePane`.
+	*/
+	func asPreferencePane() -> PreferencePane
+}
+
+@available(macOS 10.15, *)
+extension Preferences {
+	/**
+	Create a SwiftUI-based preference pane.
+
+	SwiftUI equivalent of the `PreferencePane` protocol.
+	*/
+	public struct Pane<Content: View>: View, PreferencePaneConvertible {
+		let identifier: PaneIdentifier
+		let title: String
+		let toolbarIcon: NSImage
+		let content: Content
+
+		public init(
+			identifier: PaneIdentifier,
+			title: String,
+			toolbarIcon: NSImage,
+			contentView: () -> Content
+		) {
+			self.identifier = identifier
+			self.title = title
+			self.toolbarIcon = toolbarIcon
+			self.content = contentView()
+		}
+
+		public var body: some View { content }
+
+		public func asPreferencePane() -> PreferencePane {
+			PaneHostingController(pane: self)
+		}
+	}
+
+	/**
+	Hosting controller enabling `Preferences.Pane` to be used alongside AppKit `NSViewController`'s.
+	*/
+	public final class PaneHostingController<Content: View>: NSHostingController<Content>, PreferencePane {
+		public let preferencePaneIdentifier: PaneIdentifier
+		public let preferencePaneTitle: String
+		public let toolbarItemIcon: NSImage
+
+		init(
+			identifier: PaneIdentifier,
+			title: String,
+			toolbarIcon: NSImage,
+			content: Content
+		) {
+			self.preferencePaneIdentifier = identifier
+			self.preferencePaneTitle = title
+			self.toolbarItemIcon = toolbarIcon
+			super.init(rootView: content)
+		}
+
+		public convenience init(pane: Pane<Content>) {
+			self.init(
+				identifier: pane.identifier,
+				title: pane.title,
+				toolbarIcon: pane.toolbarIcon,
+				content: pane.content
+			)
+		}
+
+		@available(*, unavailable)
+		@objc
+		dynamic required init?(coder: NSCoder) {
+			fatalError("init(coder:) has not been implemented")
+		}
+	}
+}
+
+@available(macOS 10.15, *)
+extension View {
+	/**
+	Applies font and color for a label used for describing a preference.
+	*/
+	public func preferenceDescription() -> some View {
+		font(.system(size: 11.0))
+			// TODO: Use `.foregroundStyle` when targeting macOS 12.
+			.foregroundColor(.secondary)
+	}
+}

Source/3rdParty/SindreSorhus/Preferences/PreferencePane.swift

@@ -0,0 +1,59 @@
+// Copyright (c) 2018 and onwards Sindre Sorhus (MIT License).
+/*
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+
+import Cocoa
+
+extension Preferences {
+	public struct PaneIdentifier: Hashable, RawRepresentable, Codable {
+		public let rawValue: String
+
+		public init(rawValue: String) {
+			self.rawValue = rawValue
+		}
+	}
+}
+
+public protocol PreferencePane: NSViewController {
+	var preferencePaneIdentifier: Preferences.PaneIdentifier { get }
+	var preferencePaneTitle: String { get }
+	var toolbarItemIcon: NSImage { get }
+}
+
+extension PreferencePane {
+	public var toolbarItemIdentifier: NSToolbarItem.Identifier {
+		preferencePaneIdentifier.toolbarItemIdentifier
+	}
+
+	public var toolbarItemIcon: NSImage { .empty }
+}
+
+extension Preferences.PaneIdentifier {
+	public init(_ rawValue: String) {
+		self.init(rawValue: rawValue)
+	}
+
+	public init(fromToolbarItemIdentifier itemIdentifier: NSToolbarItem.Identifier) {
+		self.init(rawValue: itemIdentifier.rawValue)
+	}
+
+	public var toolbarItemIdentifier: NSToolbarItem.Identifier {
+		NSToolbarItem.Identifier(rawValue)
+	}
+}

Source/3rdParty/SindreSorhus/Preferences/Preferences.swift

@@ -0,0 +1,22 @@
+// Copyright (c) 2018 and onwards Sindre Sorhus (MIT License).
+/*
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+
+/// The namespace for this package.
+public enum Preferences {}

Source/3rdParty/SindreSorhus/Preferences/PreferencesStyle.swift

@@ -0,0 +1,28 @@
+// Copyright (c) 2018 and onwards Sindre Sorhus (MIT License).
+/*
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+
+import Cocoa
+
+extension Preferences {
+	public enum Style {
+		case toolbarItems
+		case segmentedControl
+	}
+}

Source/3rdParty/SindreSorhus/Preferences/PreferencesStyleController.swift

@@ -0,0 +1,35 @@
+// Copyright (c) 2018 and onwards Sindre Sorhus (MIT License).
+/*
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+
+import Cocoa
+
+protocol PreferencesStyleController: AnyObject {
+	var delegate: PreferencesStyleControllerDelegate? { get set }
+	var isKeepingWindowCentered: Bool { get }
+
+	func toolbarItemIdentifiers() -> [NSToolbarItem.Identifier]
+	func toolbarItem(preferenceIdentifier: Preferences.PaneIdentifier) -> NSToolbarItem?
+	func selectTab(index: Int)
+}
+
+protocol PreferencesStyleControllerDelegate: AnyObject {
+	func activateTab(preferenceIdentifier: Preferences.PaneIdentifier, animated: Bool)
+	func activateTab(index: Int, animated: Bool)
+}

Source/3rdParty/SindreSorhus/Preferences/PreferencesTabViewController.swift

@@ -0,0 +1,261 @@
+// Copyright (c) 2018 and onwards Sindre Sorhus (MIT License).
+/*
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+
+import Cocoa
+
+final class PreferencesTabViewController: NSViewController, PreferencesStyleControllerDelegate {
+	private var activeTab: Int?
+	private var preferencePanes = [PreferencePane]()
+	private var style: Preferences.Style?
+	internal var preferencePanesCount: Int { preferencePanes.count }
+	private var preferencesStyleController: PreferencesStyleController!
+	private var isKeepingWindowCentered: Bool { preferencesStyleController.isKeepingWindowCentered }
+
+	private var toolbarItemIdentifiers: [NSToolbarItem.Identifier] {
+		preferencesStyleController?.toolbarItemIdentifiers() ?? []
+	}
+
+	var window: NSWindow! { view.window }
+
+	var isAnimated = true
+
+	var activeViewController: NSViewController? {
+		guard let activeTab = activeTab else {
+			return nil
+		}
+
+		return preferencePanes[activeTab]
+	}
+
+	override func loadView() {
+		view = NSView()
+		view.translatesAutoresizingMaskIntoConstraints = false
+	}
+
+	func configure(preferencePanes: [PreferencePane], style: Preferences.Style) {
+		self.preferencePanes = preferencePanes
+		self.style = style
+		children = preferencePanes
+
+		let toolbar = NSToolbar(identifier: "PreferencesToolbar")
+		toolbar.allowsUserCustomization = false
+		toolbar.displayMode = .iconAndLabel
+		toolbar.showsBaselineSeparator = true
+		toolbar.delegate = self
+
+		switch style {
+			case .segmentedControl:
+				preferencesStyleController = SegmentedControlStyleViewController(preferencePanes: preferencePanes)
+			case .toolbarItems:
+				preferencesStyleController = ToolbarItemStyleViewController(
+					preferencePanes: preferencePanes,
+					toolbar: toolbar,
+					centerToolbarItems: false
+				)
+		}
+		preferencesStyleController.delegate = self
+
+		// Called last so that `preferencesStyleController` can be asked for items.
+		window.toolbar = toolbar
+	}
+
+	func activateTab(preferencePane: PreferencePane, animated: Bool) {
+		activateTab(preferenceIdentifier: preferencePane.preferencePaneIdentifier, animated: animated)
+	}
+
+	func activateTab(preferenceIdentifier: Preferences.PaneIdentifier, animated: Bool) {
+		guard let index = (preferencePanes.firstIndex { $0.preferencePaneIdentifier == preferenceIdentifier }) else {
+			return activateTab(index: 0, animated: animated)
+		}
+
+		activateTab(index: index, animated: animated)
+	}
+
+	func activateTab(index: Int, animated: Bool) {
+		defer {
+			activeTab = index
+			preferencesStyleController.selectTab(index: index)
+			updateWindowTitle(tabIndex: index)
+		}
+
+		if activeTab == nil {
+			immediatelyDisplayTab(index: index)
+		} else {
+			guard index != activeTab else {
+				return
+			}
+
+			animateTabTransition(index: index, animated: animated)
+		}
+	}
+
+	func restoreInitialTab() {
+		if activeTab == nil {
+			activateTab(index: 0, animated: false)
+		}
+	}
+
+	private func updateWindowTitle(tabIndex: Int) {
+		window.title = {
+			//			if preferencePanes.count > 1 {
+			//				return preferencePanes[tabIndex].preferencePaneTitle
+			//			} else {
+			//				let preferences = Localization[.preferences]
+			//				let appName = Bundle.main.appName
+			//				return "\(appName) \(preferences)"
+			//			}
+			var preferencesTitleName = NSLocalizedString("vChewing Preferences…", comment: "")
+			preferencesTitleName.removeLast()
+			return preferencesTitleName
+		}()
+	}
+
+	/// Cached constraints that pin `childViewController` views to the content view.
+	private var activeChildViewConstraints = [NSLayoutConstraint]()
+
+	private func immediatelyDisplayTab(index: Int) {
+		let toViewController = preferencePanes[index]
+		view.addSubview(toViewController.view)
+		activeChildViewConstraints = toViewController.view.constrainToSuperviewBounds()
+		setWindowFrame(for: toViewController, animated: false)
+	}
+
+	private func animateTabTransition(index: Int, animated: Bool) {
+		guard let activeTab = activeTab else {
+			assertionFailure(
+				"animateTabTransition called before a tab was displayed; transition only works from one tab to another")
+			immediatelyDisplayTab(index: index)
+			return
+		}
+
+		let fromViewController = preferencePanes[activeTab]
+		let toViewController = preferencePanes[index]
+
+		// View controller animations only work on macOS 10.14 and newer.
+		let options: NSViewController.TransitionOptions
+		if #available(macOS 10.14, *) {
+			options = animated && isAnimated ? [.crossfade] : []
+		} else {
+			options = []
+		}
+
+		view.removeConstraints(activeChildViewConstraints)
+
+		transition(
+			from: fromViewController,
+			to: toViewController,
+			options: options
+		) { [self] in
+			activeChildViewConstraints = toViewController.view.constrainToSuperviewBounds()
+		}
+	}
+
+	override func transition(
+		from fromViewController: NSViewController,
+		to toViewController: NSViewController,
+		options: NSViewController.TransitionOptions = [],
+		completionHandler completion: (() -> Void)? = nil
+	) {
+		let isAnimated =
+			options
+			.intersection([
+				.crossfade,
+				.slideUp,
+				.slideDown,
+				.slideForward,
+				.slideBackward,
+				.slideLeft,
+				.slideRight,
+			])
+			.isEmpty == false
+
+		if isAnimated {
+			NSAnimationContext.runAnimationGroup(
+				{ context in
+					context.allowsImplicitAnimation = true
+					context.duration = 0.25
+					context.timingFunction = CAMediaTimingFunction(name: .easeInEaseOut)
+					setWindowFrame(for: toViewController, animated: true)
+
+					super.transition(
+						from: fromViewController,
+						to: toViewController,
+						options: options,
+						completionHandler: completion
+					)
+				}, completionHandler: nil)
+		} else {
+			super.transition(
+				from: fromViewController,
+				to: toViewController,
+				options: options,
+				completionHandler: completion
+			)
+		}
+	}
+
+	private func setWindowFrame(for viewController: NSViewController, animated: Bool = false) {
+		guard let window = window else {
+			preconditionFailure()
+		}
+
+		let contentSize = viewController.view.fittingSize
+
+		let newWindowSize = window.frameRect(forContentRect: CGRect(origin: .zero, size: contentSize)).size
+		var frame = window.frame
+		frame.origin.y += frame.height - newWindowSize.height
+		frame.size = newWindowSize
+
+		if isKeepingWindowCentered {
+			let horizontalDiff = (window.frame.width - newWindowSize.width) / 2
+			frame.origin.x += horizontalDiff
+		}
+
+		let animatableWindow = animated ? window.animator() : window
+		animatableWindow.setFrame(frame, display: false)
+	}
+}
+
+extension PreferencesTabViewController: NSToolbarDelegate {
+	func toolbarDefaultItemIdentifiers(_ toolbar: NSToolbar) -> [NSToolbarItem.Identifier] {
+		toolbarItemIdentifiers
+	}
+
+	func toolbarAllowedItemIdentifiers(_ toolbar: NSToolbar) -> [NSToolbarItem.Identifier] {
+		toolbarItemIdentifiers
+	}
+
+	func toolbarSelectableItemIdentifiers(_ toolbar: NSToolbar) -> [NSToolbarItem.Identifier] {
+		style == .segmentedControl ? [] : toolbarItemIdentifiers
+	}
+
+	public func toolbar(
+		_ toolbar: NSToolbar,
+		itemForItemIdentifier itemIdentifier: NSToolbarItem.Identifier,
+		willBeInsertedIntoToolbar flag: Bool
+	) -> NSToolbarItem? {
+		if itemIdentifier == .flexibleSpace {
+			return nil
+		}
+
+		return preferencesStyleController.toolbarItem(
+			preferenceIdentifier: Preferences.PaneIdentifier(fromToolbarItemIdentifier: itemIdentifier))
+	}
+}

Source/3rdParty/SindreSorhus/Preferences/PreferencesWindowController.swift

@@ -0,0 +1,188 @@
+// Copyright (c) 2018 and onwards Sindre Sorhus (MIT License).
+/*
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+
+import Cocoa
+
+extension NSWindow.FrameAutosaveName {
+	static let preferences: NSWindow.FrameAutosaveName = "com.sindresorhus.Preferences.FrameAutosaveName"
+}
+
+public final class PreferencesWindowController: NSWindowController {
+	private let tabViewController = PreferencesTabViewController()
+
+	public var isAnimated: Bool {
+		get { tabViewController.isAnimated }
+		set {
+			tabViewController.isAnimated = newValue
+		}
+	}
+
+	public var hidesToolbarForSingleItem: Bool {
+		didSet {
+			updateToolbarVisibility()
+		}
+	}
+
+	private func updateToolbarVisibility() {
+		window?.toolbar?.isVisible =
+			(hidesToolbarForSingleItem == false)
+			|| (tabViewController.preferencePanesCount > 1)
+	}
+
+	public init(
+		preferencePanes: [PreferencePane],
+		style: Preferences.Style = .toolbarItems,
+		animated: Bool = true,
+		hidesToolbarForSingleItem: Bool = true
+	) {
+		precondition(!preferencePanes.isEmpty, "You need to set at least one view controller")
+
+		let window = UserInteractionPausableWindow(
+			contentRect: preferencePanes[0].view.bounds,
+			styleMask: [
+				.titled,
+				.closable,
+			],
+			backing: .buffered,
+			defer: true
+		)
+		self.hidesToolbarForSingleItem = hidesToolbarForSingleItem
+		super.init(window: window)
+
+		window.contentViewController = tabViewController
+
+		window.titleVisibility = {
+			switch style {
+				case .toolbarItems:
+					return .visible
+				case .segmentedControl:
+					return preferencePanes.count <= 1 ? .visible : .hidden
+			}
+		}()
+
+		if #available(macOS 11.0, *), style == .toolbarItems {
+			window.toolbarStyle = .preference
+		}
+
+		tabViewController.isAnimated = animated
+		tabViewController.configure(preferencePanes: preferencePanes, style: style)
+		updateToolbarVisibility()
+	}
+
+	@available(*, unavailable)
+	override public init(window: NSWindow?) {
+		fatalError("init(window:) is not supported, use init(preferences:style:animated:)")
+	}
+
+	@available(*, unavailable)
+	public required init?(coder: NSCoder) {
+		fatalError("init(coder:) is not supported, use init(preferences:style:animated:)")
+	}
+
+	/**
+	Show the preferences window and brings it to front.
+
+	If you pass a `Preferences.PaneIdentifier`, the window will activate the corresponding tab.
+
+	- Parameter preferencePane: Identifier of the preference pane to display, or `nil` to show the tab that was open when the user last closed the window.
+
+	- Note: Unless you need to open a specific pane, prefer not to pass a parameter at all or `nil`.
+
+	- See `close()` to close the window again.
+	- See `showWindow(_:)` to show the window without the convenience of activating the app.
+	*/
+	public func show(preferencePane preferenceIdentifier: Preferences.PaneIdentifier? = nil) {
+		if let preferenceIdentifier = preferenceIdentifier {
+			tabViewController.activateTab(preferenceIdentifier: preferenceIdentifier, animated: false)
+		} else {
+			tabViewController.restoreInitialTab()
+		}
+
+		showWindow(self)
+		restoreWindowPosition()
+		NSApp.activate(ignoringOtherApps: true)
+	}
+
+	private func restoreWindowPosition() {
+		guard
+			let window = window,
+			let screenContainingWindow = window.screen
+		else {
+			return
+		}
+
+		window.setFrameOrigin(
+			CGPoint(
+				x: screenContainingWindow.visibleFrame.midX - window.frame.width / 2,
+				y: screenContainingWindow.visibleFrame.midY - window.frame.height / 2
+			))
+		window.setFrameUsingName(.preferences)
+		window.setFrameAutosaveName(.preferences)
+	}
+}
+
+extension PreferencesWindowController {
+	/// Returns the active pane if it responds to the given action.
+	override public func supplementalTarget(forAction action: Selector, sender: Any?) -> Any? {
+		if let target = super.supplementalTarget(forAction: action, sender: sender) {
+			return target
+		}
+
+		guard let activeViewController = tabViewController.activeViewController else {
+			return nil
+		}
+
+		if let target = NSApp.target(forAction: action, to: activeViewController, from: sender) as? NSResponder,
+			target.responds(to: action)
+		{
+			return target
+		}
+
+		if let target = activeViewController.supplementalTarget(forAction: action, sender: sender) as? NSResponder,
+			target.responds(to: action)
+		{
+			return target
+		}
+
+		return nil
+	}
+}
+
+@available(macOS 10.15, *)
+extension PreferencesWindowController {
+	/**
+	Create a preferences window from only SwiftUI-based preference panes.
+	*/
+	public convenience init(
+		panes: [PreferencePaneConvertible],
+		style: Preferences.Style = .toolbarItems,
+		animated: Bool = true,
+		hidesToolbarForSingleItem: Bool = true
+	) {
+		let preferencePanes = panes.map { $0.asPreferencePane() }
+
+		self.init(
+			preferencePanes: preferencePanes,
+			style: style,
+			animated: animated,
+			hidesToolbarForSingleItem: hidesToolbarForSingleItem
+		)
+	}
+}

Source/3rdParty/SindreSorhus/Preferences/Section.swift

@@ -0,0 +1,138 @@
+// Copyright (c) 2018 and onwards Sindre Sorhus (MIT License).
+/*
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+
+import SwiftUI
+
+@available(macOS 10.15, *)
+extension Preferences {
+	/**
+	Represents a section with right-aligned title and optional bottom divider.
+	*/
+	@available(macOS 10.15, *)
+	public struct Section: View {
+		/**
+		Preference key holding max width of section labels.
+		*/
+		private struct LabelWidthPreferenceKey: PreferenceKey {
+			typealias Value = Double
+
+			static var defaultValue = 0.0
+
+			static func reduce(value: inout Double, nextValue: () -> Double) {
+				let next = nextValue()
+				value = next > value ? next : value
+			}
+		}
+
+		/**
+		Convenience overlay for finding a label's dimensions using `GeometryReader`.
+		*/
+		private struct LabelOverlay: View {
+			var body: some View {
+				GeometryReader { geometry in
+					Color.clear
+						.preference(key: LabelWidthPreferenceKey.self, value: Double(geometry.size.width))
+				}
+			}
+		}
+
+		/**
+		Convenience modifier for applying `LabelWidthPreferenceKey`.
+		*/
+		struct LabelWidthModifier: ViewModifier {
+			@Binding var maximumWidth: Double
+
+			func body(content: Content) -> some View {
+				content
+					.onPreferenceChange(LabelWidthPreferenceKey.self) { newMaximumWidth in
+						maximumWidth = Double(newMaximumWidth)
+					}
+			}
+		}
+
+		public let label: AnyView
+		public let content: AnyView
+		public let bottomDivider: Bool
+		public let verticalAlignment: VerticalAlignment
+
+		/**
+		A section is responsible for controlling a single preference.
+
+		- Parameters:
+			- bottomDivider: Whether to place a `Divider` after the section content. Default is `false`.
+			- verticalAlignement: The vertical alignment of the section content.
+			- label: A view describing preference handled by this section.
+			- content: A content view.
+		*/
+		public init<Label: View, Content: View>(
+			bottomDivider: Bool = false,
+			verticalAlignment: VerticalAlignment = .firstTextBaseline,
+			label: @escaping () -> Label,
+			@ViewBuilder content: @escaping () -> Content
+		) {
+			self.label = label()
+				.overlay(LabelOverlay())
+				.eraseToAnyView()  // TODO: Remove use of `AnyView`.
+			self.bottomDivider = bottomDivider
+			self.verticalAlignment = verticalAlignment
+			let stack = VStack(alignment: .leading) { content() }
+			self.content = stack.eraseToAnyView()
+		}
+
+		/**
+		Creates instance of section, responsible for controling single preference with `Text` as  a `Label`.
+
+		- Parameters:
+			- title: A string describing preference handled by this section.
+			- bottomDivider: Whether to place a `Divider` after the section content. Default is `false`.
+			- verticalAlignement: The vertical alignment of the section content.
+			- content: A content view.
+		*/
+		public init<Content: View>(
+			title: String,
+			bottomDivider: Bool = false,
+			verticalAlignment: VerticalAlignment = .firstTextBaseline,
+			@ViewBuilder content: @escaping () -> Content
+		) {
+			let textLabel = {
+				Text(title)
+					.font(.system(size: 13.0))
+					.overlay(LabelOverlay())
+					.eraseToAnyView()
+			}
+
+			self.init(
+				bottomDivider: bottomDivider,
+				verticalAlignment: verticalAlignment,
+				label: textLabel,
+				content: content
+			)
+		}
+
+		public var body: some View {
+			HStack(alignment: verticalAlignment) {
+				label
+					.alignmentGuide(.preferenceSectionLabel) { $0[.trailing] }
+				content
+				Spacer()
+			}
+		}
+	}
+}

Source/3rdParty/SindreSorhus/Preferences/SegmentedControlStyleViewController.swift

@@ -0,0 +1,159 @@
+// Copyright (c) 2018 and onwards Sindre Sorhus (MIT License).
+/*
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+
+import Cocoa
+
+extension NSToolbarItem.Identifier {
+	static let toolbarSegmentedControlItem = Self("toolbarSegmentedControlItem")
+}
+
+extension NSUserInterfaceItemIdentifier {
+	static let toolbarSegmentedControl = Self("toolbarSegmentedControl")
+}
+
+final class SegmentedControlStyleViewController: NSViewController, PreferencesStyleController {
+	var segmentedControl: NSSegmentedControl! {
+		get { view as? NSSegmentedControl }
+		set {
+			view = newValue
+		}
+	}
+
+	var isKeepingWindowCentered: Bool { true }
+
+	weak var delegate: PreferencesStyleControllerDelegate?
+
+	private var preferencePanes: [PreferencePane]!
+
+	required init(preferencePanes: [PreferencePane]) {
+		super.init(nibName: nil, bundle: nil)
+		self.preferencePanes = preferencePanes
+	}
+
+	@available(*, unavailable)
+	required init?(coder: NSCoder) {
+		fatalError("init(coder:) has not been implemented")
+	}
+
+	override func loadView() {
+		view = createSegmentedControl(preferencePanes: preferencePanes)
+	}
+
+	fileprivate func createSegmentedControl(preferencePanes: [PreferencePane]) -> NSSegmentedControl {
+		let segmentedControl = NSSegmentedControl()
+		segmentedControl.segmentCount = preferencePanes.count
+		segmentedControl.segmentStyle = .texturedSquare
+		segmentedControl.target = self
+		segmentedControl.action = #selector(segmentedControlAction)
+		segmentedControl.identifier = .toolbarSegmentedControl
+
+		if let cell = segmentedControl.cell as? NSSegmentedCell {
+			cell.controlSize = .regular
+			cell.trackingMode = .selectOne
+		}
+
+		let segmentSize: CGSize = {
+			let insets = CGSize(width: 36, height: 12)
+			var maxSize = CGSize.zero
+
+			for preferencePane in preferencePanes {
+				let title = preferencePane.preferencePaneTitle
+				let titleSize = title.size(
+					withAttributes: [
+						.font: NSFont.systemFont(ofSize: NSFont.systemFontSize(for: .regular))
+					]
+				)
+
+				maxSize = CGSize(
+					width: max(titleSize.width, maxSize.width),
+					height: max(titleSize.height, maxSize.height)
+				)
+			}
+
+			return CGSize(
+				width: maxSize.width + insets.width,
+				height: maxSize.height + insets.height
+			)
+		}()
+
+		let segmentBorderWidth = CGFloat(preferencePanes.count) + 1
+		let segmentWidth = segmentSize.width * CGFloat(preferencePanes.count) + segmentBorderWidth
+		let segmentHeight = segmentSize.height
+		segmentedControl.frame = CGRect(x: 0, y: 0, width: segmentWidth, height: segmentHeight)
+
+		for (index, preferencePane) in preferencePanes.enumerated() {
+			segmentedControl.setLabel(preferencePane.preferencePaneTitle, forSegment: index)
+			segmentedControl.setWidth(segmentSize.width, forSegment: index)
+			if let cell = segmentedControl.cell as? NSSegmentedCell {
+				cell.setTag(index, forSegment: index)
+			}
+		}
+
+		return segmentedControl
+	}
+
+	@IBAction private func segmentedControlAction(_ control: NSSegmentedControl) {
+		delegate?.activateTab(index: control.selectedSegment, animated: true)
+	}
+
+	func selectTab(index: Int) {
+		segmentedControl.selectedSegment = index
+	}
+
+	func toolbarItemIdentifiers() -> [NSToolbarItem.Identifier] {
+		[
+			.flexibleSpace,
+			.toolbarSegmentedControlItem,
+			.flexibleSpace,
+		]
+	}
+
+	func toolbarItem(preferenceIdentifier: Preferences.PaneIdentifier) -> NSToolbarItem? {
+		let toolbarItemIdentifier = preferenceIdentifier.toolbarItemIdentifier
+		precondition(toolbarItemIdentifier == .toolbarSegmentedControlItem)
+
+		// When the segments outgrow the window, we need to provide a group of
+		// NSToolbarItems with custom menu item labels and action handling for the
+		// context menu that pops up at the right edge of the window.
+		let toolbarItemGroup = NSToolbarItemGroup(itemIdentifier: toolbarItemIdentifier)
+		toolbarItemGroup.view = segmentedControl
+		toolbarItemGroup.subitems = preferencePanes.enumerated().map { index, preferenceable -> NSToolbarItem in
+			let item = NSToolbarItem(itemIdentifier: .init("segment-\(preferenceable.preferencePaneTitle)"))
+			item.label = preferenceable.preferencePaneTitle
+
+			let menuItem = NSMenuItem(
+				title: preferenceable.preferencePaneTitle,
+				action: #selector(segmentedControlMenuAction),
+				keyEquivalent: ""
+			)
+			menuItem.tag = index
+			menuItem.target = self
+			item.menuFormRepresentation = menuItem
+
+			return item
+		}
+
+		return toolbarItemGroup
+	}
+
+	@IBAction private func segmentedControlMenuAction(_ menuItem: NSMenuItem) {
+		delegate?.activateTab(index: menuItem.tag, animated: true)
+	}
+}

Source/3rdParty/SindreSorhus/Preferences/ToolbarItemStyleViewController.swift

@@ -0,0 +1,77 @@
+// Copyright (c) 2018 and onwards Sindre Sorhus (MIT License).
+/*
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+
+import Cocoa
+
+final class ToolbarItemStyleViewController: NSObject, PreferencesStyleController {
+	let toolbar: NSToolbar
+	let centerToolbarItems: Bool
+	let preferencePanes: [PreferencePane]
+	var isKeepingWindowCentered: Bool { centerToolbarItems }
+	weak var delegate: PreferencesStyleControllerDelegate?
+
+	init(preferencePanes: [PreferencePane], toolbar: NSToolbar, centerToolbarItems: Bool) {
+		self.preferencePanes = preferencePanes
+		self.toolbar = toolbar
+		self.centerToolbarItems = centerToolbarItems
+	}
+
+	func toolbarItemIdentifiers() -> [NSToolbarItem.Identifier] {
+		var toolbarItemIdentifiers = [NSToolbarItem.Identifier]()
+
+		if centerToolbarItems {
+			toolbarItemIdentifiers.append(.flexibleSpace)
+		}
+
+		for preferencePane in preferencePanes {
+			toolbarItemIdentifiers.append(preferencePane.toolbarItemIdentifier)
+		}
+
+		if centerToolbarItems {
+			toolbarItemIdentifiers.append(.flexibleSpace)
+		}
+
+		return toolbarItemIdentifiers
+	}
+
+	func toolbarItem(preferenceIdentifier: Preferences.PaneIdentifier) -> NSToolbarItem? {
+		guard let preference = (preferencePanes.first { $0.preferencePaneIdentifier == preferenceIdentifier }) else {
+			preconditionFailure()
+		}
+
+		let toolbarItem = NSToolbarItem(itemIdentifier: preferenceIdentifier.toolbarItemIdentifier)
+		toolbarItem.label = preference.preferencePaneTitle
+		toolbarItem.image = preference.toolbarItemIcon
+		toolbarItem.target = self
+		toolbarItem.action = #selector(toolbarItemSelected)
+		return toolbarItem
+	}
+
+	@IBAction private func toolbarItemSelected(_ toolbarItem: NSToolbarItem) {
+		delegate?.activateTab(
+			preferenceIdentifier: Preferences.PaneIdentifier(fromToolbarItemIdentifier: toolbarItem.itemIdentifier),
+			animated: true
+		)
+	}
+
+	func selectTab(index: Int) {
+		toolbar.selectedItemIdentifier = preferencePanes[index].toolbarItemIdentifier
+	}
+}

Source/3rdParty/SindreSorhus/Preferences/Utilities.swift

@@ -0,0 +1,136 @@
+// Copyright (c) 2018 and onwards Sindre Sorhus (MIT License).
+/*
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+
+import Cocoa
+import SwiftUI
+
+extension NSImage {
+	static var empty: NSImage { NSImage(size: .zero) }
+}
+
+extension NSView {
+	@discardableResult
+	func constrainToSuperviewBounds() -> [NSLayoutConstraint] {
+		guard let superview = superview else {
+			preconditionFailure("superview has to be set first")
+		}
+
+		var result = [NSLayoutConstraint]()
+		result.append(
+			contentsOf: NSLayoutConstraint.constraints(
+				withVisualFormat: "H:|-0-[subview]-0-|", options: .directionLeadingToTrailing, metrics: nil,
+				views: ["subview": self]))
+		result.append(
+			contentsOf: NSLayoutConstraint.constraints(
+				withVisualFormat: "V:|-0-[subview]-0-|", options: .directionLeadingToTrailing, metrics: nil,
+				views: ["subview": self]))
+		translatesAutoresizingMaskIntoConstraints = false
+		superview.addConstraints(result)
+
+		return result
+	}
+}
+
+extension NSEvent {
+	/// Events triggered by user interaction.
+	static let userInteractionEvents: [NSEvent.EventType] = {
+		var events: [NSEvent.EventType] = [
+			.leftMouseDown,
+			.leftMouseUp,
+			.rightMouseDown,
+			.rightMouseUp,
+			.leftMouseDragged,
+			.rightMouseDragged,
+			.keyDown,
+			.keyUp,
+			.scrollWheel,
+			.tabletPoint,
+			.otherMouseDown,
+			.otherMouseUp,
+			.otherMouseDragged,
+			.gesture,
+			.magnify,
+			.swipe,
+			.rotate,
+			.beginGesture,
+			.endGesture,
+			.smartMagnify,
+			.quickLook,
+			.directTouch,
+		]
+
+		if #available(macOS 10.10.3, *) {
+			events.append(.pressure)
+		}
+
+		return events
+	}()
+
+	/// Whether the event was triggered by user interaction.
+	var isUserInteraction: Bool { NSEvent.userInteractionEvents.contains(type) }
+}
+
+extension Bundle {
+	var appName: String {
+		string(forInfoDictionaryKey: "CFBundleDisplayName")
+			?? string(forInfoDictionaryKey: "CFBundleName")
+			?? string(forInfoDictionaryKey: "CFBundleExecutable")
+			?? "<Unknown App Name>"
+	}
+
+	private func string(forInfoDictionaryKey key: String) -> String? {
+		// `object(forInfoDictionaryKey:)` prefers localized info dictionary over the regular one automatically
+		object(forInfoDictionaryKey: key) as? String
+	}
+}
+
+/// A window that allows you to disable all user interactions via `isUserInteractionEnabled`.
+///
+/// Used to avoid breaking animations when the user clicks too fast. Disable user interactions during animations and you're set.
+class UserInteractionPausableWindow: NSWindow {  // swiftlint:disable:this final_class
+	var isUserInteractionEnabled = true
+
+	override func sendEvent(_ event: NSEvent) {
+		guard isUserInteractionEnabled || !event.isUserInteraction else {
+			return
+		}
+
+		super.sendEvent(event)
+	}
+
+	override func responds(to selector: Selector!) -> Bool {
+		// Deactivate toolbar interactions from the Main Menu.
+		if selector == #selector(NSWindow.toggleToolbarShown(_:)) {
+			return false
+		}
+
+		return super.responds(to: selector)
+	}
+}
+
+@available(macOS 10.15, *)
+extension View {
+	/**
+	Equivalent to `.eraseToAnyPublisher()` from the Combine framework.
+	*/
+	func eraseToAnyView() -> AnyView {
+		AnyView(self)
+	}
+}

Source/3rdParty/VDKComboBox/VDKComboBox.swift

@@ -0,0 +1,70 @@
+//
+//  Ref: https://stackoverflow.com/a/71058587/4162914
+//  License: https://creativecommons.org/licenses/by-sa/4.0/
+//
+
+import SwiftUI
+
+// MARK: - NSComboBox
+// Ref: https://stackoverflow.com/a/71058587/4162914
+@available(macOS 11.0, *)
+struct ComboBox: NSViewRepresentable {
+	// The items that will show up in the pop-up menu:
+	var items: [String]
+
+	// The property on our parent view that gets synced to the current
+	// stringValue of the NSComboBox, whether the user typed it in or
+	// selected it from the list:
+	@Binding var text: String
+
+	func makeCoordinator() -> Coordinator {
+		return Coordinator(self)
+	}
+
+	func makeNSView(context: Context) -> NSComboBox {
+		let comboBox = NSComboBox()
+		comboBox.usesDataSource = false
+		comboBox.completes = false
+		comboBox.delegate = context.coordinator
+		comboBox.intercellSpacing = NSSize(width: 0.0, height: 10.0)
+		return comboBox
+	}
+
+	func updateNSView(_ nsView: NSComboBox, context: Context) {
+		nsView.removeAllItems()
+		nsView.addItems(withObjectValues: items)
+
+		// ComboBox doesn't automatically select the item matching its text;
+		// we must do that manually. But we need the delegate to ignore that
+		// selection-change or we'll get a "state modified during view update;
+		// will cause undefined behavior" warning.
+		context.coordinator.ignoreSelectionChanges = true
+		nsView.stringValue = text
+		nsView.selectItem(withObjectValue: text)
+		context.coordinator.ignoreSelectionChanges = false
+	}
+
+	class Coordinator: NSObject, NSComboBoxDelegate {
+		var parent: ComboBox
+		var ignoreSelectionChanges: Bool = false
+
+		init(_ parent: ComboBox) {
+			self.parent = parent
+		}
+
+		func comboBoxSelectionDidChange(_ notification: Notification) {
+			if !ignoreSelectionChanges,
+				let box: NSComboBox = notification.object as? NSComboBox,
+				let newStringValue: String = box.objectValueOfSelectedItem as? String
+			{
+				parent.text = newStringValue
+			}
+		}
+
+		func controlTextDidEndEditing(_ obj: Notification) {
+			if let textField = obj.object as? NSTextField {
+				parent.text = textField.stringValue
+			}
+		}
+	}
+}

Source/Modules/AppDelegate.swift

@@ -27,156 +27,6 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 import Cocoa
 import InputMethodKit
 
-private let kCheckUpdateAutomatically = "CheckUpdateAutomatically"
-private let kNextUpdateCheckDateKey = "NextUpdateCheckDate"
-private let kUpdateInfoEndpointKey = "UpdateInfoEndpoint"
-private let kUpdateInfoSiteKey = "UpdateInfoSite"
-private let kVersionDescription = "VersionDescription"
-private let kNextCheckInterval: TimeInterval = 86400.0
-private let kTimeoutInterval: TimeInterval = 60.0
-
-struct VersionUpdateReport {
-	var siteUrl: URL?
-	var currentShortVersion: String = ""
-	var currentVersion: String = ""
-	var remoteShortVersion: String = ""
-	var remoteVersion: String = ""
-	var versionDescription: String = ""
-}
-
-enum VersionUpdateApiResult {
-	case shouldUpdate(report: VersionUpdateReport)
-	case noNeedToUpdate
-	case ignored
-}
-
-enum VersionUpdateApiError: Error, LocalizedError {
-	case connectionError(message: String)
-
-	var errorDescription: String? {
-		switch self {
-			case .connectionError(let message):
-				return String(
-					format: NSLocalizedString(
-						"There may be no internet connection or the server failed to respond.\n\nError message: %@",
-						comment: ""), message)
-		}
-	}
-}
-
-struct VersionUpdateApi {
-	static func check(
-		forced: Bool, callback: @escaping (Result<VersionUpdateApiResult, Error>) -> Void
-	) -> URLSessionTask? {
-		guard let infoDict = Bundle.main.infoDictionary,
-			let updateInfoURLString = infoDict[kUpdateInfoEndpointKey] as? String,
-			let updateInfoURL = URL(string: updateInfoURLString)
-		else {
-			return nil
-		}
-
-		let request = URLRequest(
-			url: updateInfoURL, cachePolicy: .reloadIgnoringLocalCacheData,
-			timeoutInterval: kTimeoutInterval)
-		let task = URLSession.shared.dataTask(with: request) { data, response, error in
-			if let error = error {
-				DispatchQueue.main.async {
-					forced
-						? callback(
-							.failure(
-								VersionUpdateApiError.connectionError(
-									message: error.localizedDescription)))
-						: callback(.success(.ignored))
-				}
-				return
-			}
-
-			do {
-				guard
-					let plist = try PropertyListSerialization.propertyList(
-						from: data ?? Data(), options: [], format: nil) as? [AnyHashable: Any],
-					let remoteVersion = plist[kCFBundleVersionKey] as? String,
-					let infoDict = Bundle.main.infoDictionary
-				else {
-					DispatchQueue.main.async {
-						forced
-							? callback(.success(.noNeedToUpdate))
-							: callback(.success(.ignored))
-					}
-					return
-				}
-
-				// TODO: Validate info (e.g. bundle identifier)
-				// TODO: Use HTML to display change log, need a new key like UpdateInfoChangeLogURL for this
-
-				let currentVersion = infoDict[kCFBundleVersionKey as String] as? String ?? ""
-				let result = currentVersion.compare(
-					remoteVersion, options: .numeric, range: nil, locale: nil)
-
-				if result != .orderedAscending {
-					DispatchQueue.main.async {
-						forced
-							? callback(.success(.noNeedToUpdate))
-							: callback(.success(.ignored))
-					}
-					IME.prtDebugIntel(
-						"vChewingDebug: Update // Order is not Ascending, assuming that there's no new version available."
-					)
-					return
-				}
-				IME.prtDebugIntel(
-					"vChewingDebug: Update // New version detected, proceeding to the next phase.")
-				guard let siteInfoURLString = plist[kUpdateInfoSiteKey] as? String,
-					let siteInfoURL = URL(string: siteInfoURLString)
-				else {
-					DispatchQueue.main.async {
-						forced
-							? callback(.success(.noNeedToUpdate))
-							: callback(.success(.ignored))
-					}
-					IME.prtDebugIntel(
-						"vChewingDebug: Update // Failed from retrieving / parsing URL intel.")
-					return
-				}
-				IME.prtDebugIntel(
-					"vChewingDebug: Update // URL intel retrieved, proceeding to the next phase.")
-				var report = VersionUpdateReport(siteUrl: siteInfoURL)
-				var versionDescription = ""
-				let versionDescriptions = plist[kVersionDescription] as? [AnyHashable: Any]
-				if let versionDescriptions = versionDescriptions {
-					var locale = "en"
-					let supportedLocales = ["en", "zh-Hant", "zh-Hans", "ja"]
-					let preferredTags = Bundle.preferredLocalizations(from: supportedLocales)
-					if let first = preferredTags.first {
-						locale = first
-					}
-					versionDescription =
-						versionDescriptions[locale] as? String ?? versionDescriptions["en"]
-						as? String ?? ""
-					if !versionDescription.isEmpty {
-						versionDescription = "\n\n" + versionDescription
-					}
-				}
-				report.currentShortVersion = infoDict["CFBundleShortVersionString"] as? String ?? ""
-				report.currentVersion = currentVersion
-				report.remoteShortVersion = plist["CFBundleShortVersionString"] as? String ?? ""
-				report.remoteVersion = remoteVersion
-				report.versionDescription = versionDescription
-				DispatchQueue.main.async {
-					callback(.success(.shouldUpdate(report: report)))
-				}
-				IME.prtDebugIntel("vChewingDebug: Update // Callbck Complete.")
-			} catch {
-				DispatchQueue.main.async {
-					forced ? callback(.success(.noNeedToUpdate)) : callback(.success(.ignored))
-				}
-			}
-		}
-		task.resume()
-		return task
-	}
-}
-
 @objc(AppDelegate)
 class AppDelegate: NSObject, NSApplicationDelegate, ctlNonModalAlertWindowDelegate,
 	FSEventStreamHelperDelegate
@@ -220,7 +70,7 @@ class AppDelegate: NSObject, NSApplicationDelegate, ctlNonModalAlertWindowDelega
 		mgrPrefs.setMissingDefaults()
 
 		// 只要使用者沒有勾選檢查更新、沒有主動做出要檢查更新的操作，就不要檢查更新。
-		if (UserDefaults.standard.object(forKey: kCheckUpdateAutomatically) != nil) == true {
+		if (UserDefaults.standard.object(forKey: VersionUpdateApi.kCheckUpdateAutomatically) != nil) == true {
 			checkForUpdate()
 		}
 	}
@@ -262,18 +112,18 @@ class AppDelegate: NSObject, NSApplicationDelegate, ctlNonModalAlertWindowDelega
 
 		// time for update?
 		if !forced {
-			if UserDefaults.standard.bool(forKey: kCheckUpdateAutomatically) == false {
+			if UserDefaults.standard.bool(forKey: VersionUpdateApi.kCheckUpdateAutomatically) == false {
 				return
 			}
 			let now = Date()
-			let date = UserDefaults.standard.object(forKey: kNextUpdateCheckDateKey) as? Date ?? now
+			let date = UserDefaults.standard.object(forKey: VersionUpdateApi.kNextUpdateCheckDateKey) as? Date ?? now
 			if now.compare(date) == .orderedAscending {
 				return
 			}
 		}
 
-		let nextUpdateDate = Date(timeInterval: kNextCheckInterval, since: Date())
+		let nextUpdateDate = Date(timeInterval: VersionUpdateApi.kNextCheckInterval, since: Date())
-		UserDefaults.standard.set(nextUpdateDate, forKey: kNextUpdateCheckDateKey)
+		UserDefaults.standard.set(nextUpdateDate, forKey: VersionUpdateApi.kNextUpdateCheckDateKey)
 
 		checkTask = VersionUpdateApi.check(forced: forced) { [self] result in
 			defer {

Source/Modules/ControllerModules/AppleKeyboardConverter.swift

@@ -25,43 +25,30 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 import Cocoa
 
 @objc class AppleKeyboardConverter: NSObject {
-	@objc class func isDynamicBaseKeyboardLayoutEnabled() -> Bool {
+	static let arrDynamicBasicKeyLayout: [String] = [
-		switch mgrPrefs.basisKeyboardLayout {
+		"com.apple.keylayout.ZhuyinBopomofo",
-			case "com.apple.keylayout.ZhuyinBopomofo":
+		"com.apple.keylayout.ZhuyinEten",
-				return true
+		"org.atelierInmu.vChewing.keyLayouts.vchewingdachen",
-			case "com.apple.keylayout.ZhuyinEten":
+		"org.atelierInmu.vChewing.keyLayouts.vchewingmitac",
-				return true
+		"org.atelierInmu.vChewing.keyLayouts.vchewingibm",
-			case "org.atelierInmu.vChewing.keyLayouts.vchewingdachen":
+		"org.atelierInmu.vChewing.keyLayouts.vchewingseigyou",
-				return true
+		"org.atelierInmu.vChewing.keyLayouts.vchewingeten",
-			case "org.atelierInmu.vChewing.keyLayouts.vchewingmitac":
+		"org.unknown.keylayout.vChewingDachen",
-				return true
+		"org.unknown.keylayout.vChewingFakeSeigyou",
-			case "org.atelierInmu.vChewing.keyLayouts.vchewingibm":
+		"org.unknown.keylayout.vChewingETen",
-				return true
+		"org.unknown.keylayout.vChewingIBM",
-			case "org.atelierInmu.vChewing.keyLayouts.vchewingseigyou":
+		"org.unknown.keylayout.vChewingMiTAC",
-				return true
+	]
-			case "org.atelierInmu.vChewing.keyLayouts.vchewingeten":
+	@objc class func isDynamicBasicKeyboardLayoutEnabled() -> Bool {
-				return true
+		return AppleKeyboardConverter.arrDynamicBasicKeyLayout.contains(mgrPrefs.basicKeyboardLayout)
-			case "org.unknown.keylayout.vChewingDachen":
-				return true
-			case "org.unknown.keylayout.vChewingFakeSeigyou":
-				return true
-			case "org.unknown.keylayout.vChewingETen":
-				return true
-			case "org.unknown.keylayout.vChewingIBM":
-				return true
-			case "org.unknown.keylayout.vChewingMiTAC":
-				return true
-			default:
-				return false
-		}
 	}
 	// 處理 Apple 注音鍵盤佈局類型。
 	@objc class func cnvApple2ABC(_ charCode: UniChar) -> UniChar {
 		var charCode = charCode
 		// 在按鍵資訊被送往 OVMandarin 之前，先轉換為可以被 OVMandarin 正常處理的資訊。
-		if self.isDynamicBaseKeyboardLayoutEnabled() {
+		if self.isDynamicBasicKeyboardLayoutEnabled() {
 			// 針對不同的 Apple 動態鍵盤佈局糾正大寫英文輸入。
-			switch mgrPrefs.basisKeyboardLayout {
+			switch mgrPrefs.basicKeyboardLayout {
 				case "com.apple.keylayout.ZhuyinBopomofo":
 					do {
 						if charCode == 97 { charCode = UniChar(65) }
@@ -186,7 +173,7 @@ import Cocoa
 			// 摁了 Alt 的符號。
 			if charCode == 8212 { charCode = UniChar(45) }
 			// Apple 倚天注音佈局追加符號糾正項目。
-			if mgrPrefs.basisKeyboardLayout == "com.apple.keylayout.ZhuyinEten" {
+			if mgrPrefs.basicKeyboardLayout == "com.apple.keylayout.ZhuyinEten" {
 				if charCode == 65343 { charCode = UniChar(95) }
 				if charCode == 65306 { charCode = UniChar(58) }
 				if charCode == 65311 { charCode = UniChar(63) }
@@ -199,9 +186,9 @@ import Cocoa
 
 	@objc class func cnvStringApple2ABC(_ strProcessed: String) -> String {
 		var strProcessed = strProcessed
-		if self.isDynamicBaseKeyboardLayoutEnabled() {
+		if self.isDynamicBasicKeyboardLayoutEnabled() {
 			// 針對不同的 Apple 動態鍵盤佈局糾正大寫英文輸入。
-			switch mgrPrefs.basisKeyboardLayout {
+			switch mgrPrefs.basicKeyboardLayout {
 				case "com.apple.keylayout.ZhuyinBopomofo":
 					do {
 						if strProcessed == "a" { strProcessed = "A" }
@@ -326,7 +313,7 @@ import Cocoa
 			// 摁了 Alt 的符號。
 			if strProcessed == "—" { strProcessed = "-" }
 			// Apple 倚天注音佈局追加符號糾正項目。
-			if mgrPrefs.basisKeyboardLayout == "com.apple.keylayout.ZhuyinEten" {
+			if mgrPrefs.basicKeyboardLayout == "com.apple.keylayout.ZhuyinEten" {
 				if strProcessed == "＿" { strProcessed = "_" }
 				if strProcessed == "：" { strProcessed = ":" }
 				if strProcessed == "？" { strProcessed = "?" }

Source/Modules/ControllerModules/InputState.swift

@@ -243,7 +243,7 @@ class InputState: NSObject {
 			self.markerIndex = markerIndex
 			let begin = min(cursorIndex, markerIndex)
 			let end = max(cursorIndex, markerIndex)
-			markedRange = NSMakeRange(Int(begin), Int(end - begin))
+			markedRange = NSRange(location: Int(begin), length: Int(end - begin))
 			self.readings = readings
 			super.init(composingBuffer: composingBuffer, cursorIndex: cursorIndex)
 		}

Source/Modules/ControllerModules/KeyHandler.mm

@@ -46,9 +46,7 @@ static double FindHighestScore(const std::vector<Gramambular::NodeAnchor> &nodes
     {
         double score = ni->node->highestUnigramScore();
         if (score > highestScore)
-        {
             highestScore = score;
-        }
     }
     return highestScore + epsilon;
 }
@@ -98,14 +96,7 @@ static NSString *const kGraphVizOutputfile = @"/tmp/vChewing-visualization.dot";
 
 - (BOOL)isBuilderEmpty
 {
-    if (_builder->grid().width() == 0)
+    return (_builder->grid().width() == 0);
-    {
-        return YES;
-    }
-    else
-    {
-        return NO;
-    }
 }
 
 - (void)setInputMode:(NSString *)value
@@ -114,25 +105,17 @@ static NSString *const kGraphVizOutputfile = @"/tmp/vChewing-visualization.dot";
     vChewing::LMInstantiator *newLanguageModel;
     vChewing::UserOverrideModel *newUserOverrideModel;
 
-    if ([value isKindOfClass:[NSString class]] && [value isEqual:imeModeCHS])
+    BOOL isCHS = [value isKindOfClass:[NSString class]] && [value isEqual:imeModeCHS];
-    {
+
-        newInputMode = imeModeCHS;
+    newInputMode = isCHS ? imeModeCHS : imeModeCHT;
-        newLanguageModel = [mgrLangModel lmCHS];
+    newLanguageModel = isCHS ? [mgrLangModel lmCHS] : [mgrLangModel lmCHT];
-        newUserOverrideModel = [mgrLangModel userOverrideModelCHS];
+    newUserOverrideModel = isCHS ? [mgrLangModel userOverrideModelCHS] : [mgrLangModel userOverrideModelCHT];
-    }
-    else
-    {
-        newInputMode = imeModeCHT;
-        newLanguageModel = [mgrLangModel lmCHT];
-        newUserOverrideModel = [mgrLangModel userOverrideModelCHT];
-    }
 
     // Report the current Input Mode to ctlInputMethod:
     ctlInputMethod.currentInputMode = newInputMode;
 
-    // Synchronize the Preference Setting "setPhraseReplacementEnabled" to the new LM.
+    // Synchronize the sub-languageModel state settings to the new LM.
     newLanguageModel->setPhraseReplacementEnabled(mgrPrefs.phraseReplacementEnabled);
-    // Also other sub language models:
     newLanguageModel->setSymbolEnabled(mgrPrefs.symbolInputEnabled);
     newLanguageModel->setCNSEnabled(mgrPrefs.cns11643Enabled);
 
@@ -151,24 +134,16 @@ static NSString *const kGraphVizOutputfile = @"/tmp/vChewing-visualization.dot";
         }
 
         if (!_bpmfReadingBuffer->isEmpty())
-        {
             _bpmfReadingBuffer->clear();
-        }
     }
 }
 
 - (void)dealloc
-{
+{ // clean up everything
-    // clean up everything
     if (_bpmfReadingBuffer)
-    {
         delete _bpmfReadingBuffer;
-    }
-
     if (_builder)
-    {
         delete _builder;
-    }
 }
 
 - (instancetype)init
@@ -196,36 +171,35 @@ static NSString *const kGraphVizOutputfile = @"/tmp/vChewing-visualization.dot";
 
 - (void)syncWithPreferences
 {
-    NSInteger layout = mgrPrefs.keyboardLayout;
+    switch (mgrPrefs.mandarinParser)
-    switch (layout)
     {
-    case KeyboardLayoutOfStandard:
+    case MandarinParserOfStandard:
         _bpmfReadingBuffer->setKeyboardLayout(Mandarin::BopomofoKeyboardLayout::StandardLayout());
         break;
-    case KeyboardLayoutOfEten:
+    case MandarinParserOfEten:
         _bpmfReadingBuffer->setKeyboardLayout(Mandarin::BopomofoKeyboardLayout::ETenLayout());
         break;
-    case KeyboardLayoutOfHsu:
+    case MandarinParserOfHsu:
         _bpmfReadingBuffer->setKeyboardLayout(Mandarin::BopomofoKeyboardLayout::HsuLayout());
         break;
-    case KeyboardLayoutOfEen26:
+    case MandarinParserOfEen26:
         _bpmfReadingBuffer->setKeyboardLayout(Mandarin::BopomofoKeyboardLayout::ETen26Layout());
         break;
-    case KeyboardLayoutOfIBM:
+    case MandarinParserOfIBM:
         _bpmfReadingBuffer->setKeyboardLayout(Mandarin::BopomofoKeyboardLayout::IBMLayout());
         break;
-    case KeyboardLayoutOfMiTAC:
+    case MandarinParserOfMiTAC:
         _bpmfReadingBuffer->setKeyboardLayout(Mandarin::BopomofoKeyboardLayout::MiTACLayout());
         break;
-    case KeyboardLayoutOfFakeSeigyou:
+    case MandarinParserOfFakeSeigyou:
         _bpmfReadingBuffer->setKeyboardLayout(Mandarin::BopomofoKeyboardLayout::FakeSeigyouLayout());
         break;
-    case KeyboardLayoutOfHanyuPinyin:
+    case MandarinParserOfHanyuPinyin:
         _bpmfReadingBuffer->setKeyboardLayout(Mandarin::BopomofoKeyboardLayout::HanyuPinyinLayout());
         break;
     default:
         _bpmfReadingBuffer->setKeyboardLayout(Mandarin::BopomofoKeyboardLayout::StandardLayout());
-        mgrPrefs.keyboardLayout = KeyboardLayoutOfStandard;
+        mgrPrefs.mandarinParser = MandarinParserOfStandard;
     }
 }
 
@@ -241,21 +215,16 @@ static NSString *const kGraphVizOutputfile = @"/tmp/vChewing-visualization.dot";
         // in the user override model.
         BOOL addToOverrideModel = YES;
         if (selectedNode.spanningLength != [value count])
-        {
             addToOverrideModel = NO;
-        }
+
         if (addToOverrideModel)
         {
             double score = selectedNode.node->scoreForCandidate(stringValue);
-            if (score <= -12)
+            if (score <= -12) // 威注音的 SymbolLM 的 Score 是 -12。
-            { // 威注音的 SymbolLM 的 Score 是 -12。
                 addToOverrideModel = NO;
-            }
         }
         if (addToOverrideModel)
-        {
             _userOverrideModel->observe(_walkedNodes, cursorIndex, stringValue, [[NSDate date] timeIntervalSince1970]);
-        }
     }
     [self _walk];
 
@@ -265,15 +234,11 @@ static NSString *const kGraphVizOutputfile = @"/tmp/vChewing-visualization.dot";
         for (auto node : _walkedNodes)
         {
             if (nextPosition >= cursorIndex)
-            {
                 break;
-            }
             nextPosition += node.spanningLength;
         }
         if (nextPosition <= _builder->length())
-        {
             _builder->setCursorIndex(nextPosition);
-        }
     }
 }
 
@@ -284,13 +249,13 @@ static NSString *const kGraphVizOutputfile = @"/tmp/vChewing-visualization.dot";
     _walkedNodes.clear();
 }
 
-- (std::string)_currentLayout
+- (std::string)_currentMandarinParser
 {
-    NSString *keyboardLayoutName = mgrPrefs.keyboardLayoutName;
+    return std::string(mgrPrefs.mandarinParserName.UTF8String) + std::string("_");
-    std::string layout = std::string(keyboardLayoutName.UTF8String) + std::string("_");
-    return layout;
 }
 
+// MARK: - Handling Input
+
 - (BOOL)handleInput:(keyParser *)input
               state:(InputState *)inState
       stateCallback:(void (^)(InputState *))stateCallback
@@ -302,18 +267,14 @@ static NSString *const kGraphVizOutputfile = @"/tmp/vChewing-visualization.dot";
 
     // if the inputText is empty, it's a function key combination, we ignore it
     if (!input.inputText.length)
-    {
         return NO;
-    }
 
     // if the composing buffer is empty and there's no reading, and there is some function key combination, we ignore it
     BOOL isFunctionKey =
         ([input isCommandHold] || [input isOptionHotKey] || [input isNumericPad]) || [input isControlHotKey];
     if (![state isKindOfClass:[InputStateNotEmpty class]] &&
         ![state isKindOfClass:[InputStateAssociatedPhrases class]] && isFunctionKey)
-    {
         return NO;
-    }
 
     // Caps Lock processing: if Caps Lock is ON, temporarily disable bopomofo.
     // Note: Alphanumerical mode processing.
@@ -331,16 +292,12 @@ static NSString *const kGraphVizOutputfile = @"/tmp/vChewing-visualization.dot";
 
         // When shift is pressed, don't do further processing, since it outputs capital letter anyway.
         if ([input isShiftHold])
-        {
             return NO;
-        }
 
         // if ASCII but not printable, don't use insertText:replacementRange: as many apps don't handle non-ASCII char
         // insertions.
         if (charCode < 0x80 && !isprint(charCode))
-        {
             return NO;
-        }
 
         // commit everything in the buffer.
         InputStateCommitting *committingState =
@@ -369,9 +326,7 @@ static NSString *const kGraphVizOutputfile = @"/tmp/vChewing-visualization.dot";
 
     // MARK: Handle Candidates
     if ([state isKindOfClass:[InputStateChoosingCandidate class]])
-    {
         return [self _handleCandidateState:state input:input stateCallback:stateCallback errorCallback:errorCallback];
-    }
 
     // MARK: Handle Associated Phrases
     if ([state isKindOfClass:[InputStateAssociatedPhrases class]])
@@ -381,9 +336,7 @@ static NSString *const kGraphVizOutputfile = @"/tmp/vChewing-visualization.dot";
                                     stateCallback:stateCallback
                                     errorCallback:errorCallback];
         if (result)
-        {
             return YES;
-        }
         state = [[InputStateEmpty alloc] init];
         stateCallback(state);
     }
@@ -396,9 +349,7 @@ static NSString *const kGraphVizOutputfile = @"/tmp/vChewing-visualization.dot";
                                 input:input
                         stateCallback:stateCallback
                         errorCallback:errorCallback])
-        {
             return YES;
-        }
         state = [marking convertToInputting];
         stateCallback(state);
     }
@@ -426,14 +377,14 @@ static NSString *const kGraphVizOutputfile = @"/tmp/vChewing-visualization.dot";
     }
 
     // see if we have composition if Enter/Space is hit and buffer is not empty
-    // this is bit-OR'ed so that the tone marker key is also taken into account
+    // we use "OR" conditioning so that the tone marker key is also taken into account
     composeReading |= (!_bpmfReadingBuffer->isEmpty() && ([input isSpace] || [input isEnter]));
     if (composeReading)
     {
         // combine the reading
         std::string reading = _bpmfReadingBuffer->syllable().composedString();
 
-        // see if we have a unigram for this
+        // see if we have an unigram for this
         if (!_languageModel->hasUnigramsForKey(reading))
         {
             [IME prtDebugIntel:@"B49C0979"];
@@ -493,9 +444,7 @@ static NSString *const kGraphVizOutputfile = @"/tmp/vChewing-visualization.dot";
                         (InputStateAssociatedPhrases *)[self buildAssociatePhraseStateWithKey:text
                                                                               useVerticalMode:input.useVerticalMode];
                     if (associatedPhrases)
-                    {
                         stateCallback(associatedPhrases);
-                    }
                     else
                     {
                         InputStateEmpty *empty = [[InputStateEmpty alloc] init];
@@ -504,9 +453,7 @@ static NSString *const kGraphVizOutputfile = @"/tmp/vChewing-visualization.dot";
                 }
             }
             else
-            {
                 stateCallback(choosingCandidates);
-            }
         }
 
         // and tells the client that the key is consumed
@@ -558,82 +505,54 @@ static NSString *const kGraphVizOutputfile = @"/tmp/vChewing-visualization.dot";
 
     // MARK: Esc
     if ([input isESC])
-    {
         return [self _handleEscWithState:state stateCallback:stateCallback errorCallback:errorCallback];
-    }
 
     // MARK: Cursor backward
     if ([input isCursorBackward] || emacsKey == vChewingEmacsKeyBackward)
-    {
         return [self _handleBackwardWithState:state
                                         input:input
                                 stateCallback:stateCallback
                                 errorCallback:errorCallback];
-    }
 
     // MARK:  Cursor forward
     if ([input isCursorForward] || emacsKey == vChewingEmacsKeyForward)
-    {
         return [self _handleForwardWithState:state input:input stateCallback:stateCallback errorCallback:errorCallback];
-    }
 
     // MARK: Home
     if ([input isHome] || emacsKey == vChewingEmacsKeyHome)
-    {
         return [self _handleHomeWithState:state stateCallback:stateCallback errorCallback:errorCallback];
-    }
 
     // MARK: End
     if ([input isEnd] || emacsKey == vChewingEmacsKeyEnd)
-    {
         return [self _handleEndWithState:state stateCallback:stateCallback errorCallback:errorCallback];
-    }
 
     // MARK: Ctrl+PgLf or Shift+PgLf
-    if ([input isControlHold] || [input isShiftHold])
+    if (([input isControlHold] || [input isShiftHold]) && ([input isOptionHold] && [input isLeft]))
-    {
+        return [self _handleHomeWithState:state stateCallback:stateCallback errorCallback:errorCallback];
-        if ([input isOptionHold] && [input isLeft])
-        {
-            return [self _handleHomeWithState:state stateCallback:stateCallback errorCallback:errorCallback];
-        }
-    }
 
     // MARK: Ctrl+PgRt or Shift+PgRt
-    if ([input isControlHold] || [input isShiftHold])
+    if (([input isControlHold] || [input isShiftHold]) && ([input isOptionHold] && [input isRight]))
-    {
+        return [self _handleEndWithState:state stateCallback:stateCallback errorCallback:errorCallback];
-        if ([input isOptionHold] && [input isRight])
-        {
-            return [self _handleEndWithState:state stateCallback:stateCallback errorCallback:errorCallback];
-        }
-    }
 
     // MARK: AbsorbedArrowKey
     if ([input isAbsorbedArrowKey] || [input isExtraChooseCandidateKey] || [input isExtraChooseCandidateKeyReverse])
-    {
         return [self _handleAbsorbedArrowKeyWithState:state stateCallback:stateCallback errorCallback:errorCallback];
-    }
 
     // MARK: Backspace
     if ([input isBackSpace])
-    {
         return [self _handleBackspaceWithState:state stateCallback:stateCallback errorCallback:errorCallback];
-    }
 
     // MARK: Delete
     if ([input isDelete] || emacsKey == vChewingEmacsKeyDelete)
-    {
         return [self _handleDeleteWithState:state stateCallback:stateCallback errorCallback:errorCallback];
-    }
 
     // MARK: Enter
     if ([input isEnter])
-    {
         return ([input isControlHold] && [input isCommandHold])
                    ? [self _handleCtrlCommandEnterWithState:state
                                               stateCallback:stateCallback
                                               errorCallback:errorCallback]
                    : [self _handleEnterWithState:state stateCallback:stateCallback errorCallback:errorCallback];
-    }
 
     // MARK: Punctuation list
     if ([input isSymbolMenuPhysicalKey] && ![input isShiftHold])
@@ -679,32 +598,24 @@ static NSString *const kGraphVizOutputfile = @"/tmp/vChewing-visualization.dot";
     // if nothing is matched, see if it's a punctuation key for current layout.
 
     std::string punctuationNamePrefix;
+
     if ([input isOptionHold])
-    {
         punctuationNamePrefix = std::string("_alt_punctuation_");
-    }
     else if ([input isControlHold])
-    {
         punctuationNamePrefix = std::string("_ctrl_punctuation_");
-    }
     else if (mgrPrefs.halfWidthPunctuationEnabled)
-    {
         punctuationNamePrefix = std::string("_half_punctuation_");
-    }
     else
-    {
         punctuationNamePrefix = std::string("_punctuation_");
-    }
+
-    std::string layout = [self _currentLayout];
+    std::string parser = [self _currentMandarinParser];
-    std::string customPunctuation = punctuationNamePrefix + layout + std::string(1, (char)charCode);
+    std::string customPunctuation = punctuationNamePrefix + parser + std::string(1, (char)charCode);
     if ([self _handlePunctuation:customPunctuation
                            state:state
                usingVerticalMode:input.useVerticalMode
                    stateCallback:stateCallback
                    errorCallback:errorCallback])
-    {
         return YES;
-    }
 
     // if nothing is matched, see if it's a punctuation key.
     std::string punctuation = punctuationNamePrefix + std::string(1, (char)charCode);
@@ -713,9 +624,7 @@ static NSString *const kGraphVizOutputfile = @"/tmp/vChewing-visualization.dot";
                usingVerticalMode:input.useVerticalMode
                    stateCallback:stateCallback
                    errorCallback:errorCallback])
-    {
         return YES;
-    }
 
     // Lukhnos 這裡的處理反而會使得 Apple 倚天注音動態鍵盤佈局「敲不了半形大寫英文」的缺點曝露無疑，所以注釋掉。
     // 至於他試圖用這種處理來解決的上游 UPR293
@@ -728,9 +637,7 @@ static NSString *const kGraphVizOutputfile = @"/tmp/vChewing-visualization.dot";
                    usingVerticalMode:input.useVerticalMode
                        stateCallback:stateCallback
                        errorCallback:errorCallback])
-        {
             return YES;
-        }
     }
 
     // still nothing, then we update the composing buffer (some app has strange behavior if we don't do this, "thinking"
@@ -754,9 +661,7 @@ static NSString *const kGraphVizOutputfile = @"/tmp/vChewing-visualization.dot";
               errorCallback:(void (^)(void))errorCallback
 {
     if (![state isKindOfClass:[InputStateInputting class]])
-    {
         return NO;
-    }
 
     BOOL escToClearInputBufferEnabled = mgrPrefs.escToCleanInputBuffer;
 
@@ -800,9 +705,7 @@ static NSString *const kGraphVizOutputfile = @"/tmp/vChewing-visualization.dot";
                    errorCallback:(void (^)(void))errorCallback
 {
     if (![state isKindOfClass:[InputStateInputting class]])
-    {
         return NO;
-    }
 
     if (!_bpmfReadingBuffer->isEmpty())
     {
@@ -859,9 +762,7 @@ static NSString *const kGraphVizOutputfile = @"/tmp/vChewing-visualization.dot";
                   errorCallback:(void (^)(void))errorCallback
 {
     if (![state isKindOfClass:[InputStateInputting class]])
-    {
         return NO;
-    }
 
     if (!_bpmfReadingBuffer->isEmpty())
     {
@@ -917,9 +818,7 @@ static NSString *const kGraphVizOutputfile = @"/tmp/vChewing-visualization.dot";
                errorCallback:(void (^)(void))errorCallback
 {
     if (![state isKindOfClass:[InputStateInputting class]])
-    {
         return NO;
-    }
 
     if (!_bpmfReadingBuffer->isEmpty())
     {
@@ -950,9 +849,7 @@ static NSString *const kGraphVizOutputfile = @"/tmp/vChewing-visualization.dot";
               errorCallback:(void (^)(void))errorCallback
 {
     if (![state isKindOfClass:[InputStateInputting class]])
-    {
         return NO;
-    }
 
     if (!_bpmfReadingBuffer->isEmpty())
     {
@@ -983,9 +880,7 @@ static NSString *const kGraphVizOutputfile = @"/tmp/vChewing-visualization.dot";
                            errorCallback:(void (^)(void))errorCallback
 {
     if (![state isKindOfClass:[InputStateInputting class]])
-    {
         return NO;
-    }
 
     if (!_bpmfReadingBuffer->isEmpty())
     {
@@ -1001,9 +896,7 @@ static NSString *const kGraphVizOutputfile = @"/tmp/vChewing-visualization.dot";
                     errorCallback:(void (^)(void))errorCallback
 {
     if (![state isKindOfClass:[InputStateInputting class]])
-    {
         return NO;
-    }
 
     if (_bpmfReadingBuffer->isEmpty())
     {
@@ -1021,9 +914,7 @@ static NSString *const kGraphVizOutputfile = @"/tmp/vChewing-visualization.dot";
         }
     }
     else
-    {
         _bpmfReadingBuffer->backspace();
-    }
 
     if (_bpmfReadingBuffer->isEmpty() && !_builder->length())
     {
@@ -1043,9 +934,7 @@ static NSString *const kGraphVizOutputfile = @"/tmp/vChewing-visualization.dot";
                  errorCallback:(void (^)(void))errorCallback
 {
     if (![state isKindOfClass:[InputStateInputting class]])
-    {
         return NO;
-    }
 
     if (_bpmfReadingBuffer->isEmpty())
     {
@@ -1106,9 +995,7 @@ static NSString *const kGraphVizOutputfile = @"/tmp/vChewing-visualization.dot";
                 errorCallback:(void (^)(void))errorCallback
 {
     if (![state isKindOfClass:[InputStateInputting class]])
-    {
         return NO;
-    }
 
     [self clear];
 
@@ -1128,9 +1015,7 @@ static NSString *const kGraphVizOutputfile = @"/tmp/vChewing-visualization.dot";
              errorCallback:(void (^)(void))errorCallback
 {
     if (!_languageModel->hasUnigramsForKey(customPunctuation))
-    {
         return NO;
-    }
 
     NSString *poppedText;
     if (_bpmfReadingBuffer->isEmpty())
@@ -1165,9 +1050,7 @@ static NSString *const kGraphVizOutputfile = @"/tmp/vChewing-visualization.dot";
             stateCallback(empty);
         }
         else
-        {
             stateCallback(candidateState);
-        }
     }
     return YES;
 }
@@ -1218,9 +1101,7 @@ static NSString *const kGraphVizOutputfile = @"/tmp/vChewing-visualization.dot";
                 stateCallback(inputting);
             }
             else
-            {
                 stateCallback(marking);
-            }
         }
         else
         {
@@ -1249,9 +1130,7 @@ static NSString *const kGraphVizOutputfile = @"/tmp/vChewing-visualization.dot";
                 stateCallback(inputting);
             }
             else
-            {
                 stateCallback(marking);
-            }
         }
         else
         {
@@ -1324,7 +1203,7 @@ static NSString *const kGraphVizOutputfile = @"/tmp/vChewing-visualization.dot";
     if ([input isTab])
     {
         BOOL updated =
-            mgrPrefs.specifyTabKeyBehavior
+            mgrPrefs.specifyShiftTabKeyBehavior
                 ? ([input isShiftHold] ? [ctlCandidateCurrent showPreviousPage] : [ctlCandidateCurrent showNextPage])
                 : ([input isShiftHold] ? [ctlCandidateCurrent highlightPreviousCandidate]
                                        : [ctlCandidateCurrent highlightNextCandidate]);
@@ -1338,7 +1217,7 @@ static NSString *const kGraphVizOutputfile = @"/tmp/vChewing-visualization.dot";
 
     if ([input isSpace])
     {
-        BOOL updated = mgrPrefs.specifySpaceKeyBehavior
+        BOOL updated = mgrPrefs.specifyShiftSpaceKeyBehavior
                            ? ([input isShiftHold] ? [ctlCandidateCurrent highlightNextCandidate]
                                                   : [ctlCandidateCurrent showNextPage])
                            : ([input isShiftHold] ? [ctlCandidateCurrent showNextPage]
@@ -1495,9 +1374,7 @@ static NSString *const kGraphVizOutputfile = @"/tmp/vChewing-visualization.dot";
             errorCallback();
         }
         else
-        {
             ctlCandidateCurrent.selectedCandidateIndex = 0;
-        }
 
         return YES;
     }
@@ -1505,18 +1382,12 @@ static NSString *const kGraphVizOutputfile = @"/tmp/vChewing-visualization.dot";
     NSArray *candidates;
 
     if ([state isKindOfClass:[InputStateChoosingCandidate class]])
-    {
         candidates = [(InputStateChoosingCandidate *)state candidates];
-    }
     else if ([state isKindOfClass:[InputStateAssociatedPhrases class]])
-    {
         candidates = [(InputStateAssociatedPhrases *)state candidates];
-    }
 
     if (!candidates)
-    {
         return NO;
-    }
 
     if (([input isEnd] || input.emacsKey == vChewingEmacsKeyEnd) && candidates.count > 0)
     {
@@ -1526,30 +1397,23 @@ static NSString *const kGraphVizOutputfile = @"/tmp/vChewing-visualization.dot";
             errorCallback();
         }
         else
-        {
             ctlCandidateCurrent.selectedCandidateIndex = candidates.count - 1;
-        }
+
         return YES;
     }
 
     if ([state isKindOfClass:[InputStateAssociatedPhrases class]])
     {
         if (![input isShiftHold])
-        {
             return NO;
-        }
     }
 
     NSInteger index = NSNotFound;
     NSString *match;
     if ([state isKindOfClass:[InputStateAssociatedPhrases class]])
-    {
         match = input.inputTextIgnoringModifiers;
-    }
     else
-    {
         match = inputText;
-    }
 
     for (NSUInteger j = 0, c = [ctlCandidateCurrent.keyLabels count]; j < c; j++)
     {
@@ -1572,31 +1436,22 @@ static NSString *const kGraphVizOutputfile = @"/tmp/vChewing-visualization.dot";
     }
 
     if ([state isKindOfClass:[InputStateAssociatedPhrases class]])
-    {
         return NO;
-    }
 
     if (mgrPrefs.useSCPCTypingMode)
     {
-        std::string layout = [self _currentLayout];
         std::string punctuationNamePrefix;
         if ([input isOptionHold])
-        {
             punctuationNamePrefix = std::string("_alt_punctuation_");
-        }
         else if ([input isControlHold])
-        {
             punctuationNamePrefix = std::string("_ctrl_punctuation_");
-        }
         else if (mgrPrefs.halfWidthPunctuationEnabled)
-        {
             punctuationNamePrefix = std::string("_half_punctuation_");
-        }
         else
-        {
             punctuationNamePrefix = std::string("_punctuation_");
-        }
+
-        std::string customPunctuation = punctuationNamePrefix + layout + std::string(1, (char)charCode);
+        std::string parser = [self _currentMandarinParser];
+        std::string customPunctuation = punctuationNamePrefix + parser + std::string(1, (char)charCode);
         std::string punctuation = punctuationNamePrefix + std::string(1, (char)charCode);
 
         BOOL shouldAutoSelectCandidate = _bpmfReadingBuffer->isValidKey((char)charCode) ||
@@ -1607,9 +1462,7 @@ static NSString *const kGraphVizOutputfile = @"/tmp/vChewing-visualization.dot";
         {
             std::string letter = std::string("_letter_") + std::string(1, (char)charCode);
             if (_languageModel->hasUnigramsForKey(letter))
-            {
                 shouldAutoSelectCandidate = YES;
-            }
         }
 
         if (shouldAutoSelectCandidate)
@@ -1746,7 +1599,7 @@ static NSString *const kGraphVizOutputfile = @"/tmp/vChewing-visualization.dot";
 - (void)_walk
 {
     // retrieve the most likely trellis, i.e. a Maximum Likelihood Estimation
-    // of the best possible Mandarain characters given the input syllables,
+    // of the best possible Mandarin characters given the input syllables,
     // using the Viterbi algorithm implemented in the Gramambular library
     Gramambular::Walker walker(&_builder->grid());
 
@@ -1813,9 +1666,7 @@ static NSString *const kGraphVizOutputfile = @"/tmp/vChewing-visualization.dot";
         const std::vector<Gramambular::KeyValuePair> &candidates = (*ni).node->candidates();
         for (std::vector<Gramambular::KeyValuePair>::const_iterator ci = candidates.begin(), ce = candidates.end();
              ci != ce; ++ci)
-        {
             [candidatesArray addObject:[NSString stringWithUTF8String:(*ci).value.c_str()]];
-        }
     }
 
     InputStateChoosingCandidate *state =
@@ -1831,9 +1682,7 @@ static NSString *const kGraphVizOutputfile = @"/tmp/vChewing-visualization.dot";
     size_t cursorIndex = _builder->cursorIndex();
     // MS Phonetics IME style, phrase is *after* the cursor, i.e. cursor is always *before* the phrase
     if ((mgrPrefs.selectPhraseAfterCursorAsCandidate && (cursorIndex < _builder->length())) || !cursorIndex)
-    {
         ++cursorIndex;
-    }
 
     return cursorIndex;
 }
@@ -1843,9 +1692,7 @@ static NSString *const kGraphVizOutputfile = @"/tmp/vChewing-visualization.dot";
     NSMutableArray *readingsArray = [[NSMutableArray alloc] init];
     std::vector<std::string> v = _builder->readings();
     for (std::vector<std::string>::iterator it_i = v.begin(); it_i != v.end(); ++it_i)
-    {
         [readingsArray addObject:[NSString stringWithUTF8String:it_i->c_str()]];
-    }
     return readingsArray;
 }
 

Source/Modules/FileHandlers/FSEventStreamHelper.swift

@@ -47,7 +47,7 @@ public class FSEventStreamHelper: NSObject {
 		self.dispatchQueue = queue
 	}
 
-	private var stream: FSEventStreamRef? = nil
+	private var stream: FSEventStreamRef?
 
 	public func start() -> Bool {
 		if stream != nil {
@@ -59,7 +59,7 @@ public class FSEventStreamHelper: NSObject {
 			let stream = FSEventStreamCreate(
 				nil,
 				{
-					(stream, clientCallBackInfo, eventCount, eventPaths, eventFlags, eventIds) in
+					(_, clientCallBackInfo, eventCount, eventPaths, eventFlags, eventIds) in
 					let helper = Unmanaged<FSEventStreamHelper>.fromOpaque(clientCallBackInfo!)
 						.takeUnretainedValue()
 					let pathsBase = eventPaths.assumingMemoryBound(to: UnsafePointer<CChar>.self)

Source/Modules/IMEModules/IME.swift

@@ -22,10 +22,11 @@ IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
 
+import Carbon
 import Cocoa
 
 @objc public class IME: NSObject {
-
+	static let arrSupportedLocales = ["en", "zh-Hant", "zh-Hans", "ja"]
 	static let dlgOpenPath = NSOpenPanel()
 
 	// MARK: - 開關判定當前應用究竟是？
@@ -84,7 +85,9 @@ import Cocoa
 	// MARK: - Open a phrase data file.
 	static func openPhraseFile(userFileAt path: String) {
 		func checkIfUserFilesExist() -> Bool {
-			if !mgrLangModel.checkIfUserLanguageModelFilesExist() {
+			if !mgrLangModel.chkUserLMFilesExist(InputMode.imeModeCHS)
+				|| !mgrLangModel.chkUserLMFilesExist(InputMode.imeModeCHT)
+			{
 				let content = String(
 					format: NSLocalizedString(
 						"Please check the permission at \"%@\".", comment: ""),
@@ -224,4 +227,120 @@ import Cocoa
 		return 0
 	}
 
+	// MARK: - 準備枚舉系統內所有的 ASCII 鍵盤佈局
+	struct CarbonKeyboardLayout {
+		var strName: String = ""
+		var strValue: String = ""
+	}
+	static let arrWhitelistedKeyLayoutsASCII: [String] = [
+		"com.apple.keylayout.ABC",
+		"com.apple.keylayout.ABC-AZERTY",
+		"com.apple.keylayout.ABC-QWERTZ",
+		"com.apple.keylayout.British",
+		"com.apple.keylayout.Colemak",
+		"com.apple.keylayout.Dvorak",
+		"com.apple.keylayout.Dvorak-Left",
+		"com.apple.keylayout.DVORAK-QWERTYCMD",
+		"com.apple.keylayout.Dvorak-Right",
+	]
+	static var arrEnumerateSystemKeyboardLayouts: [IME.CarbonKeyboardLayout] {
+		// 提前塞入 macOS 內建的兩款動態鍵盤佈局
+		var arrKeyLayouts: [IME.CarbonKeyboardLayout] = []
+		arrKeyLayouts += [
+			IME.CarbonKeyboardLayout.init(
+				strName: NSLocalizedString("Apple Chewing - Dachen", comment: ""),
+				strValue: "com.apple.keylayout.ZhuyinBopomofo"),
+			IME.CarbonKeyboardLayout.init(
+				strName: NSLocalizedString("Apple Chewing - Eten Traditional", comment: ""),
+				strValue: "com.apple.keylayout.ZhuyinEten"),
+		]
+
+		// 準備枚舉系統內所有的 ASCII 鍵盤佈局
+		var arrKeyLayoutsMACV: [IME.CarbonKeyboardLayout] = []
+		var arrKeyLayoutsASCII: [IME.CarbonKeyboardLayout] = []
+		let list = TISCreateInputSourceList(nil, true).takeRetainedValue() as! [TISInputSource]
+		for source in list {
+			if let ptrCategory = TISGetInputSourceProperty(source, kTISPropertyInputSourceCategory) {
+				let category = Unmanaged<CFString>.fromOpaque(ptrCategory).takeUnretainedValue()
+				if category != kTISCategoryKeyboardInputSource {
+					continue
+				}
+			} else {
+				continue
+			}
+
+			if let ptrASCIICapable = TISGetInputSourceProperty(
+				source, kTISPropertyInputSourceIsASCIICapable)
+			{
+				let asciiCapable = Unmanaged<CFBoolean>.fromOpaque(ptrASCIICapable)
+					.takeUnretainedValue()
+				if asciiCapable != kCFBooleanTrue {
+					continue
+				}
+			} else {
+				continue
+			}
+
+			if let ptrSourceType = TISGetInputSourceProperty(source, kTISPropertyInputSourceType) {
+				let sourceType = Unmanaged<CFString>.fromOpaque(ptrSourceType).takeUnretainedValue()
+				if sourceType != kTISTypeKeyboardLayout {
+					continue
+				}
+			} else {
+				continue
+			}
+
+			guard let ptrSourceID = TISGetInputSourceProperty(source, kTISPropertyInputSourceID),
+				let localizedNamePtr = TISGetInputSourceProperty(source, kTISPropertyLocalizedName)
+			else {
+				continue
+			}
+
+			let sourceID = String(Unmanaged<CFString>.fromOpaque(ptrSourceID).takeUnretainedValue())
+			let localizedName = String(
+				Unmanaged<CFString>.fromOpaque(localizedNamePtr).takeUnretainedValue())
+
+			if sourceID.contains("vChewing") {
+				arrKeyLayoutsMACV += [
+					IME.CarbonKeyboardLayout.init(strName: localizedName, strValue: sourceID)
+				]
+			}
+
+			if IME.arrWhitelistedKeyLayoutsASCII.contains(sourceID) {
+				arrKeyLayoutsASCII += [
+					IME.CarbonKeyboardLayout.init(strName: localizedName, strValue: sourceID)
+				]
+			}
+		}
+		arrKeyLayouts += arrKeyLayoutsMACV
+		arrKeyLayouts += arrKeyLayoutsASCII
+		return arrKeyLayouts
+	}
+
+}
+
+// MARK: - Root Extensions
+
+// Extend the RangeReplaceableCollection to allow it clean duplicated characters.
+// Ref: https://stackoverflow.com/questions/25738817/
+extension RangeReplaceableCollection where Element: Hashable {
+	var charDeDuplicate: Self {
+		var set = Set<Element>()
+		return filter { set.insert($0).inserted }
+	}
+}
+
+// MARK: - Error Extension
+extension String: Error {}
+extension String: LocalizedError {
+	public var errorDescription: String? { return self }
+}
+
+// MARK: - Ensuring trailing slash of a string:
+extension String {
+	mutating func ensureTrailingSlash() {
+		if !self.hasSuffix("/") {
+			self += "/"
+		}
+	}
 }

Source/Modules/IMEModules/apiUpdate.swift

@@ -0,0 +1,175 @@
+// Copyright (c) 2011 and onwards The OpenVanilla Project (MIT License).
+// All possible vChewing-specific modifications are of:
+// (c) 2021 and onwards The vChewing Project (MIT-NTL License).
+/*
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+1. The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+2. No trademark license is granted to use the trade names, trademarks, service
+marks, or product names of Contributor, except as required to fulfill notice
+requirements above.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+
+import Cocoa
+
+struct VersionUpdateReport {
+	var siteUrl: URL?
+	var currentShortVersion: String = ""
+	var currentVersion: String = ""
+	var remoteShortVersion: String = ""
+	var remoteVersion: String = ""
+	var versionDescription: String = ""
+}
+
+enum VersionUpdateApiResult {
+	case shouldUpdate(report: VersionUpdateReport)
+	case noNeedToUpdate
+	case ignored
+}
+
+enum VersionUpdateApiError: Error, LocalizedError {
+	case connectionError(message: String)
+
+	var errorDescription: String? {
+		switch self {
+			case .connectionError(let message):
+				return String(
+					format: NSLocalizedString(
+						"There may be no internet connection or the server failed to respond.\n\nError message: %@",
+						comment: ""), message)
+		}
+	}
+}
+
+struct VersionUpdateApi {
+	static let kCheckUpdateAutomatically = "CheckUpdateAutomatically"
+	static let kNextUpdateCheckDateKey = "NextUpdateCheckDate"
+	static let kUpdateInfoEndpointKey = "UpdateInfoEndpoint"
+	static let kUpdateInfoSiteKey = "UpdateInfoSite"
+	static let kVersionDescription = "VersionDescription"
+	static let kNextCheckInterval: TimeInterval = 86400.0
+	static let kTimeoutInterval: TimeInterval = 60.0
+	static func check(
+		forced: Bool, callback: @escaping (Result<VersionUpdateApiResult, Error>) -> Void
+	) -> URLSessionTask? {
+		guard let infoDict = Bundle.main.infoDictionary,
+			let updateInfoURLString = infoDict[kUpdateInfoEndpointKey] as? String,
+			let updateInfoURL = URL(string: updateInfoURLString)
+		else {
+			return nil
+		}
+
+		let request = URLRequest(
+			url: updateInfoURL, cachePolicy: .reloadIgnoringLocalCacheData,
+			timeoutInterval: kTimeoutInterval)
+		let task = URLSession.shared.dataTask(with: request) { data, _, error in
+			if let error = error {
+				DispatchQueue.main.async {
+					forced
+						? callback(
+							.failure(
+								VersionUpdateApiError.connectionError(
+									message: error.localizedDescription)))
+						: callback(.success(.ignored))
+				}
+				return
+			}
+
+			do {
+				guard
+					let plist = try PropertyListSerialization.propertyList(
+						from: data ?? Data(), options: [], format: nil) as? [AnyHashable: Any],
+					let remoteVersion = plist[kCFBundleVersionKey] as? String,
+					let infoDict = Bundle.main.infoDictionary
+				else {
+					DispatchQueue.main.async {
+						forced
+							? callback(.success(.noNeedToUpdate))
+							: callback(.success(.ignored))
+					}
+					return
+				}
+
+				// TODO: Validate info (e.g. bundle identifier)
+				// TODO: Use HTML to display change log, need a new key like UpdateInfoChangeLogURL for this
+
+				let currentVersion = infoDict[kCFBundleVersionKey as String] as? String ?? ""
+				let result = currentVersion.compare(
+					remoteVersion, options: .numeric, range: nil, locale: nil)
+
+				if result != .orderedAscending {
+					DispatchQueue.main.async {
+						forced
+							? callback(.success(.noNeedToUpdate))
+							: callback(.success(.ignored))
+					}
+					IME.prtDebugIntel(
+						"vChewingDebug: Update // Order is not Ascending, assuming that there's no new version available."
+					)
+					return
+				}
+				IME.prtDebugIntel(
+					"vChewingDebug: Update // New version detected, proceeding to the next phase.")
+				guard let siteInfoURLString = plist[kUpdateInfoSiteKey] as? String,
+					let siteInfoURL = URL(string: siteInfoURLString)
+				else {
+					DispatchQueue.main.async {
+						forced
+							? callback(.success(.noNeedToUpdate))
+							: callback(.success(.ignored))
+					}
+					IME.prtDebugIntel(
+						"vChewingDebug: Update // Failed from retrieving / parsing URL intel.")
+					return
+				}
+				IME.prtDebugIntel(
+					"vChewingDebug: Update // URL intel retrieved, proceeding to the next phase.")
+				var report = VersionUpdateReport(siteUrl: siteInfoURL)
+				var versionDescription = ""
+				let versionDescriptions = plist[kVersionDescription] as? [AnyHashable: Any]
+				if let versionDescriptions = versionDescriptions {
+					var locale = "en"
+					let preferredTags = Bundle.preferredLocalizations(from: IME.arrSupportedLocales)
+					if let first = preferredTags.first {
+						locale = first
+					}
+					versionDescription =
+						versionDescriptions[locale] as? String ?? versionDescriptions["en"]
+						as? String ?? ""
+					if !versionDescription.isEmpty {
+						versionDescription = "\n\n" + versionDescription
+					}
+				}
+				report.currentShortVersion = infoDict["CFBundleShortVersionString"] as? String ?? ""
+				report.currentVersion = currentVersion
+				report.remoteShortVersion = plist["CFBundleShortVersionString"] as? String ?? ""
+				report.remoteVersion = remoteVersion
+				report.versionDescription = versionDescription
+				DispatchQueue.main.async {
+					callback(.success(.shouldUpdate(report: report)))
+				}
+				IME.prtDebugIntel("vChewingDebug: Update // Callbck Complete.")
+			} catch {
+				DispatchQueue.main.async {
+					forced ? callback(.success(.noNeedToUpdate)) : callback(.success(.ignored))
+				}
+			}
+		}
+		task.resume()
+		return task
+	}
+}

Source/Modules/IMEModules/ctlInputMethod.swift

@@ -49,7 +49,7 @@ class ctlInputMethod: IMKInputController {
 
 	// MARK: -
 
-	private var currentCandidateClient: Any?
+	private var currentClient: Any?
 
 	private var keyHandler: KeyHandler = KeyHandler()
 	private var state: InputState = InputState.Empty()
@@ -65,8 +65,9 @@ class ctlInputMethod: IMKInputController {
 	// MARK: - Keyboard Layout Specifier
 
 	@objc func setKeyLayout() {
-		let client = client().self as IMKTextInput
+		if let client = currentClient {
-		client.overrideKeyboard(withKeyboardNamed: mgrPrefs.basisKeyboardLayout)
+			(client as? IMKTextInput)?.overrideKeyboard(withKeyboardNamed: mgrPrefs.basicKeyboardLayout)
+		}
 	}
 
 	// MARK: - IMKInputController methods
@@ -76,24 +77,38 @@ class ctlInputMethod: IMKInputController {
 		keyHandler.delegate = self
 	}
 
+	// MARK: - KeyHandler Reset Command
+
+	func resetKeyHandler() {
+		if let currentClient = currentClient {
+			keyHandler.clear()
+			self.handle(state: InputState.Empty(), client: currentClient)
+		}
+	}
+
 	// MARK: - IMKStateSetting protocol methods
 
 	override func activateServer(_ client: Any!) {
 		UserDefaults.standard.synchronize()
 
-		// Override the keyboard layout to the basic one.
-		setKeyLayout()
 		// reset the state
-		currentCandidateClient = nil
+		currentClient = client
 
 		keyHandler.clear()
 		keyHandler.syncWithPreferences()
-		self.handle(state: .Empty(), client: client)
+		if let bundleCheckID = (client as? IMKTextInput)?.bundleIdentifier() {
+			if bundleCheckID != Bundle.main.bundleIdentifier {
+				// Override the keyboard layout to the basic one.
+				setKeyLayout()
+				self.handle(state: .Empty(), client: client)
+			}
+		}
 		(NSApp.delegate as? AppDelegate)?.checkForUpdate()
 	}
 
 	override func deactivateServer(_ client: Any!) {
 		keyHandler.clear()
+		currentClient = nil
 		self.handle(state: .Empty(), client: client)
 		self.handle(state: .Deactivated(), client: client)
 	}
@@ -110,14 +125,18 @@ class ctlInputMethod: IMKInputController {
 		}
 		mgrLangModel.loadDataModel(newInputMode)
 
-		// Remember to override the keyboard layout again -- treat this as an activate event.
-		setKeyLayout()
-
 		if keyHandler.inputMode != newInputMode {
+
 			UserDefaults.standard.synchronize()
 			keyHandler.clear()
 			keyHandler.inputMode = newInputMode
-			self.handle(state: .Empty(), client: client)
+			if let bundleCheckID = (client as? IMKTextInput)?.bundleIdentifier() {
+				if bundleCheckID != Bundle.main.bundleIdentifier {
+					// Remember to override the keyboard layout again -- treat this as an activate event.
+					setKeyLayout()
+					self.handle(state: .Empty(), client: client)
+				}
+			}
 		}
 
 		// 讓外界知道目前的簡繁體輸入模式。
@@ -225,7 +244,7 @@ extension ctlInputMethod {
 	}
 
 	private func handle(state: InputState.Deactivated, previous: InputState, client: Any?) {
-		currentCandidateClient = nil
+		currentClient = nil
 
 		ctlCandidateCurrent?.delegate = nil
 		ctlCandidateCurrent?.visible = false
@@ -235,8 +254,8 @@ extension ctlInputMethod {
 			commit(text: previous.composingBuffer, client: client)
 		}
 		(client as? IMKTextInput)?.setMarkedText(
-			"", selectionRange: NSMakeRange(0, 0),
+			"", selectionRange: NSRange(location: 0, length: 0),
-			replacementRange: NSMakeRange(NSNotFound, NSNotFound))
+			replacementRange: NSRange(location: NSNotFound, length: NSNotFound))
 	}
 
 	private func handle(state: InputState.Empty, previous: InputState, client: Any?) {
@@ -251,8 +270,8 @@ extension ctlInputMethod {
 			commit(text: previous.composingBuffer, client: client)
 		}
 		client.setMarkedText(
-			"", selectionRange: NSMakeRange(0, 0),
+			"", selectionRange: NSRange(location: 0, length: 0),
-			replacementRange: NSMakeRange(NSNotFound, NSNotFound))
+			replacementRange: NSRange(location: NSNotFound, length: NSNotFound))
 	}
 
 	private func handle(
@@ -266,8 +285,8 @@ extension ctlInputMethod {
 		}
 
 		client.setMarkedText(
-			"", selectionRange: NSMakeRange(0, 0),
+			"", selectionRange: NSRange(location: 0, length: 0),
-			replacementRange: NSMakeRange(NSNotFound, NSNotFound))
+			replacementRange: NSRange(location: NSNotFound, length: NSNotFound))
 	}
 
 	private func handle(state: InputState.Committing, previous: InputState, client: Any?) {
@@ -283,8 +302,8 @@ extension ctlInputMethod {
 			commit(text: poppedText, client: client)
 		}
 		client.setMarkedText(
-			"", selectionRange: NSMakeRange(0, 0),
+			"", selectionRange: NSRange(location: 0, length: 0),
-			replacementRange: NSMakeRange(NSNotFound, NSNotFound))
+			replacementRange: NSRange(location: NSNotFound, length: NSNotFound))
 	}
 
 	private func handle(state: InputState.Inputting, previous: InputState, client: Any?) {
@@ -303,8 +322,8 @@ extension ctlInputMethod {
 		// the selection range is where the cursor is, with the length being 0 and replacement range NSNotFound,
 		// i.e. the client app needs to take care of where to put this composing buffer
 		client.setMarkedText(
-			state.attributedString, selectionRange: NSMakeRange(Int(state.cursorIndex), 0),
+			state.attributedString, selectionRange: NSRange(location: Int(state.cursorIndex), length: 0),
-			replacementRange: NSMakeRange(NSNotFound, NSNotFound))
+			replacementRange: NSRange(location: NSNotFound, length: NSNotFound))
 		if !state.tooltip.isEmpty {
 			show(
 				tooltip: state.tooltip, composingBuffer: state.composingBuffer,
@@ -322,8 +341,8 @@ extension ctlInputMethod {
 		// the selection range is where the cursor is, with the length being 0 and replacement range NSNotFound,
 		// i.e. the client app needs to take care of where to put this composing buffer
 		client.setMarkedText(
-			state.attributedString, selectionRange: NSMakeRange(Int(state.cursorIndex), 0),
+			state.attributedString, selectionRange: NSRange(location: Int(state.cursorIndex), length: 0),
-			replacementRange: NSMakeRange(NSNotFound, NSNotFound))
+			replacementRange: NSRange(location: NSNotFound, length: NSNotFound))
 
 		if state.tooltip.isEmpty {
 			hideTooltip()
@@ -344,8 +363,8 @@ extension ctlInputMethod {
 		// the selection range is where the cursor is, with the length being 0 and replacement range NSNotFound,
 		// i.e. the client app needs to take care of where to put this composing buffer
 		client.setMarkedText(
-			state.attributedString, selectionRange: NSMakeRange(Int(state.cursorIndex), 0),
+			state.attributedString, selectionRange: NSRange(location: Int(state.cursorIndex), length: 0),
-			replacementRange: NSMakeRange(NSNotFound, NSNotFound))
+			replacementRange: NSRange(location: NSNotFound, length: NSNotFound))
 		show(candidateWindowWith: state, client: client)
 	}
 
@@ -356,8 +375,8 @@ extension ctlInputMethod {
 			return
 		}
 		client.setMarkedText(
-			"", selectionRange: NSMakeRange(0, 0),
+			"", selectionRange: NSRange(location: 0, length: 0),
-			replacementRange: NSMakeRange(NSNotFound, NSNotFound))
+			replacementRange: NSRange(location: NSNotFound, length: NSNotFound))
 		show(candidateWindowWith: state, client: client)
 	}
 }
@@ -441,11 +460,11 @@ extension ctlInputMethod {
 
 		ctlCandidateCurrent?.delegate = self
 		ctlCandidateCurrent?.reloadData()
-		currentCandidateClient = client
+		currentClient = client
 
 		ctlCandidateCurrent?.visible = true
 
-		var lineHeightRect = NSMakeRect(0.0, 0.0, 16.0, 16.0)
+		var lineHeightRect = NSRect(x: 0.0, y: 0.0, width: 16.0, height: 16.0)
 		var cursor: Int = 0
 
 		if let state = state as? InputState.ChoosingCandidate {
@@ -463,20 +482,18 @@ extension ctlInputMethod {
 
 		if useVerticalMode {
 			ctlCandidateCurrent?.set(
-				windowTopLeftPoint: NSMakePoint(
+				windowTopLeftPoint: NSPoint(
-					lineHeightRect.origin.x + lineHeightRect.size.width + 4.0,
+					x: lineHeightRect.origin.x + lineHeightRect.size.width + 4.0, y: lineHeightRect.origin.y - 4.0),
-					lineHeightRect.origin.y - 4.0),
 				bottomOutOfScreenAdjustmentHeight: lineHeightRect.size.height + 4.0)
 		} else {
 			ctlCandidateCurrent?.set(
-				windowTopLeftPoint: NSMakePoint(
+				windowTopLeftPoint: NSPoint(x: lineHeightRect.origin.x, y: lineHeightRect.origin.y - 4.0),
-					lineHeightRect.origin.x, lineHeightRect.origin.y - 4.0),
 				bottomOutOfScreenAdjustmentHeight: lineHeightRect.size.height + 4.0)
 		}
 	}
 
 	private func show(tooltip: String, composingBuffer: String, cursorIndex: UInt, client: Any!) {
-		var lineHeightRect = NSMakeRect(0.0, 0.0, 16.0, 16.0)
+		var lineHeightRect = NSRect(x: 0.0, y: 0.0, width: 16.0, height: 16.0)
 		var cursor: Int = Int(cursorIndex)
 		if cursor == composingBuffer.count && cursor != 0 {
 			cursor -= 1
@@ -522,14 +539,17 @@ extension ctlInputMethod: KeyHandlerDelegate {
 		let refInputModeReversed: InputMode =
 			(keyHandler.inputMode == InputMode.imeModeCHT)
 			? InputMode.imeModeCHS : InputMode.imeModeCHT
-		mgrLangModel.writeUserPhrase(
+		if !mgrLangModel.writeUserPhrase(
 			state.userPhrase, inputMode: keyHandler.inputMode,
 			areWeDuplicating: state.chkIfUserPhraseExists,
 			areWeDeleting: ctlInputMethod.areWeDeleting)
-		mgrLangModel.writeUserPhrase(
+			|| !mgrLangModel.writeUserPhrase(
-			state.userPhraseConverted, inputMode: refInputModeReversed,
+				state.userPhraseConverted, inputMode: refInputModeReversed,
-			areWeDuplicating: false,
+				areWeDuplicating: false,
-			areWeDeleting: ctlInputMethod.areWeDeleting)
+				areWeDeleting: ctlInputMethod.areWeDeleting)
+		{
+			return false
+		}
 		return true
 	}
 }
@@ -558,7 +578,7 @@ extension ctlInputMethod: ctlCandidateDelegate {
 	}
 
 	func ctlCandidate(_ controller: ctlCandidate, didSelectCandidateAtIndex index: UInt) {
-		let client = currentCandidateClient
+		let client = currentClient
 
 		if let state = state as? InputState.SymbolTable,
 			let node = state.node.children?[Int(index)]
@@ -566,7 +586,7 @@ extension ctlInputMethod: ctlCandidateDelegate {
 			if let children = node.children, !children.isEmpty {
 				self.handle(
 					state: .SymbolTable(node: node, useVerticalMode: state.useVerticalMode),
-					client: currentCandidateClient)
+					client: currentClient)
 			} else {
 				self.handle(state: .Committing(poppedText: node.title), client: client)
 				self.handle(state: .Empty(), client: client)
@@ -603,7 +623,7 @@ extension ctlInputMethod: ctlCandidateDelegate {
 
 		if let state = state as? InputState.AssociatedPhrases {
 			let selectedValue = state.candidates[Int(index)]
-			handle(state: .Committing(poppedText: selectedValue), client: currentCandidateClient)
+			handle(state: .Committing(poppedText: selectedValue), client: currentClient)
 			if mgrPrefs.associatedPhrasesEnabled,
 				let associatePhrases = keyHandler.buildAssociatePhraseState(
 					withKey: selectedValue, useVerticalMode: state.useVerticalMode)

Source/Modules/IMEModules/ctlInputMethod_Menu.swift

@@ -123,10 +123,14 @@ extension ctlInputMethod {
 
 		menu.addItem(NSMenuItem.separator())  // ---------------------
 
-		menu.addItem(
+		if optionKeyPressed {
-			withTitle: NSLocalizedString("vChewing Preferences…", comment: ""),
+			menu.addItem(
-			action: #selector(showPreferences(_:)), keyEquivalent: "")
+				withTitle: NSLocalizedString("vChewing Preferences…", comment: ""),
-		if !optionKeyPressed {
+				action: #selector(showLegacyPreferences(_:)), keyEquivalent: "")
+		} else {
+			menu.addItem(
+				withTitle: NSLocalizedString("vChewing Preferences…", comment: ""),
+				action: #selector(showPreferences(_:)), keyEquivalent: "")
 			menu.addItem(
 				withTitle: NSLocalizedString("Check for Updates…", comment: ""),
 				action: #selector(checkForUpdate(_:)), keyEquivalent: "")
@@ -152,6 +156,20 @@ extension ctlInputMethod {
 	// MARK: - IME Menu Items
 
 	@objc override func showPreferences(_ sender: Any?) {
+		if #available(macOS 11.0, *) {
+			NSApp.setActivationPolicy(.accessory)
+			ctlPrefUI.shared.controller.show(preferencePane: Preferences.PaneIdentifier(rawValue: "General"))
+			ctlPrefUI.shared.controller.window?.level = .floating
+		} else {
+			showPrefWindowTraditional()
+		}
+	}
+
+	@objc func showLegacyPreferences(_ sender: Any?) {
+		showPrefWindowTraditional()
+	}
+
+	private func showPrefWindowTraditional() {
 		(NSApp.delegate as? AppDelegate)?.showPreferences()
 		NSApp.activate(ignoringOtherApps: true)
 	}
@@ -163,6 +181,7 @@ extension ctlInputMethod {
 				mgrPrefs.toggleSCPCTypingModeEnabled()
 					? NSLocalizedString("NotificationSwitchON", comment: "")
 					: NSLocalizedString("NotificationSwitchOFF", comment: "")))
+		resetKeyHandler()
 	}
 
 	@objc func toggleChineseConverter(_ sender: Any?) {
@@ -172,6 +191,7 @@ extension ctlInputMethod {
 				mgrPrefs.toggleChineseConversionEnabled()
 					? NSLocalizedString("NotificationSwitchON", comment: "")
 					: NSLocalizedString("NotificationSwitchOFF", comment: "")))
+		resetKeyHandler()
 	}
 
 	@objc func toggleShiftJISShinjitaiOutput(_ sender: Any?) {
@@ -181,6 +201,7 @@ extension ctlInputMethod {
 				mgrPrefs.toggleShiftJISShinjitaiOutputEnabled()
 					? NSLocalizedString("NotificationSwitchON", comment: "")
 					: NSLocalizedString("NotificationSwitchOFF", comment: "")))
+		resetKeyHandler()
 	}
 
 	@objc func toggleHalfWidthPunctuation(_ sender: Any?) {
@@ -191,6 +212,7 @@ extension ctlInputMethod {
 				mgrPrefs.toggleHalfWidthPunctuationEnabled()
 					? NSLocalizedString("NotificationSwitchON", comment: "")
 					: NSLocalizedString("NotificationSwitchOFF", comment: "")))
+		resetKeyHandler()
 	}
 
 	@objc func toggleCNS11643Enabled(_ sender: Any?) {
@@ -200,6 +222,7 @@ extension ctlInputMethod {
 				mgrPrefs.toggleCNS11643Enabled()
 					? NSLocalizedString("NotificationSwitchON", comment: "")
 					: NSLocalizedString("NotificationSwitchOFF", comment: "")))
+		resetKeyHandler()
 	}
 
 	@objc func toggleSymbolEnabled(_ sender: Any?) {
@@ -209,6 +232,7 @@ extension ctlInputMethod {
 				mgrPrefs.toggleSymbolInputEnabled()
 					? NSLocalizedString("NotificationSwitchON", comment: "")
 					: NSLocalizedString("NotificationSwitchOFF", comment: "")))
+		resetKeyHandler()
 	}
 
 	@objc func toggleAssociatedPhrasesEnabled(_ sender: Any?) {
@@ -219,6 +243,7 @@ extension ctlInputMethod {
 				mgrPrefs.toggleAssociatedPhrasesEnabled()
 					? NSLocalizedString("NotificationSwitchON", comment: "")
 					: NSLocalizedString("NotificationSwitchOFF", comment: "")))
+		resetKeyHandler()
 	}
 
 	@objc func togglePhraseReplacement(_ sender: Any?) {
@@ -228,6 +253,7 @@ extension ctlInputMethod {
 				mgrPrefs.togglePhraseReplacementEnabled()
 					? NSLocalizedString("NotificationSwitchON", comment: "")
 					: NSLocalizedString("NotificationSwitchOFF", comment: "")))
+		resetKeyHandler()
 	}
 
 	@objc func selfUninstall(_ sender: Any?) {

Source/Modules/IMEModules/mgrPrefs.swift

@@ -26,38 +26,40 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 import Cocoa
 
-private let kIsDebugModeEnabled = "_DebugMode"
+struct UserDef {
-private let kUserDataFolderSpecified = "UserDataFolderSpecified"
+	static let kIsDebugModeEnabled = "_DebugMode"
-private let kCheckUpdateAutomatically = "CheckUpdateAutomatically"
+	static let kUserDataFolderSpecified = "UserDataFolderSpecified"
-private let kKeyboardLayoutPreference = "KeyboardLayout"
+	static let kCheckUpdateAutomatically = "CheckUpdateAutomatically"
-private let kBasisKeyboardLayoutPreference = "BasisKeyboardLayout"
+	static let kMandarinParser = "MandarinParser"
-private let kShowPageButtonsInCandidateWindow = "ShowPageButtonsInCandidateWindow"
+	static let kBasicKeyboardLayout = "BasicKeyboardLayout"
-private let kCandidateListTextSize = "CandidateListTextSize"
+	static let kShowPageButtonsInCandidateWindow = "ShowPageButtonsInCandidateWindow"
-private let kAppleLanguagesPreferences = "AppleLanguages"
+	static let kCandidateListTextSize = "CandidateListTextSize"
-private let kShouldAutoReloadUserDataFiles = "ShouldAutoReloadUserDataFiles"
+	static let kAppleLanguages = "AppleLanguages"
-private let kSelectPhraseAfterCursorAsCandidatePreference = "SelectPhraseAfterCursorAsCandidate"
+	static let kShouldAutoReloadUserDataFiles = "ShouldAutoReloadUserDataFiles"
-private let kUseHorizontalCandidateListPreference = "UseHorizontalCandidateList"
+	static let kSelectPhraseAfterCursorAsCandidate = "SelectPhraseAfterCursorAsCandidate"
-private let kComposingBufferSizePreference = "ComposingBufferSize"
+	static let kUseHorizontalCandidateList = "UseHorizontalCandidateList"
-private let kChooseCandidateUsingSpace = "ChooseCandidateUsingSpace"
+	static let kComposingBufferSize = "ComposingBufferSize"
-private let kCNS11643Enabled = "CNS11643Enabled"
+	static let kChooseCandidateUsingSpace = "ChooseCandidateUsingSpace"
-private let kSymbolInputEnabled = "SymbolInputEnabled"
+	static let kCNS11643Enabled = "CNS11643Enabled"
-private let kChineseConversionEnabled = "ChineseConversionEnabled"
+	static let kSymbolInputEnabled = "SymbolInputEnabled"
-private let kShiftJISShinjitaiOutputEnabled = "ShiftJISShinjitaiOutputEnabled"
+	static let kChineseConversionEnabled = "ChineseConversionEnabled"
-private let kHalfWidthPunctuationEnabled = "HalfWidthPunctuationEnable"
+	static let kShiftJISShinjitaiOutputEnabled = "ShiftJISShinjitaiOutputEnabled"
-private let kMoveCursorAfterSelectingCandidate = "MoveCursorAfterSelectingCandidate"
+	static let kHalfWidthPunctuationEnabled = "HalfWidthPunctuationEnable"
-private let kEscToCleanInputBuffer = "EscToCleanInputBuffer"
+	static let kMoveCursorAfterSelectingCandidate = "MoveCursorAfterSelectingCandidate"
-private let kSpecifyTabKeyBehavior = "SpecifyTabKeyBehavior"
+	static let kEscToCleanInputBuffer = "EscToCleanInputBuffer"
-private let kSpecifySpaceKeyBehavior = "SpecifySpaceKeyBehavior"
+	static let kSpecifyShiftTabKeyBehavior = "SpecifyShiftTabKeyBehavior"
-private let kUseSCPCTypingMode = "UseSCPCTypingMode"
+	static let kSpecifyShiftSpaceKeyBehavior = "SpecifyShiftSpaceKeyBehavior"
-private let kMaxCandidateLength = "MaxCandidateLength"
+	static let kUseSCPCTypingMode = "UseSCPCTypingMode"
-private let kShouldNotFartInLieuOfBeep = "ShouldNotFartInLieuOfBeep"
+	static let kMaxCandidateLength = "MaxCandidateLength"
+	static let kShouldNotFartInLieuOfBeep = "ShouldNotFartInLieuOfBeep"
 
-private let kCandidateTextFontName = "CandidateTextFontName"
+	static let kCandidateTextFontName = "CandidateTextFontName"
-private let kCandidateKeyLabelFontName = "CandidateKeyLabelFontName"
+	static let kCandidateKeyLabelFontName = "CandidateKeyLabelFontName"
-private let kCandidateKeys = "CandidateKeys"
+	static let kCandidateKeys = "CandidateKeys"
 
-private let kAssociatedPhrasesEnabled = "AssociatedPhrasesEnabled"
+	static let kAssociatedPhrasesEnabled = "AssociatedPhrasesEnabled"
-private let kPhraseReplacementEnabled = "PhraseReplacementEnabled"
+	static let kPhraseReplacementEnabled = "PhraseReplacementEnabled"
+}
 
 private let kDefaultCandidateListTextSize: CGFloat = 18
 private let kMinKeyLabelSize: CGFloat = 10
@@ -75,7 +77,17 @@ private let kMaxComposingBufferSize = 30
 
 private let kDefaultKeys = "123456789"
 
-// MARK: Property wrappers
+// MARK: - UserDefaults extension.
+
+@objc extension UserDefaults {
+	func setDefault(_ value: Any?, forKey defaultName: String) {
+		if self.object(forKey: defaultName) == nil {
+			self.set(value, forKey: defaultName)
+		}
+	}
+}
+
+// MARK: - Property wrappers
 
 @propertyWrapper
 struct UserDefault<Value> {
@@ -155,7 +167,7 @@ struct ComposingBufferSize {
 
 // MARK: -
 
-@objc enum KeyboardLayout: Int {
+@objc enum MandarinParser: Int {
 	case ofStandard = 0
 	case ofEten = 1
 	case ofHsu = 2
@@ -191,248 +203,169 @@ struct ComposingBufferSize {
 @objc public class mgrPrefs: NSObject {
 	static var allKeys: [String] {
 		[
-			kIsDebugModeEnabled,
+			UserDef.kIsDebugModeEnabled,
-			kUserDataFolderSpecified,
+			UserDef.kUserDataFolderSpecified,
-			kKeyboardLayoutPreference,
+			UserDef.kMandarinParser,
-			kBasisKeyboardLayoutPreference,
+			UserDef.kBasicKeyboardLayout,
-			kShowPageButtonsInCandidateWindow,
+			UserDef.kShowPageButtonsInCandidateWindow,
-			kCandidateListTextSize,
+			UserDef.kCandidateListTextSize,
-			kAppleLanguagesPreferences,
+			UserDef.kAppleLanguages,
-			kShouldAutoReloadUserDataFiles,
+			UserDef.kShouldAutoReloadUserDataFiles,
-			kSelectPhraseAfterCursorAsCandidatePreference,
+			UserDef.kSelectPhraseAfterCursorAsCandidate,
-			kUseHorizontalCandidateListPreference,
+			UserDef.kUseHorizontalCandidateList,
-			kComposingBufferSizePreference,
+			UserDef.kComposingBufferSize,
-			kChooseCandidateUsingSpace,
+			UserDef.kChooseCandidateUsingSpace,
-			kCNS11643Enabled,
+			UserDef.kCNS11643Enabled,
-			kSymbolInputEnabled,
+			UserDef.kSymbolInputEnabled,
-			kChineseConversionEnabled,
+			UserDef.kChineseConversionEnabled,
-			kShiftJISShinjitaiOutputEnabled,
+			UserDef.kShiftJISShinjitaiOutputEnabled,
-			kHalfWidthPunctuationEnabled,
+			UserDef.kHalfWidthPunctuationEnabled,
-			kSpecifyTabKeyBehavior,
+			UserDef.kSpecifyShiftTabKeyBehavior,
-			kSpecifySpaceKeyBehavior,
+			UserDef.kSpecifyShiftSpaceKeyBehavior,
-			kEscToCleanInputBuffer,
+			UserDef.kEscToCleanInputBuffer,
-			kCandidateTextFontName,
+			UserDef.kCandidateTextFontName,
-			kCandidateKeyLabelFontName,
+			UserDef.kCandidateKeyLabelFontName,
-			kCandidateKeys,
+			UserDef.kCandidateKeys,
-			kMoveCursorAfterSelectingCandidate,
+			UserDef.kMoveCursorAfterSelectingCandidate,
-			kPhraseReplacementEnabled,
+			UserDef.kPhraseReplacementEnabled,
-			kUseSCPCTypingMode,
+			UserDef.kUseSCPCTypingMode,
-			kMaxCandidateLength,
+			UserDef.kMaxCandidateLength,
-			kShouldNotFartInLieuOfBeep,
+			UserDef.kShouldNotFartInLieuOfBeep,
-			kAssociatedPhrasesEnabled,
+			UserDef.kAssociatedPhrasesEnabled,
 		]
 	}
 
+	// MARK: - 既然 Preferences Module 的預設屬性不自動寫入 plist，那這邊就先寫入了。
 	@objc public static func setMissingDefaults() {
-		// 既然 Preferences Module 的預設屬性不自動寫入 plist、而且還是 private，那這邊就先寫入了。
+		UserDefaults.standard.setDefault(mgrPrefs.isDebugModeEnabled, forKey: UserDef.kIsDebugModeEnabled)
-
+		UserDefaults.standard.setDefault(mgrPrefs.checkUpdateAutomatically, forKey: UserDef.kCheckUpdateAutomatically)
-		// 首次啟用輸入法時不要啟用偵錯模式。
+		UserDefaults.standard.setDefault(
-		if UserDefaults.standard.object(forKey: kIsDebugModeEnabled) == nil {
+			mgrPrefs.showPageButtonsInCandidateWindow, forKey: UserDef.kShowPageButtonsInCandidateWindow)
-			UserDefaults.standard.set(mgrPrefs.isDebugModeEnabled, forKey: kIsDebugModeEnabled)
+		UserDefaults.standard.setDefault(mgrPrefs.symbolInputEnabled, forKey: UserDef.kSymbolInputEnabled)
-		}
+		UserDefaults.standard.setDefault(mgrPrefs.candidateListTextSize, forKey: UserDef.kCandidateListTextSize)
-
+		UserDefaults.standard.setDefault(mgrPrefs.chooseCandidateUsingSpace, forKey: UserDef.kChooseCandidateUsingSpace)
-		// 首次啟用輸入法時設定不要自動更新，免得在某些要隔絕外部網路連線的保密機構內觸犯資安規則。
+		UserDefaults.standard.setDefault(
-		if UserDefaults.standard.object(forKey: kCheckUpdateAutomatically) == nil {
+			mgrPrefs.shouldAutoReloadUserDataFiles, forKey: UserDef.kShouldAutoReloadUserDataFiles)
-			UserDefaults.standard.set(false, forKey: kCheckUpdateAutomatically)
+		UserDefaults.standard.setDefault(
-		}
+			mgrPrefs.specifyShiftTabKeyBehavior, forKey: UserDef.kSpecifyShiftTabKeyBehavior)
-
+		UserDefaults.standard.setDefault(
-		// 預設顯示選字窗翻頁按鈕
+			mgrPrefs.specifyShiftSpaceKeyBehavior, forKey: UserDef.kSpecifyShiftSpaceKeyBehavior)
-		if UserDefaults.standard.object(forKey: kShowPageButtonsInCandidateWindow) == nil {
+		UserDefaults.standard.setDefault(mgrPrefs.useSCPCTypingMode, forKey: UserDef.kUseSCPCTypingMode)
-			UserDefaults.standard.set(
+		UserDefaults.standard.setDefault(mgrPrefs.associatedPhrasesEnabled, forKey: UserDef.kAssociatedPhrasesEnabled)
-				mgrPrefs.showPageButtonsInCandidateWindow, forKey: kShowPageButtonsInCandidateWindow
+		UserDefaults.standard.setDefault(
-			)
+			mgrPrefs.selectPhraseAfterCursorAsCandidate, forKey: UserDef.kSelectPhraseAfterCursorAsCandidate)
-		}
+		UserDefaults.standard.setDefault(
-
+			mgrPrefs.moveCursorAfterSelectingCandidate, forKey: UserDef.kMoveCursorAfterSelectingCandidate)
-		// 預設啟用繪文字與符號輸入
+		UserDefaults.standard.setDefault(
-		if UserDefaults.standard.object(forKey: kSymbolInputEnabled) == nil {
+			mgrPrefs.useHorizontalCandidateList, forKey: UserDef.kUseHorizontalCandidateList)
-			UserDefaults.standard.set(mgrPrefs.symbolInputEnabled, forKey: kSymbolInputEnabled)
+		UserDefaults.standard.setDefault(mgrPrefs.cns11643Enabled, forKey: UserDef.kCNS11643Enabled)
-		}
+		UserDefaults.standard.setDefault(mgrPrefs.chineseConversionEnabled, forKey: UserDef.kChineseConversionEnabled)
-
+		UserDefaults.standard.setDefault(
-		// 預設選字窗字詞文字尺寸，設成 18 剛剛好
+			mgrPrefs.shiftJISShinjitaiOutputEnabled, forKey: UserDef.kShiftJISShinjitaiOutputEnabled)
-		if UserDefaults.standard.object(forKey: kCandidateListTextSize) == nil {
+		UserDefaults.standard.setDefault(mgrPrefs.phraseReplacementEnabled, forKey: UserDef.kPhraseReplacementEnabled)
-			UserDefaults.standard.set(
+		UserDefaults.standard.setDefault(mgrPrefs.shouldNotFartInLieuOfBeep, forKey: UserDef.kShouldNotFartInLieuOfBeep)
-				mgrPrefs.candidateListTextSize, forKey: kCandidateListTextSize)
-		}
-
-		// 預設摁空格鍵來選字，所以設成 true
-		if UserDefaults.standard.object(forKey: kChooseCandidateUsingSpace) == nil {
-			UserDefaults.standard.set(
-				mgrPrefs.chooseCandidateUsingSpace, forKey: kChooseCandidateUsingSpace)
-		}
-
-		// 自動檢測使用者自訂語彙數據的變動並載入。
-		if UserDefaults.standard.object(forKey: kShouldAutoReloadUserDataFiles) == nil {
-			UserDefaults.standard.set(
-				mgrPrefs.shouldAutoReloadUserDataFiles, forKey: kShouldAutoReloadUserDataFiles)
-		}
-
-		// 預設情況下讓 Tab 鍵在選字窗內切換候選字、而不是用來換頁。
-		if UserDefaults.standard.object(forKey: kSpecifyTabKeyBehavior) == nil {
-			UserDefaults.standard.set(
-				mgrPrefs.specifyTabKeyBehavior, forKey: kSpecifyTabKeyBehavior)
-		}
-
-		// 預設情況下讓 Space 鍵在選字窗內切換候選字、而不是用來換頁。
-		if UserDefaults.standard.object(forKey: kSpecifySpaceKeyBehavior) == nil {
-			UserDefaults.standard.set(
-				mgrPrefs.specifySpaceKeyBehavior, forKey: kSpecifySpaceKeyBehavior)
-		}
-
-		// 預設禁用逐字選字模式（就是每個字都要選的那種），所以設成 false
-		if UserDefaults.standard.object(forKey: kUseSCPCTypingMode) == nil {
-			UserDefaults.standard.set(mgrPrefs.useSCPCTypingMode, forKey: kUseSCPCTypingMode)
-		}
-
-		// 預設禁用逐字選字模式時的聯想詞功能，所以設成 false
-		if UserDefaults.standard.object(forKey: kAssociatedPhrasesEnabled) == nil {
-			UserDefaults.standard.set(
-				mgrPrefs.associatedPhrasesEnabled, forKey: kAssociatedPhrasesEnabled)
-		}
-
-		// 預設漢音風格選字，所以要設成 0
-		if UserDefaults.standard.object(forKey: kSelectPhraseAfterCursorAsCandidatePreference)
-			== nil
-		{
-			UserDefaults.standard.set(
-				mgrPrefs.selectPhraseAfterCursorAsCandidate,
-				forKey: kSelectPhraseAfterCursorAsCandidatePreference)
-		}
-
-		// 預設在選字後自動移動游標
-		if UserDefaults.standard.object(forKey: kMoveCursorAfterSelectingCandidate) == nil {
-			UserDefaults.standard.set(
-				mgrPrefs.moveCursorAfterSelectingCandidate,
-				forKey: kMoveCursorAfterSelectingCandidate)
-		}
-
-		// 預設橫向選字窗，不爽請自行改成縱向選字窗
-		if UserDefaults.standard.object(forKey: kUseHorizontalCandidateListPreference) == nil {
-			UserDefaults.standard.set(
-				mgrPrefs.useHorizontalCandidateList, forKey: kUseHorizontalCandidateListPreference)
-		}
-
-		// 預設停用全字庫支援
-		if UserDefaults.standard.object(forKey: kCNS11643Enabled) == nil {
-			UserDefaults.standard.set(mgrPrefs.cns11643Enabled, forKey: kCNS11643Enabled)
-		}
-
-		// 預設停用繁體轉康熙模組
-		if UserDefaults.standard.object(forKey: kChineseConversionEnabled) == nil {
-			UserDefaults.standard.set(
-				mgrPrefs.chineseConversionEnabled, forKey: kChineseConversionEnabled)
-		}
-
-		// 預設停用繁體轉 JIS 當用新字體模組
-		if UserDefaults.standard.object(forKey: kShiftJISShinjitaiOutputEnabled) == nil {
-			UserDefaults.standard.set(
-				mgrPrefs.shiftJISShinjitaiOutputEnabled, forKey: kShiftJISShinjitaiOutputEnabled)
-		}
-
-		// 預設停用自訂語彙置換
-		if UserDefaults.standard.object(forKey: kPhraseReplacementEnabled) == nil {
-			UserDefaults.standard.set(
-				mgrPrefs.phraseReplacementEnabled, forKey: kPhraseReplacementEnabled)
-		}
-
-		// 預設沒事不要在那裡放屁
-		if UserDefaults.standard.object(forKey: kShouldNotFartInLieuOfBeep) == nil {
-			UserDefaults.standard.set(
-				mgrPrefs.shouldNotFartInLieuOfBeep, forKey: kShouldNotFartInLieuOfBeep)
-		}
 
 		UserDefaults.standard.synchronize()
 	}
 
-	@UserDefault(key: kIsDebugModeEnabled, defaultValue: false)
+	@UserDefault(key: UserDef.kIsDebugModeEnabled, defaultValue: false)
 	@objc static var isDebugModeEnabled: Bool
 
-	@UserDefault(key: kUserDataFolderSpecified, defaultValue: "")
+	@UserDefault(key: UserDef.kCheckUpdateAutomatically, defaultValue: false)
+	@objc static var checkUpdateAutomatically: Bool
+
+	@UserDefault(key: UserDef.kUserDataFolderSpecified, defaultValue: "")
 	@objc static var userDataFolderSpecified: String
 
 	@objc static func ifSpecifiedUserDataPathExistsInPlist() -> Bool {
-		UserDefaults.standard.object(forKey: kUserDataFolderSpecified) != nil
+		UserDefaults.standard.object(forKey: UserDef.kUserDataFolderSpecified) != nil
 	}
 
-	@UserDefault(key: kAppleLanguagesPreferences, defaultValue: [])
+	@objc static func resetSpecifiedUserDataFolder() {
+		UserDefaults.standard.removeObject(forKey: "UserDataFolderSpecified")
+		IME.initLangModels(userOnly: true)
+	}
+
+	@UserDefault(key: UserDef.kAppleLanguages, defaultValue: [])
 	@objc static var appleLanguages: [String]
 
-	@UserDefault(key: kKeyboardLayoutPreference, defaultValue: 0)
+	@UserDefault(key: UserDef.kMandarinParser, defaultValue: 0)
-	@objc static var keyboardLayout: Int
+	@objc static var mandarinParser: Int
 
-	@objc static var keyboardLayoutName: String {
+	@objc static var mandarinParserName: String {
-		(KeyboardLayout(rawValue: self.keyboardLayout) ?? KeyboardLayout.ofStandard).name
+		(MandarinParser(rawValue: self.mandarinParser) ?? MandarinParser.ofStandard).name
 	}
 
 	@UserDefault(
-		key: kBasisKeyboardLayoutPreference, defaultValue: "com.apple.keylayout.ZhuyinBopomofo")
+		key: UserDef.kBasicKeyboardLayout, defaultValue: "com.apple.keylayout.ZhuyinBopomofo")
-	@objc static var basisKeyboardLayout: String
+	@objc static var basicKeyboardLayout: String
 
-	@UserDefault(key: kShowPageButtonsInCandidateWindow, defaultValue: true)
+	@UserDefault(key: UserDef.kShowPageButtonsInCandidateWindow, defaultValue: true)
 	@objc static var showPageButtonsInCandidateWindow: Bool
 
-	@CandidateListTextSize(key: kCandidateListTextSize)
+	@CandidateListTextSize(key: UserDef.kCandidateListTextSize)
 	@objc static var candidateListTextSize: CGFloat
 
-	@UserDefault(key: kShouldAutoReloadUserDataFiles, defaultValue: true)
+	@UserDefault(key: UserDef.kShouldAutoReloadUserDataFiles, defaultValue: true)
 	@objc static var shouldAutoReloadUserDataFiles: Bool
 
-	@UserDefault(key: kSelectPhraseAfterCursorAsCandidatePreference, defaultValue: false)
+	@UserDefault(key: UserDef.kSelectPhraseAfterCursorAsCandidate, defaultValue: false)
 	@objc static var selectPhraseAfterCursorAsCandidate: Bool
 
-	@UserDefault(key: kMoveCursorAfterSelectingCandidate, defaultValue: false)
+	@UserDefault(key: UserDef.kMoveCursorAfterSelectingCandidate, defaultValue: true)
 	@objc static var moveCursorAfterSelectingCandidate: Bool
 
-	@UserDefault(key: kUseHorizontalCandidateListPreference, defaultValue: true)
+	@UserDefault(key: UserDef.kUseHorizontalCandidateList, defaultValue: true)
 	@objc static var useHorizontalCandidateList: Bool
 
-	@ComposingBufferSize(key: kComposingBufferSizePreference)
+	@ComposingBufferSize(key: UserDef.kComposingBufferSize)
 	@objc static var composingBufferSize: Int
 
-	@UserDefault(key: kChooseCandidateUsingSpace, defaultValue: true)
+	@UserDefault(key: UserDef.kChooseCandidateUsingSpace, defaultValue: true)
 	@objc static var chooseCandidateUsingSpace: Bool
 
-	@UserDefault(key: kUseSCPCTypingMode, defaultValue: false)
+	@UserDefault(key: UserDef.kUseSCPCTypingMode, defaultValue: false)
 	@objc static var useSCPCTypingMode: Bool
 
 	@objc static func toggleSCPCTypingModeEnabled() -> Bool {
 		useSCPCTypingMode = !useSCPCTypingMode
-		UserDefaults.standard.set(useSCPCTypingMode, forKey: kUseSCPCTypingMode)
+		UserDefaults.standard.set(useSCPCTypingMode, forKey: UserDef.kUseSCPCTypingMode)
 		return useSCPCTypingMode
 	}
 
-	@UserDefault(key: kMaxCandidateLength, defaultValue: kDefaultComposingBufferSize * 2)
+	@UserDefault(key: UserDef.kMaxCandidateLength, defaultValue: kDefaultComposingBufferSize * 2)
 	@objc static var maxCandidateLength: Int
 
-	@UserDefault(key: kShouldNotFartInLieuOfBeep, defaultValue: true)
+	@UserDefault(key: UserDef.kShouldNotFartInLieuOfBeep, defaultValue: true)
 	@objc static var shouldNotFartInLieuOfBeep: Bool
 
 	@objc static func toggleShouldNotFartInLieuOfBeep() -> Bool {
 		shouldNotFartInLieuOfBeep = !shouldNotFartInLieuOfBeep
-		UserDefaults.standard.set(shouldNotFartInLieuOfBeep, forKey: kShouldNotFartInLieuOfBeep)
+		UserDefaults.standard.set(shouldNotFartInLieuOfBeep, forKey: UserDef.kShouldNotFartInLieuOfBeep)
 		return shouldNotFartInLieuOfBeep
 	}
 
-	@UserDefault(key: kCNS11643Enabled, defaultValue: false)
+	@UserDefault(key: UserDef.kCNS11643Enabled, defaultValue: false)
 	@objc static var cns11643Enabled: Bool
 
 	@objc static func toggleCNS11643Enabled() -> Bool {
 		cns11643Enabled = !cns11643Enabled
 		mgrLangModel.setCNSEnabled(cns11643Enabled)  // 很重要
-		UserDefaults.standard.set(cns11643Enabled, forKey: kCNS11643Enabled)
+		UserDefaults.standard.set(cns11643Enabled, forKey: UserDef.kCNS11643Enabled)
 		return cns11643Enabled
 	}
 
-	@UserDefault(key: kSymbolInputEnabled, defaultValue: true)
+	@UserDefault(key: UserDef.kSymbolInputEnabled, defaultValue: true)
 	@objc static var symbolInputEnabled: Bool
 
 	@objc static func toggleSymbolInputEnabled() -> Bool {
 		symbolInputEnabled = !symbolInputEnabled
 		mgrLangModel.setSymbolEnabled(symbolInputEnabled)  // 很重要
-		UserDefaults.standard.set(symbolInputEnabled, forKey: kSymbolInputEnabled)
+		UserDefaults.standard.set(symbolInputEnabled, forKey: UserDef.kSymbolInputEnabled)
 		return symbolInputEnabled
 	}
 
-	@UserDefault(key: kChineseConversionEnabled, defaultValue: false)
+	@UserDefault(key: UserDef.kChineseConversionEnabled, defaultValue: false)
 	@objc static var chineseConversionEnabled: Bool
 
 	@objc @discardableResult static func toggleChineseConversionEnabled() -> Bool {
@@ -441,13 +374,13 @@ struct ComposingBufferSize {
 		if chineseConversionEnabled && shiftJISShinjitaiOutputEnabled {
 			self.toggleShiftJISShinjitaiOutputEnabled()
 			UserDefaults.standard.set(
-				shiftJISShinjitaiOutputEnabled, forKey: kShiftJISShinjitaiOutputEnabled)
+				shiftJISShinjitaiOutputEnabled, forKey: UserDef.kShiftJISShinjitaiOutputEnabled)
 		}
-		UserDefaults.standard.set(chineseConversionEnabled, forKey: kChineseConversionEnabled)
+		UserDefaults.standard.set(chineseConversionEnabled, forKey: UserDef.kChineseConversionEnabled)
 		return chineseConversionEnabled
 	}
 
-	@UserDefault(key: kShiftJISShinjitaiOutputEnabled, defaultValue: false)
+	@UserDefault(key: UserDef.kShiftJISShinjitaiOutputEnabled, defaultValue: false)
 	@objc static var shiftJISShinjitaiOutputEnabled: Bool
 
 	@objc @discardableResult static func toggleShiftJISShinjitaiOutputEnabled() -> Bool {
@@ -457,11 +390,11 @@ struct ComposingBufferSize {
 			self.toggleChineseConversionEnabled()
 		}
 		UserDefaults.standard.set(
-			shiftJISShinjitaiOutputEnabled, forKey: kShiftJISShinjitaiOutputEnabled)
+			shiftJISShinjitaiOutputEnabled, forKey: UserDef.kShiftJISShinjitaiOutputEnabled)
 		return shiftJISShinjitaiOutputEnabled
 	}
 
-	@UserDefault(key: kHalfWidthPunctuationEnabled, defaultValue: false)
+	@UserDefault(key: UserDef.kHalfWidthPunctuationEnabled, defaultValue: false)
 	@objc static var halfWidthPunctuationEnabled: Bool
 
 	@objc static func toggleHalfWidthPunctuationEnabled() -> Bool {
@@ -469,23 +402,23 @@ struct ComposingBufferSize {
 		return halfWidthPunctuationEnabled
 	}
 
-	@UserDefault(key: kEscToCleanInputBuffer, defaultValue: true)
+	@UserDefault(key: UserDef.kEscToCleanInputBuffer, defaultValue: true)
 	@objc static var escToCleanInputBuffer: Bool
 
-	@UserDefault(key: kSpecifyTabKeyBehavior, defaultValue: false)
+	@UserDefault(key: UserDef.kSpecifyShiftTabKeyBehavior, defaultValue: false)
-	@objc static var specifyTabKeyBehavior: Bool
+	@objc static var specifyShiftTabKeyBehavior: Bool
 
-	@UserDefault(key: kSpecifySpaceKeyBehavior, defaultValue: false)
+	@UserDefault(key: UserDef.kSpecifyShiftSpaceKeyBehavior, defaultValue: false)
-	@objc static var specifySpaceKeyBehavior: Bool
+	@objc static var specifyShiftSpaceKeyBehavior: Bool
 
 	// MARK: - Optional settings
-	@UserDefault(key: kCandidateTextFontName, defaultValue: nil)
+	@UserDefault(key: UserDef.kCandidateTextFontName, defaultValue: nil)
 	@objc static var candidateTextFontName: String?
 
-	@UserDefault(key: kCandidateKeyLabelFontName, defaultValue: nil)
+	@UserDefault(key: UserDef.kCandidateKeyLabelFontName, defaultValue: nil)
 	@objc static var candidateKeyLabelFontName: String?
 
-	@UserDefault(key: kCandidateKeys, defaultValue: kDefaultKeys)
+	@UserDefault(key: UserDef.kCandidateKeys, defaultValue: kDefaultKeys)
 	@objc static var candidateKeys: String
 
 	@objc static var defaultCandidateKeys: String {
@@ -548,22 +481,22 @@ struct ComposingBufferSize {
 
 	}
 
-	@UserDefault(key: kPhraseReplacementEnabled, defaultValue: false)
+	@UserDefault(key: UserDef.kPhraseReplacementEnabled, defaultValue: false)
 	@objc static var phraseReplacementEnabled: Bool
 
 	@objc static func togglePhraseReplacementEnabled() -> Bool {
 		phraseReplacementEnabled = !phraseReplacementEnabled
 		mgrLangModel.setPhraseReplacementEnabled(phraseReplacementEnabled)
-		UserDefaults.standard.set(phraseReplacementEnabled, forKey: kPhraseReplacementEnabled)
+		UserDefaults.standard.set(phraseReplacementEnabled, forKey: UserDef.kPhraseReplacementEnabled)
 		return phraseReplacementEnabled
 	}
 
-	@UserDefault(key: kAssociatedPhrasesEnabled, defaultValue: false)
+	@UserDefault(key: UserDef.kAssociatedPhrasesEnabled, defaultValue: false)
 	@objc static var associatedPhrasesEnabled: Bool
 
 	@objc static func toggleAssociatedPhrasesEnabled() -> Bool {
 		associatedPhrasesEnabled = !associatedPhrasesEnabled
-		UserDefaults.standard.set(associatedPhrasesEnabled, forKey: kAssociatedPhrasesEnabled)
+		UserDefaults.standard.set(associatedPhrasesEnabled, forKey: UserDef.kAssociatedPhrasesEnabled)
 		return associatedPhrasesEnabled
 	}
 

Source/Modules/LangModelRelated/mgrLangModel.h

@@ -35,29 +35,15 @@ NS_ASSUME_NONNULL_BEGIN
 + (void)loadUserPhrases;
 + (void)loadUserAssociatedPhrases;
 + (void)loadUserPhraseReplacement;
-+ (BOOL)checkIfUserLanguageModelFilesExist;
-+ (BOOL)checkIfUserDataFolderExists;
-+ (BOOL)checkIfSpecifiedUserDataFolderValid:(NSString *)folderPath;
-+ (NSString *)dataFolderPath:(bool)isDefaultFolder NS_SWIFT_NAME(dataFolderPath(isDefaultFolder:));
 
 + (BOOL)checkIfUserPhraseExist:(NSString *)userPhrase
                      inputMode:(InputMode)mode
                            key:(NSString *)key NS_SWIFT_NAME(checkIfUserPhraseExist(userPhrase:mode:key:));
-+ (BOOL)writeUserPhrase:(NSString *)userPhrase
++ (void)consolidateGivenFile:(NSString *)path shouldCheckPragma:(BOOL)shouldCheckPragma;
-              inputMode:(InputMode)mode
-       areWeDuplicating:(BOOL)areWeDuplicating
-          areWeDeleting:(BOOL)areWeDeleting;
 + (void)setPhraseReplacementEnabled:(BOOL)phraseReplacementEnabled;
 + (void)setCNSEnabled:(BOOL)cnsEnabled;
 + (void)setSymbolEnabled:(BOOL)symbolEnabled;
 
-+ (NSString *)specifyBundleDataPath:(NSString *)filename;
-+ (NSString *)userPhrasesDataPath:(InputMode)mode;
-+ (NSString *)userSymbolDataPath:(InputMode)mode;
-+ (NSString *)userAssociatedPhrasesDataPath:(InputMode)mode;
-+ (NSString *)excludedPhrasesDataPath:(InputMode)mode;
-+ (NSString *)phraseReplacementDataPath:(InputMode)mode;
-
 @end
 
 /// The following methods are merely for testing.

Source/Modules/LangModelRelated/mgrLangModel.mm

@@ -37,28 +37,16 @@ static vChewing::LMInstantiator gLangModelCHS;
 static vChewing::UserOverrideModel gUserOverrideModelCHT(kUserOverrideModelCapacity, kObservedOverrideHalflife);
 static vChewing::UserOverrideModel gUserOverrideModelCHS(kUserOverrideModelCapacity, kObservedOverrideHalflife);
 
-static NSString *const kUserDataTemplateName = @"template-data";
-static NSString *const kUserAssDataTemplateName = @"template-data";
-static NSString *const kExcludedPhrasesvChewingTemplateName = @"template-exclude-phrases";
-static NSString *const kPhraseReplacementTemplateName = @"template-phrases-replacement";
-static NSString *const kUserSymbolDataTemplateName = @"template-user-symbol-data";
-static NSString *const kTemplateExtension = @".txt";
-
 @implementation mgrLangModel
 
+// 這個函數無法遷移至 Swift
 static void LTLoadLanguageModelFile(NSString *filenameWithoutExtension, vChewing::LMInstantiator &lm)
 {
-    Class cls = NSClassFromString(@"ctlInputMethod");
+    NSString *dataPath = [mgrLangModel getBundleDataPath:filenameWithoutExtension];
-    NSString *dataPath = [[NSBundle bundleForClass:cls] pathForResource:filenameWithoutExtension ofType:@"txt"];
     lm.loadLanguageModel([dataPath UTF8String]);
 }
 
-+ (NSString *)specifyBundleDataPath:(NSString *)filenameWithoutExtension;
+// 這個函數無法遷移至 Swift
-{
-    Class cls = NSClassFromString(@"ctlInputMethod");
-    return [[NSBundle bundleForClass:cls] pathForResource:filenameWithoutExtension ofType:@"txt"];
-}
-
 + (void)loadDataModels
 {
     if (!gLangModelCHT.isDataModelLoaded())
@@ -67,15 +55,15 @@ static void LTLoadLanguageModelFile(NSString *filenameWithoutExtension, vChewing
     }
     if (!gLangModelCHT.isMiscDataLoaded())
     {
-        gLangModelCHT.loadMiscData([[self specifyBundleDataPath:@"data-zhuyinwen"] UTF8String]);
+        gLangModelCHT.loadMiscData([[self getBundleDataPath:@"data-zhuyinwen"] UTF8String]);
     }
     if (!gLangModelCHT.isSymbolDataLoaded())
     {
-        gLangModelCHT.loadSymbolData([[self specifyBundleDataPath:@"data-symbols"] UTF8String]);
+        gLangModelCHT.loadSymbolData([[self getBundleDataPath:@"data-symbols"] UTF8String]);
     }
     if (!gLangModelCHT.isCNSDataLoaded())
     {
-        gLangModelCHT.loadCNSData([[self specifyBundleDataPath:@"char-kanji-cns"] UTF8String]);
+        gLangModelCHT.loadCNSData([[self getBundleDataPath:@"char-kanji-cns"] UTF8String]);
     }
     // -----------------
     if (!gLangModelCHS.isDataModelLoaded())
@@ -84,18 +72,19 @@ static void LTLoadLanguageModelFile(NSString *filenameWithoutExtension, vChewing
     }
     if (!gLangModelCHS.isMiscDataLoaded())
     {
-        gLangModelCHS.loadMiscData([[self specifyBundleDataPath:@"data-zhuyinwen"] UTF8String]);
+        gLangModelCHS.loadMiscData([[self getBundleDataPath:@"data-zhuyinwen"] UTF8String]);
     }
     if (!gLangModelCHS.isSymbolDataLoaded())
     {
-        gLangModelCHS.loadSymbolData([[self specifyBundleDataPath:@"data-symbols"] UTF8String]);
+        gLangModelCHS.loadSymbolData([[self getBundleDataPath:@"data-symbols"] UTF8String]);
     }
     if (!gLangModelCHS.isCNSDataLoaded())
     {
-        gLangModelCHS.loadCNSData([[self specifyBundleDataPath:@"char-kanji-cns"] UTF8String]);
+        gLangModelCHS.loadCNSData([[self getBundleDataPath:@"char-kanji-cns"] UTF8String]);
     }
 }
 
+// 這個函數無法遷移至 Swift
 + (void)loadDataModel:(InputMode)mode
 {
     if ([mode isEqualToString:imeModeCHT])
@@ -106,15 +95,15 @@ static void LTLoadLanguageModelFile(NSString *filenameWithoutExtension, vChewing
         }
         if (!gLangModelCHT.isMiscDataLoaded())
         {
-            gLangModelCHT.loadMiscData([[self specifyBundleDataPath:@"data-zhuyinwen"] UTF8String]);
+            gLangModelCHT.loadMiscData([[self getBundleDataPath:@"data-zhuyinwen"] UTF8String]);
         }
         if (!gLangModelCHT.isSymbolDataLoaded())
         {
-            gLangModelCHT.loadSymbolData([[self specifyBundleDataPath:@"data-symbols"] UTF8String]);
+            gLangModelCHT.loadSymbolData([[self getBundleDataPath:@"data-symbols"] UTF8String]);
         }
         if (!gLangModelCHT.isCNSDataLoaded())
         {
-            gLangModelCHT.loadCNSData([[self specifyBundleDataPath:@"char-kanji-cns"] UTF8String]);
+            gLangModelCHT.loadCNSData([[self getBundleDataPath:@"char-kanji-cns"] UTF8String]);
         }
     }
 
@@ -126,19 +115,20 @@ static void LTLoadLanguageModelFile(NSString *filenameWithoutExtension, vChewing
         }
         if (!gLangModelCHS.isMiscDataLoaded())
         {
-            gLangModelCHS.loadMiscData([[self specifyBundleDataPath:@"data-zhuyinwen"] UTF8String]);
+            gLangModelCHS.loadMiscData([[self getBundleDataPath:@"data-zhuyinwen"] UTF8String]);
         }
         if (!gLangModelCHS.isSymbolDataLoaded())
         {
-            gLangModelCHS.loadSymbolData([[self specifyBundleDataPath:@"data-symbols"] UTF8String]);
+            gLangModelCHS.loadSymbolData([[self getBundleDataPath:@"data-symbols"] UTF8String]);
         }
         if (!gLangModelCHS.isCNSDataLoaded())
         {
-            gLangModelCHS.loadCNSData([[self specifyBundleDataPath:@"char-kanji-cns"] UTF8String]);
+            gLangModelCHS.loadCNSData([[self getBundleDataPath:@"char-kanji-cns"] UTF8String]);
         }
     }
 }
 
+// 這個函數無法遷移至 Swift
 + (void)loadUserPhrases
 {
     gLangModelCHT.loadUserPhrases([[self userPhrasesDataPath:imeModeCHT] UTF8String],
@@ -149,136 +139,21 @@ static void LTLoadLanguageModelFile(NSString *filenameWithoutExtension, vChewing
     gLangModelCHS.loadUserSymbolData([[self userSymbolDataPath:imeModeCHS] UTF8String]);
 }
 
+// 這個函數無法遷移至 Swift
 + (void)loadUserAssociatedPhrases
 {
     gLangModelCHT.loadUserAssociatedPhrases([[self userAssociatedPhrasesDataPath:imeModeCHT] UTF8String]);
     gLangModelCHS.loadUserAssociatedPhrases([[self userAssociatedPhrasesDataPath:imeModeCHS] UTF8String]);
 }
 
+// 這個函數無法遷移至 Swift
 + (void)loadUserPhraseReplacement
 {
     gLangModelCHT.loadPhraseReplacementMap([[self phraseReplacementDataPath:imeModeCHT] UTF8String]);
     gLangModelCHS.loadPhraseReplacementMap([[self phraseReplacementDataPath:imeModeCHS] UTF8String]);
 }
 
-+ (BOOL)checkIfUserDataFolderExists
+// 這個函數無法遷移至 Swift
-{
-    NSString *folderPath = [self dataFolderPath:false];
-    BOOL isFolder = NO;
-    BOOL folderExist = [[NSFileManager defaultManager] fileExistsAtPath:folderPath isDirectory:&isFolder];
-    if (folderExist && !isFolder)
-    {
-        NSError *error = nil;
-        [[NSFileManager defaultManager] removeItemAtPath:folderPath error:&error];
-        if (error)
-        {
-            NSLog(@"Failed to remove folder %@", error);
-            return NO;
-        }
-        folderExist = NO;
-    }
-    if (!folderExist)
-    {
-        NSError *error = nil;
-        [[NSFileManager defaultManager] createDirectoryAtPath:folderPath
-                                  withIntermediateDirectories:YES
-                                                   attributes:nil
-                                                        error:&error];
-        if (error)
-        {
-            NSLog(@"Failed to create folder %@", error);
-            return NO;
-        }
-    }
-    return YES;
-}
-
-+ (BOOL)checkIfSpecifiedUserDataFolderValid:(NSString *)folderPath
-{
-    BOOL isFolder = NO;
-    BOOL folderExist = [[NSFileManager defaultManager] fileExistsAtPath:folderPath isDirectory:&isFolder];
-    if ((folderExist && !isFolder) || (!folderExist))
-    {
-        return NO;
-    }
-    return YES;
-}
-
-+ (BOOL)ensureFileExists:(NSString *)filePath
-    populateWithTemplate:(NSString *)templateBasename
-               extension:(NSString *)ext
-{
-    if (![[NSFileManager defaultManager] fileExistsAtPath:filePath])
-    {
-
-        NSURL *templateURL = [[NSBundle mainBundle] URLForResource:templateBasename withExtension:ext];
-        NSData *templateData;
-        if (templateURL)
-        {
-            templateData = [NSData dataWithContentsOfURL:templateURL];
-        }
-        else
-        {
-            templateData = [@"" dataUsingEncoding:NSUTF8StringEncoding];
-        }
-
-        BOOL result = [templateData writeToFile:filePath atomically:YES];
-        if (!result)
-        {
-            NSLog(@"Failed to write file");
-            return NO;
-        }
-    }
-    return YES;
-}
-
-+ (BOOL)checkIfUserLanguageModelFilesExist
-{
-    if (![self checkIfUserDataFolderExists])
-        return NO;
-    if (![self ensureFileExists:[self userPhrasesDataPath:imeModeCHS]
-            populateWithTemplate:kUserDataTemplateName
-                       extension:kTemplateExtension])
-        return NO;
-    if (![self ensureFileExists:[self userPhrasesDataPath:imeModeCHT]
-            populateWithTemplate:kUserDataTemplateName
-                       extension:kTemplateExtension])
-        return NO;
-    if (![self ensureFileExists:[self userAssociatedPhrasesDataPath:imeModeCHS]
-            populateWithTemplate:kUserAssDataTemplateName
-                       extension:kTemplateExtension])
-        return NO;
-    if (![self ensureFileExists:[self userAssociatedPhrasesDataPath:imeModeCHT]
-            populateWithTemplate:kUserAssDataTemplateName
-                       extension:kTemplateExtension])
-        return NO;
-    if (![self ensureFileExists:[self excludedPhrasesDataPath:imeModeCHS]
-            populateWithTemplate:kExcludedPhrasesvChewingTemplateName
-                       extension:kTemplateExtension])
-        return NO;
-    if (![self ensureFileExists:[self excludedPhrasesDataPath:imeModeCHT]
-            populateWithTemplate:kExcludedPhrasesvChewingTemplateName
-                       extension:kTemplateExtension])
-        return NO;
-    if (![self ensureFileExists:[self phraseReplacementDataPath:imeModeCHS]
-            populateWithTemplate:kPhraseReplacementTemplateName
-                       extension:kTemplateExtension])
-        return NO;
-    if (![self ensureFileExists:[self phraseReplacementDataPath:imeModeCHT]
-            populateWithTemplate:kPhraseReplacementTemplateName
-                       extension:kTemplateExtension])
-        return NO;
-    if (![self ensureFileExists:[self userSymbolDataPath:imeModeCHT]
-            populateWithTemplate:kUserSymbolDataTemplateName
-                       extension:kTemplateExtension])
-        return NO;
-    if (![self ensureFileExists:[self userSymbolDataPath:imeModeCHS]
-            populateWithTemplate:kUserSymbolDataTemplateName
-                       extension:kTemplateExtension])
-        return NO;
-    return YES;
-}
-
 + (BOOL)checkIfUserPhraseExist:(NSString *)userPhrase
                      inputMode:(InputMode)mode
                            key:(NSString *)key NS_SWIFT_NAME(checkIfUserPhraseExist(userPhrase:mode:key:))
@@ -297,144 +172,51 @@ static void LTLoadLanguageModelFile(NSString *filenameWithoutExtension, vChewing
     return NO;
 }
 
-+ (BOOL)writeUserPhrase:(NSString *)userPhrase
+// 這個函數無法遷移至 Swift
-              inputMode:(InputMode)mode
++ (void)consolidateGivenFile:(NSString *)path shouldCheckPragma:(BOOL)shouldCheckPragma
-       areWeDuplicating:(BOOL)areWeDuplicating
-          areWeDeleting:(BOOL)areWeDeleting
 {
-    if (![self checkIfUserLanguageModelFilesExist])
+    vChewing::LMConsolidator::ConsolidateContent([path UTF8String], shouldCheckPragma);
-    {
-        return NO;
-    }
-
-    // BOOL addLineBreakAtFront = NO;
-    NSString *path = areWeDeleting ? [self excludedPhrasesDataPath:mode] : [self userPhrasesDataPath:mode];
-
-    NSMutableString *currentMarkedPhrase = [NSMutableString string];
-    // if (addLineBreakAtFront) {
-    //     [currentMarkedPhrase appendString:@"\n"];
-    // }
-    [currentMarkedPhrase appendString:userPhrase];
-    if (areWeDuplicating && !areWeDeleting)
-    {
-        // Do not use ASCII characters to comment here.
-        // Otherwise, it will be scrambled by cnvHYPYtoBPMF module shipped in the vChewing Phrase Editor.
-        [currentMarkedPhrase appendString:@"\t#𝙾𝚟𝚎𝚛𝚛𝚒𝚍𝚎"];
-    }
-    [currentMarkedPhrase appendString:@"\n"];
-
-    NSFileHandle *writeFile = [NSFileHandle fileHandleForUpdatingAtPath:path];
-    if (!writeFile)
-    {
-        return NO;
-    }
-    [writeFile seekToEndOfFile];
-    NSData *data = [currentMarkedPhrase dataUsingEncoding:NSUTF8StringEncoding];
-    [writeFile writeData:data];
-    [writeFile closeFile];
-
-    // We enforce the format consolidation here, since the pragma header will let the UserPhraseLM bypasses the
-    // consolidating process on load.
-    vChewing::LMConsolidator::ConsolidateContent([path UTF8String], false);
-
-    //  We use FSEventStream to monitor the change of the user phrase folder,
-    //  so we don't have to load data here unless FSEventStream is disabled by user.
-    if (!mgrPrefs.shouldAutoReloadUserDataFiles)
-    {
-        [self loadUserPhrases];
-    }
-    return YES;
-}
-
-+ (NSString *)dataFolderPath:(bool)isDefaultFolder
-{
-    // 此處不能用「~」來取代當前使用者目錄名稱。不然的話，一旦輸入法被系統的沙箱干預的話，則反而會定位到沙箱目錄內。
-    NSString *appSupportPath = [NSFileManager.defaultManager URLsForDirectory:NSApplicationSupportDirectory
-                                                                    inDomains:NSUserDomainMask][0].path;
-    NSString *userDictPath = [appSupportPath stringByAppendingPathComponent:@"vChewing"].stringByExpandingTildeInPath;
-    if (mgrPrefs.userDataFolderSpecified.stringByExpandingTildeInPath == userDictPath || isDefaultFolder)
-    {
-        return userDictPath;
-    }
-    if ([mgrPrefs ifSpecifiedUserDataPathExistsInPlist])
-    {
-        if ([self checkIfSpecifiedUserDataFolderValid:mgrPrefs.userDataFolderSpecified.stringByExpandingTildeInPath])
-        {
-            return mgrPrefs.userDataFolderSpecified.stringByExpandingTildeInPath;
-        }
-        else
-        {
-            [NSUserDefaults.standardUserDefaults removeObjectForKey:@"UserDataFolderSpecified"];
-        }
-    }
-    return userDictPath;
-}
-
-+ (NSString *)userPhrasesDataPath:(InputMode)mode;
-{
-    NSString *fileName = [mode isEqualToString:imeModeCHT] ? @"userdata-cht.txt" : @"userdata-chs.txt";
-    return [[self dataFolderPath:false] stringByAppendingPathComponent:fileName];
-}
-
-+ (NSString *)userSymbolDataPath:(InputMode)mode;
-{
-    NSString *fileName =
-        [mode isEqualToString:imeModeCHT] ? @"usersymbolphrases-cht.txt" : @"usersymbolphrases-chs.txt";
-    return [[self dataFolderPath:false] stringByAppendingPathComponent:fileName];
-}
-
-+ (NSString *)userAssociatedPhrasesDataPath:(InputMode)mode;
-{
-    NSString *fileName =
-        [mode isEqualToString:imeModeCHT] ? @"associatedPhrases-cht.txt" : @"associatedPhrases-chs.txt";
-    return [[self dataFolderPath:false] stringByAppendingPathComponent:fileName];
-}
-
-+ (NSString *)excludedPhrasesDataPath:(InputMode)mode;
-{
-    NSString *fileName = [mode isEqualToString:imeModeCHT] ? @"exclude-phrases-cht.txt" : @"exclude-phrases-chs.txt";
-    return [[self dataFolderPath:false] stringByAppendingPathComponent:fileName];
-}
-
-+ (NSString *)phraseReplacementDataPath:(InputMode)mode;
-{
-    NSString *fileName =
-        [mode isEqualToString:imeModeCHT] ? @"phrases-replacement-cht.txt" : @"phrases-replacement-chs.txt";
-    return [[self dataFolderPath:false] stringByAppendingPathComponent:fileName];
 }
 
+// 這個函數無法遷移至 Swift
 + (vChewing::LMInstantiator *)lmCHT
 {
     return &gLangModelCHT;
 }
 
+// 這個函數無法遷移至 Swift
 + (vChewing::LMInstantiator *)lmCHS
 {
     return &gLangModelCHS;
 }
 
+// 這個函數無法遷移至 Swift
 + (vChewing::UserOverrideModel *)userOverrideModelCHT
 {
     return &gUserOverrideModelCHT;
 }
 
+// 這個函數無法遷移至 Swift
 + (vChewing::UserOverrideModel *)userOverrideModelCHS
 {
     return &gUserOverrideModelCHS;
 }
 
+// 這個函數無法遷移至 Swift
 + (void)setPhraseReplacementEnabled:(BOOL)phraseReplacementEnabled
 {
     gLangModelCHT.setPhraseReplacementEnabled(phraseReplacementEnabled);
     gLangModelCHS.setPhraseReplacementEnabled(phraseReplacementEnabled);
 }
 
+// 這個函數無法遷移至 Swift
 + (void)setCNSEnabled:(BOOL)cnsEnabled
 {
     gLangModelCHT.setCNSEnabled(cnsEnabled);
     gLangModelCHS.setCNSEnabled(cnsEnabled);
 }
 
+// 這個函數無法遷移至 Swift
 + (void)setSymbolEnabled:(BOOL)symbolEnabled
 {
     gLangModelCHT.setSymbolEnabled(symbolEnabled);

Source/Modules/LangModelRelated/mgrLangModel.swift

@@ -0,0 +1,242 @@
+// Copyright (c) 2021 and onwards The vChewing Project (MIT-NTL License).
+/*
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+1. The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+2. No trademark license is granted to use the trade names, trademarks, service
+marks, or product names of Contributor, except as required to fulfill notice
+requirements above.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+
+import Cocoa
+
+@objc extension mgrLangModel {
+
+	// MARK: - 獲取當前輸入法封包內的原廠核心語彙檔案所在路徑
+	static func getBundleDataPath(_ filenameSansExt: String) -> String {
+		return Bundle.main.path(forResource: filenameSansExt, ofType: "txt")!
+	}
+
+	// MARK: - 使用者語彙檔案的具體檔案名稱路徑定義
+	// Swift 的 appendingPathComponent 需要藉由 URL 完成，最後再用 .path 轉為路徑。
+
+	static func userPhrasesDataPath(_ mode: InputMode) -> String {
+		let fileName = (mode == InputMode.imeModeCHT) ? "userdata-cht.txt" : "userdata-chs.txt"
+		return URL(fileURLWithPath: self.dataFolderPath(isDefaultFolder: false)).appendingPathComponent(fileName).path
+	}
+
+	static func userSymbolDataPath(_ mode: InputMode) -> String {
+		let fileName = (mode == InputMode.imeModeCHT) ? "usersymbolphrases-cht.txt" : "usersymbolphrases-chs.txt"
+		return URL(fileURLWithPath: self.dataFolderPath(isDefaultFolder: false)).appendingPathComponent(fileName).path
+	}
+
+	static func userAssociatedPhrasesDataPath(_ mode: InputMode) -> String {
+		let fileName = (mode == InputMode.imeModeCHT) ? "associatedPhrases-cht.txt" : "associatedPhrases-chs.txt"
+		return URL(fileURLWithPath: self.dataFolderPath(isDefaultFolder: false)).appendingPathComponent(fileName).path
+	}
+
+	static func excludedPhrasesDataPath(_ mode: InputMode) -> String {
+		let fileName = (mode == InputMode.imeModeCHT) ? "exclude-phrases-cht.txt" : "exclude-phrases-chs.txt"
+		return URL(fileURLWithPath: self.dataFolderPath(isDefaultFolder: false)).appendingPathComponent(fileName).path
+	}
+
+	static func phraseReplacementDataPath(_ mode: InputMode) -> String {
+		let fileName = (mode == InputMode.imeModeCHT) ? "phrases-replacement-cht.txt" : "phrases-replacement-chs.txt"
+		return URL(fileURLWithPath: self.dataFolderPath(isDefaultFolder: false)).appendingPathComponent(fileName).path
+	}
+
+	// MARK: - 檢查具體的使用者語彙檔案是否存在
+
+	static func ensureFileExists(
+		_ filePath: String, populateWithTemplate templateBasename: String = "1145141919810",
+		extension ext: String = "txt"
+	) -> Bool {
+		if !FileManager.default.fileExists(atPath: filePath) {
+			let templateURL = Bundle.main.url(forResource: templateBasename, withExtension: ext)
+			var templateData = Data("".utf8)
+			if templateBasename != "" {
+				do {
+					try templateData = Data(contentsOf: templateURL ?? URL(fileURLWithPath: ""))
+				} catch {
+					templateData = Data("".utf8)
+				}
+				do {
+					try templateData.write(to: URL(fileURLWithPath: filePath))
+				} catch {
+					IME.prtDebugIntel("Failed to write file")
+					return false
+				}
+			}
+		}
+		return true
+	}
+
+	static func chkUserLMFilesExist(_ mode: InputMode) -> Bool {
+		if !self.checkIfUserDataFolderExists() {
+			return false
+		}
+		if !ensureFileExists(userPhrasesDataPath(mode))
+			|| !ensureFileExists(userAssociatedPhrasesDataPath(mode))
+			|| !ensureFileExists(excludedPhrasesDataPath(mode))
+			|| !ensureFileExists(phraseReplacementDataPath(mode))
+			|| !ensureFileExists(userSymbolDataPath(mode))
+		{
+			return false
+		}
+
+		return true
+	}
+
+	// MARK: - 使用者語彙檔案專用目錄的合規性檢查
+
+	// 一次性檢查給定的目錄是否存在寫入合規性（僅用於偏好設定檢查等初步檢查場合，不做任何糾偏行為）
+	static func checkIfSpecifiedUserDataFolderValid(_ folderPath: String?) -> Bool {
+		var isFolder = ObjCBool(false)
+		let folderExist = FileManager.default.fileExists(atPath: folderPath ?? "", isDirectory: &isFolder)
+		// The above "&" mutates the "isFolder" value to the real one received by the "folderExist".
+
+		// 路徑沒有結尾斜槓的話，會導致目錄合規性判定失準。
+		// 出於每個型別每個函數的自我責任原則，這裡多檢查一遍也不壞。
+		var folderPath = folderPath  // Convert the incoming constant to a variable.
+		if isFolder.boolValue {
+			folderPath?.ensureTrailingSlash()
+		}
+		let isFolderWritable = FileManager.default.isWritableFile(atPath: folderPath ?? "")
+
+		if ((folderExist && !isFolder.boolValue) || !folderExist) || !isFolderWritable {
+			return false
+		}
+
+		return true
+	}
+
+	// ⚠︎ 私有函數：檢查且糾偏，不接受任何傳入變數。該函數不用於其他型別。
+	// 待辦事項：擇日合併至另一個同類型的函數當中。
+	static func checkIfUserDataFolderExists() -> Bool {
+		let folderPath = mgrLangModel.dataFolderPath(isDefaultFolder: false)
+		var isFolder = ObjCBool(false)
+		var folderExist = FileManager.default.fileExists(atPath: folderPath, isDirectory: &isFolder)
+		// The above "&" mutates the "isFolder" value to the real one received by the "folderExist".
+		// 發現目標路徑不是目錄的話：
+		// 如果要找的目標路徑是原廠目標路徑的話，先將這個路徑的所指對象更名、再認為目錄不存在。
+		// 如果要找的目標路徑不是原廠目標路徑的話，則直接報錯。
+		if folderExist && !isFolder.boolValue {
+			do {
+				if self.dataFolderPath(isDefaultFolder: false)
+					== self.dataFolderPath(isDefaultFolder: true)
+				{
+					let formatter = DateFormatter.init()
+					formatter.dateFormat = "YYYYMMDD-HHMM'Hrs'-ss's'"
+					let dirAlternative = folderPath + formatter.string(from: Date())
+					try FileManager.default.moveItem(atPath: folderPath, toPath: dirAlternative)
+				} else {
+					throw folderPath
+				}
+			} catch {
+				print("Failed to make path available at: \(error)")
+				return false
+			}
+			folderExist = false
+		}
+		if !folderExist {
+			do {
+				try FileManager.default.createDirectory(
+					atPath: folderPath,
+					withIntermediateDirectories: true,
+					attributes: nil)
+			} catch {
+				print("Failed to create folder: \(error)")
+				return false
+			}
+		}
+		return true
+	}
+
+	// MARK: - 用以讀取使用者語彙檔案目錄的函數，會自動對 mgrPrefs 當中的參數糾偏。
+	// 當且僅當 mgrPrefs 當中的參數不合規（比如非實在路徑、或者無權限寫入）時，才會糾偏。
+
+	static func dataFolderPath(isDefaultFolder: Bool) -> String {
+		let appSupportPath = FileManager.default.urls(for: .applicationSupportDirectory, in: .userDomainMask)[0].path
+		var userDictPathSpecified = (mgrPrefs.userDataFolderSpecified as NSString).expandingTildeInPath
+		var userDictPathDefault =
+			(URL(fileURLWithPath: appSupportPath).appendingPathComponent("vChewing").path as NSString)
+			.expandingTildeInPath
+
+		userDictPathDefault.ensureTrailingSlash()
+		userDictPathSpecified.ensureTrailingSlash()
+
+		if (userDictPathSpecified == userDictPathDefault)
+			|| isDefaultFolder
+		{
+			return userDictPathDefault
+		}
+		if mgrPrefs.ifSpecifiedUserDataPathExistsInPlist() {
+			if mgrLangModel.checkIfSpecifiedUserDataFolderValid(userDictPathSpecified) {
+				return userDictPathSpecified
+			} else {
+				UserDefaults.standard.removeObject(forKey: "UserDataFolderSpecified")
+			}
+		}
+		return userDictPathDefault
+	}
+
+	// MARK: - 寫入使用者檔案
+	static func writeUserPhrase(
+		_ userPhrase: String?, inputMode mode: InputMode, areWeDuplicating: Bool, areWeDeleting: Bool
+	) -> Bool {
+		if var currentMarkedPhrase: String = userPhrase {
+			if !self.chkUserLMFilesExist(InputMode.imeModeCHS)
+				|| !self.chkUserLMFilesExist(InputMode.imeModeCHT)
+			{
+				return false
+			}
+
+			let path = areWeDeleting ? self.excludedPhrasesDataPath(mode) : self.userPhrasesDataPath(mode)
+
+			if areWeDuplicating && !areWeDeleting {
+				// Do not use ASCII characters to comment here.
+				// Otherwise, it will be scrambled by cnvHYPYtoBPMF
+				// module shipped in the vChewing Phrase Editor.
+				currentMarkedPhrase += "\t#𝙾𝚟𝚎𝚛𝚛𝚒𝚍𝚎"
+			}
+			currentMarkedPhrase += "\n"
+
+			if let writeFile = FileHandle(forUpdatingAtPath: path),
+				let data = currentMarkedPhrase.data(using: .utf8)
+			{
+				writeFile.seekToEndOfFile()
+				writeFile.write(data)
+				writeFile.closeFile()
+			} else {
+				return false
+			}
+
+			// We enforce the format consolidation here, since the pragma header
+			// will let the UserPhraseLM bypasses the consolidating process on load.
+			self.consolidate(givenFile: path, shouldCheckPragma: false)
+
+			// We use FSEventStream to monitor possible changes of the user phrase folder, hence the
+			// lack of the needs of manually load data here unless FSEventStream is disabled by user.
+			if !mgrPrefs.shouldAutoReloadUserDataFiles {
+				self.loadUserPhrases()
+			}
+			return true
+		}
+		return false
+	}
+
+}

Source/Modules/SFX/clsSFX.swift

@@ -1,5 +1,6 @@
 // Copyright (c) 2022 and onwards Isaac Xen (MIT License).
-// All possible vChewing-specific modifications are (c) 2021 and onwards The vChewing Project (MIT-NTL License).
+// All possible vChewing-specific modifications are of:
+// (c) 2021 and onwards The vChewing Project (MIT-NTL License).
 /*
 Permission is hereby granted, free of charge, to any person obtaining a copy of
 this software and associated documentation files (the "Software"), to deal in

Source/Resources/Base.lproj/Localizable.strings

@@ -73,3 +73,71 @@
 "catDoubleTableLines" = "DoubleTableLines";
 "catFillingBlocks" = "FillingBlocks";
 "catLineSegments" = "LineSegments";
+
+// SwiftUI Preferences
+"(Shift+)Space:" = "(Shift+)Space:";
+"An accomodation for elder computer users." = "An accomodation for elder computer users.";
+"Apple ABC (equivalent to English US)" = "Apple ABC (equivalent to English US)";
+"Apple Chewing - Dachen" = "Apple Chewing - Dachen";
+"Apple Chewing - Eten Traditional" = "Apple Chewing - Eten Traditional";
+"Apple Dynamic Bopomofo Basic Keyboard Layouts (Dachen & Eten Traditional) must match the Dachen parser in order to be functional." = "Apple Dynamic Bopomofo Basic Keyboard Layouts (Dachen & Eten Traditional) must match the Dachen parser in order to be functional.";
+"Auto-convert traditional Chinese glyphs to JIS Shinjitai characters" = "Auto-convert traditional Chinese glyphs to JIS Shinjitai characters";
+"Auto-convert traditional Chinese glyphs to KangXi characters" = "Auto-convert traditional Chinese glyphs to KangXi characters";
+"Automatically reload user data files if changes detected" = "Automatically reload user data files if changes detected";
+"Basic Keyboard Layout:" = "Basic Keyboard Layout:";
+"Candidate Layout:" = "Candidate Layout:";
+"Candidate Size:" = "Candidate Size:";
+"Change user interface language (will reboot the IME)." = "Change user interface language (will reboot the IME).";
+"Check for updates automatically" = "Check for updates automatically";
+"Choose candidate font size for better visual clarity." = "Choose candidate font size for better visual clarity.";
+"Choose or hit Enter to confim your prefered keys for selecting candidates." = "Choose or hit Enter to confim your prefered keys for selecting candidates.";
+"Choose the behavior of (Shift+)Space key in the candidate window." = "Choose the behavior of (Shift+)Space key in the candidate window.";
+"Choose the behavior of (Shift+)Tab key in the candidate window." = "Choose the behavior of (Shift+)Tab key in the candidate window.";
+"Choose the cursor position where you want to list possible candidates." = "Choose the cursor position where you want to list possible candidates.";
+"Choose the macOS-level basic keyboard layout." = "Choose the macOS-level basic keyboard layout.";
+"Choose the phonetic layout for Mandarin parser." = "Choose the phonetic layout for Mandarin parser.";
+"Choose your desired user data folder path. Will be omitted if invalid." = "Choose your desired user data folder path. Will be omitted if invalid.";
+"Choose your preferred layout of the candidate window." = "Choose your preferred layout of the candidate window.";
+"Cursor Selection:" = "Cursor Selection:";
+"Dachen (Microsoft Standard / Wang / 01, etc.)" = "Dachen (Microsoft Standard / Wang / 01, etc.)";
+"Debug Mode" = "Debug Mode";
+"Dictionary" = "Dictionary";
+"Emulating select-candidate-per-character mode" = "Emulating select-candidate-per-character mode";
+"Enable CNS11643 Support (2022-01-27)" = "Enable CNS11643 Support (2022-01-27)";
+"Enable Space key for calling candidate window" = "Enable Space key for calling candidate window";
+"Enable symbol input support (incl. certain emoji symbols)" = "Enable symbol input support (incl. certain emoji symbols)";
+"English" = "English";
+"Eten 26" = "Eten 26";
+"Eten Traditional" = "Eten Traditional";
+"Experience" = "Experience";
+"Fake Seigyou" = "Fake Seigyou";
+"Follow OS settings" = "Follow OS settings";
+"for cycling candidates" = "for cycling candidates";
+"for cycling pages" = "for cycling pages";
+"General" = "General";
+"Hanyu Pinyin with Numeral Intonation" = "Hanyu Pinyin with Numeral Intonation";
+"Horizontal" = "Horizontal";
+"Hsu" = "Hsu";
+"IBM" = "IBM";
+"Japanese" = "Japanese";
+"Keyboard" = "Keyboard";
+"Misc Settings:" = "Misc Settings:";
+"MiTAC" = "MiTAC";
+"Non-QWERTY alphanumeral keyboard layouts are for Hanyu Pinyin parser only." = "Non-QWERTY alphanumeral keyboard layouts are for Hanyu Pinyin parser only.";
+"Output Settings:" = "Output Settings:";
+"Phonetic Parser:" = "Phonetic Parser:";
+"Push the cursor to the front of the phrase after selection" = "Push the cursor to the front of the phrase after selection";
+"Selection Keys:" = "Selection Keys:";
+"Show page buttons in candidate window" = "Show page buttons in candidate window";
+"Simplified Chinese" = "Simplified Chinese";
+"Space & ESC Key:" = "Space & ESC Key:";
+"Space to +cycle candidates, Shift+Space to +cycle pages" = "Space to +cycle candidates, Shift+Space to +cycle pages";
+"Space to +cycle pages, Shift+Space to +cycle candidates" = "Space to +cycle pages, Shift+Space to +cycle candidates";
+"Stop farting (when typed phonetic combination is invalid, etc.)" = "Stop farting (when typed phonetic combination is invalid, etc.)";
+"to the front of the phrase (like Matsushita Hanin IME)" = "to the front of the phrase (like Matsushita Hanin IME)";
+"to the rear of the phrase (like MS New-Phonetic IME)" = "to the rear of the phrase (like MS New-Phonetic IME)";
+"Traditional Chinese" = "Traditional Chinese";
+"Typing Style:" = "Typing Style:";
+"UI Language:" = "UI Language:";
+"Use ESC key to clear the entire input buffer" = "Use ESC key to clear the entire input buffer";
+"Vertical" = "Vertical";

Source/Resources/en.lproj/Localizable.strings

@@ -73,3 +73,71 @@
 "catDoubleTableLines" = "DoubleTableLines";
 "catFillingBlocks" = "FillingBlocks";
 "catLineSegments" = "LineSegments";
+
+// SwiftUI Preferences
+"(Shift+)Space:" = "(Shift+)Space:";
+"An accomodation for elder computer users." = "An accomodation for elder computer users.";
+"Apple ABC (equivalent to English US)" = "Apple ABC (equivalent to English US)";
+"Apple Chewing - Dachen" = "Apple Chewing - Dachen";
+"Apple Chewing - Eten Traditional" = "Apple Chewing - Eten Traditional";
+"Apple Dynamic Bopomofo Basic Keyboard Layouts (Dachen & Eten Traditional) must match the Dachen parser in order to be functional." = "Apple Dynamic Bopomofo Basic Keyboard Layouts (Dachen & Eten Traditional) must match the Dachen parser in order to be functional.";
+"Auto-convert traditional Chinese glyphs to JIS Shinjitai characters" = "Auto-convert traditional Chinese glyphs to JIS Shinjitai characters";
+"Auto-convert traditional Chinese glyphs to KangXi characters" = "Auto-convert traditional Chinese glyphs to KangXi characters";
+"Automatically reload user data files if changes detected" = "Automatically reload user data files if changes detected";
+"Basic Keyboard Layout:" = "Basic Keyboard Layout:";
+"Candidate Layout:" = "Candidate Layout:";
+"Candidate Size:" = "Candidate Size:";
+"Change user interface language (will reboot the IME)." = "Change user interface language (will reboot the IME).";
+"Check for updates automatically" = "Check for updates automatically";
+"Choose candidate font size for better visual clarity." = "Choose candidate font size for better visual clarity.";
+"Choose or hit Enter to confim your prefered keys for selecting candidates." = "Choose or hit Enter to confim your prefered keys for selecting candidates.";
+"Choose the behavior of (Shift+)Space key in the candidate window." = "Choose the behavior of (Shift+)Space key in the candidate window.";
+"Choose the behavior of (Shift+)Tab key in the candidate window." = "Choose the behavior of (Shift+)Tab key in the candidate window.";
+"Choose the cursor position where you want to list possible candidates." = "Choose the cursor position where you want to list possible candidates.";
+"Choose the macOS-level basic keyboard layout." = "Choose the macOS-level basic keyboard layout.";
+"Choose the phonetic layout for Mandarin parser." = "Choose the phonetic layout for Mandarin parser.";
+"Choose your desired user data folder path. Will be omitted if invalid." = "Choose your desired user data folder path. Will be omitted if invalid.";
+"Choose your preferred layout of the candidate window." = "Choose your preferred layout of the candidate window.";
+"Cursor Selection:" = "Cursor Selection:";
+"Dachen (Microsoft Standard / Wang / 01, etc.)" = "Dachen (Microsoft Standard / Wang / 01, etc.)";
+"Debug Mode" = "Debug Mode";
+"Dictionary" = "Dictionary";
+"Emulating select-candidate-per-character mode" = "Emulating select-candidate-per-character mode";
+"Enable CNS11643 Support (2022-01-27)" = "Enable CNS11643 Support (2022-01-27)";
+"Enable Space key for calling candidate window" = "Enable Space key for calling candidate window";
+"Enable symbol input support (incl. certain emoji symbols)" = "Enable symbol input support (incl. certain emoji symbols)";
+"English" = "English";
+"Eten 26" = "Eten 26";
+"Eten Traditional" = "Eten Traditional";
+"Experience" = "Experience";
+"Fake Seigyou" = "Fake Seigyou";
+"Follow OS settings" = "Follow OS settings";
+"for cycling candidates" = "for cycling candidates";
+"for cycling pages" = "for cycling pages";
+"General" = "General";
+"Hanyu Pinyin with Numeral Intonation" = "Hanyu Pinyin with Numeral Intonation";
+"Horizontal" = "Horizontal";
+"Hsu" = "Hsu";
+"IBM" = "IBM";
+"Japanese" = "Japanese";
+"Keyboard" = "Keyboard";
+"Misc Settings:" = "Misc Settings:";
+"MiTAC" = "MiTAC";
+"Non-QWERTY alphanumeral keyboard layouts are for Hanyu Pinyin parser only." = "Non-QWERTY alphanumeral keyboard layouts are for Hanyu Pinyin parser only.";
+"Output Settings:" = "Output Settings:";
+"Phonetic Parser:" = "Phonetic Parser:";
+"Push the cursor to the front of the phrase after selection" = "Push the cursor to the front of the phrase after selection";
+"Selection Keys:" = "Selection Keys:";
+"Show page buttons in candidate window" = "Show page buttons in candidate window";
+"Simplified Chinese" = "Simplified Chinese";
+"Space & ESC Key:" = "Space & ESC Key:";
+"Space to +cycle candidates, Shift+Space to +cycle pages" = "Space to +cycle candidates, Shift+Space to +cycle pages";
+"Space to +cycle pages, Shift+Space to +cycle candidates" = "Space to +cycle pages, Shift+Space to +cycle candidates";
+"Stop farting (when typed phonetic combination is invalid, etc.)" = "Stop farting (when typed phonetic combination is invalid, etc.)";
+"to the front of the phrase (like Matsushita Hanin IME)" = "to the front of the phrase (like Matsushita Hanin IME)";
+"to the rear of the phrase (like MS New-Phonetic IME)" = "to the rear of the phrase (like MS New-Phonetic IME)";
+"Traditional Chinese" = "Traditional Chinese";
+"Typing Style:" = "Typing Style:";
+"UI Language:" = "UI Language:";
+"Use ESC key to clear the entire input buffer" = "Use ESC key to clear the entire input buffer";
+"Vertical" = "Vertical";

Source/Resources/ja.lproj/Localizable.strings

@@ -73,3 +73,71 @@
 "catDoubleTableLines" = "双線";
 "catFillingBlocks" = "ブロック";
 "catLineSegments" = "線分";
+
+// SwiftUI Preferences
+"(Shift+)Space:" = "(Shift+)Space:";
+"An accomodation for elder computer users." = "年配なるユーザーのために提供した機能である。";
+"Apple ABC (equivalent to English US)" = "Apple ABC (Apple U.S. キーボードと同じ)";
+"Apple Chewing - Dachen" = "Apple 大千注音キーボード";
+"Apple Chewing - Eten Traditional" = "Apple 倚天傳統キーボード";
+"Apple Dynamic Bopomofo Basic Keyboard Layouts (Dachen & Eten Traditional) must match the Dachen parser in order to be functional." = "Apple 動態注音キーボード (大千と倚天伝統) を使うには、共通語分析器の配列を大千と設定すべきである。";
+"Auto-convert traditional Chinese glyphs to JIS Shinjitai characters" = "入力した繁体字を日文 JIS 新字体と自動変換";
+"Auto-convert traditional Chinese glyphs to KangXi characters" = "入力した繁体字を康熙字体と自動変換";
+"Automatically reload user data files if changes detected" = "ユーザー辞書データの変更を自動検出し、自動的に再読込";
+"Basic Keyboard Layout:" = "基礎キーボード:";
+"Candidate Layout:" = "入力候補陳列の仕様";
+"Candidate Size:" = "候補文字の字号:";
+"Change user interface language (will reboot the IME)." = "アプリ表示用言語をご指定下さい、そして入力アプリは自動的に再起動。";
+"Check for updates automatically" = "アプリの更新通知を受く";
+"Choose candidate font size for better visual clarity." = "入力候補陳列の候補文字の字号をご指定ください。";
+"Choose or hit Enter to confim your prefered keys for selecting candidates." = "お好きなる言選り用キー陣列をご指定ください。新しい組み合わせは Enter で効かす。";
+"Choose the behavior of (Shift+)Space key in the candidate window." = "入力候補陳列での (Shift+)Space キーの輪番切替対象をご指定ください。";
+"Choose the behavior of (Shift+)Tab key in the candidate window." = "入力候補陳列での (Shift+)Tab キーの輪番切替対象をご指定ください。";
+"Choose the cursor position where you want to list possible candidates." = "カーソルはどこで入力候補を呼び出すかとご指定ださい。";
+"Choose the macOS-level basic keyboard layout." = "macOS 基礎キーボード配置をご指定ください。";
+"Choose the phonetic layout for Mandarin parser." = "共通語分析器の注音配列をご指定ください。";
+"Choose your desired user data folder path. Will be omitted if invalid." = "欲しがるユーザー辞書保存先をご指定ください。無効なる保存先設定は省かれる。";
+"Choose your preferred layout of the candidate window." = "入力候補陳列の仕様をご指定ください。";
+"Cursor Selection:" = "カーソル候補呼出:";
+"Dachen (Microsoft Standard / Wang / 01, etc.)" = "大千配列 (Microsoft 標準・王安・零壹など)";
+"Debug Mode" = "欠陥辿着モード";
+"Dictionary" = "辞書設定";
+"Emulating select-candidate-per-character mode" = "漢字１つづつ全候補選択入力モード";
+"Enable CNS11643 Support (2022-01-27)" = "全字庫モード // 入力可能な漢字数を倍増す (2022-01-07)";
+"Enable Space key for calling candidate window" = "Space キーで入力候補を呼び出す";
+"Enable symbol input support (incl. certain emoji symbols)" = "僅かなる絵文字も含む符号入力サポートを起用";
+"English" = "英語";
+"Eten 26" = "倚天形忘れ配列 (26 キー)";
+"Eten Traditional" = "倚天伝統配列";
+"Experience" = "体験設定";
+"Fake Seigyou" = "偽精業配列";
+"Follow OS settings" = "システム設定に準ず";
+"for cycling candidates" = "候補文字そのもの";
+"for cycling pages" = "候補陳列ページ";
+"General" = "全般設定";
+"Hanyu Pinyin with Numeral Intonation" = "漢語弁音 (ローマ字+数字音調)";
+"Horizontal" = "横型陳列";
+"Hsu" = "許氏国音自然配列";
+"IBM" = "IBM 配列";
+"Japanese" = "和語";
+"Keyboard" = "配列設定";
+"Misc Settings:" = "他の設定:";
+"MiTAC" = "神通配列";
+"Non-QWERTY alphanumeral keyboard layouts are for Hanyu Pinyin parser only." = "QWERTY 以外の英数キーボードは漢語弁音以外の配列に不適用。";
+"Output Settings:" = "出力設定:";
+"Phonetic Parser:" = "注音配列:";
+"Push the cursor to the front of the phrase after selection" = "候補選択の直後、すぐカーソルを単語の向こうに推し進める";
+"Selection Keys:" = "言選り用キー:";
+"Show page buttons in candidate window" = "入力候補陳列の側にページボタンを表示";
+"Simplified Chinese" = "簡体中国語";
+"Space & ESC Key:" = "ESC と Space:";
+"Space to +cycle candidates, Shift+Space to +cycle pages" = "Shift+Space で次のページ、Space で次の候補文字を";
+"Space to +cycle pages, Shift+Space to +cycle candidates" = "Space で次のページ、Shift+Space で次の候補文字を";
+"Stop farting (when typed phonetic combination is invalid, etc.)" = "マナーモード // 外すと入力間違った時に変な声が出る";
+"to the front of the phrase (like Matsushita Hanin IME)" = "単語の前で // パナソニック漢音のやり方";
+"to the rear of the phrase (like MS New-Phonetic IME)" = "単語の後で // Microsoft 新注音のやり方";
+"Traditional Chinese" = "繁体中国語";
+"Typing Style:" = "入力習慣:";
+"UI Language:" = "表示用言語:";
+"Use ESC key to clear the entire input buffer" = "ESC キーで入力緩衝列を消す";
+"Vertical" = "縦型陳列";

Source/Resources/zh-Hans.lproj/Localizable.strings

@@ -73,3 +73,71 @@
 "catDoubleTableLines" = "双线";
 "catFillingBlocks" = "填色";
 "catLineSegments" = "线段";
+
+// SwiftUI Preferences
+"(Shift+)Space:" = "(Shift+)空格键:";
+"An accomodation for elder computer users." = "针对年长使用者的习惯而提供。";
+"Apple ABC (equivalent to English US)" = "Apple ABC (与 Apple 美规键盘等价)";
+"Apple Chewing - Dachen" = "Apple 大千注音键盘配列";
+"Apple Chewing - Eten Traditional" = "Apple 倚天传统键盘配列";
+"Apple Dynamic Bopomofo Basic Keyboard Layouts (Dachen & Eten Traditional) must match the Dachen parser in order to be functional." = "Apple 动态注音键盘布局（大千与倚天）要求普通话/国音分析器得配置为大千配列。";
+"Auto-convert traditional Chinese glyphs to JIS Shinjitai characters" = "自动将繁体中文字转为日文 JIS 新字体";
+"Auto-convert traditional Chinese glyphs to KangXi characters" = "自动将繁体中文字转为康熙字";
+"Automatically reload user data files if changes detected" = "自动检测并载入使用者语汇档案变更";
+"Basic Keyboard Layout:" = "基础键盘布局:";
+"Candidate Layout:" = "候选字窗布局:";
+"Candidate Size:" = "候选字窗字号:";
+"Change user interface language (will reboot the IME)." = "变更输入法介面语言，会自动重启输入法。";
+"Check for updates automatically" = "自动检查软体更新";
+"Choose candidate font size for better visual clarity." = "变更候选字窗的字型大小。";
+"Choose or hit Enter to confim your prefered keys for selecting candidates." = "请选择您所偏好的用来选字的按键组合。自订组合需敲 Enter 键生效。";
+"Choose the behavior of (Shift+)Space key in the candidate window." = "指定 (Shift+)空格键 在选字窗内的轮替操作对象。";
+"Choose the behavior of (Shift+)Tab key in the candidate window." = "指定 (Shift+)Tab 在选字窗内的轮替操作对象。";
+"Choose the cursor position where you want to list possible candidates." = "请选择用以触发选字的游标相对位置。";
+"Choose the macOS-level basic keyboard layout." = "请选择 macOS 基础键盘布局。";
+"Choose the phonetic layout for Mandarin parser." = "请指定普通话/国音分析器所使用的注音配列。";
+"Choose your desired user data folder path. Will be omitted if invalid." = "请在此指定您想指定的使用者语汇档案目录。无效值会被忽略。";
+"Choose your preferred layout of the candidate window." = "选择您所偏好的候选字窗布局。";
+"Cursor Selection:" = "选字游标:";
+"Dachen (Microsoft Standard / Wang / 01, etc.)" = "大千配列 (微软标准/王安/零壹/仲鼎/国乔)";
+"Debug Mode" = "侦错模式";
+"Dictionary" = "辞典";
+"Emulating select-candidate-per-character mode" = "模拟 90 年代前期注音逐字选字输入风格";
+"Enable CNS11643 Support (2022-01-27)" = "启用 CNS11643 全字库支援 (2022-01-07)";
+"Enable Space key for calling candidate window" = "敲空格键以呼出候选字窗";
+"Enable symbol input support (incl. certain emoji symbols)" = "启用包括少许绘文字在内的符号输入支援";
+"English" = "英语";
+"Eten 26" = "倚天忘形配列 (26 键)";
+"Eten Traditional" = "倚天传统配列";
+"Experience" = "体验";
+"Fake Seigyou" = "伪精业配列";
+"Follow OS settings" = "依系统设定";
+"for cycling candidates" = "轮替候选字";
+"for cycling pages" = "轮替页面";
+"General" = "通用";
+"Hanyu Pinyin with Numeral Intonation" = "汉语拼音+数字标调";
+"Horizontal" = "横向布局";
+"Hsu" = "许氏国音自然配列";
+"IBM" = "IBM 配列";
+"Japanese" = "和语";
+"Keyboard" = "键盘";
+"Misc Settings:" = "杂项:";
+"MiTAC" = "神通配列";
+"Non-QWERTY alphanumeral keyboard layouts are for Hanyu Pinyin parser only." = "QWERTY 以外的英数布局是为了汉语拼音配列使用者而准备的。";
+"Output Settings:" = "输出设定:";
+"Phonetic Parser:" = "注音配列:";
+"Push the cursor to the front of the phrase after selection" = "在选字后将游标置于该字词的前方";
+"Selection Keys:" = "选字键:";
+"Show page buttons in candidate window" = "在选字窗内显示翻页按钮";
+"Simplified Chinese" = "简体中文";
+"Space & ESC Key:" = "ESC 与空格键:";
+"Space to +cycle candidates, Shift+Space to +cycle pages" = "Shift+空格键 换下一页，空格键 换选下一个后选字";
+"Space to +cycle pages, Shift+Space to +cycle candidates" = "空格键 换下一页，Shift+空格键 换选下一个后选字";
+"Stop farting (when typed phonetic combination is invalid, etc.)" = "不要放屁 // 例：当输入的音韵有误时，等";
+"to the front of the phrase (like Matsushita Hanin IME)" = "将游标置于词语前方 // 松下汉音风格";
+"to the rear of the phrase (like MS New-Phonetic IME)" = "将游标置于词语后方 // 微软新注音风格";
+"Traditional Chinese" = "繁体中文";
+"Typing Style:" = "输入风格:";
+"UI Language:" = "介面语言:";
+"Use ESC key to clear the entire input buffer" = "敲 ESC 键以清空整个组字缓冲区";
+"Vertical" = "纵向布局";

Source/Resources/zh-Hant.lproj/Localizable.strings

@@ -73,3 +73,71 @@
 "catDoubleTableLines" = "雙線";
 "catFillingBlocks" = "填色";
 "catLineSegments" = "線段";
+
+// SwiftUI Preferences
+"(Shift+)Space:" = "(Shift+)空格鍵:";
+"An accomodation for elder computer users." = "針對年長使用者的習慣而提供。";
+"Apple ABC (equivalent to English US)" = "Apple ABC (與 Apple 美規鍵盤等價)";
+"Apple Chewing - Dachen" = "Apple 大千注音鍵盤佈局";
+"Apple Chewing - Eten Traditional" = "Apple 倚天傳統鍵盤佈局";
+"Apple Dynamic Bopomofo Basic Keyboard Layouts (Dachen & Eten Traditional) must match the Dachen parser in order to be functional." = "Apple 動態注音鍵盤佈局（大千與倚天）要求普通話/國音分析器得配置為大千配列。";
+"Auto-convert traditional Chinese glyphs to JIS Shinjitai characters" = "自動將繁體中文字轉為日文 JIS 新字體";
+"Auto-convert traditional Chinese glyphs to KangXi characters" = "自動將繁體中文字轉為康熙字";
+"Automatically reload user data files if changes detected" = "自動檢測並載入使用者語彙檔案變更";
+"Basic Keyboard Layout:" = "基礎鍵盤佈局:";
+"Candidate Layout:" = "候選字窗佈局:";
+"Candidate Size:" = "候選字窗字號:";
+"Change user interface language (will reboot the IME)." = "變更輸入法介面語言，會自動重啟輸入法。";
+"Check for updates automatically" = "自動檢查軟體更新";
+"Choose candidate font size for better visual clarity." = "變更候選字窗的字型大小。";
+"Choose or hit Enter to confim your prefered keys for selecting candidates." = "請選擇您所偏好的用來選字的按鍵組合。自訂組合需敲 Enter 鍵生效。";
+"Choose the behavior of (Shift+)Space key in the candidate window." = "指定 (Shift+)空格鍵 在選字窗內的輪替操作對象。";
+"Choose the behavior of (Shift+)Tab key in the candidate window." = "指定 (Shift+)Tab 在選字窗內的輪替操作對象。";
+"Choose the cursor position where you want to list possible candidates." = "請選擇用以觸發選字的游標相對位置。";
+"Choose the macOS-level basic keyboard layout." = "請選擇 macOS 基礎鍵盤佈局。";
+"Choose the phonetic layout for Mandarin parser." = "請指定普通話/國音分析器所使用的注音配列。";
+"Choose your desired user data folder path. Will be omitted if invalid." = "請在此指定您想指定的使用者語彙檔案目錄。無效值會被忽略。";
+"Choose your preferred layout of the candidate window." = "選擇您所偏好的候選字窗佈局。";
+"Cursor Selection:" = "選字游標:";
+"Dachen (Microsoft Standard / Wang / 01, etc.)" = "大千配列 (微軟標準/王安/零壹/仲鼎/國喬)";
+"Debug Mode" = "偵錯模式";
+"Dictionary" = "辭典";
+"Emulating select-candidate-per-character mode" = "模擬 90 年代前期注音逐字選字輸入風格";
+"Enable CNS11643 Support (2022-01-27)" = "啟用 CNS11643 全字庫支援 (2022-01-07)";
+"Enable Space key for calling candidate window" = "敲空格鍵以呼出候選字窗";
+"Enable symbol input support (incl. certain emoji symbols)" = "啟用包括少許繪文字在內的符號輸入支援";
+"English" = "英語";
+"Eten 26" = "倚天忘形配列 (26 鍵)";
+"Eten Traditional" = "倚天傳統配列";
+"Experience" = "體驗";
+"Fake Seigyou" = "偽精業配列";
+"Follow OS settings" = "依系統設定";
+"for cycling candidates" = "輪替候選字";
+"for cycling pages" = "輪替頁面";
+"General" = "通用";
+"Hanyu Pinyin with Numeral Intonation" = "漢語拼音+數字標調";
+"Horizontal" = "橫向佈局";
+"Hsu" = "許氏國音自然配列";
+"IBM" = "IBM 配列";
+"Japanese" = "和語";
+"Keyboard" = "鍵盤";
+"Misc Settings:" = "雜項:";
+"MiTAC" = "神通配列";
+"Non-QWERTY alphanumeral keyboard layouts are for Hanyu Pinyin parser only." = "QWERTY 以外的英數佈局是為了漢語拼音配列使用者而準備的。";
+"Output Settings:" = "輸出設定:";
+"Phonetic Parser:" = "注音配列:";
+"Push the cursor to the front of the phrase after selection" = "在選字後將游標置於該字詞的前方";
+"Selection Keys:" = "選字鍵:";
+"Show page buttons in candidate window" = "在選字窗內顯示翻頁按鈕";
+"Simplified Chinese" = "簡體中文";
+"Space & ESC Key:" = "ESC 與空格鍵:";
+"Space to +cycle candidates, Shift+Space to +cycle pages" = "Shift+空格鍵 換下一頁，空格鍵 換選下一個後選字";
+"Space to +cycle pages, Shift+Space to +cycle candidates" = "空格鍵 換下一頁，Shift+空格鍵 換選下一個後選字";
+"Stop farting (when typed phonetic combination is invalid, etc.)" = "不要放屁 // 例：當輸入的音韻有誤時，等";
+"to the front of the phrase (like Matsushita Hanin IME)" = "將游標置於詞語前方 // 松下漢音風格";
+"to the rear of the phrase (like MS New-Phonetic IME)" = "將游標置於詞語後方 // 微軟新注音風格";
+"Traditional Chinese" = "繁體中文";
+"Typing Style:" = "輸入風格:";
+"UI Language:" = "介面語言:";
+"Use ESC key to clear the entire input buffer" = "敲 ESC 鍵以清空整個組字緩衝區";
+"Vertical" = "縱向佈局";

Source/UI/CandidateUI/ctlCandidateHorizontal.swift

@@ -435,10 +435,9 @@ extension ctlCandidateHorizontal {
 
 		frameRect = window?.frame ?? NSRect.zero
 
-		let topLeftPoint = NSMakePoint(
+		let topLeftPoint = NSPoint(x: frameRect.origin.x, y: frameRect.origin.y + frameRect.size.height)
-			frameRect.origin.x, frameRect.origin.y + frameRect.size.height)
 		frameRect.size = newSize
-		frameRect.origin = NSMakePoint(topLeftPoint.x, topLeftPoint.y - frameRect.size.height)
+		frameRect.origin = NSPoint(x: topLeftPoint.x, y: topLeftPoint.y - frameRect.size.height)
 		self.window?.setFrame(frameRect, display: false)
 		candidateView.setNeedsDisplay(candidateView.bounds)
 	}

Source/UI/CandidateUI/ctlCandidateVertical.swift

@@ -440,10 +440,9 @@ extension ctlCandidateVertical {
 
 		frameRect = window?.frame ?? NSRect.zero
 
-		let topLeftPoint = NSMakePoint(
+		let topLeftPoint = NSPoint(x: frameRect.origin.x, y: frameRect.origin.y + frameRect.size.height)
-			frameRect.origin.x, frameRect.origin.y + frameRect.size.height)
 		frameRect.size = newSize
-		frameRect.origin = NSMakePoint(topLeftPoint.x, topLeftPoint.y - frameRect.size.height)
+		frameRect.origin = NSPoint(x: topLeftPoint.x, y: topLeftPoint.y - frameRect.size.height)
 		self.window?.setFrame(frameRect, display: false)
 		candidateView.setNeedsDisplay(candidateView.bounds)
 	}

Source/UI/NotifierUI/NotifierController.swift

@@ -1,5 +1,6 @@
 // Copyright (c) 2021 and onwards Weizhong Yang (MIT License).
-// All possible vChewing-specific modifications are (c) 2021 and onwards The vChewing Project (MIT-NTL License).
+// All possible vChewing-specific modifications are of:
+// (c) 2021 and onwards The vChewing Project (MIT-NTL License).
 /*
 Permission is hereby granted, free of charge, to any person obtaining a copy of
 this software and associated documentation files (the "Software"), to deal in
@@ -123,7 +124,7 @@ public class NotifierController: NSWindowController, NotifierWindowDelegate {
 		panel.titlebarAppearsTransparent = true
 		panel.titleVisibility = .hidden
 		panel.showsToolbarButton = false
-		panel.standardWindowButton(NSWindow.ButtonType.fullScreenButton)?.isHidden = true
+		panel.standardWindowButton(NSWindow.ButtonType.zoomButton)?.isHidden = true
 		panel.standardWindowButton(NSWindow.ButtonType.miniaturizeButton)?.isHidden = true
 		panel.standardWindowButton(NSWindow.ButtonType.closeButton)?.isHidden = true
 		panel.standardWindowButton(NSWindow.ButtonType.zoomButton)?.isHidden = true

Source/UI/PrefUI/ctlPrefUI.swift

@@ -0,0 +1,71 @@
+// Copyright (c) 2021 and onwards The vChewing Project (MIT-NTL License).
+/*
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+1. The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+2. No trademark license is granted to use the trade names, trademarks, service
+marks, or product names of Contributor, except as required to fulfill notice
+requirements above.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+
+import Cocoa
+
+@available(macOS 11.0, *)
+class ctlPrefUI {
+	lazy var controller = PreferencesWindowController(
+		panes: [
+			Preferences.Pane(
+				identifier: Preferences.PaneIdentifier(rawValue: "General"),
+				title: NSLocalizedString("General", comment: ""),
+				toolbarIcon: NSImage(
+					systemSymbolName: "wrench.and.screwdriver.fill", accessibilityDescription: "General Preferences")
+					?? NSImage(named: NSImage.homeTemplateName)!
+			) {
+				suiPrefPaneGeneral()
+			},
+			Preferences.Pane(
+				identifier: Preferences.PaneIdentifier(rawValue: "Experiences"),
+				title: NSLocalizedString("Experience", comment: ""),
+				toolbarIcon: NSImage(
+					systemSymbolName: "person.fill.questionmark", accessibilityDescription: "Experiences Preferences")
+					?? NSImage(named: NSImage.listViewTemplateName)!
+			) {
+				suiPrefPaneExperience()
+			},
+			Preferences.Pane(
+				identifier: Preferences.PaneIdentifier(rawValue: "Dictionary"),
+				title: NSLocalizedString("Dictionary", comment: ""),
+				toolbarIcon: NSImage(
+					systemSymbolName: "character.book.closed.fill", accessibilityDescription: "Dictionary Preferences")
+					?? NSImage(named: NSImage.bookmarksTemplateName)!
+			) {
+				suiPrefPaneDictionary()
+			},
+			Preferences.Pane(
+				identifier: Preferences.PaneIdentifier(rawValue: "Keyboard"),
+				title: NSLocalizedString("Keyboard", comment: ""),
+				toolbarIcon: NSImage(
+					systemSymbolName: "keyboard.macwindow", accessibilityDescription: "Keyboard Preferences")
+					?? NSImage(named: NSImage.actionTemplateName)!
+			) {
+				suiPrefPaneKeyboard()
+			},
+		],
+		style: .toolbarItems
+	)
+	static let shared = ctlPrefUI()
+}

Source/UI/PrefUI/suiPrefPaneDictionary.swift

@@ -0,0 +1,137 @@
+// Copyright (c) 2021 and onwards The vChewing Project (MIT-NTL License).
+/*
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+1. The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+2. No trademark license is granted to use the trade names, trademarks, service
+marks, or product names of Contributor, except as required to fulfill notice
+requirements above.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+
+import SwiftUI
+
+@available(macOS 11.0, *)
+struct suiPrefPaneDictionary: View {
+	private var fdrDefault = mgrLangModel.dataFolderPath(isDefaultFolder: true)
+	@State private var tbxUserDataPathSpecified: String =
+		UserDefaults.standard.string(forKey: UserDef.kUserDataFolderSpecified)
+		?? mgrLangModel.dataFolderPath(isDefaultFolder: true)
+	@State private var selAutoReloadUserData: Bool = UserDefaults.standard.bool(
+		forKey: UserDef.kShouldAutoReloadUserDataFiles)
+	@State private var selEnableCNS11643: Bool = UserDefaults.standard.bool(forKey: UserDef.kCNS11643Enabled)
+	@State private var selEnableSymbolInputSupport: Bool = UserDefaults.standard.bool(
+		forKey: UserDef.kSymbolInputEnabled)
+	private let contentWidth: Double = {
+		switch mgrPrefs.appleLanguages[0] {
+			case "ja":
+				return 520
+			default:
+				if mgrPrefs.appleLanguages[0].contains("zh-Han") {
+					return 480
+				} else {
+					return 550
+				}
+		}
+	}()
+
+	var body: some View {
+		Preferences.Container(contentWidth: contentWidth) {
+			Preferences.Section(title: "", bottomDivider: true) {
+				Text(LocalizedStringKey("Choose your desired user data folder path. Will be omitted if invalid."))
+				HStack {
+					TextField(fdrDefault, text: $tbxUserDataPathSpecified).disabled(true)
+						.help(tbxUserDataPathSpecified)
+					Button {
+						IME.dlgOpenPath.title = NSLocalizedString(
+							"Choose your desired user data folder.", comment: "")
+						IME.dlgOpenPath.showsResizeIndicator = true
+						IME.dlgOpenPath.showsHiddenFiles = true
+						IME.dlgOpenPath.canChooseFiles = false
+						IME.dlgOpenPath.canChooseDirectories = true
+
+						let bolPreviousFolderValidity = mgrLangModel.checkIfSpecifiedUserDataFolderValid(
+							NSString(string: mgrPrefs.userDataFolderSpecified).expandingTildeInPath)
+
+						if let window = ctlPrefUI.shared.controller.window {
+							IME.dlgOpenPath.beginSheetModal(for: window) { result in
+								if result == NSApplication.ModalResponse.OK {
+									if IME.dlgOpenPath.url != nil {
+										// CommonDialog 讀入的路徑沒有結尾斜槓，這會導致檔案目錄合規性判定失準。
+										// 所以要手動補回來。
+										var newPath = IME.dlgOpenPath.url!.path
+										newPath.ensureTrailingSlash()
+										if mgrLangModel.checkIfSpecifiedUserDataFolderValid(newPath) {
+											mgrPrefs.userDataFolderSpecified = newPath
+											tbxUserDataPathSpecified = mgrPrefs.userDataFolderSpecified
+											IME.initLangModels(userOnly: true)
+										} else {
+											clsSFX.beep()
+											if !bolPreviousFolderValidity {
+												mgrPrefs.resetSpecifiedUserDataFolder()
+											}
+											return
+										}
+									}
+								} else {
+									if !bolPreviousFolderValidity {
+										mgrPrefs.resetSpecifiedUserDataFolder()
+									}
+									return
+								}
+							}
+						}  // End If self.window != nil
+					} label: {
+						Text("...")
+					}
+					Button {
+						mgrPrefs.resetSpecifiedUserDataFolder()
+						tbxUserDataPathSpecified = ""
+					} label: {
+						Text("↻")
+					}
+
+				}
+				Toggle(
+					LocalizedStringKey("Automatically reload user data files if changes detected"),
+					isOn: $selAutoReloadUserData
+				).controlSize(.small).onChange(of: selAutoReloadUserData) { (value) in
+					mgrPrefs.shouldAutoReloadUserDataFiles = value
+				}
+				Divider()
+				Toggle(LocalizedStringKey("Enable CNS11643 Support (2022-01-27)"), isOn: $selEnableCNS11643)
+					.onChange(of: selEnableCNS11643) { (value) in
+						mgrPrefs.cns11643Enabled = value
+					}
+				Toggle(
+					LocalizedStringKey("Enable symbol input support (incl. certain emoji symbols)"),
+					isOn: $selEnableSymbolInputSupport
+				)
+				.onChange(of: selEnableSymbolInputSupport) { (value) in
+					mgrPrefs.symbolInputEnabled = value
+				}
+
+			}
+		}
+	}
+}
+
+@available(macOS 11.0, *)
+struct suiPrefPaneDictionary_Previews: PreviewProvider {
+	static var previews: some View {
+		suiPrefPaneDictionary()
+	}
+}

Source/UI/PrefUI/suiPrefPaneExperience.swift

@@ -0,0 +1,166 @@
+// Copyright (c) 2021 and onwards The vChewing Project (MIT-NTL License).
+/*
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+1. The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+2. No trademark license is granted to use the trade names, trademarks, service
+marks, or product names of Contributor, except as required to fulfill notice
+requirements above.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+
+import Cocoa
+import SwiftUI
+
+@available(macOS 11.0, *)
+struct suiPrefPaneExperience: View {
+	@State private var selSelectionKeysList = mgrPrefs.suggestedCandidateKeys
+	@State private var selSelectionKeys =
+		(UserDefaults.standard.string(forKey: UserDef.kCandidateKeys) ?? mgrPrefs.defaultCandidateKeys) as String
+	@State private var selCursorPosition =
+		UserDefaults.standard.bool(
+			forKey: UserDef.kSelectPhraseAfterCursorAsCandidate) ? 1 : 0
+	@State private var selPushCursorAfterSelection = UserDefaults.standard.bool(
+		forKey: UserDef.kMoveCursorAfterSelectingCandidate)
+	@State private var selKeyBehaviorShiftTab =
+		UserDefaults.standard.bool(forKey: UserDef.kSpecifyShiftTabKeyBehavior) ? 1 : 0
+	@State private var selKeyBehaviorShiftSpace =
+		UserDefaults.standard.bool(
+			forKey: UserDef.kSpecifyShiftSpaceKeyBehavior) ? 1 : 0
+	@State private var selKeyBehaviorSpaceForCallingCandidate = UserDefaults.standard.bool(
+		forKey: UserDef.kChooseCandidateUsingSpace)
+	@State private var selKeyBehaviorESCForClearingTheBuffer = UserDefaults.standard.bool(
+		forKey: UserDef.kEscToCleanInputBuffer)
+	@State private var selEnableSCPCTypingMode = UserDefaults.standard.bool(forKey: UserDef.kUseSCPCTypingMode)
+	private let contentWidth: Double = {
+		switch mgrPrefs.appleLanguages[0] {
+			case "ja":
+				return 520
+			default:
+				if mgrPrefs.appleLanguages[0].contains("zh-Han") {
+					return 480
+				} else {
+					return 550
+				}
+		}
+	}()
+
+	var body: some View {
+		Preferences.Container(contentWidth: contentWidth) {
+			Preferences.Section(bottomDivider: true, label: { Text(LocalizedStringKey("Selection Keys:")) }) {
+				ComboBox(items: mgrPrefs.suggestedCandidateKeys, text: $selSelectionKeys).frame(width: 180).onChange(
+					of: selSelectionKeys
+				) { (value) in
+					let keys: String = (value.trimmingCharacters(in: .whitespacesAndNewlines) as String).charDeDuplicate
+					do {
+						try mgrPrefs.validate(candidateKeys: keys)
+						mgrPrefs.candidateKeys = keys
+						selSelectionKeys = mgrPrefs.candidateKeys
+					} catch mgrPrefs.CandidateKeyError.empty {
+						selSelectionKeys = mgrPrefs.candidateKeys
+					} catch {
+						if let window = ctlPrefUI.shared.controller.window {
+							let alert = NSAlert(error: error)
+							alert.beginSheetModal(for: window) { _ in
+								selSelectionKeys = mgrPrefs.candidateKeys
+							}
+							clsSFX.beep()
+						}
+					}
+				}
+				Text(
+					LocalizedStringKey(
+						"Choose or hit Enter to confim your prefered keys for selecting candidates."
+					)
+				)
+				.preferenceDescription()
+			}
+			Preferences.Section(bottomDivider: true, label: { Text(LocalizedStringKey("Cursor Selection:")) }) {
+				Picker("", selection: $selCursorPosition) {
+					Text(LocalizedStringKey("to the front of the phrase (like Matsushita Hanin IME)")).tag(0)
+					Text(LocalizedStringKey("to the rear of the phrase (like MS New-Phonetic IME)")).tag(1)
+				}.onChange(of: selCursorPosition) { (value) in
+					mgrPrefs.selectPhraseAfterCursorAsCandidate = (value == 1) ? true : false
+				}
+				.labelsHidden()
+				.pickerStyle(RadioGroupPickerStyle())
+				Text(LocalizedStringKey("Choose the cursor position where you want to list possible candidates."))
+					.preferenceDescription()
+				Toggle(
+					LocalizedStringKey("Push the cursor to the front of the phrase after selection"),
+					isOn: $selPushCursorAfterSelection
+				).onChange(of: selPushCursorAfterSelection) { (value) in
+					mgrPrefs.moveCursorAfterSelectingCandidate = value
+				}.controlSize(.small)
+			}
+			Preferences.Section(title: "(Shift+)Tab:", bottomDivider: true) {
+				Picker("", selection: $selKeyBehaviorShiftTab) {
+					Text(LocalizedStringKey("for cycling candidates")).tag(0)
+					Text(LocalizedStringKey("for cycling pages")).tag(1)
+				}.onChange(of: selKeyBehaviorShiftTab) { (value) in
+					mgrPrefs.specifyShiftTabKeyBehavior = (value == 1) ? true : false
+				}
+				.labelsHidden()
+				.horizontalRadioGroupLayout()
+				.pickerStyle(RadioGroupPickerStyle())
+				Text(LocalizedStringKey("Choose the behavior of (Shift+)Tab key in the candidate window."))
+					.preferenceDescription()
+			}
+			Preferences.Section(bottomDivider: true, label: { Text(LocalizedStringKey("(Shift+)Space:")) }) {
+				Picker("", selection: $selKeyBehaviorShiftSpace) {
+					Text(LocalizedStringKey("Space to +cycle candidates, Shift+Space to +cycle pages")).tag(0)
+					Text(LocalizedStringKey("Space to +cycle pages, Shift+Space to +cycle candidates")).tag(1)
+				}.onChange(of: selKeyBehaviorShiftSpace) { (value) in
+					mgrPrefs.specifyShiftSpaceKeyBehavior = (value == 1) ? true : false
+				}
+				.labelsHidden()
+				.pickerStyle(RadioGroupPickerStyle())
+				Text(LocalizedStringKey("Choose the behavior of (Shift+)Space key in the candidate window."))
+					.preferenceDescription()
+			}
+			Preferences.Section(bottomDivider: true, label: { Text(LocalizedStringKey("Space & ESC Key:")) }) {
+				Toggle(
+					LocalizedStringKey("Enable Space key for calling candidate window"),
+					isOn: $selKeyBehaviorSpaceForCallingCandidate
+				).onChange(of: selKeyBehaviorSpaceForCallingCandidate) { (value) in
+					mgrPrefs.chooseCandidateUsingSpace = value
+				}
+				Toggle(
+					LocalizedStringKey("Use ESC key to clear the entire input buffer"),
+					isOn: $selKeyBehaviorESCForClearingTheBuffer
+				).onChange(of: selKeyBehaviorESCForClearingTheBuffer) { (value) in
+					mgrPrefs.escToCleanInputBuffer = value
+				}
+			}
+			Preferences.Section(label: { Text(LocalizedStringKey("Typing Style:")) }) {
+				Toggle(
+					LocalizedStringKey("Emulating select-candidate-per-character mode"), isOn: $selEnableSCPCTypingMode
+				).onChange(of: selEnableSCPCTypingMode) { (value) in
+					mgrPrefs.useSCPCTypingMode = value
+				}
+				Text(LocalizedStringKey("An accomodation for elder computer users."))
+					.preferenceDescription()
+			}
+		}
+	}
+}
+
+@available(macOS 11.0, *)
+struct suiPrefPaneExperience_Previews: PreviewProvider {
+	static var previews: some View {
+		suiPrefPaneExperience()
+	}
+}

Source/UI/PrefUI/suiPrefPaneGeneral.swift

@@ -0,0 +1,168 @@
+// Copyright (c) 2021 and onwards The vChewing Project (MIT-NTL License).
+/*
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+1. The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+2. No trademark license is granted to use the trade names, trademarks, service
+marks, or product names of Contributor, except as required to fulfill notice
+requirements above.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+
+import Cocoa
+import SwiftUI
+
+@available(macOS 11.0, *)
+struct suiPrefPaneGeneral: View {
+	@State private var selCandidateUIFontSize = UserDefaults.standard.integer(forKey: UserDef.kCandidateListTextSize)
+	@State private var selUILanguage: [String] =
+		IME.arrSupportedLocales.contains(
+			((UserDefaults.standard.object(forKey: UserDef.kAppleLanguages) == nil)
+				? ["auto"] : UserDefaults.standard.array(forKey: UserDef.kAppleLanguages) as? [String] ?? ["auto"])[0])
+		? ((UserDefaults.standard.object(forKey: UserDef.kAppleLanguages) == nil)
+			? ["auto"] : UserDefaults.standard.array(forKey: UserDef.kAppleLanguages) as? [String] ?? ["auto"])
+		: ["auto"]
+	@State private var selEnableHorizontalCandidateLayout = UserDefaults.standard.bool(
+		forKey: UserDef.kUseHorizontalCandidateList)
+	@State private var selShowPageButtonsInCandidateUI = UserDefaults.standard.bool(
+		forKey: UserDef.kShowPageButtonsInCandidateWindow)
+	@State private var selEnableKanjiConvToKangXi = UserDefaults.standard.bool(
+		forKey: UserDef.kChineseConversionEnabled)
+	@State private var selEnableKanjiConvToJIS = UserDefaults.standard.bool(
+		forKey: UserDef.kShiftJISShinjitaiOutputEnabled)
+	@State private var selEnableFartSuppressor = UserDefaults.standard.bool(forKey: UserDef.kShouldNotFartInLieuOfBeep)
+	@State private var selEnableAutoUpdateCheck = UserDefaults.standard.bool(forKey: UserDef.kCheckUpdateAutomatically)
+	@State private var selEnableDebugMode = UserDefaults.standard.bool(forKey: UserDef.kIsDebugModeEnabled)
+	private let contentWidth: Double = {
+		switch mgrPrefs.appleLanguages[0] {
+			case "ja":
+				return 465
+			default:
+				if mgrPrefs.appleLanguages[0].contains("zh-Han") {
+					return 450
+				} else {
+					return 550
+				}
+		}
+	}()
+
+	var body: some View {
+		Preferences.Container(contentWidth: contentWidth) {
+			Preferences.Section(bottomDivider: false, label: { Text(LocalizedStringKey("Candidate Size:")) }) {
+				Picker("", selection: $selCandidateUIFontSize) {
+					Text("12").tag(12)
+					Text("14").tag(14)
+					Text("16").tag(16)
+					Text("18").tag(18)
+					Text("24").tag(24)
+					Text("32").tag(32)
+					Text("64").tag(64)
+					Text("96").tag(96)
+				}.onChange(of: selCandidateUIFontSize) { (value) in
+					mgrPrefs.candidateListTextSize = CGFloat(value)
+				}
+				.labelsHidden()
+				.frame(width: 120.0)
+				Text(LocalizedStringKey("Choose candidate font size for better visual clarity."))
+					.preferenceDescription()
+			}
+			Preferences.Section(bottomDivider: false, label: { Text(LocalizedStringKey("UI Language:")) }) {
+				Picker(LocalizedStringKey("Follow OS settings"), selection: $selUILanguage) {
+					Text(LocalizedStringKey("Follow OS settings")).tag(["auto"])
+					Text(LocalizedStringKey("Simplified Chinese")).tag(["zh-Hans"])
+					Text(LocalizedStringKey("Traditional Chinese")).tag(["zh-Hant"])
+					Text(LocalizedStringKey("Japanese")).tag(["ja"])
+					Text(LocalizedStringKey("English")).tag(["en"])
+				}.onChange(of: selUILanguage) { (value) in
+					IME.prtDebugIntel(value[0])
+					if selUILanguage == mgrPrefs.appleLanguages
+						|| (selUILanguage[0] == "auto"
+							&& UserDefaults.standard.object(forKey: UserDef.kAppleLanguages) == nil)
+					{
+						return
+					}
+					if selUILanguage[0] != "auto" {
+						mgrPrefs.appleLanguages = value
+					} else {
+						UserDefaults.standard.removeObject(forKey: UserDef.kAppleLanguages)
+					}
+					NSLog("vChewing App self-terminated due to UI language change.")
+					NSApplication.shared.terminate(nil)
+				}
+				.labelsHidden()
+				.frame(width: 180.0)
+
+				Text(LocalizedStringKey("Change user interface language (will reboot the IME)."))
+					.preferenceDescription()
+			}
+			Preferences.Section(bottomDivider: true, label: { Text(LocalizedStringKey("Candidate Layout:")) }) {
+				Picker("", selection: $selEnableHorizontalCandidateLayout) {
+					Text(LocalizedStringKey("Vertical")).tag(false)
+					Text(LocalizedStringKey("Horizontal")).tag(true)
+				}.onChange(of: selEnableHorizontalCandidateLayout) { (value) in
+					mgrPrefs.useHorizontalCandidateList = value
+				}
+				.labelsHidden()
+				.horizontalRadioGroupLayout()
+				.pickerStyle(RadioGroupPickerStyle())
+				Text(LocalizedStringKey("Choose your preferred layout of the candidate window."))
+					.preferenceDescription()
+				Toggle(
+					LocalizedStringKey("Show page buttons in candidate window"), isOn: $selShowPageButtonsInCandidateUI
+				).controlSize(.small)
+			}
+			Preferences.Section(bottomDivider: true, label: { Text(LocalizedStringKey("Output Settings:")) }) {
+				Toggle(
+					LocalizedStringKey("Auto-convert traditional Chinese glyphs to KangXi characters"),
+					isOn: $selEnableKanjiConvToKangXi
+				).onChange(of: selEnableKanjiConvToKangXi) { (value) in
+					mgrPrefs.chineseConversionEnabled = value
+				}
+				Toggle(
+					LocalizedStringKey("Auto-convert traditional Chinese glyphs to JIS Shinjitai characters"),
+					isOn: $selEnableKanjiConvToJIS
+				).onChange(of: selEnableKanjiConvToJIS) { (value) in
+					mgrPrefs.shiftJISShinjitaiOutputEnabled = value
+				}
+				Toggle(
+					LocalizedStringKey("Stop farting (when typed phonetic combination is invalid, etc.)"),
+					isOn: $selEnableFartSuppressor
+				).onChange(of: selEnableFartSuppressor) { (value) in
+					mgrPrefs.shouldNotFartInLieuOfBeep = value
+					clsSFX.beep()
+				}
+			}
+			Preferences.Section(label: { Text(LocalizedStringKey("Misc Settings:")).controlSize(.small) }) {
+				Toggle(LocalizedStringKey("Check for updates automatically"), isOn: $selEnableAutoUpdateCheck)
+					.onChange(of: selEnableAutoUpdateCheck) { (value) in
+						mgrPrefs.checkUpdateAutomatically = value
+					}
+					.controlSize(.small)
+				Toggle(LocalizedStringKey("Debug Mode"), isOn: $selEnableDebugMode).controlSize(.small)
+					.onChange(of: selEnableDebugMode) { (value) in
+						mgrPrefs.isDebugModeEnabled = value
+					}
+			}
+		}
+	}
+}
+
+@available(macOS 11.0, *)
+struct suiPrefPaneGeneral_Previews: PreviewProvider {
+	static var previews: some View {
+		suiPrefPaneGeneral()
+	}
+}

Source/UI/PrefUI/suiPrefPaneKeyboard.swift

@@ -0,0 +1,109 @@
+// Copyright (c) 2021 and onwards The vChewing Project (MIT-NTL License).
+/*
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+1. The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+2. No trademark license is granted to use the trade names, trademarks, service
+marks, or product names of Contributor, except as required to fulfill notice
+requirements above.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+*/
+
+import SwiftUI
+
+@available(macOS 11.0, *)
+struct suiPrefPaneKeyboard: View {
+	@State private var selMandarinParser = UserDefaults.standard.integer(forKey: UserDef.kMandarinParser)
+	@State private var selBasicKeyboardLayout: String =
+		UserDefaults.standard.string(forKey: UserDef.kBasicKeyboardLayout) ?? mgrPrefs.basicKeyboardLayout
+	private let contentWidth: Double = {
+		switch mgrPrefs.appleLanguages[0] {
+			case "ja":
+				return 520
+			default:
+				if mgrPrefs.appleLanguages[0].contains("zh-Han") {
+					return 480
+				} else {
+					return 550
+				}
+		}
+	}()
+
+	var body: some View {
+		Preferences.Container(contentWidth: contentWidth) {
+			Preferences.Section(label: { Text(LocalizedStringKey("Phonetic Parser:")) }) {
+				Picker("", selection: $selMandarinParser) {
+					Text(LocalizedStringKey("Dachen (Microsoft Standard / Wang / 01, etc.)")).tag(0)
+					Text(LocalizedStringKey("Eten Traditional")).tag(1)
+					Text(LocalizedStringKey("Eten 26")).tag(3)
+					Text(LocalizedStringKey("IBM")).tag(4)
+					Text(LocalizedStringKey("Hsu")).tag(2)
+					Text(LocalizedStringKey("MiTAC")).tag(5)
+					Text(LocalizedStringKey("Fake Seigyou")).tag(6)
+					Text(LocalizedStringKey("Hanyu Pinyin with Numeral Intonation")).tag(10)
+				}.onChange(of: selMandarinParser) { (value) in
+					mgrPrefs.mandarinParser = value
+				}
+				.labelsHidden()
+				.frame(width: 320.0)
+				Text(LocalizedStringKey("Choose the phonetic layout for Mandarin parser."))
+					.preferenceDescription()
+			}
+			Preferences.Section(bottomDivider: true, label: { Text(LocalizedStringKey("Basic Keyboard Layout:")) }) {
+				HStack {
+					Picker("", selection: $selBasicKeyboardLayout) {
+						ForEach(0...(IME.arrEnumerateSystemKeyboardLayouts.count - 1), id: \.self) { id in
+							Text(IME.arrEnumerateSystemKeyboardLayouts[id].strName).tag(
+								IME.arrEnumerateSystemKeyboardLayouts[id].strValue)
+						}.id(UUID())
+					}.onChange(of: selBasicKeyboardLayout) { (value) in
+						mgrPrefs.basicKeyboardLayout = value
+					}
+					.labelsHidden()
+					.frame(width: 240.0)
+				}
+				Text(LocalizedStringKey("Choose the macOS-level basic keyboard layout."))
+					.preferenceDescription()
+			}
+		}
+		Divider()
+		Preferences.Container(contentWidth: contentWidth) {
+			Preferences.Section(title: "") {
+				VStack(alignment: .leading, spacing: 10) {
+					Text(
+						LocalizedStringKey(
+							"Non-QWERTY alphanumeral keyboard layouts are for Hanyu Pinyin parser only."
+						)
+					)
+					.preferenceDescription()
+					Text(
+						LocalizedStringKey(
+							"Apple Dynamic Bopomofo Basic Keyboard Layouts (Dachen & Eten Traditional) must match the Dachen parser in order to be functional."
+						)
+					)
+					.preferenceDescription()
+				}
+			}
+		}
+	}
+}
+
+@available(macOS 11.0, *)
+struct suiPrefPaneKeyboard_Previews: PreviewProvider {
+	static var previews: some View {
+		suiPrefPaneKeyboard()
+	}
+}

Source/UI/TooltipUI/TooltipController.swift

@@ -1,5 +1,6 @@
 // Copyright (c) 2021 and onwards Weizhong Yang (MIT License).
-// All possible vChewing-specific modifications are (c) 2021 and onwards The vChewing Project (MIT-NTL License).
+// All possible vChewing-specific modifications are of:
+// (c) 2021 and onwards The vChewing Project (MIT-NTL License).
 /*
 Permission is hereby granted, free of charge, to any person obtaining a copy of
 this software and associated documentation files (the "Software"), to deal in

Source/WindowControllers/ctlPrefWindow.swift

@@ -27,27 +27,19 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 import Carbon
 import Cocoa
 
-// Extend the RangeReplaceableCollection to allow it clean duplicated characters.
-extension RangeReplaceableCollection where Element: Hashable {
-	var charDeDuplicate: Self {
-		var set = Set<Element>()
-		return filter { set.insert($0).inserted }
-	}
-}
-
 // Please note that the class should be exposed using the same class name
 // in Objective-C in order to let IMK to see the same class name as
 // the "InputMethodServerPreferencesWindowControllerClass" in Info.plist.
 @objc(ctlPrefWindow) class ctlPrefWindow: NSWindowController {
 	@IBOutlet weak var fontSizePopUpButton: NSPopUpButton!
 	@IBOutlet weak var uiLanguageButton: NSPopUpButton!
-	@IBOutlet weak var basisKeyboardLayoutButton: NSPopUpButton!
+	@IBOutlet weak var basicKeyboardLayoutButton: NSPopUpButton!
 	@IBOutlet weak var selectionKeyComboBox: NSComboBox!
 	@IBOutlet weak var chkTrad2KangXi: NSButton!
 	@IBOutlet weak var chkTrad2JISShinjitai: NSButton!
 	@IBOutlet weak var lblCurrentlySpecifiedUserDataFolder: NSTextFieldCell!
 
-	var currentLanguageSelectItem: NSMenuItem? = nil
+	var currentLanguageSelectItem: NSMenuItem?
 
 	override func windowDidLoad() {
 		super.windowDidLoad()
@@ -56,8 +48,8 @@ extension RangeReplaceableCollection where Element: Hashable {
 			isDefaultFolder: true)
 
 		let languages = ["auto", "en", "zh-Hans", "zh-Hant", "ja"]
-		var autoMUISelectItem: NSMenuItem? = nil
+		var autoMUISelectItem: NSMenuItem?
-		var chosenLanguageItem: NSMenuItem? = nil
+		var chosenLanguageItem: NSMenuItem?
 		uiLanguageButton.menu?.removeAllItems()
 
 		let appleLanguages = mgrPrefs.appleLanguages
@@ -82,25 +74,25 @@ extension RangeReplaceableCollection where Element: Hashable {
 		uiLanguageButton.select(currentLanguageSelectItem)
 
 		let list = TISCreateInputSourceList(nil, true).takeRetainedValue() as! [TISInputSource]
-		var usKeyboardLayoutItem: NSMenuItem? = nil
+		var usKeyboardLayoutItem: NSMenuItem?
-		var chosenBaseKeyboardLayoutItem: NSMenuItem? = nil
+		var chosenBaseKeyboardLayoutItem: NSMenuItem?
 
-		basisKeyboardLayoutButton.menu?.removeAllItems()
+		basicKeyboardLayoutButton.menu?.removeAllItems()
 
 		let itmAppleZhuyinBopomofo = NSMenuItem()
 		itmAppleZhuyinBopomofo.title = String(
 			format: NSLocalizedString("Apple Zhuyin Bopomofo (Dachen)", comment: ""))
 		itmAppleZhuyinBopomofo.representedObject = String(
 			"com.apple.keylayout.ZhuyinBopomofo")
-		basisKeyboardLayoutButton.menu?.addItem(itmAppleZhuyinBopomofo)
+		basicKeyboardLayoutButton.menu?.addItem(itmAppleZhuyinBopomofo)
 
 		let itmAppleZhuyinEten = NSMenuItem()
 		itmAppleZhuyinEten.title = String(
 			format: NSLocalizedString("Apple Zhuyin Eten (Traditional)", comment: ""))
 		itmAppleZhuyinEten.representedObject = String("com.apple.keylayout.ZhuyinEten")
-		basisKeyboardLayoutButton.menu?.addItem(itmAppleZhuyinEten)
+		basicKeyboardLayoutButton.menu?.addItem(itmAppleZhuyinEten)
 
-		let basisKeyboardLayoutID = mgrPrefs.basisKeyboardLayout
+		let basicKeyboardLayoutID = mgrPrefs.basicKeyboardLayout
 
 		for source in list {
 			if let categoryPtr = TISGetInputSourceProperty(source, kTISPropertyInputSourceCategory) {
@@ -150,13 +142,15 @@ extension RangeReplaceableCollection where Element: Hashable {
 			if sourceID == "com.apple.keylayout.US" {
 				usKeyboardLayoutItem = menuItem
 			}
-			if basisKeyboardLayoutID == sourceID {
+			if basicKeyboardLayoutID == sourceID {
 				chosenBaseKeyboardLayoutItem = menuItem
 			}
-			basisKeyboardLayoutButton.menu?.addItem(menuItem)
+			if IME.arrWhitelistedKeyLayoutsASCII.contains(sourceID) || sourceID.contains("vChewing") {
+				basicKeyboardLayoutButton.menu?.addItem(menuItem)
+			}
 		}
 
-		switch basisKeyboardLayoutID {
+		switch basicKeyboardLayoutID {
 			case "com.apple.keylayout.ZhuyinBopomofo":
 				chosenBaseKeyboardLayoutItem = itmAppleZhuyinBopomofo
 			case "com.apple.keylayout.ZhuyinEten":
@@ -165,7 +159,7 @@ extension RangeReplaceableCollection where Element: Hashable {
 				break  // nothing to do
 		}
 
-		basisKeyboardLayoutButton.select(chosenBaseKeyboardLayoutItem ?? usKeyboardLayoutItem)
+		basicKeyboardLayoutButton.select(chosenBaseKeyboardLayoutItem ?? usKeyboardLayoutItem)
 
 		selectionKeyComboBox.usesDataSource = false
 		selectionKeyComboBox.removeAllItems()
@@ -201,9 +195,9 @@ extension RangeReplaceableCollection where Element: Hashable {
 		}
 	}
 
-	@IBAction func updateBasisKeyboardLayoutAction(_ sender: Any) {
+	@IBAction func updateBasicKeyboardLayoutAction(_ sender: Any) {
-		if let sourceID = basisKeyboardLayoutButton.selectedItem?.representedObject as? String {
+		if let sourceID = basicKeyboardLayoutButton.selectedItem?.representedObject as? String {
-			mgrPrefs.basisKeyboardLayout = sourceID
+			mgrPrefs.basicKeyboardLayout = sourceID
 		}
 	}
 
@@ -247,7 +241,7 @@ extension RangeReplaceableCollection where Element: Hashable {
 		} catch {
 			if let window = window {
 				let alert = NSAlert(error: error)
-				alert.beginSheetModal(for: window) { response in
+				alert.beginSheetModal(for: window) { _ in
 					self.selectionKeyComboBox.stringValue = mgrPrefs.candidateKeys
 				}
 				clsSFX.beep()
@@ -256,8 +250,7 @@ extension RangeReplaceableCollection where Element: Hashable {
 	}
 
 	@IBAction func resetSpecifiedUserDataFolder(_ sender: Any) {
-		UserDefaults.standard.removeObject(forKey: "UserDataFolderSpecified")
+		mgrPrefs.resetSpecifiedUserDataFolder()
-		IME.initLangModels(userOnly: true)
 	}
 
 	@IBAction func chooseUserDataFolderToSpecify(_ sender: Any) {
@@ -275,22 +268,24 @@ extension RangeReplaceableCollection where Element: Hashable {
 			IME.dlgOpenPath.beginSheetModal(for: self.window!) { result in
 				if result == NSApplication.ModalResponse.OK {
 					if IME.dlgOpenPath.url != nil {
-						if mgrLangModel.checkIfSpecifiedUserDataFolderValid(
+						// CommonDialog 讀入的路徑沒有結尾斜槓，這會導致檔案目錄合規性判定失準。
-							IME.dlgOpenPath.url!.path)
+						// 所以要手動補回來。
-						{
+						var newPath = IME.dlgOpenPath.url!.path
-							mgrPrefs.userDataFolderSpecified = IME.dlgOpenPath.url!.path
+						newPath.ensureTrailingSlash()
+						if mgrLangModel.checkIfSpecifiedUserDataFolderValid(newPath) {
+							mgrPrefs.userDataFolderSpecified = newPath
 							IME.initLangModels(userOnly: true)
 						} else {
 							clsSFX.beep()
 							if !bolPreviousFolderValidity {
-								self.resetSpecifiedUserDataFolder(self)
+								mgrPrefs.resetSpecifiedUserDataFolder()
 							}
 							return
 						}
 					}
 				} else {
 					if !bolPreviousFolderValidity {
-						self.resetSpecifiedUserDataFolder(self)
+						mgrPrefs.resetSpecifiedUserDataFolder()
 					}
 					return
 				}

Source/WindowNIBs/Base.lproj/frmPrefWindow.xib

@@ -8,7 +8,7 @@
     <objects>
         <customObject id="-2" userLabel="File's Owner" customClass="ctlPrefWindow">
             <connections>
-                <outlet property="basisKeyboardLayoutButton" destination="124" id="135"/>
+                <outlet property="basicKeyboardLayoutButton" destination="124" id="135"/>
                 <outlet property="chkTrad2JISShinjitai" destination="h4r-Sp-LBI" id="pk8-xi-IJi"/>
                 <outlet property="chkTrad2KangXi" destination="5IL-zZ-CL9" id="PGS-Dy-BBY"/>
                 <outlet property="fontSizePopUpButton" destination="90" id="108"/>
@@ -163,7 +163,7 @@
                                                         </connections>
                                                     </matrix>
                                                     <button verticalHuggingPriority="750" id="233">
-                                                        <rect key="frame" x="169" y="25.5" width="245" height="17"/>
+                                                        <rect key="frame" x="169" y="26.5" width="245" height="17"/>
                                                         <autoresizingMask key="autoresizingMask" flexibleMaxX="YES" flexibleMinY="YES"/>
                                                         <buttonCell key="cell" type="check" title="Show page buttons in candidate list" bezelStyle="regularSquare" imagePosition="left" controlSize="small" state="on" inset="2" id="shc-Nu-UsM">
                                                             <behavior key="behavior" changeContents="YES" doesNotDimImage="YES" lightByContents="YES"/>
@@ -234,22 +234,8 @@
                                                 <rect key="frame" x="3" y="3" width="445" height="134"/>
                                                 <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
                                                 <subviews>
-                                                    <button verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="Yaj-QY-7xV" userLabel="chkCNSSupport">
-                                                        <rect key="frame" x="19" y="104.5" width="406" height="17"/>
-                                                        <constraints>
-                                                            <constraint firstAttribute="height" constant="16" id="KdE-Vd-Y50"/>
-                                                        </constraints>
-                                                        <buttonCell key="cell" type="check" title="Enable CNS11643 Support (2022-01-07)" bezelStyle="regularSquare" imagePosition="left" controlSize="small" inset="2" id="W24-T4-cg0">
-                                                            <behavior key="behavior" changeContents="YES" doesNotDimImage="YES" lightByContents="YES"/>
-                                                            <font key="font" metaFont="cellTitle"/>
-                                                        </buttonCell>
-                                                        <connections>
-                                                            <action selector="toggleCNSSupport:" target="-2" id="mcY-ma-N0c"/>
-                                                            <binding destination="32" name="value" keyPath="values.CNS11643Enabled" id="Pbx-Gt-upm"/>
-                                                        </connections>
-                                                    </button>
                                                     <button verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="5IL-zZ-CL9" userLabel="chkTrad2KangXi">
-                                                        <rect key="frame" x="19" y="83.5" width="406" height="16"/>
+                                                        <rect key="frame" x="19" y="99.5" width="406" height="16"/>
                                                         <buttonCell key="cell" type="check" title="Auto-convert traditional Chinese glyphs to KangXi characters" bezelStyle="regularSquare" imagePosition="left" controlSize="small" inset="2" id="BSK-bH-Gct">
                                                             <behavior key="behavior" changeContents="YES" doesNotDimImage="YES" lightByContents="YES"/>
                                                             <font key="font" metaFont="cellTitle"/>
@@ -260,7 +246,7 @@
                                                         </connections>
                                                     </button>
                                                     <button verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="h4r-Sp-LBI" userLabel="chkTrad2JISShinjitai">
-                                                        <rect key="frame" x="19" y="62.5" width="406" height="16"/>
+                                                        <rect key="frame" x="19" y="78.5" width="406" height="16"/>
                                                         <buttonCell key="cell" type="check" title="Auto-convert traditional Chinese glyphs to JIS Shinjitai characters" bezelStyle="regularSquare" imagePosition="left" controlSize="small" inset="2" id="eia-1F-Do0">
                                                             <behavior key="behavior" changeContents="YES" doesNotDimImage="YES" lightByContents="YES"/>
                                                             <font key="font" metaFont="cellTitle"/>
@@ -271,7 +257,7 @@
                                                         </connections>
                                                     </button>
                                                     <button verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="pYB-E5-4Nv">
-                                                        <rect key="frame" x="19" y="41.5" width="406" height="16"/>
+                                                        <rect key="frame" x="19" y="57.5" width="406" height="16"/>
                                                         <buttonCell key="cell" type="check" title="Stop farting (when typed phonetic combination is invalid, etc.)" bezelStyle="regularSquare" imagePosition="left" controlSize="small" inset="2" id="62u-jY-BRh">
                                                             <behavior key="behavior" changeContents="YES" doesNotDimImage="YES" lightByContents="YES"/>
                                                             <font key="font" metaFont="cellTitle"/>
@@ -283,17 +269,14 @@
                                                     </button>
                                                 </subviews>
                                                 <constraints>
-                                                    <constraint firstItem="Yaj-QY-7xV" firstAttribute="leading" secondItem="5IL-zZ-CL9" secondAttribute="leading" id="4Bc-Yl-MiB"/>
-                                                    <constraint firstItem="5IL-zZ-CL9" firstAttribute="top" secondItem="Yaj-QY-7xV" secondAttribute="bottom" constant="6" symbolic="YES" id="7iI-Gm-cGt"/>
                                                     <constraint firstItem="h4r-Sp-LBI" firstAttribute="top" secondItem="5IL-zZ-CL9" secondAttribute="bottom" constant="6" symbolic="YES" id="8Pq-i7-vK8"/>
-                                                    <constraint firstItem="Yaj-QY-7xV" firstAttribute="trailing" secondItem="5IL-zZ-CL9" secondAttribute="trailing" id="8QP-dq-cfD"/>
                                                     <constraint firstItem="pYB-E5-4Nv" firstAttribute="trailing" secondItem="h4r-Sp-LBI" secondAttribute="trailing" id="IWM-hB-AeP"/>
-                                                    <constraint firstItem="Yaj-QY-7xV" firstAttribute="top" secondItem="brd-6J-saN" secondAttribute="top" constant="13.5" id="Qf7-x1-bcp"/>
+                                                    <constraint firstItem="5IL-zZ-CL9" firstAttribute="top" secondItem="brd-6J-saN" secondAttribute="top" constant="19.5" id="i7s-ez-iKF"/>
-                                                    <constraint firstAttribute="trailing" secondItem="Yaj-QY-7xV" secondAttribute="trailing" constant="20" symbolic="YES" id="jqe-y8-arB"/>
                                                     <constraint firstItem="pYB-E5-4Nv" firstAttribute="leading" secondItem="h4r-Sp-LBI" secondAttribute="leading" id="jsE-BB-mo7"/>
-                                                    <constraint firstItem="Yaj-QY-7xV" firstAttribute="leading" secondItem="brd-6J-saN" secondAttribute="leading" constant="20" symbolic="YES" id="mjS-PE-C1d"/>
+                                                    <constraint firstAttribute="trailing" secondItem="5IL-zZ-CL9" secondAttribute="trailing" constant="20" symbolic="YES" id="kZf-wi-ijB"/>
                                                     <constraint firstItem="pYB-E5-4Nv" firstAttribute="top" secondItem="h4r-Sp-LBI" secondAttribute="bottom" constant="6" symbolic="YES" id="unl-l5-LUF"/>
                                                     <constraint firstItem="5IL-zZ-CL9" firstAttribute="leading" secondItem="h4r-Sp-LBI" secondAttribute="leading" id="v0c-Cb-FH7"/>
+                                                    <constraint firstItem="5IL-zZ-CL9" firstAttribute="leading" secondItem="brd-6J-saN" secondAttribute="leading" constant="20" symbolic="YES" id="xAB-f3-f0e"/>
                                                     <constraint firstItem="5IL-zZ-CL9" firstAttribute="trailing" secondItem="h4r-Sp-LBI" secondAttribute="trailing" id="z2C-jk-sNa"/>
                                                 </constraints>
                                             </view>
@@ -445,7 +428,7 @@
                                                             </column>
                                                         </cells>
                                                         <connections>
-                                                            <binding destination="32" name="selectedTag" keyPath="values.SpecifyTabKeyBehavior" id="ZDp-6s-2lR"/>
+                                                            <binding destination="32" name="selectedTag" keyPath="values.SpecifyShiftTabKeyBehavior" id="R1A-Ji-8i2"/>
                                                         </connections>
                                                     </matrix>
                                                     <textField verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="TMn-LX-3Ub">
@@ -478,7 +461,7 @@
                                                             </column>
                                                         </cells>
                                                         <connections>
-                                                            <binding destination="32" name="selectedTag" keyPath="values.SpecifySpaceKeyBehavior" id="yBI-fc-n36"/>
+                                                            <binding destination="32" name="selectedTag" keyPath="values.SpecifyShiftSpaceKeyBehavior" id="Ajq-3d-Lh1"/>
                                                         </connections>
                                                     </matrix>
                                                     <textField verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="J0f-Aw-dxC">
@@ -666,9 +649,24 @@
                                                             <action selector="resetSpecifiedUserDataFolder:" target="-2" id="pqR-AG-4cm"/>
                                                         </connections>
                                                     </button>
+                                                    <button verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="Yaj-QY-7xV" userLabel="chkCNSSupport">
+                                                        <rect key="frame" x="19" y="249.5" width="406" height="17"/>
+                                                        <constraints>
+                                                            <constraint firstAttribute="height" constant="16" id="KdE-Vd-Y50"/>
+                                                        </constraints>
+                                                        <buttonCell key="cell" type="check" title="Enable CNS11643 Support (2022-01-07)" bezelStyle="regularSquare" imagePosition="left" controlSize="small" inset="2" id="W24-T4-cg0">
+                                                            <behavior key="behavior" changeContents="YES" doesNotDimImage="YES" lightByContents="YES"/>
+                                                            <font key="font" metaFont="cellTitle"/>
+                                                        </buttonCell>
+                                                        <connections>
+                                                            <action selector="toggleCNSSupport:" target="-2" id="mcY-ma-N0c"/>
+                                                            <binding destination="32" name="value" keyPath="values.CNS11643Enabled" id="Pbx-Gt-upm"/>
+                                                        </connections>
+                                                    </button>
                                                 </subviews>
                                                 <constraints>
                                                     <constraint firstItem="s7t-Kk-EPu" firstAttribute="bottom" secondItem="MPN-np-SbT" secondAttribute="bottom" id="0Fo-ya-hQ9"/>
+                                                    <constraint firstItem="Yaj-QY-7xV" firstAttribute="top" secondItem="O4B-Z2-XYi" secondAttribute="bottom" constant="6" symbolic="YES" id="2RJ-v9-tO3"/>
                                                     <constraint firstAttribute="trailing" secondItem="FUV-qx-xkC" secondAttribute="trailing" constant="20" symbolic="YES" id="6QR-tj-5cH"/>
                                                     <constraint firstItem="MPN-np-SbT" firstAttribute="leading" secondItem="p7V-IN-OTr" secondAttribute="leading" constant="346" id="7xl-xX-CEQ"/>
                                                     <constraint firstItem="s7t-Kk-EPu" firstAttribute="leading" secondItem="MPN-np-SbT" secondAttribute="trailing" constant="-376" id="9at-E8-Bt1"/>
@@ -682,7 +680,9 @@
                                                     <constraint firstItem="p7V-IN-OTr" firstAttribute="trailing" secondItem="O4B-Z2-XYi" secondAttribute="trailing" id="auY-l9-U7h"/>
                                                     <constraint firstItem="jXe-xz-9Sd" firstAttribute="leading" secondItem="MPN-np-SbT" secondAttribute="trailing" constant="-1" id="cYQ-Rx-tuG"/>
                                                     <constraint firstItem="s7t-Kk-EPu" firstAttribute="trailing" secondItem="p7V-IN-OTr" secondAttribute="trailing" constant="-60" id="eIn-kD-FGz"/>
+                                                    <constraint firstItem="Yaj-QY-7xV" firstAttribute="leading" secondItem="O4B-Z2-XYi" secondAttribute="leading" id="kPh-vq-asr"/>
                                                     <constraint firstItem="p7V-IN-OTr" firstAttribute="leading" secondItem="O4B-Z2-XYi" secondAttribute="leading" id="mmu-SS-jac"/>
+                                                    <constraint firstItem="Yaj-QY-7xV" firstAttribute="trailing" secondItem="O4B-Z2-XYi" secondAttribute="trailing" id="r6q-3h-41a"/>
                                                     <constraint firstItem="s7t-Kk-EPu" firstAttribute="trailing" secondItem="FUV-qx-xkC" secondAttribute="trailing" constant="-60" id="vIO-x1-7Q2"/>
                                                     <constraint firstItem="jXe-xz-9Sd" firstAttribute="baseline" secondItem="MPN-np-SbT" secondAttribute="baseline" id="wys-ML-2Q2"/>
                                                 </constraints>
@@ -755,16 +755,16 @@
                                                                 <items>
                                                                     <menuItem title="Standard" state="on" id="6"/>
                                                                     <menuItem title="ETen" tag="1" id="7"/>
-                                                                    <menuItem title="Hsu" tag="2" id="8"/>
                                                                     <menuItem title="ETen26" tag="3" id="9"/>
                                                                     <menuItem title="IBM" tag="4" id="137"/>
+                                                                    <menuItem title="Hsu" tag="2" id="8"/>
                                                                     <menuItem title="MiTAC" tag="5" id="7fV-x8-WHQ"/>
                                                                     <menuItem title="Fake Seigyou" tag="6" id="27F-8T-FkQ"/>
                                                                     <menuItem title="Hanyu Pinyin" tag="10" id="10"/>
                                                                 </items>
                                                             </menu>
                                                             <connections>
-                                                                <binding destination="32" name="selectedTag" keyPath="values.KeyboardLayout" id="103"/>
+                                                                <binding destination="32" name="selectedTag" keyPath="values.MandarinParser" id="n3r-9x-E3p"/>
                                                             </connections>
                                                         </popUpButtonCell>
                                                     </popUpButton>
@@ -779,7 +779,7 @@
                                                             <menu key="menu" title="OtherViews" id="128"/>
                                                         </popUpButtonCell>
                                                         <connections>
-                                                            <action selector="updateBasisKeyboardLayoutAction:" target="-2" id="136"/>
+                                                            <action selector="updateBasicKeyboardLayoutAction:" target="-2" id="136"/>
                                                         </connections>
                                                     </popUpButton>
                                                     <textField verticalHuggingPriority="750" translatesAutoresizingMaskIntoConstraints="NO" id="125">

vChewing.xcodeproj/project.pbxproj

@@ -30,7 +30,27 @@
 		5B707CEC27D9F4870099EF99 /* OpenCC in Frameworks */ = {isa = PBXBuildFile; productRef = 5B707CEB27D9F4870099EF99 /* OpenCC */; };
 		5B73FB5E27B2BE1300E9BF49 /* InfoPlist.strings in Resources */ = {isa = PBXBuildFile; fileRef = 5B73FB6027B2BE1300E9BF49 /* InfoPlist.strings */; };
 		5B7BC4B027AFFBE800F66C24 /* frmPrefWindow.xib in Resources */ = {isa = PBXBuildFile; fileRef = 5B7BC4AE27AFFBE800F66C24 /* frmPrefWindow.xib */; };
+		5BA9FD0F27FEDB6B002DE248 /* suiPrefPaneGeneral.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5BA9FD0A27FEDB6B002DE248 /* suiPrefPaneGeneral.swift */; };
+		5BA9FD1027FEDB6B002DE248 /* suiPrefPaneKeyboard.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5BA9FD0B27FEDB6B002DE248 /* suiPrefPaneKeyboard.swift */; };
+		5BA9FD1127FEDB6B002DE248 /* ctlPrefUI.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5BA9FD0C27FEDB6B002DE248 /* ctlPrefUI.swift */; };
+		5BA9FD1227FEDB6B002DE248 /* suiPrefPaneExperience.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5BA9FD0D27FEDB6B002DE248 /* suiPrefPaneExperience.swift */; };
+		5BA9FD1327FEDB6B002DE248 /* suiPrefPaneDictionary.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5BA9FD0E27FEDB6B002DE248 /* suiPrefPaneDictionary.swift */; };
+		5BA9FD3E27FEF3C8002DE248 /* Utilities.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5BA9FD3127FEF3C8002DE248 /* Utilities.swift */; };
+		5BA9FD3F27FEF3C8002DE248 /* Pane.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5BA9FD3227FEF3C8002DE248 /* Pane.swift */; };
+		5BA9FD4027FEF3C8002DE248 /* Localization.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5BA9FD3327FEF3C8002DE248 /* Localization.swift */; };
+		5BA9FD4127FEF3C8002DE248 /* PreferencesStyle.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5BA9FD3427FEF3C8002DE248 /* PreferencesStyle.swift */; };
+		5BA9FD4227FEF3C8002DE248 /* PreferencePane.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5BA9FD3527FEF3C8002DE248 /* PreferencePane.swift */; };
+		5BA9FD4327FEF3C8002DE248 /* Preferences.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5BA9FD3627FEF3C8002DE248 /* Preferences.swift */; };
+		5BA9FD4427FEF3C8002DE248 /* SegmentedControlStyleViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5BA9FD3727FEF3C8002DE248 /* SegmentedControlStyleViewController.swift */; };
+		5BA9FD4527FEF3C9002DE248 /* ToolbarItemStyleViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5BA9FD3827FEF3C8002DE248 /* ToolbarItemStyleViewController.swift */; };
+		5BA9FD4627FEF3C9002DE248 /* Container.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5BA9FD3927FEF3C8002DE248 /* Container.swift */; };
+		5BA9FD4727FEF3C9002DE248 /* PreferencesStyleController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5BA9FD3A27FEF3C8002DE248 /* PreferencesStyleController.swift */; };
+		5BA9FD4827FEF3C9002DE248 /* PreferencesWindowController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5BA9FD3B27FEF3C8002DE248 /* PreferencesWindowController.swift */; };
+		5BA9FD4927FEF3C9002DE248 /* Section.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5BA9FD3C27FEF3C8002DE248 /* Section.swift */; };
+		5BA9FD4A27FEF3C9002DE248 /* PreferencesTabViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5BA9FD3D27FEF3C8002DE248 /* PreferencesTabViewController.swift */; };
+		5BA9FD8B28006B41002DE248 /* VDKComboBox.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5BA9FD8A28006B41002DE248 /* VDKComboBox.swift */; };
 		5BAD0CD527D701F6003D127F /* vChewingKeyLayout.bundle in Resources */ = {isa = PBXBuildFile; fileRef = 5B30F11227BA568800484E24 /* vChewingKeyLayout.bundle */; };
+		5BAEFAD028012565001F42C9 /* mgrLangModel.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5BAEFACF28012565001F42C9 /* mgrLangModel.swift */; };
 		5BB802DA27FABA8300CF1C19 /* ctlInputMethod_Menu.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5BB802D927FABA8300CF1C19 /* ctlInputMethod_Menu.swift */; };
 		5BBBB75F27AED54C0023B93A /* Beep.m4a in Resources */ = {isa = PBXBuildFile; fileRef = 5BBBB75D27AED54C0023B93A /* Beep.m4a */; };
 		5BBBB76027AED54C0023B93A /* Fart.m4a in Resources */ = {isa = PBXBuildFile; fileRef = 5BBBB75E27AED54C0023B93A /* Fart.m4a */; };
@@ -50,6 +70,7 @@
 		5BD05C6827B2BBEF004C4F1D /* Content.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5BD05C6327B2BBEF004C4F1D /* Content.swift */; };
 		5BD05C6927B2BBEF004C4F1D /* WindowController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5BD05C6427B2BBEF004C4F1D /* WindowController.swift */; };
 		5BD05C6A27B2BBEF004C4F1D /* ViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5BD05C6527B2BBEF004C4F1D /* ViewController.swift */; };
+		5BDC1CFA27FDF1310052C2B9 /* apiUpdate.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5BDC1CF927FDF1310052C2B9 /* apiUpdate.swift */; };
 		5BDCBB2E27B4E67A00D0CC59 /* vChewingPhraseEditor.app in Resources */ = {isa = PBXBuildFile; fileRef = 5BD05BB827B2A429004C4F1D /* vChewingPhraseEditor.app */; };
 		5BE78BD927B3775B005EA1BE /* ctlAboutWindow.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5BE78BD827B37750005EA1BE /* ctlAboutWindow.swift */; };
 		5BE78BDD27B3776D005EA1BE /* frmAboutWindow.xib in Resources */ = {isa = PBXBuildFile; fileRef = 5BE78BDA27B37764005EA1BE /* frmAboutWindow.xib */; };
@@ -188,6 +209,26 @@
 		5B7BC4AF27AFFBE800F66C24 /* Base */ = {isa = PBXFileReference; lastKnownFileType = file.xib; name = Base; path = Base.lproj/frmPrefWindow.xib; sourceTree = "<group>"; };
 		5B7BC4B227AFFC0B00F66C24 /* en */ = {isa = PBXFileReference; lastKnownFileType = text.plist.strings; name = en; path = en.lproj/frmPrefWindow.strings; sourceTree = "<group>"; };
 		5B8F43ED27C9BC220069AC27 /* SymbolLM.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = SymbolLM.h; sourceTree = "<group>"; };
+		5BA9FD0A27FEDB6B002DE248 /* suiPrefPaneGeneral.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = suiPrefPaneGeneral.swift; sourceTree = "<group>"; };
+		5BA9FD0B27FEDB6B002DE248 /* suiPrefPaneKeyboard.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = suiPrefPaneKeyboard.swift; sourceTree = "<group>"; };
+		5BA9FD0C27FEDB6B002DE248 /* ctlPrefUI.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = ctlPrefUI.swift; sourceTree = "<group>"; };
+		5BA9FD0D27FEDB6B002DE248 /* suiPrefPaneExperience.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = suiPrefPaneExperience.swift; sourceTree = "<group>"; };
+		5BA9FD0E27FEDB6B002DE248 /* suiPrefPaneDictionary.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = suiPrefPaneDictionary.swift; sourceTree = "<group>"; };
+		5BA9FD3127FEF3C8002DE248 /* Utilities.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = Utilities.swift; sourceTree = "<group>"; };
+		5BA9FD3227FEF3C8002DE248 /* Pane.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = Pane.swift; sourceTree = "<group>"; };
+		5BA9FD3327FEF3C8002DE248 /* Localization.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = Localization.swift; sourceTree = "<group>"; };
+		5BA9FD3427FEF3C8002DE248 /* PreferencesStyle.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = PreferencesStyle.swift; sourceTree = "<group>"; };
+		5BA9FD3527FEF3C8002DE248 /* PreferencePane.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = PreferencePane.swift; sourceTree = "<group>"; };
+		5BA9FD3627FEF3C8002DE248 /* Preferences.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = Preferences.swift; sourceTree = "<group>"; };
+		5BA9FD3727FEF3C8002DE248 /* SegmentedControlStyleViewController.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = SegmentedControlStyleViewController.swift; sourceTree = "<group>"; };
+		5BA9FD3827FEF3C8002DE248 /* ToolbarItemStyleViewController.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = ToolbarItemStyleViewController.swift; sourceTree = "<group>"; };
+		5BA9FD3927FEF3C8002DE248 /* Container.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = Container.swift; sourceTree = "<group>"; };
+		5BA9FD3A27FEF3C8002DE248 /* PreferencesStyleController.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = PreferencesStyleController.swift; sourceTree = "<group>"; };
+		5BA9FD3B27FEF3C8002DE248 /* PreferencesWindowController.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = PreferencesWindowController.swift; sourceTree = "<group>"; };
+		5BA9FD3C27FEF3C8002DE248 /* Section.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = Section.swift; sourceTree = "<group>"; };
+		5BA9FD3D27FEF3C8002DE248 /* PreferencesTabViewController.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = PreferencesTabViewController.swift; sourceTree = "<group>"; };
+		5BA9FD8A28006B41002DE248 /* VDKComboBox.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = VDKComboBox.swift; sourceTree = "<group>"; };
+		5BAEFACF28012565001F42C9 /* mgrLangModel.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = mgrLangModel.swift; sourceTree = "<group>"; };
 		5BB802D927FABA8300CF1C19 /* ctlInputMethod_Menu.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ctlInputMethod_Menu.swift; sourceTree = "<group>"; };
 		5BBBB75D27AED54C0023B93A /* Beep.m4a */ = {isa = PBXFileReference; lastKnownFileType = file; path = Beep.m4a; sourceTree = "<group>"; };
 		5BBBB75E27AED54C0023B93A /* Fart.m4a */ = {isa = PBXFileReference; lastKnownFileType = file; path = Fart.m4a; sourceTree = "<group>"; };
@@ -212,6 +253,7 @@
 		5BD05C6327B2BBEF004C4F1D /* Content.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = Content.swift; sourceTree = "<group>"; };
 		5BD05C6427B2BBEF004C4F1D /* WindowController.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = WindowController.swift; sourceTree = "<group>"; };
 		5BD05C6527B2BBEF004C4F1D /* ViewController.swift */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.swift; path = ViewController.swift; sourceTree = "<group>"; };
+		5BDC1CF927FDF1310052C2B9 /* apiUpdate.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = apiUpdate.swift; sourceTree = "<group>"; };
 		5BDCBB4227B4F6C600D0CC59 /* zh-Hant */ = {isa = PBXFileReference; lastKnownFileType = text.plist.strings; name = "zh-Hant"; path = "zh-Hant.lproj/MainMenu.strings"; sourceTree = "<group>"; };
 		5BDCBB4327B4F6C600D0CC59 /* zh-Hant */ = {isa = PBXFileReference; lastKnownFileType = text.plist.strings; name = "zh-Hant"; path = "zh-Hant.lproj/frmAboutWindow.strings"; sourceTree = "<group>"; };
 		5BDCBB4527B4F6C600D0CC59 /* zh-Hant */ = {isa = PBXFileReference; lastKnownFileType = text.plist.strings; name = "zh-Hant"; path = "zh-Hant.lproj/frmPrefWindow.strings"; sourceTree = "<group>"; };
@@ -349,8 +391,10 @@
 		5B62A30127AE732800A19448 /* 3rdParty */ = {
 			isa = PBXGroup;
 			children = (
+				5BA9FD8C28006BA7002DE248 /* VDKComboBox */,
 				5B707CE627D9F43E0099EF99 /* OpenCCBridge */,
 				5B62A30227AE733500A19448 /* OVMandarin */,
+				5BA9FCEA27FED652002DE248 /* SindreSorhus */,
 			);
 			path = 3rdParty;
 			sourceTree = "<group>";
@@ -410,6 +454,7 @@
 		5B62A32227AE756300A19448 /* IMEModules */ = {
 			isa = PBXGroup;
 			children = (
+				5BDC1CF927FDF1310052C2B9 /* apiUpdate.swift */,
 				D4A13D5927A59D5C003BE359 /* ctlInputMethod.swift */,
 				5BB802D927FABA8300CF1C19 /* ctlInputMethod_Menu.swift */,
 				5B5E535127EF261400C6AA1E /* IME.swift */,
@@ -435,6 +480,7 @@
 				D41355D6278D7409005E5CBD /* mgrLangModel.h */,
 				D495583A27A5C6C4006ADE1C /* mgrLangModel_Privates.h */,
 				D41355D7278D7409005E5CBD /* mgrLangModel.mm */,
+				5BAEFACF28012565001F42C9 /* mgrLangModel.swift */,
 				5B62A32527AE758000A19448 /* SubLanguageModels */,
 			);
 			path = LangModelRelated;
@@ -479,6 +525,7 @@
 			isa = PBXGroup;
 			children = (
 				5B62A33E27AE7CD900A19448 /* CandidateUI */,
+				5BA9FD0927FED9F3002DE248 /* PrefUI */,
 				5B62A34227AE7CD900A19448 /* TooltipUI */,
 				5B62A34427AE7CD900A19448 /* NotifierUI */,
 			);
@@ -561,6 +608,55 @@
 			path = OpenCCBridge;
 			sourceTree = "<group>";
 		};
+		5BA9FCEA27FED652002DE248 /* SindreSorhus */ = {
+			isa = PBXGroup;
+			children = (
+				5BA9FD3027FEF3C8002DE248 /* Preferences */,
+			);
+			name = SindreSorhus;
+			path = Source/3rdParty/SindreSorhus;
+			sourceTree = SOURCE_ROOT;
+		};
+		5BA9FD0927FED9F3002DE248 /* PrefUI */ = {
+			isa = PBXGroup;
+			children = (
+				5BA9FD0C27FEDB6B002DE248 /* ctlPrefUI.swift */,
+				5BA9FD0E27FEDB6B002DE248 /* suiPrefPaneDictionary.swift */,
+				5BA9FD0D27FEDB6B002DE248 /* suiPrefPaneExperience.swift */,
+				5BA9FD0A27FEDB6B002DE248 /* suiPrefPaneGeneral.swift */,
+				5BA9FD0B27FEDB6B002DE248 /* suiPrefPaneKeyboard.swift */,
+			);
+			path = PrefUI;
+			sourceTree = "<group>";
+		};
+		5BA9FD3027FEF3C8002DE248 /* Preferences */ = {
+			isa = PBXGroup;
+			children = (
+				5BA9FD3927FEF3C8002DE248 /* Container.swift */,
+				5BA9FD3327FEF3C8002DE248 /* Localization.swift */,
+				5BA9FD3227FEF3C8002DE248 /* Pane.swift */,
+				5BA9FD3527FEF3C8002DE248 /* PreferencePane.swift */,
+				5BA9FD3627FEF3C8002DE248 /* Preferences.swift */,
+				5BA9FD3427FEF3C8002DE248 /* PreferencesStyle.swift */,
+				5BA9FD3A27FEF3C8002DE248 /* PreferencesStyleController.swift */,
+				5BA9FD3D27FEF3C8002DE248 /* PreferencesTabViewController.swift */,
+				5BA9FD3B27FEF3C8002DE248 /* PreferencesWindowController.swift */,
+				5BA9FD3C27FEF3C8002DE248 /* Section.swift */,
+				5BA9FD3727FEF3C8002DE248 /* SegmentedControlStyleViewController.swift */,
+				5BA9FD3827FEF3C8002DE248 /* ToolbarItemStyleViewController.swift */,
+				5BA9FD3127FEF3C8002DE248 /* Utilities.swift */,
+			);
+			path = Preferences;
+			sourceTree = "<group>";
+		};
+		5BA9FD8C28006BA7002DE248 /* VDKComboBox */ = {
+			isa = PBXGroup;
+			children = (
+				5BA9FD8A28006B41002DE248 /* VDKComboBox.swift */,
+			);
+			path = VDKComboBox;
+			sourceTree = "<group>";
+		};
 		5BBBB75C27AED54C0023B93A /* SoundFiles */ = {
 			isa = PBXGroup;
 			children = (
@@ -824,7 +920,7 @@
 			isa = PBXProject;
 			attributes = {
 				LastSwiftUpdateCheck = 1320;
-				LastUpgradeCheck = 1320;
+				LastUpgradeCheck = 1330;
 				TargetAttributes = {
 					5BD05BB727B2A429004C4F1D = {
 						CreatedOnToolsVersion = 13.2;
@@ -963,40 +1059,61 @@
 			files = (
 				5B707CE827D9F4590099EF99 /* OpenCCBridge.swift in Sources */,
 				D427F76C278CA2B0004A2160 /* AppDelegate.swift in Sources */,
+				5BA9FD4527FEF3C9002DE248 /* ToolbarItemStyleViewController.swift in Sources */,
+				5BA9FD4127FEF3C8002DE248 /* PreferencesStyle.swift in Sources */,
+				5BA9FD1227FEDB6B002DE248 /* suiPrefPaneExperience.swift in Sources */,
 				6ACC3D442793701600F1B140 /* ParselessPhraseDB.cpp in Sources */,
 				D461B792279DAC010070E734 /* InputState.swift in Sources */,
 				5B62A33D27AE7CC100A19448 /* ctlAboutWindow.swift in Sources */,
 				D47B92C027972AD100458394 /* main.swift in Sources */,
 				D44FB74D2792189A003C80A6 /* PhraseReplacementMap.mm in Sources */,
 				D4A13D5A27A59F0B003BE359 /* ctlInputMethod.swift in Sources */,
+				5BA9FD4827FEF3C9002DE248 /* PreferencesWindowController.swift in Sources */,
 				D4E569DC27A34D0E00AC2CEF /* KeyHandler.mm in Sources */,
+				5BA9FD4627FEF3C9002DE248 /* Container.swift in Sources */,
 				D47F7DD0278C0897002F9DD7 /* ctlNonModalAlertWindow.swift in Sources */,
 				5B62A32F27AE78B000A19448 /* CoreLM.mm in Sources */,
 				5BE78BE027B38804005EA1BE /* LMConsolidator.mm in Sources */,
 				D456576E279E4F7B00DF6BC9 /* KeyParser.swift in Sources */,
+				5BA9FD1027FEDB6B002DE248 /* suiPrefPaneKeyboard.swift in Sources */,
+				5BA9FD4327FEF3C8002DE248 /* Preferences.swift in Sources */,
+				5BA9FD4427FEF3C8002DE248 /* SegmentedControlStyleViewController.swift in Sources */,
 				D47F7DCE278BFB57002F9DD7 /* ctlPrefWindow.swift in Sources */,
+				5BA9FD4227FEF3C8002DE248 /* PreferencePane.swift in Sources */,
+				5BA9FD8B28006B41002DE248 /* VDKComboBox.swift in Sources */,
 				D47D73AC27A6CAE600255A50 /* AssociatedPhrases.mm in Sources */,
+				5BA9FD4A27FEF3C9002DE248 /* PreferencesTabViewController.swift in Sources */,
 				5B62A34A27AE7CD900A19448 /* NotifierController.swift in Sources */,
 				5B11328927B94CFB00E58451 /* AppleKeyboardConverter.swift in Sources */,
 				D41355DB278E6D17005E5CBD /* LMInstantiator.mm in Sources */,
 				5B62A32927AE77D100A19448 /* FSEventStreamHelper.swift in Sources */,
 				D47F7DD3278C1263002F9DD7 /* UserOverrideModel.cpp in Sources */,
 				5B62A33627AE795800A19448 /* mgrPrefs.swift in Sources */,
+				5BAEFAD028012565001F42C9 /* mgrLangModel.swift in Sources */,
 				5B62A33827AE79CD00A19448 /* NSStringUtils.swift in Sources */,
+				5BA9FD0F27FEDB6B002DE248 /* suiPrefPaneGeneral.swift in Sources */,
+				5BA9FD4927FEF3C9002DE248 /* Section.swift in Sources */,
+				5BA9FD3E27FEF3C8002DE248 /* Utilities.swift in Sources */,
+				5BA9FD1127FEDB6B002DE248 /* ctlPrefUI.swift in Sources */,
 				5B62A33227AE792F00A19448 /* InputSourceHelper.swift in Sources */,
 				5B5E535227EF261400C6AA1E /* IME.swift in Sources */,
 				5B62A34927AE7CD900A19448 /* TooltipController.swift in Sources */,
 				6A0D4F4515FC0EB100ABF4B3 /* Mandarin.cpp in Sources */,
 				5B62A34827AE7CD900A19448 /* ctlCandidateVertical.swift in Sources */,
+				5BA9FD4027FEF3C8002DE248 /* Localization.swift in Sources */,
+				5BA9FD1327FEDB6B002DE248 /* suiPrefPaneDictionary.swift in Sources */,
 				6ACC3D452793701600F1B140 /* ParselessLM.cpp in Sources */,
 				5BBBB77A27AEDC690023B93A /* clsSFX.swift in Sources */,
+				5BA9FD4727FEF3C9002DE248 /* PreferencesStyleController.swift in Sources */,
 				5BF8423127BAA942008E7E4C /* vChewingKanjiConverter.swift in Sources */,
 				5B62A34627AE7CD900A19448 /* ctlCandidateHorizontal.swift in Sources */,
 				5B62A34727AE7CD900A19448 /* ctlCandidate.swift in Sources */,
+				5BA9FD3F27FEF3C8002DE248 /* Pane.swift in Sources */,
 				5BB802DA27FABA8300CF1C19 /* ctlInputMethod_Menu.swift in Sources */,
 				D41355DE278EA3ED005E5CBD /* UserPhrasesLM.mm in Sources */,
 				6ACC3D3F27914F2400F1B140 /* KeyValueBlobReader.cpp in Sources */,
 				D41355D8278D74B5005E5CBD /* mgrLangModel.mm in Sources */,
+				5BDC1CFA27FDF1310052C2B9 /* apiUpdate.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -1317,6 +1434,7 @@
 					"$(OTHER_CFLAGS)",
 					"-fcxx-modules",
 				);
+				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
 			};
 			name = Debug;
 		};
@@ -1358,6 +1476,7 @@
 					"-fcxx-modules",
 				);
 				SWIFT_COMPILATION_MODE = wholemodule;
+				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
 			};
 			name = Release;
 		};
@@ -1423,7 +1542,7 @@
 				PROVISIONING_PROFILE_SPECIFIER = "";
 				SDKROOT = macosx;
 				SWIFT_OBJC_BRIDGING_HEADER = "Source/Headers/vChewing-Bridging-Header.h";
-				SWIFT_OPTIMIZATION_LEVEL = "-Osize";
+				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
 				SWIFT_VERSION = 5.0;
 				WRAPPER_EXTENSION = app;
 			};
@@ -1485,7 +1604,7 @@
 				PROVISIONING_PROFILE_SPECIFIER = "";
 				SDKROOT = macosx;
 				SWIFT_OBJC_BRIDGING_HEADER = "Source/Headers/vChewing-Bridging-Header.h";
-				SWIFT_OPTIMIZATION_LEVEL = "-Osize";
+				SWIFT_OPTIMIZATION_LEVEL = "-Onone";
 				SWIFT_VERSION = 5.0;
 				WRAPPER_EXTENSION = app;
 			};

vChewing.xcodeproj/xcshareddata/xcschemes/Data.xcscheme

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1320"
+   LastUpgradeVersion = "1330"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"

vChewing.xcodeproj/xcshareddata/xcschemes/vChewing.xcscheme

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1320"
+   LastUpgradeVersion = "1330"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"

vChewing.xcodeproj/xcshareddata/xcschemes/vChewingInstaller.xcscheme

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1320"
+   LastUpgradeVersion = "1330"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"

vChewing.xcodeproj/xcshareddata/xcschemes/vChewingPhraseEditor.xcscheme

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Scheme
-   LastUpgradeVersion = "1320"
+   LastUpgradeVersion = "1330"
    version = "1.3">
    <BuildAction
       parallelizeBuildables = "YES"