Repo // Simplify the processing of InputMode.

Source/3rdParty/OpenCCBridge/OpenCCBridge.swift

@@ -47,7 +47,7 @@ public class OpenCCBridge: NSObject {
   /// - Parameter string: Text in Original Script.
   /// - Returns: Text converted to Different Script.
   public static func crossConvert(_ string: String) -> String? {
-    switch ctlInputMethod.currentKeyHandler.inputMode {
+    switch IME.currentInputMode {
       case InputMode.imeModeCHS:
         return shared.traditionalize?.convert(string)
       case InputMode.imeModeCHT:

Source/Modules/ControllerModules/InputState.swift

@@ -201,7 +201,7 @@ class InputState {
       let selectedReadings = readings[literalMarkedRange]
       let joined = selectedReadings.joined(separator: "-")
       let exist = mgrLangModel.checkIfUserPhraseExist(
-        userPhrase: text, mode: ctlInputMethod.currentKeyHandler.inputMode, key: joined
+        userPhrase: text, mode: IME.currentInputMode, key: joined
       )
       if exist {
         deleteTargetExists = exist
@@ -292,7 +292,7 @@ class InputState {
       let selectedReadings = readings[literalMarkedRange]
       let joined = selectedReadings.joined(separator: "-")
       return mgrLangModel.checkIfUserPhraseExist(
-        userPhrase: text, mode: ctlInputMethod.currentKeyHandler.inputMode, key: joined
+        userPhrase: text, mode: IME.currentInputMode, key: joined
       )
     }
 

Source/Modules/ControllerModules/KeyHandler_Core.swift

@@ -26,12 +26,6 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 import Cocoa
 
-public enum InputMode: String {
-  case imeModeCHS = "org.atelierInmu.inputmethod.vChewing.IMECHS"
-  case imeModeCHT = "org.atelierInmu.inputmethod.vChewing.IMECHT"
-  case imeModeNULL = ""
-}
-
 // MARK: - Delegate.
 
 protocol KeyHandlerDelegate {
@@ -50,7 +44,6 @@ class KeyHandler {
   let kEpsilon: Double = 0.000001
   let kMaxComposingBufferNeedsToWalkSize: Int = 10
   var _composer: Tekkon.Composer = .init()
-  var _inputMode: String = ""
   var _languageModel: vChewing.LMInstantiator = .init()
   var _userOverrideModel: vChewing.LMUserOverride = .init()
   var _builder: Megrez.BlockReadingBuilder
@@ -58,46 +51,31 @@ class KeyHandler {
 
   var delegate: KeyHandlerDelegate?
 
-  var inputMode: InputMode {
-    get {
-      switch _inputMode {
-        case "org.atelierInmu.inputmethod.vChewing.IMECHS":
-          return InputMode.imeModeCHS
-        case "org.atelierInmu.inputmethod.vChewing.IMECHT":
-          return InputMode.imeModeCHT
-        default:
-          return InputMode.imeModeNULL
-      }
-    }
-    set {
+  var inputMode: InputMode = IME.currentInputMode {
+    willSet {
+      // 將新的簡繁輸入模式提報給 ctlInputMethod:
+      IME.currentInputMode = newValue
+      mgrPrefs.mostRecentInputMode = IME.currentInputMode.rawValue
+
       let isCHS: Bool = (newValue == InputMode.imeModeCHS)
+      // Reinitiate language models if necessary
+      _languageModel = isCHS ? mgrLangModel.lmCHS : mgrLangModel.lmCHT
+      _userOverrideModel = isCHS ? mgrLangModel.uomCHS : mgrLangModel.uomCHT
 
-      // 緊接著將新的簡繁輸入模式提報給 ctlInputMethod:
-      ctlInputMethod.currentInputMode = isCHS ? InputMode.imeModeCHS.rawValue : InputMode.imeModeCHT.rawValue
-      mgrPrefs.mostRecentInputMode = ctlInputMethod.currentInputMode
+      // Synchronize the sub-languageModel state settings to the new LM.
+      syncBaseLMPrefs()
 
-      // 拿當前的 _inputMode 與 ctlInputMethod 的提報結果對比，不同的話則套用新設定：
-      if _inputMode != ctlInputMethod.currentInputMode {
-        // Reinitiate language models if necessary
-        _languageModel = isCHS ? mgrLangModel.lmCHS : mgrLangModel.lmCHT
-        _userOverrideModel = isCHS ? mgrLangModel.uomCHS : mgrLangModel.uomCHT
-
-        // Synchronize the sub-languageModel state settings to the new LM.
-        syncBaseLMPrefs()
-
-        // Create new grid builder and clear the composer.
-        createNewBuilder()
-        _composer.clear()
-      }
-      // 直接寫到衛星模組內，省得類型轉換
-      _inputMode = ctlInputMethod.currentInputMode
+      // Create new grid builder and clear the composer.
+      createNewBuilder()
+      _composer.clear()
     }
   }
 
   public init() {
     _builder = Megrez.BlockReadingBuilder(lm: _languageModel, separator: "-")
     ensureParser()
-    inputMode = InputMode(rawValue: ctlInputMethod.currentInputMode) ?? InputMode.imeModeNULL
+    // 下面這句必須用 defer，否則不會觸發其 willSet 部分的內容。
+    defer { inputMode = IME.currentInputMode }
   }
 
   func clear() {

Source/Modules/IMEModules/IME.swift

@@ -28,10 +28,21 @@ import Cocoa
 // The namespace of this input method.
 public enum vChewing {}
 
+// The type of input modes.
+public enum InputMode: String {
+  case imeModeCHS = "org.atelierInmu.inputmethod.vChewing.IMECHS"
+  case imeModeCHT = "org.atelierInmu.inputmethod.vChewing.IMECHT"
+  case imeModeNULL = ""
+}
+
 public enum IME {
   static let arrSupportedLocales = ["en", "zh-Hant", "zh-Hans", "ja"]
   static let dlgOpenPath = NSOpenPanel()
 
+  // MARK: - 輸入法的當前的簡繁體中文模式是？
+
+  static var currentInputMode: InputMode = .init(rawValue: mgrPrefs.mostRecentInputMode) ?? .imeModeNULL
+
   // MARK: - 開關判定當前應用究竟是？
 
   static var areWeUsingOurOwnPhraseEditor: Bool = false
@@ -40,10 +51,10 @@ public enum IME {
 
   static func getInputMode(isReversed: Bool = false) -> InputMode {
     if isReversed {
-      return (ctlInputMethod.currentKeyHandler.inputMode == InputMode.imeModeCHT)
+      return (IME.currentInputMode == InputMode.imeModeCHT)
         ? InputMode.imeModeCHS : InputMode.imeModeCHT
     } else {
-      return ctlInputMethod.currentKeyHandler.inputMode
+      return IME.currentInputMode
     }
   }
 

Source/Modules/IMEModules/ctlInputMethod.swift

@@ -42,14 +42,6 @@ class ctlInputMethod: IMKInputController {
   private var keyHandler: KeyHandler = .init()
   private var state: InputState = .Empty()
 
-  // 想讓 KeyHandler 能夠被外界調查狀態與參數的話，就得對 KeyHandler 做常態處理。
-  // 這樣 InputState 可以藉由這個 ctlInputMethod 了解到當前的輸入模式是簡體中文還是繁體中文。
-  // 然而，要是直接對 keyHandler 做常態處理的話，反而會導致 InputSignal 無法協同處理。
-  // 所以才需要「currentKeyHandler」這個假 KeyHandler。
-  // 這個「currentKeyHandler」僅用來讓其他模組知道當前的輸入模式是什麼模式，除此之外別無屌用。
-  static var currentKeyHandler: KeyHandler = .init()
-  @objc static var currentInputMode = mgrPrefs.mostRecentInputMode
-
   // MARK: - Keyboard Layout Specifier
 
   @objc func setKeyLayout() {
@@ -123,7 +115,7 @@ class ctlInputMethod: IMKInputController {
     }
 
     // 讓外界知道目前的簡繁體輸入模式。
-    ctlInputMethod.currentKeyHandler.inputMode = keyHandler.inputMode
+    IME.currentInputMode = keyHandler.inputMode
   }
 
   // MARK: - IMKServerInput protocol methods

Source/UI/CandidateUI/ctlCandidateUniversal.swift

@@ -178,7 +178,7 @@ private class vwrCandidateUniversal: NSView {
             if index == highlightedIndex {
               let colorBlendAmount: CGFloat = IME.isDarkMode() ? 0.25 : 0
               // The background color of the highlightened candidate
-              switch ctlInputMethod.currentKeyHandler.inputMode {
+              switch IME.currentInputMode {
                 case InputMode.imeModeCHS:
                   NSColor.systemRed.blended(
                     withFraction: colorBlendAmount,
@@ -202,7 +202,7 @@ private class vwrCandidateUniversal: NSView {
             } else {
               NSColor.controlBackgroundColor.setFill()
             }
-            switch ctlInputMethod.currentKeyHandler.inputMode {
+            switch IME.currentInputMode {
               case InputMode.imeModeCHS:
                 if #available(macOS 12.0, *) {
                   activeCandidateAttr[.languageIdentifier] = "zh-Hans" as AnyObject
@@ -248,7 +248,7 @@ private class vwrCandidateUniversal: NSView {
             if index == highlightedIndex {
               let colorBlendAmount: CGFloat = IME.isDarkMode() ? 0.25 : 0
               // The background color of the highlightened candidate
-              switch ctlInputMethod.currentKeyHandler.inputMode {
+              switch IME.currentInputMode {
                 case InputMode.imeModeCHS:
                   NSColor.systemRed.blended(
                     withFraction: colorBlendAmount,
@@ -272,7 +272,7 @@ private class vwrCandidateUniversal: NSView {
             } else {
               NSColor.controlBackgroundColor.setFill()
             }
-            switch ctlInputMethod.currentKeyHandler.inputMode {
+            switch IME.currentInputMode {
               case InputMode.imeModeCHS:
                 if #available(macOS 12.0, *) {
                   activeCandidateAttr[.languageIdentifier] = "zh-Hans" as AnyObject