前の変換候補を選択するキーバインドを登録可能にする

macSKK/KeyBinding.swift

@@ -31,6 +31,8 @@ struct KeyBinding: Identifiable, Hashable {
         case enter
         /// デフォルトはSpaceキー
         case space
+        /// 前の変換候補に移動する。デフォルトはxキー。
+        case backwardCandidate
         /// 補完候補の確定用。デフォルトはTabキー
         case tab
         /// デフォルトはBackspaceキーとCtrl-hキー
@@ -316,6 +318,8 @@ struct KeyBinding: Identifiable, Hashable {
                 return KeyBinding(action, [Input(key: .code(0x24), modifierFlags: [], optionalModifierFlags: [.shift, .option])])
             case .space:
                 return KeyBinding(action, [Input(key: .code(0x31), modifierFlags: [])])
+            case .backwardCandidate:
+                return KeyBinding(action, [Input(key: .character("x"), modifierFlags: [])])
             case .tab:
                 return KeyBinding(action, [Input(key: .code(0x30), modifierFlags: [], optionalModifierFlags: .shift)])
             case .backspace:

macSKK/KeyBindingSet.swift

@@ -52,18 +52,24 @@ struct KeyBindingSet: Identifiable, Hashable {
         guard let id = dict["id"] as? String, let keyBindings = dict["keyBindings"] as? [[String: Any]], let version = dict["version"] as? Int else {
             return nil
         }
+        var values: [KeyBinding] = []
         if version != Self.serializeVersion {
-            logger.error("シリアライズバージョンが合わないためキーバインド \(id, privacy: .public) が読み込めません。(現在: \(Self.serializeVersion), 環境設定: \(version)")
+            logger.error("シリアライズバージョンが合わないためキーバインド \(id, privacy: .public) が読み込めません。(現在: \(Self.serializeVersion), 環境設定: \(version))")
             return nil
         }
-        var values: [KeyBinding] = []
         for dict in keyBindings {
             guard let keyBinding = KeyBinding(dict: dict) else {
                 logger.warning("キーバインド \(id, privacy: .public) の読み込みに失敗しました")
                 return nil
             }
             values.append(keyBinding)
         }
+        // 不足しているキーバインドがあればデフォルト値を設定する
+        KeyBinding.defaultKeyBindingSettings.forEach { keyBinding in
+            if values.allSatisfy({ $0.action != keyBinding.action }) {
+                values.append(keyBinding)
+            }
+        }
         self.init(id: id, values: values)
     }
 

macSKK/StateMachine.swift

@@ -340,7 +340,7 @@ final class StateMachine {
         case .eisu:
             // 何もしない (OSがIMEの切り替えはしてくれる)
             return true
-        case .unregister, nil:
+        case .unregister, .backwardCandidate, nil:
             break
         }
 
@@ -738,7 +738,7 @@ final class StateMachine {
             return true
         case .abbrev, .up, .down, .registerPaste, .eisu, .kana:
             return true
-        case .unregister, .none:
+        case .unregister, .backwardCandidate, .none:
             break
         }
 
@@ -1063,6 +1063,8 @@ final class StateMachine {
             }
             updateMarkedText()
             return true
+        case .backwardCandidate:
+            return handleSelectingPrevious(diff: -1, selecting: selecting)
         case .tab:
             return true
         case .stickyShift, .hiragana, .hankakuKana:
@@ -1139,9 +1141,7 @@ final class StateMachine {
         }
 
         if let input = action.event.charactersIgnoringModifiers {
-            if input == "x" {
-                return handleSelectingPrevious(diff: -1, selecting: selecting)
-            } else if input == "." && action.shiftIsPressed() {
+            if input == "." && action.shiftIsPressed() {
                 // 選択中候補で確定し、接尾辞入力に移行。
                 // カーソル位置より右に文字列がある場合は接頭辞入力として扱う (無視してもいいかも)
                 addWordToUserDict(yomi: selecting.yomi, okuri: selecting.okuri, candidate: selecting.candidates[selecting.candidateIndex])

macSKK/en.lproj/Localizable.strings

@@ -97,6 +97,7 @@
 "KeyBindingActionStickyshift" = "Sticky Shift";
 "KeyBindingActionEnter" = "Enter";
 "KeyBindingActionSpace" = "Space";
+"KeyBindingActionBackwardcandidate" = "Select backward candidate";
 "KeyBindingActionTab" = "Tab";
 "KeyBindingActionBackspace" = "Backspace";
 "KeyBindingActionDelete" = "Delete";

macSKK/ja.lproj/Localizable.strings

@@ -97,6 +97,7 @@
 "KeyBindingActionStickyshift" = "Sticky Shift";
 "KeyBindingActionEnter" = "Enter";
 "KeyBindingActionSpace" = "Space";
+"KeyBindingActionBackwardcandidate" = "前の変換候補を選択";
 "KeyBindingActionTab" = "Tab";
 "KeyBindingActionBackspace" = "Backspace";
 "KeyBindingActionDelete" = "Delete";

macSKKTests/StateMachineTests.swift

@@ -234,16 +234,19 @@ final class StateMachineTests: XCTestCase {
     @MainActor func testHandleNormalPrintable() {
         let stateMachine = StateMachine(initialState: IMEState(inputMode: .direct))
         let expectation = XCTestExpectation()
-        stateMachine.inputMethodEvent.collect(3).sink { events in
+        stateMachine.inputMethodEvent.collect(4).sink { events in
             XCTAssertEqual(events[0], .fixedText("c"))
             XCTAssertEqual(events[1], .fixedText("C"))
             XCTAssertEqual(events[2], .fixedText("X"))
+            XCTAssertEqual(events[3], .fixedText("x"))
             expectation.fulfill()
         }.store(in: &cancellables)
         XCTAssertTrue(stateMachine.handle(printableKeyEventAction(character: "c")))
         XCTAssertTrue(stateMachine.handle(printableKeyEventAction(character: "c", withShift: true)))
         // 変換候補選択画面で登録解除へ遷移するキー。Normalではなにも起きない
         XCTAssertTrue(stateMachine.handle(printableKeyEventAction(character: "x", withShift: true)))
+        // 変換候補選択画面で前の候補へ遷移するキー。Normalではなにも起きない
+        XCTAssertTrue(stateMachine.handle(printableKeyEventAction(character: "x")))
         wait(for: [expectation], timeout: 1.0)
     }
 
@@ -2979,7 +2982,7 @@ final class StateMachineTests: XCTestCase {
         case "q":
             return withShift ? .japanese : .toggleKana
         case "x":
-            return withShift ? .unregister : nil
+            return withShift ? .unregister : .backwardCandidate
         case ";":
             return withShift ? nil : .stickyShift
         case "/":