From 9c3d59743dc0780b2f8c777ff7c4a637bfb48ce4 Mon Sep 17 00:00:00 2001
From: ShikiSuen <shikisuen@outlook.com>
Date: Sat, 26 Mar 2022 18:50:58 +0800
Subject: [PATCH] IME // Add modifier key press variables.

---
 Source/Modules/IME.swift | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/Source/Modules/IME.swift b/Source/Modules/IME.swift
index 8a0fa85a..5f898e26 100644
--- a/Source/Modules/IME.swift
+++ b/Source/Modules/IME.swift
@@ -19,6 +19,18 @@ TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR TH
 import Cocoa
 
 @objc public class IME: NSObject {
+    // 直接在 AppleKeyboardConverter 內使用 KeyParser 判定修飾鍵狀態的話，會出現蛇吞自己尾巴的現象。
+    // 所以就藉由 ctlInputMethod 的這幾個常態變數來判斷。
+    // 這裡不會列出全部的 modifier flags，只會列出可能會影響符號輸入的 flags、主要用於 AppleKeyboardConverter。
+    @objc static var isOptionPressed: Bool = false
+    @objc static var isShiftPressed: Bool = false
+    @objc static var isCapsLockOn: Bool = false
+    @objc static var isCommandPressed: Bool = false
+    @objc static var isNumericPad: Bool = false
+    @objc static var isFunction: Bool = false
+
+    // MARK: - Functions
+
     // Print debug information to the console.
     @objc static func prtDebugIntel(_ strPrint: String) {
         if mgrPrefs.isDebugModeEnabled {