From 4d67fdbd6824615b6f7abd5a984bbc29e2945244 Mon Sep 17 00:00:00 2001
From: jlempen <info@jlempen.com>
Date: Sun, 12 Feb 2023 21:10:38 +0100
Subject: [PATCH] Prevent switching layout in terminal mode
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
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Add new override for the getCurrentGroup() function in order to prevent the on-screen keyboard from switching to the ùs-extended.json` layout in terminal mode, as our layout is already extended now.
---
 src/extension.js | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/src/extension.js b/src/extension.js
index 8d4c67d..a4c63e2 100644
--- a/src/extension.js
+++ b/src/extension.js
@@ -11,6 +11,7 @@ let _oskA11yApplicationsSettings;
 let backup_lastDeviceIsTouchScreen;
 let backup_relayout;
 let backup_touchMode;
+let backup_getCurrentGroup;
 let currentSeat;
 let _indicator;
 let settings;
@@ -78,10 +79,28 @@ function override_relayout() {
   }
 }
 
+function override_getCurrentGroup() {
+  // Special case for Korean, if Hangul mode is disabled, use the 'us' keymap
+  if (this._currentSource.id === 'hangul') {
+      const inputSourceManager = InputSourceManager.getInputSourceManager();
+      const currentSource = inputSourceManager.currentSource;
+      let prop;
+      for (let i = 0; (prop = currentSource.properties.get(i)) !== null; ++i) {
+          if (prop.get_key() === 'InputMode' &&
+              prop.get_prop_type() === IBus.PropType.TOGGLE &&
+              prop.get_state() !== IBus.PropState.CHECKED)
+              return 'us';
+      }
+  }
+  return this._currentSource.xkbId;
+}
+
 function enable_overrides() {
   Keyboard.Keyboard.prototype["_relayout"] = override_relayout;
   Keyboard.KeyboardManager.prototype["_lastDeviceIsTouchscreen"] =
     override_lastDeviceIsTouchScreen;
+  Keyboard.KeyboardController.prototype["getCurrentGroup"] = 
+    override_getCurrentGroup;
 
   // Unregister original osk layouts resource file
   getDefaultLayouts()._unregister();
@@ -94,6 +113,8 @@ function disable_overrides() {
   Keyboard.Keyboard.prototype["_relayout"] = backup_relayout;
   Keyboard.KeyboardManager.prototype["_lastDeviceIsTouchscreen"] =
     backup_lastDeviceIsTouchScreen;
+  Keyboard.KeyboardController.prototype["getCurrentGroup"] = 
+    backup_getCurrentGroup;
 
   // Unregister modified osk layouts resource file
   getModifiedLayouts()._unregister();
@@ -140,6 +161,9 @@ function init() {
   backup_lastDeviceIsTouchScreen =
     Keyboard.KeyboardManager._lastDeviceIsTouchscreen;
 
+  backup_getCurrentGroup =
+    Keyboard.KeyboardController.getCurrentGroup;
+
   currentSeat = Clutter.get_default_backend().get_default_seat();
   backup_touchMode = currentSeat.get_touch_mode;
 }