From 29b4b665dc12eb613b68e657a28d93fc5ee0f51e Mon Sep 17 00:00:00 2001
From: Jules Aguillon
Date: Thu, 25 Jul 2024 23:40:58 +0200
Subject: Allow Ctrl modmaps in layouts

The 'ctrl' modmap is different from the other modmaps as it also applies
the built-in Ctrl modifier to the resulting character, even if it was
first modified by the custom modmap.

For example, this will map Ctrl+в to Ctrl+V (not to v):

    <ctrl a="в" b="v"/>

This is intended to add keyboard shortcuts in non-latin layouts.

A caveat is that the latin character appears on the keyboard while Ctrl
is activated.
---
 srcs/juloo.keyboard2/KeyModifier.java | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

(limited to 'srcs/juloo.keyboard2/KeyModifier.java')

diff --git a/srcs/juloo.keyboard2/KeyModifier.java b/srcs/juloo.keyboard2/KeyModifier.java
index 8d5fbbb..0ea80ab 100644
--- a/srcs/juloo.keyboard2/KeyModifier.java
+++ b/srcs/juloo.keyboard2/KeyModifier.java
@@ -51,7 +51,7 @@ public final class KeyModifier
   {
     switch (mod)
     {
-      case CTRL:
+      case CTRL: return apply_ctrl(k);
       case ALT:
       case META: return turn_into_keyevent(k);
       case FN: return apply_fn(k);
@@ -440,6 +440,19 @@ public final class KeyModifier
     }
   }
 
+  private static KeyValue apply_ctrl(KeyValue k)
+  {
+    if (_modmap != null)
+    {
+      KeyValue mapped = _modmap.ctrl.get(k);
+      // Do not return the modified character right away, first turn it into a
+      // key event.
+      if (mapped != null)
+        k = mapped;
+    }
+    return turn_into_keyevent(k);
+  }
+
   private static KeyValue turn_into_keyevent(KeyValue k)
   {
     if (k.getKind() != KeyValue.Kind.Char)
-- 
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