Unicode, Unicodemap and UCIS refactor (#21659)

1 files changed, 43 insertions, 0 deletions

diff --git a/quantum/unicode/unicodemap.c b/quantum/unicode/unicodemap.c
new file mode 100644
index 0000000000..2f618056a2
--- /dev/null
+++ b/quantum/unicode/unicodemap.c
@@ -0,0 +1,43 @@
+// Copyright 2023 QMK
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "unicodemap.h"
+#include "unicode.h"
+#include "keycodes.h"
+#include "quantum_keycodes.h"
+#include "modifiers.h"
+#include "host.h"
+#include "action_util.h"
+
+uint8_t unicodemap_index(uint16_t keycode) {
+    if (keycode >= QK_UNICODEMAP_PAIR) {
+        // Keycode is a pair: extract index based on Shift / Caps Lock state
+        uint16_t index;
+
+        uint8_t mods = get_mods() | get_weak_mods();
+#ifndef NO_ACTION_ONESHOT
+        mods |= get_oneshot_mods();
+#endif
+
+        bool shift = mods & MOD_MASK_SHIFT;
+        bool caps  = host_keyboard_led_state().caps_lock;
+        if (shift ^ caps) {
+            index = QK_UNICODEMAP_PAIR_GET_SHIFTED_INDEX(keycode);
+        } else {
+            index = QK_UNICODEMAP_PAIR_GET_UNSHIFTED_INDEX(keycode);
+        }
+
+        return index;
+    } else {
+        // Keycode is a regular index
+        return QK_UNICODEMAP_GET_INDEX(keycode);
+    }
+}
+
+uint32_t unicodemap_get_code_point(uint8_t index) {
+    return pgm_read_dword(unicode_map + index);
+}
+
+void register_unicodemap(uint8_t index) {
+    register_unicode(unicodemap_get_code_point(index));
+}