From aaa8cb5a37a720ff67792d0a31fec793b03b3742 Mon Sep 17 00:00:00 2001
From: Erik Kundiman <erik@megapahit.org>
Date: Mon, 29 Jan 2024 17:42:38 +0800
Subject: First attempt to fix unicode input

It should work well enough with most, but on Japanese (I assume all CJK),
for now the composition part is still left printed out along with the result
(as opposed to just replaced by the result). It's to be fixed next.
---
 indra/llui/lllineeditor.cpp | 45 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 45 insertions(+)

(limited to 'indra/llui/lllineeditor.cpp')

diff --git a/indra/llui/lllineeditor.cpp b/indra/llui/lllineeditor.cpp
index 60dbfd68c6..34d08b99de 100644
--- a/indra/llui/lllineeditor.cpp
+++ b/indra/llui/lllineeditor.cpp
@@ -1009,6 +1009,21 @@ void LLLineEditor::addChar(const llwchar uni_char)
 	getWindow()->hideCursorUntilMouseMove();
 }
 
+void LLLineEditor::addString(char *s)
+{
+	if (hasSelection())
+		deleteSelection();
+	else if (LL_KIM_OVERWRITE == gKeyboard->getInsertMode()) {
+		if (!prevalidateInput(mText.getWString()
+					.substr(getCursor(), 1)))
+			return;
+		mText.erase(getCursor(), 1);
+	}
+	mText.insert(getCursor(), utf8str_to_wstring(s));
+	setCursor(getCursor() + 1);
+	getWindow()->hideCursorUntilMouseMove();
+}
+
 // Extends the selection box to the new cursor position
 void LLLineEditor::extendSelection( S32 new_cursor_pos )
 {
@@ -1650,6 +1665,36 @@ BOOL LLLineEditor::handleUnicodeCharHere(llwchar uni_char)
 	return handled;
 }
 
+BOOL LLLineEditor::handleUnicodeStringHere(char *uni_str)
+{
+	auto handled = FALSE;
+
+	if ((gFocusMgr.getKeyboardFocus() == this)
+			&& getVisible() && !mReadOnly) {
+		handled = TRUE;
+		LLLineEditorRollback rollback(this);
+
+		addString(uni_str);
+
+		mKeystrokeTimer.reset();
+		deselect();
+		auto need_to_rollback = FALSE;
+		need_to_rollback |= (mPrevalidateFunc
+				&& !mPrevalidateFunc(mText.getWString()));
+
+		if (need_to_rollback) {
+			rollback.doRollback(this);
+			LLUI::getInstance()->reportBadKeystroke();
+		}
+
+		if (!need_to_rollback && handled) {
+			onKeystroke();
+			mSpellCheckTimer.setTimerExpirySec(SPELLCHECK_DELAY);
+		}
+	}
+
+	return handled;
+}
 
 BOOL LLLineEditor::canDoDelete() const
 {
-- 
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