From cadb2a6b3fea75c6a3793a1baa23705f457c2155 Mon Sep 17 00:00:00 2001
From: Hasinjato <hasinarak3@gmail.com>
Date: Tue, 12 May 2026 14:54:05 +0300
Subject: [PATCH] Undo botton to revert source code after edit

---
 .../kotlin/mg/dot/feufaro/ui/DrawerUI.kt      | 22 ++++++++++++++++++-
 1 file changed, 21 insertions(+), 1 deletion(-)

diff --git a/composeApp/src/commonMain/kotlin/mg/dot/feufaro/ui/DrawerUI.kt b/composeApp/src/commonMain/kotlin/mg/dot/feufaro/ui/DrawerUI.kt
index 30ac05c..7672c4f 100644
--- a/composeApp/src/commonMain/kotlin/mg/dot/feufaro/ui/DrawerUI.kt
+++ b/composeApp/src/commonMain/kotlin/mg/dot/feufaro/ui/DrawerUI.kt
@@ -106,6 +106,20 @@ fun MainScreenWithDrawer(
     val currentActiveFilePath = sharedScreenModel.activeFilePath.value
     val fileName = currentActiveFilePath.substringAfterLast('/')
 
+    var sourceTitle = sharedScreenModel.songTitle.value
+    val originalPath = remember(sourceTitle) {
+        if (!currentActiveFilePath.contains("_tmp") && !currentActiveFilePath.contains("/tmp/")) {
+            currentActiveFilePath
+        } else {
+            currentActiveFilePath
+        }
+    }
+
+    var sourceContent = sharedScreenModel.fileContent.value ?: ""
+    var codeContent by remember { mutableStateOf(sourceContent?: "") }
+    LaunchedEffect(sourceContent) {
+        codeContent = sourceContent
+    }
     val saveLauncher = rememberFileSaveLauncher { chosenPath ->
         if (chosenPath != null) {
             scope.launch(Dispatchers.IO) {
@@ -246,7 +260,13 @@ fun MainScreenWithDrawer(
                         ) {
                             FloatingActionButton(
                                 onClick = {
-                                    //sharedScreenModel.
+                                    scope.launch {
+                                        codeContent = sourceContent
+
+                                        withContext(Dispatchers.Main) {
+                                            solfaScreenModel.loadExternalFile(originalPath)
+                                        }
+                                    }
                                 }, modifier = Modifier.alpha(0.45f)
                             ) {
                                 Icon(