From 64ffbc142e37cb8b58fefc20050b7c94f6f021c7 Mon Sep 17 00:00:00 2001
From: anijanyan <amirjanyanani@gmail.com>
Date: Sun, 29 Dec 2024 18:39:05 +0400
Subject: [PATCH] aligned_diff style by default is solid gray instead of zebra,
 fold syncing

---
 diff0/styles.css | 15 ++++++++-------
 diff0/twoway.js  | 38 +++++++++++++++++++++++++++++++++-----
 2 files changed, 41 insertions(+), 12 deletions(-)

diff --git a/diff0/styles.css b/diff0/styles.css
index bd8c0ea2ff..3a95f313ba 100644
--- a/diff0/styles.css
+++ b/diff0/styles.css
@@ -96,13 +96,14 @@
     background-color: rgba(255, 128, 79, 0.26);
 }
 .ace_diff.aligned_diff.inline:after {
-    background: repeating-linear-gradient(
-            45deg,          /* Angle of the stripes */
-            rgba(122, 111, 108, 0.26),        /* First color */
-            rgba(122, 111, 108, 0.26) 5px,   /* Stripe width */
-            #FFFFFF 5px,   /* Second color starts */
-            #FFFFFF 10px    /* Second stripe width */
-    );
+    background: rgba(206, 194, 191, 0.26);
+    /*background: repeating-linear-gradient(*/
+    /*        45deg,          !* Angle of the stripes *!*/
+    /*        rgba(122, 111, 108, 0.26),        !* First color *!*/
+    /*        rgba(122, 111, 108, 0.26) 5px,   !* Stripe width *!*/
+    /*        #FFFFFF 5px,   !* Second color starts *!*/
+    /*        #FFFFFF 10px    !* Second stripe width *!*/
+    /*);*/
 }
 
 .ace_diff.delete.inline.empty {
diff --git a/diff0/twoway.js b/diff0/twoway.js
index 4f3436c4b5..188618e7a5 100644
--- a/diff0/twoway.js
+++ b/diff0/twoway.js
@@ -417,14 +417,43 @@ class DiffView {
     }
 
     onChangeFold(ev, session) {
-        if (ev.action == "remove") {
-            var other = session == this.orig.session ? this.edit.session : this.orig.session;
-            var fold = ev.data;
-            if (fold && fold.other) {
+        var fold = ev.data;
+        if (this.$syncFold || !fold || !ev.action)
+            return;
+
+        const isOrig = session === this.orig.session;
+        const other = isOrig ? this.edit.session : this.orig.session;
+
+        if (ev.action === "remove") {
+            if (fold.other) {
                 fold.other.other = null;
                 other.removeFold(fold.other);
+            } else if (fold.lineWidget) {
+                other.widgetManager.addLineWidget(fold.lineWidget);
+                fold.lineWidget = null;
+                other.$editor.renderer.updateBackMarkers();
             }
         }
+
+       if (ev.action === "add") {
+           const range = this.transformRange(fold.range, isOrig);
+           if (range.isEmpty()) {
+               const row = range.start.row + 1;
+               if (other.lineWidgets[row]) {
+                   fold.lineWidget = other.lineWidgets[row];
+                   other.widgetManager.removeLineWidget(fold.lineWidget);
+                   other.$editor.renderer.updateBackMarkers();
+               }
+           } else {
+               this.$syncFold = true;
+
+               fold.other = other.addFold("---", range);
+               fold.other.other = fold;
+
+               this.$syncFold = false;
+
+           }
+       }
     }
 
     $attachEditorsEventHandlers() {
@@ -639,7 +668,6 @@ class SyncSelectionMarker {
 
         this.range = newRange;
     }
-
 }
 
 class DiffHighlight {