From 32f0f4bd7a463ddc12dacf14b71552963875bd6a Mon Sep 17 00:00:00 2001
From: tophf <tophf@gmx.com>
Date: Thu, 1 Feb 2018 23:51:30 +0300
Subject: [PATCH] preserve page scroll position after [de]beautification

---
 edit/beautify.js | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/edit/beautify.js b/edit/beautify.js
index cf86d86b..d667ecdf 100644
--- a/edit/beautify.js
+++ b/edit/beautify.js
@@ -46,8 +46,10 @@ function beautify(event) {
       scope.forEach(cm => {
         if (cm.beautifyChange && cm.beautifyChange[cm.changeGeneration()]) {
           delete cm.beautifyChange[cm.changeGeneration()];
+          const {scrollX, scrollY} = window;
           cm.undo();
           cm.scrollIntoView(cm.getCursor());
+          window.scrollTo(scrollX, scrollY);
           undoable |= cm.beautifyChange[cm.changeGeneration()];
         }
       });
@@ -71,7 +73,9 @@ function beautify(event) {
           for (let i = 0; i < pos.length; i += 2) {
             selections.push({anchor: pos[i], head: pos[i + 1]});
           }
+          const {scrollX, scrollY} = window;
           cm.setSelections(selections);
+          window.scrollTo(scrollX, scrollY);
           cm.beautifyChange[cm.changeGeneration()] = true;
           undoButton.disabled = false;
         }