From 3be5038c14c28b91e7c96e9452647e25a336985b Mon Sep 17 00:00:00 2001
From: David Luzar <luzar.david@gmail.com>
Date: Mon, 7 Dec 2020 19:22:20 +0100
Subject: [PATCH] Revert "Remove native gesture "support" from iOS (#2457)"
 (#2483)

This reverts commit 2b6d1470f936bfae113fc4765988b20e7db35bbb.
---
 src/components/App.tsx | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/src/components/App.tsx b/src/components/App.tsx
index 18b873e9..28dc6b76 100644
--- a/src/components/App.tsx
+++ b/src/components/App.tsx
@@ -1407,14 +1407,30 @@ class App extends React.Component<ExcalidrawProps, AppState> {
 
   private onGestureStart = withBatchedUpdates((event: GestureEvent) => {
     event.preventDefault();
+    this.setState({
+      selectedElementIds: {},
+    });
+    gesture.initialScale = this.state.zoom.value;
   });
 
   private onGestureChange = withBatchedUpdates((event: GestureEvent) => {
     event.preventDefault();
+    this.setState(({ zoom }) => ({
+      zoom: getNewZoom(
+        getNormalizedZoom(gesture.initialScale! * event.scale),
+        zoom,
+        { x: cursorX, y: cursorY },
+      ),
+    }));
   });
 
   private onGestureEnd = withBatchedUpdates((event: GestureEvent) => {
     event.preventDefault();
+    this.setState({
+      previousSelectedElementIds: {},
+      selectedElementIds: this.state.previousSelectedElementIds,
+    });
+    gesture.initialScale = null;
   });
 
   private handleTextWysiwyg(