From 8ea4e8c03ac9d3587f592366d31a60f064aecd68 Mon Sep 17 00:00:00 2001
From: Roman Rodionov <roman_rodionov@epam.com>
Date: Wed, 31 Jan 2024 16:25:20 +0100
Subject: [PATCH] #3967 - Exception if you paste from clipboard using
 Ctrl+Alt+V (Smile insert)

- added fallback to old clipboard api for smarts
---
 .../src/script/ui/state/hotkeys.ts            | 24 +++++++++++++------
 1 file changed, 17 insertions(+), 7 deletions(-)

diff --git a/packages/ketcher-react/src/script/ui/state/hotkeys.ts b/packages/ketcher-react/src/script/ui/state/hotkeys.ts
index 7513110cff..1ee6e1cd71 100644
--- a/packages/ketcher-react/src/script/ui/state/hotkeys.ts
+++ b/packages/ketcher-react/src/script/ui/state/hotkeys.ts
@@ -354,13 +354,23 @@ async function safelyGetMimeType(
 async function getStructStringFromClipboardData(
   data: ClipboardItem[],
 ): Promise<string> {
-  const clipboardItem = data[0] as ClipboardItem;
-  const structStr =
-    (await safelyGetMimeType(clipboardItem, `web ${ChemicalMimeType.KET}`)) ||
-    (await safelyGetMimeType(clipboardItem, `web ${ChemicalMimeType.Mol}`)) ||
-    (await safelyGetMimeType(clipboardItem, `web ${ChemicalMimeType.Rxn}`)) ||
-    (await safelyGetMimeType(clipboardItem, 'text/plain'));
-  return structStr === '' ? '' : structStr.text();
+  const clipboardItem = data[0];
+
+  if (clipboardItem instanceof ClipboardItem) {
+    const structStr =
+      (await safelyGetMimeType(clipboardItem, `web ${ChemicalMimeType.KET}`)) ||
+      (await safelyGetMimeType(clipboardItem, `web ${ChemicalMimeType.Mol}`)) ||
+      (await safelyGetMimeType(clipboardItem, `web ${ChemicalMimeType.Rxn}`)) ||
+      (await safelyGetMimeType(clipboardItem, 'text/plain'));
+    return structStr === '' ? '' : structStr.text();
+  } else {
+    return (
+      data[ChemicalMimeType.KET] ||
+      data[ChemicalMimeType.Mol] ||
+      data[ChemicalMimeType.Rxn] ||
+      data['text/plain']
+    );
+  }
 }
 
 function isAbleToCopy(editor: Editor): boolean {