From 04cf2c63ff8114e237c7c067961a52c01755e00a Mon Sep 17 00:00:00 2001
From: Steven Silvester <steven.silvester@ieee.org>
Date: Mon, 16 Sep 2019 16:08:02 -0500
Subject: [PATCH] Backport PR #7202: Allow different mimetypes for the
 clipboard data

---
 packages/apputils/src/clipboard.ts | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/packages/apputils/src/clipboard.ts b/packages/apputils/src/clipboard.ts
index a85a1fdb31c8..7bbbfa79d4dc 100644
--- a/packages/apputils/src/clipboard.ts
+++ b/packages/apputils/src/clipboard.ts
@@ -3,6 +3,9 @@
 
 import { MimeData } from '@phosphor/coreutils';
 
+// 'string' is allowed so as to make it non-breaking for any 1.x releases
+export type ClipboardData = string | MimeData;
+
 /**
  * The clipboard interface.
  */
@@ -27,11 +30,17 @@ export namespace Clipboard {
    * #### Notes
    * This can only be called in response to a user input event.
    */
-  export function copyToSystem(text: string): void {
+  export function copyToSystem(clipboardData: ClipboardData): void {
     let node = document.body;
     let handler = (event: ClipboardEvent) => {
       let data = event.clipboardData || (window as any).clipboardData;
-      data.setData('text', text);
+      if (typeof clipboardData === 'string') {
+        data.setData('text', clipboardData);
+      } else {
+        (clipboardData as MimeData).types().map((mimeType: string) => {
+          data.setData(mimeType, clipboardData.getData(mimeType));
+        });
+      }
       event.preventDefault();
       node.removeEventListener('copy', handler);
     };