From 15e68c3ba13629c7c4a9011dd7a236384b033f5f Mon Sep 17 00:00:00 2001
From: Ross Brandes <ross.brandes@gmail.com>
Date: Mon, 15 Apr 2019 21:15:38 -0400
Subject: [PATCH] Make alt-enter insert new line on macOS

Alt-enter is a common macOS shortcut for inserting a new line in an
input that has a separate action tied to the enter key.

Signed-off-by: Ross Brandes <ross.brandes@gmail.com>
---
 src/components/views/rooms/MessageComposerInput.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/components/views/rooms/MessageComposerInput.js b/src/components/views/rooms/MessageComposerInput.js
index f71e208eb8..e54ddd6787 100644
--- a/src/components/views/rooms/MessageComposerInput.js
+++ b/src/components/views/rooms/MessageComposerInput.js
@@ -1041,7 +1041,8 @@ export default class MessageComposerInput extends React.Component {
     };
 
     handleReturn = (ev, change) => {
-        if (ev.shiftKey) {
+        const isMac = navigator.platform.toUpperCase().indexOf('MAC') >= 0;
+        if (ev.shiftKey || (isMac && ev.altKey)) {
             return change.insertText('\n');
         }