Removed delete message option for message and allowed empty content during editing message

Author: KshitizSareen

src/action-sheets/index.js

@@ -697,7 +697,7 @@ export const constructMessageActionButtons = (args: {|
   if (message.isOutbox === true) {
     buttons.push(copyToClipboard);
     buttons.push(shareMessage);
-    buttons.push(deleteMessage);
+    // buttons.push(deleteMessage);
     buttons.push(cancel);
     return buttons;
   }
@@ -726,8 +726,12 @@ export const constructMessageActionButtons = (args: {|
   ) {
     buttons.push(editMessage);
   }
-  if (message.sender_id === ownUser.user_id && messageNotDeleted(message)) {
+  if (message.sender_id === ownUser.user_id  && messageNotDeleted(message)) {
     // TODO(#2793): Don't show if message isn't deletable.
+    // buttons.push(deleteMessage);
+  }
+  if (ownUser.role === 200 && messageNotDeleted(message))
+  {
     buttons.push(deleteMessage);
   }
   if (

src/chat/ChatScreen.js

@@ -131,7 +131,10 @@ export default function ChatScreen(props: Props): Node {
 
   const { narrow, editMessage } = route.params;
   const setEditMessage = useCallback(
-    (value: EditMessage | null) => navigation.setParams({ editMessage: value }),
+    (value: EditMessage | null) =>
+    {
+      navigation.setParams({ editMessage: value });
+  },
     [navigation],
   );
 
@@ -164,7 +167,7 @@ export default function ChatScreen(props: Props): Node {
           () => undefined,
         );
 
-        if ((content !== undefined && content !== '') || (topic !== undefined && topic !== '')) {
+        if ((content !== undefined) || (topic !== undefined && topic !== '')) {
           api.updateMessage(auth, editMessage.id, { content, subject: topic }).catch(error => {
             showErrorAlert(_('Failed to edit message'), error.message);
           });

src/compose/ComposeBox.js

@@ -549,7 +549,10 @@ const ComposeBox: React$AbstractComponent<Props, ImperativeHandle> = forwardRef(
     }
 
     if (messageInputValue.trim().length === 0) {
+      if (!isEditing)
+      {
       result.push('message-empty');
+      }
     }
 
     if (numUploading > 0) {
@@ -561,19 +564,12 @@ const ComposeBox: React$AbstractComponent<Props, ImperativeHandle> = forwardRef(
     }
 
     return result;
-  }, [
-    destinationNarrow,
-    mandatoryTopics,
-    numUploading,
-    anyQuoteAndReplyInProgress,
-    messageInputState,
-  ]);
+  }, [messageInputState, destinationNarrow, mandatoryTopics, numUploading, anyQuoteAndReplyInProgress, isEditing]);
 
   const submitButtonDisabled = validationErrors.length > 0;
 
   const handleSubmit = useCallback(() => {
     const { value: messageInputValue } = messageInputState;
-
     if (validationErrors.length > 0) {
       const msg = validationErrors
         .map(error => {