1 files changed, 47 insertions, 34 deletions

diff --git a/vnext/src/ui/MessageInput.js b/vnext/src/ui/MessageInput.js
index 6003a15c..aa4454a1 100644
--- a/vnext/src/ui/MessageInput.js
+++ b/vnext/src/ui/MessageInput.js
@@ -1,56 +1,63 @@
-import { useState, useEffect, useRef } from 'react';
+import React, { useState, useEffect, useRef } from 'react';
 
 import Icon from './Icon';
 import Button from './Button';
 
 import UploadButton from './UploadButton';
+import toast from 'react-hot-toast';
 
 
 /**
  * StackOverflow-driven development: https://stackoverflow.com/a/10158364/1097384
- * @param {HTMLTextAreaElement} el
+ *
+ * @param {HTMLTextAreaElement & {createTextRange?: Function}} el element
  */
 function moveCaretToEnd(el) {
     if (typeof el.selectionStart == 'number') {
         el.selectionStart = el.selectionEnd = el.value.length;
-    // @ts-ignore
     } else if (typeof el.createTextRange != 'undefined') {
+        // Internet Explorer
         el.focus();
-        // @ts-ignore
         var range = el.createTextRange();
         range.collapse(false);
         range.select();
     }
 }
 
+
+/** @external Promise */
+
 /**
- * @typedef {Object} MessageInputProps
- * @property {string} text
- * @property {import('../api').Message=} data
- * @property {function} onSend
- * @property {number=} rows
- * @property {string} children
+ * @typedef {object} MessageInputProps
+ * @property {string} text text
+ * @property {function({body:string, attach:string | File}):Promise<boolean>} onSend onSend
+ * @property {number=} rows rows
+ * @property {string=} placeholder placeholder
  */
 
 /**
  * MessageInput
- * @param {React.ReactNode & MessageInputProps} props
+ *
+ * @param {React.ComponentProps<React.FC> & MessageInputProps} props props
  */
-export default function MessageInput({ text, data, rows, children, onSend }) {
+export default function MessageInput({ text, rows, placeholder, onSend }) {
     /**
-     * @type {React.MutableRefObject<HTMLTextAreaElement>}
+     * @type {React.MutableRefObject<HTMLTextAreaElement?>}
      */
-    let textareaRef = useRef();
+    let textareaRef = useRef(null);
     /**
-     * @type {React.MutableRefObject<HTMLInputElement>}
+     * @type {React.MutableRefObject<HTMLInputElement?>}
      */
-    let fileinput = useRef();
+    let fileinput = useRef(null);
 
     let updateFocus = () => {
         const isDesktop = window.matchMedia('(min-width: 62.5rem)');
         if (isDesktop.matches) {
-            textareaRef.current.focus();
-            moveCaretToEnd(textareaRef.current);
+            const textarea = textareaRef.current;
+            if (textarea) {
+                textarea.focus();
+                moveCaretToEnd(textarea);
+            }
         }
     };
     useEffect(() => {
@@ -72,37 +79,43 @@ export default function MessageInput({ text, data, rows, children, onSend }) {
     const textChanged = (event) => {
         setBody(event.target.value);
         const el = textareaRef.current;
-        const offset = el.offsetHeight - el.clientHeight;
-        const height = el.scrollHeight + offset;
-        el.style.height = `${height + offset}px`;
+        if (el) {
+            const offset = el.offsetHeight - el.clientHeight;
+            const height = el.scrollHeight + offset;
+            el.style.height = `${height + offset}px`;
+        }
     };
     const [attach, setAttach] = useState('');
     let uploadValueChanged = (attach) => {
         setAttach(attach);
     };
-    let onSubmit = (event) => {
+    let onSubmit = async (event) => {
         if (event.preventDefault) {
             event.preventDefault();
         }
         const input = fileinput.current;
-        onSend({
-            mid: data.mid,
-            rid: data.rid || 0,
-            body: body,
-            attach: attach ? input.files[0] : '',
-            to: data.to || {}
-        });
-        setAttach('');
-        setBody('');
-        textareaRef.current.style.height = '';
-        updateFocus();
+        if (input && input.files) {
+            if (await onSend({
+                body: body,
+                attach: attach ? input.files[0] : ''
+            })) {
+                setAttach('');
+                setBody('');
+                if (textareaRef.current) {
+                    textareaRef.current.style.height = '';
+                }
+                updateFocus();
+            } else {
+                toast('Can not update this message');
+            }
+        }
     };
     return (
         <form className="msg-comment-target" style={{ padding: '12px', width: '100%' }} onSubmit={onSubmit}>
             <div style={commentStyle}>
                 <textarea onChange={textChanged} onKeyPress={handleCtrlEnter}
                     ref={textareaRef} style={textInputStyle}
-                    rows={rows || 1} placeholder={children} value={body} />
+                    rows={rows || 1} placeholder={placeholder} value={body || ''} />
                 <div style={inputBarStyle}>
                     <UploadButton inputRef={fileinput} value={attach} onChange={uploadValueChanged} />
                     <Button onClick={onSubmit}><Icon name="ei-envelope" size="s" />Send</Button>