optimize code (#222)

Author: shuntian

src/editors/simple-slate-editor/index.js

@@ -13,7 +13,7 @@ import './style.css';
 
 const isMacOS = isMac();
 
-const SimpleSlateEditor = ({ value, editorApi, onSave, columns, onContentChanged, isSupportFormula, onExpandEditorToggle }) => {
+const SimpleSlateEditor = ({ value, focusEnd, editorApi, onSave, columns, onContentChanged, isSupportFormula, onExpandEditorToggle }) => {
   const [slateValue, setSlateValue] = useState(value);
 
   const editor = useMemo(() => withPropsEditor(baseEditor, { editorApi, onSave, columns }), [columns, editorApi, onSave]);
@@ -42,12 +42,22 @@ const SimpleSlateEditor = ({ value, editorApi, onSave, columns, onContentChanged
     const [firstNodeFirstChild] = firstNode.children;
     if (firstNodeFirstChild) {
       const startOfFirstNode = Editor.start(editor, [0, 0]);
-      const range = {
+      let range = {
         anchor: startOfFirstNode,
         focus: startOfFirstNode,
       };
+      if (focusEnd) {
+        const firstNode = editor.children[0];
+        const endOfFirstNode = Editor.end(editor, [0, firstNode.children.length - 1]);
+        range = {
+          anchor: endOfFirstNode,
+          focus: endOfFirstNode,
+        };
+      }
+
       focusEditor(editor, range);
     }
+  // eslint-disable-next-line react-hooks/exhaustive-deps
   }, []);
 
   // const focusEndNode = useCallback((editor) => {

src/pages/longtext-editor-dialog/index.js

@@ -15,6 +15,7 @@ export default function LongTextEditorDialog({
   value,
   autoSave = true,
   saveDelay = 60000,
+  focusEnd = false,
   isCheckBrowser = false,
   mathJaxSource,
   className,
@@ -130,6 +131,7 @@ export default function LongTextEditorDialog({
             <SimpleEditor
               ref={editorRef}
               value={value}
+              focusEnd={focusEnd}
               editorApi={editorApi}
               mathJaxSource={mathJaxSource}
               onContentChanged={onContentChanged}

src/pages/simple-editor.js

@@ -10,6 +10,7 @@ const SimpleEditor = forwardRef(({
   isInline,
   isFetching,
   value,
+  focusEnd = false,
   editorApi,
   mathJaxSource,
   onSave: propsOnSave,
@@ -50,6 +51,7 @@ const SimpleEditor = forwardRef(({
   const props = {
     isSupportFormula: !!mathJaxSource,
     value: richValue,
+    focusEnd,
     editorApi: editorApi,
     onSave: propsOnSave,
     onContentChanged: onContentChanged,
@@ -74,6 +76,7 @@ SimpleEditor.propTypes = {
   isInline: PropTypes.bool,
   isFetching: PropTypes.bool,
   value: PropTypes.string,
+  focusEnd: PropTypes.bool,
   editorApi: PropTypes.object,
   mathJaxSource: PropTypes.string,
   onSave: PropTypes.func,