fix: title in option not work (#833)

* test: fix title missing

* test: add test case

* chore: clean lint rule

.eslintrc.js

@@ -9,5 +9,6 @@ module.exports = {
     'react/sort-comp': 0,
     'jsx-a11y/interactive-supports-focus': 0,
     'jsx-a11y/no-autofocus': 0,
+    'react/no-unknown-property': 0,
   },
 };

src/BaseSelect.tsx

@@ -61,6 +61,7 @@ export interface DisplayValueType {
   key?: React.Key;
   value?: RawValueType;
   label?: React.ReactNode;
+  title?: string | number;
   disabled?: boolean;
 }
 

src/Select.tsx

@@ -247,6 +247,7 @@ const Select = React.forwardRef(
           let rawLabel: React.ReactNode;
           let rawKey: React.Key;
           let rawDisabled: boolean | undefined;
+          let rawTitle: string;
 
           // Fill label & value
           if (isRawValue(val)) {
@@ -264,6 +265,7 @@ const Select = React.forwardRef(
               rawLabel = option?.[optionLabelProp || mergedFieldNames.label];
             if (rawKey === undefined) rawKey = option?.key ?? rawValue;
             rawDisabled = option?.disabled;
+            rawTitle = option?.title;
 
             // Warning if label not same as provided
             if (process.env.NODE_ENV !== 'production' && !optionLabelProp) {
@@ -279,6 +281,7 @@ const Select = React.forwardRef(
             value: rawValue,
             key: rawKey,
             disabled: rawDisabled,
+            title: rawTitle,
           };
         });
       },

src/Selector/MultipleSelector.tsx

@@ -8,6 +8,7 @@ import type { InnerSelectorProps } from '.';
 import Input from './Input';
 import useLayoutEffect from '../hooks/useLayoutEffect';
 import type { DisplayValueType, RenderNode, CustomTagProps, RawValueType } from '../BaseSelect';
+import { getTitle } from '../utils/commonUtil';
 
 function itemKey(value: DisplayValueType) {
   return value.key ?? value.value;
@@ -89,7 +90,7 @@ const SelectSelector: React.FC<SelectorProps> = (props) => {
   // ===================== Render ======================
   // >>> Render Selector Node. Includes Item & Rest
   function defaultRenderSelector(
-    title: React.ReactNode,
+    item: DisplayValueType,
     content: React.ReactNode,
     itemDisabled: boolean,
     closable?: boolean,
@@ -100,9 +101,7 @@ const SelectSelector: React.FC<SelectorProps> = (props) => {
         className={classNames(`${selectionPrefixCls}-item`, {
           [`${selectionPrefixCls}-item-disabled`]: itemDisabled,
         })}
-        title={
-          typeof title === 'string' || typeof title === 'number' ? title.toString() : undefined
-        }
+        title={getTitle(item)}
       >
         <span className={`${selectionPrefixCls}-item-content`}>{content}</span>
         {closable && (
@@ -167,7 +166,7 @@ const SelectSelector: React.FC<SelectorProps> = (props) => {
 
     return typeof tagRender === 'function'
       ? customizeRenderSelector(value, displayLabel, itemDisabled, closable, onClose)
-      : defaultRenderSelector(label, displayLabel, itemDisabled, closable, onClose);
+      : defaultRenderSelector(valueItem, displayLabel, itemDisabled, closable, onClose);
   }
 
   function renderRest(omittedValues: DisplayValueType[]) {

src/Selector/SingleSelector.tsx

@@ -2,6 +2,7 @@ import * as React from 'react';
 import pickAttrs from 'rc-util/lib/pickAttrs';
 import Input from './Input';
 import type { InnerSelectorProps } from '.';
+import { getTitle } from '../utils/commonUtil';
 
 interface SelectorProps extends InnerSelectorProps {
   inputElement: React.ReactElement;
@@ -57,10 +58,8 @@ const SingleSelector: React.FC<SelectorProps> = (props) => {
   // Not show text when closed expect combobox mode
   const hasTextInput = mode !== 'combobox' && !open && !showSearch ? false : !!inputValue;
 
-  const title =
-    item && (typeof item.label === 'string' || typeof item.label === 'number')
-      ? item.label.toString()
-      : undefined;
+  // Get title
+  const title = getTitle(item);
 
   const renderPlaceholder = () => {
     if (item) {

src/utils/commonUtil.ts

@@ -1,3 +1,5 @@
+import type { DisplayValueType } from '../BaseSelect';
+
 export function toArray<T>(value: T | T[]): T[] {
   if (Array.isArray(value)) {
     return value;
@@ -14,3 +16,20 @@ export const isBrowserClient = process.env.NODE_ENV !== 'test' && isClient;
 export function hasValue(value) {
   return value !== undefined && value !== null;
 }
+
+function isTitleType(title: any) {
+  return ['string', 'number'].includes(typeof title);
+}
+
+export function getTitle(item: DisplayValueType): string {
+  let title: string = undefined;
+  if (item) {
+    if (isTitleType(item.title)) {
+      title = item.title.toString();
+    } else if (isTitleType(item.label)) {
+      title = item.label.toString();
+    }
+  }
+
+  return title;
+}

tests/Select.test.tsx

@@ -1914,4 +1914,33 @@ describe('Select.Basic', () => {
     expect(wrapper.find('div.rc-select-item').prop('data-test')).toEqual('good');
     expect(wrapper.find('div.rc-select-item').prop('aria-label')).toEqual('well');
   });
+
+  // https://github.com/ant-design/ant-design/issues/37591
+  describe('title attr', () => {
+    it('single', () => {
+      const wrapper = mount(
+        <Select value="b" options={[{ label: 'bamboo', title: 'TitleBamboo', value: 'b' }]} />,
+      );
+
+      expect(wrapper.find('.rc-select-selection-item').prop('title')).toEqual('TitleBamboo');
+    });
+
+    it('multiple', () => {
+      const wrapper = mount(
+        <Select
+          mode="multiple"
+          value={['b', 'l']}
+          options={[
+            { label: 'bamboo', title: 'TitleBamboo', value: 'b' },
+            { label: 'little', value: 'l' },
+          ]}
+        />,
+      );
+
+      expect(wrapper.find('.rc-select-selection-item').first().prop('title')).toEqual(
+        'TitleBamboo',
+      );
+      expect(wrapper.find('.rc-select-selection-item').last().prop('title')).toEqual('little');
+    });
+  });
 });