Add title for selected content

close ant-design/ant-design#25464

Author: afc163

src/Selector/SingleSelector.tsx

@@ -57,9 +57,14 @@ const SingleSelector: React.FC<SelectorProps> = props => {
   // Not show text when closed expect combobox mode
   const hasTextInput = mode !== 'combobox' && !open ? false : !!inputValue;
 
+  const title =
+    item && (typeof item.label === 'string' || typeof item.label === 'number')
+      ? item.label.toString()
+      : undefined;
+
   return (
     <>
-      <span className={`${prefixCls}-selection-search`}>
+      <span className={`${prefixCls}-selection-search`} title={title}>
         <Input
           ref={inputRef}
           prefixCls={prefixCls}

tests/__snapshots__/Select.test.tsx.snap

@@ -186,6 +186,7 @@ exports[`Select.Basic no search 1`] = `
   >
     <span
       class="rc-select-selection-search"
+      title="1"
     >
       <input
         aria-activedescendant="undefined_list_0"
@@ -232,6 +233,7 @@ exports[`Select.Basic render renders aria-attributes correctly 1`] = `
   >
     <span
       class="antd-selection-search"
+      title="2"
     >
       <input
         aria-activedescendant="undefined_list_0"
@@ -290,6 +292,7 @@ exports[`Select.Basic render renders correctly 1`] = `
   >
     <span
       class="antd-selection-search"
+      title="2"
     >
       <input
         aria-activedescendant="undefined_list_0"
@@ -348,6 +351,7 @@ exports[`Select.Basic render renders data-attributes correctly 1`] = `
   >
     <span
       class="antd-selection-search"
+      title="2"
     >
       <input
         aria-activedescendant="undefined_list_0"
@@ -404,6 +408,7 @@ exports[`Select.Basic render renders disabled select correctly 1`] = `
   >
     <span
       class="antd-selection-search"
+      title="2"
     >
       <input
         aria-activedescendant="undefined_list_0"
@@ -450,6 +455,7 @@ exports[`Select.Basic render renders dropdown correctly 1`] = `
   >
     <span
       class="antd-selection-search"
+      title="2"
     >
       <input
         aria-activedescendant="undefined_list_0"
@@ -626,6 +632,7 @@ exports[`Select.Basic render renders role prop correctly 1`] = `
   >
     <span
       class="antd-selection-search"
+      title="2"
     >
       <input
         aria-activedescendant="undefined_list_0"
@@ -682,6 +689,7 @@ exports[`Select.Basic should contain falsy children 1`] = `
   >
     <span
       class="rc-select-selection-search"
+      title="1"
     >
       <input
         aria-activedescendant="undefined_list_0"