[docs] Explain the usage of Select's onOpen/onClose in the uncontrolled mode

docs/translations/api-docs/select/select.json

@@ -16,9 +16,9 @@
     "MenuProps": "Props applied to the <a href=\"/material-ui/api/menu/\"><code>Menu</code></a> element.",
     "multiple": "If <code>true</code>, <code>value</code> must be an array and the menu will support multiple selections.",
     "native": "If <code>true</code>, the component uses a native <code>select</code> element.",
-    "onChange": "Callback fired when a menu item is selected.<br><br><strong>Signature:</strong><br><code>function(event: SelectChangeEvent&lt;T&gt;, child?: object) =&gt; void</code><br><em>event:</em> The event source of the callback. You can pull out the new value by accessing <code>event.target.value</code> (any). <strong>Warning</strong>: This is a generic event not a change event unless the change event is caused by browser autofill.<br><em>child:</em> The react element that was selected when <code>native</code> is <code>false</code> (default).",
-    "onClose": "Callback fired when the component requests to be closed. Use in controlled mode (see open).<br><br><strong>Signature:</strong><br><code>function(event: object) =&gt; void</code><br><em>event:</em> The event source of the callback.",
-    "onOpen": "Callback fired when the component requests to be opened. Use in controlled mode (see open).<br><br><strong>Signature:</strong><br><code>function(event: object) =&gt; void</code><br><em>event:</em> The event source of the callback.",
+    "onChange": "Callback fired when a menu item is selected.<br><br><strong>Signature:</strong><br><code>function(event: SelectChangeEvent&lt;T&gt;, child?: object) =&gt; void</code><br><em>event:</em> The event source of the callback. You can pull out the new value by accessing <code>event.target.value</code> (any). <strong>Warning</strong>: This is a generic event, not a change event, unless the change event is caused by browser autofill.<br><em>child:</em> The react element that was selected when <code>native</code> is <code>false</code> (default).",
+    "onClose": "Callback fired when the component requests to be closed. Use it in either controlled (see the <code>open</code> prop), or uncontrolled mode (to detect when the Select collapes).<br><br><strong>Signature:</strong><br><code>function(event: object) =&gt; void</code><br><em>event:</em> The event source of the callback.",
+    "onOpen": "Callback fired when the component requests to be opened. Use it in either controlled (see the <code>open</code> prop), or uncontrolled mode (to detect when the Select expands).<br><br><strong>Signature:</strong><br><code>function(event: object) =&gt; void</code><br><em>event:</em> The event source of the callback.",
     "open": "If <code>true</code>, the component is shown. You can only use it when the <code>native</code> prop is <code>false</code> (default).",
     "renderValue": "Render the selected value. You can only use it when the <code>native</code> prop is <code>false</code> (default).<br><br><strong>Signature:</strong><br><code>function(value: any) =&gt; ReactNode</code><br><em>value:</em> The <code>value</code> provided to the component.",
     "SelectDisplayProps": "Props applied to the clickable div element.",

packages/mui-material/src/Select/Select.d.ts

@@ -98,20 +98,20 @@ export interface SelectProps<T = unknown>
    *
    * @param {SelectChangeEvent<T>} event The event source of the callback.
    * You can pull out the new value by accessing `event.target.value` (any).
-   * **Warning**: This is a generic event not a change event unless the change event is caused by browser autofill.
+   * **Warning**: This is a generic event, not a change event, unless the change event is caused by browser autofill.
    * @param {object} [child] The react element that was selected when `native` is `false` (default).
    */
   onChange?: SelectInputProps<T>['onChange'];
   /**
    * Callback fired when the component requests to be closed.
-   * Use in controlled mode (see open).
+   * Use it in either controlled (see the `open` prop), or uncontrolled mode (to detect when the Select collapes).
    *
    * @param {object} event The event source of the callback.
    */
   onClose?: (event: React.SyntheticEvent) => void;
   /**
    * Callback fired when the component requests to be opened.
-   * Use in controlled mode (see open).
+   * Use it in either controlled (see the `open` prop), or uncontrolled mode (to detect when the Select expands).
    *
    * @param {object} event The event source of the callback.
    */

packages/mui-material/src/Select/Select.js

@@ -218,20 +218,20 @@ Select.propTypes /* remove-proptypes */ = {
    *
    * @param {SelectChangeEvent<T>} event The event source of the callback.
    * You can pull out the new value by accessing `event.target.value` (any).
-   * **Warning**: This is a generic event not a change event unless the change event is caused by browser autofill.
+   * **Warning**: This is a generic event, not a change event, unless the change event is caused by browser autofill.
    * @param {object} [child] The react element that was selected when `native` is `false` (default).
    */
   onChange: PropTypes.func,
   /**
    * Callback fired when the component requests to be closed.
-   * Use in controlled mode (see open).
+   * Use it in either controlled (see the `open` prop), or uncontrolled mode (to detect when the Select collapes).
    *
    * @param {object} event The event source of the callback.
    */
   onClose: PropTypes.func,
   /**
    * Callback fired when the component requests to be opened.
-   * Use in controlled mode (see open).
+   * Use it in either controlled (see the `open` prop), or uncontrolled mode (to detect when the Select expands).
    *
    * @param {object} event The event source of the callback.
    */