[data grid] Undefined ownerState when customizing theme.

[joserodolfofreitas]

Duplicates

• I have searched the existing issues

Latest version

• I have tested the latest version

Current behavior 😯

When trying to customize themes using overrides based props, the ownerState passed as parameter is undefined.

Expected behavior 🤔

ownerState to contain props.

Steps to reproduce 🕹

Steps:

1. Open https://codesandbox.io/s/datagriddemo-theme-override-hwj2y8?file=/demo.js
2. Debug message is displayed on the console.

Context 🔦

No response

Your environment 🌎

`npx @mui/envinfo`

  Don't forget to mention which browser you used.
  Output from `npx @mui/envinfo` goes here.

Order ID 💳 (optional)

32000

[oliviertassinari]

Should we do

diff --git a/packages/grid/x-data-grid/src/components/containers/GridRoot.tsx b/packages/grid/x-data-grid/src/components/containers/GridRoot.tsx
index 7568526d..77c79769 100644
--- a/packages/grid/x-data-grid/src/components/containers/GridRoot.tsx
+++ b/packages/grid/x-data-grid/src/components/containers/GridRoot.tsx
@@ -28,6 +28,7 @@ const GridRoot = React.forwardRef<HTMLDivElement, GridRootProps>(function GridRo
   const totalRowCount = useGridSelector(apiRef, gridRowCountSelector);
   const rootContainerRef: GridRootContainerRef = React.useRef<HTMLDivElement>(null);
   const handleRef = useForkRef(rootContainerRef, ref);
+  const ownerState = rootProps;

   apiRef.current.rootElementRef = rootContainerRef;

@@ -59,6 +60,7 @@ const GridRoot = React.forwardRef<HTMLDivElement, GridRootProps>(function GridRo
       aria-multiselectable={!rootProps.disableMultipleSelection}
       aria-label={rootProps['aria-label']}
       aria-labelledby={rootProps['aria-labelledby']}
+      ownerState={ownerState}
       {...other}
     >
       {children}

and call it a day? Then, it's about fixing mui/material-ui#31982.

[m4theushw]

I still think that for https://mui.zendesk.com/agent/tickets/2922 global classes for density would be more useful. Maybe we re-open #4225

[lucasveigaf]

Any news on this? mui/material-ui#31982 is closed already

[iigrik]

@lucasveigaf I've started working on it.

[lolaignatova]

Hello oliviertassinari. Can you or somebody please help me with this MR?
I left a comment there to clarify two questions.

Thanks in advance

[m4theushw]

Fixed by #7757