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[Theme] Merge components and slots props #35477

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merged 4 commits into from Dec 20, 2022
Merged

[Theme] Merge components and slots props #35477

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eb79cda
merge props
siriwatknp Dec 14, 2022
bceae37
Merge branch 'master' of https://github.com/mui/material-ui into merg…
siriwatknp Dec 19, 2022
7f90ecf
fix logic to merge slotProps
siriwatknp Dec 19, 2022
5713023
add another tests
siriwatknp Dec 19, 2022
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36 changes: 36 additions & 0 deletions packages/mui-utils/src/resolveProps.test.ts
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Expand Up @@ -44,4 +44,40 @@ describe('resolveProps', () => {
foo: '',
});
});

it('merge components and componentsProps props', () => {
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expect(
resolveProps(
{ components: { Input: 'Input' }, componentsProps: { input: { className: 'input' } } },
{
components: { Root: 'Root' },
componentsProps: { root: { className: 'root' }, input: { style: { color: 'red' } } },
},
),
).to.deep.equal({
components: { Root: 'Root', Input: 'Input' },
componentsProps: {
root: { className: 'root' },
input: { className: 'input', style: { color: 'red' } },
},
});
});

it('merge slots and slotProps props', () => {
expect(
resolveProps(
{ slots: { input: 'input' }, slotProps: { input: { className: 'input' } } },
{
slots: { root: 'root' },
slotProps: { root: { className: 'root' }, input: { style: { color: 'red' } } },
},
),
).to.deep.equal({
slots: { root: 'root', input: 'input' },
slotProps: {
root: { className: 'root' },
input: { className: 'input', style: { color: 'red' } },
},
});
});
});
41 changes: 35 additions & 6 deletions packages/mui-utils/src/resolveProps.ts
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Expand Up @@ -4,14 +4,43 @@
* @param {object} props
* @returns {object} resolved props
*/
export default function resolveProps<T extends { className?: string } & Record<string, unknown>>(
defaultProps: T,
props: T,
) {
export default function resolveProps<
T extends {
components?: Record<string, unknown>;
componentsProps?: Record<string, unknown>;
slots?: Record<string, unknown>;
slotProps?: Record<string, unknown>;
} & Record<string, unknown>,
>(defaultProps: T, props: T) {
const output = { ...props };

Object.keys(defaultProps).forEach((propName: keyof T) => {
if (output[propName] === undefined) {
(Object.keys(defaultProps) as Array<keyof T>).forEach((propName) => {
if (propName.toString().match(/^(components|slots)$/)) {
output[propName] = {
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For the slotProps & componentsProps, should we merge the second level too?

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Yeah, that's better.

...(defaultProps[propName] as any),
...(output[propName] as any),
};
} else if (propName.toString().match(/^(componentsProps|slotProps)$/)) {
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Should we also merge props like TransitionProps (just by one depth lile slots and components ?
To solve #34978

Or should it be a distinct PR ?

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I think it should be a separate PR. I propose to keep it small to fix the main issue first.

const defaultSlotProps = (defaultProps[propName] || {}) as T[keyof T];
const slotProps = props[propName] as {} as T[keyof T];
output[propName] = {} as T[keyof T];
Comment on lines +24 to +26
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TypeScript is hard to get right for logic like this 🥲


if (!slotProps || !Object.keys(slotProps)) {
// Reduce the iteration if the slot props is empty
output[propName] = defaultSlotProps;
} else if (!defaultSlotProps || !Object.keys(defaultSlotProps)) {
// Reduce the iteration if the default slot props is empty
output[propName] = slotProps;
} else {
output[propName] = { ...slotProps };
Object.keys(defaultSlotProps).forEach((slotPropName) => {
(output[propName] as Record<string, unknown>)[slotPropName] = resolveProps(
(defaultSlotProps as Record<string, any>)[slotPropName],
(slotProps as Record<string, any>)[slotPropName],
);
});
}
} else if (output[propName] === undefined) {
output[propName] = defaultProps[propName];
}
});
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