Files F101032467

mergeSlotProps.js
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Created: Wed, Feb 5, 00:25

mergeSlotProps.js
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	import _extends from "@babel/runtime/helpers/esm/extends";
	import clsx from 'clsx';
	import extractEventHandlers from './extractEventHandlers';
	import omitEventHandlers from './omitEventHandlers';
	/**
	* Merges the slot component internal props (usually coming from a hook)
	* with the externally provided ones.
	*
	* The merge order is (the latter overrides the former):
	* 1. The internal props (specified as a getter function to work with get*Props hook result)
	* 2. Additional props (specified internally on an unstyled component)
	* 3. External props specified on the owner component. These should only be used on a root slot.
	* 4. External props specified in the `slotProps.*` prop.
	* 5. The `className` prop - combined from all the above.
	* @param parameters
	* @returns
	*/
	export default function mergeSlotProps(parameters) {
	const {
	getSlotProps,
	additionalProps,
	externalSlotProps,
	externalForwardedProps,
	className
	} = parameters;
	if (!getSlotProps) {
	// The simpler case - getSlotProps is not defined, so no internal event handlers are defined,
	// so we can simply merge all the props without having to worry about extracting event handlers.
	const joinedClasses = clsx(externalForwardedProps?.className, externalSlotProps?.className, className, additionalProps?.className);
	const mergedStyle = _extends({}, additionalProps?.style, externalForwardedProps?.style, externalSlotProps?.style);
	const props = _extends({}, additionalProps, externalForwardedProps, externalSlotProps);
	if (joinedClasses.length > 0) {
	props.className = joinedClasses;
	}
	if (Object.keys(mergedStyle).length > 0) {
	props.style = mergedStyle;
	}
	return {
	props,
	internalRef: undefined
	};
	}

	// In this case, getSlotProps is responsible for calling the external event handlers.
	// We don't need to include them in the merged props because of this.

	const eventHandlers = extractEventHandlers(_extends({}, externalForwardedProps, externalSlotProps));
	const componentsPropsWithoutEventHandlers = omitEventHandlers(externalSlotProps);
	const otherPropsWithoutEventHandlers = omitEventHandlers(externalForwardedProps);
	const internalSlotProps = getSlotProps(eventHandlers);

	// The order of classes is important here.
	// Emotion (that we use in libraries consuming MUI Base) depends on this order
	// to properly override style. It requires the most important classes to be last
	// (see https://github.com/mui/material-ui/pull/33205) for the related discussion.
	const joinedClasses = clsx(internalSlotProps?.className, additionalProps?.className, className, externalForwardedProps?.className, externalSlotProps?.className);
	const mergedStyle = _extends({}, internalSlotProps?.style, additionalProps?.style, externalForwardedProps?.style, externalSlotProps?.style);
	const props = _extends({}, internalSlotProps, additionalProps, otherPropsWithoutEventHandlers, componentsPropsWithoutEventHandlers);
	if (joinedClasses.length > 0) {
	props.className = joinedClasses;
	}
	if (Object.keys(mergedStyle).length > 0) {
	props.style = mergedStyle;
	}
	return {
	props,
	internalRef: internalSlotProps.ref
	};
	}

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