@deck.gl/react/dist/utils/evaluate-children.js

React Components for deck.gl

// deck.gl
// SPDX-License-Identifier: MIT
// Copyright (c) vis.gl contributors
import { cloneElement } from 'react';
const MAP_STYLE = { position: 'absolute', zIndex: -1 };
export default function evaluateChildren(children, childProps) {
    if (typeof children === 'function') {
        return children(childProps);
    }
    if (Array.isArray(children)) {
        return children.map(child => evaluateChildren(child, childProps));
    }
    if (isComponent(children)) {
        // Special treatment for react-map-gl's Map component
        // to support shorthand use case <DeckGL><StaticMap /></DeckGL>
        if (isReactMap(children)) {
            // Place map under the canvas
            childProps.style = MAP_STYLE;
            return cloneElement(children, childProps);
        }
        if (needsDeckGLViewProps(children)) {
            return cloneElement(children, childProps);
        }
    }
    return children;
}
export function isComponent(child) {
    return (child && typeof child === 'object' && 'type' in child) || false;
}
function isReactMap(child) {
    return child.props?.mapStyle;
}
function needsDeckGLViewProps(child) {
    const componentClass = child.type;
    // @ts-expect-error deckGLViewProps is a custom hack defined on the constructor (nebula.gl)
    return componentClass && componentClass.deckGLViewProps;
}
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