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Original file line number Diff line number Diff line change
@@ -0,0 +1,65 @@
import React from "react";
import { StyleType } from '../../../theme';

export type RenderProp<Props = {}> = (props?: Props) => React.ReactElement;

export type FalsyNodeProps<Props = {}> = Props & {
fallback?: React.ReactElement;
children?: React.ReactElement;
style?: StyleType;
};

/**
* Helper component for optional properties that should render cloned component.
*
* Accepts props of a component that is expected to be rendered,
* and `children` which may be React Element only.
*
* If it is a React Element, will call it with props passed to this component.
*
* @property {RenderProp} children - React jsx component to be rendered.
* @property {React.ReactElement} fallback - Element to render if children is null or undefined.
*
* @example Will render nothing.
* ```
* <FalsyNode />
* ```
*
* @example Will render red title.
* ```
* const Title = () => (
* <FalsyNode
* style={{ color: 'red' }}
* component={props => <Text {...props}>Title</Text>}
* />
* );
* ```
*/

type ChildElement = React.ReactElement;
type ChildrenProp = ChildElement | ChildElement[];

export class FalsyNode<Props = {}> extends React.Component<FalsyNodeProps<Props>> {

private renderChildElement = (source: ChildElement, props: any): ChildElement => {
return React.cloneElement(source, {
...props,
...source.props,
style: [this.props?.style, source.props.style],
});
};

private renderComponentChildren = (source: ChildrenProp, props: any): ChildElement[] => {
return React.Children.map(source, child => this.renderChildElement(child, props));
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I don't think we have to apply props to each child.

};

public render(): React.ReactElement {
const { children, fallback, ...props } = this.props;

if (!children) {
return fallback || null;
}

return <>{this.renderComponentChildren(children, props)}</>;
}
}
1 change: 1 addition & 0 deletions src/components/devsupport/index.ts
Original file line number Diff line number Diff line change
Expand Up @@ -3,6 +3,7 @@ export {
RenderProp,
} from './components/falsyFC/falsyFC.component';
export { FalsyText } from './components/falsyText/falsyText.component';
export { FalsyNode } from './components/falsyNode/falsyNode.component';
export {
TouchableWithoutFeedback,
TouchableWithoutFeedbackProps,
Expand Down
7 changes: 4 additions & 3 deletions src/components/ui/card/card.component.tsx
Original file line number Diff line number Diff line change
Expand Up @@ -14,6 +14,7 @@ import {
import {
EvaStatus,
FalsyFC,
FalsyNode,
RenderProp,
TouchableWeb,
TouchableWebElement,
Expand All @@ -33,7 +34,7 @@ type CardStyledProps = Overwrite<StyledComponentProps, {
}>;

export interface CardProps extends TouchableWebProps, CardStyledProps {
children?: React.ReactNode;
children?: React.ReactElement;
header?: RenderProp<ViewProps>;
footer?: RenderProp<ViewProps>;
accent?: RenderProp<ViewProps>;
Expand Down Expand Up @@ -150,9 +151,9 @@ export class Card extends React.Component<CardProps> {
component={header}
/>
{header && <Divider/>}
<View style={evaStyle.body}>
<FalsyNode style={evaStyle.body}>
{children}
</View>
</FalsyNode>
{footer && <Divider/>}
<FalsyFC
style={[styles.transparent, evaStyle.footer]}
Expand Down