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| import React, { Fragment, Component } from 'react';
import PropTypes from 'prop-types';
import cartesian from 'cartesian';
import { normalizeClean, getPermutations } from './helpers';
import { Context } from './Provider';
function recursiveContextGenerator(
ctxList,
getContext,
children,
tao,
data,
ctxIdx = 0,
ctxDataArgs = []
) {
const ctxName = ctxList[ctxIdx];
const context = getContext(ctxName);
if (ctxList.length > ctxIdx + 1) {
return (
<context.Consumer name={`${ctxName}.Consumer`}>
{ctxData => {
ctxDataArgs.push(ctxData);
return recursiveContextGenerator(
ctxList,
getContext,
children,
tao,
data,
ctxIdx + 1,
ctxDataArgs
);
}}
</context.Consumer>
);
}
return (
<context.Consumer name={`${ctxName}.Consumer`}>
{ctxData => {
ctxDataArgs.push(ctxData);
return children(tao, data, ...ctxDataArgs);
}}
</context.Consumer>
);
}
export default class RenderHandler extends Component {
static contextType = Context;
static propTypes = {
term: PropTypes.any,
action: PropTypes.any,
orient: PropTypes.any,
context: PropTypes.oneOfType([
PropTypes.string,
PropTypes.arrayOf(PropTypes.string)
]),
debug: PropTypes.bool,
children: PropTypes.func.isRequired
};
constructor(props) {
super(props);
let { shouldRender } = props;
shouldRender = typeof shouldRender === 'undefined' ? false : shouldRender;
this.state = { shouldRender };
this._refreshOn = null;
}
componentDidMount() {
const { debug = false } = this.props;
debug && console.log('RenderHandler::props:', this.props);
debug && console.log('RenderHandler::context:', this.context);
const { TAO } = this.context;
const permutations = getPermutations(this.props);
if (permutations.length) {
permutations.forEach(({ term, action, orient }) =>
TAO.addInlineHandler({ term, action, orient }, this.handleRender)
);
}
const { refreshOn } = this.props;
if (refreshOn) {
const trigram = normalizeClean(this.props);
const refresh = normalizeClean(refreshOn);
if (!Object.keys(refresh).length) {
return;
}
this._refreshOn = cartesian({ ...trigram, ...refresh });
this._refreshOn.forEach(({ term, action, orient }) =>
TAO.addInlineHandler({ term, action, orient }, this.handleRender)
);
}
}
componentWillUnmount() {
const { TAO } = this.context;
const permutations = getPermutations(this.props);
if (permutations.length) {
permutations.forEach(({ term, action, orient }) =>
TAO.removeInlineHandler({ term, action, orient }, this.handleRender)
);
}
if (this._refreshOn && this._refreshOn.length) {
this._refreshOn.forEach(({ term, action, orient }) =>
TAO.removeInlineHandler({ term, action, orient }, this.handleRender)
);
}
}
handleRender = (tao, data) => {
// TODO: allow shouldRender prop be a function called
this.setState({ tao, data, shouldRender: true });
};
render() {
const { context, children } = this.props;
const { shouldRender, tao, data } = this.state;
const { getDataContext } = this.context;
if (!shouldRender) {
return null;
}
if (!context) {
return <Fragment>{children(tao, data)}</Fragment>;
}
const ctxList = Array.isArray(context) ? context : [context];
return recursiveContextGenerator(
ctxList,
getDataContext,
children,
tao,
data
);
}
}
|