55 lines
1.7 KiB
JavaScript
55 lines
1.7 KiB
JavaScript
/**
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* @generated SignedSource<<2a163cdb088fb963f941e627fd89ce11>>
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*
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* !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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* !! This file is a check-in of a static_upstream project! !!
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* !! !!
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* !! You should not modify this file directly. Instead: !!
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* !! 1) Use `fjs use-upstream` to temporarily replace this with !!
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* !! the latest version from upstream. !!
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* !! 2) Make your changes, test them, etc. !!
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* !! 3) Use `fjs push-upstream` to copy your changes back to !!
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* !! static_upstream. !!
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* !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
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*
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* Copyright 2004-present Facebook. All Rights Reserved.
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*
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* @providesModule StaticContainer.react
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* @typechecks
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* @flow
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*/
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var React = require('React');
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var onlyChild = require('onlyChild');
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/**
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* Renders static content efficiently by allowing React to short-circuit the
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* reconciliation process. This component should be used when you know that a
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* subtree of components will never need to be updated.
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*
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* var someValue = ...; // We know for certain this value will never change.
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* return (
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* <StaticContainer>
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* <MyComponent value={someValue} />
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* </StaticContainer>
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* );
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*
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* Typically, you will not need to use this component and should opt for normal
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* React reconciliation.
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*/
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class StaticContainer extends React.Component {
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shouldComponentUpdate(nextProps: Object): boolean {
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return !!nextProps.shouldUpdate;
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}
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render() {
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var child = this.props.children;
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return (child === null || child === false) ? null : onlyChild(child);
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}
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}
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module.exports = StaticContainer;
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