Created
October 27, 2017 19:38
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React Iframe for Writing to contentDocument
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| /** | |
| * This has a specific use case for writing to the contentDocument allowing for a separated scope | |
| * | |
| * There are probably other ways to do this with ShadowDom but this works well for my purposes | |
| * | |
| * USAGE: | |
| * | |
| * <CustomIframe html={<head><title>Doc Title</title></head><body>Hello React User</body>} /> | |
| * | |
| */ | |
| import React, { Component } from 'react' | |
| export default class CustomIframe extends Component { | |
| constructor() { | |
| super() | |
| this.iframe_ref = null | |
| this.writeHTML = this.writeHTML.bind(this) | |
| } | |
| writeHTML(frame){ | |
| if(!frame) { | |
| return | |
| } | |
| this.iframe_ref = frame | |
| let doc = frame.contentDocument | |
| doc.open() | |
| doc.write(this.props.html) | |
| doc.close() | |
| frame.style.width = '100%' | |
| frame.style.height = `${frame.contentWindow.document.body.scrollHeight}px` | |
| } | |
| render(){ | |
| return ( | |
| <iframe src='about:blank' scrolling='no' frameBorder='0' ref={this.writeHTML}></iframe> | |
| ) | |
| } | |
| } |
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