@wordpress/components/build/sandbox/index.cjs.map

UI components for WordPress.

{
  "version": 3,
  "sources": ["../../src/sandbox/index.tsx"],
  "sourcesContent": ["/**\n * WordPress dependencies\n */\nimport { renderToString, useRef, useState, useEffect } from '@wordpress/element';\nimport { useFocusableIframe, useMergeRefs } from '@wordpress/compose';\n\n/**\n * Internal dependencies\n */\nimport { jsx as _jsx, jsxs as _jsxs } from \"react/jsx-runtime\";\nconst observeAndResizeJS = function () {\n  const {\n    MutationObserver\n  } = window;\n  if (!MutationObserver || !document.body || !window.parent) {\n    return;\n  }\n  function sendResize() {\n    const clientBoundingRect = document.body.getBoundingClientRect();\n    window.parent.postMessage({\n      action: 'resize',\n      width: clientBoundingRect.width,\n      height: clientBoundingRect.height\n    }, '*');\n  }\n  const observer = new MutationObserver(sendResize);\n  observer.observe(document.body, {\n    attributes: true,\n    attributeOldValue: false,\n    characterData: true,\n    characterDataOldValue: false,\n    childList: true,\n    subtree: true\n  });\n  window.addEventListener('load', sendResize, true);\n\n  // Hack: Remove viewport unit styles, as these are relative\n  // the iframe root and interfere with our mechanism for\n  // determining the unconstrained page bounds.\n  function removeViewportStyles(ruleOrNode) {\n    if (ruleOrNode.style) {\n      ['width', 'height', 'minHeight', 'maxHeight'].forEach(function (style) {\n        if (/^\\\\d+(vw|vh|svw|lvw|dvw|svh|lvh|dvh|vi|svi|lvi|dvi|vb|svb|lvb|dvb|vmin|svmin|lvmin|dvmin|vmax|svmax|lvmax|dvmax)$/.test(ruleOrNode.style[style])) {\n          ruleOrNode.style[style] = '';\n        }\n      });\n    }\n  }\n  Array.prototype.forEach.call(document.querySelectorAll('[style]'), removeViewportStyles);\n  Array.prototype.forEach.call(document.styleSheets, function (stylesheet) {\n    Array.prototype.forEach.call(stylesheet.cssRules || stylesheet.rules, removeViewportStyles);\n  });\n  document.body.style.position = 'absolute';\n  document.body.style.width = '100%';\n  document.body.setAttribute('data-resizable-iframe-connected', '');\n  sendResize();\n\n  // Resize events can change the width of elements with 100% width, but we don't\n  // get an DOM mutations for that, so do the resize when the window is resized, too.\n  window.addEventListener('resize', sendResize, true);\n};\n\n// TODO: These styles shouldn't be coupled with WordPress.\nconst style = `\n\tbody {\n\t\tmargin: 0;\n\t}\n\thtml,\n\tbody,\n\tbody > div {\n\t\twidth: 100%;\n\t}\n\thtml.wp-has-aspect-ratio,\n\tbody.wp-has-aspect-ratio,\n\tbody.wp-has-aspect-ratio > div,\n\tbody.wp-has-aspect-ratio > div iframe {\n\t\twidth: 100%;\n\t\theight: 100%;\n\t\toverflow: hidden; /* If it has an aspect ratio, it shouldn't scroll. */\n\t}\n\tbody > div > * {\n\t\tmargin-top: 0 !important; /* Has to have !important to override inline styles. */\n\t\tmargin-bottom: 0 !important;\n\t}\n`;\n\n/**\n * This component provides an isolated environment for arbitrary HTML via iframes.\n *\n * ```jsx\n * import { SandBox } from '@wordpress/components';\n *\n * const MySandBox = () => (\n * \t<SandBox html=\"<p>Content</p>\" title=\"SandBox\" type=\"embed\" />\n * );\n * ```\n */\nfunction SandBox({\n  html = '',\n  title = '',\n  type,\n  styles = [],\n  scripts = [],\n  onFocus,\n  tabIndex\n}) {\n  const ref = useRef(null);\n  const [width, setWidth] = useState(0);\n  const [height, setHeight] = useState(0);\n  function isFrameAccessible() {\n    try {\n      return !!ref.current?.contentDocument?.body;\n    } catch (e) {\n      return false;\n    }\n  }\n  function trySandBox(forceRerender = false) {\n    if (!isFrameAccessible()) {\n      return;\n    }\n    const {\n      contentDocument,\n      ownerDocument\n    } = ref.current;\n    if (!forceRerender && null !== contentDocument?.body.getAttribute('data-resizable-iframe-connected')) {\n      return;\n    }\n\n    // Put the html snippet into a html document, and then write it to the iframe's document\n    // we can use this in the future to inject custom styles or scripts.\n    // Scripts go into the body rather than the head, to support embedded content such as Instagram\n    // that expect the scripts to be part of the body.\n    const htmlDoc = /*#__PURE__*/_jsxs(\"html\", {\n      lang: ownerDocument.documentElement.lang,\n      className: type,\n      children: [/*#__PURE__*/_jsxs(\"head\", {\n        children: [/*#__PURE__*/_jsx(\"title\", {\n          children: title\n        }), /*#__PURE__*/_jsx(\"style\", {\n          dangerouslySetInnerHTML: {\n            __html: style\n          }\n        }), styles.map((rules, i) => /*#__PURE__*/_jsx(\"style\", {\n          dangerouslySetInnerHTML: {\n            __html: rules\n          }\n        }, i))]\n      }), /*#__PURE__*/_jsxs(\"body\", {\n        \"data-resizable-iframe-connected\": \"data-resizable-iframe-connected\",\n        className: type,\n        children: [/*#__PURE__*/_jsx(\"div\", {\n          dangerouslySetInnerHTML: {\n            __html: html\n          }\n        }), /*#__PURE__*/_jsx(\"script\", {\n          type: \"text/javascript\",\n          dangerouslySetInnerHTML: {\n            __html: `(${observeAndResizeJS.toString()})();`\n          }\n        }), scripts.map(src => /*#__PURE__*/_jsx(\"script\", {\n          src: src\n        }, src))]\n      })]\n    });\n\n    // Writing the document like this makes it act in the same way as if it was\n    // loaded over the network, so DOM creation and mutation, script execution, etc.\n    // all work as expected.\n    contentDocument.open();\n    contentDocument.write('<!DOCTYPE html>' + renderToString(htmlDoc));\n    contentDocument.close();\n  }\n  useEffect(() => {\n    trySandBox();\n    function tryNoForceSandBox() {\n      trySandBox(false);\n    }\n    function checkMessageForResize(event) {\n      const iframe = ref.current;\n\n      // Verify that the mounted element is the source of the message.\n      if (!iframe || iframe.contentWindow !== event.source) {\n        return;\n      }\n\n      // Attempt to parse the message data as JSON if passed as string.\n      let data = event.data || {};\n      if ('string' === typeof data) {\n        try {\n          data = JSON.parse(data);\n        } catch (e) {}\n      }\n\n      // Update the state only if the message is formatted as we expect,\n      // i.e. as an object with a 'resize' action.\n      if ('resize' !== data.action) {\n        return;\n      }\n      setWidth(data.width);\n      setHeight(data.height);\n    }\n    const iframe = ref.current;\n    const defaultView = iframe?.ownerDocument?.defaultView;\n\n    // This used to be registered using <iframe onLoad={} />, but it made the iframe blank\n    // after reordering the containing block. See these two issues for more details:\n    // https://github.com/WordPress/gutenberg/issues/6146\n    // https://github.com/facebook/react/issues/18752\n    iframe?.addEventListener('load', tryNoForceSandBox, false);\n    defaultView?.addEventListener('message', checkMessageForResize);\n    return () => {\n      iframe?.removeEventListener('load', tryNoForceSandBox, false);\n      defaultView?.removeEventListener('message', checkMessageForResize);\n    };\n    // Passing `exhaustive-deps` will likely involve a more detailed refactor.\n    // See https://github.com/WordPress/gutenberg/pull/44378\n  }, []);\n  useEffect(() => {\n    trySandBox();\n    // Passing `exhaustive-deps` will likely involve a more detailed refactor.\n    // See https://github.com/WordPress/gutenberg/pull/44378\n  }, [title, styles, scripts]);\n  useEffect(() => {\n    trySandBox(true);\n    // Passing `exhaustive-deps` will likely involve a more detailed refactor.\n    // See https://github.com/WordPress/gutenberg/pull/44378\n  }, [html, type]);\n  return /*#__PURE__*/_jsx(\"iframe\", {\n    ref: useMergeRefs([ref, useFocusableIframe()]),\n    title: title,\n    tabIndex: tabIndex,\n    className: \"components-sandbox\",\n    sandbox: \"allow-scripts allow-same-origin allow-presentation\",\n    onFocus: onFocus,\n    width: Math.ceil(width),\n    height: Math.ceil(height)\n  });\n}\nexport default SandBox;"],
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