@wordpress/editor/build-module/components/unsaved-changes-warning/index.mjs.map

Enhanced block editor for WordPress posts.

{
  "version": 3,
  "sources": ["../../../src/components/unsaved-changes-warning/index.js"],
  "sourcesContent": ["/**\n * WordPress dependencies\n */\nimport { __ } from '@wordpress/i18n';\nimport { useEffect } from '@wordpress/element';\nimport { useSelect } from '@wordpress/data';\nimport { store as coreStore } from '@wordpress/core-data';\n\n/**\n * Warns the user if there are unsaved changes before leaving the editor.\n * Compatible with Post Editor and Site Editor.\n *\n * @return {React.ReactNode} The component.\n */\nexport default function UnsavedChangesWarning() {\n\tconst { __experimentalGetDirtyEntityRecords } = useSelect( coreStore );\n\n\tuseEffect( () => {\n\t\t/**\n\t\t * Warns the user if there are unsaved changes before leaving the editor.\n\t\t *\n\t\t * @param {Event} event `beforeunload` event.\n\t\t *\n\t\t * @return {string | undefined} Warning prompt message, if unsaved changes exist.\n\t\t */\n\t\tconst warnIfUnsavedChanges = ( event ) => {\n\t\t\t// We need to call the selector directly in the listener to avoid race\n\t\t\t// conditions with `BrowserURL` where `componentDidUpdate` gets the\n\t\t\t// new value of `isEditedPostDirty` before this component does,\n\t\t\t// causing this component to incorrectly think a trashed post is still dirty.\n\t\t\tconst dirtyEntityRecords = __experimentalGetDirtyEntityRecords();\n\t\t\tif ( dirtyEntityRecords.length > 0 ) {\n\t\t\t\tevent.returnValue = __(\n\t\t\t\t\t'You have unsaved changes. If you proceed, they will be lost.'\n\t\t\t\t);\n\t\t\t\treturn event.returnValue;\n\t\t\t}\n\t\t};\n\n\t\twindow.addEventListener( 'beforeunload', warnIfUnsavedChanges );\n\n\t\treturn () => {\n\t\t\twindow.removeEventListener( 'beforeunload', warnIfUnsavedChanges );\n\t\t};\n\t}, [ __experimentalGetDirtyEntityRecords ] );\n\n\treturn null;\n}\n"],
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  "names": []
}