@wordpress/editor/build-module/components/post-revisions-preview/revisions-code-diff.mjs.map

Enhanced block editor for WordPress posts.

{
  "version": 3,
  "sources": ["../../../src/components/post-revisions-preview/revisions-code-diff.js"],
  "sourcesContent": ["import { diffLines } from 'diff';\nimport { Spinner } from '@wordpress/components';\nimport { store as coreStore } from '@wordpress/core-data';\nimport { useSelect } from '@wordpress/data';\nimport { useMemo } from '@wordpress/element';\nimport { __, _x } from '@wordpress/i18n';\nimport { VisuallyHidden } from '@wordpress/ui';\nimport { store as editorStore } from '../../store';\nimport { buildRevisionsPageQuery } from '../../store/private-selectors';\nimport { unlock } from '../../lock-unlock';\n\nconst MAX_DIFF_EDIT_LENGTH = 1000;\nconst DIFF_TIMEOUT = 100;\n\n/**\n * Diff parts often end in a newline. Remove the trailing empty item so it is\n * not rendered as another source line.\n *\n * @param {string} value Diff part value.\n * @return {string[]} Lines in the diff part.\n */\nfunction splitLines( value ) {\n\tconst lines = value.split( '\\n' );\n\tif ( lines[ lines.length - 1 ] === '' ) {\n\t\tlines.pop();\n\t}\n\treturn lines;\n}\n\n/**\n * Creates the rows shown in the code diff and adds line numbers for both\n * revisions.\n *\n * @param {string}  previousContent Previous revision content.\n * @param {string}  currentContent  Selected revision content.\n * @param {boolean} showDiff        Whether changes should be highlighted.\n * @return {Array<Object>} Code-diff rows.\n */\nexport function getCodeDiffRows( previousContent, currentContent, showDiff ) {\n\tlet parts = [ { value: currentContent } ];\n\tif ( showDiff ) {\n\t\tparts = diffLines( previousContent, currentContent, {\n\t\t\tmaxEditLength: MAX_DIFF_EDIT_LENGTH,\n\t\t\ttimeout: DIFF_TIMEOUT,\n\t\t} );\n\n\t\t// Line diffing can be quadratic for unrelated revisions. If it exceeds\n\t\t// either limit, mark every old and new line instead.\n\t\tif ( ! parts ) {\n\t\t\tparts = [\n\t\t\t\t{ value: previousContent, removed: true },\n\t\t\t\t{ value: currentContent, added: true },\n\t\t\t];\n\t\t}\n\t}\n\tlet previousLineNumber = 1;\n\tlet currentLineNumber = 1;\n\n\treturn parts.flatMap( ( part ) => {\n\t\tlet status = 'unchanged';\n\t\tif ( part.added ) {\n\t\t\tstatus = 'added';\n\t\t} else if ( part.removed ) {\n\t\t\tstatus = 'removed';\n\t\t}\n\n\t\treturn splitLines( part.value ).map( ( value ) => {\n\t\t\tconst row = {\n\t\t\t\tvalue,\n\t\t\t\tstatus,\n\t\t\t\tpreviousLineNumber: null,\n\t\t\t\tcurrentLineNumber: null,\n\t\t\t};\n\n\t\t\tif ( status !== 'added' && showDiff ) {\n\t\t\t\trow.previousLineNumber = previousLineNumber++;\n\t\t\t}\n\t\t\tif ( status !== 'removed' ) {\n\t\t\t\trow.currentLineNumber = currentLineNumber++;\n\t\t\t}\n\n\t\t\treturn row;\n\t\t} );\n\t} );\n}\n\n/**\n * Determines whether the code diff should wait for an older revision or fall\n * back to showing the selected revision without a diff.\n *\n * @param {Object}      options                             Display options.\n * @param {Object|null} options.previousRevision            Previous revision.\n * @param {boolean}     options.showDiff                    Whether changes should be highlighted.\n * @param {boolean}     options.hasOlderRevisionPage        Whether another revisions page exists.\n * @param {boolean}     options.hasFinishedPreviousRevision Whether the previous revision request finished.\n * @return {Object} Code-diff display state.\n */\nexport function getCodeDiffDisplayState( {\n\tpreviousRevision,\n\tshowDiff,\n\thasOlderRevisionPage,\n\thasFinishedPreviousRevision,\n} ) {\n\tconst needsPreviousRevision =\n\t\tshowDiff && previousRevision === null && hasOlderRevisionPage;\n\n\treturn {\n\t\tshowDiff:\n\t\t\tshowDiff &&\n\t\t\t! ( needsPreviousRevision && hasFinishedPreviousRevision ),\n\t\tisPreviousRevisionLoading:\n\t\t\tneedsPreviousRevision && ! hasFinishedPreviousRevision,\n\t};\n}\n\nexport default function ConnectedRevisionsCodeDiff() {\n\tconst revisionDiff = useSelect( ( select ) => {\n\t\tconst editorSelectors = select( editorStore );\n\t\tconst coreSelectors = select( coreStore );\n\t\tconst {\n\t\t\tgetCurrentRevision,\n\t\t\tgetPreviousRevision,\n\t\t\tgetRevisionPage,\n\t\t\tgetRevisionsPerPage,\n\t\t\tisShowingRevisionDiff,\n\t\t} = unlock( editorSelectors );\n\t\tconst _previousRevision = getPreviousRevision();\n\t\tconst _showDiff = isShowingRevisionDiff();\n\t\tconst revisionPage = getRevisionPage();\n\t\tconst totalPages =\n\t\t\tMath.ceil(\n\t\t\t\teditorSelectors.getCurrentPostRevisionsCount() /\n\t\t\t\t\tgetRevisionsPerPage()\n\t\t\t) || 1;\n\t\tconst hasOlderRevisionPage = revisionPage < totalPages;\n\t\tlet hasFinishedPreviousRevision = true;\n\n\t\tif ( _showDiff && _previousRevision === null && hasOlderRevisionPage ) {\n\t\t\tconst postType = editorSelectors.getCurrentPostType();\n\t\t\tconst postId = editorSelectors.getCurrentPostId();\n\t\t\tconst entityConfig = coreSelectors.getEntityConfig(\n\t\t\t\t'postType',\n\t\t\t\tpostType\n\t\t\t);\n\t\t\tconst revisionKey = entityConfig?.revisionKey || 'id';\n\n\t\t\thasFinishedPreviousRevision = coreSelectors.hasFinishedResolution(\n\t\t\t\t'getRevisions',\n\t\t\t\t[\n\t\t\t\t\t'postType',\n\t\t\t\t\tpostType,\n\t\t\t\t\tpostId,\n\t\t\t\t\tbuildRevisionsPageQuery( revisionKey, revisionPage + 1 ),\n\t\t\t\t]\n\t\t\t);\n\t\t}\n\n\t\treturn {\n\t\t\trevision: getCurrentRevision(),\n\t\t\tpreviousRevision: _previousRevision,\n\t\t\t...getCodeDiffDisplayState( {\n\t\t\t\tpreviousRevision: _previousRevision,\n\t\t\t\tshowDiff: _showDiff,\n\t\t\t\thasOlderRevisionPage,\n\t\t\t\thasFinishedPreviousRevision,\n\t\t\t} ),\n\t\t};\n\t}, [] );\n\n\treturn <RevisionsCodeDiff { ...revisionDiff } />;\n}\n\n/**\n * Shows the selected revision's raw block markup as a read-only diff.\n *\n * @param {Object}      props                           Component props.\n * @param {Object}      props.revision                  Selected revision.\n * @param {Object|null} props.previousRevision          Previous revision.\n * @param {boolean}     props.showDiff                  Whether to show changes.\n * @param {boolean}     props.isPreviousRevisionLoading Whether the previous revision is loading.\n * @return {React.JSX.Element} The revision code diff.\n */\nexport function RevisionsCodeDiff( {\n\trevision,\n\tpreviousRevision,\n\tshowDiff,\n\tisPreviousRevisionLoading,\n} ) {\n\tconst rows = useMemo( () => {\n\t\tif ( ! revision || isPreviousRevisionLoading ) {\n\t\t\treturn [];\n\t\t}\n\n\t\treturn getCodeDiffRows(\n\t\t\tpreviousRevision?.content?.raw ?? '',\n\t\t\trevision.content?.raw ?? '',\n\t\t\tshowDiff\n\t\t);\n\t}, [ revision, previousRevision, showDiff, isPreviousRevisionLoading ] );\n\n\tif ( ! revision || isPreviousRevisionLoading ) {\n\t\treturn (\n\t\t\t<div className=\"editor-revisions-canvas__loading\">\n\t\t\t\t<Spinner />\n\t\t\t</div>\n\t\t);\n\t}\n\n\tconst label = showDiff ? __( 'Code changes' ) : __( 'Revision code' );\n\n\treturn (\n\t\t<div\n\t\t\tclassName=\"editor-revisions-code-diff\"\n\t\t\trole=\"region\"\n\t\t\taria-label={ label }\n\t\t\ttabIndex={ 0 }\n\t\t>\n\t\t\t{ rows.length ? 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}