) } const placeholder = 'Start typing...' export function Plugins() { const [floatingAnchorElem, setFloatingAnchorElem] = useState(null) const onRef = (_floatingAnchorElem: HTMLDivElement) => { if (_floatingAnchorElem !== null) { setFloatingAnchorElem(_floatingAnchorElem) } } return (

{/* toolbar plugins */} {({ blockType }) => (

)}

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from "@lexical/react/LexicalRichTextPlugin" import { TooltipProvider } from "@/components/ui/tooltip" import { editorTheme } from "@/components/editor/themes/editor-theme" import { ContentEditable } from "@/components/editor/editor-ui/content-editable" import { ToolbarPlugin } from "@/components/editor/plugins/toolbar/toolbar-plugin" import { BlockInsertPlugin } from "@/components/editor/plugins/toolbar/block-insert-plugin" import { InsertCollapsibleContainer } from "@/components/editor/plugins/toolbar/block-insert/insert-collapsible-container" import { CollapsibleTitleNode } from "@/components/editor/nodes/collapsible-title-node" import { CollapsibleContentNode } from "@/components/editor/nodes/collapsible-content-node" import { CollapsibleContainerNode } from "@/components/editor/nodes/collapsible-container-node" import { CollapsiblePlugin } from "@/components/editor/plugins/collapsible-plugin" const editorConfig: InitialConfigType = { namespace: 'Editor', theme: editorTheme, nodes: [ HeadingNode, ParagraphNode, TextNode, QuoteNode, CollapsibleTitleNode, CollapsibleContentNode, CollapsibleContainerNode ], onError: (error: Error) => { console.error(error) }, } export function RichTextEditorDemo() { return (

{/* toolbar plugins */} {({ blockType }) => (

)}

} ErrorBoundary={LexicalErrorBoundary} /> {/* rest of the plugins */}

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'@lexical/utils' import { $createParagraphNode, $getSelection, $isRangeSelection, COMMAND_PRIORITY_LOW, DELETE_CHARACTER_COMMAND, ElementNode, INSERT_PARAGRAPH_COMMAND, KEY_ARROW_DOWN_COMMAND, KEY_ARROW_LEFT_COMMAND, KEY_ARROW_RIGHT_COMMAND, KEY_ARROW_UP_COMMAND, LexicalNode, createCommand, } from 'lexical' import { $createCollapsibleContainerNode, $isCollapsibleContainerNode, CollapsibleContainerNode, } from '@/components/editor/nodes/collapsible-container-node' import { $createCollapsibleContentNode, $isCollapsibleContentNode, CollapsibleContentNode, } from '@/components/editor/nodes/collapsible-content-node' import { $createCollapsibleTitleNode, $isCollapsibleTitleNode, CollapsibleTitleNode, } from '@/components/editor/nodes/collapsible-title-node' export const INSERT_COLLAPSIBLE_COMMAND = createCommand() export function CollapsiblePlugin(): null { const [editor] = useLexicalComposerContext() useEffect(() => { if ( !editor.hasNodes([ CollapsibleContainerNode, CollapsibleTitleNode, CollapsibleContentNode, ]) ) { throw new Error( 'CollapsiblePlugin: CollapsibleContainerNode, CollapsibleTitleNode, or CollapsibleContentNode not registered on editor' ) } const $onEscapeUp = () => { const selection = $getSelection() if ( $isRangeSelection(selection) && selection.isCollapsed() && selection.anchor.offset === 0 ) { const container = $findMatchingParent( selection.anchor.getNode(), $isCollapsibleContainerNode ) if ($isCollapsibleContainerNode(container)) { const parent = container.getParent() if ( parent !== null && parent.getFirstChild() === container && selection.anchor.key === container.getFirstDescendant()?.getKey() ) { container.insertBefore($createParagraphNode()) } } } return false } const $onEscapeDown = () => { const selection = $getSelection() if ($isRangeSelection(selection) && selection.isCollapsed()) { const container = $findMatchingParent( selection.anchor.getNode(), $isCollapsibleContainerNode ) if ($isCollapsibleContainerNode(container)) { const parent = container.getParent() if ( parent !== null && parent.getLastChild() === container ) { const titleParagraph = container.getFirstDescendant() const contentParagraph = container.getLastDescendant() if ( (contentParagraph !== null && selection.anchor.key === contentParagraph.getKey() && selection.anchor.offset === contentParagraph.getTextContentSize()) || (titleParagraph !== null && selection.anchor.key === titleParagraph.getKey() && selection.anchor.offset === titleParagraph.getTextContentSize()) ) { container.insertAfter($createParagraphNode()) } } } } return false } return mergeRegister( // Structure enforcing transformers for each node type. In case nesting structure is not // "Container > Title + Content" it'll unwrap nodes and convert it back // to regular content. editor.registerNodeTransform(CollapsibleContentNode, (node) => { const parent = node.getParent() if (!$isCollapsibleContainerNode(parent)) { const children = node.getChildren() for (const child of children) { node.insertBefore(child) } node.remove() } }), editor.registerNodeTransform(CollapsibleTitleNode, (node) => { const parent = node.getParent() if (!$isCollapsibleContainerNode(parent)) { node.replace( $createParagraphNode().append(...node.getChildren()) ) return } }), editor.registerNodeTransform(CollapsibleContainerNode, (node) => { const children = node.getChildren() if ( children.length !== 2 || !$isCollapsibleTitleNode(children[0]) || !$isCollapsibleContentNode(children[1]) ) { for (const child of children) { node.insertBefore(child) } node.remove() } }), // This handles the case when container is collapsed and we delete its previous sibling // into it, it would cause collapsed content deleted (since it's display: none, and selection // swallows it when deletes single char). Instead we expand container, which is although // not perfect, but avoids bigger problem editor.registerCommand( DELETE_CHARACTER_COMMAND, () => { const selection = $getSelection() if ( !$isRangeSelection(selection) || !selection.isCollapsed() || selection.anchor.offset !== 0 ) { return false } const anchorNode = selection.anchor.getNode() const topLevelElement = anchorNode.getTopLevelElement() if (topLevelElement === null) { return false } const container = topLevelElement.getPreviousSibling() if (!$isCollapsibleContainerNode(container) || container.getOpen()) { return false } container.setOpen(true) return true }, COMMAND_PRIORITY_LOW ), // When collapsible is the last child pressing down/right arrow will insert paragraph // below it to allow adding more content. It's similar what $insertBlockNode // (mainly for decorators), except it'll always be possible to continue adding // new content even if trailing paragraph is accidentally deleted editor.registerCommand( KEY_ARROW_DOWN_COMMAND, $onEscapeDown, COMMAND_PRIORITY_LOW ), editor.registerCommand( KEY_ARROW_RIGHT_COMMAND, $onEscapeDown, COMMAND_PRIORITY_LOW ), // When collapsible is the first child pressing up/left arrow will insert paragraph // above it to allow adding more content. 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$isCollapsibleContainerNode, CollapsibleContainerNode, } from '@/components/editor/nodes/collapsible-container-node' import { $createCollapsibleContentNode, $isCollapsibleContentNode, CollapsibleContentNode, } from '@/components/editor/nodes/collapsible-content-node' import { $createCollapsibleTitleNode, $isCollapsibleTitleNode, CollapsibleTitleNode, } from '@/components/editor/nodes/collapsible-title-node' export const INSERT_COLLAPSIBLE_COMMAND = createCommand() export function CollapsiblePlugin(): null { const [editor] = useLexicalComposerContext() useEffect(() => { if ( !editor.hasNodes([ CollapsibleContainerNode, CollapsibleTitleNode, CollapsibleContentNode, ]) ) { throw new Error( 'CollapsiblePlugin: CollapsibleContainerNode, CollapsibleTitleNode, or CollapsibleContentNode not registered on editor' ) } const $onEscapeUp = () => { const selection = $getSelection() if ( $isRangeSelection(selection) && selection.isCollapsed() && selection.anchor.offset === 0 ) { const container = $findMatchingParent( selection.anchor.getNode(), $isCollapsibleContainerNode ) if ($isCollapsibleContainerNode(container)) { const parent = container.getParent() if ( parent !== null && parent.getFirstChild() === container && selection.anchor.key === container.getFirstDescendant()?.getKey() ) { container.insertBefore($createParagraphNode()) } } } return false } const $onEscapeDown = () => { const selection = $getSelection() if ($isRangeSelection(selection) && selection.isCollapsed()) { const container = $findMatchingParent( selection.anchor.getNode(), $isCollapsibleContainerNode ) if ($isCollapsibleContainerNode(container)) { const parent = container.getParent() if ( parent !== null && parent.getLastChild() === container ) { const titleParagraph = container.getFirstDescendant() const contentParagraph = container.getLastDescendant() if ( (contentParagraph !== null && selection.anchor.key === contentParagraph.getKey() && selection.anchor.offset === contentParagraph.getTextContentSize()) || (titleParagraph !== null && selection.anchor.key === titleParagraph.getKey() && selection.anchor.offset === titleParagraph.getTextContentSize()) ) { container.insertAfter($createParagraphNode()) } } } } return false } return mergeRegister( // Structure enforcing transformers for each node type. In case nesting structure is not // "Container > Title + Content" it'll unwrap nodes and convert it back // to regular content. editor.registerNodeTransform(CollapsibleContentNode, (node) => { const parent = node.getParent() if (!$isCollapsibleContainerNode(parent)) { const children = node.getChildren() for (const child of children) { node.insertBefore(child) } node.remove() } }), editor.registerNodeTransform(CollapsibleTitleNode, (node) => { const parent = node.getParent() if (!$isCollapsibleContainerNode(parent)) { node.replace( $createParagraphNode().append(...node.getChildren()) ) return } }), editor.registerNodeTransform(CollapsibleContainerNode, (node) => { const children = node.getChildren() if ( children.length !== 2 || !$isCollapsibleTitleNode(children[0]) || !$isCollapsibleContentNode(children[1]) ) { for (const child of children) { node.insertBefore(child) } node.remove() } }), // This handles the case when container is collapsed and we delete its previous sibling // into it, it would cause collapsed content deleted (since it's display: none, and selection // swallows it when deletes single char). Instead we expand container, which is although // not perfect, but avoids bigger problem editor.registerCommand( DELETE_CHARACTER_COMMAND, () => { const selection = $getSelection() if ( !$isRangeSelection(selection) || !selection.isCollapsed() || selection.anchor.offset !== 0 ) { return false } const anchorNode = selection.anchor.getNode() const topLevelElement = anchorNode.getTopLevelElement() if (topLevelElement === null) { return false } const container = topLevelElement.getPreviousSibling() if (!$isCollapsibleContainerNode(container) || container.getOpen()) { return false } container.setOpen(true) return true }, COMMAND_PRIORITY_LOW ), // When collapsible is the last child pressing down/right arrow will insert paragraph // below it to allow adding more content. It's similar what $insertBlockNode // (mainly for decorators), except it'll always be possible to continue adding // new content even if trailing paragraph is accidentally deleted editor.registerCommand( KEY_ARROW_DOWN_COMMAND, $onEscapeDown, COMMAND_PRIORITY_LOW ), editor.registerCommand( KEY_ARROW_RIGHT_COMMAND, $onEscapeDown, COMMAND_PRIORITY_LOW ), // When collapsible is the first child pressing up/left arrow will insert paragraph // above it to allow adding more content. It's similar what $insertBlockNode // (mainly for decorators), except it'll always be possible to continue adding // new content even if leading paragraph is accidentally deleted editor.registerCommand( KEY_ARROW_UP_COMMAND, $onEscapeUp, COMMAND_PRIORITY_LOW ), editor.registerCommand( KEY_ARROW_LEFT_COMMAND, $onEscapeUp, COMMAND_PRIORITY_LOW ), // Enter goes from Title to Content rather than a new line inside Title editor.registerCommand( INSERT_PARAGRAPH_COMMAND, () => { const selection = $getSelection() if ($isRangeSelection(selection)) { const titleNode = $findMatchingParent( selection.anchor.getNode(), (node) => $isCollapsibleTitleNode(node) ) if ($isCollapsibleTitleNode(titleNode)) { const container = titleNode.getParent() if (container && $isCollapsibleContainerNode(container)) { if (!container.getOpen()) { container.toggleOpen() } titleNode.getNextSibling()?.selectEnd() return true } } } return false }, COMMAND_PRIORITY_LOW ), editor.registerCommand( INSERT_COLLAPSIBLE_COMMAND, 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