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'@lexical/react/LexicalComposerContext' import { $findMatchingParent, $insertNodeToNearestRoot, mergeRegister, } from '@lexical/utils' import { LexicalEditor } from 'lexical' import type { ElementNode, LexicalCommand, LexicalNode, NodeKey } from 'lexical' import { $createParagraphNode, $getNodeByKey, $getSelection, $isRangeSelection, COMMAND_PRIORITY_EDITOR, COMMAND_PRIORITY_LOW, KEY_ARROW_DOWN_COMMAND, KEY_ARROW_LEFT_COMMAND, KEY_ARROW_RIGHT_COMMAND, KEY_ARROW_UP_COMMAND, createCommand, } from 'lexical' import { Button } from '@/components/ui/button' import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue, } from '@/components/ui/select' import { $createLayoutContainerNode, $isLayoutContainerNode, LayoutContainerNode, } from '@/components/editor/nodes/layout-container-node' import { $createLayoutItemNode, $isLayoutItemNode, LayoutItemNode, } from '@/components/editor/nodes/layout-item-node' const LAYOUTS = [ { label: '2 columns (equal width)', value: '1fr 1fr' }, { label: '2 columns (25% - 75%)', value: '1fr 3fr' }, { label: '3 columns (equal width)', value: '1fr 1fr 1fr' }, { label: '3 columns (25% - 50% - 25%)', value: '1fr 2fr 1fr' }, { label: '4 columns (equal width)', value: '1fr 1fr 1fr 1fr' }, ] export function InsertLayoutDialog({ activeEditor, onClose, }: { activeEditor: LexicalEditor onClose: () => void }): JSX.Element { const [layout, setLayout] = useState(LAYOUTS[0].value) const buttonLabel = LAYOUTS.find((item) => item.value === layout)?.label const onClick = () => { activeEditor.dispatchCommand(INSERT_LAYOUT_COMMAND, layout) onClose() } return ( <> ) } export const INSERT_LAYOUT_COMMAND: LexicalCommand = createCommand() export const UPDATE_LAYOUT_COMMAND: LexicalCommand<{ template: string nodeKey: NodeKey }> = createCommand<{ template: string; nodeKey: NodeKey }>() export function LayoutPlugin(): null { const [editor] = useLexicalComposerContext() useEffect(() => { if (!editor.hasNodes([LayoutContainerNode, LayoutItemNode])) { throw new Error( 'LayoutPlugin: LayoutContainerNode, or LayoutItemNode not registered on editor' ) } const $onEscape = (before: boolean) => { const selection = $getSelection() if ( $isRangeSelection(selection) && selection.isCollapsed() && selection.anchor.offset === 0 ) { const container = $findMatchingParent( selection.anchor.getNode(), $isLayoutContainerNode ) if ($isLayoutContainerNode(container)) { const parent = container.getParent() const child = parent && (before ? parent.getFirstChild() : parent?.getLastChild()) const descendant = before ? container.getFirstDescendant()?.getKey() : container.getLastDescendant()?.getKey() if ( parent !== null && child === container && selection.anchor.key === descendant ) { if (before) { container.insertBefore($createParagraphNode()) } else { container.insertAfter($createParagraphNode()) } } } } return false } return mergeRegister( // When layout 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, () => $onEscape(false), COMMAND_PRIORITY_LOW ), editor.registerCommand( KEY_ARROW_RIGHT_COMMAND, () => $onEscape(false), COMMAND_PRIORITY_LOW ), // When layout 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, () => $onEscape(true), COMMAND_PRIORITY_LOW ), editor.registerCommand( KEY_ARROW_LEFT_COMMAND, () => $onEscape(true), COMMAND_PRIORITY_LOW ), editor.registerCommand( INSERT_LAYOUT_COMMAND, (template) => { editor.update(() => { const container = $createLayoutContainerNode(template) const itemsCount = getItemsCountFromTemplate(template) for (let i = 0; i < itemsCount; i++) { container.append( $createLayoutItemNode().append($createParagraphNode()) ) } $insertNodeToNearestRoot(container) container.selectStart() }) return true }, COMMAND_PRIORITY_EDITOR ), editor.registerCommand( UPDATE_LAYOUT_COMMAND, ({ template, nodeKey }) => { editor.update(() => { const container = $getNodeByKey(nodeKey) if (!$isLayoutContainerNode(container)) { return } const itemsCount = getItemsCountFromTemplate(template) const prevItemsCount = getItemsCountFromTemplate( container.getTemplateColumns() ) // Add or remove extra columns if new template does not match existing one if (itemsCount > prevItemsCount) { for (let i = prevItemsCount; i < itemsCount; i++) { container.append( $createLayoutItemNode().append($createParagraphNode()) ) } } else if (itemsCount < prevItemsCount) { for (let i = prevItemsCount - 1; i >= itemsCount; i--) { const layoutItem = container.getChildAtIndex(i) if ($isLayoutItemNode(layoutItem)) { layoutItem.remove() } } } container.setTemplateColumns(template) }) return true }, COMMAND_PRIORITY_EDITOR ), // Structure enforcing transformers for each node type. 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KEY_ARROW_LEFT_COMMAND, KEY_ARROW_RIGHT_COMMAND, KEY_ARROW_UP_COMMAND, createCommand, } from 'lexical' import { Button } from '@/components/ui/button' import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue, } from '@/components/ui/select' import { $createLayoutContainerNode, $isLayoutContainerNode, LayoutContainerNode, } from '@/components/editor/nodes/layout-container-node' import { $createLayoutItemNode, $isLayoutItemNode, LayoutItemNode, } from '@/components/editor/nodes/layout-item-node' const LAYOUTS = [ { label: '2 columns (equal width)', value: '1fr 1fr' }, { label: '2 columns (25% - 75%)', value: '1fr 3fr' }, { label: '3 columns (equal width)', value: '1fr 1fr 1fr' }, { label: '3 columns (25% - 50% - 25%)', value: '1fr 2fr 1fr' }, { label: '4 columns (equal width)', value: '1fr 1fr 1fr 1fr' }, ] export function InsertLayoutDialog({ activeEditor, onClose, }: { activeEditor: LexicalEditor onClose: () => void }): JSX.Element { const [layout, setLayout] = useState(LAYOUTS[0].value) const buttonLabel = LAYOUTS.find((item) => item.value === layout)?.label const onClick = () => { activeEditor.dispatchCommand(INSERT_LAYOUT_COMMAND, layout) onClose() } return ( <> ) } export const INSERT_LAYOUT_COMMAND: LexicalCommand = createCommand() export const UPDATE_LAYOUT_COMMAND: LexicalCommand<{ template: string nodeKey: NodeKey }> = createCommand<{ template: string; nodeKey: NodeKey }>() export function LayoutPlugin(): null { const [editor] = useLexicalComposerContext() useEffect(() => { if (!editor.hasNodes([LayoutContainerNode, LayoutItemNode])) { throw new Error( 'LayoutPlugin: LayoutContainerNode, or LayoutItemNode not registered on editor' ) } const $onEscape = (before: boolean) => { const selection = $getSelection() if ( $isRangeSelection(selection) && selection.isCollapsed() && selection.anchor.offset === 0 ) { const container = $findMatchingParent( selection.anchor.getNode(), $isLayoutContainerNode ) if ($isLayoutContainerNode(container)) { const parent = container.getParent() const child = parent && (before ? parent.getFirstChild() : parent?.getLastChild()) const descendant = before ? container.getFirstDescendant()?.getKey() : container.getLastDescendant()?.getKey() if ( parent !== null && child === container && selection.anchor.key === descendant ) { if (before) { container.insertBefore($createParagraphNode()) } else { container.insertAfter($createParagraphNode()) } } } } return false } return mergeRegister( // When layout 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, () => $onEscape(false), COMMAND_PRIORITY_LOW ), editor.registerCommand( KEY_ARROW_RIGHT_COMMAND, () => $onEscape(false), COMMAND_PRIORITY_LOW ), // When layout 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, () => $onEscape(true), COMMAND_PRIORITY_LOW ), editor.registerCommand( KEY_ARROW_LEFT_COMMAND, () => $onEscape(true), COMMAND_PRIORITY_LOW ), editor.registerCommand( INSERT_LAYOUT_COMMAND, (template) => { editor.update(() => { const container = $createLayoutContainerNode(template) const itemsCount = getItemsCountFromTemplate(template) for (let i = 0; i < itemsCount; i++) { container.append( $createLayoutItemNode().append($createParagraphNode()) ) } $insertNodeToNearestRoot(container) container.selectStart() }) return true }, COMMAND_PRIORITY_EDITOR ), editor.registerCommand( UPDATE_LAYOUT_COMMAND, ({ template, nodeKey }) => { editor.update(() => { const container = $getNodeByKey(nodeKey) if (!$isLayoutContainerNode(container)) { return } const itemsCount = getItemsCountFromTemplate(template) const prevItemsCount = getItemsCountFromTemplate( container.getTemplateColumns() ) // Add or remove extra columns if new template does not match existing one if (itemsCount > prevItemsCount) { for (let i = prevItemsCount; i < itemsCount; i++) { container.append( $createLayoutItemNode().append($createParagraphNode()) ) } } else if (itemsCount < prevItemsCount) { for (let i = prevItemsCount - 1; i >= itemsCount; i--) { const layoutItem = container.getChildAtIndex(i) if ($isLayoutItemNode(layoutItem)) { layoutItem.remove() } } } container.setTemplateColumns(template) }) return true }, COMMAND_PRIORITY_EDITOR ), // Structure enforcing transformers for each node type. 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