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1. fix: equation input undo not working
2. feat: add equation and inline-equation elements in editor and slashmenu
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79 changes: 79 additions & 0 deletions
79
apps/www/src/registry/default/plate-ui/equation-element.tsx
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,79 @@ | ||
| 'use client'; | ||
|
|
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| import React, { useRef, useState } from 'react'; | ||
|
|
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| import type { TEquationElement } from '@udecode/plate-math'; | ||
|
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| import { cn, withRef } from '@udecode/cn'; | ||
| import { useElement } from '@udecode/plate-common/react'; | ||
| import { useEquationElement } from '@udecode/plate-math/react'; | ||
| import { RadicalIcon } from 'lucide-react'; | ||
|
|
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| import { EquationPopoverContent } from './equation-popover'; | ||
| import { PlateElement } from './plate-element'; | ||
| import { Popover, PopoverTrigger } from './popover'; | ||
|
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| export const EquationElement = withRef<typeof PlateElement>( | ||
| ({ children, className, ...props }, ref) => { | ||
| const element = useElement<TEquationElement>(); | ||
|
|
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| const [open, setOpen] = useState(false); | ||
| const katexRef = useRef<HTMLDivElement | null>(null); | ||
|
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| useEquationElement({ | ||
| element, | ||
| katexRef: katexRef, | ||
| options: { | ||
| displayMode: true, | ||
| errorColor: '#cc0000', | ||
| fleqn: false, | ||
| leqno: false, | ||
| macros: { '\\f': '#1f(#2)' }, | ||
| output: 'htmlAndMathml', | ||
| strict: 'warn', | ||
| throwOnError: false, | ||
| trust: false, | ||
| }, | ||
| }); | ||
|
|
||
| return ( | ||
| <PlateElement | ||
| ref={ref} | ||
| className={cn('relative my-1', className)} | ||
| {...props} | ||
| > | ||
| <Popover open={open} onOpenChange={setOpen} modal={false}> | ||
| <PopoverTrigger asChild> | ||
| <div | ||
| className={cn( | ||
| 'group flex cursor-pointer select-none items-center justify-center rounded-sm hover:bg-primary/10', | ||
| element.texExpression.length === 0 | ||
| ? 'bg-muted p-3 pr-9' | ||
| : 'px-2 py-1' | ||
| )} | ||
| contentEditable={false} | ||
| role="button" | ||
| > | ||
| {element.texExpression.length > 0 ? ( | ||
| <span ref={katexRef} /> | ||
| ) : ( | ||
| <div className="flex h-7 w-full items-center gap-2 whitespace-nowrap text-sm text-muted-foreground"> | ||
| <RadicalIcon className="size-6 text-muted-foreground/80" /> | ||
| <div>Add a Tex equation</div> | ||
| </div> | ||
| )} | ||
| </div> | ||
| </PopoverTrigger> | ||
|
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| <EquationPopoverContent | ||
| placeholder={`f(x) = \\begin{cases}\n x^2, &\\quad x > 0 \\\\\n 0, &\\quad x = 0 \\\\\n -x^2, &\\quad x < 0\n\\end{cases}`} | ||
| isInline={false} | ||
| setOpen={setOpen} | ||
| /> | ||
| </Popover> | ||
|
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| {children} | ||
| </PlateElement> | ||
| ); | ||
| } | ||
| ); |
83 changes: 83 additions & 0 deletions
83
apps/www/src/registry/default/plate-ui/equation-popover.tsx
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,83 @@ | ||
| 'use client'; | ||
|
|
||
| import React, { useEffect } from 'react'; | ||
| import TextareaAutosize, { | ||
| type TextareaAutosizeProps, | ||
| } from 'react-textarea-autosize'; | ||
|
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| import type { TEquationElement } from '@udecode/plate-math'; | ||
|
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| import { cn } from '@udecode/cn'; | ||
| import { | ||
| createPrimitiveComponent, | ||
| selectSiblingNodePoint, | ||
| useEditorRef, | ||
| useElement, | ||
| } from '@udecode/plate-common/react'; | ||
| import { useEquationInput } from '@udecode/plate-math/react'; | ||
| import { BlockSelectionPlugin } from '@udecode/plate-selection/react'; | ||
| import { CornerDownLeftIcon } from 'lucide-react'; | ||
| import { useReadOnly, useSelected } from 'slate-react'; | ||
|
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| import { Button } from './button'; | ||
| import { PopoverContent } from './popover'; | ||
|
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| const EquationInput = createPrimitiveComponent(TextareaAutosize)({ | ||
| propsHook: useEquationInput, | ||
| }); | ||
|
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| const EquationPopoverContent = ({ | ||
| className, | ||
| isInline, | ||
| setOpen, | ||
| ...props | ||
| }: { | ||
| isInline: boolean; | ||
| setOpen: (open: boolean) => void; | ||
| } & TextareaAutosizeProps) => { | ||
| const editor = useEditorRef(); | ||
| const readOnly = useReadOnly(); | ||
| const element = useElement<TEquationElement>(); | ||
| const selected = useSelected(); | ||
|
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| useEffect(() => { | ||
| setOpen(selected); | ||
| }, [selected, setOpen]); | ||
|
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| if (readOnly) return null; | ||
|
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| const onClose = () => { | ||
| setOpen(false); | ||
|
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| if (isInline) { | ||
| selectSiblingNodePoint(editor, { node: element }); | ||
| } else { | ||
| editor | ||
| .getApi(BlockSelectionPlugin) | ||
| .blockSelection.addSelectedRow(element.id as string); | ||
| } | ||
| }; | ||
|
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||
| return ( | ||
| <PopoverContent | ||
| className="flex gap-2" | ||
| onEscapeKeyDown={(e) => { | ||
| e.preventDefault(); | ||
| }} | ||
| contentEditable={false} | ||
| > | ||
| <EquationInput | ||
| className={cn('max-h-[50vh] grow resize-none p-2 text-sm', className)} | ||
| state={{ isInline, open: true, onClose }} | ||
| autoFocus | ||
| {...props} | ||
| /> | ||
|
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| <Button variant="secondary" className="px-3" onClick={onClose}> | ||
| Done <CornerDownLeftIcon className="size-3.5" /> | ||
| </Button> | ||
| </PopoverContent> | ||
| ); | ||
| }; | ||
|
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| export { EquationPopoverContent }; |
88 changes: 88 additions & 0 deletions
88
apps/www/src/registry/default/plate-ui/inline-equation-element.tsx
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,88 @@ | ||
| 'use client'; | ||
|
|
||
| import { useRef, useState } from 'react'; | ||
|
|
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| import type { TEquationElement } from '@udecode/plate-math'; | ||
|
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| import { cn, withRef } from '@udecode/cn'; | ||
| import { useElement } from '@udecode/plate-common/react'; | ||
| import { useEquationElement } from '@udecode/plate-math/react'; | ||
| import { RadicalIcon } from 'lucide-react'; | ||
|
|
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| import { EquationPopoverContent } from './equation-popover'; | ||
| import { PlateElement } from './plate-element'; | ||
| import { Popover, PopoverTrigger } from './popover'; | ||
|
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| export const InlineEquationElement = withRef<typeof PlateElement>( | ||
| ({ children, className, ...props }, ref) => { | ||
| const element = useElement<TEquationElement>(); | ||
| const katexRef = useRef<HTMLDivElement | null>(null); | ||
| const [open, setOpen] = useState(false); | ||
|
|
||
| useEquationElement({ | ||
| element, | ||
| katexRef: katexRef, | ||
| options: { | ||
| displayMode: true, | ||
| errorColor: '#cc0000', | ||
| fleqn: false, | ||
| leqno: false, | ||
| macros: { '\\f': '#1f(#2)' }, | ||
| output: 'htmlAndMathml', | ||
| strict: 'warn', | ||
| throwOnError: false, | ||
| trust: false, | ||
| }, | ||
| }); | ||
|
|
||
| return ( | ||
| <PlateElement | ||
| ref={ref} | ||
| className={cn( | ||
| 'inline-block select-none rounded-sm [&_.katex-display]:my-0', | ||
| className | ||
| )} | ||
| {...props} | ||
| > | ||
| <Popover open={open} onOpenChange={setOpen} modal={false}> | ||
| <PopoverTrigger asChild> | ||
| <div | ||
| className={cn( | ||
| 'after:absolute after:inset-0 after:-left-1 after:-top-0.5 after:z-[1] after:h-[calc(100%)+4px] after:w-[calc(100%+8px)] after:rounded-sm after:content-[""]', | ||
| 'h-6', | ||
| element.texExpression.length > 0 && open && 'after:bg-brand/15', | ||
| element.texExpression.length === 0 && | ||
| 'text-muted-foreground after:bg-neutral-500/10', | ||
| className | ||
| )} | ||
| contentEditable={false} | ||
| > | ||
| <span | ||
| ref={katexRef} | ||
| className={cn( | ||
| element.texExpression.length === 0 && 'hidden', | ||
| 'font-mono leading-none' | ||
| )} | ||
| /> | ||
| {element.texExpression.length === 0 && ( | ||
| <span> | ||
| <RadicalIcon className="mr-1 inline-block h-[19px] w-4 py-[1.5px] align-text-bottom" /> | ||
| New equation | ||
| </span> | ||
| )} | ||
| </div> | ||
| </PopoverTrigger> | ||
|
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| <EquationPopoverContent | ||
| className="my-auto" | ||
| placeholder="E = mc^2" | ||
| setOpen={setOpen} | ||
| isInline | ||
| /> | ||
| </Popover> | ||
|
|
||
| {children} | ||
| </PlateElement> | ||
| ); | ||
| } | ||
| ); |
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