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import { Extension, CommandProps } from '@tiptap/core'
import { Node as ProseMirrorNode } from '@tiptap/pm/model'
const INDENT_CLASS_NAME = 'text-indent'
// Вспомогательная функция для добавления/удаления CSS-класса
const toggleCssClass = (currentClasses: string | null | undefined, className: string): string | null => {
const classes = new Set((currentClasses || '').split(' ').filter(Boolean))
if (classes.has(className)) {
classes.delete(className)
} else {
classes.add(className)
}
return classes.size > 0 ? Array.from(classes).join(' ') : null
}
export const Indent = Extension.create({
name: 'indent',
addCommands() {
return {
toggleIndent:
() =>
({ tr, state, dispatch }: CommandProps): boolean => {
const { selection } = state
const { from, to } = selection
let changed = false
tr.doc.nodesBetween(from, to, (node: ProseMirrorNode, pos: number) => {
if (node.type.name === 'paragraph') {
const currentClasses = node.attrs.class as string | null | undefined
const newClasses = toggleCssClass(currentClasses, INDENT_CLASS_NAME)
if (newClasses !== currentClasses) {
tr.setNodeMarkup(pos, undefined, {
...node.attrs,
class: newClasses,
})
changed = true
}
}
return false // Не углубляться
})
if (changed && dispatch) {
dispatch(tr.scrollIntoView())
return true
}
return false
},
}
},
// Можно убрать, если не используешь
addStorage() {
return {
isActive: (state: any): boolean => {
const { $from } = state.selection
const node = $from.node($from.depth)
if (node?.type.name === 'paragraph') {
return (node.attrs.class || '').split(' ').includes(INDENT_CLASS_NAME)
}
return false
},
}
},
})