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69 lines
1.4 KiB
69 lines
1.4 KiB
import { Selection } from 'slate'
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import merge from 'lodash/merge'
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import { toJS } from '../utils'
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import { SyncDoc, CursorKey } from '../model'
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export const setCursor = (
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doc: SyncDoc,
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key: CursorKey,
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selection: Selection,
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type,
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data
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) => {
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if (!doc) return
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if (!doc.annotations) {
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doc.annotations = {}
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}
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if (!doc.annotations[key]) {
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doc.annotations[key] = {
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key,
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type,
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data: {}
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}
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}
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const annotation = toJS(doc.annotations[key])
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annotation.focus = selection.end.toJSON()
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annotation.anchor = selection.start.toJSON()
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annotation.data = merge(annotation.data, data, {
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isBackward: selection.isBackward,
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targetPath: selection.isBackward
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? annotation.anchor.path
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: annotation.focus.path
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})
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doc.annotations[key] = annotation
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return doc
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}
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export const removeCursor = (doc: SyncDoc, key: CursorKey) => {
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if (doc.annotations && doc.annotations[key]) {
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delete doc.annotations[key]
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}
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return doc
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}
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export const cursorOpFilter = (ops, type: string) =>
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ops.filter(op => {
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if (op.type === 'set_annotation') {
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return !(
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(op.properties && op.properties.type === type) ||
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(op.newProperties && op.newProperties.type === type)
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)
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} else if (
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op.type === 'add_annotation' ||
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op.type === 'remove_annotation'
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) {
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return op.annotation.type !== type
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}
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return true
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})
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