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markdown-it-configurator (#626)

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Signed-off-by: Tilman Vatteroth <tilman.vatteroth@tu-dortmund.de>
Co-authored-by: Tilman Vatteroth <tilman.vatteroth@tu-dortmund.de>
Co-authored-by: Erik Michelson <github@erik.michelson.eu>
This commit is contained in:
Philip Molares 2020-10-08 22:24:42 +02:00 • committed by GitHub
parent 89968387c2
commit 0670cddb0b
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42 changed files with 524 additions and 360 deletions
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29
src/components/markdown-renderer/utils/use-post-meta-data-on-change.ts
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@ -1,29 +0,0 @@
import equal from 'fast-deep-equal'
import { useEffect, useRef } from 'react'
import { RawYAMLMetadata, YAMLMetaData } from '../../editor/yaml-metadata/yaml-metadata'
export const usePostMetaDataOnChange = (
rawMetaRef: RawYAMLMetadata|undefined,
firstHeadingRef: string|undefined,
onMetaDataChange?: (yamlMetaData: YAMLMetaData | undefined) => void,
onFirstHeadingChange?: (firstHeading: string | undefined) => void
): void => {
const oldMetaRef = useRef<RawYAMLMetadata>()
const oldFirstHeadingRef = useRef<string>()
useEffect(() => {
if (onMetaDataChange && !equal(oldMetaRef.current, rawMetaRef)) {
if (rawMetaRef) {
const newMetaData = new YAMLMetaData(rawMetaRef)
onMetaDataChange(newMetaData)
} else {
onMetaDataChange(undefined)
}
oldMetaRef.current = rawMetaRef
}
if (onFirstHeadingChange && !equal(firstHeadingRef, oldFirstHeadingRef.current)) {
onFirstHeadingChange(firstHeadingRef || undefined)
oldFirstHeadingRef.current = firstHeadingRef
}
})
}