593 lines
16 KiB
Vue
593 lines
16 KiB
Vue
<script setup>
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const props = defineProps({
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modelValue: {
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type: String,
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default: ''
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}
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})
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const emit = defineEmits(['update:modelValue'])
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const editorBlocks = ref([])
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const blockRefs = ref([])
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const activeBlockId = ref('')
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const slashQuery = ref('')
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const slashMenuDirection = ref('down')
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const isApplyingExternalValue = ref(false)
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let blockIdSeed = 0
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const blockCommands = [
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{
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type: 'paragraph',
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label: '문단',
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description: '기본 본문 블록',
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keywords: ['p', 'text', 'paragraph', '문단']
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},
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{
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type: 'heading',
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level: 2,
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label: '제목 2',
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description: '섹션 제목',
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keywords: ['h2', 'heading', 'title', '제목']
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},
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{
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type: 'heading',
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level: 3,
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label: '제목 3',
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description: '작은 섹션 제목',
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keywords: ['h3', 'heading', 'subtitle', '제목']
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},
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{
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type: 'quote',
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label: '인용',
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description: '강조 인용문',
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keywords: ['quote', 'blockquote', '인용']
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},
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{
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type: 'list',
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label: '목록',
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description: '불릿 목록',
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keywords: ['list', 'bullet', '목록']
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},
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{
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type: 'code',
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label: '코드',
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description: '코드 블록',
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keywords: ['code', 'pre', '코드']
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},
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{
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type: 'divider',
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label: '구분선',
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description: '본문 구간 분리',
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keywords: ['divider', 'hr', 'line', '구분선']
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}
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]
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/**
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* 에디터 블록 생성
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* @param {string} type - 블록 타입
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* @param {string} text - 블록 텍스트
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* @param {number|null} level - 제목 레벨
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* @param {string} id - 블록 ID
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* @returns {{ id: string, type: string, text: string, level: number|null }} 에디터 블록
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*/
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const createEditorBlock = (type = 'paragraph', text = '', level = null, id = '') => ({
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id: id || `editor-block-new-${blockIdSeed += 1}`,
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type,
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text,
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level
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})
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/**
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* 저장된 마크다운 문자열을 에디터 블록으로 변환
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* @param {string} markdown - 마크다운 문자열
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* @returns {Array<Object>} 에디터 블록 목록
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*/
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const parseMarkdownToBlocks = (markdown) => {
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const lines = markdown.split('\n')
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const blocks = []
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let index = 0
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while (index < lines.length) {
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const line = lines[index]
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const trimmedLine = line.trim()
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if (!trimmedLine) {
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index += 1
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continue
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}
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if (trimmedLine.startsWith('```')) {
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const codeLines = []
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index += 1
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while (index < lines.length && !lines[index].trim().startsWith('```')) {
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codeLines.push(lines[index])
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index += 1
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}
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blocks.push(createEditorBlock('code', codeLines.join('\n'), null, `editor-block-${blocks.length}`))
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index += 1
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continue
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}
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if (trimmedLine === '---') {
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blocks.push(createEditorBlock('divider', '', null, `editor-block-${blocks.length}`))
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index += 1
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continue
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}
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const headingMatch = trimmedLine.match(/^(#{1,3})\s+(.+)$/)
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if (headingMatch) {
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blocks.push(createEditorBlock('heading', headingMatch[2], headingMatch[1].length, `editor-block-${blocks.length}`))
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index += 1
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continue
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}
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if (trimmedLine.startsWith('> ')) {
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blocks.push(createEditorBlock('quote', trimmedLine.replace(/^>\s?/, ''), null, `editor-block-${blocks.length}`))
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index += 1
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continue
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}
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if (/^- /.test(trimmedLine)) {
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blocks.push(createEditorBlock('list', trimmedLine.replace(/^- /, ''), null, `editor-block-${blocks.length}`))
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index += 1
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continue
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}
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blocks.push(createEditorBlock('paragraph', trimmedLine, null, `editor-block-${blocks.length}`))
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index += 1
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}
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return blocks.length ? blocks : [createEditorBlock('paragraph', '', null, 'editor-block-0')]
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}
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/**
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* 에디터 블록 목록을 저장용 마크다운으로 변환
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* @returns {string} 마크다운 문자열
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*/
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const serializeBlocks = () => {
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const lines = editorBlocks.value
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.map((block) => {
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const text = block.text.trim()
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if (block.type === 'divider') {
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return { type: block.type, value: '---' }
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}
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if (!text) {
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return null
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}
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if (block.type === 'heading') {
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return { type: block.type, value: `${'#'.repeat(block.level || 2)} ${text}` }
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}
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if (block.type === 'quote') {
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return { type: block.type, value: `> ${text}` }
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}
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if (block.type === 'list') {
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return { type: block.type, value: `- ${text}` }
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}
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if (block.type === 'code') {
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return { type: block.type, value: `\`\`\`\n${block.text}\n\`\`\`` }
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}
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return { type: block.type, value: text }
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})
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.filter(Boolean)
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return lines.reduce((markdown, line, index) => {
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if (index === 0) {
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return line.value
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}
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const previousLine = lines[index - 1]
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const joiner = previousLine.type === 'list' && line.type === 'list'
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? '\n'
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: '\n\n'
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return `${markdown}${joiner}${line.value}`
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}, '')
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}
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/**
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* 부모 폼으로 콘텐츠 변경 전달
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* @returns {void}
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*/
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const emitContent = () => {
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emit('update:modelValue', serializeBlocks())
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}
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/**
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* 블록 DOM 요소를 저장
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* @param {Element|null} element - 블록 DOM 요소
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* @param {number} index - 블록 인덱스
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* @returns {void}
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*/
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const setBlockRef = (element, index) => {
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if (element) {
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blockRefs.value[index] = element
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if (element.innerText !== editorBlocks.value[index]?.text) {
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element.innerText = editorBlocks.value[index]?.text || ''
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}
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}
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}
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/**
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* 지정 블록으로 커서 이동
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* @param {number} index - 블록 인덱스
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* @returns {void}
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*/
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const focusBlock = (index) => {
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nextTick(() => {
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const element = blockRefs.value[index]
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if (!element) {
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return
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}
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element.focus()
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const selection = window.getSelection()
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const range = document.createRange()
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range.selectNodeContents(element)
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range.collapse(false)
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selection.removeAllRanges()
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selection.addRange(range)
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})
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}
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/**
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* 슬래시 메뉴 표시 방향 갱신
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* @param {number} index - 블록 인덱스
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* @returns {void}
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*/
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const updateSlashMenuDirection = (index) => {
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nextTick(() => {
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const element = blockRefs.value[index]
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if (!element) {
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slashMenuDirection.value = 'down'
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return
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}
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const rect = element.getBoundingClientRect()
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const menuHeight = 280
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slashMenuDirection.value = window.innerHeight - rect.bottom < menuHeight && rect.top > menuHeight
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? 'up'
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: 'down'
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})
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}
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/**
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* 블록 타입에 맞는 태그명 반환
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* @param {Object} block - 에디터 블록
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* @returns {string} HTML 태그명
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*/
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const getBlockTag = (block) => {
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if (block.type === 'heading') {
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return `h${block.level || 2}`
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}
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if (block.type === 'quote') {
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return 'blockquote'
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}
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if (block.type === 'code') {
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return 'pre'
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}
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return 'div'
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}
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/**
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* 블록 타입에 맞는 클래스 반환
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* @param {Object} block - 에디터 블록
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* @returns {Array<string|Object>} 클래스 목록
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*/
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const getBlockClass = (block) => [
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'admin-block-editor__block outline-none transition-colors',
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{
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'admin-block-editor__paragraph min-h-8 text-[17px] leading-8': block.type === 'paragraph',
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'admin-block-editor__heading mt-8 min-h-10 font-semibold leading-tight': block.type === 'heading',
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'admin-block-editor__heading--h1 text-5xl': block.type === 'heading' && block.level === 1,
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'admin-block-editor__heading--h2 text-4xl': block.type === 'heading' && block.level === 2,
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'admin-block-editor__heading--h3 text-3xl': block.type === 'heading' && block.level === 3,
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'admin-block-editor__quote my-5 border-l-4 border-ink bg-surface px-5 py-3 text-xl font-medium leading-8': block.type === 'quote',
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'admin-block-editor__list relative min-h-8 pl-7 text-[17px] leading-8 before:absolute before:left-2 before:top-3 before:h-2 before:w-2 before:rounded-full before:bg-current': block.type === 'list',
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'admin-block-editor__code my-5 min-h-14 whitespace-pre-wrap rounded bg-[#15171a] px-4 py-3 font-mono text-sm leading-6 text-white': block.type === 'code'
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}
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]
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/**
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* 블록 텍스트 입력 처리
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* @param {InputEvent} event - 입력 이벤트
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* @param {number} index - 블록 인덱스
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* @returns {void}
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*/
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const updateBlockText = (event, index) => {
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const block = editorBlocks.value[index]
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const text = event.target.innerText.replace(/\n$/, '')
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block.text = text
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activeBlockId.value = block.id
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applyMarkdownShortcut(block, index)
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updateSlashQuery(block)
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updateSlashMenuDirection(index)
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emitContent()
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}
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/**
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* 마크다운 입력 단축 문법 적용
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* @param {Object} block - 에디터 블록
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* @param {number} index - 블록 인덱스
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* @returns {void}
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*/
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const applyMarkdownShortcut = (block, index) => {
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const shortcutMap = [
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{ marker: '# ', type: 'heading', level: 1 },
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{ marker: '## ', type: 'heading', level: 2 },
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{ marker: '### ', type: 'heading', level: 3 },
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{ marker: '> ', type: 'quote' },
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{ marker: '- ', type: 'list' },
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{ marker: '``` ', type: 'code' }
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].sort((a, b) => b.marker.length - a.marker.length)
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const shortcut = shortcutMap.find((item) => block.text.startsWith(item.marker))
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if (!shortcut) {
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return
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}
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block.type = shortcut.type
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block.level = shortcut.level || null
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block.text = block.text.slice(shortcut.marker.length)
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slashQuery.value = ''
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nextTick(() => {
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const element = blockRefs.value[index]
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if (element) {
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element.innerText = block.text
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focusBlock(index)
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}
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})
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}
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/**
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* 슬래시 메뉴 검색어 갱신
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* @param {Object} block - 에디터 블록
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* @returns {void}
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*/
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const updateSlashQuery = (block) => {
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slashQuery.value = block.text.startsWith('/')
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? block.text.slice(1).trim().toLowerCase()
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: ''
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}
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const activeBlockIndex = computed(() => editorBlocks.value.findIndex((block) => block.id === activeBlockId.value))
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const visibleCommands = computed(() => {
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if (activeBlockIndex.value < 0) {
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return []
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}
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const block = editorBlocks.value[activeBlockIndex.value]
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if (!block?.text.startsWith('/')) {
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return []
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}
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return blockCommands.filter((command) => [
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command.label,
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command.description,
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...command.keywords
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].some((keyword) => keyword.toLowerCase().includes(slashQuery.value)))
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})
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/**
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* 슬래시 메뉴 명령 적용
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* @param {Object} command - 블록 명령
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* @returns {void}
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*/
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const applyCommand = (command) => {
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const index = activeBlockIndex.value
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if (index < 0) {
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return
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}
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const block = editorBlocks.value[index]
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block.type = command.type
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block.level = command.level || null
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block.text = ''
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const element = blockRefs.value[index]
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if (element) {
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element.innerText = ''
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}
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slashQuery.value = ''
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if (command.type === 'divider') {
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editorBlocks.value.splice(index + 1, 0, createEditorBlock())
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emitContent()
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focusBlock(index + 1)
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return
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}
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emitContent()
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focusBlock(index)
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}
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/**
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* 엔터 키로 다음 블록 생성
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* @param {KeyboardEvent} event - 키보드 이벤트
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* @param {number} index - 블록 인덱스
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* @returns {void}
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*/
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const handleEnter = (event, index) => {
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const currentBlock = editorBlocks.value[index]
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if (currentBlock.type === 'code' && !event.shiftKey) {
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return
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}
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event.preventDefault()
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if (!currentBlock.text.trim() && currentBlock.type === 'paragraph') {
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return
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}
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if (currentBlock.type === 'divider') {
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editorBlocks.value.splice(index + 1, 0, createEditorBlock())
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emitContent()
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focusBlock(index + 1)
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return
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}
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if (!currentBlock.text.trim() && currentBlock.type !== 'paragraph') {
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currentBlock.type = 'paragraph'
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currentBlock.level = null
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emitContent()
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focusBlock(index)
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return
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}
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const nextType = currentBlock.type === 'list' ? 'list' : 'paragraph'
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editorBlocks.value.splice(index + 1, 0, createEditorBlock(nextType))
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emitContent()
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focusBlock(index + 1)
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}
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/**
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* 백스페이스 키로 빈 블록 삭제
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* @param {KeyboardEvent} event - 키보드 이벤트
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* @param {number} index - 블록 인덱스
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* @returns {void}
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*/
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const handleBackspace = (event, index) => {
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const block = editorBlocks.value[index]
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if (block.text || editorBlocks.value.length <= 1) {
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return
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}
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event.preventDefault()
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editorBlocks.value.splice(index, 1)
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emitContent()
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focusBlock(Math.max(index - 1, 0))
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}
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/**
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* 현재 블록 활성화
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* @param {Object} block - 에디터 블록
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* @returns {void}
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*/
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const activateBlock = (block) => {
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const index = editorBlocks.value.findIndex((item) => item.id === block.id)
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activeBlockId.value = block.id
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updateSlashQuery(block)
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updateSlashMenuDirection(index)
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}
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/**
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* 블록 placeholder 표시 여부 반환
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* @param {Object} block - 에디터 블록
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* @param {number} index - 블록 인덱스
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* @returns {boolean} placeholder 표시 여부
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*/
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const shouldShowPlaceholder = (block, index) => !block.text && (
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activeBlockId.value === block.id ||
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(index === 0 && editorBlocks.value.length === 1)
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)
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watch(() => props.modelValue, (value) => {
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if (isApplyingExternalValue.value) {
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return
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}
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const currentValue = serializeBlocks()
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if (value === currentValue) {
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return
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}
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editorBlocks.value = parseMarkdownToBlocks(value)
|
|
}, { immediate: true })
|
|
|
|
watch(editorBlocks, () => {
|
|
isApplyingExternalValue.value = true
|
|
nextTick(() => {
|
|
isApplyingExternalValue.value = false
|
|
})
|
|
}, { deep: true })
|
|
</script>
|
|
|
|
<template>
|
|
<div class="admin-block-editor min-h-[32rem] bg-transparent py-4">
|
|
<div class="admin-block-editor__surface post-prose grid gap-1">
|
|
<div
|
|
v-for="(block, index) in editorBlocks"
|
|
:key="block.id"
|
|
class="admin-block-editor__row relative"
|
|
>
|
|
<hr v-if="block.type === 'divider'" class="admin-block-editor__divider my-6 border-line">
|
|
<component
|
|
:is="getBlockTag(block)"
|
|
v-else
|
|
:ref="(element) => setBlockRef(element, index)"
|
|
:class="getBlockClass(block)"
|
|
contenteditable="true"
|
|
spellcheck="true"
|
|
:data-placeholder="index === 0 ? '본문을 입력하거나 / 를 눌러 블록을 선택하세요' : '/ 를 눌러 블록 선택'"
|
|
:data-show-placeholder="shouldShowPlaceholder(block, index)"
|
|
@focus="activateBlock(block)"
|
|
@input="updateBlockText($event, index)"
|
|
@keydown.enter="handleEnter($event, index)"
|
|
@keydown.backspace="handleBackspace($event, index)"
|
|
/>
|
|
|
|
<button
|
|
v-if="block.type === 'divider'"
|
|
class="admin-block-editor__divider-button w-full rounded py-2 text-left text-xs font-semibold text-muted"
|
|
type="button"
|
|
@click="activateBlock(block)"
|
|
@keydown.enter="handleEnter($event, index)"
|
|
>
|
|
구분선
|
|
</button>
|
|
|
|
<div
|
|
v-if="visibleCommands.length && activeBlockId === block.id"
|
|
class="admin-block-editor__slash-menu absolute left-0 z-20 w-72 overflow-hidden rounded border border-line bg-white shadow-lg"
|
|
:class="slashMenuDirection === 'up' ? 'bottom-full mb-2' : 'top-full mt-2'"
|
|
>
|
|
<button
|
|
v-for="command in visibleCommands"
|
|
:key="`${command.type}-${command.level || 'default'}`"
|
|
class="admin-block-editor__slash-item grid w-full gap-0.5 px-4 py-3 text-left hover:bg-surface"
|
|
type="button"
|
|
@mousedown.prevent="applyCommand(command)"
|
|
>
|
|
<span class="admin-block-editor__slash-label text-sm font-semibold">{{ command.label }}</span>
|
|
<span class="admin-block-editor__slash-description text-xs text-muted">{{ command.description }}</span>
|
|
</button>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
</template>
|
|
|
|
<style scoped>
|
|
.admin-block-editor__block:empty[data-show-placeholder="true"]::before {
|
|
color: var(--site-soft);
|
|
content: attr(data-placeholder);
|
|
}
|
|
</style>
|