import Vue, { VNode } from 'vue'; import { length } from 'stringz'; import { MfmForest } from '../../../../../mfm/parser'; import parse from '../../../../../mfm/parse'; import MkUrl from './url.vue'; import MkMention from './mention.vue'; import { concat, sum } from '../../../../../prelude/array'; import MkFormula from './formula.vue'; import MkGoogle from './google.vue'; import syntaxHighlight from '../../../../../mfm/syntax-highlight'; import { host } from '../../../config'; import { preorderF, countNodesF } from '../../../../../prelude/tree'; function sumTextsLength(ts: MfmForest): number { const textNodes = preorderF(ts).filter(n => n.type === 'text'); return sum(textNodes.map(x => length(x.props.text))); } export default Vue.component('misskey-flavored-markdown', { props: { text: { type: String, required: true }, shouldBreak: { type: Boolean, default: true }, plainText: { type: Boolean, default: false }, author: { type: Object, default: null }, i: { type: Object, default: null }, customEmojis: { required: false, } }, render(createElement) { if (this.text == null || this.text == '') return; const ast = parse(this.text, this.plainText); let bigCount = 0; let motionCount = 0; const genEl = (ast: MfmForest) => concat(ast.map((token): VNode[] => { switch (token.node.type) { case 'text': { const text = token.node.props.text.replace(/(\r\n|\n|\r)/g, '\n'); if (this.shouldBreak) { const x = text.split('\n') .map(t => t == '' ? [createElement('br')] : [createElement('span', t), createElement('br')]); x[x.length - 1].pop(); return x; } else { return [createElement('span', text.replace(/\n/g, ' '))]; } } case 'bold': { return [createElement('b', genEl(token.children))]; } case 'strike': { return [createElement('del', genEl(token.children))]; } case 'italic': { return (createElement as any)('i', { attrs: { style: 'font-style: oblique;' }, }, genEl(token.children)); } case 'big': { bigCount++; const isLong = sumTextsLength(token.children) > 10 || countNodesF(token.children) > 5; const isMany = bigCount > 3; return (createElement as any)('strong', { attrs: { style: `display: inline-block; font-size: ${ isMany ? '100%' : '150%' };` }, directives: [this.$store.state.settings.disableAnimatedMfm || isLong || isMany ? {} : { name: 'animate-css', value: { classes: 'tada', iteration: 'infinite' } }] }, genEl(token.children)); } case 'small': { return [createElement('small', genEl(token.children))]; } case 'center': { return [createElement('div', { attrs: { style: 'text-align:center;' } }, genEl(token.children))]; } case 'motion': { motionCount++; const isLong = sumTextsLength(token.children) > 10 || countNodesF(token.children) > 5; const isMany = motionCount > 3; return (createElement as any)('span', { attrs: { style: 'display: inline-block;' }, directives: [this.$store.state.settings.disableAnimatedMfm || isLong || isMany ? {} : { name: 'animate-css', value: { classes: 'rubberBand', iteration: 'infinite' } }] }, genEl(token.children)); } case 'url': { return [createElement(MkUrl, { key: Math.random(), props: { url: token.node.props.url, target: '_blank', style: 'color:var(--mfmLink);' } })]; } case 'link': { return [createElement('a', { attrs: { class: 'link', href: token.node.props.url, target: '_blank', title: token.node.props.url, style: 'color:var(--mfmLink);' } }, genEl(token.children))]; } case 'mention': { return [createElement(MkMention, { key: Math.random(), props: { host: (token.node.props.host == null && this.author && this.author.host != null ? this.author.host : token.node.props.host) || host, username: token.node.props.username } })]; } case 'hashtag': { return [createElement('router-link', { key: Math.random(), attrs: { to: `/tags/${encodeURIComponent(token.node.props.hashtag)}`, style: 'color:var(--mfmHashtag);' } }, `#${token.node.props.hashtag}`)]; } case 'blockCode': { return [createElement('pre', { class: 'code' }, [ createElement('code', { domProps: { innerHTML: syntaxHighlight(token.node.props.code) } }) ])]; } case 'inlineCode': { return [createElement('code', { domProps: { innerHTML: syntaxHighlight(token.node.props.code) } })]; } case 'quote': { if (this.shouldBreak) { return [createElement('div', { attrs: { class: 'quote' } }, genEl(token.children))]; } else { return [createElement('span', { attrs: { class: 'quote' } }, genEl(token.children))]; } } case 'title': { return [createElement('div', { attrs: { class: 'title' } }, genEl(token.children))]; } case 'emoji': { const customEmojis = (this.$root.getMetaSync() || { emojis: [] }).emojis || []; return [createElement('mk-emoji', { key: Math.random(), attrs: { emoji: token.node.props.emoji, name: token.node.props.name }, props: { customEmojis: this.customEmojis || customEmojis, normal: this.plainText } })]; } case 'math': { //const MkFormula = () => import('./formula.vue').then(m => m.default); return [createElement(MkFormula, { key: Math.random(), props: { formula: token.node.props.formula } })]; } case 'search': { //const MkGoogle = () => import('./google.vue').then(m => m.default); return [createElement(MkGoogle, { key: Math.random(), props: { q: token.node.props.query } })]; } default: { console.log('unknown ast type:', token.node.type); return []; } } })); // Parse ast to DOM return createElement('span', genEl(ast)); } });