* add CSS classes for zoom MFM * limit nesting of x2, x3, x4 MFM * simplify CSS calculation Co-authored-by: Acid Chicken (硫酸鶏) <root@acid-chicken.com> Co-authored-by: Acid Chicken (硫酸鶏) <root@acid-chicken.com>
		
			
				
	
	
		
			327 lines
		
	
	
		
			8.4 KiB
		
	
	
	
		
			TypeScript
		
	
	
	
	
	
			
		
		
	
	
			327 lines
		
	
	
		
			8.4 KiB
		
	
	
	
		
			TypeScript
		
	
	
	
	
	
import { VNode, defineComponent, h } from 'vue';
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import * as mfm from 'mfm-js';
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import MkUrl from '@/components/global/url.vue';
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import MkLink from '@/components/link.vue';
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import MkMention from '@/components/mention.vue';
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import MkEmoji from '@/components/global/emoji.vue';
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import { concat } from '@/scripts/array';
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import MkFormula from '@/components/formula.vue';
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import MkCode from '@/components/code.vue';
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import MkGoogle from '@/components/google.vue';
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import MkSparkle from '@/components/sparkle.vue';
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import MkA from '@/components/global/a.vue';
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import { host } from '@/config';
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import { MFM_TAGS } from '@/scripts/mfm-tags';
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export default defineComponent({
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	props: {
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		text: {
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			type: String,
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			required: true
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		},
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		plain: {
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			type: Boolean,
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			default: false
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		},
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		nowrap: {
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			type: Boolean,
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			default: false
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		},
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		author: {
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			type: Object,
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			default: null
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		},
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		i: {
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			type: Object,
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			default: null
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		},
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		customEmojis: {
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			required: false,
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		},
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		isNote: {
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			type: Boolean,
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			default: true
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		},
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	},
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	render() {
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		if (this.text == null || this.text === '') return;
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		const ast = (this.plain ? mfm.parsePlain : mfm.parse)(this.text, { fnNameList: MFM_TAGS });
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		const validTime = (t: string | null | undefined) => {
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			if (t == null) return null;
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			return t.match(/^[0-9.]+s$/) ? t : null;
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		};
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		const genEl = (ast: mfm.MfmNode[]) => concat(ast.map((token): VNode[] => {
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			switch (token.type) {
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				case 'text': {
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					const text = token.props.text.replace(/(\r\n|\n|\r)/g, '\n');
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					if (!this.plain) {
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						const res = [];
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						for (const t of text.split('\n')) {
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							res.push(h('br'));
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							res.push(t);
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						}
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						res.shift();
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						return res;
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					} else {
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						return [text.replace(/\n/g, ' ')];
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					}
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				}
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				case 'bold': {
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					return [h('b', genEl(token.children))];
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				}
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				case 'strike': {
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					return [h('del', genEl(token.children))];
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				}
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				case 'italic': {
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					return h('i', {
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						style: 'font-style: oblique;'
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					}, genEl(token.children));
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				}
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				case 'fn': {
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					// TODO: CSSを文字列で組み立てていくと token.props.args.~~~ 経由でCSSインジェクションできるのでよしなにやる
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					let style;
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					switch (token.props.name) {
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						case 'tada': {
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							const speed = validTime(token.props.args.speed) || '1s';
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							style = 'font-size: 150%;' + (this.$store.state.animatedMfm ? `animation: tada ${speed} linear infinite both;` : '');
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							break;
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						}
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						case 'jelly': {
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							const speed = validTime(token.props.args.speed) || '1s';
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							style = (this.$store.state.animatedMfm ? `animation: mfm-rubberBand ${speed} linear infinite both;` : '');
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							break;
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						}
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						case 'twitch': {
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							const speed = validTime(token.props.args.speed) || '0.5s';
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							style = this.$store.state.animatedMfm ? `animation: mfm-twitch ${speed} ease infinite;` : '';
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							break;
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						}
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						case 'shake': {
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							const speed = validTime(token.props.args.speed) || '0.5s';
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							style = this.$store.state.animatedMfm ? `animation: mfm-shake ${speed} ease infinite;` : '';
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							break;
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						}
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						case 'spin': {
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							const direction =
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								token.props.args.left ? 'reverse' :
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								token.props.args.alternate ? 'alternate' :
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								'normal';
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							const anime =
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								token.props.args.x ? 'mfm-spinX' :
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								token.props.args.y ? 'mfm-spinY' :
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								'mfm-spin';
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							const speed = validTime(token.props.args.speed) || '1.5s';
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							style = this.$store.state.animatedMfm ? `animation: ${anime} ${speed} linear infinite; animation-direction: ${direction};` : '';
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							break;
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						}
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						case 'jump': {
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							const speed = validTime(token.props.args.speed) || '0.75s';
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							style = this.$store.state.animatedMfm ? `animation: mfm-jump ${speed} linear infinite;` : '';
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							break;
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						}
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						case 'bounce': {
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							const speed = validTime(token.props.args.speed) || '0.75s';
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							style = this.$store.state.animatedMfm ? `animation: mfm-bounce ${speed} linear infinite; transform-origin: center bottom;` : '';
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							break;
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						}
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						case 'flip': {
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							const transform =
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								(token.props.args.h && token.props.args.v) ? 'scale(-1, -1)' :
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								token.props.args.v ? 'scaleY(-1)' :
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								'scaleX(-1)';
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							style = `transform: ${transform};`;
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							break;
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						}
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						case 'x2': {
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							return h('span', {
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								class: 'mfm-x2',
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							}, genEl(token.children));
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						}
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						case 'x3': {
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							return h('span', {
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								class: 'mfm-x3',
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							}, genEl(token.children));
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						}
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						case 'x4': {
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							return h('span', {
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								class: 'mfm-x4',
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							}, genEl(token.children));
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						}
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						case 'font': {
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							const family =
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								token.props.args.serif ? 'serif' :
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								token.props.args.monospace ? 'monospace' :
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								token.props.args.cursive ? 'cursive' :
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								token.props.args.fantasy ? 'fantasy' :
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								token.props.args.emoji ? 'emoji' :
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								token.props.args.math ? 'math' :
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								null;
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							if (family) style = `font-family: ${family};`;
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							break;
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						}
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						case 'blur': {
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							return h('span', {
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								class: '_mfm_blur_',
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							}, genEl(token.children));
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						}
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						case 'rainbow': {
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							const speed = validTime(token.props.args.speed) || '1s';
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							style = this.$store.state.animatedMfm ? `animation: mfm-rainbow ${speed} linear infinite;` : '';
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							break;
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						}
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						case 'sparkle': {
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							if (!this.$store.state.animatedMfm) {
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								return genEl(token.children);
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							}
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							return h(MkSparkle, {}, genEl(token.children));
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						}
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						case 'rotate': {
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							const degrees = parseInt(token.props.args.deg) || '90';
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							style = `transform: rotate(${degrees}deg); transform-origin: center center;`;
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							break;
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						}
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					}
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					if (style == null) {
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						return h('span', {}, ['$[', token.props.name, ' ', ...genEl(token.children), ']']);
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					} else {
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						return h('span', {
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							style: 'display: inline-block;' + style,
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						}, genEl(token.children));
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					}
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				}
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				case 'small': {
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					return [h('small', {
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						style: 'opacity: 0.7;'
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					}, genEl(token.children))];
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				}
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				case 'center': {
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					return [h('div', {
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						style: 'text-align:center;'
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					}, genEl(token.children))];
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				}
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				case 'url': {
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					return [h(MkUrl, {
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						key: Math.random(),
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						url: token.props.url,
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						rel: 'nofollow noopener',
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					})];
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				}
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				case 'link': {
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					return [h(MkLink, {
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						key: Math.random(),
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						url: token.props.url,
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						rel: 'nofollow noopener',
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					}, genEl(token.children))];
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				}
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				case 'mention': {
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					return [h(MkMention, {
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						key: Math.random(),
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						host: (token.props.host == null && this.author && this.author.host != null ? this.author.host : token.props.host) || host,
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						username: token.props.username
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					})];
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				}
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				case 'hashtag': {
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					return [h(MkA, {
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						key: Math.random(),
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						to: this.isNote ? `/tags/${encodeURIComponent(token.props.hashtag)}` : `/explore/tags/${encodeURIComponent(token.props.hashtag)}`,
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						style: 'color:var(--hashtag);'
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					}, `#${token.props.hashtag}`)];
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				}
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				case 'blockCode': {
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					return [h(MkCode, {
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						key: Math.random(),
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						code: token.props.code,
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						lang: token.props.lang,
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					})];
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				}
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				case 'inlineCode': {
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					return [h(MkCode, {
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						key: Math.random(),
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						code: token.props.code,
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						inline: true
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					})];
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				}
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				case 'quote': {
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					if (!this.nowrap) {
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						return [h('div', {
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							class: 'quote'
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						}, genEl(token.children))];
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					} else {
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						return [h('span', {
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							class: 'quote'
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						}, genEl(token.children))];
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					}
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				}
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				case 'emojiCode': {
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					return [h(MkEmoji, {
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						key: Math.random(),
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						emoji: `:${token.props.name}:`,
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						customEmojis: this.customEmojis,
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						normal: this.plain
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					})];
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				}
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				case 'unicodeEmoji': {
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					return [h(MkEmoji, {
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						key: Math.random(),
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						emoji: token.props.emoji,
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						customEmojis: this.customEmojis,
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						normal: this.plain
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					})];
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				}
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				case 'mathInline': {
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					return [h(MkFormula, {
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						key: Math.random(),
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						formula: token.props.formula,
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						block: false
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					})];
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				}
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				case 'mathBlock': {
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					return [h(MkFormula, {
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						key: Math.random(),
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						formula: token.props.formula,
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						block: true
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					})];
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				}
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				case 'search': {
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					return [h(MkGoogle, {
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						key: Math.random(),
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						q: token.props.query
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					})];
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				}
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				default: {
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					console.error('unrecognized ast type:', token.type);
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					return [];
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				}
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			}
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		}));
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		// Parse ast to DOM
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		return h('span', genEl(ast));
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	}
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});
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