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hotomoe/packages/frontend/src/components/mfm.ts
2023-01-15 07:53:15 +09:00

347 lines
9.2 KiB
TypeScript

import { VNode, defineComponent, h } from 'vue';
import * as mfm from 'mfm-js';
import MkUrl from '@/components/global/MkUrl.vue';
import MkLink from '@/components/MkLink.vue';
import MkMention from '@/components/MkMention.vue';
import MkEmoji from '@/components/global/MkEmoji.vue';
import { concat } from '@/scripts/array';
import MkCode from '@/components/MkCode.vue';
import MkGoogle from '@/components/MkGoogle.vue';
import MkSparkle from '@/components/MkSparkle.vue';
import MkA from '@/components/global/MkA.vue';
import { host } from '@/config';
import { MFM_TAGS } from '@/scripts/mfm-tags';
const QUOTE_STYLE = `
display: block;
margin: 8px;
padding: 6px 0 6px 12px;
color: var(--fg);
border-left: solid 3px var(--fg);
opacity: 0.7;
`.split('\n').join(' ');
export default defineComponent({
props: {
text: {
type: String,
required: true,
},
plain: {
type: Boolean,
default: false,
},
nowrap: {
type: Boolean,
default: false,
},
author: {
type: Object,
default: null,
},
i: {
type: Object,
default: null,
},
isNote: {
type: Boolean,
default: true,
},
},
render() {
if (this.text == null || this.text === '') return;
const ast = (this.plain ? mfm.parseSimple : mfm.parse)(this.text);
const validTime = (t: string | null | undefined) => {
if (t == null) return null;
return t.match(/^[0-9.]+s$/) ? t : null;
};
const genEl = (ast: mfm.MfmNode[]) => ast.map((token): VNode | string | (VNode | string)[] => {
switch (token.type) {
case 'text': {
const text = token.props.text.replace(/(\r\n|\n|\r)/g, '\n');
if (!this.plain) {
const res: (VNode | string)[] = [];
for (const t of text.split('\n')) {
res.push(h('br'));
res.push(t);
}
res.shift();
return res;
} else {
return [text.replace(/\n/g, ' ')];
}
}
case 'bold': {
return [h('b', genEl(token.children))];
}
case 'strike': {
return [h('del', genEl(token.children))];
}
case 'italic': {
return h('i', {
style: 'font-style: oblique;',
}, genEl(token.children));
}
case 'fn': {
// TODO: CSSを文字列で組み立てていくと token.props.args.~~~ 経由でCSSインジェクションできるのでよしなにやる
let style;
switch (token.props.name) {
case 'tada': {
const speed = validTime(token.props.args.speed) ?? '1s';
style = 'font-size: 150%;' + (this.$store.state.animatedMfm ? `animation: tada ${speed} linear infinite both;` : '');
break;
}
case 'jelly': {
const speed = validTime(token.props.args.speed) ?? '1s';
style = (this.$store.state.animatedMfm ? `animation: mfm-rubberBand ${speed} linear infinite both;` : '');
break;
}
case 'twitch': {
const speed = validTime(token.props.args.speed) ?? '0.5s';
style = this.$store.state.animatedMfm ? `animation: mfm-twitch ${speed} ease infinite;` : '';
break;
}
case 'shake': {
const speed = validTime(token.props.args.speed) ?? '0.5s';
style = this.$store.state.animatedMfm ? `animation: mfm-shake ${speed} ease infinite;` : '';
break;
}
case 'spin': {
const direction =
token.props.args.left ? 'reverse' :
token.props.args.alternate ? 'alternate' :
'normal';
const anime =
token.props.args.x ? 'mfm-spinX' :
token.props.args.y ? 'mfm-spinY' :
'mfm-spin';
const speed = validTime(token.props.args.speed) ?? '1.5s';
style = this.$store.state.animatedMfm ? `animation: ${anime} ${speed} linear infinite; animation-direction: ${direction};` : '';
break;
}
case 'jump': {
const speed = validTime(token.props.args.speed) ?? '0.75s';
style = this.$store.state.animatedMfm ? `animation: mfm-jump ${speed} linear infinite;` : '';
break;
}
case 'bounce': {
const speed = validTime(token.props.args.speed) ?? '0.75s';
style = this.$store.state.animatedMfm ? `animation: mfm-bounce ${speed} linear infinite; transform-origin: center bottom;` : '';
break;
}
case 'flip': {
const transform =
(token.props.args.h && token.props.args.v) ? 'scale(-1, -1)' :
token.props.args.v ? 'scaleY(-1)' :
'scaleX(-1)';
style = `transform: ${transform};`;
break;
}
case 'x2': {
return h('span', {
class: 'mfm-x2',
}, genEl(token.children));
}
case 'x3': {
return h('span', {
class: 'mfm-x3',
}, genEl(token.children));
}
case 'x4': {
return h('span', {
class: 'mfm-x4',
}, genEl(token.children));
}
case 'font': {
const family =
token.props.args.serif ? 'serif' :
token.props.args.monospace ? 'monospace' :
token.props.args.cursive ? 'cursive' :
token.props.args.fantasy ? 'fantasy' :
token.props.args.emoji ? 'emoji' :
token.props.args.math ? 'math' :
null;
if (family) style = `font-family: ${family};`;
break;
}
case 'blur': {
return h('span', {
class: '_mfm_blur_',
}, genEl(token.children));
}
case 'rainbow': {
const speed = validTime(token.props.args.speed) ?? '1s';
style = this.$store.state.animatedMfm ? `animation: mfm-rainbow ${speed} linear infinite;` : '';
break;
}
case 'sparkle': {
if (!this.$store.state.animatedMfm) {
return genEl(token.children);
}
return h(MkSparkle, {}, genEl(token.children));
}
case 'rotate': {
const degrees = parseInt(token.props.args.deg) ?? '90';
style = `transform: rotate(${degrees}deg); transform-origin: center center;`;
break;
}
case 'position': {
const x = parseInt(token.props.args.x ?? '0');
const y = parseInt(token.props.args.y ?? '0');
style = `transform: translateX(${x}em) translateY(${y}em);`;
break;
}
case 'fg': {
let color = token.props.args.color;
if (!/^[0-9a-f]{3,6}$/i.test(color)) color = 'f00';
style = `color: #${color};`;
break;
}
case 'bg': {
let color = token.props.args.color;
if (!/^[0-9a-f]{3,6}$/i.test(color)) color = 'f00';
style = `background-color: #${color};`;
break;
}
}
if (style == null) {
return h('span', {}, ['$[', token.props.name, ' ', ...genEl(token.children), ']']);
} else {
return h('span', {
style: 'display: inline-block; ' + style,
}, genEl(token.children));
}
}
case 'small': {
return [h('small', {
style: 'opacity: 0.7;',
}, genEl(token.children))];
}
case 'center': {
return [h('div', {
style: 'text-align:center;',
}, genEl(token.children))];
}
case 'url': {
return [h(MkUrl, {
key: Math.random(),
url: token.props.url,
rel: 'nofollow noopener',
})];
}
case 'link': {
return [h(MkLink, {
key: Math.random(),
url: token.props.url,
rel: 'nofollow noopener',
}, genEl(token.children))];
}
case 'mention': {
return [h(MkMention, {
key: Math.random(),
host: (token.props.host == null && this.author && this.author.host != null ? this.author.host : token.props.host) || host,
username: token.props.username,
})];
}
case 'hashtag': {
return [h(MkA, {
key: Math.random(),
to: this.isNote ? `/tags/${encodeURIComponent(token.props.hashtag)}` : `/explore/tags/${encodeURIComponent(token.props.hashtag)}`,
style: 'color:var(--hashtag);',
}, `#${token.props.hashtag}`)];
}
case 'blockCode': {
return [h(MkCode, {
key: Math.random(),
code: token.props.code,
lang: token.props.lang,
})];
}
case 'inlineCode': {
return [h(MkCode, {
key: Math.random(),
code: token.props.code,
inline: true,
})];
}
case 'quote': {
if (!this.nowrap) {
return [h('div', {
style: QUOTE_STYLE,
}, genEl(token.children))];
} else {
return [h('span', {
style: QUOTE_STYLE,
}, genEl(token.children))];
}
}
case 'emojiCode': {
return [h(MkEmoji, {
key: Math.random(),
emoji: `:${token.props.name}:`,
normal: this.plain,
// eslint-disable-next-line @typescript-eslint/no-unnecessary-condition
host: this.author?.host,
})];
}
case 'unicodeEmoji': {
return [h(MkEmoji, {
key: Math.random(),
emoji: token.props.emoji,
normal: this.plain,
})];
}
case 'mathInline': {
return [h('code', token.props.formula)];
}
case 'mathBlock': {
return [h('code', token.props.formula)];
}
case 'search': {
return [h(MkGoogle, {
key: Math.random(),
q: token.props.query,
})];
}
case 'plain': {
return [h('span', genEl(token.children))];
}
default: {
// eslint-disable-next-line @typescript-eslint/no-explicit-any
console.error('unrecognized ast type:', (token as any).type);
return [];
}
}
}).flat(Infinity) as (VNode | string)[];
// Parse ast to DOM
return h('span', genEl(ast));
},
});