misskey/src/client/components/mfm.ts

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import Vue, { VNode } from 'vue';
import { MfmForest } from '../../mfm/types';
import { parse, parsePlain } from '../../mfm/parse';
import MkUrl from './url.vue';
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import MkLink from './link.vue';
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import MkMention from './mention.vue';
import { concat } from '../../prelude/array';
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import MkFormula from './formula.vue';
import MkCode from './code.vue';
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import MkGoogle from './google.vue';
import { host } from '../config';
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export default Vue.component('misskey-flavored-markdown', {
props: {
text: {
type: String,
required: true
},
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plain: {
type: Boolean,
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default: false
},
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nowrap: {
type: Boolean,
default: false
},
author: {
type: Object,
default: null
},
i: {
type: Object,
default: null
},
customEmojis: {
required: false,
},
isNote: {
type: Boolean,
default: true
},
},
render(createElement) {
if (this.text == null || this.text == '') return;
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const ast = (this.plain ? parsePlain : parse)(this.text);
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');
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if (!this.plain) {
const x = text.split('\n')
.map(t => t == '' ? [createElement('br')] : [createElement('span', t), createElement('br')]);
x[x.length - 1].pop();
return x;
} else {
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return [createElement('span', text.replace(/\n/g, ' '))];
}
}
case 'bold': {
return [createElement('b', genEl(token.children))];
}
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case 'strike': {
return [createElement('del', genEl(token.children))];
}
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case 'italic': {
return (createElement as any)('i', {
attrs: {
style: 'font-style: oblique;'
},
}, genEl(token.children));
}
case 'big': {
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return (createElement as any)('strong', {
attrs: {
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style: `display: inline-block; font-size: 150%;`
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},
directives: [this.$store.state.settings.disableAnimatedMfm ? {} : {
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name: 'animate-css',
value: { classes: 'tada', iteration: 'infinite' }
}]
}, genEl(token.children));
}
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case 'small': {
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return [createElement('small', {
attrs: {
style: 'opacity: 0.7;'
},
}, genEl(token.children))];
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}
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case 'center': {
return [createElement('div', {
attrs: {
style: 'text-align:center;'
}
}, genEl(token.children))];
}
case 'motion': {
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return (createElement as any)('span', {
attrs: {
style: 'display: inline-block;'
},
directives: [this.$store.state.settings.disableAnimatedMfm ? {} : {
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name: 'animate-css',
value: { classes: 'rubberBand', iteration: 'infinite' }
}]
}, genEl(token.children));
}
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case 'spin': {
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const direction =
token.node.props.attr == 'left' ? 'reverse' :
token.node.props.attr == 'alternate' ? 'alternate' :
'normal';
const style = (this.$store.state.settings.disableAnimatedMfm)
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? ''
: `animation: spin 1.5s linear infinite; animation-direction: ${direction};`;
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return (createElement as any)('span', {
attrs: {
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style: 'display: inline-block;' + style
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},
}, genEl(token.children));
}
case 'jump': {
return (createElement as any)('span', {
attrs: {
style: (this.$store.state.settings.disableAnimatedMfm) ? 'display: inline-block;' : 'display: inline-block; animation: jump 0.75s linear infinite;'
},
}, genEl(token.children));
}
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case 'flip': {
return (createElement as any)('span', {
attrs: {
style: 'display: inline-block; transform: scaleX(-1);'
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},
}, genEl(token.children));
}
case 'url': {
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return [createElement(MkUrl, {
key: Math.random(),
props: {
url: token.node.props.url,
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rel: 'nofollow noopener',
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},
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})];
}
case 'link': {
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return [createElement(MkLink, {
key: Math.random(),
props: {
url: token.node.props.url,
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rel: 'nofollow noopener',
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},
}, genEl(token.children))];
}
case 'mention': {
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return [createElement(MkMention, {
key: Math.random(),
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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
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}
})];
}
case 'hashtag': {
return [createElement('router-link', {
key: Math.random(),
attrs: {
to: this.isNote ? `/tags/${encodeURIComponent(token.node.props.hashtag)}` : `/explore/tags/${encodeURIComponent(token.node.props.hashtag)}`,
style: 'color:var(--hashtag);'
}
}, `#${token.node.props.hashtag}`)];
}
case 'blockCode': {
return [createElement(MkCode, {
key: Math.random(),
props: {
code: token.node.props.code,
lang: token.node.props.lang,
}
})];
}
case 'inlineCode': {
return [createElement(MkCode, {
key: Math.random(),
props: {
code: token.node.props.code,
lang: token.node.props.lang,
inline: true
}
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})];
}
case 'quote': {
if (this.shouldBreak) {
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return [createElement('div', {
attrs: {
class: 'quote'
}
}, genEl(token.children))];
} else {
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return [createElement('span', {
attrs: {
class: 'quote'
}
}, genEl(token.children))];
}
}
case 'title': {
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return [createElement('div', {
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attrs: {
class: 'title'
}
}, genEl(token.children))];
}
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case 'emoji': {
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const customEmojis = (this.$root.getMetaSync() || { emojis: [] }).emojis || [];
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return [createElement('mk-emoji', {
key: Math.random(),
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attrs: {
emoji: token.node.props.emoji,
name: token.node.props.name
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},
props: {
customEmojis: this.customEmojis || customEmojis,
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normal: this.plain
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}
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})];
}
case 'mathInline': {
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//const MkFormula = () => import('./formula.vue').then(m => m.default);
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return [createElement(MkFormula, {
key: Math.random(),
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props: {
formula: token.node.props.formula,
block: false
}
})];
}
case 'mathBlock': {
//const MkFormula = () => import('./formula.vue').then(m => m.default);
return [createElement(MkFormula, {
key: Math.random(),
props: {
formula: token.node.props.formula,
block: true
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}
})];
}
case 'search': {
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//const MkGoogle = () => import('./google.vue').then(m => m.default);
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return [createElement(MkGoogle, {
key: Math.random(),
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props: {
q: token.node.props.query
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}
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})];
}
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default: {
console.log('unknown ast type:', token.node.type);
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return [];
}
}
}));
// Parse ast to DOM
return createElement('span', genEl(ast));
}
});