misskey/src/client/components/emoji.vue

<template>
<img v-if="customEmoji" class="mk-emoji custom" :class="{ normal, noStyle }" :src="url" :alt="alt" :title="alt"/>
<img v-else-if="char && !useOsDefaultEmojis" class="mk-emoji" :src="url" :alt="alt" :title="alt"/>
<span v-else-if="char && useOsDefaultEmojis">{{ char }}</span>
<span v-else>:{{ name }}:</span>
</template>

<script lang="ts">
import Vue from 'vue';
import { getStaticImageUrl } from '../scripts/get-static-image-url';
import { twemojiSvgBase } from '../../misc/twemoji-base';

export default Vue.extend({
	props: {
		name: {
			type: String,
			required: false
		},
		emoji: {
			type: String,
			required: false
		},
		normal: {
			type: Boolean,
			required: false,
			default: false
		},
		noStyle: {
			type: Boolean,
			required: false,
			default: false
		},
		customEmojis: {
			required: false,
			default: () => []
		},
		isReaction: {
			type: Boolean,
			default: false
		},
	},

	data() {
		return {
			url: null,
			char: null,
			customEmoji: null
		}
	},

	computed: {
		alt(): string {
			return this.customEmoji ? `:${this.customEmoji.name}:` : this.char;
		},

		useOsDefaultEmojis(): boolean {
			return this.$store.state.device.useOsDefaultEmojis && !this.isReaction;
		}
	},

	watch: {
		customEmojis() {
			if (this.name) {
				const customEmoji = this.customEmojis.find(x => x.name == this.name);
				if (customEmoji) {
					this.customEmoji = customEmoji;
					this.url = this.$store.state.device.disableShowingAnimatedImages
						? getStaticImageUrl(customEmoji.url)
						: customEmoji.url;
				}
			}
		},
	},

	created() {
		if (this.name) {
			const customEmoji = this.customEmojis.find(x => x.name == this.name);
			if (customEmoji) {
				this.customEmoji = customEmoji;
				this.url = this.$store.state.device.disableShowingAnimatedImages
					? getStaticImageUrl(customEmoji.url)
					: customEmoji.url;
			} else {
				//const emoji = lib[this.name];
				//if (emoji) {
				//	this.char = emoji.char;
				//}
			}
		} else {
			this.char = this.emoji;
		}

		if (this.char) {
			let codes = Array.from(this.char).map(x => x.codePointAt(0).toString(16));
			if (!codes.includes('200d')) codes = codes.filter(x => x != 'fe0f');
			codes = codes.filter(x => x && x.length);

			this.url = `${twemojiSvgBase}/${codes.join('-')}.svg`;
		}
	},
});
</script>

<style lang="scss" scoped>
.mk-emoji {
	height: 1.25em;
	vertical-align: -0.25em;

	&.custom {
		height: 2.5em;
		vertical-align: middle;
		transition: transform 0.2s ease;

		&:hover {
			transform: scale(1.2);
		}

		&.normal {
			height: 1.25em;
			vertical-align: -0.25em;

			&:hover {
				transform: none;
			}
		}
	}

	&.noStyle {
		height: auto !important;
	}
}
</style>