funkwhale/front/src/components/common/UserLink.vue

<template>
  <span class="component-user-link">
    <template v-if="avatar">
      <img
        v-if="user.avatar && user.avatar.urls.medium_square_crop"
        v-lazy="$store.getters['instance/absoluteUrl'](user.avatar.urls.medium_square_crop)"
        class="ui tiny circular avatar"
        alt=""
      >
      <span
        v-else
        :style="defaultAvatarStyle"
        class="ui circular label"
      >{{ user.username[0] }}</span>
      &nbsp;
    </template>
    @{{ user.username }}
  </span>
</template>

<script>
import { hashCode, intToRGB } from '~/utils/color'

export default {
  props: {
    user: { type: Object, required: true },
    avatar: { type: Boolean, default: true }
  },
  computed: {
    userColor () {
      return intToRGB(hashCode(this.user.username + String(this.user.id)))
    },
    defaultAvatarStyle () {
      return {
        'background-color': `#${this.userColor}`
      }
    }
  }
}
</script>