mention link

src/components/mention_link/mention_link.js

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+import generateProfileLink from 'src/services/user_profile_link_generator/user_profile_link_generator'
+import { getTextColor, rgb2hex } from 'src/services/color_convert/color_convert.js'
+import { mapGetters, mapState } from 'vuex'
+import { convert } from 'chromatism'
+
+const MentionLink = {
+  name: 'MentionLink',
+  props: {
+    url: {
+      required: true,
+      type: String
+    },
+    content: {
+      required: true,
+      type: String
+    },
+    origattrs: {
+      required: true,
+      type: Object
+    }
+  },
+  methods: {
+    onClick () {
+      const link = generateProfileLink(this.user.id, this.user.screen_name)
+      this.$router.push(link)
+    }
+  },
+  computed: {
+    user () {
+      return this.$store.getters.findUserByUrl(this.url)
+    },
+    isYou () {
+      // FIXME why user !== currentUser???
+      return this.user.screen_name === this.currentUser.screen_name
+    },
+    userName () {
+      return this.userNameFullUi.split('@')[0]
+    },
+    userNameFull () {
+      return this.user.screen_name
+    },
+    userNameFullUi () {
+      return this.user.screen_name_ui
+    },
+    highlight () {
+      return this.mergedConfig.highlight[this.user.screen_name]
+    },
+    bg () {
+      if (this.highlight) return this.highlight.color
+    },
+    text () {
+      if (this.bg) {
+        const linkColor = this.mergedConfig.customTheme.colors.link
+        const color = getTextColor(convert(this.bg).rgb, convert(linkColor).rgb)
+        return rgb2hex(color)
+      }
+    },
+    style () {
+      return [
+        this.bg && `--mention-bg: ${this.bg}`,
+        this.text && `--mention-text: ${this.text}`
+      ].filter(_ => _).join('; ')
+    },
+    ...mapGetters(['mergedConfig']),
+    ...mapState({
+      currentUser: state => state.users.currentUser
+    })
+  }
+}
+
+export default MentionLink

src/components/mention_link/mention_link.scss

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+.MentionLink {
+  position: relative;
+  white-space: normal;
+  display: inline-block;
+
+  & .new,
+  & .original,
+  & .full {
+    padding: 0 2px;
+    margin: 0 -2px;
+    display: inline-block;
+    border-radius: 2px;
+  }
+
+  .original {
+    opacity: 0.5;
+  }
+
+  .full {
+    pointer-events: none;
+    position: absolute;
+    opacity: 0;
+    top: 0;
+    bottom: 0;
+    left: 0;
+    word-wrap: normal;
+    white-space: nowrap;
+    transition: opacity 0.2s ease;
+    background-color: var(--mention-bg, var(--popover));
+    color: var(--mention-text, var(--link));
+    z-index: 1;
+  }
+
+  .new {
+    background-color: var(--mention-bg);
+    color: var(--mention-text, var(--link));
+
+    &.-you {
+      & .shortName,
+      & .full {
+        font-weight: 600;
+      }
+    }
+  }
+
+  &:hover .new .full {
+    opacity: 1;
+  }
+}

src/components/mention_link/mention_link.vue

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+<template>
+  <span class="MentionLink">
+    <a v-if="!user" v-html="content" href="url" class="original"/>
+    <span v-if="user" class="new" :style="style" :class="{ '-you': isYou }" >
+      <button class="button-unstyled short" @click.prevent="onClick">
+        <span class="shortName">@<span v-html="userName" /></span> <span v-if="isYou">(You)</span>
+      </button>
+      <span class="full" v-if="userName !== userNameFull">
+        @<span v-html="userNameFull" />
+      </span>
+    </span>
+  </span>
+</template>
+
+<script src="./mention_link.js"/>
+
+<style lang="scss" src="./mention_link.scss"/>