pinafore/routes/_components/dialog/EmojiDialog.html

<ModalDialog :label :shown :closed :title background="var(--main-bg)">
  <div class="custom-emoji-container">
    {{#if emojis.length}}
      <ul class="custom-emoji-list">
        {{#each emojis as emoji}}
          <li class="custom-emoji">
            <button type="button" on:click="onClickEmoji(emoji)">
              <img src="{{$autoplayGifs ? emoji.url : emoji.static_url}}"
                   alt=":{{emoji.shortcode}}:"
                   title=":{{emoji.shortcode}}:"
              />
            </button>
          </li>
        {{/each}}
      </ul>
    {{else}}
      <div class="custom-emoji-no-emoji">No custom emoji found for this instance.</div>
    {{/if}}
  </div>
</ModalDialog>
<style>
  .custom-emoji-container {
    max-width: 100%;
    width: 400px;
    height: 300px;
    overflow: scroll;
  }
  .custom-emoji-no-emoji {
    font-size: 1.3em;
    padding: 20px;
  }
  .custom-emoji-list {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(48px, 1fr));
    grid-gap: 5px;
    padding: 20px 10px;
  }
  .custom-emoji button {
    padding: 0;
    margin: 0;
    border: none;
    cursor: pointer;
    box-shadow: none;
    background: none;
  }
  .custom-emoji img {
    width: 48px;
    height: 48px;
    object-fit: contain;
  }

</style>
<script>
  import ModalDialog from './ModalDialog.html'
  import { store } from '../../_store/store'
  import { insertEmoji } from '../../_actions/emoji'

  export default {
    components: {
      ModalDialog
    },
    store: () => store,
    computed: {
      emojis: ($currentCustomEmoji) => {
        if (!$currentCustomEmoji) {
          return []
        }
        return $currentCustomEmoji.filter(emoji => emoji.visible_in_picker)
      }
    },
    methods: {
      async show() {
        this.set({shown: true})
      },
      onClickEmoji(emoji) {
        insertEmoji(this.get('realm'), emoji)
        this.set({closed: true})
      }
    }
  }
</script>