1 files changed, 105 insertions, 0 deletions
diff --git a/app/assets/javascripts/diffs/components/diff_gutter_avatars.vue b/app/assets/javascripts/diffs/components/diff_gutter_avatars.vue
new file mode 100644
index 00000000000..3193b18becb
--- /dev/null
+++ b/app/assets/javascripts/diffs/components/diff_gutter_avatars.vue
@@ -0,0 +1,105 @@
+<script>
+import { mapActions } from 'vuex';
+import Icon from '~/vue_shared/components/icon.vue';
+import tooltip from '~/vue_shared/directives/tooltip';
+import { pluralize, truncate } from '~/lib/utils/text_utility';
+import UserAvatarImage from '~/vue_shared/components/user_avatar/user_avatar_image.vue';
+import { COUNT_OF_AVATARS_IN_GUTTER, LENGTH_OF_AVATAR_TOOLTIP } from '../constants';
+
+export default {
+  directives: {
+    tooltip,
+  },
+  components: {
+    Icon,
+    UserAvatarImage,
+  },
+  props: {
+    discussions: {
+      type: Array,
+      required: true,
+    },
+  },
+  computed: {
+    discussionsExpanded() {
+      return this.discussions.every(discussion => discussion.expanded);
+    },
+    allDiscussions() {
+      return this.discussions.reduce((acc, note) => acc.concat(note.notes), []);
+    },
+    notesInGutter() {
+      return this.allDiscussions.slice(0, COUNT_OF_AVATARS_IN_GUTTER).map(n => ({
+        note: n.note,
+        author: n.author,
+      }));
+    },
+    moreCount() {
+      return this.allDiscussions.length - this.notesInGutter.length;
+    },
+    moreText() {
+      if (this.moreCount === 0) {
+        return '';
+      }
+
+      return pluralize(`${this.moreCount} more comment`, this.moreCount);
+    },
+  },
+  methods: {
+    ...mapActions(['toggleDiscussion']),
+    getTooltipText(noteData) {
+      let note = noteData.note;
+
+      if (note.length > LENGTH_OF_AVATAR_TOOLTIP) {
+        note = truncate(note, LENGTH_OF_AVATAR_TOOLTIP);
+      }
+
+      return `${noteData.author.name}: ${note}`;
+    },
+    toggleDiscussions() {
+      this.discussions.forEach(discussion => {
+        this.toggleDiscussion({
+          discussionId: discussion.id,
+        });
+      });
+    },
+  },
+};
+</script>
+
+<template>
+  <div class="diff-comment-avatar-holders">
+    <button
+      v-if="discussionsExpanded"
+      type="button"
+      aria-label="Show comments"
+      class="diff-notes-collapse js-diff-comment-avatar js-diff-comment-button"
+      @click="toggleDiscussions"
+    >
+      <icon
+        :size="12"
+        name="collapse"
+      />
+    </button>
+    <template v-else>
+      <user-avatar-image
+        v-for="note in notesInGutter"
+        :key="note.id"
+        :img-src="note.author.avatar_url"
+        :tooltip-text="getTooltipText(note)"
+        :size="19"
+        class="diff-comment-avatar js-diff-comment-avatar"
+        @click.native="toggleDiscussions"
+      />
+      <span
+        v-tooltip
+        v-if="moreText"
+        :title="moreText"
+        class="diff-comments-more-count has-tooltip js-diff-comment-avatar js-diff-comment-plus"
+        data-container="body"
+        data-placement="top"
+        role="button"
+        @click="toggleDiscussions"
+      >+{{ moreCount }}</span>
+    </template>
+  </div>
+</template>