1 files changed, 162 insertions, 0 deletions
diff --git a/app/assets/javascripts/diff_notes/components/diff_note_avatars.js b/app/assets/javascripts/diff_notes/components/diff_note_avatars.js
new file mode 100644
index 00000000000..c37249c060a
--- /dev/null
+++ b/app/assets/javascripts/diff_notes/components/diff_note_avatars.js
@@ -0,0 +1,162 @@
+/* global CommentsStore */
+/* global notes */
+
+import Vue from 'vue';
+import collapseIcon from '../icons/collapse_icon.svg';
+import userAvatarImage from '../../vue_shared/components/user_avatar/user_avatar_image.vue';
+
+const DiffNoteAvatars = Vue.extend({
+  props: ['discussionId'],
+  data() {
+    return {
+      isVisible: false,
+      lineType: '',
+      storeState: CommentsStore.state,
+      shownAvatars: 3,
+      collapseIcon,
+    };
+  },
+  components: {
+    userAvatarImage,
+  },
+  template: `
+    <div class="diff-comment-avatar-holders"
+      v-show="notesCount !== 0">
+      <div v-if="!isVisible">
+        <!-- FIXME: Pass an alt attribute here for accessibility -->
+        <user-avatar-image
+          v-for="note in notesSubset"
+          class="diff-comment-avatar js-diff-comment-avatar"
+          @click.native="clickedAvatar($event)"
+          :img-src="note.authorAvatar"
+          :tooltip-text="getTooltipText(note)"
+          :data-line-type="lineType"
+          :size="19"
+          data-html="true"
+        />
+        <span v-if="notesCount > shownAvatars"
+          class="diff-comments-more-count has-tooltip js-diff-comment-avatar"
+          data-container="body"
+          data-placement="top"
+          ref="extraComments"
+          role="button"
+          :data-line-type="lineType"
+          :title="extraNotesTitle"
+          @click="clickedAvatar($event)">{{ moreText }}</span>
+      </div>
+      <button class="diff-notes-collapse js-diff-comment-avatar"
+        type="button"
+        aria-label="Show comments"
+        :data-line-type="lineType"
+        @click="clickedAvatar($event)"
+        v-if="isVisible"
+        v-html="collapseIcon">
+      </button>
+    </div>
+  `,
+  mounted() {
+    this.$nextTick(() => {
+      this.addNoCommentClass();
+      this.setDiscussionVisible();
+
+      this.lineType = $(this.$el).closest('.diff-line-num').hasClass('old_line') ? 'old' : 'new';
+    });
+
+    $(document).on('toggle.comments', () => {
+      this.$nextTick(() => {
+        this.setDiscussionVisible();
+      });
+    });
+  },
+  destroyed() {
+    $(document).off('toggle.comments');
+  },
+  watch: {
+    storeState: {
+      handler() {
+        this.$nextTick(() => {
+          $('.has-tooltip', this.$el).tooltip('fixTitle');
+
+          // We need to add/remove a class to an element that is outside the Vue instance
+          this.addNoCommentClass();
+        });
+      },
+      deep: true,
+    },
+  },
+  computed: {
+    notesSubset() {
+      let notes = [];
+
+      if (this.discussion) {
+        notes = Object.keys(this.discussion.notes)
+          .slice(0, this.shownAvatars)
+          .map(noteId => this.discussion.notes[noteId]);
+      }
+
+      return notes;
+    },
+    extraNotesTitle() {
+      if (this.discussion) {
+        const extra = this.discussion.notesCount() - this.shownAvatars;
+
+        return `${extra} more comment${extra > 1 ? 's' : ''}`;
+      }
+
+      return '';
+    },
+    discussion() {
+      return this.storeState[this.discussionId];
+    },
+    notesCount() {
+      if (this.discussion) {
+        return this.discussion.notesCount();
+      }
+
+      return 0;
+    },
+    moreText() {
+      const plusSign = this.notesCount < 100 ? '+' : '';
+
+      return `${plusSign}${this.notesCount - this.shownAvatars}`;
+    },
+  },
+  methods: {
+    clickedAvatar(e) {
+      notes.onAddDiffNote(e);
+
+      // Toggle the active state of the toggle all button
+      this.toggleDiscussionsToggleState();
+
+      this.$nextTick(() => {
+        this.setDiscussionVisible();
+
+        $('.has-tooltip', this.$el).tooltip('fixTitle');
+        $('.has-tooltip', this.$el).tooltip('hide');
+      });
+    },
+    addNoCommentClass() {
+      const notesCount = this.notesCount;
+
+      $(this.$el).closest('.js-avatar-container')
+        .toggleClass('no-comment-btn', notesCount > 0)
+        .nextUntil('.js-avatar-container')
+        .toggleClass('no-comment-btn', notesCount > 0);
+    },
+    toggleDiscussionsToggleState() {
+      const $notesHolders = $(this.$el).closest('.code').find('.notes_holder');
+      const $visibleNotesHolders = $notesHolders.filter(':visible');
+      const $toggleDiffCommentsBtn = $(this.$el).closest('.diff-file').find('.js-toggle-diff-comments');
+
+      $toggleDiffCommentsBtn.toggleClass('active', $notesHolders.length === $visibleNotesHolders.length);
+    },
+    setDiscussionVisible() {
+      this.isVisible = $(`.diffs .notes[data-discussion-id="${this.discussion.id}"]`).is(':visible');
+    },
+    getTooltipText(note) {
+      return `${note.authorName}: ${note.noteTruncated}`;
+    },
+  },
+});
+
+Vue.component('diff-note-avatars', DiffNoteAvatars);