Port of focus reply field when replying to comment

CE MR https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/24867

app/assets/javascripts/notes/components/note_actions.vue

@@ -25,11 +25,6 @@ export default {
       type: [String, Number],
       required: true,
     },
-    discussionId: {
-      type: String,
-      required: false,
-      default: '',
-    },
     noteUrl: {
       type: String,
       required: false,
@@ -181,7 +176,7 @@ export default {
       v-if="showReplyButton"
       ref="replyButton"
       class="js-reply-button"
-      :note-id="discussionId"
+      @startReplying="$emit('startReplying')"
     />
     <div v-if="canEdit" class="note-actions-item">
       <button

app/assets/javascripts/notes/components/note_actions/reply_button.vue

 <script>
-import { mapActions } from 'vuex';
 import { GlTooltipDirective, GlButton } from '@gitlab/ui';
 import Icon from '~/vue_shared/components/icon.vue';
 
@@ -12,15 +11,6 @@ export default {
   directives: {
     GlTooltip: GlTooltipDirective,
   },
-  props: {
-    noteId: {
-      type: String,
-      required: true,
-    },
-  },
-  methods: {
-    ...mapActions(['convertToDiscussion']),
-  },
 };
 </script>
 
@@ -32,7 +22,7 @@ export default {
       class="note-action-button"
       variant="transparent"
       :title="__('Reply to comment')"
-      @click="convertToDiscussion(noteId)"
+      @click="$emit('startReplying')"
     >
       <icon name="comment" css-classes="link-highlight" />
     </gl-button>

app/assets/javascripts/notes/components/noteable_discussion.vue

@@ -28,6 +28,7 @@ import resolvable from '../mixins/resolvable';
 import discussionNavigation from '../mixins/discussion_navigation';
 import ReplyPlaceholder from './discussion_reply_placeholder.vue';
 import jumpToNextDiscussionButton from './discussion_jump_to_next_button.vue';
+import eventHub from '../event_hub';
 
 export default {
   name: 'NoteableDiscussion',
@@ -256,6 +257,12 @@ export default {
       }
     },
   },
+  created() {
+    eventHub.$on('startReplying', this.onStartReplying);
+  },
+  beforeDestroy() {
+    eventHub.$off('startReplying', this.onStartReplying);
+  },
   methods: {
     ...mapActions([
       'saveNote',
@@ -355,6 +362,11 @@ Please check your network connection and try again.`;
     deleteNoteHandler(note) {
       this.$emit('noteDeleted', this.discussion, note);
     },
+    onStartReplying(discussionId) {
+      if (this.discussion.id === discussionId) {
+        this.showReplyForm();
+      }
+    },
   },
 };
 </script>
@@ -417,6 +429,7 @@ Please check your network connection and try again.`;
                     :help-page-path="helpPagePath"
                     :show-reply-button="canReply"
                     @handleDeleteNote="deleteNoteHandler"
+                    @startReplying="showReplyForm"
                   >
                     <note-edited-text
                       v-if="discussion.resolved"

app/assets/javascripts/notes/components/noteable_note.vue

@@ -29,11 +29,6 @@ export default {
       type: Object,
       required: true,
     },
-    discussion: {
-      type: Object,
-      required: false,
-      default: null,
-    },
     line: {
       type: Object,
       required: false,
@@ -49,6 +44,11 @@ export default {
       required: false,
       default: () => null,
     },
+    showReplyButton: {
+      type: Boolean,
+      required: false,
+      default: false,
+    },
   },
   data() {
     return {
@@ -91,13 +91,6 @@ export default {
       }
       return '';
     },
-    showReplyButton() {
-      if (!this.discussion || !this.getNoteableData.current_user.can_create_note) {
-        return false;
-      }
-
-      return this.discussion.individual_note && !this.commentsDisabled;
-    },
     actionText() {
       if (!this.commit) {
         return '';
@@ -273,6 +266,7 @@ export default {
           @handleEdit="editHandler"
           @handleDelete="deleteHandler"
           @handleResolve="resolveHandler"
+          @startReplying="$emit('startReplying')"
         />
       </div>
       <div class="timeline-discussion-body">

app/assets/javascripts/notes/components/notes_app.vue

@@ -64,6 +64,7 @@ export default {
       'getNotesDataByProp',
       'isLoading',
       'commentsDisabled',
+      'getNoteableData',
     ]),
     noteableType() {
       return this.noteableData.noteableType;
@@ -79,6 +80,9 @@ export default {
 
       return this.discussions;
     },
+    canReply() {
+      return this.getNoteableData.current_user.can_create_note && !this.commentsDisabled;
+    },
   },
   watch: {
     shouldShow() {
@@ -129,6 +133,7 @@ export default {
       'setNotesFetchedState',
       'expandDiscussion',
       'startTaskList',
+      'convertToDiscussion',
     ]),
     fetchNotes() {
       if (this.isFetching) return null;
@@ -176,6 +181,11 @@ export default {
         }
       }
     },
+    startReplying(discussionId) {
+      return this.convertToDiscussion(discussionId)
+        .then(() => this.$nextTick())
+        .then(() => eventHub.$emit('startReplying', discussionId));
+    },
   },
   systemNote: constants.SYSTEM_NOTE,
 };
@@ -206,7 +216,8 @@ export default {
             v-else
             :key="discussion.id"
             :note="discussion.notes[0]"
-            :discussion="discussion"
+            :show-reply-button="canReply"
+            @startReplying="startReplying(discussion.id)"
           />
         </template>
         <noteable-discussion

spec/javascripts/notes/components/note_actions/reply_button_spec.js

@@ -3,27 +3,14 @@ import { createLocalVue, mount } from '@vue/test-utils';
 import ReplyButton from '~/notes/components/note_actions/reply_button.vue';
 
 describe('ReplyButton', () => {
-  const noteId = 'dummy-note-id';
-
   let wrapper;
-  let convertToDiscussion;
 
   beforeEach(() => {
     const localVue = createLocalVue();
-    convertToDiscussion = jasmine.createSpy('convertToDiscussion');
 
     localVue.use(Vuex);
-    const store = new Vuex.Store({
-      actions: {
-        convertToDiscussion,
-      },
-    });
 
     wrapper = mount(ReplyButton, {
-      propsData: {
-        noteId,
-      },
-      store,
       sync: false,
       localVue,
     });
@@ -33,14 +20,13 @@ describe('ReplyButton', () => {
     wrapper.destroy();
   });
 
-  it('dispatches convertToDiscussion with note ID on click', () => {
+  it('emits startReplying on click', () => {
     const button = wrapper.find({ ref: 'button' });
 
     button.trigger('click');
 
-    expect(convertToDiscussion).toHaveBeenCalledTimes(1);
-    const [, payload] = convertToDiscussion.calls.argsFor(0);
-
-    expect(payload).toBe(noteId);
+    expect(wrapper.emitted()).toEqual({
+      startReplying: [[]],
+    });
   });
 });