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path: root/app/assets/javascripts/mr_notes/init_notes.js
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import $ from 'jquery';
import Vue from 'vue';
import { mapActions, mapState, mapGetters } from 'vuex';
import store from '~/mr_notes/stores';
import notesApp from '../notes/components/notes_app.vue';
import discussionNavigator from '../notes/components/discussion_navigator.vue';
import initWidget from '../vue_merge_request_widget';
import { parseBoolean } from '~/lib/utils/common_utils';

export default () => {
  // eslint-disable-next-line no-new
  new Vue({
    el: '#js-vue-mr-discussions',
    name: 'MergeRequestDiscussions',
    components: {
      notesApp,
    },
    store,
    data() {
      const notesDataset = document.getElementById('js-vue-mr-discussions').dataset;
      const noteableData = JSON.parse(notesDataset.noteableData);
      noteableData.noteableType = notesDataset.noteableType;
      noteableData.targetType = notesDataset.targetType;
      noteableData.discussion_locked = parseBoolean(notesDataset.isLocked);

      return {
        noteableData,
        currentUserData: JSON.parse(notesDataset.currentUserData),
        notesData: JSON.parse(notesDataset.notesData),
        helpPagePath: notesDataset.helpPagePath,
      };
    },
    computed: {
      ...mapGetters(['discussionTabCounter']),
      ...mapState({
        activeTab: state => state.page.activeTab,
      }),
      isShowTabActive() {
        return this.activeTab === 'show';
      },
    },
    watch: {
      discussionTabCounter() {
        this.updateDiscussionTabCounter();
      },
      isShowTabActive: {
        handler(newVal) {
          if (newVal) {
            initWidget();
          }
        },
        immediate: true,
      },
    },
    created() {
      this.setActiveTab(window.mrTabs.getCurrentAction());
    },
    mounted() {
      this.notesCountBadge = $('.issuable-details').find('.notes-tab .badge');
      $(document).on('visibilitychange', this.updateDiscussionTabCounter);
      window.mrTabs.eventHub.$on('MergeRequestTabChange', this.setActiveTab);
    },
    beforeDestroy() {
      $(document).off('visibilitychange', this.updateDiscussionTabCounter);
      window.mrTabs.eventHub.$off('MergeRequestTabChange', this.setActiveTab);
    },
    methods: {
      ...mapActions(['setActiveTab']),
      updateDiscussionTabCounter() {
        this.notesCountBadge.text(this.discussionTabCounter);
      },
    },
    render(createElement) {
      // NOTE: Even though `discussionNavigator` is added to the `notes-app`,
      // it adds a global key listener so it works on the diffs tab as well.
      // If we create a single Vue app for all of the MR tabs, we should move this
      // up the tree, to the root.
      return createElement(discussionNavigator, [
        createElement('notes-app', {
          props: {
            noteableData: this.noteableData,
            notesData: this.notesData,
            userData: this.currentUserData,
            shouldShow: this.isShowTabActive,
            helpPagePath: this.helpPagePath,
          },
        }),
      ]);
    },
  });
};