remove curr and previous states - extract tasks logic to tasks action

app/assets/javascripts/issue_show/actions/tasks.js

+export default (apiData, tasks) => {
+  const $tasks = $('#task_status');
+  const $tasksShort = $('#task_status_short');
+  const $issueableHeader = $('.issuable-header');
+  const zeroData = { api: null, tasks: null };
+
+  if ($tasks.length === 0) {
+    if (!(apiData.task_status.indexOf('0 of 0') >= 0)) {
+      $issueableHeader.append(`<span id="task_status">${apiData.task_status}</span>`);
+    } else {
+      $issueableHeader.append('<span id="task_status"></span>');
+    }
+  } else {
+    zeroData.api = apiData.task_status.indexOf('0 of 0') >= 0;
+    zeroData.tasks = tasks.indexOf('0 of 0') >= 0;
+  }
+
+  if ($tasks && !zeroData.api) {
+    $tasks.text(apiData.task_status);
+    $tasksShort.text(apiData.task_status);
+  } else if (zeroData.tasks) {
+    $issueableHeader.append(`<span id="task_status">${apiData.task_status}</span>`);
+  } else if (zeroData.api) {
+    $tasks.remove();
+    $tasksShort.remove();
+  }
+};

app/assets/javascripts/issue_show/issue_title_description.vue

@@ -2,6 +2,7 @@
 import Visibility from 'visibilityjs';
 import Poll from './../lib/utils/poll';
 import Service from './services/index';
+import tasks from './actions/tasks';
 
 export default {
   props: {
@@ -30,14 +31,13 @@ export default {
     return {
       poll,
       apiData: {},
-      current: true,
       timeoutId: null,
       title: '<span></span>',
       titleText: '',
       description: '<span></span>',
       descriptionText: '',
       descriptionChange: false,
-      previousDescription: null,
+      tasks: '0 of 0',
     };
   },
   methods: {
@@ -46,18 +46,7 @@ export default {
       this.triggerAnimation();
     },
     updateTaskHTML() {
-      const tasks = document.querySelector('#task_status_short');
-      const zeroTasks = this.apiData.task_status.indexOf('0 of 0') >= 0;
-
-      if (tasks && !zeroTasks) {
-        tasks.innerText = this.apiData.task_status;
-      } else if (!tasks && !zeroTasks) {
-        $('.issuable-header').append(`
-          <span id="task_status_short" class="hidden-md hidden-lg">${this.apiData.task_status}</span>
-        `);
-      } else if (zeroTasks) {
-        $('#task_status_short').remove();
-      }
+      tasks(this.apiData, this.tasks);
     },
     elementsToVisualize(noTitleChange, noDescriptionChange) {
       const elementStack = [];
@@ -71,11 +60,7 @@ export default {
         // only change to true when we need to bind TaskLists the html of description
         this.descriptionChange = true;
         this.updateTaskHTML();
-
-        if (this.description !== '<span></span>') {
-          this.previousDescription = this.description;
-        }
-
+        this.tasks = this.apiData.task_status;
         elementStack.push(this.$el.querySelector('.wiki'));
       }
 
@@ -129,24 +114,18 @@ export default {
 
       this.animate(title, description, elementsToVisualize);
     },
-    handleCurrentOrPrevious() {
-      this.descriptionChange = true;
-      this.current = !this.current;
+    updateEditedTimeAgo() {
+      const toolTipTime = gl.utils.formatDate(this.apiData.updated_at);
+      const $timeAgoNode = $('.issue_edited_ago');
+
+      $timeAgoNode.attr('datetime', this.apiData.updated_at);
+      $timeAgoNode.attr('data-original-title', toolTipTime);
     },
   },
   computed: {
     descriptionClass() {
       return `description ${this.candescription} is-task-list-enabled`;
     },
-    showDescription() {
-      return this.current ? this.description : this.previousDescription;
-    },
-    previousOrCurrentButtonText() {
-      return this.current ? '<< Show Previous Decription' : 'Show Current Description >>';
-    },
-    prevCurrBtnClass() {
-      return this.current ? 'btn btn-sm btn-default' : 'btn btn-sm btn-primary';
-    },
   },
   created() {
     if (!Visibility.hidden()) {
@@ -164,18 +143,19 @@ export default {
   updated() {
     // if new html is injected (description changed) - bind TaskList and call renderGFM
     if (this.descriptionChange) {
+      this.updateEditedTimeAgo();
+
       $(this.$refs['issue-content-container-gfm-entry']).renderGFM();
 
-      if (this.current) {
       const tl = new gl.TaskList({
         dataType: 'issue',
         fieldName: 'description',
         selector: '.detail-page-description',
       });
 
-        return tl;
-      }
+      return tl && null;
     }
+
     return null;
   },
 };
@@ -188,17 +168,9 @@ export default {
       :class="descriptionClass"
       v-if="description"
     >
-      <div v-if="previousDescription">
-        <button
-          :class="prevCurrBtnClass"
-          @click="handleCurrentOrPrevious"
-        >
-          {{ previousOrCurrentButtonText }}
-        </button>
-      </div><br>
       <div
         class="wiki issue-realtime-trigger-pulse"
-        v-html="showDescription"
+        v-html="description"
         ref="issue-content-container-gfm-entry"
       >
       </div>

app/controllers/projects/issues_controller.rb

@@ -206,6 +206,7 @@ class Projects::IssuesController < Projects::ApplicationController
       description_text: @issue.description,
       task_status: @issue.task_status,
       issue_number: @issue.iid,
+      updated_at: @issue.updated_at,
     }
   end
 

app/views/projects/issues/_issue.html.haml

@@ -37,10 +37,6 @@
            
           - issue.labels.each do |label|
             = link_to_label(label, subject: issue.project, css_class: 'label-link')
-        - if issue.tasks?
-           
-          %span.task-status
-            = issue.task_status
 
         .pull-right.issue-updated-at
           %span updated #{time_ago_with_tooltip(issue.updated_at, placement: 'bottom', html_class: 'issue_update_ago')}