feat: A prototype of dynamically loading themes

.env

@@ -15,11 +15,9 @@ LOGO_WHITE_URL=''
 FAVICON_URL=''
 MARKETING_SITE_BASE_URL=''
 ORDER_HISTORY_URL=''
+POST_MARK_AS_READ_DELAY=2000
 REFRESH_ACCESS_TOKEN_ENDPOINT=''
 SEGMENT_KEY=''
 SITE_NAME=''
 USER_INFO_COOKIE_NAME=''
-SUPPORT_URL=''
+THEME_LOADER_URL=''
-TA_FEEDBACK_FORM= ''
-STAFF_FEEDBACK_FORM= ''
-DISPLAY_FEEDBACK_BANNER='false'

.env.development

@@ -16,11 +16,9 @@ LOGO_WHITE_URL=https://edx-cdn.org/v3/default/logo-white.svg
 FAVICON_URL=https://edx-cdn.org/v3/default/favicon.ico
 MARKETING_SITE_BASE_URL='http://localhost:18000'
 ORDER_HISTORY_URL='http://localhost:1996/orders'
+POST_MARK_AS_READ_DELAY=2000
 REFRESH_ACCESS_TOKEN_ENDPOINT='http://localhost:18000/login_refresh'
 SEGMENT_KEY=''
 SITE_NAME=localhost
 USER_INFO_COOKIE_NAME='edx-user-info'
-SUPPORT_URL='https://support.edx.org'
+THEME_LOADER_URL='https://xitij2000.github.io/frontend-theme-prototype/themes.js'
-TA_FEEDBACK_FORM='https://learner-form.test'
-STAFF_FEEDBACK_FORM='https://staff-form.test'
-DISPLAY_FEEDBACK_BANNER='false'

.env.test

@@ -8,17 +8,14 @@ LMS_BASE_URL='http://localhost:18000'
 LEARNING_BASE_URL='http://localhost:2000'
 LOGIN_URL='http://localhost:18000/login'
 LOGOUT_URL='http://localhost:18000/logout'
-LOGO_URL='https://edx-cdn.org/v3/default/logo.svg'
+LOGO_URL=https://edx-cdn.org/v3/default/logo.svg
-LOGO_TRADEMARK_URL='https://edx-cdn.org/v3/default/logo-trademark.svg'
+LOGO_TRADEMARK_URL=https://edx-cdn.org/v3/default/logo-trademark.svg
-LOGO_WHITE_URL='https://edx-cdn.org/v3/default/logo-white.svg'
+LOGO_WHITE_URL=https://edx-cdn.org/v3/default/logo-white.svg
-FAVICON_URL='https://edx-cdn.org/v3/default/favicon.ico'
+FAVICON_URL=https://edx-cdn.org/v3/default/favicon.ico
 MARKETING_SITE_BASE_URL='http://localhost:18000'
 ORDER_HISTORY_URL='http://localhost:1996/orders'
+POST_MARK_AS_READ_DELAY=2000
 REFRESH_ACCESS_TOKEN_ENDPOINT='http://localhost:18000/login_refresh'
 SEGMENT_KEY=''
-SITE_NAME='localhost'
+SITE_NAME=localhost
 USER_INFO_COOKIE_NAME='edx-user-info'
-SUPPORT_URL='https://support.edx.org'
-TA_FEEDBACK_FORM='https://learner-form.test'
-STAFF_FEEDBACK_FORM='https://staff-form.test'
-DISPLAY_FEEDBACK_BANNER='false'

.eslintrc.js

@@ -5,9 +5,6 @@ module.exports = createConfig('eslint',
   "plugins": ["simple-import-sort"],
     "rules": {
       'import/no-extraneous-dependencies': 'off',
-      'react-hooks/exhaustive-deps': 'off',
-      'jsx-a11y/no-noninteractive-element-interactions': 'off',
-      'jsx-a11y/no-access-key': 'off',
       'simple-import-sort/imports': [
         'error', {
           groups: [

.github/workflows/ci.yml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node: [16]
+        node: [12, 14, 16]
     steps:
     - name: Checkout
       uses: actions/checkout@v2

.github/workflows/commitlint.yml

@@ -7,4 +7,4 @@ on:
 
 jobs:
   commitlint:
-    uses: openedx/.github/.github/workflows/commitlint.yml@master
+    uses: edx/.github/.github/workflows/commitlint.yml@master

.github/workflows/lockfileversion-check.yml

@@ -1,13 +0,0 @@
-#check package-lock file version
-
-name: Lockfile Version check
-
-on:
-  push:
-    branches:
-    - master
-  pull_request:
-
-jobs:
-  version-check:
-    uses: openedx/.github/.github/workflows/lockfileversion-check.yml@master

.jest/setEnvVars.js

@@ -1,2 +0,0 @@
-process.env.TA_FEEDBACK_FORM= 'https://learner-form.test';
-process.env.STAFF_FEEDBACK_FORM= 'https://staff-form.test';

.nvmrc

@@ -1 +1 @@
-16
+12

.tx/config

@@ -1,8 +0,0 @@
-[main]
-host = https://www.transifex.com
-
-[o:open-edx:p:edx-platform:r:frontend-app-discussions]
-file_filter = src/i18n/messages/<lang>.json
-source_file = src/i18n/transifex_input.json
-source_lang = en
-type = KEYVALUEJSON

Makefile

@@ -1,6 +1,5 @@
-export TRANSIFEX_RESOURCE = frontend-app-discussions
 transifex_resource = frontend-app-discussions
-transifex_langs = "ar,fr,es_419,zh_CN,tr_TR,pl,fr_CA,fr_FR,de_DE,it_IT"
+transifex_langs = "ar,fr,es_419,zh_CN"
 
 transifex_utils = ./node_modules/.bin/transifex-utils.js
 i18n = ./src/i18n
@@ -11,24 +10,12 @@ tx_url2 = https://www.transifex.com/api/2/project/edx-platform/resource/$(transi
 # This directory must match .babelrc .
 transifex_temp = ./temp/babel-plugin-react-intl
 
-NPM_TESTS=build i18n_extract lint test
-
-.PHONY: test
-test: $(addprefix test.npm.,$(NPM_TESTS))  ## validate ci suite
-
-.PHONY: test.npm.*
-test.npm.%: validate-no-uncommitted-package-lock-changes
-	test -d node_modules || $(MAKE) requirements
-	npm run $(*)
-
-.PHONY: requirements
-
 precommit:
 	npm run lint
 	npm audit
 
-requirements:  ## install ci requirements
+requirements:
-	npm ci
+	npm install
 
 i18n.extract:
 	# Pulling display strings from .jsx files into .json files...
@@ -51,17 +38,17 @@ push_translations:
 	# Pushing strings to Transifex...
 	tx push -s
 	# Fetching hashes from Transifex...
-	./node_modules/@edx/reactifex/bash_scripts/get_hashed_strings_v3.sh
+	./node_modules/reactifex/bash_scripts/get_hashed_strings.sh $(tx_url1)
 	# Writing out comments to file...
-	$(transifex_utils) $(transifex_temp) --comments --v3-scripts-path
+	$(transifex_utils) $(transifex_temp) --comments
 	# Pushing comments to Transifex...
-	./node_modules/@edx/reactifex/bash_scripts/put_comments_v3.sh
+	./node_modules/reactifex/bash_scripts/put_comments.sh $(tx_url2)
 
 # Pulls translations from Transifex.
 pull_translations:
-	tx pull -t -f --mode reviewed --languages=$(transifex_langs)
+	tx pull -f --mode reviewed --language=$(transifex_langs)
 
 # This target is used by Travis.
 validate-no-uncommitted-package-lock-changes:
 	# Checking for package-lock.json changes...
-	git diff --exit-code package-lock.json
+	git diff --exit-code package-lock.json

README.rst

@@ -14,7 +14,7 @@ This repository is a React-based micro frontend for the Open edX discussion foru
 
 1. Clone your new repo:
 
-  ``git clone https://github.com/openedx/frontend-app-discussions.git``
+  ``git clone https://github.com/edx/frontend-app-discussions.git``
 
 2. Install npm dependencies:
 
@@ -29,7 +29,7 @@ The dev server is running at `http://localhost:2002 <http://localhost:2002>`_.
 Project Structure
 -----------------
 
-The source for this project is organized into nested submodules according to the ADR `Feature-based Application Organization <https://github.com/openedx/frontend-app-discussions/blob/master/docs/decisions/0002-feature-based-application-organization.rst>`_.
+The source for this project is organized into nested submodules according to the ADR `Feature-based Application Organization <https://github.com/edx/frontend-app-discussions/blob/master/docs/decisions/0002-feature-based-application-organization.rst>`_.
 
 Build Process Notes
 -------------------
@@ -41,7 +41,7 @@ The production build is created with ``npm run build``.
 Internationalization
 --------------------
 
-Please see `edx/frontend-platform's i18n module <https://edx.github.io/frontend-platform/module-Internationalization.html>`_ for documentation on internationalization.  The documentation explains how to use it, and the `How To <https://github.com/openedx/frontend-i18n/blob/master/docs/how_tos/i18n.rst>`_ has more detail.
+Please see `edx/frontend-platform's i18n module <https://edx.github.io/frontend-platform/module-Internationalization.html>`_ for documentation on internationalization.  The documentation explains how to use it, and the `How To <https://github.com/edx/frontend-i18n/blob/master/docs/how_tos/i18n.rst>`_ has more detail.
 
 .. |Build Status| image:: https://api.travis-ci.org/edx/frontend-app-discussions.svg?branch=master
    :target: https://travis-ci.org/edx/frontend-app-discussions

docs/how_tos/i18n.rst

@@ -2,4 +2,4 @@
 React App i18n HOWTO
 ####################
 
-This document has moved to the frontend-platform repo: https://github.com/openedx/frontend-platform/blob/master/docs/how_tos/i18n.rst
+This document has moved to the frontend-platform repo: https://github.com/edx/frontend-platform/blob/master/docs/how_tos/i18n.rst

jest.config.js

@@ -2,8 +2,7 @@ const { createConfig } = require('@edx/frontend-build');
 
 module.exports = createConfig('jest', {
   // setupFilesAfterEnv is used after the jest environment has been loaded.  In general this is what you want.  
-  // If you want to add config BEFORE jest loads, use setupFiles instead.
+  // If you want to add config BEFORE jest loads, use setupFiles instead.  
-  setupFiles: ['<rootDir>/.jest/setEnvVars.js'],
   setupFilesAfterEnv: [
     '<rootDir>/src/setupTest.js',
   ],

package.json

@@ -4,14 +4,16 @@
   "description": "Discussions Frontend",
   "repository": {
     "type": "git",
-    "url": "git+https://github.com/openedx/frontend-app-discussions.git"
+    "url": "git+https://github.com/edx/frontend-app-discussions.git"
   },
   "browserslist": [
-    "extends @edx/browserslist-config"
+    "last 2 versions",
+    "ie 11"
   ],
   "scripts": {
     "build": "fedx-scripts webpack",
     "i18n_extract": "BABEL_ENV=i18n fedx-scripts babel src --quiet > /dev/null",
+    "is-es5": "es-check es5 ./dist/*.js",
     "lint": "fedx-scripts eslint --ext .js --ext .jsx .",
     "lint:fix": "fedx-scripts eslint --ext .js --ext .jsx . --fix",
     "snapshot": "fedx-scripts jest --updateSnapshot",
@@ -25,19 +27,17 @@
   },
   "author": "edX",
   "license": "AGPL-3.0",
-  "homepage": "https://github.com/openedx/frontend-app-discussions#readme",
+  "homepage": "https://github.com/edx/frontend-app-discussions#readme",
   "publishConfig": {
     "access": "public"
   },
   "bugs": {
-    "url": "https://github.com/openedx/frontend-app-discussions/issues"
+    "url": "https://github.com/edx/frontend-app-discussions/issues"
   },
   "dependencies": {
     "@edx/brand": "npm:@edx/brand-openedx@1.1.0",
-    "@edx/frontend-component-footer": "11.2.0",
+    "@edx/frontend-platform": "1.15.4",
-    "@edx/frontend-component-header": "3.2.0",
+    "@edx/paragon": "19.10.1",
-    "@edx/frontend-platform": "2.6.1",
-    "@edx/paragon": "20.15.0",
     "@reduxjs/toolkit": "1.8.0",
     "@tinymce/tinymce-react": "3.13.1",
     "babel-polyfill": "6.26.0",
@@ -49,7 +49,6 @@
     "raw-loader": "4.0.2",
     "react": "16.14.0",
     "react-dom": "16.14.0",
-    "react-mathjax-preview": "2.2.6",
     "react-redux": "7.2.6",
     "react-router": "5.2.1",
     "react-router-dom": "5.3.0",
@@ -60,20 +59,18 @@
     "yup": "0.31.1"
   },
   "devDependencies": {
-    "@edx/browserslist-config": "1.1.0",
+    "@edx/frontend-build": "9.1.4",
-    "@edx/frontend-build": "11.0.1",
-    "@edx/reactifex": "1.0.3",
     "@testing-library/jest-dom": "5.16.2",
     "@testing-library/react": "12.1.4",
     "@testing-library/user-event": "13.5.0",
     "axios-mock-adapter": "1.20.0",
-    "babel-plugin-react-intl": "8.2.25",
     "codecov": "3.8.3",
     "es-check": "6.2.1",
     "eslint-plugin-simple-import-sort": "7.0.0",
     "glob": "7.2.0",
     "husky": "7.0.4",
     "jest": "27.5.1",
+    "reactifex": "1.1.1",
     "rosie": "2.1.0"
   }
 }

public/index.html

@@ -1,16 +1,12 @@
-<!DOCTYPE html>
+<!doctype html>
 <html lang="en-us">
   <head>
-    <title>Discussions | <%= process.env.SITE_NAME %></title>
+      <title>Discussions | <%= process.env.SITE_NAME %></title>
-    <meta charset="utf-8" />
+      <meta charset="utf-8">
-    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+      <meta name="viewport" content="width=device-width, initial-scale=1.0">
-    <link
+      <link rel="shortcut icon" href="<%=htmlWebpackPlugin.options.FAVICON_URL%>" type="image/x-icon" />
-      rel="shortcut icon"
-      href="<%=htmlWebpackPlugin.options.FAVICON_URL%>"
-      type="image/x-icon"
-    />
   </head>
-  <body>
+  <body class="vh-100 vw-100 overflow-hidden">
-    <div id="root" class="small"></div>
+    <div id="root" class="vh-100 vw-100 small"></div>
   </body>
 </html>

src/components/FilterBar.jsx

@@ -1,201 +0,0 @@
-/* eslint-disable react/forbid-prop-types */
-import React, { useMemo, useState } from 'react';
-import PropTypes from 'prop-types';
-
-import { capitalize, toString } from 'lodash';
-import { useSelector } from 'react-redux';
-
-import { injectIntl, intlShape } from '@edx/frontend-platform/i18n';
-import {
-  Collapsible, Form, Icon, Spinner,
-} from '@edx/paragon';
-import { Tune } from '@edx/paragon/icons';
-
-import {
-  PostsStatusFilter, RequestStatus,
-  ThreadOrdering, ThreadType,
-} from '../data/constants';
-import { selectCourseCohorts } from '../discussions/cohorts/data/selectors';
-import messages from '../discussions/posts/post-filter-bar/messages';
-import { ActionItem } from '../discussions/posts/post-filter-bar/PostFilterBar';
-
-function FilterBar({
-  intl,
-  filters,
-  selectedFilters,
-  onFilterChange,
-  showCohortsFilter,
-}) {
-  const [isOpen, setOpen] = useState(false);
-  const cohorts = useSelector(selectCourseCohorts);
-  const { status } = useSelector(state => state.cohorts);
-  const selectedCohort = useMemo(() => cohorts.find(cohort => (
-    toString(cohort.id) === selectedFilters.cohort)),
-  [selectedFilters.cohort]);
-
-  const allFilters = [
-    {
-      id: 'type-all',
-      label: intl.formatMessage(messages.allPosts),
-      value: ThreadType.ALL,
-    },
-    {
-      id: 'type-discussions',
-      label: intl.formatMessage(messages.filterDiscussions),
-      value: ThreadType.DISCUSSION,
-    },
-    {
-      id: 'type-questions',
-      label: intl.formatMessage(messages.filterQuestions),
-      value: ThreadType.QUESTION,
-    },
-    {
-      id: 'status-any',
-      label: intl.formatMessage(messages.filterAnyStatus),
-      value: PostsStatusFilter.ALL,
-    },
-    {
-      id: 'status-unread',
-      label: intl.formatMessage(messages.filterUnread),
-      value: PostsStatusFilter.UNREAD,
-    },
-    {
-      id: 'status-reported',
-      label: intl.formatMessage(messages.filterReported),
-      value: PostsStatusFilter.REPORTED,
-    },
-    {
-      id: 'status-unanswered',
-      label: intl.formatMessage(messages.filterUnanswered),
-      value: PostsStatusFilter.UNANSWERED,
-    },
-    {
-      id: 'status-unresponded',
-      label: intl.formatMessage(messages.filterUnresponded),
-      value: PostsStatusFilter.UNRESPONDED,
-    },
-    {
-      id: 'sort-activity',
-      label: intl.formatMessage(messages.lastActivityAt),
-      value: ThreadOrdering.BY_LAST_ACTIVITY,
-    },
-    {
-      id: 'sort-comments',
-      label: intl.formatMessage(messages.commentCount),
-      value: ThreadOrdering.BY_COMMENT_COUNT,
-    },
-    {
-      id: 'sort-votes',
-      label: intl.formatMessage(messages.voteCount),
-      value: ThreadOrdering.BY_VOTE_COUNT,
-    },
-  ];
-
-  return (
-    <Collapsible.Advanced
-      open={isOpen}
-      onToggle={() => setOpen(!isOpen)}
-      className="filter-bar collapsible-card-lg border-0"
-    >
-      <Collapsible.Trigger className="collapsible-trigger border-0">
-        <span className="text-primary-700 pr-4">
-          {intl.formatMessage(messages.sortFilterStatus, {
-            own: false,
-            type: selectedFilters.type,
-            sort: selectedFilters.orderBy,
-            status: selectedFilters.status,
-            cohortType: selectedCohort?.name ? 'group' : 'all',
-            cohort: capitalize(selectedCohort?.name),
-          })}
-        </span>
-        <Collapsible.Visible whenClosed>
-          <Icon src={Tune} />
-        </Collapsible.Visible>
-        <Collapsible.Visible whenOpen>
-          <Icon src={Tune} />
-        </Collapsible.Visible>
-      </Collapsible.Trigger>
-      <Collapsible.Body className="collapsible-body px-4 pb-3 pt-0">
-        <Form>
-          <div className="d-flex flex-row py-2 justify-content-between">
-            {filters.map((value) => (
-              <Form.RadioSet
-                name={value.name}
-                className="d-flex flex-column list-group list-group-flush"
-                value={selectedFilters[value.name]}
-                onChange={onFilterChange}
-              >
-                {
-                  value.filters.map(filterName => {
-                    const element = allFilters.find(obj => obj.id === filterName);
-                    if (element) {
-                      return (
-                        <ActionItem
-                          id={element.id}
-                          label={element.label}
-                          value={element.value}
-                          selected={selectedFilters[value.name]}
-                        />
-                      );
-                    }
-                    return false;
-                  })
-                }
-
-              </Form.RadioSet>
-            ))}
-          </div>
-          {showCohortsFilter && (
-            <>
-              <div className="border-bottom my-2" />
-              {status === RequestStatus.IN_PROGRESS ? (
-                <div className="d-flex justify-content-center p-4">
-                  <Spinner animation="border" variant="primary" size="lg" />
-                </div>
-              ) : (
-                <div className="d-flex flex-row pt-2">
-                  <Form.RadioSet
-                    name="cohort"
-                    className="d-flex flex-column list-group list-group-flush w-100"
-                    value={selectedFilters.cohort}
-                    onChange={onFilterChange}
-                  >
-                    <ActionItem
-                      id="all-groups"
-                      label="All groups"
-                      value=""
-                      selected={selectedFilters.cohort}
-                    />
-                    {cohorts.map(cohort => (
-                      <ActionItem
-                        key={toString(cohort.id)}
-                        id={toString(cohort.id)}
-                        label={capitalize(cohort.name)}
-                        value={toString(cohort.id)}
-                        selected={selectedFilters.cohort}
-                      />
-                    ))}
-                  </Form.RadioSet>
-                </div>
-              )}
-            </>
-          )}
-        </Form>
-      </Collapsible.Body>
-    </Collapsible.Advanced>
-  );
-}
-
-FilterBar.propTypes = {
-  intl: intlShape.isRequired,
-  filters: PropTypes.array.isRequired,
-  selectedFilters: PropTypes.object.isRequired,
-  onFilterChange: PropTypes.func.isRequired,
-  showCohortsFilter: PropTypes.bool,
-};
-
-FilterBar.defaultProps = {
-  showCohortsFilter: false,
-};
-
-export default injectIntl(FilterBar);

src/components/HTMLLoader.jsx

@@ -1,66 +0,0 @@
-import React from 'react';
-import PropTypes from 'prop-types';
-
-import MathJax from 'react-mathjax-preview';
-
-const baseConfig = {
-  showMathMenu: true,
-  tex2jax: {
-    inlineMath: [
-      ['$', '$'],
-      ['\\\\(', '\\\\)'],
-      ['\\(', '\\)'],
-      ['[mathjaxinline]', '[/mathjaxinline]'],
-      ['\\begin{math}', '\\end{math}'],
-    ],
-    displayMath: [
-      ['[mathjax]', '[/mathjax]'],
-      ['$$', '$$'],
-      ['\\\\[', '\\\\]'],
-      ['\\[', '\\]'],
-      ['\\begin{displaymath}', '\\end{displaymath}'],
-      ['\\begin{equation}', '\\end{equation}'],
-    ],
-  },
-
-  skipStartupTypeset: true,
-};
-
-function HTMLLoader({ htmlNode, componentId, cssClassName }) {
-  const isLatex = htmlNode.match(/(\${1,2})((?:\\.|.)*)\1/)
-                  || htmlNode.match(/(\[mathjax](.+?)\[\/mathjax])+/)
-                  || htmlNode.match(/(\[mathjaxinline](.+?)\[\/mathjaxinline])+/)
-                  || htmlNode.match(/(\\begin\{math}(.+?)\\end\{math})+/)
-                  || htmlNode.match(/(\\begin\{displaymath}(.+?)\\end\{displaymath})+/)
-                  || htmlNode.match(/(\\begin\{equation}(.+?)\\end\{equation})+/)
-                  || htmlNode.match(/(\\\[(.+?)\\\])+/)
-                  || htmlNode.match(/(\\\((.+?)\\\))+/);
-
-  return (
-    isLatex ? (
-      <MathJax
-        math={htmlNode}
-        id={componentId}
-        className={cssClassName}
-        sanitizeOptions={{ USE_PROFILES: { html: true } }}
-        config={baseConfig}
-      />
-    )
-      // eslint-disable-next-line react/no-danger
-      : <div className={cssClassName} id={componentId} dangerouslySetInnerHTML={{ __html: htmlNode }} />
-  );
-}
-
-HTMLLoader.propTypes = {
-  htmlNode: PropTypes.node,
-  componentId: PropTypes.string,
-  cssClassName: PropTypes.string,
-};
-
-HTMLLoader.defaultProps = {
-  htmlNode: '',
-  componentId: null,
-  cssClassName: '',
-};
-
-export default HTMLLoader;

src/components/NavigationBar/CourseTabsNavigation.jsx

@@ -1,64 +0,0 @@
-import React, { useEffect } from 'react';
-import PropTypes from 'prop-types';
-
-import classNames from 'classnames';
-import { useDispatch, useSelector } from 'react-redux';
-
-import { injectIntl, intlShape } from '@edx/frontend-platform/i18n';
-
-import { fetchTab } from './data/thunks';
-import Tabs from './tabs/Tabs';
-import messages from './messages';
-
-import './navBar.scss';
-
-function CourseTabsNavigation({
-  activeTab, className, intl, courseId, rootSlug,
-}) {
-  const dispatch = useDispatch();
-
-  const tabs = useSelector(state => state.courseTabs.tabs);
-  useEffect(() => {
-    dispatch(fetchTab(courseId, rootSlug));
-  }, [courseId]);
-
-  return (
-    <div id="courseTabsNavigation" className={classNames('course-tabs-navigation', className)}>
-      <div className="container-xl">
-        {!!tabs.length
-          && (
-          <Tabs
-            className="nav-underline-tabs"
-            aria-label={intl.formatMessage(messages.courseMaterial)}
-          >
-            {tabs.map(({ url, title, slug }) => (
-              <a
-                key={slug}
-                className={classNames('nav-item flex-shrink-0 nav-link', { active: slug === activeTab })}
-                href={url}
-              >
-                {title}
-              </a>
-            ))}
-          </Tabs>
-          )}
-      </div>
-    </div>
-  );
-}
-
-CourseTabsNavigation.propTypes = {
-  activeTab: PropTypes.string,
-  className: PropTypes.string,
-  rootSlug: PropTypes.string,
-  courseId: PropTypes.string.isRequired,
-  intl: intlShape.isRequired,
-};
-
-CourseTabsNavigation.defaultProps = {
-  activeTab: undefined,
-  className: null,
-  rootSlug: 'outline',
-};
-
-export default injectIntl(CourseTabsNavigation);

src/components/NavigationBar/data/api.js

@@ -1,29 +0,0 @@
-/* eslint-disable import/prefer-default-export */
-import { camelCaseObject } from '@edx/frontend-platform';
-import { getAuthenticatedHttpClient } from '@edx/frontend-platform/auth';
-
-import { API_BASE_URL } from '../../../data/constants';
-
-function normalizeCourseHomeCourseMetadata(metadata, rootSlug) {
-  const data = camelCaseObject(metadata);
-  return {
-    ...data,
-    tabs: data.tabs.map(tab => ({
-      // The API uses "courseware" as a slug for both courseware and the outline tab.
-      // If needed, we switch it to "outline" here for
-      // use within the MFE to differentiate between course home and courseware.
-      slug: tab.tabId === 'courseware' ? rootSlug : tab.tabId,
-      title: tab.title,
-      url: tab.url,
-    })),
-    isMasquerading: data.originalUserIsStaff && !data.isStaff,
-  };
-}
-
-export async function getCourseHomeCourseMetadata(courseId, rootSlug) {
-  const url = `${API_BASE_URL}/api/course_home/course_metadata/${courseId}`;
-  // don't know the context of adding timezone in url. hence omitting it
-  // url = appendBrowserTimezoneToUrl(url);
-  const { data } = await getAuthenticatedHttpClient().get(url);
-  return normalizeCourseHomeCourseMetadata(data, rootSlug);
-}

src/components/NavigationBar/data/index.js

@@ -1 +0,0 @@
-export * from './slice';

src/components/NavigationBar/data/slice.js

@@ -1,51 +0,0 @@
-/* eslint-disable no-param-reassign */
-import { createSlice } from '@reduxjs/toolkit';
-
-export const LOADING = 'loading';
-export const LOADED = 'loaded';
-export const FAILED = 'failed';
-export const DENIED = 'denied';
-
-const slice = createSlice({
-  name: 'courseTabs',
-  initialState: {
-    courseStatus: 'loading',
-    courseId: null,
-    tabs: [],
-    courseTitle: null,
-    courseNumber: null,
-    org: null,
-  },
-  reducers: {
-    fetchTabDenied: (state, { payload }) => {
-      state.courseId = payload.courseId;
-      state.courseStatus = DENIED;
-    },
-    fetchTabFailure: (state, { payload }) => {
-      state.courseId = payload.courseId;
-      state.courseStatus = FAILED;
-    },
-    fetchTabRequest: (state, { payload }) => {
-      state.courseId = payload.courseId;
-      state.courseStatus = LOADING;
-    },
-    fetchTabSuccess: (state, { payload }) => {
-      state.courseId = payload.courseId;
-      state.targetUserId = payload.targetUserId;
-      state.tabs = payload.tabs;
-      state.courseStatus = LOADED;
-      state.courseTitle = payload.courseTitle;
-      state.courseNumber = payload.courseNumber;
-      state.org = payload.org;
-    },
-  },
-});
-
-export const {
-  fetchTabDenied,
-  fetchTabFailure,
-  fetchTabRequest,
-  fetchTabSuccess,
-} = slice.actions;
-
-export const courseTabsReducer = slice.reducer;

src/components/NavigationBar/data/thunks.js

@@ -1,33 +0,0 @@
-/* eslint-disable import/prefer-default-export, no-unused-expressions */
-import { logError } from '@edx/frontend-platform/logging';
-
-import { getCourseHomeCourseMetadata } from './api';
-import {
-  fetchTabDenied,
-  fetchTabFailure,
-  fetchTabRequest,
-  fetchTabSuccess,
-} from './slice';
-
-export function fetchTab(courseId, rootSlug) {
-  return async (dispatch) => {
-    dispatch(fetchTabRequest({ courseId }));
-    try {
-      const courseHomeCourseMetadata = await getCourseHomeCourseMetadata(courseId, rootSlug);
-      if (!courseHomeCourseMetadata.courseAccess.hasAccess) {
-        dispatch(fetchTabDenied({ courseId }));
-      } else {
-        dispatch(fetchTabSuccess({
-          courseId,
-          tabs: courseHomeCourseMetadata.tabs,
-          org: courseHomeCourseMetadata.org,
-          courseNumber: courseHomeCourseMetadata.number,
-          courseTitle: courseHomeCourseMetadata.title,
-        }));
-      }
-    } catch (e) {
-      dispatch(fetchTabFailure({ courseId }));
-      logError(e);
-    }
-  };
-}

src/components/NavigationBar/index.js

@@ -1,2 +0,0 @@
-/* eslint-disable import/prefer-default-export */
-export { default as CourseTabsNavigation } from './CourseTabsNavigation';

src/components/NavigationBar/messages.js

@@ -1,11 +0,0 @@
-import { defineMessages } from '@edx/frontend-platform/i18n';
-
-const messages = defineMessages({
-  courseMaterial: {
-    id: 'navigation.course.tabs.label',
-    defaultMessage: 'Course Material',
-    description: 'The accessible label for course tabs navigation',
-  },
-});
-
-export default messages;

src/components/NavigationBar/navBar.scss

@@ -1,47 +0,0 @@
-@import "@edx/brand/paragon/fonts.scss";
-@import "@edx/brand/paragon/variables.scss";
-@import "@edx/paragon/scss/core/core.scss";
-@import "@edx/brand/paragon/overrides.scss";
-
-$fa-font-path: "~font-awesome/fonts";
-@import "~font-awesome/scss/font-awesome";
-.course-tabs-navigation {
-  border-bottom: solid 1px #eaeaea;
-
-  .nav a,
-  .nav button {
-    &:hover {
-      background-color: $light-400;
-    }
-  }
-
-  .nav a {
-    &:not(.active):hover {
-      background-color: $light-400;
-      border-bottom: none;
-    }
-  }
-}
-
-.nav-underline-tabs {
-  margin: 0 0 -1px;
-
-  .nav-link {
-    border-bottom: 4px solid transparent;
-    border-top: 4px solid transparent;
-    color: $gray-700;
-
-    // temporary until we can remove .btn class from dropdowns
-    border-left: 0;
-    border-right: 0;
-    border-radius: 0;
-
-    &:hover,
-    &:focus,
-    &.active {
-      font-weight: $font-weight-normal;
-      color: $primary-500;
-      border-bottom-color: $primary-500;
-    }
-  }
-}

src/components/NavigationBar/tabs/Tabs.jsx

@@ -1,75 +0,0 @@
-import React, { useMemo } from 'react';
-import PropTypes from 'prop-types';
-
-import classNames from 'classnames';
-
-import { FormattedMessage } from '@edx/frontend-platform/i18n';
-import { Dropdown } from '@edx/paragon';
-
-import useIndexOfLastVisibleChild from './useIndexOfLastVisibleChild';
-
-export default function Tabs({ children, className, ...attrs }) {
-  const [
-    indexOfLastVisibleChild,
-    containerElementRef,
-    invisibleStyle,
-    overflowElementRef,
-  ] = useIndexOfLastVisibleChild();
-
-  const tabChildren = useMemo(() => {
-    const childrenArray = React.Children.toArray(children);
-    const indexOfOverflowStart = indexOfLastVisibleChild + 1;
-
-    // All tabs will be rendered. Those that would overflow are set to invisible.
-    const wrappedChildren = childrenArray.map((child, index) => React.cloneElement(child, {
-      style: index > indexOfLastVisibleChild ? invisibleStyle : null,
-    }));
-
-    // Build the list of items to put in the overflow menu
-    const overflowChildren = childrenArray.slice(indexOfOverflowStart)
-      .map(overflowChild => React.cloneElement(overflowChild, { className: 'dropdown-item' }));
-
-    // Insert the overflow menu at the cut off index (even if it will be hidden
-    // it so it can be part of measurements)
-    wrappedChildren.splice(indexOfOverflowStart, 0, (
-      <div
-        className="nav-item flex-shrink-0"
-        style={indexOfOverflowStart >= React.Children.count(children) ? invisibleStyle : null}
-        ref={overflowElementRef}
-        key="overflow"
-      >
-        <Dropdown className="h-100">
-          <Dropdown.Toggle variant="link" className="nav-link h-100" id="learn.course.tabs.navigation.overflow.menu">
-            <FormattedMessage
-              id="learn.course.tabs.navigation.overflow.menu"
-              description="The title of the overflow menu for course tabs"
-              defaultMessage="More..."
-            />
-          </Dropdown.Toggle>
-          <Dropdown.Menu className="dropdown-menu-right">{overflowChildren}</Dropdown.Menu>
-        </Dropdown>
-      </div>
-    ));
-    return wrappedChildren;
-  }, [children, indexOfLastVisibleChild]);
-
-  return (
-    <nav
-      {...attrs}
-      className={classNames('nav flex-nowrap', className)}
-      ref={containerElementRef}
-    >
-      {tabChildren}
-    </nav>
-  );
-}
-
-Tabs.propTypes = {
-  children: PropTypes.node,
-  className: PropTypes.string,
-};
-
-Tabs.defaultProps = {
-  children: null,
-  className: undefined,
-};

src/components/NavigationBar/tabs/Tabs.test.jsx

@@ -1,60 +0,0 @@
-import React from 'react';
-
-import { render, screen } from '@testing-library/react';
-import { IntlProvider } from 'react-intl';
-
-import { initializeMockApp } from '@edx/frontend-platform';
-
-import Tabs from './Tabs';
-import useIndexOfLastVisibleChild from './useIndexOfLastVisibleChild';
-
-jest.mock('./useIndexOfLastVisibleChild');
-
-describe('Tabs', () => {
-  const mockChildren = [...Array(4).keys()].map(i => (<button key={i} type="button">{`Item ${i}`}</button>));
-  // Only half of the children will be visible. The rest of them will be in the dropdown.
-  const indexOfLastVisibleChild = mockChildren.length / 2 - 1;
-
-  const invisibleStyle = { visibility: 'hidden' };
-  useIndexOfLastVisibleChild.mockReturnValue([indexOfLastVisibleChild, null, invisibleStyle, null]);
-
-  function renderComponent(children = null) {
-    render(
-      <IntlProvider locale="en">
-        <Tabs>
-          {children}
-        </Tabs>
-      </IntlProvider>,
-    );
-  }
-
-  beforeEach(async () => {
-    initializeMockApp({
-      authenticatedUser: {
-        userId: 3,
-        username: 'abc123',
-        administrator: true,
-        roles: [],
-      },
-    });
-  });
-
-  it('renders without children', async () => {
-    renderComponent();
-    expect(screen.getByRole('button', { text: 'More...', hidden: true })).toBeInTheDocument();
-  });
-
-  it('hides invisible children', async () => {
-    renderComponent(mockChildren);
-    // adding hidden property is necessary because everything enclosed in a div with property hidden
-    const allButtons = screen.getAllByRole('button', { hidden: true });
-    expect(screen.getAllByRole('button', { hidden: false })).toHaveLength(3);
-    [...Array(mockChildren.length).keys()].forEach(i => {
-      if (i <= indexOfLastVisibleChild + 1) {
-        expect(allButtons[i]).not.toHaveAttribute('style');
-      } else {
-        expect(allButtons[i]).toHaveStyle('visibility: hidden;');
-      }
-    });
-  });
-});

src/components/NavigationBar/tabs/useIndexOfLastVisibleChild.js

@@ -1,77 +0,0 @@
-import { useLayoutEffect, useRef, useState } from 'react';
-
-import { useWindowSize } from '@edx/paragon';
-
-const invisibleStyle = {
-  position: 'absolute',
-  left: 0,
-  pointerEvents: 'none',
-  visibility: 'hidden',
-};
-
-/**
- * This hook will find the index of the last child of a containing element
- * that fits within its bounding rectangle. This is done by summing the widths
- * of the children until they exceed the width of the container.
- *
- * The hook returns an array containing:
- * [indexOfLastVisibleChild, containerElementRef, invisibleStyle, overflowElementRef]
- *
- * indexOfLastVisibleChild - the index of the last visible child
- * containerElementRef - a ref to be added to the containing html node
- * invisibleStyle - a set of styles to be applied to child of the containing node
- *    if it needs to be hidden. These styles remove the element visually, from
- *    screen readers, and from normal layout flow. But, importantly, these styles
- *    preserve the width of the element, so that future width calculations will
- *    still be accurate.
- * overflowElementRef - a ref to be added to an html node inside the container
- *    that is likely to be used to contain a "More" type dropdown or other
- *    mechanism to reveal hidden children. The width of this element is always
- *    included when determining which children will fit or not. Usage of this ref
- *    is optional.
- */
-export default function useIndexOfLastVisibleChild() {
-  const containerElementRef = useRef(null);
-  const overflowElementRef = useRef(null);
-  const containingRectRef = useRef({});
-  const [indexOfLastVisibleChild, setIndexOfLastVisibleChild] = useState(-1);
-  const windowSize = useWindowSize();
-
-  useLayoutEffect(() => {
-    const containingRect = containerElementRef.current.getBoundingClientRect();
-
-    // No-op if the width is unchanged.
-    // (Assumes tabs themselves don't change count or width).
-    if (!containingRect.width === containingRectRef.current.width) {
-      return;
-    }
-    // Update for future comparison
-    containingRectRef.current = containingRect;
-
-    // Get array of child nodes from NodeList form
-    const childNodesArr = Array.prototype.slice.call(containerElementRef.current.children);
-    const { nextIndexOfLastVisibleChild } = childNodesArr
-      // filter out the overflow element
-      .filter(childNode => childNode !== overflowElementRef.current)
-      // sum the widths to find the last visible element's index
-      .reduce((acc, childNode, index) => {
-        // use floor to prevent rounding errors
-        acc.sumWidth += Math.floor(childNode.getBoundingClientRect().width);
-        if (acc.sumWidth <= containingRect.width) {
-          acc.nextIndexOfLastVisibleChild = index;
-        }
-        return acc;
-      }, {
-        // Include the overflow element's width to begin with. Doing this means
-        // sometimes we'll show a dropdown with one item in it when it would fit,
-        // but allowing this case dramatically simplifies the calculations we need
-        // to do above.
-        sumWidth: overflowElementRef.current ? overflowElementRef.current.getBoundingClientRect().width : 0,
-        nextIndexOfLastVisibleChild: -1,
-      });
-
-    setIndexOfLastVisibleChild(nextIndexOfLastVisibleChild);
-  }, [windowSize, containerElementRef.current]);
-
-  return [indexOfLastVisibleChild, containerElementRef, invisibleStyle, overflowElementRef];
-}

src/components/PostPreviewPane.jsx

@@ -1,64 +0,0 @@
-import React, { useState } from 'react';
-import PropTypes from 'prop-types';
-
-import { injectIntl, intlShape } from '@edx/frontend-platform/i18n';
-import { Button, Icon, IconButton } from '@edx/paragon';
-import { Close } from '@edx/paragon/icons';
-
-import messages from '../discussions/posts/post-editor/messages';
-import HTMLLoader from './HTMLLoader';
-
-function PostPreviewPane({
-  htmlNode, intl, isPost, editExisting,
-}) {
-  const [showPreviewPane, setShowPreviewPane] = useState(false);
-
-  return (
-    <>
-      {showPreviewPane && (
-        <div
-          className={`w-100 p-2 bg-light-200 rounded box-shadow-down-1 post-preview ${isPost ? 'mt-2 mb-5' : 'my-3'}`}
-          style={{ minHeight: '200px', wordBreak: 'break-word' }}
-        >
-          <IconButton
-            onClick={() => setShowPreviewPane(false)}
-            alt={intl.formatMessage(messages.actionsAlt)}
-            src={Close}
-            iconAs={Icon}
-            size="inline"
-            className="float-right p-3"
-            iconClassNames="icon-size"
-          />
-          <HTMLLoader htmlNode={htmlNode} cssClassName="text-primary" />
-        </div>
-      )}
-      <div className="d-flex justify-content-end">
-        {!showPreviewPane
-        && (
-          <Button
-            variant="link"
-            size="md"
-            onClick={() => setShowPreviewPane(true)}
-            className={`text-primary-500 px-0 ${editExisting && 'mb-4.5'}`}
-          >
-            {intl.formatMessage(messages.showPreviewButton)}
-          </Button>
-        )}
-      </div>
-    </>
-  );
-}
-
-PostPreviewPane.propTypes = {
-  intl: intlShape.isRequired,
-  htmlNode: PropTypes.node.isRequired,
-  isPost: PropTypes.bool,
-  editExisting: PropTypes.bool,
-};
-
-PostPreviewPane.defaultProps = {
-  isPost: false,
-  editExisting: false,
-};
-
-export default injectIntl(PostPreviewPane);

src/components/ScrollThreshold.jsx

@@ -0,0 +1,41 @@
+import React, {
+  useEffect,
+  useRef,
+} from 'react';
+import PropTypes from 'prop-types';
+
+function ScrollThreshold({ onScroll }) {
+  const elementRef = useRef(null);
+
+  useEffect(() => {
+    if (!elementRef.current) {
+      return undefined;
+    }
+
+    // create the observer
+    const observer = new IntersectionObserver(
+      ([entry]) => {
+        if (entry.isIntersecting) {
+          onScroll();
+        }
+      },
+    );
+
+    observer.observe(elementRef.current);
+
+    // cleanup callback
+    return () => {
+      observer.disconnect();
+    };
+  }, [elementRef]);
+
+  return (
+    <div ref={elementRef} />
+  );
+}
+
+ScrollThreshold.propTypes = {
+  onScroll: PropTypes.func.isRequired,
+};
+
+export default ScrollThreshold;

src/components/Search.jsx

@@ -1,86 +0,0 @@
-import React, { useContext, useEffect } from 'react';
-
-import camelCase from 'lodash/camelCase';
-import { useDispatch, useSelector } from 'react-redux';
-
-import { injectIntl, intlShape } from '@edx/frontend-platform/i18n';
-import { Icon, SearchField } from '@edx/paragon';
-import { Search as SearchIcon } from '@edx/paragon/icons';
-
-import { DiscussionContext } from '../discussions/common/context';
-import { setUsernameSearch } from '../discussions/learners/data';
-import { setSearchQuery } from '../discussions/posts/data';
-import postsMessages from '../discussions/posts/post-actions-bar/messages';
-import { setFilter as setTopicFilter } from '../discussions/topics/data/slices';
-
-function Search({ intl }) {
-  const dispatch = useDispatch();
-  const { page } = useContext(DiscussionContext);
-  const postSearch = useSelector(({ threads }) => threads.filters.search);
-  const topicSearch = useSelector(({ topics }) => topics.filter);
-  const learnerSearch = useSelector(({ learners }) => learners.usernameSearch);
-  const isPostSearch = ['posts', 'my-posts'].includes(page);
-  const isTopicSearch = 'topics'.includes(page);
-  let searchValue = '';
-  let currentValue = '';
-  if (isPostSearch) {
-    currentValue = postSearch;
-  } else if (isTopicSearch) {
-    currentValue = topicSearch;
-  } else {
-    currentValue = learnerSearch;
-  }
-
-  const onClear = () => {
-    dispatch(setSearchQuery(''));
-    dispatch(setTopicFilter(''));
-    dispatch(setUsernameSearch(''));
-  };
-
-  const onChange = (query) => {
-    searchValue = query;
-  };
-
-  const onSubmit = (query) => {
-    if (query === '') {
-      return;
-    }
-    if (isPostSearch) {
-      dispatch(setSearchQuery(query));
-    } else if (page === 'topics') {
-      dispatch(setTopicFilter(query));
-    } else if (page === 'learners') {
-      dispatch(setUsernameSearch(query));
-    }
-  };
-
-  useEffect(() => onClear(), [page]);
-  return (
-    <>
-      <SearchField.Advanced
-        onClear={onClear}
-        onChange={onChange}
-        onSubmit={onSubmit}
-        value={currentValue}
-      >
-        <SearchField.Label />
-        <SearchField.Input
-          style={{ paddingRight: '1rem' }}
-          placeholder={intl.formatMessage(postsMessages.search, { page: camelCase(page) })}
-        />
-        <span className="mt-auto mb-auto mr-2.5 pointer-cursor-hover">
-          <Icon
-            src={SearchIcon}
-            onClick={() => onSubmit(searchValue)}
-          />
-        </span>
-      </SearchField.Advanced>
-    </>
-  );
-}
-
-Search.propTypes = {
-  intl: intlShape.isRequired,
-};
-
-export default injectIntl(Search);

src/components/SearchInfo.jsx

@@ -1,54 +0,0 @@
-import React from 'react';
-import PropTypes from 'prop-types';
-
-import { injectIntl, intlShape } from '@edx/frontend-platform/i18n';
-import { Button, Icon } from '@edx/paragon';
-import { Search } from '@edx/paragon/icons';
-
-import { RequestStatus } from '../data/constants';
-import messages from '../discussions/posts/post-actions-bar/messages';
-
-function SearchInfo({
-  intl,
-  count,
-  text,
-  loadingStatus,
-  onClear,
-  textSearchRewrite,
-}) {
-  return (
-    <div className="d-flex flex-row border-bottom border-light-400">
-      <Icon src={Search} className="justify-content-start ml-3.5 mr-2 mb-2 mt-2.5" />
-      <Button variant="" size="inline" className="text-justify p-2">
-        {loadingStatus === RequestStatus.SUCCESSFUL && (
-          textSearchRewrite ? intl.formatMessage(messages.searchRewriteInfo, {
-            searchString: text,
-            count,
-            textSearchRewrite,
-          })
-            : intl.formatMessage(messages.searchInfo, { count, text })
-        )}
-        {loadingStatus !== RequestStatus.SUCCESSFUL && intl.formatMessage(messages.searchInfoSearching)}
-      </Button>
-      <Button variant="link" size="inline" className="ml-auto mr-3" onClick={onClear} style={{ minWidth: '26%' }}>
-        {intl.formatMessage(messages.clearSearch)}
-      </Button>
-    </div>
-  );
-}
-
-SearchInfo.propTypes = {
-  intl: intlShape.isRequired,
-  count: PropTypes.number.isRequired,
-  text: PropTypes.string.isRequired,
-  loadingStatus: PropTypes.string.isRequired,
-  textSearchRewrite: PropTypes.string,
-  onClear: PropTypes.func,
-};
-
-SearchInfo.defaultProps = {
-  onClear: () => {},
-  textSearchRewrite: null,
-};
-
-export default injectIntl(SearchInfo);

src/components/TinyMCEEditor.jsx

@@ -1,4 +1,4 @@
-import React, { useState } from 'react';
+import React from 'react';
 
 import { Editor } from '@tinymce/tinymce-react';
 import { useParams } from 'react-router';
@@ -6,11 +6,6 @@ import { useParams } from 'react-router';
 // eslint-disable-next-line no-unused-vars,import/no-extraneous-dependencies
 import tinymce from 'tinymce/tinymce';
 
-import { useIntl } from '@edx/frontend-platform/i18n';
-import { ActionRow, AlertModal, Button } from '@edx/paragon';
-
-import { MAX_UPLOAD_FILE_SIZE } from '../data/constants';
-import messages from '../discussions/messages';
 import { uploadFile } from '../discussions/posts/data/api';
 
 import 'tinymce/plugins/code';
@@ -22,16 +17,12 @@ import 'tinymce/icons/default';
 import 'tinymce/skins/ui/oxide/skin.css';
 // importing the plugin js.
 import 'tinymce/plugins/autolink';
-import 'tinymce/plugins/autoresize';
 import 'tinymce/plugins/autosave';
 import 'tinymce/plugins/codesample';
 import 'tinymce/plugins/image';
 import 'tinymce/plugins/imagetools';
 import 'tinymce/plugins/link';
 import 'tinymce/plugins/lists';
-import 'tinymce/plugins/emoticons';
-import 'tinymce/plugins/emoticons/js/emojis';
-import 'tinymce/plugins/charmap';
 /* eslint import/no-webpack-loader-syntax: off */
 // eslint-disable-next-line import/no-unresolved
 import edxBrandCss from '!!raw-loader!sass-loader!../index.scss';
@@ -40,7 +31,6 @@ import contentCss from '!!raw-loader!tinymce/skins/content/default/content.min.c
 // eslint-disable-next-line import/no-unresolved
 import contentUiCss from '!!raw-loader!tinymce/skins/ui/oxide/content.min.css';
 
-/* istanbul ignore next */
 const setup = (editor) => {
   editor.ui.registry.addButton('openedx_code', {
     icon: 'sourcecode',
@@ -56,29 +46,17 @@ const setup = (editor) => {
   });
 };
 
-/* istanbul ignore next */
 export default function TinyMCEEditor(props) {
   // note that skin and content_css is disabled to avoid the normal
   // loading process and is instead loaded as a string via content_style
 
   const { courseId, postId } = useParams();
-  const [showImageWarning, setShowImageWarning] = useState(false);
+
-  const intl = useIntl();
   const uploadHandler = async (blobInfo, success, failure) => {
     try {
       const blob = blobInfo.blob();
-      const imageSize = blobInfo.blob().size / 1024;
-      if (imageSize > MAX_UPLOAD_FILE_SIZE) {
-        failure(`Images size should not exceed ${MAX_UPLOAD_FILE_SIZE} KB`);
-        return;
-      }
       const filename = blobInfo.filename();
       const { location } = await uploadFile(blob, filename, courseId, postId || 'root');
-      const img = new Image();
-      img.onload = function () {
-        if (img.height > 999 || img.width > 999) { setShowImageWarning(true); }
-      };
-      img.src = location;
       success(location);
     } catch (e) {
       failure(e.toString(), { remove: true });
@@ -94,54 +72,32 @@ export default function TinyMCEEditor(props) {
   }
 
   return (
-    <>
+    <Editor
-      <Editor
+      init={{
-        init={{
+        skin: false,
-          skin: false,
+        menubar: false,
-          menubar: false,
+        branding: false,
-          branding: false,
+        contextmenu: false,
-          contextmenu: false,
+        browser_spellcheck: true,
-          browser_spellcheck: true,
+        a11y_advanced_options: true,
-          a11y_advanced_options: true,
+        autosave_interval: '1s',
-          autosave_interval: '1s',
+        autosave_restore_when_empty: true,
-          autosave_restore_when_empty: false,
+        plugins: 'autosave codesample link lists image imagetools code',
-          plugins: 'autoresize autosave codesample link lists image imagetools code emoticons charmap',
+        toolbar: 'formatselect | bold italic underline'
-          toolbar: 'undo redo'
+          + ' | link blockquote openedx_code image'
-                      + ' | formatselect | bold italic underline'
+          + ' | bullist numlist outdent indent'
-                      + ' | link blockquote openedx_code image'
+          + ' | removeformat'
-                      + ' | bullist numlist outdent indent'
+          + ' | openedx_html'
-                      + ' | removeformat'
+          + ' | undo redo',
-                      + ' | openedx_html'
+        content_css: false,
-                      + ' | emoticons'
+        content_style: contentStyle,
-                      + ' | charmap',
+        body_class: 'm-2',
-          content_css: false,
+        default_link_target: '_blank',
-          content_style: contentStyle,
+        target_list: false,
-          body_class: 'm-2 text-editor',
+        images_upload_handler: uploadHandler,
-          default_link_target: '_blank',
+        setup,
-          target_list: false,
+      }}
-          images_upload_handler: uploadHandler,
+      {...props}
-          setup,
+    />
-        }}
-        {...props}
-      />
-      <AlertModal
-        title={intl.formatMessage(messages.imageWarningModalTitle)}
-        isOpen={showImageWarning}
-        onClose={() => setShowImageWarning(false)}
-        isBlocking
-        footerNode={(
-          <ActionRow>
-            <Button variant="danger" onClick={() => setShowImageWarning(false)}>
-              {intl.formatMessage(messages.imageWarningDismissButton)}
-            </Button>
-          </ActionRow>
-                )}
-      >
-        <p>
-          {intl.formatMessage(messages.imageWarningMessage)}
-        </p>
-      </AlertModal>
-    </>
-
   );
 }

src/components/icons/InsertLink.jsx

@@ -1,20 +0,0 @@
-import React from 'react';
-
-export default function InsertLink() {
-  return (
-    <svg
-      xmlns="http://www.w3.org/2000/svg"
-      width="24"
-      height="24"
-      fill="none"
-      viewBox="0 0 24 24"
-    >
-      <path
-        fill="currentColor"
-        fillRule="evenodd"
-        d="M3.9 12c0-1.71 1.39-3.1 3.1-3.1h4V7H7c-2.76 0-5 2.24-5 5s2.24 5 5 5h4v-1.9H7c-1.71 0-3.1-1.39-3.1-3.1zM8 13h8v-2H8v2zm9-6h-4v1.9h4c1.71 0 3.1 1.39 3.1 3.1s-1.39 3.1-3.1 3.1h-4V17h4c2.76 0 5-2.24 5-5s-2.24-5-5-5z"
-        clipRule="evenodd"
-      />
-    </svg>
-  );
-}

src/components/icons/Issue.jsx

@@ -1,26 +0,0 @@
-import React from 'react';
-
-export default function Issue() {
-  return (
-    <svg
-      xmlns="http://www.w3.org/2000/svg"
-      width="28"
-      height="28"
-      fill="none"
-      viewBox="0 0 28 28"
-    >
-      <path
-        fill="#F2F0EF"
-        d="M0 14C0 6.268 6.268 0 14 0s14 6.268 14 14-6.268 14-14 14S0 21.732 0 14z"
-      />
-      <path
-        fill="#2D494E"
-        d="M14 2.333C7.56 2.333 2.333 7.56 2.333 14c0 6.44 5.227 11.667 11.667 11.667 6.44 0 11.667-5.227 11.667-11.667C25.667 7.56 20.44 2.334 14 2.334z"
-      />
-      <path
-        fill="#fff"
-        d="M12.833 22.167h2.334v-2.334h-2.334v2.334zM16.532 14.198l1.05-1.073a3.713 3.713 0 001.085-2.625A4.665 4.665 0 0014 5.833 4.665 4.665 0 009.333 10.5h2.334A2.34 2.34 0 0114 8.167a2.34 2.34 0 012.333 2.333c0 .642-.256 1.225-.688 1.645l-1.447 1.47a4.696 4.696 0 00-1.365 3.302v.583h2.334c0-1.75.525-2.45 1.365-3.302z"
-      />
-    </svg>
-  );
-}

src/components/icons/People.jsx

@@ -1,18 +0,0 @@
-import React from 'react';
-
-export default function People() {
-  return (
-    <svg
-      xmlns="http://www.w3.org/2000/svg"
-      width="16"
-      height="16"
-      fill="none"
-      viewBox="0 0 16 16"
-    >
-      <path
-        fill="#707070"
-        d="M11.072 7.332a1.992 1.992 0 001.993-2 1.997 1.997 0 10-3.993 0c0 1.107.893 2 2 2zm-5.334 0a1.992 1.992 0 001.994-2 1.997 1.997 0 10-3.993 0c0 1.107.893 2 2 2zm0 1.333c-1.553 0-4.666.78-4.666 2.334v1.666h9.333V11c0-1.554-3.113-2.334-4.667-2.334zm5.334 0c-.194 0-.414.014-.647.034.773.56 1.313 1.313 1.313 2.3v1.666h4V11c0-1.554-3.113-2.334-4.666-2.334z"
-      />
-    </svg>
-  );
-}

src/components/icons/PushPin.jsx

@@ -1,20 +0,0 @@
-import React from 'react';
-
-export default function PushPin() {
-  return (
-    <svg
-      xmlns="http://www.w3.org/2000/svg"
-      width="24"
-      height="24"
-      fill="none"
-      viewBox="0 0 24 24"
-    >
-      <path
-        fill="currentColor"
-        fillRule="evenodd"
-        d="M16 9V4H18V2H6V4H8V9C8 10.66 6.66 12 5 12V14H10.97V21L11.97 22L12.97 21V14H19V12C17.34 12 16 10.66 16 9Z"
-        clipRule="evenodd"
-      />
-    </svg>
-  );
-}

src/components/icons/Question.jsx

@@ -1,26 +0,0 @@
-import React from 'react';
-
-export default function Question() {
-  return (
-    <svg
-      xmlns="http://www.w3.org/2000/svg"
-      width="28"
-      height="28"
-      fill="none"
-      viewBox="0 0 28 28"
-    >
-      <path
-        fill="#fff"
-        d="M0 14.001c0-7.732 6.268-14 14-14s14 6.268 14 14-6.268 14-14 14-14-6.268-14-14z"
-      />
-      <path
-        fill="#2D494E"
-        d="M14 2.334c-6.44 0-11.667 5.227-11.667 11.667 0 6.44 5.227 11.667 11.667 11.667 6.44 0 11.666-5.227 11.666-11.667 0-6.44-5.226-11.667-11.666-11.667z"
-      />
-      <path
-        fill="#fff"
-        d="M12.833 22.168h2.333v-2.334h-2.333v2.334zM16.531 14.2l1.05-1.074a3.712 3.712 0 001.085-2.625A4.665 4.665 0 0014 5.834a4.665 4.665 0 00-4.667 4.667h2.333A2.34 2.34 0 0114 8.168a2.34 2.34 0 012.333 2.333c0 .642-.257 1.225-.688 1.645l-1.447 1.47a4.696 4.696 0 00-1.365 3.302v.583h2.333c0-1.75.525-2.45 1.365-3.302z"
-      />
-    </svg>
-  );
-}

src/components/icons/QuestionAnswer.jsx

@@ -1,18 +0,0 @@
-import React from 'react';
-
-export default function QuestionAnswer() {
-  return (
-    <svg
-      xmlns="http://www.w3.org/2000/svg"
-      width="21"
-      height="20"
-      fill="none"
-      viewBox="0 0 21 20"
-    >
-      <path
-        fill="currentColor"
-        d="M18.737 5h-2.5v7.5H5.404V15h10l3.333 3.333V5zm-4.166 5.833V1.667H2.07v12.5l3.333-3.334h9.166z"
-      />
-    </svg>
-  );
-}

src/components/icons/QuestionAnswerOutline.jsx

@@ -1,18 +0,0 @@
-import React from 'react';
-
-export default function QuestionAnswerOutline() {
-  return (
-    <svg
-      xmlns="http://www.w3.org/2000/svg"
-      width="20"
-      height="20"
-      fill="none"
-      viewBox="0 0 20 20"
-    >
-      <path
-        fill="currentColor"
-        d="M12.6 3.267v6.067H4.08l-.512.512-.502.502v-7.08H12.6zm.867-1.733H2.198a.87.87 0 00-.867.867v12.134L4.8 11.068h8.668a.87.87 0 00.866-.867v-7.8a.87.87 0 00-.867-.867zM17.8 5h-1.733v7.8H4.799v1.734c0 .476.39.867.867.867H15.2l3.467 3.466v-13A.87.87 0 0017.8 5z"
-      />
-    </svg>
-  );
-}

src/components/icons/StarFilled.jsx

@@ -1,18 +0,0 @@
-import React from 'react';
-
-export default function StarFilled() {
-  return (
-    <svg
-      xmlns="http://www.w3.org/2000/svg"
-      width="21"
-      height="20"
-      fill="none"
-      viewBox="0 0 21 20"
-    >
-      <path
-        fill="currentColor"
-        d="M10.404 14.392l5.15 3.108-1.367-5.858 4.55-3.942-5.991-.508-2.342-5.525-2.342 5.525L2.07 7.7l4.55 3.942L5.254 17.5l5.15-3.108z"
-      />
-    </svg>
-  );
-}

src/components/icons/StarOutline.jsx

@@ -1,18 +0,0 @@
-import React from 'react';
-
-export default function StarOutline() {
-  return (
-    <svg
-      xmlns="http://www.w3.org/2000/svg"
-      width="20"
-      height="20"
-      fill="none"
-      viewBox="0 0 20 20"
-    >
-      <path
-        fill="currentColor"
-        d="M18.737 7.7l-5.991-.517-2.342-5.516-2.342 5.525L2.07 7.7l4.55 3.942L5.254 17.5l5.15-3.108 5.15 3.108-1.359-5.858L18.737 7.7zm-8.333 5.133L7.27 14.725l.834-3.567-2.767-2.4 3.65-.316 1.417-3.359 1.425 3.367 3.65.317-2.767 2.4.834 3.566-3.142-1.9z"
-      />
-    </svg>
-  );
-}

src/components/icons/ThumbUpFilled.jsx

@@ -1,18 +0,0 @@
-import React from 'react';
-
-export default function ThumbUpFilled() {
-  return (
-    <svg
-      xmlns="http://www.w3.org/2000/svg"
-      width="21"
-      height="20"
-      fill="none"
-      viewBox="0 0 21 20"
-    >
-      <path
-        fill="currentColor"
-        d="M12.212.833L6.237 6.817V17.5h10.258l3.075-7.167V6.667h-6.925l.934-4.484-1.367-1.35zM1.237 7.5H4.57v10H1.237v-10z"
-      />
-    </svg>
-  );
-}

src/components/icons/ThumbUpOutline.jsx

@@ -1,21 +0,0 @@
-import React from 'react';
-
-export default function ThumbUpOutline() {
-  return (
-    <svg
-      xmlns="http://www.w3.org/2000/svg"
-      width="20"
-      height="20"
-      fill="none"
-      viewBox="0 0 20 20"
-    >
-      <path
-        fill="currentColor"
-        fillRule="evenodd"
-        d="M19.57 6.667v3.666L16.495 17.5H6.238V6.817L12.212.833l1.367 1.35-.934 4.484h6.925zm-11.666.841v8.325h7.492l2.508-5.841V8.333h-7.309l.925-4.45-3.616 3.625z"
-        clipRule="evenodd"
-      />
-      <path fill="currentColor" d="M4.57 17.5H1.237v-10H4.57v10z" />
-    </svg>
-  );
-}

src/components/icons/index.js

@@ -1,11 +0,0 @@
-export { default as InsertLink } from './InsertLink';
-export { default as Issue } from './Issue';
-export { default as People } from './People';
-export { default as PushPin } from './PushPin';
-export { default as Question } from './Question';
-export { default as QuestionAnswer } from './QuestionAnswer';
-export { default as QuestionAnswerOutline } from './QuestionAnswerOutline';
-export { default as StarFilled } from './StarFilled';
-export { default as StarOutline } from './StarOutline';
-export { default as ThumbUpFilled } from './ThumbUpFilled';
-export { default as ThumbUpOutline } from './ThumbUpOutline';

src/components/index.js

@@ -1,3 +1,2 @@
 export { default as PostActionsBar } from '../discussions/posts/post-actions-bar/PostActionsBar';
-export { default as Search } from './Search';
 export { default as TinyMCEEditor } from './TinyMCEEditor';

src/data/constants.js

@@ -45,7 +45,6 @@ export const ContentActions = {
   PIN: 'pinned',
   ENDORSE: 'endorsed',
   CLOSE: 'closed',
-  COPY_LINK: 'copy_link',
   REPORT: 'abuse_flagged',
   DELETE: 'delete',
   FOLLOWING: 'following',
@@ -74,9 +73,9 @@ export const RequestStatus = {
  * @readonly
  * @enum {string}
  */
-export const AvatarOutlineAndLabelColors = {
+export const AvatarBorderAndLabelColors = {
-  Staff: 'staff-color',
+  Staff: 'warning-700',
-  'Community TA': 'TA-color',
+  'Community TA': 'success-700',
 };
 
 /**
@@ -111,7 +110,6 @@ export const PostsStatusFilter = {
   FOLLOWING: 'statusFollowing',
   REPORTED: 'statusReported',
   UNANSWERED: 'statusUnanswered',
-  UNRESPONDED: 'statusUnresponded',
 };
 
 /**
@@ -134,7 +132,17 @@ export const TopicOrdering = {
 export const LearnersOrdering = {
   BY_FLAG: 'flagged',
   BY_LAST_ACTIVITY: 'activity',
-  BY_RECENCY: 'recency',
+};
+
+/**
+ * Enum for Learner content tabs
+ * @readonly
+ * @enum {string}
+ */
+export const LearnerTabs = {
+  POSTS: 'posts',
+  COMMENTS: 'comments',
+  RESPONSES: 'responses',
 };
 
 /**
@@ -154,7 +162,12 @@ export const Routes = {
   },
   LEARNERS: {
     PATH: `${BASE_PATH}/learners`,
-    POSTS: `${BASE_PATH}/learners/:learnerUsername/posts(/:postId)?`,
+    LEARNER: `${BASE_PATH}/learners/:learnerUsername`,
+    TABS: {
+      posts: `${BASE_PATH}/learners/:learnerUsername/${LearnerTabs.POSTS}`,
+      responses: `${BASE_PATH}/learners/:learnerUsername/${LearnerTabs.RESPONSES}`,
+      comments: `${BASE_PATH}/learners/:learnerUsername/${LearnerTabs.COMMENTS}`,
+    },
   },
   POSTS: {
     PATH: `${BASE_PATH}/topics/:topicId`,
@@ -170,7 +183,6 @@ export const Routes = {
       `${BASE_PATH}/topics/:topicId/posts/:postId/edit`,
       `${BASE_PATH}/posts/:postId/edit`,
       `${BASE_PATH}/my-posts/:postId/edit`,
-      `${BASE_PATH}/learners/:learnerUsername/posts/:postId/edit`,
     ],
   },
   COMMENTS: {
@@ -179,7 +191,6 @@ export const Routes = {
       `${BASE_PATH}/topics/:topicId/posts/:postId`,
       `${BASE_PATH}/posts/:postId`,
       `${BASE_PATH}/my-posts/:postId`,
-      `${BASE_PATH}/learners/:learnerUsername/posts/:postId`,
     ],
     PAGE: `${BASE_PATH}/:page`,
     PAGES: {
@@ -187,7 +198,6 @@ export const Routes = {
       topics: `${BASE_PATH}/topics/:topicId/posts/:postId`,
       posts: `${BASE_PATH}/posts/:postId`,
       'my-posts': `${BASE_PATH}/my-posts/:postId`,
-      learners: `${BASE_PATH}/learners/:learnerUsername/posts/:postId`,
     },
   },
   TOPICS: {
@@ -203,20 +213,10 @@ export const Routes = {
   },
 };
 
-export const PostsPages = {
-  category: `${BASE_PATH}/category/:category/posts`,
-  topics: `${BASE_PATH}/topics/:topicId/posts`,
-  posts: `${BASE_PATH}/posts`,
-  'my-posts': `${BASE_PATH}/my-posts`,
-  learners: `${BASE_PATH}/learners/:learnerUsername/posts`,
-};
-
 export const ALL_ROUTES = []
   .concat([Routes.TOPICS.CATEGORY_POST, Routes.TOPICS.CATEGORY])
   .concat(Routes.COMMENTS.PATH)
   .concat(Routes.TOPICS.PATH)
   .concat([Routes.POSTS.ALL_POSTS, Routes.POSTS.MY_POSTS])
-  .concat([Routes.LEARNERS.POSTS, Routes.LEARNERS.PATH])
+  .concat([Routes.LEARNERS.LEARNER, Routes.LEARNERS.PATH])
   .concat([Routes.DISCUSSIONS.PATH]);
-
-export const MAX_UPLOAD_FILE_SIZE = 1024;

src/data/redux.test.js

@@ -8,7 +8,6 @@ import { initializeStore } from '../store';
 import { executeThunk } from '../test-utils';
 import { getBlocksAPIResponse } from './__factories__';
 import { blocksAPIURL } from './api';
-import { RequestStatus } from './constants';
 import { fetchCourseBlocks } from './thunks';
 
 const courseId = 'course-v1:edX+DemoX+Demo_Course';
@@ -36,7 +35,7 @@ describe('Course blocks data layer tests', () => {
     axiosMock.reset();
   });
 
-  it('successfully processes block data', async () => {
+  test('successfully processes block data', async () => {
     axiosMock.onGet(blocksAPIURL)
       .reply(200, getBlocksAPIResponse());
 
@@ -78,29 +77,4 @@ describe('Course blocks data layer tests', () => {
         },
       );
   });
-
-  it('handles network error', async () => {
-    axiosMock.onGet(blocksAPIURL).networkError();
-
-    await executeThunk(fetchCourseBlocks(courseId, 'test-user'), store.dispatch, store.getState);
-
-    expect(store.getState().blocks.status)
-      .toBe(RequestStatus.FAILED);
-  });
-  it('handles network timeout', async () => {
-    axiosMock.onGet(blocksAPIURL).timeout();
-
-    await executeThunk(fetchCourseBlocks(courseId, 'test-user'), store.dispatch, store.getState);
-
-    expect(store.getState().blocks.status)
-      .toBe(RequestStatus.FAILED);
-  });
-  it('handles access denied', async () => {
-    axiosMock.onGet(blocksAPIURL).reply(403, {});
-
-    await executeThunk(fetchCourseBlocks(courseId, 'test-user'), store.dispatch, store.getState);
-
-    expect(store.getState().blocks.status)
-      .toBe(RequestStatus.DENIED);
-  });
 });

src/data/selectors.js

@@ -2,7 +2,7 @@
 
 import { createSelector } from '@reduxjs/toolkit';
 
-import { selectDiscussionProvider, selectGroupAtSubsection } from '../discussions/data/selectors';
+import { selectDiscussionProvider } from '../discussions/data/selectors';
 import { DiscussionProvider } from './constants';
 
 export const selectTopicContext = (topicId) => (state) => state.blocks.topics[topicId];
@@ -14,18 +14,6 @@ export const selectorForUnitSubsection = createSelector(
   blocks => key => blocks[blocks[key]?.parent],
 );
 
-// If subsection grouping is enabled, and the current selection is a unit, then get the current subsection.
-export const selectCurrentCategoryGrouping = createSelector(
-  selectDiscussionProvider,
-  selectGroupAtSubsection,
-  selectBlocks,
-  (provider, groupAtSubsection, blocks) => blockId => (
-    (provider !== 'openedx' || !groupAtSubsection || blocks[blockId]?.type !== 'vertical')
-      ? blockId
-      : blocks[blockId].parent
-  ),
-);
-
 export const selectChapters = (state) => state.blocks.chapters;
 export const selectTopicsUnderCategory = createSelector(
   selectDiscussionProvider,
@@ -44,10 +32,4 @@ export const selectSequences = createSelector(
   (chapterIds, blocks) => chapterIds?.flatMap(cId => blocks[cId].children.map(seqId => blocks[seqId])) || [],
 );
 
-export const selectArchivedTopics = createSelector(
-  state => state.topics.topics,
-  state => state.topics.archivedIds || [],
-  (topics, ids) => ids.map(id => topics[id]),
-);
-
 export const selectTopicIds = () => (state) => state.blocks.chapters;

src/data/thunks.js

@@ -58,21 +58,19 @@ function normaliseCourseBlocks({
         } else {
           blocks[verticalId].children?.forEach(discussionId => {
             const discussion = camelCaseObject(blocks[discussionId]);
-            const { topicId } = discussion.studentViewData || {};
+            const { topicId } = discussion.studentViewData;
-            if (topicId) {
+            blockData[discussionId] = discussion;
-              blockData[discussionId] = discussion;
+            // Add this topic id to the list of topics for the current chapter, sequential, and vertical
-              // Add this topic id to the list of topics for the current chapter, sequential, and vertical
+            chapterData.topics.push(topicId);
-              chapterData.topics.push(topicId);
+            blockData[sequentialId].topics.push(topicId);
-              blockData[sequentialId].topics.push(topicId);
+            blockData[verticalId].topics.push(topicId);
-              blockData[verticalId].topics.push(topicId);
+            // Store the topic's context in the course in a map
-              // Store the topic's context in the course in a map
+            topics[topicId] = {
-              topics[topicId] = {
+              chapterName: blockData[chapterId].displayName,
-                chapterName: blockData[chapterId].displayName,
+              verticalName: blockData[sequentialId].displayName,
-                verticalName: blockData[sequentialId].displayName,
+              unitName: blockData[verticalId].displayName,
-                unitName: blockData[verticalId].displayName,
+              unitLink: blockData[verticalId].lmsWebUrl,
-                unitLink: blockData[verticalId].lmsWebUrl,
+            };
-              };
-            }
           });
         }
       });

src/discussions/comments/CommentsView.jsx

@@ -1,9 +1,10 @@
-import React, { useEffect, useMemo } from 'react';
+import React, { useEffect } from 'react';
 import PropTypes from 'prop-types';
 
 import { useDispatch, useSelector } from 'react-redux';
 import { useParams } from 'react-router';
 
+import { ensureConfig, getConfig } from '@edx/frontend-platform';
 import { injectIntl, intlShape } from '@edx/frontend-platform/i18n';
 import { Button, Spinner } from '@edx/paragon';
 
@@ -11,23 +12,27 @@ import { EndorsementStatus, ThreadType } from '../../data/constants';
 import { useDispatchWithState } from '../../data/hooks';
 import { Post } from '../posts';
 import { selectThread } from '../posts/data/selectors';
-import { fetchThread, markThreadAsRead } from '../posts/data/thunks';
+import { markThreadAsRead } from '../posts/data/thunks';
-import { filterPosts } from '../utils';
 import { selectThreadComments, selectThreadCurrentPage, selectThreadHasMorePages } from './data/selectors';
 import { fetchThreadComments } from './data/thunks';
 import { Comment, ResponseEditor } from './comment';
 import messages from './messages';
 
+ensureConfig(['POST_MARK_AS_READ_DELAY'], 'Comment thread view');
+
 function usePost(postId) {
   const dispatch = useDispatch();
   const thread = useSelector(selectThread(postId));
-
   useEffect(() => {
-    if (thread && !thread.read) {
+    const markReadTimer = setTimeout(() => {
-      dispatch(markThreadAsRead(postId));
+      if (thread && !thread.read) {
-    }
+        dispatch(markThreadAsRead(postId));
+      }
+    }, getConfig().POST_MARK_AS_READ_DELAY);
+    return () => {
+      clearTimeout(markReadTimer);
+    };
   }, [postId]);
-
   return thread;
 }
 
@@ -59,7 +64,6 @@ function DiscussionCommentsView({
   postId,
   intl,
   endorsed,
-  isClosed,
 }) {
   const {
     comments,
@@ -67,56 +71,41 @@ function DiscussionCommentsView({
     isLoading,
     handleLoadMoreResponses,
   } = usePostComments(postId, endorsed);
-  const sortedComments = useMemo(() => [...filterPosts(comments, 'endorsed'),
-    ...filterPosts(comments, 'unendorsed')], [comments]);
-
   return (
-    <>
+    <div className="m-3">
-      {((hasMorePages && isLoading) || !isLoading)
+      <div className="my-3">
-      && (
-      <div className="mx-4 text-primary-700" role="heading" aria-level="2" style={{ lineHeight: '28px' }}>
         {endorsed === EndorsementStatus.ENDORSED
-          ? intl.formatMessage(messages.endorsedResponseCount, { num: sortedComments.length })
+          ? intl.formatMessage(messages.endorsedResponseCount, { num: comments.length })
-          : intl.formatMessage(messages.responseCount, { num: sortedComments.length })}
+          : intl.formatMessage(messages.responseCount, { num: comments.length })}
       </div>
-      )}
+      {comments.map(comment => (
+        <Comment comment={comment} key={comment.id} postType={postType} />
+      ))}
 
-      <div className="mx-4" role="list">
+      {hasMorePages && !isLoading && (
-        {sortedComments.map(comment => (
+        <Button
-          <Comment comment={comment} key={comment.id} postType={postType} isClosedPost={isClosed} />
+          onClick={handleLoadMoreResponses}
-        ))}
+          variant="link"
-        {hasMorePages && !isLoading && (
+          block="true"
-          <Button
+          className="card p-4"
-            onClick={handleLoadMoreResponses}
+          data-testid="load-more-comments"
-            variant="link"
+        >
-            block="true"
+          {intl.formatMessage(messages.loadMoreResponses)}
-            className="card p-4 mb-4 font-weight-500 font-size-14"
+        </Button>
-            style={{
+      )}
-              lineHeight: '20px',
+      {isLoading
-            }}
-            data-testid="load-more-comments"
-          >
-            {intl.formatMessage(messages.loadMoreResponses)}
-          </Button>
-        )}
-        {isLoading
         && (
           <div className="card my-4 p-4 d-flex align-items-center">
             <Spinner animation="border" variant="primary" />
           </div>
         )}
-        {!!sortedComments.length && !isClosed
+    </div>
-          && <ResponseEditor postId={postId} addWrappingDiv />}
-      </div>
-    </>
-
   );
 }
 
 DiscussionCommentsView.propTypes = {
   postId: PropTypes.string.isRequired,
   postType: PropTypes.string.isRequired,
-  isClosed: PropTypes.bool.isRequired,
   intl: intlShape.isRequired,
   endorsed: PropTypes.oneOf([
     EndorsementStatus.ENDORSED, EndorsementStatus.UNENDORSED, EndorsementStatus.DISCUSSION,
@@ -126,18 +115,16 @@ DiscussionCommentsView.propTypes = {
 function CommentsView({ intl }) {
   const { postId } = useParams();
   const thread = usePost(postId);
-  const dispatch = useDispatch();
   if (!thread) {
-    dispatch(fetchThread(postId, true));
     return (
       <Spinner animation="border" variant="primary" data-testid="loading-indicator" />
     );
   }
   return (
     <>
-      <div className="discussion-comments d-flex flex-column m-4 p-4.5 card">
+      <div className="discussion-comments d-flex flex-column mt-3 mb-0 mx-3 p-4 card">
         <Post post={thread} />
-        {!thread.closed && <ResponseEditor postId={postId} /> }
+        <ResponseEditor postId={postId} />
       </div>
       {thread.type === ThreadType.DISCUSSION
         && (
@@ -146,7 +133,6 @@ function CommentsView({ intl }) {
           intl={intl}
           postType={thread.type}
           endorsed={EndorsementStatus.DISCUSSION}
-          isClosed={thread.closed}
         />
         )}
       {thread.type === ThreadType.QUESTION && (
@@ -156,14 +142,12 @@ function CommentsView({ intl }) {
             intl={intl}
             postType={thread.type}
             endorsed={EndorsementStatus.ENDORSED}
-            isClosed={thread.closed}
           />
           <DiscussionCommentsView
             postId={postId}
             intl={intl}
             postType={thread.type}
             endorsed={EndorsementStatus.UNENDORSED}
-            isClosed={thread.closed}
           />
         </>
       )}

src/discussions/comments/CommentsView.test.jsx

@@ -12,7 +12,6 @@ import { AppProvider } from '@edx/frontend-platform/react';
 
 import { initializeStore } from '../../store';
 import { executeThunk } from '../../test-utils';
-import { DiscussionContext } from '../common/context';
 import { courseConfigApiUrl } from '../data/api';
 import { fetchCourseConfig } from '../data/thunks';
 import DiscussionContent from '../discussions-home/DiscussionContent';
@@ -82,20 +81,16 @@ function renderComponent(postId) {
   render(
     <IntlProvider locale="en">
       <AppProvider store={store}>
-        <DiscussionContext.Provider
+        <MemoryRouter initialEntries={[`/${courseId}/posts/${postId}`]}>
-          value={{ courseId }}
+          <DiscussionContent />
-        >
+          <Route
-          <MemoryRouter initialEntries={[`/${courseId}/posts/${postId}`]}>
+            path="*"
-            <DiscussionContent />
+            render={({ location }) => {
-            <Route
+              testLocation = location;
-              path="*"
+              return null;
-              render={({ location }) => {
+            }}
-                testLocation = location;
+          />
-                return null;
+        </MemoryRouter>
-              }}
-            />
-          </MemoryRouter>
-        </DiscussionContext.Provider>
       </AppProvider>
     </IntlProvider>,
   );
@@ -160,10 +155,9 @@ describe('CommentsView', () => {
     it('should show and hide the editor', async () => {
       renderComponent(discussionPostId);
       await waitFor(() => screen.findByText('comment number 1', { exact: false }));
-      const addResponseButtons = screen.getAllByRole('button', { name: /add a response/i });
       await act(async () => {
         fireEvent.click(
-          addResponseButtons[0],
+          screen.getByRole('button', { name: /add a response/i }),
         );
       });
       expect(screen.queryByTestId('tinymce-editor')).toBeInTheDocument();
@@ -172,17 +166,15 @@ describe('CommentsView', () => {
       });
       expect(screen.queryByTestId('tinymce-editor')).not.toBeInTheDocument();
     });
-
     it('should allow posting a response', async () => {
       renderComponent(discussionPostId);
       await waitFor(() => screen.findByText('comment number 1', { exact: false }));
-      const responseButtons = screen.getAllByRole('button', { name: /add a response/i });
       await act(async () => {
         fireEvent.click(
-          responseButtons[0],
+          screen.getByRole('button', { name: /add a response/i }),
         );
       });
-      await act(() => {
+      act(() => {
         fireEvent.change(screen.getByTestId('tinymce-editor'), { target: { value: 'testing123' } });
       });
 
@@ -194,13 +186,6 @@ describe('CommentsView', () => {
       expect(screen.queryByTestId('tinymce-editor')).not.toBeInTheDocument();
       await waitFor(async () => expect(await screen.findByText('testing123', { exact: false })).toBeInTheDocument());
     });
-
-    it('should not allow posting a response on a closed post', async () => {
-      renderComponent(closedPostId);
-      await waitFor(() => screen.findByText('Thread-2', { exact: false }));
-      expect(screen.queryByRole('button', { name: /add a response/i })).not.toBeInTheDocument();
-    });
-
     it('should allow posting a comment', async () => {
       renderComponent(discussionPostId);
       await waitFor(() => screen.findByText('comment number 1', { exact: false }));
@@ -221,17 +206,6 @@ describe('CommentsView', () => {
       expect(screen.queryByTestId('tinymce-editor')).not.toBeInTheDocument();
       await waitFor(async () => expect(await screen.findByText('testing123', { exact: false })).toBeInTheDocument());
     });
-
-    it('should not allow posting a comment on a closed post', async () => {
-      renderComponent(closedPostId);
-      await waitFor(() => screen.findByText('thread-2', { exact: false }));
-      await act(async () => {
-        expect(
-          screen.queryByRole('button', { name: /add a comment/i }),
-        ).not.toBeInTheDocument();
-      });
-    });
-
     it('should allow editing an existing comment', async () => {
       renderComponent(discussionPostId);
       await waitFor(() => screen.findByText('comment number 1', { exact: false }));
@@ -257,7 +231,7 @@ describe('CommentsView', () => {
 
     async function setupCourseConfig(reasonCodesEnabled = true) {
       axiosMock.onGet(`${courseConfigApiUrl}${courseId}/`).reply(200, {
-        has_moderation_privileges: true,
+        user_is_privileged: true,
         reason_codes_enabled: reasonCodesEnabled,
         editReasons: [
           { code: 'reason-1', label: 'reason 1' },

src/discussions/comments/comment-icons/CommentIcons.jsx

@@ -4,18 +4,16 @@ import PropTypes from 'prop-types';
 import { useDispatch } from 'react-redux';
 import * as timeago from 'timeago.js';
 
-import { injectIntl } from '@edx/frontend-platform/i18n';
+import { injectIntl, intlShape } from '@edx/frontend-platform/i18n';
 
-import timeLocale from '../../common/time-locale';
 import LikeButton from '../../posts/post/LikeButton';
 import { editComment } from '../data/thunks';
 
 function CommentIcons({
   comment,
+  intl,
 }) {
   const dispatch = useDispatch();
-  timeago.register('time-locale', timeLocale);
-
   const handleLike = () => dispatch(editComment(comment.id, { voted: !comment.voted }));
   return (
     <div className="d-flex flex-row align-items-center">
@@ -24,8 +22,8 @@ function CommentIcons({
         onClick={handleLike}
         voted={comment.voted}
       />
-      <div className="d-flex flex-fill text-gray-500 justify-content-end" title={comment.createdAt}>
+      <div className="d-flex flex-fill text-gray-500 justify-content-end mt-2" title={comment.createdAt}>
-        {timeago.format(comment.createdAt, 'time-locale')}
+        {timeago.format(comment.createdAt, intl.locale)}
       </div>
     </div>
   );
@@ -39,6 +37,7 @@ CommentIcons.propTypes = {
     voted: PropTypes.bool,
     createdAt: PropTypes.string,
   }).isRequired,
+  intl: intlShape.isRequired,
 };
 
 export default injectIntl(CommentIcons);

src/discussions/comments/comment/Comment.jsx

@@ -7,12 +7,9 @@ import { useDispatch, useSelector } from 'react-redux';
 import { injectIntl, intlShape } from '@edx/frontend-platform/i18n';
 import { Button, useToggle } from '@edx/paragon';
 
-import HTMLLoader from '../../../components/HTMLLoader';
 import { ContentActions } from '../../../data/constants';
-import { AlertBanner, DeleteConfirmation, EndorsedAlertBanner } from '../../common';
+import { AlertBanner, DeleteConfirmation } from '../../common';
-import { selectBlackoutDate } from '../../data/selectors';
 import { fetchThread } from '../../posts/data/thunks';
-import { inBlackoutDateRange } from '../../utils';
 import CommentIcons from '../comment-icons/CommentIcons';
 import { selectCommentCurrentPage, selectCommentHasMorePages, selectCommentResponses } from '../data/selectors';
 import { editComment, fetchCommentResponses, removeComment } from '../data/thunks';
@@ -26,7 +23,6 @@ function Comment({
   postType,
   comment,
   showFullThread = true,
-  isClosedPost,
   intl,
 }) {
   const dispatch = useDispatch();
@@ -38,113 +34,94 @@ function Comment({
   const [isReplying, setReplying] = useState(false);
   const hasMorePages = useSelector(selectCommentHasMorePages(comment.id));
   const currentPage = useSelector(selectCommentCurrentPage(comment.id));
-  const blackoutDateRange = useSelector(selectBlackoutDate);
-
   useEffect(() => {
     // If the comment has a parent comment, it won't have any children, so don't fetch them.
     if (hasChildren && !currentPage && showFullThread) {
       dispatch(fetchCommentResponses(comment.id, { page: 1 }));
     }
   }, [comment.id]);
-
   const actionHandlers = {
     [ContentActions.EDIT_CONTENT]: () => setEditing(true),
     [ContentActions.ENDORSE]: async () => {
-      await dispatch(editComment(comment.id, { endorsed: !comment.endorsed }, ContentActions.ENDORSE));
+      await dispatch(editComment(comment.id, { endorsed: !comment.endorsed }));
       await dispatch(fetchThread(comment.threadId));
     },
     [ContentActions.DELETE]: showDeleteConfirmation,
     [ContentActions.REPORT]: () => dispatch(editComment(comment.id, { flagged: !comment.abuseFlagged })),
   };
-
   const handleLoadMoreComments = () => (
     dispatch(fetchCommentResponses(comment.id, { page: currentPage + 1 }))
   );
+  const commentClasses = classNames('d-flex flex-column card', { 'my-3': showFullThread });
 
   return (
-    <div className={classNames({ 'py-2 my-3': showFullThread })}>
+    <div className={commentClasses} data-testid={`comment-${comment.id}`}>
-      <div className="d-flex flex-column card" data-testid={`comment-${comment.id}`} role="listitem">
+      <DeleteConfirmation
-        <DeleteConfirmation
+        isOpen={isDeleting}
-          isOpen={isDeleting}
+        title={intl.formatMessage(messages.deleteResponseTitle)}
-          title={intl.formatMessage(messages.deleteResponseTitle)}
+        description={intl.formatMessage(messages.deleteResponseDescription)}
-          description={intl.formatMessage(messages.deleteResponseDescription)}
+        onClose={hideDeleteConfirmation}
-          onClose={hideDeleteConfirmation}
+        onDelete={() => {
-          onDelete={() => {
+          dispatch(removeComment(comment.id));
-            dispatch(removeComment(comment.id));
+          hideDeleteConfirmation();
-            hideDeleteConfirmation();
+        }}
-          }}
+      />
+      <AlertBanner postType={postType} content={comment} />
+      <div className="d-flex flex-column p-4">
+        <CommentHeader comment={comment} actionHandlers={actionHandlers} postType={postType} />
+        {isEditing
+          ? (
+            <CommentEditor comment={comment} onCloseEditor={() => setEditing(false)} />
+          )
+          // eslint-disable-next-line react/no-danger
+          : <div className="comment-body px-2" dangerouslySetInnerHTML={{ __html: comment.renderedBody }} />}
+        <CommentIcons
+          comment={comment}
+          following={comment.following}
+          onLike={() => dispatch(editComment(comment.id, { voted: !comment.voted }))}
+          createdAt={comment.createdAt}
         />
-        <EndorsedAlertBanner postType={postType} content={comment} />
+        <div className="d-flex my-2 flex-column">
-        <div className="d-flex flex-column p-4.5">
+          {/* Pass along intl since component used here is the one before it's injected with `injectIntl` */}
-          <AlertBanner content={comment} />
+          {inlineReplies.map(inlineReply => (
-          <CommentHeader comment={comment} actionHandlers={actionHandlers} postType={postType} />
+            <Reply
-          {isEditing
+              reply={inlineReply}
-            ? (
+              postType={postType}
-              <CommentEditor comment={comment} onCloseEditor={() => setEditing(false)} formClasses="pt-3" />
+              key={inlineReply.id}
-            )
+              intl={intl}
-            : <HTMLLoader cssClassName="comment-body pt-4 text-primary-500" componentId="comment" htmlNode={comment.renderedBody} />}
+            />
-          <CommentIcons
+          ))}
-            comment={comment}
+        </div>
-            following={comment.following}
+        {hasMorePages && (
-            onLike={() => dispatch(editComment(comment.id, { voted: !comment.voted }))}
-            createdAt={comment.createdAt}
-          />
-          <div className="sr-only" role="heading" aria-level="3"> {intl.formatMessage(messages.replies, { count: inlineReplies.length })}</div>
-          <div className="d-flex flex-column" role="list">
-            {/* Pass along intl since component used here is the one before it's injected with `injectIntl` */}
-            {inlineReplies.map(inlineReply => (
-              <Reply
-                reply={inlineReply}
-                postType={postType}
-                key={inlineReply.id}
-                intl={intl}
-              />
-            ))}
-          </div>
-          {hasMorePages && (
           <Button
             onClick={handleLoadMoreComments}
             variant="link"
             block="true"
-            className="mt-4.5 font-size-14 font-style-normal font-family-inter font-weight-500 px-2.5 py-2"
+            className="my-4"
             data-testid="load-more-comments-responses"
-            style={{
-              lineHeight: '20px',
-            }}
           >
-            {intl.formatMessage(messages.loadMoreComments)}
+            {intl.formatMessage(messages.loadMoreResponses)}
           </Button>
+        )}
+        {!isNested && showFullThread
+          && (
+            isReplying
+              ? (
+                <CommentEditor
+                  comment={{
+                    threadId: comment.threadId,
+                    parentId: comment.id,
+                  }}
+                  edit={false}
+                  onCloseEditor={() => setReplying(false)}
+                />
+              )
+              : (
+                <Button className="d-flex flex-grow " variant="outline-secondary" onClick={() => setReplying(true)}>
+                  {intl.formatMessage(messages.addComment)}
+                </Button>
+              )
           )}
-          {!isNested && showFullThread && (
-            isReplying ? (
-              <CommentEditor
-                comment={{
-                  threadId: comment.threadId,
-                  parentId: comment.id,
-                }}
-                edit={false}
-                onCloseEditor={() => setReplying(false)}
-              />
-            ) : (
-              <>
-                {(!isClosedPost && !inBlackoutDateRange(blackoutDateRange))
-                  && (
-                    <Button
-                      className="d-flex flex-grow mt-3 py-2 font-size-14"
-                      variant="outline-primary"
-                      style={{
-                        lineHeight: '20px',
-                      }}
-                      onClick={() => setReplying(true)}
-                    >
-                      {intl.formatMessage(messages.addComment)}
-                    </Button>
-                  )}
-              </>
-
-            )
-          )}
-        </div>
       </div>
     </div>
   );
@@ -154,13 +131,11 @@ Comment.propTypes = {
   postType: PropTypes.oneOf(['discussion', 'question']).isRequired,
   comment: commentShape.isRequired,
   showFullThread: PropTypes.bool,
-  isClosedPost: PropTypes.bool,
   intl: intlShape.isRequired,
 };
 
 Comment.defaultProps = {
   showFullThread: true,
-  isClosedPost: false,
 };
 
 export default injectIntl(Comment);

src/discussions/comments/comment/CommentEditor.jsx

@@ -10,15 +10,8 @@ import { AppContext } from '@edx/frontend-platform/react';
 import { Button, Form, StatefulButton } from '@edx/paragon';
 
 import { TinyMCEEditor } from '../../../components';
-import FormikErrorFeedback from '../../../components/FormikErrorFeedback';
-import PostPreviewPane from '../../../components/PostPreviewPane';
 import { useDispatchWithState } from '../../../data/hooks';
-import {
+import { selectModerationSettings, selectUserIsPrivileged } from '../../data/selectors';
-  selectModerationSettings,
-  selectUserHasModerationPrivileges,
-  selectUserIsGroupTa,
-  selectUserIsStaff,
-} from '../../data/selectors';
 import { formikCompatibleHandler, isFormikFieldInvalid } from '../../utils';
 import { addComment, editComment } from '../data/thunks';
 import messages from '../messages';
@@ -28,48 +21,15 @@ function CommentEditor({
   comment,
   onCloseEditor,
   edit,
-  formClasses,
 }) {
-  const editorRef = useRef(null);
   const { authenticatedUser } = useContext(AppContext);
-  const userHasModerationPrivileges = useSelector(selectUserHasModerationPrivileges);
+  const userIsPrivileged = useSelector(selectUserIsPrivileged);
-  const userIsGroupTa = useSelector(selectUserIsGroupTa);
-  const userIsStaff = useSelector(selectUserIsStaff);
   const { reasonCodesEnabled, editReasons } = useSelector(selectModerationSettings);
   const [submitting, dispatch] = useDispatchWithState();
-
+  const editorRef = useRef(null);
-  const canDisplayEditReason = (reasonCodesEnabled && edit
+  const saveUpdatedComment = async (values) => {
-    && (userHasModerationPrivileges || userIsGroupTa || userIsStaff)
-    && comment?.author !== authenticatedUser.username
-  );
-
-  const editReasonCodeValidation = canDisplayEditReason && {
-    editReasonCode: Yup.string().required(intl.formatMessage(messages.editReasonCodeError)),
-  };
-
-  const validationSchema = Yup.object().shape({
-    comment: Yup.string()
-      .required(),
-    ...editReasonCodeValidation,
-  });
-
-  const initialValues = {
-    comment: comment.rawBody,
-    editReasonCode: comment?.lastEdit?.reasonCode || (userIsStaff ? 'violates-guidelines' : ''),
-  };
-
-  const handleCloseEditor = (resetForm) => {
-    resetForm({ values: initialValues });
-    onCloseEditor();
-  };
-
-  const saveUpdatedComment = async (values, { resetForm }) => {
     if (comment.id) {
-      const payload = {
+      await dispatch(editComment(comment.id, values));
-        ...values,
-        editReasonCode: values.editReasonCode || undefined,
-      };
-      await dispatch(editComment(comment.id, payload));
     } else {
       await dispatch(addComment(values.comment, comment.threadId, comment.parentId));
     }
@@ -77,16 +37,22 @@ function CommentEditor({
     if (editorRef.current) {
       editorRef.current.plugins.autosave.removeDraft();
     }
-    handleCloseEditor(resetForm);
+    onCloseEditor();
   };
   // The editorId is used to autosave contents to localstorage. This format means that the autosave is scoped to
   // the current comment id, or the current comment parent or the curren thread.
   const editorId = `comment-editor-${comment.id || comment.parentId || comment.threadId}`;
-
   return (
     <Formik
-      initialValues={initialValues}
+      initialValues={{ comment: comment.rawBody }}
-      validationSchema={validationSchema}
+      validationSchema={Yup.object()
+        .shape({
+          comment: Yup.string()
+            .required(),
+          editReasonCode: Yup.string()
+            .nullable()
+            .default(undefined),
+        })}
       onSubmit={saveUpdatedComment}
     >
       {({
@@ -96,19 +62,17 @@ function CommentEditor({
         handleSubmit,
         handleBlur,
         handleChange,
-        resetForm,
       }) => (
-        <Form onSubmit={handleSubmit} className={formClasses}>
+        <Form onSubmit={handleSubmit}>
-          {canDisplayEditReason && (
+          {(reasonCodesEnabled
-            <Form.Group
+            && userIsPrivileged
-              isInvalid={isFormikFieldInvalid('editReasonCode', {
+            && comment.author !== authenticatedUser.username
-                errors,
+            && edit
-                touched,
+          ) && (
-              })}
+            <Form.Group>
-            >
               <Form.Control
                 name="editReasonCode"
-                className="mt-2 mr-0"
+                className="mt-2"
                 as="select"
                 value={values.editReasonCode}
                 onChange={handleChange}
@@ -124,7 +88,6 @@ function CommentEditor({
                   <option key={code} value={code}>{label}</option>
                 ))}
               </Form.Control>
-              <FormikErrorFeedback name="editReasonCode" />
             </Form.Group>
           )}
           <TinyMCEEditor
@@ -148,11 +111,10 @@ function CommentEditor({
                 {intl.formatMessage(messages.commentError)}
               </Form.Control.Feedback>
             )}
-          <PostPreviewPane htmlNode={values.comment} />
           <div className="d-flex py-2 justify-content-end">
             <Button
               variant="outline-primary"
-              onClick={() => handleCloseEditor(resetForm)}
+              onClick={onCloseEditor}
             >
               {intl.formatMessage(messages.cancel)}
             </Button>
@@ -180,17 +142,14 @@ CommentEditor.propTypes = {
     parentId: PropTypes.string,
     rawBody: PropTypes.string,
     author: PropTypes.string,
-    lastEdit: PropTypes.object,
   }).isRequired,
   onCloseEditor: PropTypes.func.isRequired,
   intl: intlShape.isRequired,
   edit: PropTypes.bool,
-  formClasses: PropTypes.string,
 };
 
 CommentEditor.defaultProps = {
   edit: true,
-  formClasses: '',
 };
 
 export default injectIntl(CommentEditor);

src/discussions/comments/comment/CommentHeader.jsx

@@ -1,17 +1,15 @@
 import React from 'react';
 import PropTypes from 'prop-types';
 
-import classNames from 'classnames';
 import { useSelector } from 'react-redux';
 
 import { injectIntl } from '@edx/frontend-platform/i18n';
 import { Avatar, Icon } from '@edx/paragon';
 import { CheckCircle, Verified } from '@edx/paragon/icons';
 
-import { AvatarOutlineAndLabelColors, ThreadType } from '../../../data/constants';
+import { AvatarBorderAndLabelColors, ThreadType } from '../../../data/constants';
 import { AuthorLabel } from '../../common';
 import ActionsDropdown from '../../common/ActionsDropdown';
-import { useAlertBannerVisible } from '../../data/hooks';
 import { selectAuthorAvatars } from '../../posts/data/selectors';
 import { commentShape } from './proptypes';
 
@@ -21,37 +19,22 @@ function CommentHeader({
   actionHandlers,
 }) {
   const authorAvatars = useSelector(selectAuthorAvatars(comment.author));
-  const colorClass = AvatarOutlineAndLabelColors[comment.authorLabel];
+  const colorClass = AvatarBorderAndLabelColors[comment.authorLabel];
-  const hasAnyAlert = useAlertBannerVisible(comment);
-
   return (
-    <div className={classNames('d-flex flex-row justify-content-between', {
+    <div className="d-flex flex-row justify-content-between">
-      'mt-2': hasAnyAlert,
-    })}
-    >
       <div className="align-items-center d-flex flex-row">
         <Avatar
-          className={`border-0 ml-0.5 mr-2.5 ${colorClass ? `outline-${colorClass}` : 'outline-anonymous'}`}
+          className={`m-2 ${colorClass && `border-${colorClass}`}`}
+          style={{ borderWidth: '2px' }}
           alt={comment.author}
           src={authorAvatars?.imageUrlSmall}
-          style={{
-            width: '32px',
-            height: '32px',
-          }}
-        />
-        <AuthorLabel
-          author={comment.author}
-          authorLabel={comment.authorLabel}
-          labelColor={colorClass && `text-${colorClass}`}
-          linkToProfile
         />
+        <AuthorLabel author={comment.author} authorLabel={comment.authorLabel} labelColor={colorClass && `text-${colorClass}`} />
       </div>
       <div className="d-flex align-items-center">
-        <span className="btn-icon btn-icon-sm mr-1 align-items-center">
+        {comment.endorsed && (postType === 'question'
-          {comment.endorsed && (postType === 'question'
+          ? <Icon src={CheckCircle} className="text-success" data-testid="check-icon" />
-            ? <Icon src={CheckCircle} className="text-success" data-testid="check-icon" />
+          : <Icon src={Verified} data-testid="verified-icon" />)}
-            : <Icon src={Verified} className="text-dark-500" data-testid="verified-icon" />)}
-        </span>
         <ActionsDropdown
           commentOrPost={{
             ...comment,

src/discussions/comments/comment/CommentHeader.test.jsx

@@ -7,7 +7,6 @@ import { initializeMockApp } from '@edx/frontend-platform';
 import { AppProvider } from '@edx/frontend-platform/react';
 
 import { initializeStore } from '../../../store';
-import { DiscussionContext } from '../../common/context';
 import CommentHeader from './CommentHeader';
 
 let store;
@@ -16,11 +15,7 @@ function renderComponent(comment, postType, actionHandlers) {
   return render(
     <IntlProvider locale="en">
       <AppProvider store={store}>
-        <DiscussionContext.Provider
+        <CommentHeader comment={comment} postType={postType} actionHandlers={actionHandlers} />
-          value={{ courseId: 'course-v1:edX+TestX+Test_Course' }}
-        >
-          <CommentHeader comment={comment} postType={postType} actionHandlers={actionHandlers} />
-        </DiscussionContext.Provider>
       </AppProvider>
     </IntlProvider>,
   );

src/discussions/comments/comment/Reply.jsx

@@ -7,13 +7,10 @@ import * as timeago from 'timeago.js';
 import { injectIntl, intlShape } from '@edx/frontend-platform/i18n';
 import { Avatar, useToggle } from '@edx/paragon';
 
-import HTMLLoader from '../../../components/HTMLLoader';
+import { AvatarBorderAndLabelColors, ContentActions } from '../../../data/constants';
-import { AvatarOutlineAndLabelColors, ContentActions } from '../../../data/constants';
 import {
   ActionsDropdown, AlertBanner, AuthorLabel, DeleteConfirmation,
 } from '../../common';
-import timeLocale from '../../common/time-locale';
-import { useAlertBannerVisible } from '../../data/hooks';
 import { selectAuthorAvatars } from '../../posts/data/selectors';
 import { editComment, removeComment } from '../data/thunks';
 import messages from '../messages';
@@ -25,26 +22,19 @@ function Reply({
   postType,
   intl,
 }) {
-  timeago.register('time-locale', timeLocale);
   const dispatch = useDispatch();
   const [isEditing, setEditing] = useState(false);
   const [isDeleting, showDeleteConfirmation, hideDeleteConfirmation] = useToggle(false);
   const actionHandlers = {
     [ContentActions.EDIT_CONTENT]: () => setEditing(true),
-    [ContentActions.ENDORSE]: () => dispatch(editComment(
+    [ContentActions.ENDORSE]: () => dispatch(editComment(reply.id, { endorsed: !reply.endorsed })),
-      reply.id,
-      { endorsed: !reply.endorsed },
-      ContentActions.ENDORSE,
-    )),
     [ContentActions.DELETE]: showDeleteConfirmation,
     [ContentActions.REPORT]: () => dispatch(editComment(reply.id, { flagged: !reply.abuseFlagged })),
   };
   const authorAvatars = useSelector(selectAuthorAvatars(reply.author));
-  const colorClass = AvatarOutlineAndLabelColors[reply.authorLabel];
+  const colorClass = AvatarBorderAndLabelColors[reply.authorLabel];
-  const hasAnyAlert = useAlertBannerVisible(reply);
-
   return (
-    <div className="d-flex flex-column mt-4.5" data-testid={`reply-${reply.id}`} role="listitem">
+    <div className="d-flex my-2 flex-column" data-testid={`reply-${reply.id}`}>
       <DeleteConfirmation
         isOpen={isDeleting}
         title={intl.formatMessage(messages.deleteCommentTitle)}
@@ -55,36 +45,22 @@ function Reply({
           hideDeleteConfirmation();
         }}
       />
-
+      <div className="d-flex flex-fill ml-6">
-      {hasAnyAlert && (
+        <AlertBanner postType={null} content={reply} intl={intl} />
-        <div className="d-flex">
+      </div>
-          <div className="d-flex invisible">
-            <Avatar />
-          </div>
-          <div className="w-100">
-            <AlertBanner content={reply} intl={intl} />
-          </div>
-        </div>
-      )}
-
       <div className="d-flex">
-        <div className="d-flex mr-3 mt-2.5">
+
+        <div className="d-flex m-3">
           <Avatar
-            className={`ml-0.5 mt-0.5 border-0 ${colorClass ? `outline-${colorClass}` : 'outline-anonymous'}`}
+            className={`m-2 ${colorClass && `border-${colorClass}`}`}
+            style={{ borderWidth: '2px' }}
             alt={reply.author}
             src={authorAvatars?.imageUrlSmall}
-            style={{
-              width: '32px',
-              height: '32px',
-            }}
           />
         </div>
-        <div
+        <div className="rounded bg-light-300 px-4 py-2 flex-fill">
-          className="bg-light-300 px-4 pb-2 pt-2.5 flex-fill"
+          <div className="d-flex flex-row justify-content-between align-items-center">
-          style={{ borderRadius: '0rem 0.375rem 0.375rem' }}
+            <AuthorLabel author={reply.author} authorLabel={reply.authorLabel} labelColor={colorClass && `text-${colorClass}`} />
-        >
-          <div className="d-flex flex-row justify-content-between align-items-center mb-0.5">
-            <AuthorLabel author={reply.author} authorLabel={reply.authorLabel} labelColor={colorClass && `text-${colorClass}`} linkToProfile />
             <ActionsDropdown
               commentOrPost={{
                 ...reply,
@@ -95,11 +71,13 @@ function Reply({
           </div>
           {isEditing
             ? <CommentEditor comment={reply} onCloseEditor={() => setEditing(false)} />
-            : <HTMLLoader componentId="reply" htmlNode={reply.renderedBody} cssClassName="text-primary-500" />}
+            // eslint-disable-next-line react/no-danger
+            : <div dangerouslySetInnerHTML={{ __html: reply.renderedBody }} />}
         </div>
+
       </div>
       <div className="text-gray-500 align-self-end mt-2" title={reply.createdAt}>
-        {timeago.format(reply.createdAt, 'time-locale')}
+        {timeago.format(reply.createdAt, intl.locale)}
       </div>
     </div>
   );

src/discussions/comments/comment/ResponseEditor.jsx

@@ -1,50 +1,27 @@
-import React, { useEffect, useState } from 'react';
+import React, { useState } from 'react';
 import PropTypes from 'prop-types';
 
-import classNames from 'classnames';
-import { useSelector } from 'react-redux';
-
 import { injectIntl, intlShape } from '@edx/frontend-platform/i18n';
 import { Button } from '@edx/paragon';
 
-import { selectBlackoutDate } from '../../data/selectors';
-import { inBlackoutDateRange } from '../../utils';
 import messages from '../messages';
 import CommentEditor from './CommentEditor';
 
 function ResponseEditor({
   postId,
   intl,
-  addWrappingDiv,
 }) {
   const [addingResponse, setAddingResponse] = useState(false);
-
-  useEffect(() => {
-    setAddingResponse(false);
-  }, [postId]);
-
-  const blackoutDateRange = useSelector(selectBlackoutDate);
-
   return addingResponse
     ? (
-      <div className={classNames({ 'bg-white p-4 mb-4 rounded': addWrappingDiv })}>
+      <CommentEditor
-        <CommentEditor
+        comment={{ threadId: postId }}
-          comment={{ threadId: postId }}
+        edit={false}
-          edit={false}
+        onCloseEditor={() => setAddingResponse(false)}
-          onCloseEditor={() => setAddingResponse(false)}
+      />
-        />
+    ) : (
-      </div>
+      <div className="actions d-flex">
-    )
+        <Button variant="primary" onClick={() => setAddingResponse(true)}>
-    : !inBlackoutDateRange(blackoutDateRange) && (
-      <div className={classNames({ 'mb-4': addWrappingDiv }, 'actions d-flex')}>
-        <Button
-          variant="primary"
-          className="px-2.5 py-2 font-size-14"
-          onClick={() => setAddingResponse(true)}
-          style={{
-            lineHeight: '20px',
-          }}
-        >
           {intl.formatMessage(messages.addResponse)}
         </Button>
       </div>
@@ -54,11 +31,6 @@ function ResponseEditor({
 ResponseEditor.propTypes = {
   postId: PropTypes.string.isRequired,
   intl: intlShape.isRequired,
-  addWrappingDiv: PropTypes.bool,
-};
-
-ResponseEditor.defaultProps = {
-  addWrappingDiv: false,
 };
 
 export default injectIntl(ResponseEditor);

src/discussions/comments/data/api.js

@@ -117,3 +117,29 @@ export async function deleteComment(commentId) {
   await getAuthenticatedHttpClient()
     .delete(url);
 }
+
+/**
+ * Get the comments by a specific user in a course's discussions
+ *
+ * comments = responses + comments in the UI
+ *
+ * @param {string} courseId Course ID for the course
+ * @param {string} username Username of the user
+ * @returns API response in the format
+ *  {
+ *    results: [array of comments],
+ *    pagination: {count, num_pages, next, previous}
+ *  }
+
+ */
+export async function getUserComments(courseId, username, { page }) {
+  const { data } = await getAuthenticatedHttpClient()
+    .get(commentsApiUrl, {
+      params: {
+        course_id: courseId,
+        username,
+        page,
+      },
+    });
+  return data;
+}

src/discussions/comments/data/slices.js

@@ -145,18 +145,6 @@ const commentsSlice = createSlice({
       state.commentsById[payload.id] = payload;
       state.commentDraft = null;
     },
-    updateCommentsList: (state, { payload }) => {
-      const { id: commentId, threadId, endorsed } = payload;
-      const commentAddListtype = endorsed ? EndorsementStatus.ENDORSED : EndorsementStatus.UNENDORSED;
-      const commentRemoveListType = !endorsed ? EndorsementStatus.ENDORSED : EndorsementStatus.UNENDORSED;
-
-      state.commentsInThreads[threadId][commentRemoveListType] = (
-          state.commentsInThreads[threadId]?.[commentRemoveListType]?.filter(item => item !== commentId)
-      );
-      state.commentsInThreads[threadId][commentAddListtype] = [
-        ...state.commentsInThreads[threadId][commentAddListtype], payload.id,
-      ];
-    },
     deleteCommentRequest: (state) => {
       state.postStatus = RequestStatus.IN_PROGRESS;
     },
@@ -201,7 +189,6 @@ export const {
   updateCommentFailed,
   updateCommentRequest,
   updateCommentSuccess,
-  updateCommentsList,
   deleteCommentDenied,
   deleteCommentFailed,
   deleteCommentRequest,

src/discussions/comments/data/thunks.js

@@ -2,7 +2,7 @@
 import { camelCaseObject } from '@edx/frontend-platform';
 import { logError } from '@edx/frontend-platform/logging';
 
-import { ContentActions, EndorsementStatus } from '../../../data/constants';
+import { EndorsementStatus } from '../../../data/constants';
 import { getHttpErrorStatus } from '../../utils';
 import {
   deleteComment, getCommentResponses, getThreadComments, postComment, updateComment,
@@ -27,7 +27,6 @@ import {
   updateCommentDenied,
   updateCommentFailed,
   updateCommentRequest,
-  updateCommentsList,
   updateCommentSuccess,
 } from './slices';
 
@@ -117,15 +116,12 @@ export function fetchCommentResponses(commentId, { page = 1 } = {}) {
   };
 }
 
-export function editComment(commentId, comment, action = null) {
+export function editComment(commentId, comment) {
   return async (dispatch) => {
     try {
       dispatch(updateCommentRequest({ commentId }));
       const data = await updateComment(commentId, comment);
       dispatch(updateCommentSuccess(camelCaseObject(data)));
-      if (action === ContentActions.ENDORSE) {
-        dispatch(updateCommentsList(camelCaseObject(data)));
-      }
     } catch (error) {
       if (getHttpErrorStatus(error) === 403) {
         dispatch(updateCommentDenied());

src/discussions/comments/messages.js

@@ -26,7 +26,7 @@ const messages = defineMessages({
   },
   endorsedResponseCount: {
     id: 'discussions.comments.comment.endorsedResponseCount',
-    defaultMessage: `{num, plural,
+    defaultMessage: `{num, plural, 
       =0 {No endorsed responses}
       one {Showing # endorsed response}
       other {Showing # endorsed responses}
@@ -55,7 +55,6 @@ const messages = defineMessages({
     defaultMessage: `{postType, select,
       discussion {Discussion}
       question {Question}
-      other {{postType}}
     } posted {relativeTime} by`,
     description: 'Timestamp for when a user posted the message followed by username. The relative time is already translated.',
   },
@@ -148,11 +147,6 @@ const messages = defineMessages({
     defaultMessage: 'Reason for editing',
     description: 'Label for field visible to moderators that allows them to select a reason for editing another user\'s response',
   },
-  editReasonCodeError: {
-    id: 'discussions.editor.posts.editReasonCode.error',
-    defaultMessage: 'Select reason for editing',
-    description: 'Error message visible to moderators when they submit the post/response/comment without select reason for editing',
-  },
   editedBy: {
     id: 'discussions.comment.comments.editedBy',
     defaultMessage: 'Edited by',
@@ -167,16 +161,6 @@ const messages = defineMessages({
     id: 'discussions.post.closedBy',
     defaultMessage: 'Post closed by',
   },
-  replies: {
-    id: 'discussion.comment.repliesHeading',
-    defaultMessage: '{count} replies for the response added',
-    description: 'Text added for screen reader to understand nesting replies.',
-  },
-  time: {
-    id: 'discussion.comment.time',
-    defaultMessage: '{time} ago',
-    description: 'Time text for endorse banner',
-  },
 });
 
 export default messages;

src/discussions/common/ActionsDropdown.jsx

@@ -1,21 +1,18 @@
 import React, { useState } from 'react';
 import PropTypes from 'prop-types';
 
-import { useSelector } from 'react-redux';
-
 import { injectIntl, intlShape } from '@edx/frontend-platform/i18n';
 import { logError } from '@edx/frontend-platform/logging';
 import {
-  Button, Dropdown, Icon, IconButton, ModalPopup, useToggle,
+  Button, Dropdown, Icon, IconButton, ModalPopup,
 } from '@edx/paragon';
 import { MoreHoriz } from '@edx/paragon/icons';
 
 import { ContentActions } from '../../data/constants';
 import { commentShape } from '../comments/comment/proptypes';
-import { selectBlackoutDate } from '../data/selectors';
 import messages from '../messages';
 import { postShape } from '../posts/post/proptypes';
-import { inBlackoutDateRange, useActions } from '../utils';
+import { useActions } from '../utils';
 
 function ActionsDropdown({
   intl,
@@ -23,8 +20,8 @@ function ActionsDropdown({
   disabled,
   actionHandlers,
 }) {
-  const [isOpen, open, close] = useToggle(false);
+  const [isOpen, setOpen] = useState(false);
-  const [target, setTarget] = useState(null);
+  const dropdownIconRef = React.useRef(null);
   const actions = useActions(commentOrPost);
   const handleActions = (action) => {
     const actionFunction = actionHandlers[action];
@@ -34,25 +31,20 @@ function ActionsDropdown({
       logError(`Unknown or unimplemented action ${action}`);
     }
   };
-  const blackoutDateRange = useSelector(selectBlackoutDate);
-  // Find and remove edit action if in blackout date range.
-  if (inBlackoutDateRange(blackoutDateRange)) {
-    actions.splice(actions.findIndex(action => action.id === 'edit'), 1);
-  }
   return (
     <>
-      <IconButton
+      <span ref={dropdownIconRef}>
-        onClick={open}
+        <IconButton
-        alt={intl.formatMessage(messages.actionsAlt)}
+          onClick={() => setOpen(!isOpen)}
-        src={MoreHoriz}
+          alt={intl.formatMessage(messages.actionsAlt)}
-        iconAs={Icon}
+          src={MoreHoriz}
-        disabled={disabled}
+          iconAs={Icon}
-        size="sm"
+          disabled={disabled}
-        ref={setTarget}
+        />
-      />
+      </span>
       <ModalPopup
-        onClose={close}
+        onClose={() => setOpen(false)}
-        positionRef={target}
+        positionRef={dropdownIconRef}
         isOpen={isOpen}
         placement="auto-start"
       >
@@ -70,7 +62,7 @@ function ActionsDropdown({
                 variant="tertiary"
                 size="inline"
                 onClick={() => {
-                  close();
+                  setOpen(false);
                   handleActions(action.action);
                 }}
                 className="d-flex justify-content-start py-1.5 mr-4"

src/discussions/common/ActionsDropdown.test.jsx

@@ -9,7 +9,6 @@ import { camelCaseObject, initializeMockApp, snakeCaseObject } from '@edx/fronte
 import { AppProvider } from '@edx/frontend-platform/react';
 
 import { ContentActions } from '../../data/constants';
-import { initializeStore } from '../../store';
 import messages from '../messages';
 import { ACTIONS_LIST } from '../utils';
 import ActionsDropdown from './ActionsDropdown';
@@ -127,7 +126,6 @@ describe('ActionsDropdown', () => {
         roles: [],
       },
     });
-    store = initializeStore();
   });
 
   it.each(buildTestContent())('can open drop down if enabled', async (commentOrPost) => {
@@ -152,36 +150,6 @@ describe('ActionsDropdown', () => {
     await waitFor(() => expect(screen.queryByTestId('actions-dropdown-modal-popup')).not.toBeInTheDocument());
   });
 
-  it('copy link action should be visible on posts', async () => {
-    const commentOrPost = {
-      testFor: 'thread',
-      ...camelCaseObject(Factory.build('thread', { editable_fields: ['copy_link'] }, null)),
-    };
-    renderComponent(commentOrPost, { disabled: false });
-
-    const openButton = await findOpenActionsDropdownButton();
-    await act(async () => {
-      fireEvent.click(openButton);
-    });
-
-    await waitFor(() => expect(screen.queryByText('Copy link')).toBeInTheDocument());
-  });
-
-  it('copy link action should not be visible on a comment', async () => {
-    const commentOrPost = {
-      testFor: 'comments',
-      ...camelCaseObject(Factory.build('comment', {}, null)),
-    };
-    renderComponent(commentOrPost, { disabled: false });
-
-    const openButton = await findOpenActionsDropdownButton();
-    await act(async () => {
-      fireEvent.click(openButton);
-    });
-
-    await waitFor(() => expect(screen.queryByText('Copy link')).not.toBeInTheDocument());
-  });
-
   describe.each(canPerformActionTestData)('Actions', ({
     testFor, action, label, reason, ...commentOrPost
   }) => {

src/discussions/common/AlertBanner.jsx

@@ -2,62 +2,86 @@ import React from 'react';
 import PropTypes from 'prop-types';
 
 import { useSelector } from 'react-redux';
+import * as timeago from 'timeago.js';
 
-import { getAuthenticatedUser } from '@edx/frontend-platform/auth';
 import { injectIntl, intlShape } from '@edx/frontend-platform/i18n';
 import { Alert } from '@edx/paragon';
-import { Error } from '@edx/paragon/icons';
+import { CheckCircle, Error, Verified } from '@edx/paragon/icons';
 
+import { ThreadType } from '../../data/constants';
 import { commentShape } from '../comments/comment/proptypes';
 import messages from '../comments/messages';
-import { selectModerationSettings, selectUserHasModerationPrivileges, selectUserIsGroupTa } from '../data/selectors';
+import { selectModerationSettings, selectUserIsPrivileged } from '../data/selectors';
 import { postShape } from '../posts/post/proptypes';
 import AuthorLabel from './AuthorLabel';
 
 function AlertBanner({
   intl,
   content,
+  postType,
 }) {
-  const userHasModerationPrivileges = useSelector(selectUserHasModerationPrivileges);
+  const isQuestion = postType === ThreadType.QUESTION;
-  const userIsGroupTa = useSelector(selectUserIsGroupTa);
+  const classes = isQuestion ? 'bg-success-500 text-white' : 'bg-dark-500 text-white';
+  const iconClass = isQuestion ? CheckCircle : Verified;
+  const userIsPrivileged = useSelector(selectUserIsPrivileged);
   const { reasonCodesEnabled } = useSelector(selectModerationSettings);
-  const userIsContentAuthor = getAuthenticatedUser().username === content.author;
-  const canSeeLastEditOrClosedAlert = (userHasModerationPrivileges || userIsContentAuthor || userIsGroupTa);
-  const canSeeReportedBanner = content?.abuseFlagged;
-
   return (
     <>
-      {canSeeReportedBanner && (
+      {content.endorsed && (
-        <Alert icon={Error} variant="danger" className="px-3 mb-2 py-10px shadow-none flex-fill">
+        <Alert
+          variant="plain"
+          className={`p-3 m-0 align-items-center shadow-none ${classes}`}
+          style={{ borderRadius: '0.375rem 0.375rem 0 0' }}
+          icon={iconClass}
+        >
+          <div className="d-flex justify-content-between">
+            <strong className="lead">{intl.formatMessage(
+              isQuestion
+                ? messages.answer
+                : messages.endorsed,
+            )}
+            </strong>
+            <span className="d-flex align-items-center mr-1">
+              <span className="mr-2">
+                {intl.formatMessage(
+                  isQuestion
+                    ? messages.answeredLabel
+                    : messages.endorsedLabel,
+                )}
+              </span>
+              <AuthorLabel author={content.endorsedBy} authorLabel={content.endorsedByLabel} />
+              {timeago.format(content.endorsedAt, intl.locale)}
+            </span>
+          </div>
+        </Alert>
+      )}
+      {content.abuseFlagged && (
+        <Alert icon={Error} variant="danger" className="p-3 m-0 shadow-none mb-1 flex-fill">
           {intl.formatMessage(messages.abuseFlaggedMessage)}
         </Alert>
       )}
-      {reasonCodesEnabled && canSeeLastEditOrClosedAlert && (
+      {reasonCodesEnabled && userIsPrivileged && content.lastEdit?.reason && (
-        <>
+        <Alert variant="info" className="p-3 m-0 shadow-none mb-1 bg-light-200">
-          {content.lastEdit?.reason && (
+          <div className="d-flex align-items-center">
-            <Alert variant="info" className="px-3 shadow-none mb-2 py-10px bg-light-200">
+            {intl.formatMessage(messages.editedBy)}
-              <div className="d-flex align-items-center flex-wrap">
+            <span className="ml-1 mr-3">
-                {intl.formatMessage(messages.editedBy)}
+              <AuthorLabel author={content.lastEdit.editorUsername} linkToProfile />
-                <span className="ml-1 mr-3">
+            </span>
-                  <AuthorLabel author={content.lastEdit.editorUsername} linkToProfile />
+            {intl.formatMessage(messages.reason)}:&nbsp;{content.lastEdit.reason}
-                </span>
+          </div>
-                {intl.formatMessage(messages.reason)}:&nbsp;{content.lastEdit.reason}
+        </Alert>
-              </div>
+      )}
-            </Alert>
+      {reasonCodesEnabled && content.closed && (
-          )}
+        <Alert variant="info" className="p-3 m-0 shadow-none mb-1 bg-light-200">
-          {content.closed && (
+          <div className="d-flex align-items-center">
-            <Alert variant="info" className="px-3 shadow-none mb-2 py-10px bg-light-200">
+            {intl.formatMessage(messages.closedBy)}
-              <div className="d-flex align-items-center flex-wrap">
+            <span className="ml-1 ">
-                {intl.formatMessage(messages.closedBy)}
+              <AuthorLabel author={content.closedBy} linkToProfile />
-                <span className="ml-1 ">
+            </span>
-                  <AuthorLabel author={content.closedBy} linkToProfile />
+            <span className="mx-1" />
-                </span>
+            {intl.formatMessage(messages.reason)}:&nbsp;{content.closeReason}
-                <span className="mx-1" />
+          </div>
-                {content.closeReason && (`${intl.formatMessage(messages.reason)}: ${content.closeReason}`)}
+        </Alert>
-              </div>
-            </Alert>
-          )}
-        </>
       )}
     </>
   );
@@ -66,6 +90,11 @@ function AlertBanner({
 AlertBanner.propTypes = {
   intl: intlShape.isRequired,
   content: PropTypes.oneOfType([commentShape.isRequired, postShape.isRequired]).isRequired,
+  postType: PropTypes.string,
+};
+
+AlertBanner.defaultProps = {
+  postType: null,
 };
 
 export default injectIntl(AlertBanner);

src/discussions/common/AlertBanner.test.jsx

@@ -9,7 +9,6 @@ import { ThreadType } from '../../data/constants';
 import { initializeStore } from '../../store';
 import messages from '../comments/messages';
 import AlertBanner from './AlertBanner';
-import { DiscussionContext } from './context';
 
 import '../comments/data/__factories__';
 import '../posts/data/__factories__';
@@ -23,17 +22,15 @@ function buildTestContent(type, buildParams) {
 
 function renderComponent(
   content,
+  postType,
 ) {
   render(
     <IntlProvider locale="en">
       <AppProvider store={store}>
-        <DiscussionContext.Provider
+        <AlertBanner
-          value={{ courseId: 'course-v1:edX+TestX+Test_Course' }}
+          content={content}
-        >
+          postType={postType}
-          <AlertBanner
+        />
-            content={content}
-          />
-        </DiscussionContext.Provider>
       </AppProvider>
     </IntlProvider>,
   );
@@ -47,6 +44,27 @@ describe.each([
     props: { abuseFlagged: true },
     expectText: [messages.abuseFlaggedMessage.defaultMessage],
   },
+  {
+    label: 'Staff endorsed comment in a question thread',
+    type: 'comment',
+    postType: ThreadType.QUESTION,
+    props: { endorsed: true, endorsedBy: 'test-user', endorsedByLabel: 'Staff' },
+    expectText: [messages.answer.defaultMessage, messages.answeredLabel.defaultMessage, 'test-user', 'Staff'],
+  },
+  {
+    label: 'TA endorsed comment in a question thread',
+    type: 'comment',
+    postType: ThreadType.QUESTION,
+    props: { endorsed: true, endorsedBy: 'test-user', endorsedByLabel: 'Community TA' },
+    expectText: [messages.answer.defaultMessage, messages.answeredLabel.defaultMessage, 'test-user', 'TA'],
+  },
+  {
+    label: 'endorsed comment in a discussion thread',
+    type: 'comment',
+    postType: ThreadType.DISCUSSION,
+    props: { endorsed: true, endorsedBy: 'test-user' },
+    expectText: [messages.endorsed.defaultMessage, messages.endorsedLabel.defaultMessage, 'test-user'],
+  },
   {
     label: 'flagged thread',
     type: 'thread',
@@ -58,7 +76,7 @@ describe.each([
     label: 'edited content',
     type: 'thread',
     postType: null,
-    props: { closed: false, last_edit: { reason: 'test-reason', editorUsername: 'editor-user' } },
+    props: { last_edit: { reason: 'test-reason', editorUsername: 'editor-user' } },
     expectText: [messages.editedBy.defaultMessage, messages.reason.defaultMessage, 'editor-user', 'test-reason'],
   },
   {
@@ -69,7 +87,7 @@ describe.each([
     expectText: [messages.closedBy.defaultMessage, 'closing-user', 'test-close-reason'],
   },
 ])('AlertBanner', ({
-  label, type, props, expectText,
+  label, type, postType, props, expectText,
 }) => {
   beforeEach(async () => {
     initializeMockApp({
@@ -82,12 +100,12 @@ describe.each([
     });
     store = initializeStore({
       config: {
-        hasModerationPrivileges: true,
+        userIsPrivileged: true,
         reasonCodesEnabled: true,
       },
     });
     const content = buildTestContent(type, props);
-    renderComponent(content);
+    renderComponent(content, postType);
   });
 
   it(`should show correct banner for a ${label}`, async () => {

src/discussions/common/AuthorLabel.jsx

@@ -1,18 +1,13 @@
-import React, { useContext } from 'react';
+import React from 'react';
 import PropTypes from 'prop-types';
 
 import classNames from 'classnames';
-import { Link, useLocation } from 'react-router-dom';
 
 import { injectIntl, intlShape } from '@edx/frontend-platform/i18n';
 import { Icon } from '@edx/paragon';
 import { Institution, School } from '@edx/paragon/icons';
 
-import { Routes } from '../../data/constants';
-import { useShowLearnersTab } from '../data/hooks';
 import messages from '../messages';
-import { discussionsPath } from '../utils';
-import { DiscussionContext } from './context';
 
 function AuthorLabel({
   intl,
@@ -21,11 +16,8 @@ function AuthorLabel({
   linkToProfile,
   labelColor,
 }) {
-  const location = useLocation();
-  const { courseId } = useContext(DiscussionContext);
   let icon = null;
   let authorLabelMessage = null;
-
   if (authorLabel === 'Staff') {
     icon = Institution;
     authorLabelMessage = intl.formatMessage(messages.authorLabelStaff);
@@ -34,26 +26,9 @@ function AuthorLabel({
     icon = School;
     authorLabelMessage = intl.formatMessage(messages.authorLabelTA);
   }
-
-  const isRetiredUser = author ? author.startsWith('retired__user') : false;
-
-  const className = classNames('d-flex align-items-center', labelColor);
-
-  const showUserNameAsLink = useShowLearnersTab()
-      && linkToProfile && author && author !== intl.formatMessage(messages.anonymous);
-
   const labelContents = (
-    <div className={className}>
+    <>
-      <span
+      <span className="mr-1">{author}</span>
-        className={classNames('mr-1 font-size-14 font-style-normal font-family-inter font-weight-500', {
-          'text-primary-500': !authorLabelMessage && !isRetiredUser,
-          'text-gray-700': isRetiredUser,
-        })}
-        role="heading"
-        aria-level="2"
-      >
-        {isRetiredUser ? '[Deactivated]' : author }
-      </span>
       {icon && (
         <Icon
           style={{
@@ -64,35 +39,20 @@ function AuthorLabel({
         />
       )}
       {authorLabelMessage && (
-        <span
+        <span className="mr-3 ml-1">
-          className={classNames('mr-3 font-size-14 font-style-normal font-family-inter font-weight-500', {
-            'text-primary-500': !authorLabelMessage,
-          })}
-          style={{ marginLeft: '2px' }}
-        >
           {authorLabelMessage}
         </span>
       )}
-    </div>
+    </>
   );
-
+  const className = classNames('d-flex align-items-center', labelColor);
-  return showUserNameAsLink
+  return linkToProfile
-    ? (
+    ? React.createElement('a', { href: '#nowhere', className }, labelContents)
-      <Link
+    : React.createElement('div', { className }, labelContents);
-        data-testid="learner-posts-link"
-        id="learner-posts-link"
-        to={discussionsPath(Routes.LEARNERS.POSTS, { learnerUsername: author, courseId })(location)}
-        className="text-decoration-none"
-        style={{ width: 'fit-content' }}
-      >
-        {labelContents}
-      </Link>
-    )
-    : <>{labelContents}</>;
 }
 
 AuthorLabel.propTypes = {
-  intl: intlShape.isRequired,
+  intl: intlShape,
   author: PropTypes.string.isRequired,
   authorLabel: PropTypes.string,
   linkToProfile: PropTypes.bool,

src/discussions/common/AuthorLabel.test.jsx

@@ -1,107 +0,0 @@
-import React from 'react';
-
-import { render, screen } from '@testing-library/react';
-import MockAdapter from 'axios-mock-adapter';
-import { IntlProvider } from 'react-intl';
-
-import { initializeMockApp } from '@edx/frontend-platform';
-import { getAuthenticatedHttpClient } from '@edx/frontend-platform/auth';
-import { AppProvider } from '@edx/frontend-platform/react';
-
-import { initializeStore } from '../../store';
-import { executeThunk } from '../../test-utils';
-import { courseConfigApiUrl } from '../data/api';
-import { fetchCourseConfig } from '../data/thunks';
-import AuthorLabel from './AuthorLabel';
-import { DiscussionContext } from './context';
-
-const courseId = 'course-v1:edX+DemoX+Demo_Course';
-let store;
-let axiosMock;
-let container;
-
-function renderComponent(author, authorLabel, linkToProfile, labelColor) {
-  const wrapper = render(
-    <IntlProvider locale="en">
-      <AppProvider store={store}>
-        <DiscussionContext.Provider value={{ courseId }}>
-          <AuthorLabel
-            author={author}
-            authorLabel={authorLabel}
-            linkToProfile={linkToProfile}
-            labelColor={labelColor}
-          />
-        </DiscussionContext.Provider>
-      </AppProvider>
-    </IntlProvider>,
-  );
-  container = wrapper.container;
-  return container;
-}
-
-describe('Author label', () => {
-  beforeEach(async () => {
-    initializeMockApp({
-      authenticatedUser: {
-        userId: 3,
-        username: 'abc123',
-        administrator: true,
-        roles: [],
-      },
-    });
-    store = initializeStore();
-    axiosMock = new MockAdapter(getAuthenticatedHttpClient());
-    axiosMock.onGet(`${courseConfigApiUrl}${courseId}/`).reply(200, {
-      learners_tab_enabled: true,
-      has_moderation_privileges: true,
-    });
-    axiosMock.onGet(`${courseConfigApiUrl}${courseId}/settings`).reply(200, {});
-    await executeThunk(fetchCourseConfig(courseId), store.dispatch, store.getState);
-  });
-
-  describe.each([
-    ['anonymous', null, false, ''],
-    ['ta_user', 'Community TA', true, 'text-TA-color'],
-    ['retired__user', null, false, ''],
-    ['staff_user', 'Staff', true, 'text-staff-color'],
-    ['learner_user', null, false, ''],
-  ])('for %s', (
-    author, authorLabel, linkToProfile, labelColor,
-  ) => {
-    it('it has author name text',
-      async () => {
-        renderComponent(author, authorLabel, linkToProfile, labelColor);
-        const authorElement = container.querySelector('[role=heading]');
-        const authorName = author.startsWith('retired__user') ? '[Deactivated]' : author;
-
-        expect(authorElement).toHaveTextContent(authorName);
-      });
-
-    it(`it is "${!linkToProfile && 'not'}" clickable when linkToProfile is ${!!linkToProfile}`,
-      async () => {
-        renderComponent(author, authorLabel, linkToProfile, labelColor);
-
-        if (linkToProfile) {
-          expect(screen.queryByTestId('learner-posts-link')).toBeInTheDocument();
-        } else {
-          expect(screen.queryByTestId('learner-posts-link')).not.toBeInTheDocument();
-        }
-      });
-
-    it(`it has "${!linkToProfile && 'not'}" label text and label color when linkToProfile is ${!!linkToProfile}`,
-      async () => {
-        renderComponent(author, authorLabel, linkToProfile, labelColor);
-        const authorElement = container.querySelector('[role=heading]');
-        const labelElement = authorElement.parentNode.lastChild;
-        const label = ['TA', 'Staff'].includes(labelElement.textContent) && labelElement.textContent;
-
-        if (linkToProfile) {
-          expect(authorElement.parentNode).toHaveClass(labelColor);
-          expect(authorElement.parentNode.lastChild).toHaveTextContent(label);
-        } else {
-          expect(authorElement.parentNode.lastChild).not.toHaveTextContent(label, { exact: true });
-          expect(authorElement.parentNode).not.toHaveClass(labelColor, { exact: true });
-        }
-      });
-  });
-});

src/discussions/common/DeleteConfirmation.jsx

@@ -15,7 +15,7 @@ function DeleteConfirmation({
   onDelete,
 }) {
   return (
-    <ModalDialog title={title} isOpen={isOpen} hasCloseButton={false} onClose={onClose} zIndex={5000}>
+    <ModalDialog title={title} isOpen={isOpen} hasCloseButton={false} onClose={onClose}>
       <ModalDialog.Header>
         <ModalDialog.Title>
           {title}

src/discussions/common/EndorsedAlertBanner.jsx

@@ -1,68 +0,0 @@
-import React from 'react';
-import PropTypes from 'prop-types';
-
-import * as timeago from 'timeago.js';
-
-import { injectIntl, intlShape } from '@edx/frontend-platform/i18n';
-import { Alert } from '@edx/paragon';
-import { CheckCircle, Verified } from '@edx/paragon/icons';
-
-import { ThreadType } from '../../data/constants';
-import { commentShape } from '../comments/comment/proptypes';
-import messages from '../comments/messages';
-import AuthorLabel from './AuthorLabel';
-import timeLocale from './time-locale';
-
-function EndorsedAlertBanner({
-  intl,
-  content,
-  postType,
-}) {
-  timeago.register('time-locale', timeLocale);
-  const isQuestion = postType === ThreadType.QUESTION;
-  const classes = isQuestion ? 'bg-success-500 text-white' : 'bg-dark-500 text-white';
-  const iconClass = isQuestion ? CheckCircle : Verified;
-
-  return (
-    content.endorsed && (
-      <Alert
-        variant="plain"
-        className={`px-3 mb-0 py-10px align-items-center shadow-none ${classes}`}
-        style={{ borderRadius: '0.375rem 0.375rem 0 0' }}
-        icon={iconClass}
-      >
-        <div className="d-flex justify-content-between flex-wrap">
-          <strong className="lead">{intl.formatMessage(
-            isQuestion
-              ? messages.answer
-              : messages.endorsed,
-          )}
-          </strong>
-          <span className="d-flex align-items-center mr-1 flex-wrap">
-            <span className="mr-2">
-              {intl.formatMessage(
-                isQuestion
-                  ? messages.answeredLabel
-                  : messages.endorsedLabel,
-              )}
-            </span>
-            <AuthorLabel author={content.endorsedBy} authorLabel={content.endorsedByLabel} linkToProfile />
-            {intl.formatMessage(messages.time, { time: timeago.format(content.endorsedAt, 'time-locale') })}
-          </span>
-        </div>
-      </Alert>
-    )
-  );
-}
-
-EndorsedAlertBanner.propTypes = {
-  intl: intlShape.isRequired,
-  content: PropTypes.oneOfType([commentShape.isRequired]).isRequired,
-  postType: PropTypes.string,
-};
-
-EndorsedAlertBanner.defaultProps = {
-  postType: null,
-};
-
-export default injectIntl(EndorsedAlertBanner);

src/discussions/common/EndorsedAlertBanner.test.jsx

@@ -1,92 +0,0 @@
-import { render, screen } from '@testing-library/react';
-import { IntlProvider } from 'react-intl';
-import { Factory } from 'rosie';
-
-import { camelCaseObject, initializeMockApp, snakeCaseObject } from '@edx/frontend-platform';
-import { AppProvider } from '@edx/frontend-platform/react';
-
-import { ThreadType } from '../../data/constants';
-import { initializeStore } from '../../store';
-import messages from '../comments/messages';
-import { DiscussionContext } from './context';
-import EndorsedAlertBanner from './EndorsedAlertBanner';
-
-import '../comments/data/__factories__';
-import '../posts/data/__factories__';
-
-let store;
-
-function buildTestContent(type, buildParams) {
-  const buildParamsSnakeCase = snakeCaseObject(buildParams);
-  return camelCaseObject(Factory.build(type, { ...buildParamsSnakeCase }, null));
-}
-
-function renderComponent(
-  content, postType,
-) {
-  render(
-    <IntlProvider locale="en">
-      <AppProvider store={store}>
-        <DiscussionContext.Provider
-          value={{ courseId: 'course-v1:edX+DemoX+Demo_Course' }}
-        >
-          <EndorsedAlertBanner
-            content={content}
-            postType={postType}
-          />
-        </DiscussionContext.Provider>
-      </AppProvider>
-    </IntlProvider>,
-  );
-}
-
-describe.each([
-  {
-    label: 'Staff endorsed comment in a question thread',
-    type: 'comment',
-    postType: ThreadType.QUESTION,
-    props: { endorsed: true, endorsedBy: 'test-user', endorsedByLabel: 'Staff' },
-    expectText: [messages.answer.defaultMessage, messages.answeredLabel.defaultMessage, 'test-user', 'Staff'],
-  },
-  {
-    label: 'TA endorsed comment in a question thread',
-    type: 'comment',
-    postType: ThreadType.QUESTION,
-    props: { endorsed: true, endorsedBy: 'test-user', endorsedByLabel: 'Community TA' },
-    expectText: [messages.answer.defaultMessage, messages.answeredLabel.defaultMessage, 'test-user', 'TA'],
-  },
-  {
-    label: 'endorsed comment in a discussion thread',
-    type: 'comment',
-    postType: ThreadType.DISCUSSION,
-    props: { endorsed: true, endorsedBy: 'test-user' },
-    expectText: [messages.endorsed.defaultMessage, messages.endorsedLabel.defaultMessage, 'test-user'],
-  },
-])('EndorsedAlertBanner', ({
-  label, type, postType, props, expectText,
-}) => {
-  beforeEach(async () => {
-    initializeMockApp({
-      authenticatedUser: {
-        userId: 3,
-        username: 'abc123',
-        administrator: false,
-        roles: [],
-      },
-    });
-    store = initializeStore({
-      config: {
-        hasModerationPrivileges: true,
-        reasonCodesEnabled: true,
-      },
-    });
-    const content = buildTestContent(type, props);
-    renderComponent(content, postType);
-  });
-
-  it(`should show correct banner for a ${label}`, async () => {
-    expectText.forEach(message => {
-      expect(screen.queryAllByText(message, { exact: false }).length).toBeGreaterThan(0);
-    });
-  });
-});

src/discussions/common/index.js

@@ -2,4 +2,3 @@ export { default as ActionsDropdown } from './ActionsDropdown';
 export { default as AlertBanner } from './AlertBanner';
 export { default as AuthorLabel } from './AuthorLabel';
 export { default as DeleteConfirmation } from './DeleteConfirmation';
-export { default as EndorsedAlertBanner } from './EndorsedAlertBanner';

src/discussions/common/time-locale.js

@@ -1,19 +0,0 @@
-// eslint-disable-next-line no-unused-vars
-export default function timeLocale(number, index, totalSec) {
-  return [
-    ['just now', 'right now'],
-    ['%ss', 'in %s seconds'],
-    ['1m', 'in 1 minute'],
-    ['%sm', 'in %s minutes'],
-    ['1h', 'in 1 hour'],
-    ['%sh', 'in %s hours'],
-    ['1d', 'in 1 day'],
-    ['%sd', 'in %s days'],
-    ['1w', 'in 1 week'],
-    ['%sw', 'in %s weeks'],
-    ['4w', 'in 1 month'],
-    [`${number * 4}w`, 'in %s months'],
-    ['1y', 'in 1 year'],
-    ['%sy', 'in %s years'],
-  ][index];
-}

src/discussions/data/__factories__/config.factory.js

@@ -4,6 +4,6 @@ Factory.define('config')
   .attrs({
     allow_anonymous: false,
     allow_anonymous_to_peers: false,
-    has_moderation_privileges: false,
+    user_is_privileged: false,
   })
-  .attr('user_roles', ['has_moderation_privileges'], (hasModerationPrivileges) => (hasModerationPrivileges ? ['Student', 'Moderator'] : ['Student']));
+  .attr('user_roles', ['user_is_privileged'], (userIsPrivileged) => (userIsPrivileged ? ['Student', 'Moderator'] : ['Student']));

src/discussions/data/hooks.js

@@ -1,30 +1,19 @@
 /* eslint-disable import/prefer-default-export */
-import {
+import { useContext, useEffect, useRef } from 'react';
-  useContext, useEffect, useRef, useState,
-} from 'react';
 
 import { useDispatch, useSelector } from 'react-redux';
 import { useHistory, useLocation, useRouteMatch } from 'react-router';
 
-import { getAuthenticatedUser } from '@edx/frontend-platform/auth';
 import { AppContext } from '@edx/frontend-platform/react';
 import { breakpoints, useWindowSize } from '@edx/paragon';
 
 import { Routes } from '../../data/constants';
-import { selectTopicsUnderCategory } from '../../data/selectors';
 import { fetchCourseBlocks } from '../../data/thunks';
-import { DiscussionContext } from '../common/context';
 import { clearRedirect } from '../posts/data';
 import { selectTopics } from '../topics/data/selectors';
 import { fetchCourseTopics } from '../topics/data/thunks';
-import { discussionsPath } from '../utils';
+import { discussionsPath, postMessageToParent } from '../utils';
-import {
+import { selectAreThreadsFiltered, selectPostThreadCount } from './selectors';
-  selectAreThreadsFiltered, selectLearnersTabEnabled,
-  selectModerationSettings,
-  selectPostThreadCount,
-  selectUserHasModerationPrivileges,
-  selectUserIsGroupTa,
-} from './selectors';
 import { fetchCourseConfig } from './thunks';
 
 export function useTotalTopicThreadCount() {
@@ -95,80 +84,60 @@ export function useRedirectToThread(courseId) {
 }
 
 export function useIsOnDesktop() {
-  return window.outerWidth >= breakpoints.large.minWidth;
+  const windowSize = useWindowSize();
+  return windowSize.width >= breakpoints.large.minWidth;
 }
 
-export function useIsOnXLDesktop() {
+/**
-  const windowSize = useWindowSize();
+ * Given an element this attempts to get the height of the entire UI.
-  return windowSize.width >= breakpoints.extraLarge.minWidth;
+ *
+ * @param element
+ * @returns {number}
+ */
+function getOuterHeight(element) {
+  // This is the height of the entire document body.
+  const bodyHeight = document.body.offsetHeight;
+  // This is the height of the container that will scroll.
+  const elementContainerHeight = element.parentNode.clientHeight;
+  // The difference between the body height and the container height is the size of the header footer etc.
+  // Add to that the element's own height and we get the size the UI should be to fit everything.
+  return bodyHeight - elementContainerHeight + element.scrollHeight;
 }
 
 /**
  * This hook posts a resize message to the parent window if running in an iframe
  * @param refContainer reference to the component whose size is to be measured
  */
-export function useContainerSize(refContainer) {
+export function useContainerSizeForParent(refContainer) {
+  function postResizeMessage(height) {
+    postMessageToParent('plugin.resize', { height });
+  }
+
   const location = useLocation();
-  const [height, setHeight] = useState();
+  const enabled = window.parent !== window;
 
   const resizeObserver = useRef(new ResizeObserver(() => {
     /* istanbul ignore if: ResizeObserver isn't available in the testing env */
-    if (refContainer?.current) {
+    if (refContainer.current) {
-      setHeight(refContainer?.current?.clientHeight);
+      postResizeMessage(getOuterHeight(refContainer.current));
     }
   }));
 
   useEffect(() => {
-    const container = refContainer?.current;
+    const container = refContainer.current;
-    const observer = resizeObserver?.current;
+    const observer = resizeObserver.current;
-    if (container && observer) {
+    if (container && observer && enabled) {
       observer.observe(container);
-      setHeight(container.clientHeight);
+      postResizeMessage(getOuterHeight(container));
     }
 
     return () => {
-      if (container && observer) {
+      if (container && observer && enabled) {
         observer.unobserve(container);
+        // Send a message to reset the size so that navigating to another
+        // page doesn't cause the size to be retained
+        postResizeMessage(null);
       }
     };
   }, [refContainer, resizeObserver, location]);
-
-  return height;
 }
-
-export const useAlertBannerVisible = (content) => {
-  const userHasModerationPrivileges = useSelector(selectUserHasModerationPrivileges);
-  const userIsGroupTa = useSelector(selectUserIsGroupTa);
-  const { reasonCodesEnabled } = useSelector(selectModerationSettings);
-  const userIsContentAuthor = getAuthenticatedUser().username === content.author;
-  const canSeeLastEditOrClosedAlert = (userHasModerationPrivileges || userIsContentAuthor || userIsGroupTa);
-  const canSeeReportedBanner = content.abuseFlagged;
-
-  return (
-    (reasonCodesEnabled && canSeeLastEditOrClosedAlert && (content.lastEdit?.reason || content.closed))
-    || (content.abuseFlagged && canSeeReportedBanner)
-  );
-};
-
-export const useShowLearnersTab = () => useSelector(selectLearnersTabEnabled);
-
-/**
- * React hook that gets the current topic ID from the current topic or category.
- * The topicId in the DiscussionContext only return the direct topicId from the URL.
- * If the URL has the current block ID it cannot get the topicID from that. This hook
- * gets the topic ID from the URL if available, or from the current category otherwise.
- * It only returns an ID if a single ID is available, if navigating a subsection it
- * returns null.
- * @returns {null|string} A topic ID if a single one available in the current context.
- */
-export const useCurrentDiscussionTopic = () => {
-  const { topicId, category } = useContext(DiscussionContext);
-  const topics = useSelector(selectTopicsUnderCategory)(category);
-  if (topicId) {
-    return topicId;
-  }
-  if (topics?.length === 1) {
-    return topics[0];
-  }
-  return null;
-};

src/discussions/data/hooks.test.jsx

@@ -1,85 +1,68 @@
-import { render } from '@testing-library/react';
+import { useRef } from 'react';
-import { IntlProvider } from 'react-intl';
 
-import { initializeMockApp } from '@edx/frontend-platform';
+import { render, waitFor } from '@testing-library/react';
+import { IntlProvider } from 'react-intl';
+import { Context as ResponsiveContext } from 'react-responsive';
+import { MemoryRouter } from 'react-router';
+
+import { getConfig, initializeMockApp } from '@edx/frontend-platform';
 import { AppProvider } from '@edx/frontend-platform/react';
 
 import { initializeStore } from '../../store';
-import { DiscussionContext } from '../common/context';
+import { useContainerSizeForParent } from './hooks';
-import { useCurrentDiscussionTopic } from './hooks';
 
 let store;
 initializeMockApp();
 describe('Hooks', () => {
-  describe('useCurrentDiscussionTopic', () => {
+  function ComponentWithHook() {
-    function ComponentWithHook() {
+    const refContainer = useRef(null);
-      const topic = useCurrentDiscussionTopic();
+    useContainerSizeForParent(refContainer);
-      return (
+    return (
-        <div>
+      <div>
-          {String(topic)}
+        <div ref={refContainer} />
-        </div>
+      </div>
-      );
+    );
-    }
+  }
 
-    function renderComponent({ topicId, category }) {
+  function renderComponent() {
-      return render(
+    return render(
-        <IntlProvider locale="en">
+      <IntlProvider locale="en">
+        <ResponsiveContext.Provider value={{ width: 1280 }}>
           <AppProvider store={store}>
-            <DiscussionContext.Provider
+            <MemoryRouter initialEntries={['/']}>
-              value={{
-                topicId,
-                category,
-              }}
-            >
               <ComponentWithHook />
-            </DiscussionContext.Provider>
+            </MemoryRouter>
           </AppProvider>
-        </IntlProvider>,
+        </ResponsiveContext.Provider>
-      );
+      </IntlProvider>,
-    }
+    );
+  }
 
-    beforeEach(() => {
+  let parent;
-      store = initializeStore({
+  beforeEach(() => {
-        blocks: {
+    store = initializeStore();
-          blocks: {
+    parent = window.parent;
-            'some-unit-key': { topics: ['some-topic-0'], parent: 'some-sequence-key' },
+  });
-            'some-sequence-key': { topics: ['some-topic-0'] },
+  afterEach(() => {
-            'another-sequence-key': { topics: ['some-topic-1', 'some-topic-2'] },
+    window.parent = parent;
-            'empty-key': { topics: [] },
+  });
-          },
+  test('useContainerSizeForParent enabled', async () => {
-        },
+    delete window.parent;
-        config: { provider: 'openedx' },
+    window.parent = { ...window, postMessage: jest.fn() };
-      });
+    const { unmount } = renderComponent();
-    });
+    // Once for LMS and one for learning MFE
-
+    await waitFor(() => expect(window.parent.postMessage).toHaveBeenCalledTimes(2));
-    test('when topicId is in context', () => {
+    // Test that size is reset on unmount
-      const { queryByText } = renderComponent({ topicId: 'some-topic' });
+    unmount();
-      expect(queryByText('some-topic')).toBeInTheDocument();
+    await waitFor(() => expect(window.parent.postMessage).toHaveBeenCalledTimes(4));
-    });
+    expect(window.parent.postMessage).toHaveBeenLastCalledWith(
-
+      { type: 'plugin.resize', payload: { height: null } },
-    test('when the category is a unit', () => {
+      getConfig().LMS_BASE_URL,
-      const { queryByText } = renderComponent({ category: 'some-unit-key' });
+    );
-      expect(queryByText('some-topic-0')).toBeInTheDocument();
+  });
-    });
+  test('useContainerSizeForParent disabled', async () => {
-
+    window.parent.postMessage = jest.fn();
-    test('when the category is a sequence with one unit', () => {
+    renderComponent();
-      const { queryByText } = renderComponent({ category: 'some-sequence-key' });
+    await waitFor(() => expect(window.parent.postMessage).not.toHaveBeenCalled());
-      expect(queryByText('some-topic-0')).toBeInTheDocument();
-    });
-
-    test('when the category is a sequence with multiple units', () => {
-      const { queryByText } = renderComponent({ category: 'another-sequence-key' });
-      expect(queryByText('null')).toBeInTheDocument();
-    });
-
-    test('when the category is invalid', () => {
-      const { queryByText } = renderComponent({ category: 'invalid-key' });
-      expect(queryByText('null')).toBeInTheDocument();
-    });
-
-    test('when the category has no topics', () => {
-      const { queryByText } = renderComponent({ category: 'empty-key' });
-      expect(queryByText('null')).toBeInTheDocument();
-    });
   });
 });

src/discussions/data/selectors.js

@@ -6,24 +6,14 @@ export const selectAnonymousPostingConfig = state => ({
   allowAnonymousToPeers: state.config.allowAnonymousToPeers,
 });
 
-export const selectUserHasModerationPrivileges = state => state.config.hasModerationPrivileges;
+export const selectUserIsPrivileged = state => state.config.userIsPrivileged;
-
-export const selectUserIsStaff = state => state.config.isUserAdmin;
-
-export const selectUserIsGroupTa = state => state.config.isGroupTa;
 
 export const selectconfigLoadingStatus = state => state.config.status;
 
 export const selectLearnersTabEnabled = state => state.config.learnersTabEnabled;
 
-export const selectUserRoles = state => state.config.userRoles;
-
 export const selectDivisionSettings = state => state.config.settings;
 
-export const selectBlackoutDate = state => state.config.blackouts;
-
-export const selectGroupAtSubsection = state => state.config.groupAtSubsection;
-
 export const selectModerationSettings = state => ({
   postCloseReasons: state.config.postCloseReasons,
   editReasons: state.config.editReasons,

src/discussions/data/slices.js

@@ -11,10 +11,7 @@ const configSlice = createSlice({
     allowAnonymous: false,
     allowAnonymousToPeers: false,
     userRoles: [],
-    groupAtSubsection: false,
+    userIsPrivileged: false,
-    hasModerationPrivileges: false,
-    isGroupTa: false,
-    isUserAdmin: false,
     learnersTabEnabled: false,
     settings: {
       divisionScheme: 'none',

src/discussions/data/thunks.js

@@ -2,12 +2,6 @@
 import { camelCaseObject } from '@edx/frontend-platform';
 import { logError } from '@edx/frontend-platform/logging';
 
-import {
-  LearnersOrdering,
-  PostsStatusFilter,
-} from '../../data/constants';
-import { setSortedBy } from '../learners/data';
-import { setStatusFilter } from '../posts/data';
 import { getHttpErrorStatus } from '../utils';
 import { getDiscussionsConfig, getDiscussionsSettings } from './api';
 import {
@@ -22,23 +16,13 @@ import {
 export function fetchCourseConfig(courseId) {
   return async (dispatch) => {
     try {
-      let learnerSort = LearnersOrdering.BY_LAST_ACTIVITY;
-      const postsFilterStatus = PostsStatusFilter.ALL;
       dispatch(fetchConfigRequest());
-
       const config = await getDiscussionsConfig(courseId);
-      if (config.has_moderation_privileges) {
+      if (config.is_user_admin) {
         const settings = await getDiscussionsSettings(courseId);
         Object.assign(config, { settings });
       }
-
-      if ((config.has_moderation_privileges || config.is_group_ta)) {
-        learnerSort = LearnersOrdering.BY_FLAG;
-      }
-
       dispatch(fetchConfigSuccess(camelCaseObject(config)));
-      dispatch(setSortedBy(learnerSort));
-      dispatch(setStatusFilter(postsFilterStatus));
     } catch (error) {
       if (getHttpErrorStatus(error) === 403) {
         dispatch(fetchConfigDenied());

src/discussions/discussions-home/BlackoutInformationBanner.jsx

@@ -1,36 +0,0 @@
-import React, { useState } from 'react';
-
-import { useSelector } from 'react-redux';
-
-import { injectIntl, intlShape } from '@edx/frontend-platform/i18n';
-import { PageBanner } from '@edx/paragon';
-
-import { selectBlackoutDate } from '../data/selectors';
-import messages from '../messages';
-import { inBlackoutDateRange } from '../utils';
-
-function BlackoutInformationBanner({
-  intl,
-}) {
-  const isDiscussionsBlackout = inBlackoutDateRange(useSelector(selectBlackoutDate));
-  const [showBanner, setShowBanner] = useState(true);
-
-  return (
-    <PageBanner
-      variant="accentB"
-      show={isDiscussionsBlackout && showBanner}
-      dismissible
-      onDismiss={() => setShowBanner(false)}
-    >
-      <div className="font-weight-500">
-        {intl.formatMessage(messages.blackoutDiscussionInformation)}
-      </div>
-    </PageBanner>
-  );
-}
-
-BlackoutInformationBanner.propTypes = {
-  intl: intlShape.isRequired,
-};
-
-export default injectIntl(BlackoutInformationBanner);

src/discussions/discussions-home/BlackoutInformationBanner.test.jsx

@@ -1,76 +0,0 @@
-import { render, screen } from '@testing-library/react';
-import { IntlProvider } from 'react-intl';
-
-import { initializeMockApp } from '@edx/frontend-platform';
-import { AppProvider } from '@edx/frontend-platform/react';
-
-import { initializeStore } from '../../store';
-import { DiscussionContext } from '../common/context';
-import { fetchConfigSuccess } from '../data/slices';
-import messages from '../messages';
-import BlackoutInformationBanner from './BlackoutInformationBanner';
-
-let store;
-let container;
-const courseId = 'course-v1:edX+DemoX+Demo_Course';
-let activeStartDate = new Date();
-activeStartDate.setDate(activeStartDate.getDate() - 2);
-let activeEndDate = new Date();
-activeEndDate.setDate(activeEndDate.getDate() + 2);
-activeStartDate = activeStartDate.toISOString();
-activeEndDate = activeEndDate.toISOString();
-
-const getConfigData = (blackouts = []) => ({
-  id: 'course-v1:edX+DemoX+Demo_Course',
-  userRoles: ['Admin', 'Student'],
-  hasModerationPrivileges: false,
-  isGroupTa: false,
-  isUserAdmin: false,
-  blackouts,
-});
-
-function renderComponent() {
-  const wrapper = render(
-    <IntlProvider locale="en">
-      <AppProvider store={store}>
-        <DiscussionContext.Provider value={{ courseId }}>
-          <BlackoutInformationBanner />
-        </DiscussionContext.Provider>
-      </AppProvider>
-    </IntlProvider>,
-  );
-  container = wrapper.container;
-  return container;
-}
-
-describe('Blackout Information Banner', () => {
-  beforeEach(async () => {
-    initializeMockApp({
-      authenticatedUser: {
-        userId: 3,
-        username: 'abc123',
-        administrator: false,
-        roles: ['Student'],
-      },
-    });
-  });
-
-  test.each([
-    { blackouts: [], visibility: false },
-    { blackouts: ['2021-12-31T10:15', '2021-12-31T10:20'], visibility: false },
-    { blackouts: [{ start: activeStartDate, end: activeEndDate }], visibility: true },
-    { blackouts: [{ start: activeEndDate, end: activeEndDate }], visibility: false },
-  ])('Test Blackout Banner is visible on app load if blackout date is active', async ({ blackouts, visibility }) => {
-    store = initializeStore();
-    await store.dispatch(fetchConfigSuccess(getConfigData(blackouts)));
-    renderComponent();
-    if (visibility) {
-      const element = await screen.findByRole('alert');
-      expect(element).toBeInTheDocument();
-      expect(element).toHaveTextContent(messages.blackoutDiscussionInformation.defaultMessage);
-    } else {
-      const element = await screen.queryByRole('alert');
-      expect(element).not.toBeInTheDocument();
-    }
-  });
-});

src/discussions/discussions-home/DiscussionContent.jsx

@@ -1,46 +1,26 @@
-import React, { useContext } from 'react';
+import React, { useRef } from 'react';
 
 import { useSelector } from 'react-redux';
 import { Route, Switch } from 'react-router';
-import { useHistory, useLocation } from 'react-router-dom';
 
-import { injectIntl, intlShape } from '@edx/frontend-platform/i18n';
+import { Routes } from '../../data/constants';
-import { Icon, IconButton } from '@edx/paragon';
-import { ArrowBack } from '@edx/paragon/icons';
-
-import { PostsPages, Routes } from '../../data/constants';
 import { CommentsView } from '../comments';
-import { DiscussionContext } from '../common/context';
+import { useContainerSizeForParent } from '../data/hooks';
-import { useIsOnDesktop } from '../data/hooks';
+import { LearnersContentView } from '../learners';
-import messages from '../messages';
+import LearnerPageHeader from '../learners/LearnerPageHeader';
 import { PostEditor } from '../posts';
-import { discussionsPath } from '../utils';
 
-function DiscussionContent({ intl }) {
+export default function DiscussionContent() {
-  const location = useLocation();
+  const refContainer = useRef(null);
-  const history = useHistory();
   const postEditorVisible = useSelector((state) => state.threads.postEditorVisible);
-  const isOnDesktop = useIsOnDesktop();
+  useContainerSizeForParent(refContainer);
-  const {
-    courseId, learnerUsername, category, topicId, page,
-  } = useContext(DiscussionContext);
 
   return (
-    <div className="d-flex bg-light-400 flex-column w-75 w-xs-100 w-xl-75 align-items-center">
+    <div className="d-flex bg-light-400 flex-column w-75 w-xs-100 w-xl-75 align-items-center h-100 overflow-auto">
-      <div className="d-flex flex-column w-100">
+      <Route path={Routes.LEARNERS.LEARNER}>
-        {!isOnDesktop && (
+        <LearnerPageHeader />
-          <IconButton
+      </Route>
-            src={ArrowBack}
+      <div className="d-flex flex-column w-100 mw-xl" ref={refContainer}>
-            iconAs={Icon}
-            style={{ padding: '18px' }}
-            size="inline"
-            className="ml-4 mt-4"
-            onClick={() => history.push(discussionsPath(PostsPages[page], {
-              courseId, learnerUsername, category, topicId,
-            })(location))}
-            alt={intl.formatMessage(messages.backAlt)}
-          />
-        )}
         {postEditorVisible ? (
           <Route path={Routes.POSTS.NEW_POST}>
             <PostEditor />
@@ -53,15 +33,12 @@ function DiscussionContent({ intl }) {
             <Route path={Routes.COMMENTS.PATH}>
               <CommentsView />
             </Route>
+            <Route path={Routes.LEARNERS.LEARNER}>
+              <LearnersContentView />
+            </Route>
           </Switch>
         )}
       </div>
     </div>
   );
 }
-
-DiscussionContent.propTypes = {
-  intl: intlShape.isRequired,
-};
-
-export default injectIntl(DiscussionContent);

src/discussions/discussions-home/DiscussionSidebar.jsx

@@ -1,53 +1,26 @@
-import React, { useEffect, useRef } from 'react';
+import React from 'react';
 import PropTypes from 'prop-types';
 
 import classNames from 'classnames';
-import { useSelector } from 'react-redux';
 import {
   Redirect, Route, Switch, useLocation,
 } from 'react-router';
 
-import { useWindowSize } from '@edx/paragon';
+import { Routes } from '../../data/constants';
-
+import { LearnersView } from '../learners';
-import { RequestStatus, Routes } from '../../data/constants';
-import {
-  useContainerSize, useIsOnDesktop, useIsOnXLDesktop, useShowLearnersTab,
-} from '../data/hooks';
-import { selectconfigLoadingStatus } from '../data/selectors';
-import { LearnerPostsView, LearnersView } from '../learners';
 import { PostsView } from '../posts';
 import { TopicsView } from '../topics';
 
-export default function DiscussionSidebar({ displaySidebar, postActionBarRef }) {
+export default function DiscussionSidebar({ displaySidebar }) {
   const location = useLocation();
-  const isOnDesktop = useIsOnDesktop();
-  const isOnXLDesktop = useIsOnXLDesktop();
-  const configStatus = useSelector(selectconfigLoadingStatus);
-  const redirectToLearnersTab = useShowLearnersTab();
-  const sidebarRef = useRef(null);
-  const postActionBarHeight = useContainerSize(postActionBarRef);
-  const { height: windowHeight } = useWindowSize();
-
-  useEffect(() => {
-    if (sidebarRef && postActionBarHeight) {
-      if (isOnDesktop) {
-        sidebarRef.current.style.maxHeight = `${windowHeight - postActionBarHeight}px`;
-      }
-      sidebarRef.current.style.minHeight = `${windowHeight - postActionBarHeight}px`;
-      sidebarRef.current.style.top = `${postActionBarHeight}px`;
-    }
-  }, [sidebarRef, postActionBarHeight]);
 
   return (
     <div
-      ref={sidebarRef}
+      className={classNames('flex-column', {
-      className={classNames('flex-column min-content-height position-sticky', {
         'd-none': !displaySidebar,
-        'd-flex overflow-auto': displaySidebar,
+        'd-flex w-25 w-xs-100 w-lg-25 overflow-auto h-100 pb-2': displaySidebar,
-        'w-100': !isOnDesktop,
-        'sidebar-desktop-width': isOnDesktop && !isOnXLDesktop,
-        'w-25 sidebar-XL-width': isOnXLDesktop,
       })}
+      style={{ minWidth: '30rem' }}
       data-testid="sidebar"
     >
       <Switch>
@@ -56,14 +29,7 @@ export default function DiscussionSidebar({ displaySidebar, postActionBarRef })
           component={PostsView}
         />
         <Route path={Routes.TOPICS.PATH} component={TopicsView} />
-        {redirectToLearnersTab && (
-        <Route path={Routes.LEARNERS.POSTS} component={LearnerPostsView} />
-        )}
-        {redirectToLearnersTab && (
         <Route path={Routes.LEARNERS.PATH} component={LearnersView} />
-        )}
-
-        {configStatus === RequestStatus.SUCCESSFUL && (
         <Redirect
           from={Routes.DISCUSSIONS.PATH}
           to={{
@@ -71,7 +37,6 @@ export default function DiscussionSidebar({ displaySidebar, postActionBarRef })
             pathname: Routes.POSTS.ALL_POSTS,
           }}
         />
-        )}
       </Switch>
     </div>
   );
@@ -79,13 +44,8 @@ export default function DiscussionSidebar({ displaySidebar, postActionBarRef })
 
 DiscussionSidebar.defaultProps = {
   displaySidebar: false,
-  postActionBarRef: null,
 };
 
 DiscussionSidebar.propTypes = {
   displaySidebar: PropTypes.bool,
-  postActionBarRef: PropTypes.oneOfType([
-    PropTypes.func,
-    PropTypes.shape({ current: PropTypes.instanceOf(Element) }),
-  ]),
 };

src/discussions/discussions-home/DiscussionSidebar.test.jsx

@@ -11,8 +11,6 @@ import { getAuthenticatedHttpClient } from '@edx/frontend-platform/auth';
 import { AppProvider } from '@edx/frontend-platform/react';
 
 import { initializeStore } from '../../store';
-import { DiscussionContext } from '../common/context';
-import { fetchConfigSuccess } from '../data/slices';
 import { threadsApiUrl } from '../posts/data/api';
 import DiscussionSidebar from './DiscussionSidebar';
 
@@ -28,11 +26,9 @@ function renderComponent(displaySidebar = true, location = `/${courseId}/`) {
     <IntlProvider locale="en">
       <ResponsiveContext.Provider value={{ width: 1280 }}>
         <AppProvider store={store}>
-          <DiscussionContext.Provider value={{ courseId }}>
+          <MemoryRouter initialEntries={[location]}>
-            <MemoryRouter initialEntries={[location]}>
+            <DiscussionSidebar displaySidebar={displaySidebar} />
-              <DiscussionSidebar displaySidebar={displaySidebar} postActionBarRef={null} />
+          </MemoryRouter>
-            </MemoryRouter>
-          </DiscussionContext.Provider>
         </AppProvider>
       </ResponsiveContext.Provider>
     </IntlProvider>,
@@ -55,7 +51,6 @@ describe('DiscussionSidebar', () => {
     store = initializeStore({
       blocks: { blocks: { 'test-usage-key': { topics: ['some-topic-2', 'some-topic-0'] } } },
     });
-    store.dispatch(fetchConfigSuccess({}));
     Factory.resetAll();
     axiosMock = new MockAdapter(getAuthenticatedHttpClient());
   });
@@ -78,10 +73,7 @@ describe('DiscussionSidebar', () => {
   test('User will be redirected to "All Posts" by default', async () => {
     axiosMock.onGet(threadsApiUrl)
       .reply(({ params }) => [200, Factory.build('threadsResult', {}, {
-        threadAttrs: {
+        threadAttrs: { title: `Thread by ${params.author || 'other users'}` },
-          title: `Thread by ${params.author || 'other users'}`,
-          previewBody: 'thread preview body',
-        },
       })]);
     renderComponent();
     await act(async () => expect(await screen.findAllByText('Thread by other users')).toBeTruthy());
@@ -93,10 +85,7 @@ describe('DiscussionSidebar', () => {
     axiosMock.onGet(threadsApiUrl)
       .reply(({ params }) => [200, Factory.build('threadsResult', {}, {
         count: postCount,
-        threadAttrs: {
+        threadAttrs: { title: `Thread by ${params.author || 'other users'}` },
-          title: `Thread by ${params.author || 'other users'}`,
-          previewBody: 'thread preview body',
-        },
       })]);
     renderComponent();
     await act(async () => expect(await screen.findAllByText('Thread by other users')).toBeTruthy());

src/discussions/discussions-home/DiscussionsHome.jsx

@@ -1,46 +1,36 @@
-import React, { useEffect, useRef } from 'react';
+import React, { useEffect } from 'react';
 
 import { useSelector } from 'react-redux';
 import {
   Route, Switch, useLocation, useRouteMatch,
 } from 'react-router';
 
-import Footer from '@edx/frontend-component-footer';
-import { LearningHeader as Header } from '@edx/frontend-component-header';
-import { getConfig } from '@edx/frontend-platform';
-
 import { PostActionsBar } from '../../components';
-import { CourseTabsNavigation } from '../../components/NavigationBar';
 import { ALL_ROUTES, DiscussionProvider, Routes } from '../../data/constants';
+import { useTheme } from '../../theme-hooks';
 import { DiscussionContext } from '../common/context';
 import {
-  useCourseDiscussionData, useIsOnDesktop, useRedirectToThread, useShowLearnersTab, useSidebarVisible,
+  useCourseDiscussionData, useIsOnDesktop, useRedirectToThread, useSidebarVisible,
 } from '../data/hooks';
 import { selectDiscussionProvider } from '../data/selectors';
-import { EmptyLearners, EmptyPosts, EmptyTopics } from '../empty-posts';
+import { EmptyPosts, EmptyTopics } from '../empty-posts';
 import messages from '../messages';
 import { BreadcrumbMenu, LegacyBreadcrumbMenu, NavigationBar } from '../navigation';
 import { postMessageToParent } from '../utils';
-import BlackoutInformationBanner from './BlackoutInformationBanner';
 import DiscussionContent from './DiscussionContent';
 import DiscussionSidebar from './DiscussionSidebar';
-import InformationBanner from './InformationsBanner';
 
 export default function DiscussionsHome() {
   const location = useLocation();
-  const postActionBarRef = useRef(null);
+  const ready = useTheme('red_theme');
   const postEditorVisible = useSelector(
     (state) => state.threads.postEditorVisible,
   );
   const {
     params: { page },
   } = useRouteMatch(`${Routes.COMMENTS.PAGE}?`);
-
   const { params: { path } } = useRouteMatch(`${Routes.DISCUSSIONS.PATH}/:path*`);
   const { params } = useRouteMatch(ALL_ROUTES);
-  const isRedirectToLearners = useShowLearnersTab();
-  const isFeedbackBannerVisible = getConfig().DISPLAY_FEEDBACK_BANNER === 'true';
-
   const {
     courseId,
     postId,
@@ -49,15 +39,14 @@ export default function DiscussionsHome() {
     learnerUsername,
   } = params;
   const inContext = new URLSearchParams(location.search).get('inContext') !== null;
+
   // Display the content area if we are currently viewing/editing a post or creating one.
-  const displayContentArea = postId || postEditorVisible || (learnerUsername && postId);
+  const displayContentArea = postId || postEditorVisible || learnerUsername;
+
   let displaySidebar = useSidebarVisible();
 
   const isOnDesktop = useIsOnDesktop();
 
-  const { courseNumber, courseTitle, org } = useSelector(
-    (state) => state.courseTabs,
-  );
   if (displayContentArea) {
     // If the window is larger than a particular size, show the sidebar for navigating between posts/topics.
     // However, for smaller screens or embeds, only show the sidebar if the content area isn't displayed.
@@ -72,6 +61,9 @@ export default function DiscussionsHome() {
       postMessageToParent('discussions.navigate', { path });
     }
   }, [path]);
+  if (!ready) {
+    return null;
+  }
 
   return (
     <DiscussionContext.Provider value={{
@@ -84,27 +76,22 @@ export default function DiscussionsHome() {
       learnerUsername,
     }}
     >
-      <Header courseOrg={org} courseNumber={courseNumber} courseTitle={courseTitle} />
+      <main className="container-fluid d-flex flex-column p-0 h-100 w-100 overflow-hidden">
-      <main className="container-fluid d-flex flex-column p-0 w-100" id="main" tabIndex="-1">
+        <div
-        <CourseTabsNavigation activeTab="discussion" courseId={courseId} />
+          className="d-flex flex-row justify-content-between navbar fixed-top"
-        <div className="header-action-bar" ref={postActionBarRef}>
+          style={{ boxShadow: '0px 2px 4px rgb(0 0 0 / 15%), 0px 2px 8px rgb(0 0 0 / 15%)' }}
-          <div
+        >
-            className="d-flex flex-row justify-content-between navbar fixed-top"
+          {!inContext && (
-          >
+          <Route path={Routes.DISCUSSIONS.PATH} component={NavigationBar} />
-            {!inContext && (
+          )}
-            <Route path={Routes.DISCUSSIONS.PATH} component={NavigationBar} />
+          <PostActionsBar inContext={inContext} />
-            )}
-            <PostActionsBar inContext={inContext} />
-          </div>
-          {isFeedbackBannerVisible && <InformationBanner />}
-          <BlackoutInformationBanner />
         </div>
         <Route
           path={[Routes.POSTS.PATH, Routes.TOPICS.CATEGORY]}
           component={provider === DiscussionProvider.LEGACY ? LegacyBreadcrumbMenu : BreadcrumbMenu}
         />
-        <div className="d-flex flex-row">
+        <div className="d-flex flex-row overflow-hidden flex-grow-1">
-          <DiscussionSidebar displaySidebar={displaySidebar} postActionBarRef={postActionBarRef} />
+          <DiscussionSidebar displaySidebar={displaySidebar} />
           {displayContentArea && <DiscussionContent />}
           {!displayContentArea && (
           <Switch>
@@ -114,15 +101,13 @@ export default function DiscussionsHome() {
               render={routeProps => <EmptyPosts {...routeProps} subTitleMessage={messages.emptyMyPosts} />}
             />
             <Route
-              path={[Routes.POSTS.PATH, Routes.POSTS.ALL_POSTS, Routes.LEARNERS.POSTS]}
+              path={[Routes.POSTS.PATH, Routes.POSTS.ALL_POSTS]}
               render={routeProps => <EmptyPosts {...routeProps} subTitleMessage={messages.emptyAllPosts} />}
             />
-            {isRedirectToLearners && <Route path={Routes.LEARNERS.PATH} component={EmptyLearners} /> }
           </Switch>
           )}
         </div>
       </main>
-      <Footer />
     </DiscussionContext.Provider>
   );
 }

src/discussions/discussions-home/DiscussionsHome.test.jsx

@@ -87,11 +87,4 @@ describe('DiscussionsHome', () => {
     await waitFor(() => expect(window.parent.postMessage).toHaveBeenCalled());
     window.parent = parent;
   });
-
-  test('header, course navigation bar and footer are visible', async () => {
-    renderComponent();
-    expect(screen.queryByRole('banner')).toBeInTheDocument();
-    expect(document.getElementById('courseTabsNavigation')).toBeInTheDocument();
-    expect(screen.queryByRole('contentinfo')).toBeInTheDocument();
-  });
 });

src/discussions/discussions-home/InformationBanner.test.jsx

@@ -1,136 +0,0 @@
-import { render, screen } from '@testing-library/react';
-import { IntlProvider } from 'react-intl';
-
-import { initializeMockApp } from '@edx/frontend-platform';
-import { AppProvider } from '@edx/frontend-platform/react';
-
-import { initializeStore } from '../../store';
-import { DiscussionContext } from '../common/context';
-import { fetchConfigSuccess } from '../data/slices';
-import messages from '../messages';
-import InformationBanner from './InformationsBanner';
-
-import '../posts/data/__factories__';
-
-let store;
-let container;
-const courseId = 'course-v1:edX+DemoX+Demo_Course';
-
-const getConfigData = (isAdmin = true, roles = []) => ({
-  id: 'course-v1:edX+DemoX+Demo_Course',
-  userRoles: roles,
-  hasModerationPrivileges: false,
-  isGroupTa: false,
-  isUserAdmin: isAdmin,
-});
-
-function renderComponent() {
-  const wrapper = render(
-    <IntlProvider locale="en">
-      <AppProvider store={store}>
-        <DiscussionContext.Provider value={{ courseId }}>
-          <InformationBanner />
-        </DiscussionContext.Provider>
-      </AppProvider>
-    </IntlProvider>,
-  );
-  container = wrapper.container;
-  return container;
-}
-
-describe('Information Banner learner view', () => {
-  let element;
-  beforeEach(async () => {
-    initializeMockApp({
-      authenticatedUser: {
-        userId: 3,
-        username: 'abc123',
-        administrator: false,
-        roles: ['Student'],
-      },
-    });
-    store = initializeStore();
-    store.dispatch(fetchConfigSuccess(getConfigData(false, ['Student'])));
-    renderComponent(true);
-    element = await screen.findByRole('alert');
-  });
-
-  test('Test Banner is visible on app load', async () => {
-    expect(element).toHaveTextContent(messages.bannerMessage.defaultMessage);
-  });
-
-  test('Test Banner do not have learn more button', async () => {
-    expect(element).not.toHaveTextContent(messages.learnMoreBannerLink.defaultMessage);
-  });
-  test('Test Banner has share feedback button', async () => {
-    expect(element).toHaveTextContent(messages.shareFeedback.defaultMessage);
-  });
-});
-
-describe('Information Banner moderators/staff/admin view', () => {
-  let element;
-  beforeEach(async () => {
-    initializeMockApp({
-      authenticatedUser: {
-        userId: 3,
-        username: 'abc123',
-        administrator: true,
-        roles: [],
-      },
-    });
-
-    store = initializeStore();
-    store.dispatch(fetchConfigSuccess(getConfigData(true, ['Student', 'Moderator'])));
-    renderComponent(true);
-    element = await screen.findByRole('alert');
-  });
-
-  test('Test Banner is visible on app load', async () => {
-    expect(element).toHaveTextContent(messages.bannerMessage.defaultMessage);
-  });
-
-  test('Test Banner has learn more button', async () => {
-    expect(element).toHaveTextContent(messages.learnMoreBannerLink.defaultMessage);
-  });
-  test('Test Banner has share feedback button', async () => {
-    expect(element).toHaveTextContent(messages.shareFeedback.defaultMessage);
-  });
-});
-
-describe('User is redirected according to url according to role', () => {
-  beforeEach(async () => {
-    initializeMockApp({
-      authenticatedUser: {
-        userId: 3,
-        username: 'abc123',
-        administrator: true,
-        roles: [],
-      },
-    });
-    store = initializeStore();
-  });
-
-  test('TAs are redirected to learners feedback form', async () => {
-    store.dispatch(fetchConfigSuccess(getConfigData(false, ['Student', 'Community TA'])));
-    renderComponent(true);
-    expect(screen.getByText(messages.shareFeedback.defaultMessage)
-      .closest('a'))
-      .toHaveAttribute('href', process.env.TA_FEEDBACK_FORM);
-  });
-
-  test('moderators/administrators are redirected to moderators feedback form', async () => {
-    store.dispatch(fetchConfigSuccess(getConfigData(false, ['Student', 'Moderator', 'Administrator'])));
-    renderComponent(true);
-    expect(screen.getByText(messages.shareFeedback.defaultMessage)
-      .closest('a'))
-      .toHaveAttribute('href', process.env.STAFF_FEEDBACK_FORM);
-  });
-
-  test('user with only isAdmin true are redirected to moderators feedback form', async () => {
-    store.dispatch(fetchConfigSuccess(getConfigData(true, ['Student'])));
-    renderComponent(true);
-    expect(screen.getByText(messages.shareFeedback.defaultMessage)
-      .closest('a'))
-      .toHaveAttribute('href', process.env.STAFF_FEEDBACK_FORM);
-  });
-});

src/discussions/discussions-home/InformationsBanner.jsx

@@ -1,64 +0,0 @@
-import React, { useState } from 'react';
-
-import { useSelector } from 'react-redux';
-
-import { injectIntl, intlShape } from '@edx/frontend-platform/i18n';
-import { Hyperlink, PageBanner } from '@edx/paragon';
-
-import { selectUserIsStaff, selectUserRoles } from '../data/selectors';
-import messages from '../messages';
-
-function InformationBanner({
-  intl,
-}) {
-  const [showBanner, setShowBanner] = useState(true);
-  const userRoles = useSelector(selectUserRoles);
-  const isAdmin = useSelector(selectUserIsStaff);
-  const learnMoreLink = 'https://openedx.atlassian.net/wiki/spaces/COMM/pages/3509551260/Overview+New+discussions+experience';
-  const TAFeedbackLink = process.env.TA_FEEDBACK_FORM;
-  const staffFeedbackLink = process.env.STAFF_FEEDBACK_FORM;
-  const hideLearnMoreButton = ((userRoles.includes('Student') && userRoles.length === 1) || !userRoles.length) && !isAdmin;
-  const showStaffLink = isAdmin || userRoles.includes('Moderator') || userRoles.includes('Administrator');
-
-  return (
-    <PageBanner
-      variant="light"
-      show={showBanner}
-      dismissible
-      onDismiss={() => setShowBanner(false)}
-    >
-      <div className="font-weight-500">
-        {intl.formatMessage(messages.bannerMessage)}
-        {!hideLearnMoreButton
-          && (
-            <Hyperlink
-              destination={learnMoreLink}
-              target="_blank"
-              showLaunchIcon={false}
-              className="pl-2.5"
-              variant="muted"
-              isInline
-            >
-              {intl.formatMessage(messages.learnMoreBannerLink)}
-            </Hyperlink>
-          )}
-        <Hyperlink
-          destination={showStaffLink ? staffFeedbackLink : TAFeedbackLink}
-          target="_blank"
-          showLaunchIcon={false}
-          variant="muted"
-          className="pl-2.5"
-          isInline
-        >
-          {intl.formatMessage(messages.shareFeedback)}
-        </Hyperlink>
-      </div>
-    </PageBanner>
-  );
-}
-
-InformationBanner.propTypes = {
-  intl: intlShape.isRequired,
-};
-
-export default injectIntl(InformationBanner);

src/discussions/empty-posts/EmptyLearners.jsx

@@ -1,25 +0,0 @@
-import React from 'react';
-
-import { injectIntl, intlShape } from '@edx/frontend-platform/i18n';
-
-import { useIsOnDesktop } from '../data/hooks';
-import messages from '../messages';
-import EmptyPage from './EmptyPage';
-
-function EmptyLearners({ intl }) {
-  const isOnDesktop = useIsOnDesktop();
-
-  if (!isOnDesktop) {
-    return null;
-  }
-
-  return (
-    <EmptyPage title={intl.formatMessage(messages.emptyTitle)} />
-  );
-}
-
-EmptyLearners.propTypes = {
-  intl: intlShape.isRequired,
-};
-
-export default injectIntl(EmptyLearners);

src/discussions/empty-posts/EmptyPage.jsx

@@ -15,7 +15,7 @@ function EmptyPage({
   fullWidth = false,
 }) {
   const containerClasses = classNames(
-    'min-content-height justify-content-center align-items-center d-flex w-100 flex-column pt-5',
+    'justify-content-center align-items-center d-flex w-100 flex-column pt-5',
     { 'bg-light-400': !fullWidth },
   );
 

src/discussions/empty-posts/index.js

@@ -1,4 +1,3 @@
-export { default as EmptyLearners } from './EmptyLearners';
 export { default as EmptyPage } from './EmptyPage';
 export { default as EmptyPosts } from './EmptyPosts';
 export { default as EmptyTopics } from './EmptyTopics';

src/discussions/learners/LearnerPageHeader.jsx

@@ -0,0 +1,70 @@
+import React, { useContext } from 'react';
+
+import classNames from 'classnames';
+import { useSelector } from 'react-redux';
+import { generatePath, NavLink } from 'react-router-dom';
+
+import { injectIntl, intlShape } from '@edx/frontend-platform/i18n';
+import { Avatar, ButtonGroup, Icon } from '@edx/paragon';
+import { Report } from '@edx/paragon/icons';
+
+import { Routes } from '../../data/constants';
+import { DiscussionContext } from '../common/context';
+import { selectLearner, selectLearnerAvatar, selectLearnerProfile } from './data/selectors';
+import messages from './messages';
+
+function LearnerPageHeader({ intl }) {
+  const { courseId, learnerUsername } = useContext(DiscussionContext);
+  const params = { courseId, learnerUsername };
+  const learner = useSelector(selectLearner(learnerUsername));
+  const profile = useSelector(selectLearnerProfile(learnerUsername));
+  const avatar = useSelector(selectLearnerAvatar(learnerUsername));
+
+  const activeTabClass = (active) => classNames('btn', { 'btn-primary': active, 'btn-outline-primary': !active });
+
+  return (
+    <div className="d-flex flex-column w-100 bg-white shadow-sm">
+      <div className="d-flex flex-row align-items-center m-4">
+        <Avatar src={avatar} alt={learnerUsername} />
+        <span className="font-weight-bold mx-3">
+          {profile.username}
+        </span>
+      </div>
+      <div className="d-flex pb-0 bg-light-200 justify-content-center p-2 flex-fill">
+        <ButtonGroup className="my-2 bg-white">
+          <NavLink
+            className={activeTabClass}
+            to={generatePath(Routes.LEARNERS.TABS.posts, params)}
+          >
+            {intl.formatMessage(messages.postsTab)} <span className="ml-3">{learner.threads}</span>
+            {
+              learner.activeFlags ? (
+                <span className="ml-3">
+                  <Icon src={Report} />
+                </span>
+              ) : null
+            }
+          </NavLink>
+          <NavLink
+            className={activeTabClass}
+            to={generatePath(Routes.LEARNERS.TABS.responses, params)}
+          >
+            {intl.formatMessage(messages.responsesTab)} <span className="ml-3">{learner.responses}</span>
+          </NavLink>
+          <NavLink
+            className={activeTabClass}
+            to={generatePath(Routes.LEARNERS.TABS.comments, params)}
+          >
+            {intl.formatMessage(messages.commentsTab)} <span className="ml-3">{learner.replies}</span>
+          </NavLink>
+        </ButtonGroup>
+      </div>
+    </div>
+  );
+}
+
+LearnerPageHeader.propTypes = {
+  intl: intlShape.isRequired,
+};
+
+export default injectIntl(LearnerPageHeader);

src/discussions/learners/LearnerPostsView.jsx

@@ -1,148 +0,0 @@
-import React, {
-  useCallback, useContext, useEffect, useMemo,
-} from 'react';
-
-import snakeCase from 'lodash.snakecase';
-import capitalize from 'lodash/capitalize';
-import { useDispatch, useSelector } from 'react-redux';
-import { useHistory, useLocation } from 'react-router-dom';
-
-import { injectIntl, intlShape } from '@edx/frontend-platform/i18n';
-import {
-  Button, Icon, IconButton, Spinner,
-} from '@edx/paragon';
-import { ArrowBack } from '@edx/paragon/icons';
-
-import {
-  PostsStatusFilter,
-  RequestStatus,
-  Routes,
-  ThreadType,
-} from '../../data/constants';
-import { DiscussionContext } from '../common/context';
-import { selectUserHasModerationPrivileges, selectUserIsStaff } from '../data/selectors';
-import {
-  selectAllThreads,
-  selectThreadNextPage,
-  threadsLoadingStatus,
-} from '../posts/data/selectors';
-import { clearPostsPages } from '../posts/data/slices';
-import NoResults from '../posts/NoResults';
-import { PostLink } from '../posts/post';
-import { discussionsPath, filterPosts } from '../utils';
-import { fetchUserPosts } from './data/thunks';
-import LearnerPostFilterBar from './learner-post-filter-bar/LearnerPostFilterBar';
-import messages from './messages';
-
-function LearnerPostsView({ intl }) {
-  const location = useLocation();
-  const history = useHistory();
-  const dispatch = useDispatch();
-
-  const posts = useSelector(selectAllThreads);
-  const loadingStatus = useSelector(threadsLoadingStatus());
-  const postFilter = useSelector(state => state.learners.postFilter);
-  const { courseId, learnerUsername: username } = useContext(DiscussionContext);
-  const nextPage = useSelector(selectThreadNextPage());
-  const userHasModerationPrivileges = useSelector(selectUserHasModerationPrivileges);
-  const userIsStaff = useSelector(selectUserIsStaff);
-  const countFlagged = userHasModerationPrivileges || userIsStaff;
-  const params = {
-    orderBy: snakeCase(postFilter.orderBy),
-    username,
-    page: 1,
-  };
-  if (postFilter.type !== ThreadType.ALL) {
-    params.threadType = postFilter.type;
-  }
-  if (postFilter.status !== PostsStatusFilter.ALL) {
-    const statusMapping = {
-      statusUnread: 'unread',
-      statusReported: 'flagged',
-      statusUnanswered: 'unanswered',
-      statusUnresponded: 'unresponded',
-    };
-    params.status = statusMapping[postFilter.status];
-  }
-  if (postFilter.cohort !== '') {
-    params.groupId = postFilter.cohort;
-  }
-  if (countFlagged) {
-    params.countFlagged = countFlagged;
-  }
-
-  useEffect(() => {
-    dispatch(fetchUserPosts(courseId, params));
-  }, [courseId, username]);
-
-  useEffect(() => {
-    dispatch(clearPostsPages());
-    dispatch(fetchUserPosts(courseId, params));
-  }, [postFilter]);
-
-  const loadMorePosts = () => (
-    dispatch(fetchUserPosts(courseId, {
-      ...params,
-      page: nextPage,
-    }))
-  );
-
-  const checkIsSelected = (id) => window.location.pathname.includes(id);
-  const pinnedPosts = useMemo(() => filterPosts(posts, 'pinned'), [posts]);
-  const unpinnedPosts = useMemo(() => filterPosts(posts, 'unpinned'), [posts]);
-
-  const postInstances = useCallback((sortedPosts) => (
-    sortedPosts.map((post, idx) => (
-      <PostLink
-        post={post}
-        key={post.id}
-        isSelected={checkIsSelected}
-        idx={idx}
-        showDivider={(sortedPosts.length - 1) !== idx}
-      />
-    ))
-  ), []);
-
-  return (
-    <div className="discussion-posts d-flex flex-column">
-      <div className="d-flex align-items-center justify-content-between px-2.5">
-        <IconButton
-          src={ArrowBack}
-          iconAs={Icon}
-          style={{ padding: '18px' }}
-          size="inline"
-          onClick={() => history.push(discussionsPath(Routes.LEARNERS.PATH, { courseId })(location))}
-          alt={intl.formatMessage(messages.back)}
-        />
-        <div className="text-primary-500 font-style-normal font-family-inter font-weight-bold py-2.5">
-          {intl.formatMessage(messages.activityForLearner, { username: capitalize(username) })}
-        </div>
-        <div style={{ padding: '18px' }} />
-      </div>
-      <div className="bg-light-400 border border-light-300" />
-      <LearnerPostFilterBar />
-      <div className="list-group list-group-flush">
-        {postInstances(pinnedPosts)}
-        {postInstances(unpinnedPosts)}
-        {loadingStatus !== RequestStatus.IN_PROGRESS && posts?.length === 0 && <NoResults />}
-        {loadingStatus === RequestStatus.IN_PROGRESS ? (
-          <div className="d-flex justify-content-center p-4">
-            <Spinner animation="border" variant="primary" size="lg" />
-          </div>
-        ) : (
-          nextPage && loadingStatus === RequestStatus.SUCCESSFUL && (
-            <Button onClick={() => loadMorePosts()} variant="primary" size="md">
-              {intl.formatMessage(messages.loadMore)}
-            </Button>
-          )
-        )}
-      </div>
-    </div>
-  );
-}
-
-LearnerPostsView.propTypes = {
-  intl: intlShape.isRequired,
-};
-
-export default injectIntl(LearnerPostsView);

src/discussions/learners/LearnerPostsView.test.jsx

@@ -1,90 +0,0 @@
-import React from 'react';
-
-import { render, screen } from '@testing-library/react';
-import MockAdapter from 'axios-mock-adapter';
-import { act } from 'react-dom/test-utils';
-import { IntlProvider } from 'react-intl';
-import { MemoryRouter, Route } from 'react-router';
-import { Factory } from 'rosie';
-
-import { initializeMockApp } from '@edx/frontend-platform';
-import { getAuthenticatedHttpClient } from '@edx/frontend-platform/auth';
-import { AppProvider } from '@edx/frontend-platform/react';
-
-import { initializeStore } from '../../store';
-import { executeThunk } from '../../test-utils';
-import { DiscussionContext } from '../common/context';
-import { courseConfigApiUrl } from '../data/api';
-import { fetchCourseConfig } from '../data/thunks';
-import { coursesApiUrl } from './data/api';
-import LearnerPostsView from './LearnerPostsView';
-
-import './data/__factories__';
-
-let store;
-let axiosMock;
-const courseId = 'course-v1:edX+TestX+Test_Course';
-const username = 'abc123';
-
-function renderComponent(path = `/${courseId}/learners/${username}/posts`) {
-  return render(
-    <IntlProvider locale="en">
-      <AppProvider store={store}>
-        <DiscussionContext.Provider
-          value={{
-            learnerUsername: username,
-            courseId,
-          }}
-        >
-          <MemoryRouter initialEntries={[path]}>
-            <Route path={path}>
-              <LearnerPostsView />
-            </Route>
-          </MemoryRouter>
-        </DiscussionContext.Provider>
-      </AppProvider>
-    </IntlProvider>,
-  );
-}
-
-describe('LearnerPostsView', () => {
-  beforeEach(async () => {
-    initializeMockApp({
-      authenticatedUser: {
-        userId: 3,
-        username,
-        administrator: true,
-        roles: [],
-      },
-    });
-
-    store = initializeStore();
-    Factory.resetAll();
-    const learnerPosts = Factory.build('learnerPosts', {}, {
-      abuseFlaggedCount: 1,
-    });
-    const apiUrl = `${coursesApiUrl}${courseId}/learner/`;
-    axiosMock = new MockAdapter(getAuthenticatedHttpClient());
-    axiosMock.onGet(apiUrl, { username, count_flagged: true })
-      .reply(() => [200, learnerPosts]);
-  });
-
-  describe('Basic', () => {
-    test('Reported icon is visible to moderator for post with reported comment', async () => {
-      axiosMock.onGet(`${courseConfigApiUrl}${courseId}/`).reply(200, {
-        has_moderation_privileges: true,
-      });
-      axiosMock.onGet(`${courseConfigApiUrl}${courseId}/settings`).reply(200, {});
-      await executeThunk(fetchCourseConfig(courseId), store.dispatch, store.getState);
-      await act(async () => {
-        renderComponent();
-      });
-      expect(screen.queryAllByTestId('reported-post')[0]).toBeInTheDocument();
-    });
-
-    test('Reported icon is not visible to learner for post with reported comment', async () => {
-      await renderComponent();
-      expect(screen.queryByTestId('reported-post')).not.toBeInTheDocument();
-    });
-  });
-});

src/discussions/learners/LearnersContentView.jsx

@@ -0,0 +1,53 @@
+import React, { useContext } from 'react';
+
+import { useSelector } from 'react-redux';
+import {
+  generatePath, Redirect, Route, Switch,
+} from 'react-router-dom';
+
+import { Spinner } from '@edx/paragon';
+
+import { LearnerTabs, RequestStatus, Routes } from '../../data/constants';
+import { DiscussionContext } from '../common/context';
+import { learnersLoadingStatus } from './data/selectors';
+import CommentsTabContent from './learner/CommentsTabContent';
+import PostsTabContent from './learner/PostsTabContent';
+
+function LearnersContentView() {
+  const { courseId, learnerUsername } = useContext(DiscussionContext);
+  const params = { courseId, learnerUsername };
+  const apiStatus = useSelector(learnersLoadingStatus());
+
+  return (
+    <div className="learner-content d-flex flex-column">
+      <Switch>
+        <Route path={Routes.LEARNERS.LEARNER} exact>
+          <Redirect to={generatePath(Routes.LEARNERS.TABS.posts, params)} />
+        </Route>
+        <Route
+          path={Routes.LEARNERS.TABS.posts}
+          component={PostsTabContent}
+        />
+        <Route path={Routes.LEARNERS.TABS.responses}>
+          <CommentsTabContent tab={LearnerTabs.RESPONSES} />
+        </Route>
+        <Route path={Routes.LEARNERS.TABS.comments}>
+          <CommentsTabContent tab={LearnerTabs.COMMENTS} />
+        </Route>
+      </Switch>
+
+      {
+        apiStatus === RequestStatus.IN_PROGRESS && (
+          <div className="my-3 text-center">
+            <Spinner animation="border" className="mie-3" />
+          </div>
+        )
+      }
+    </div>
+  );
+}
+
+LearnersContentView.propTypes = {
+};
+
+export default LearnersContentView;

src/discussions/learners/LearnersContentView.test.jsx

@@ -0,0 +1,176 @@
+import React from 'react';
+
+import { fireEvent, render, screen } from '@testing-library/react';
+import MockAdapter from 'axios-mock-adapter';
+import { act } from 'react-dom/test-utils';
+import { IntlProvider } from 'react-intl';
+import { MemoryRouter, Route } from 'react-router';
+import { Factory } from 'rosie';
+
+import { initializeMockApp } from '@edx/frontend-platform';
+import { getAuthenticatedHttpClient } from '@edx/frontend-platform/auth';
+import { AppProvider } from '@edx/frontend-platform/react';
+
+import { LearnerTabs } from '../../data/constants';
+import { initializeStore } from '../../store';
+import { executeThunk } from '../../test-utils';
+import { commentsApiUrl } from '../comments/data/api';
+import { DiscussionContext } from '../common/context';
+import DiscussionContent from '../discussions-home/DiscussionContent';
+import { threadsApiUrl } from '../posts/data/api';
+import { coursesApiUrl, userProfileApiUrl } from './data/api';
+import { fetchLearners } from './data/thunks';
+
+import '../comments/data/__factories__';
+import '../posts/data/__factories__';
+import './data/__factories__';
+
+let store;
+let axiosMock;
+const courseId = 'course-v1:edX+TestX+Test_Course';
+const testUsername = 'leaner-1';
+
+function renderComponent(username = testUsername) {
+  return render(
+    <IntlProvider locale="en">
+      <AppProvider store={store}>
+        <DiscussionContext.Provider value={{ learnerUsername: username, courseId }}>
+          <MemoryRouter initialEntries={[`/${courseId}/learners/${username}/${LearnerTabs.POSTS}`]}>
+            <Route path="/:courseId/learners/:learnerUsername">
+              <DiscussionContent />
+            </Route>
+          </MemoryRouter>
+        </DiscussionContext.Provider>
+      </AppProvider>
+    </IntlProvider>,
+  );
+}
+
+describe('LearnersContentView', () => {
+  const learnerCount = 1;
+
+  beforeEach(async () => {
+    initializeMockApp({
+      authenticatedUser: {
+        userId: 3,
+        username: 'abc123',
+        administrator: true,
+        roles: [],
+      },
+    });
+
+    axiosMock = new MockAdapter(getAuthenticatedHttpClient());
+    store = initializeStore({});
+    Factory.resetAll();
+
+    axiosMock.onGet(`${coursesApiUrl}${courseId}/activity_stats/`)
+      .reply(
+        200,
+        Factory.build('learnersResult', {}, {
+          count: learnerCount,
+          pageSize: 5,
+        }),
+      );
+
+    axiosMock.onGet(`${userProfileApiUrl}?username=${testUsername}`)
+      .reply(
+        200,
+        Factory.build('learnersProfile', {}, {
+          username: [testUsername],
+        }).profiles,
+      );
+    await executeThunk(fetchLearners(courseId), store.dispatch, store.getState);
+
+    axiosMock.onGet(threadsApiUrl)
+      .reply(200, Factory.build('threadsResult', {}, {
+        topicId: undefined,
+        count: 6,
+        pageSize: 5,
+      }));
+
+    axiosMock.onGet(commentsApiUrl)
+      .reply(200, Factory.build('commentsResult', {}, {
+        count: 9,
+        pageSize: 8,
+      }));
+  });
+
+  test('it loads the posts view by default', async () => {
+    await act(async () => {
+      await renderComponent();
+    });
+    expect(screen.queryAllByTestId('post')).toHaveLength(5);
+    expect(screen.queryAllByText('This is Thread', { exact: false })).toHaveLength(5);
+  });
+
+  test('it renders all the comments WITHOUT parent id in responses tab', async () => {
+    await act(async () => {
+      await renderComponent();
+    });
+    await act(async () => {
+      fireEvent.click(screen.getByText('Responses', { exact: false }));
+    });
+
+    expect(screen.queryAllByText('comment number', { exact: false })).toHaveLength(8);
+  });
+
+  test('it renders all the comments with parent id in comments tab', async () => {
+    axiosMock.onGet(commentsApiUrl)
+      .reply(200, Factory.build('commentsResult', {}, {
+        count: 4,
+        parentId: 'test_parent_id',
+      }));
+    await act(async () => {
+      await renderComponent();
+    });
+    await act(async () => {
+      fireEvent.click(screen.getByRole('link', { name: /Comments \d+/i }));
+    });
+    expect(screen.queryAllByText('comment number', { exact: false })).toHaveLength(4);
+  });
+
+  test('it can switch back to the posts tab', async () => {
+    await act(async () => {
+      await renderComponent();
+    });
+    await act(async () => {
+      fireEvent.click(screen.getByRole('link', { name: /Responses \d+/i }));
+    });
+    expect(screen.queryAllByText('comment number', { exact: false })).toHaveLength(8);
+
+    await act(async () => {
+      fireEvent.click(screen.getByRole('link', { name: /Posts \d+/i }));
+    });
+    expect(screen.queryAllByTestId('post')).toHaveLength(5);
+  });
+
+  describe('Posts Tab Button', () => {
+    it('does not show Report Icon when the learner has NO active flags', async () => {
+      await act(async () => {
+        await renderComponent('leaner-2');
+      });
+      const button = screen.getByRole('link', { name: /Posts/i });
+      expect(button.innerHTML).not.toContain('svg');
+    });
+
+    it('shows the Report Icon when the learner has active Flags', async () => {
+      axiosMock.onGet(`${coursesApiUrl}${courseId}/activity_stats/`)
+        .reply(() => [200, Factory.build('learnersResult', {}, {
+          count: 1,
+          pageSize: 5,
+          activeFlags: 1,
+        })]);
+      axiosMock.onGet(`${userProfileApiUrl}?username=leaner-2`)
+        .reply(() => [200, Factory.build('learnersProfile', {}, {
+          username: ['leaner-2'],
+        }).profiles]);
+      await executeThunk(fetchLearners(courseId), store.dispatch, store.getState);
+
+      await act(async () => {
+        await renderComponent('leaner-2');
+      });
+      const button = screen.getByRole('link', { name: /Posts/i });
+      expect(button.innerHTML).toContain('svg');
+    });
+  });
+});

src/discussions/learners/LearnersView.jsx

@@ -5,70 +5,49 @@ import {
   Redirect, useLocation, useParams,
 } from 'react-router';
 
-import { injectIntl, intlShape } from '@edx/frontend-platform/i18n';
+import { Spinner } from '@edx/paragon';
-import { Button, Spinner } from '@edx/paragon';
 
-import SearchInfo from '../../components/SearchInfo';
+import ScrollThreshold from '../../components/ScrollThreshold';
 import { RequestStatus, Routes } from '../../data/constants';
 import { selectconfigLoadingStatus, selectLearnersTabEnabled } from '../data/selectors';
-import NoResults from '../posts/NoResults';
 import {
   learnersLoadingStatus,
   selectAllLearners,
   selectLearnerNextPage,
   selectLearnerSorting,
-  selectUsernameSearch,
 } from './data/selectors';
-import { setUsernameSearch } from './data/slices';
 import { fetchLearners } from './data/thunks';
-import { LearnerCard, LearnerFilterBar } from './learner';
+import { LearnerCard } from './learner';
-import messages from './messages';
 
-function LearnersView({ intl }) {
+function LearnersView() {
-  const { courseId } = useParams();
+  const {
+    courseId,
+  } = useParams();
   const location = useLocation();
   const dispatch = useDispatch();
   const orderBy = useSelector(selectLearnerSorting());
   const nextPage = useSelector(selectLearnerNextPage());
   const loadingStatus = useSelector(learnersLoadingStatus());
-  const usernameSearch = useSelector(selectUsernameSearch());
   const courseConfigLoadingStatus = useSelector(selectconfigLoadingStatus);
   const learnersTabEnabled = useSelector(selectLearnersTabEnabled);
   const learners = useSelector(selectAllLearners);
-
   useEffect(() => {
     if (learnersTabEnabled) {
-      if (usernameSearch) {
+      dispatch(fetchLearners(courseId, { orderBy }));
-        dispatch(fetchLearners(courseId, { orderBy, usernameSearch }));
-      } else {
-        dispatch(fetchLearners(courseId, { orderBy }));
-      }
     }
-  }, [courseId, orderBy, learnersTabEnabled, usernameSearch]);
+  }, [courseId, orderBy, learnersTabEnabled]);
 
   const loadPage = async () => {
     if (nextPage) {
       dispatch(fetchLearners(courseId, {
         orderBy,
         page: nextPage,
-        usernameSearch,
       }));
     }
   };
-
   return (
-    <div className="d-flex flex-column border-right border-light-400">
+    <div className="d-flex flex-column border-right border-light-300 h-100">
-      {!usernameSearch && <LearnerFilterBar /> }
+      <div className="list-group list-group-flush ">
-      <div className="border-bottom border-light-400" />
-      {usernameSearch && (
-        <SearchInfo
-          text={usernameSearch}
-          count={learners.length}
-          loadingStatus={loadingStatus}
-          onClear={() => dispatch(setUsernameSearch(''))}
-        />
-      )}
-      <div className="list-group list-group-flush learner" role="list">
         {courseConfigLoadingStatus === RequestStatus.SUCCESSFUL && !learnersTabEnabled && (
         <Redirect
           to={{
@@ -77,31 +56,21 @@ function LearnersView({ intl }) {
           }}
         />
         )}
-        {courseConfigLoadingStatus === RequestStatus.SUCCESSFUL
+        {courseConfigLoadingStatus === RequestStatus.SUCCESSFUL && learnersTabEnabled && learners.map((learner) => (
-          && learnersTabEnabled
+          <LearnerCard learner={learner} key={learner.username} courseId={courseId} />
-          && learners.map((learner, index) => (
+        ))}
-            // eslint-disable-next-line react/no-array-index-key
-            <LearnerCard learner={learner} key={index} courseId={courseId} />
-          ))}
         {loadingStatus === RequestStatus.IN_PROGRESS ? (
           <div className="d-flex justify-content-center p-4">
             <Spinner animation="border" variant="primary" size="lg" />
           </div>
         ) : (
-          nextPage && loadingStatus === RequestStatus.SUCCESSFUL && (
+          nextPage && (
-            <Button onClick={() => loadPage()} variant="primary" size="md">
+            <ScrollThreshold onScroll={loadPage} />
-              {intl.formatMessage(messages.loadMore)}
-            </Button>
           )
         )}
-        { usernameSearch !== '' && learners.length === 0 && loadingStatus === RequestStatus.SUCCESSFUL && <NoResults />}
       </div>
     </div>
   );
 }
 
-LearnersView.propTypes = {
+export default LearnersView;
-  intl: intlShape.isRequired,
-};
-
-export default injectIntl(LearnersView);