Add list of lists component to web UI (#5811)

* Add list of lists component to web UI

* Add list adding

* Add list removing

* List editor modal

* Add API account search limited by following=true relation

* Rework list editor modal

* Remove mandatory pagination of GET /api/v1/lists/:id/accounts

* Adjust search input placeholder

* Fix rspec (#5890)

* i18n: (zh-CN) Add missing translations for #5811 (#5891)

* i18n: (zh-CN) yarn manage:translations -- zh-CN

* i18n: (zh-CN) Add missing translations for #5811

* Fix some issues

- Display loading/missing state for list timelines
- Order lists alphabetically in overview
- Fix async list editor reset
- Redirect to /lists after deleting unpinned list
- Redirect to / after pinning a list

* Remove dead list columns when a list is deleted or fetch returns 404

27 files changed, 1074 insertions, 42 deletions

diff --git a/app/controllers/api/v1/accounts/search_controller.rb b/app/controllers/api/v1/accounts/search_controller.rb
index 2a5cac547..11e647c3c 100644
--- a/app/controllers/api/v1/accounts/search_controller.rb
+++ b/app/controllers/api/v1/accounts/search_controller.rb
@@ -17,12 +17,13 @@ class Api::V1::Accounts::SearchController < Api::BaseController
     AccountSearchService.new.call(
       params[:q],
       limit_param(DEFAULT_ACCOUNTS_LIMIT),
-      resolving_search?,
-      current_account
+      current_account,
+      resolve: truthy_param?(:resolve),
+      following: truthy_param?(:following)
     )
   end
 
-  def resolving_search?
-    params[:resolve] == 'true'
+  def truthy_param?(key)
+    params[key] == 'true'
   end
 end
diff --git a/app/controllers/api/v1/lists/accounts_controller.rb b/app/controllers/api/v1/lists/accounts_controller.rb
index 40c485e8d..c29c73b3e 100644
--- a/app/controllers/api/v1/lists/accounts_controller.rb
+++ b/app/controllers/api/v1/lists/accounts_controller.rb
@@ -10,7 +10,7 @@ class Api::V1::Lists::AccountsController < Api::BaseController
   after_action :insert_pagination_headers, only: :show
 
   def show
-    @accounts = @list.accounts.paginate_by_max_id(limit_param(DEFAULT_ACCOUNTS_LIMIT), params[:max_id], params[:since_id])
+    @accounts = load_accounts
     render json: @accounts, each_serializer: REST::AccountSerializer
   end
 
@@ -35,6 +35,14 @@ class Api::V1::Lists::AccountsController < Api::BaseController
     @list = List.where(account: current_account).find(params[:list_id])
   end
 
+  def load_accounts
+    if unlimited?
+      @list.accounts.all
+    else
+      @list.accounts.paginate_by_max_id(limit_param(DEFAULT_ACCOUNTS_LIMIT), params[:max_id], params[:since_id])
+    end
+  end
+
   def list_accounts
     Account.find(account_ids)
   end
@@ -52,12 +60,16 @@ class Api::V1::Lists::AccountsController < Api::BaseController
   end
 
   def next_path
+    return if unlimited?
+
     if records_continue?
       api_v1_list_accounts_url pagination_params(max_id: pagination_max_id)
     end
   end
 
   def prev_path
+    return if unlimited?
+
     unless @accounts.empty?
       api_v1_list_accounts_url pagination_params(since_id: pagination_since_id)
     end
@@ -78,4 +90,8 @@ class Api::V1::Lists::AccountsController < Api::BaseController
   def pagination_params(core_params)
     params.permit(:limit).merge(core_params)
   end
+
+  def unlimited?
+    params[:limit] == '0'
+  end
 end
diff --git a/app/javascript/mastodon/actions/lists.js b/app/javascript/mastodon/actions/lists.js
index 332e42166..4c8f9b186 100644
--- a/app/javascript/mastodon/actions/lists.js
+++ b/app/javascript/mastodon/actions/lists.js
@@ -4,12 +4,52 @@ export const LIST_FETCH_REQUEST = 'LIST_FETCH_REQUEST';
 export const LIST_FETCH_SUCCESS = 'LIST_FETCH_SUCCESS';
 export const LIST_FETCH_FAIL    = 'LIST_FETCH_FAIL';
 
+export const LISTS_FETCH_REQUEST = 'LISTS_FETCH_REQUEST';
+export const LISTS_FETCH_SUCCESS = 'LISTS_FETCH_SUCCESS';
+export const LISTS_FETCH_FAIL    = 'LISTS_FETCH_FAIL';
+
+export const LIST_EDITOR_TITLE_CHANGE = 'LIST_EDITOR_TITLE_CHANGE';
+export const LIST_EDITOR_RESET        = 'LIST_EDITOR_RESET';
+export const LIST_EDITOR_SETUP        = 'LIST_EDITOR_SETUP';
+
+export const LIST_CREATE_REQUEST = 'LIST_CREATE_REQUEST';
+export const LIST_CREATE_SUCCESS = 'LIST_CREATE_SUCCESS';
+export const LIST_CREATE_FAIL    = 'LIST_CREATE_FAIL';
+
+export const LIST_UPDATE_REQUEST = 'LIST_UPDATE_REQUEST';
+export const LIST_UPDATE_SUCCESS = 'LIST_UPDATE_SUCCESS';
+export const LIST_UPDATE_FAIL    = 'LIST_UPDATE_FAIL';
+
+export const LIST_DELETE_REQUEST = 'LIST_DELETE_REQUEST';
+export const LIST_DELETE_SUCCESS = 'LIST_DELETE_SUCCESS';
+export const LIST_DELETE_FAIL    = 'LIST_DELETE_FAIL';
+
+export const LIST_ACCOUNTS_FETCH_REQUEST = 'LIST_ACCOUNTS_FETCH_REQUEST';
+export const LIST_ACCOUNTS_FETCH_SUCCESS = 'LIST_ACCOUNTS_FETCH_SUCCESS';
+export const LIST_ACCOUNTS_FETCH_FAIL    = 'LIST_ACCOUNTS_FETCH_FAIL';
+
+export const LIST_EDITOR_SUGGESTIONS_CHANGE = 'LIST_EDITOR_SUGGESTIONS_CHANGE';
+export const LIST_EDITOR_SUGGESTIONS_READY  = 'LIST_EDITOR_SUGGESTIONS_READY';
+export const LIST_EDITOR_SUGGESTIONS_CLEAR  = 'LIST_EDITOR_SUGGESTIONS_CLEAR';
+
+export const LIST_EDITOR_ADD_REQUEST = 'LIST_EDITOR_ADD_REQUEST';
+export const LIST_EDITOR_ADD_SUCCESS = 'LIST_EDITOR_ADD_SUCCESS';
+export const LIST_EDITOR_ADD_FAIL    = 'LIST_EDITOR_ADD_FAIL';
+
+export const LIST_EDITOR_REMOVE_REQUEST = 'LIST_EDITOR_REMOVE_REQUEST';
+export const LIST_EDITOR_REMOVE_SUCCESS = 'LIST_EDITOR_REMOVE_SUCCESS';
+export const LIST_EDITOR_REMOVE_FAIL    = 'LIST_EDITOR_REMOVE_FAIL';
+
 export const fetchList = id => (dispatch, getState) => {
+  if (getState().getIn(['lists', id])) {
+    return;
+  }
+
   dispatch(fetchListRequest(id));
 
   api(getState).get(`/api/v1/lists/${id}`)
     .then(({ data }) => dispatch(fetchListSuccess(data)))
-    .catch(err => dispatch(fetchListFail(err)));
+    .catch(err => dispatch(fetchListFail(id, err)));
 };
 
 export const fetchListRequest = id => ({
@@ -22,7 +62,252 @@ export const fetchListSuccess = list => ({
   list,
 });
 
-export const fetchListFail = error => ({
+export const fetchListFail = (id, error) => ({
   type: LIST_FETCH_FAIL,
+  id,
+  error,
+});
+
+export const fetchLists = () => (dispatch, getState) => {
+  dispatch(fetchListsRequest());
+
+  api(getState).get('/api/v1/lists')
+    .then(({ data }) => dispatch(fetchListsSuccess(data)))
+    .catch(err => dispatch(fetchListsFail(err)));
+};
+
+export const fetchListsRequest = () => ({
+  type: LISTS_FETCH_REQUEST,
+});
+
+export const fetchListsSuccess = lists => ({
+  type: LISTS_FETCH_SUCCESS,
+  lists,
+});
+
+export const fetchListsFail = error => ({
+  type: LISTS_FETCH_FAIL,
+  error,
+});
+
+export const submitListEditor = shouldReset => (dispatch, getState) => {
+  const listId = getState().getIn(['listEditor', 'listId']);
+  const title  = getState().getIn(['listEditor', 'title']);
+
+  if (listId === null) {
+    dispatch(createList(title, shouldReset));
+  } else {
+    dispatch(updateList(listId, title, shouldReset));
+  }
+};
+
+export const setupListEditor = listId => (dispatch, getState) => {
+  dispatch({
+    type: LIST_EDITOR_SETUP,
+    list: getState().getIn(['lists', listId]),
+  });
+
+  dispatch(fetchListAccounts(listId));
+};
+
+export const changeListEditorTitle = value => ({
+  type: LIST_EDITOR_TITLE_CHANGE,
+  value,
+});
+
+export const createList = (title, shouldReset) => (dispatch, getState) => {
+  dispatch(createListRequest());
+
+  api(getState).post('/api/v1/lists', { title }).then(({ data }) => {
+    dispatch(createListSuccess(data));
+
+    if (shouldReset) {
+      dispatch(resetListEditor());
+    }
+  }).catch(err => dispatch(createListFail(err)));
+};
+
+export const createListRequest = () => ({
+  type: LIST_CREATE_REQUEST,
+});
+
+export const createListSuccess = list => ({
+  type: LIST_CREATE_SUCCESS,
+  list,
+});
+
+export const createListFail = error => ({
+  type: LIST_CREATE_FAIL,
+  error,
+});
+
+export const updateList = (id, title, shouldReset) => (dispatch, getState) => {
+  dispatch(updateListRequest(id));
+
+  api(getState).put(`/api/v1/lists/${id}`, { title }).then(({ data }) => {
+    dispatch(updateListSuccess(data));
+
+    if (shouldReset) {
+      dispatch(resetListEditor());
+    }
+  }).catch(err => dispatch(updateListFail(id, err)));
+};
+
+export const updateListRequest = id => ({
+  type: LIST_UPDATE_REQUEST,
+  id,
+});
+
+export const updateListSuccess = list => ({
+  type: LIST_UPDATE_SUCCESS,
+  list,
+});
+
+export const updateListFail = (id, error) => ({
+  type: LIST_UPDATE_FAIL,
+  id,
+  error,
+});
+
+export const resetListEditor = () => ({
+  type: LIST_EDITOR_RESET,
+});
+
+export const deleteList = id => (dispatch, getState) => {
+  dispatch(deleteListRequest(id));
+
+  api(getState).delete(`/api/v1/lists/${id}`)
+    .then(() => dispatch(deleteListSuccess(id)))
+    .catch(err => dispatch(deleteListFail(id, err)));
+};
+
+export const deleteListRequest = id => ({
+  type: LIST_DELETE_REQUEST,
+  id,
+});
+
+export const deleteListSuccess = id => ({
+  type: LIST_DELETE_SUCCESS,
+  id,
+});
+
+export const deleteListFail = (id, error) => ({
+  type: LIST_DELETE_FAIL,
+  id,
+  error,
+});
+
+export const fetchListAccounts = listId => (dispatch, getState) => {
+  dispatch(fetchListAccountsRequest(listId));
+
+  api(getState).get(`/api/v1/lists/${listId}/accounts`, { params: { limit: 0 } })
+    .then(({ data }) => dispatch(fetchListAccountsSuccess(listId, data)))
+    .catch(err => dispatch(fetchListAccountsFail(listId, err)));
+};
+
+export const fetchListAccountsRequest = id => ({
+  type: LIST_ACCOUNTS_FETCH_REQUEST,
+  id,
+});
+
+export const fetchListAccountsSuccess = (id, accounts, next) => ({
+  type: LIST_ACCOUNTS_FETCH_SUCCESS,
+  id,
+  accounts,
+  next,
+});
+
+export const fetchListAccountsFail = (id, error) => ({
+  type: LIST_ACCOUNTS_FETCH_FAIL,
+  id,
+  error,
+});
+
+export const fetchListSuggestions = q => (dispatch, getState) => {
+  const params = {
+    q,
+    resolve: false,
+    limit: 4,
+    following: true,
+  };
+
+  api(getState).get('/api/v1/accounts/search', { params })
+    .then(({ data }) => dispatch(fetchListSuggestionsReady(q, data)));
+};
+
+export const fetchListSuggestionsReady = (query, accounts) => ({
+  type: LIST_EDITOR_SUGGESTIONS_READY,
+  query,
+  accounts,
+});
+
+export const clearListSuggestions = () => ({
+  type: LIST_EDITOR_SUGGESTIONS_CLEAR,
+});
+
+export const changeListSuggestions = value => ({
+  type: LIST_EDITOR_SUGGESTIONS_CHANGE,
+  value,
+});
+
+export const addToListEditor = accountId => (dispatch, getState) => {
+  dispatch(addToList(getState().getIn(['listEditor', 'listId']), accountId));
+};
+
+export const addToList = (listId, accountId) => (dispatch, getState) => {
+  dispatch(addToListRequest(listId, accountId));
+
+  api(getState).post(`/api/v1/lists/${listId}/accounts`, { account_ids: [accountId] })
+    .then(() => dispatch(addToListSuccess(listId, accountId)))
+    .catch(err => dispatch(addToListFail(listId, accountId, err)));
+};
+
+export const addToListRequest = (listId, accountId) => ({
+  type: LIST_EDITOR_ADD_REQUEST,
+  listId,
+  accountId,
+});
+
+export const addToListSuccess = (listId, accountId) => ({
+  type: LIST_EDITOR_ADD_SUCCESS,
+  listId,
+  accountId,
+});
+
+export const addToListFail = (listId, accountId, error) => ({
+  type: LIST_EDITOR_ADD_FAIL,
+  listId,
+  accountId,
+  error,
+});
+
+export const removeFromListEditor = accountId => (dispatch, getState) => {
+  dispatch(removeFromList(getState().getIn(['listEditor', 'listId']), accountId));
+};
+
+export const removeFromList = (listId, accountId) => (dispatch, getState) => {
+  dispatch(removeFromListRequest(listId, accountId));
+
+  api(getState).delete(`/api/v1/lists/${listId}/accounts`, { params: { account_ids: [accountId] } })
+    .then(() => dispatch(removeFromListSuccess(listId, accountId)))
+    .catch(err => dispatch(removeFromListFail(listId, accountId, err)));
+};
+
+export const removeFromListRequest = (listId, accountId) => ({
+  type: LIST_EDITOR_REMOVE_REQUEST,
+  listId,
+  accountId,
+});
+
+export const removeFromListSuccess = (listId, accountId) => ({
+  type: LIST_EDITOR_REMOVE_SUCCESS,
+  listId,
+  accountId,
+});
+
+export const removeFromListFail = (listId, accountId, error) => ({
+  type: LIST_EDITOR_REMOVE_FAIL,
+  listId,
+  accountId,
   error,
 });
diff --git a/app/javascript/mastodon/features/getting_started/index.js b/app/javascript/mastodon/features/getting_started/index.js
index df4284207..4b4c02bcc 100644
--- a/app/javascript/mastodon/features/getting_started/index.js
+++ b/app/javascript/mastodon/features/getting_started/index.js
@@ -25,6 +25,7 @@ const messages = defineMessages({
   mutes: { id: 'navigation_bar.mutes', defaultMessage: 'Muted users' },
   info: { id: 'navigation_bar.info', defaultMessage: 'Extended information' },
   pins: { id: 'navigation_bar.pins', defaultMessage: 'Pinned toots' },
+  lists: { id: 'navigation_bar.lists', defaultMessage: 'Lists' },
   keyboard_shortcuts: { id: 'navigation_bar.keyboard_shortcuts', defaultMessage: 'Keyboard shortcuts' },
 });
 
@@ -70,6 +71,7 @@ export default class GettingStarted extends ImmutablePureComponent {
     navItems = navItems.concat([
       <ColumnLink key='4' icon='star' text={intl.formatMessage(messages.favourites)} to='/favourites' />,
       <ColumnLink key='5' icon='thumb-tack' text={intl.formatMessage(messages.pins)} to='/pinned' />,
+      <ColumnLink key='9' icon='bars' text={intl.formatMessage(messages.lists)} to='/lists' />,
     ]);
 
     if (myAccount.get('locked')) {
@@ -79,7 +81,7 @@ export default class GettingStarted extends ImmutablePureComponent {
     navItems = navItems.concat([
       <ColumnLink key='7' icon='volume-off' text={intl.formatMessage(messages.mutes)} to='/mutes' />,
       <ColumnLink key='8' icon='ban' text={intl.formatMessage(messages.blocks)} to='/blocks' />,
-      <ColumnLink key='9' icon='question' text={intl.formatMessage(messages.keyboard_shortcuts)} to='/keyboard-shortcuts' hideOnMobile />,
+      <ColumnLink key='10' icon='question' text={intl.formatMessage(messages.keyboard_shortcuts)} to='/keyboard-shortcuts' hideOnMobile />,
     ]);
 
     return (
diff --git a/app/javascript/mastodon/features/list_editor/components/account.js b/app/javascript/mastodon/features/list_editor/components/account.js
new file mode 100644
index 000000000..c78c58e24
--- /dev/null
+++ b/app/javascript/mastodon/features/list_editor/components/account.js
@@ -0,0 +1,77 @@
+import React from 'react';
+import PropTypes from 'prop-types';
+import { connect } from 'react-redux';
+import { makeGetAccount } from '../../../selectors';
+import ImmutablePureComponent from 'react-immutable-pure-component';
+import ImmutablePropTypes from 'react-immutable-proptypes';
+import Avatar from '../../../components/avatar';
+import DisplayName from '../../../components/display_name';
+import IconButton from '../../../components/icon_button';
+import { defineMessages, injectIntl } from 'react-intl';
+import { removeFromListEditor, addToListEditor } from '../../../actions/lists';
+
+const messages = defineMessages({
+  remove: { id: 'lists.account.remove', defaultMessage: 'Remove from list' },
+  add: { id: 'lists.account.add', defaultMessage: 'Add to list' },
+});
+
+const makeMapStateToProps = () => {
+  const getAccount = makeGetAccount();
+
+  const mapStateToProps = (state, { accountId, added }) => ({
+    account: getAccount(state, accountId),
+    added: typeof added === 'undefined' ? state.getIn(['listEditor', 'accounts', 'items']).includes(accountId) : added,
+  });
+
+  return mapStateToProps;
+};
+
+const mapDispatchToProps = (dispatch, { accountId }) => ({
+  onRemove: () => dispatch(removeFromListEditor(accountId)),
+  onAdd: () => dispatch(addToListEditor(accountId)),
+});
+
+@connect(makeMapStateToProps, mapDispatchToProps)
+@injectIntl
+export default class Account extends ImmutablePureComponent {
+
+  static propTypes = {
+    account: ImmutablePropTypes.map.isRequired,
+    intl: PropTypes.object.isRequired,
+    onRemove: PropTypes.func.isRequired,
+    onAdd: PropTypes.func.isRequired,
+    added: PropTypes.bool,
+  };
+
+  static defaultProps = {
+    added: false,
+  };
+
+  render () {
+    const { account, intl, onRemove, onAdd, added } = this.props;
+
+    let button;
+
+    if (added) {
+      button = <IconButton icon='times' title={intl.formatMessage(messages.remove)} onClick={onRemove} />;
+    } else {
+      button = <IconButton icon='plus' title={intl.formatMessage(messages.add)} onClick={onAdd} />;
+    }
+
+    return (
+      <div className='account'>
+        <div className='account__wrapper'>
+          <div className='account__display-name'>
+            <div className='account__avatar-wrapper'><Avatar account={account} size={36} /></div>
+            <DisplayName account={account} />
+          </div>
+
+          <div className='account__relationship'>
+            {button}
+          </div>
+        </div>
+      </div>
+    );
+  }
+
+}
diff --git a/app/javascript/mastodon/features/list_editor/components/search.js b/app/javascript/mastodon/features/list_editor/components/search.js
new file mode 100644
index 000000000..45c4d0f2e
--- /dev/null
+++ b/app/javascript/mastodon/features/list_editor/components/search.js
@@ -0,0 +1,75 @@
+import React from 'react';
+import PropTypes from 'prop-types';
+import { connect } from 'react-redux';
+import { defineMessages, injectIntl } from 'react-intl';
+import { fetchListSuggestions, clearListSuggestions, changeListSuggestions } from '../../../actions/lists';
+import classNames from 'classnames';
+
+const messages = defineMessages({
+  search: { id: 'lists.search', defaultMessage: 'Search among people you follow' },
+});
+
+const mapStateToProps = state => ({
+  value: state.getIn(['listEditor', 'suggestions', 'value']),
+});
+
+const mapDispatchToProps = dispatch => ({
+  onSubmit: value => dispatch(fetchListSuggestions(value)),
+  onClear: () => dispatch(clearListSuggestions()),
+  onChange: value => dispatch(changeListSuggestions(value)),
+});
+
+@connect(mapStateToProps, mapDispatchToProps)
+@injectIntl
+export default class Search extends React.PureComponent {
+
+  static propTypes = {
+    intl: PropTypes.object.isRequired,
+    value: PropTypes.string.isRequired,
+    onChange: PropTypes.func.isRequired,
+    onSubmit: PropTypes.func.isRequired,
+    onClear: PropTypes.func.isRequired,
+  };
+
+  handleChange = e => {
+    this.props.onChange(e.target.value);
+  }
+
+  handleKeyUp = e => {
+    if (e.keyCode === 13) {
+      this.props.onSubmit(this.props.value);
+    }
+  }
+
+  handleClear = () => {
+    this.props.onClear();
+  }
+
+  render () {
+    const { value, intl } = this.props;
+    const hasValue = value.length > 0;
+
+    return (
+      <div className='list-editor__search search'>
+        <label>
+          <span style={{ display: 'none' }}>{intl.formatMessage(messages.search)}</span>
+
+          <input
+            className='search__input'
+            type='text'
+            value={value}
+            onChange={this.handleChange}
+            onKeyUp={this.handleKeyUp}
+            placeholder={intl.formatMessage(messages.search)}
+          />
+        </label>
+
+        <div role='button' tabIndex='0' className='search__icon' onClick={this.handleClear}>
+          <i className={classNames('fa fa-search', { active: !hasValue })} />
+          <i aria-label={intl.formatMessage(messages.search)} className={classNames('fa fa-times-circle', { active: hasValue })} />
+        </div>
+      </div>
+    );
+  }
+
+}
diff --git a/app/javascript/mastodon/features/list_editor/index.js b/app/javascript/mastodon/features/list_editor/index.js
new file mode 100644
index 000000000..a3b60e447
--- /dev/null
+++ b/app/javascript/mastodon/features/list_editor/index.js
@@ -0,0 +1,80 @@
+import React from 'react';
+import PropTypes from 'prop-types';
+import ImmutablePropTypes from 'react-immutable-proptypes';
+import { connect } from 'react-redux';
+import ImmutablePureComponent from 'react-immutable-pure-component';
+import { injectIntl } from 'react-intl';
+import { setupListEditor, clearListSuggestions, resetListEditor } from '../../actions/lists';
+import Account from './components/account';
+import Search from './components/search';
+import Motion from '../ui/util/optional_motion';
+import spring from 'react-motion/lib/spring';
+
+const mapStateToProps = state => ({
+  title: state.getIn(['listEditor', 'title']),
+  accountIds: state.getIn(['listEditor', 'accounts', 'items']),
+  searchAccountIds: state.getIn(['listEditor', 'suggestions', 'items']),
+});
+
+const mapDispatchToProps = dispatch => ({
+  onInitialize: listId => dispatch(setupListEditor(listId)),
+  onClear: () => dispatch(clearListSuggestions()),
+  onReset: () => dispatch(resetListEditor()),
+});
+
+@connect(mapStateToProps, mapDispatchToProps)
+@injectIntl
+export default class ListEditor extends ImmutablePureComponent {
+
+  static propTypes = {
+    listId: PropTypes.string.isRequired,
+    onClose: PropTypes.func.isRequired,
+    intl: PropTypes.object.isRequired,
+    onInitialize: PropTypes.func.isRequired,
+    onClear: PropTypes.func.isRequired,
+    onReset: PropTypes.func.isRequired,
+    title: PropTypes.string.isRequired,
+    accountIds: ImmutablePropTypes.list.isRequired,
+    searchAccountIds: ImmutablePropTypes.list.isRequired,
+  };
+
+  componentDidMount () {
+    const { onInitialize, listId } = this.props;
+    onInitialize(listId);
+  }
+
+  componentWillUnmount () {
+    const { onReset } = this.props;
+    onReset();
+  }
+
+  render () {
+    const { title, accountIds, searchAccountIds, onClear } = this.props;
+    const showSearch = searchAccountIds.size > 0;
+
+    return (
+      <div className='modal-root__modal list-editor'>
+        <h4>{title}</h4>
+
+        <Search />
+
+        <div className='drawer__pager'>
+          <div className='drawer__inner list-editor__accounts'>
+            {accountIds.map(accountId => <Account key={accountId} accountId={accountId} added />)}
+          </div>
+
+          {showSearch && <div role='button' tabIndex='-1' className='drawer__backdrop' onClick={onClear} />}
+
+          <Motion defaultStyle={{ x: -100 }} style={{ x: spring(showSearch ? 0 : -100, { stiffness: 210, damping: 20 }) }}>
+            {({ x }) =>
+              <div className='drawer__inner backdrop' style={{ transform: x === 0 ? null : `translateX(${x}%)`, visibility: x === -100 ? 'hidden' : 'visible' }}>
+                {searchAccountIds.map(accountId => <Account key={accountId} accountId={accountId} />)}
+              </div>
+            }
+          </Motion>
+        </div>
+      </div>
+    );
+  }
+
+}
diff --git a/app/javascript/mastodon/features/list_timeline/index.js b/app/javascript/mastodon/features/list_timeline/index.js
index 71f6e36a8..1dcd4de14 100644
--- a/app/javascript/mastodon/features/list_timeline/index.js
+++ b/app/javascript/mastodon/features/list_timeline/index.js
@@ -6,10 +6,18 @@ import StatusListContainer from '../ui/containers/status_list_container';
 import Column from '../../components/column';
 import ColumnHeader from '../../components/column_header';
 import { addColumn, removeColumn, moveColumn } from '../../actions/columns';
-import { FormattedMessage } from 'react-intl';
+import { FormattedMessage, defineMessages, injectIntl } from 'react-intl';
 import { connectListStream } from '../../actions/streaming';
 import { refreshListTimeline, expandListTimeline } from '../../actions/timelines';
-import { fetchList } from '../../actions/lists';
+import { fetchList, deleteList } from '../../actions/lists';
+import { openModal } from '../../actions/modal';
+import MissingIndicator from '../../components/missing_indicator';
+import LoadingIndicator from '../../components/loading_indicator';
+
+const messages = defineMessages({
+  deleteMessage: { id: 'confirmations.delete_list.message', defaultMessage: 'Are you sure you want to permanently delete this list?' },
+  deleteConfirm: { id: 'confirmations.delete_list.confirm', defaultMessage: 'Delete' },
+});
 
 const mapStateToProps = (state, props) => ({
   list: state.getIn(['lists', props.params.id]),
@@ -17,15 +25,21 @@ const mapStateToProps = (state, props) => ({
 });
 
 @connect(mapStateToProps)
+@injectIntl
 export default class ListTimeline extends React.PureComponent {
 
+  static contextTypes = {
+    router: PropTypes.object,
+  };
+
   static propTypes = {
     params: PropTypes.object.isRequired,
     dispatch: PropTypes.func.isRequired,
     columnId: PropTypes.string,
     hasUnread: PropTypes.bool,
     multiColumn: PropTypes.bool,
-    list: ImmutablePropTypes.map,
+    list: PropTypes.oneOfType([ImmutablePropTypes.map, PropTypes.bool]),
+    intl: PropTypes.object.isRequired,
   };
 
   handlePin = () => {
@@ -35,6 +49,7 @@ export default class ListTimeline extends React.PureComponent {
       dispatch(removeColumn(columnId));
     } else {
       dispatch(addColumn('LIST', { id: this.props.params.id }));
+      this.context.router.history.push('/');
     }
   }
 
@@ -73,12 +88,49 @@ export default class ListTimeline extends React.PureComponent {
     this.props.dispatch(expandListTimeline(id));
   }
 
+  handleEditClick = () => {
+    this.props.dispatch(openModal('LIST_EDITOR', { listId: this.props.params.id }));
+  }
+
+  handleDeleteClick = () => {
+    const { dispatch, columnId, intl } = this.props;
+    const { id } = this.props.params;
+
+    dispatch(openModal('CONFIRM', {
+      message: intl.formatMessage(messages.deleteMessage),
+      confirm: intl.formatMessage(messages.deleteConfirm),
+      onConfirm: () => {
+        dispatch(deleteList(id));
+
+        if (!!columnId) {
+          dispatch(removeColumn(columnId));
+        } else {
+          this.context.router.history.push('/lists');
+        }
+      },
+    }));
+  }
+
   render () {
     const { hasUnread, columnId, multiColumn, list } = this.props;
     const { id } = this.props.params;
     const pinned = !!columnId;
     const title  = list ? list.get('title') : id;
 
+    if (typeof list === 'undefined') {
+      return (
+        <Column>
+          <LoadingIndicator />
+        </Column>
+      );
+    } else if (list === false) {
+      return (
+        <Column>
+          <MissingIndicator />
+        </Column>
+      );
+    }
+
     return (
       <Column ref={this.setRef}>
         <ColumnHeader
@@ -90,7 +142,19 @@ export default class ListTimeline extends React.PureComponent {
           onClick={this.handleHeaderClick}
           pinned={pinned}
           multiColumn={multiColumn}
-        />
+        >
+          <div className='column-header__links'>
+            <button className='text-btn column-header__setting-btn' tabIndex='0' onClick={this.handleEditClick}>
+              <i className='fa fa-pencil' /> <FormattedMessage id='lists.edit' defaultMessage='Edit list' />
+            </button>
+
+            <button className='text-btn column-header__setting-btn' tabIndex='0' onClick={this.handleDeleteClick}>
+              <i className='fa fa-trash' /> <FormattedMessage id='lists.delete' defaultMessage='Delete list' />
+            </button>
+          </div>
+
+          <hr />
+        </ColumnHeader>
 
         <StatusListContainer
           trackScroll={!pinned}
diff --git a/app/javascript/mastodon/features/lists/components/new_list_form.js b/app/javascript/mastodon/features/lists/components/new_list_form.js
new file mode 100644
index 000000000..0054e5264
--- /dev/null
+++ b/app/javascript/mastodon/features/lists/components/new_list_form.js
@@ -0,0 +1,80 @@
+import React from 'react';
+import { connect } from 'react-redux';
+import PropTypes from 'prop-types';
+import { changeListEditorTitle, submitListEditor } from '../../../actions/lists';
+import IconButton from '../../../components/icon_button';
+import { defineMessages, injectIntl } from 'react-intl';
+
+const messages = defineMessages({
+  label: { id: 'lists.new.title_placeholder', defaultMessage: 'New list title' },
+  title: { id: 'lists.new.create', defaultMessage: 'Add list' },
+});
+
+const mapStateToProps = state => ({
+  value: state.getIn(['listEditor', 'title']),
+  disabled: state.getIn(['listEditor', 'isSubmitting']),
+});
+
+const mapDispatchToProps = dispatch => ({
+  onChange: value => dispatch(changeListEditorTitle(value)),
+  onSubmit: () => dispatch(submitListEditor(true)),
+});
+
+@connect(mapStateToProps, mapDispatchToProps)
+@injectIntl
+export default class NewListForm extends React.PureComponent {
+
+  static propTypes = {
+    value: PropTypes.string.isRequired,
+    disabled: PropTypes.bool,
+    intl: PropTypes.object.isRequired,
+    onChange: PropTypes.func.isRequired,
+    onSubmit: PropTypes.func.isRequired,
+  };
+
+  handleChange = e => {
+    this.props.onChange(e.target.value);
+  }
+
+  handleKeyUp = e => {
+    if (e.keyCode === 13) {
+      this.props.onSubmit();
+    }
+  }
+
+  handleClick = () => {
+    this.props.onSubmit();
+  }
+
+  render () {
+    const { value, disabled, intl } = this.props;
+
+    const label = intl.formatMessage(messages.label);
+    const title = intl.formatMessage(messages.title);
+
+    return (
+      <div className='column-inline-form'>
+        <label>
+          <span style={{ display: 'none' }}>{label}</span>
+
+          <input
+            className='setting-text'
+            value={value}
+            disabled={disabled}
+            onChange={this.handleChange}
+            onKeyUp={this.handleKeyUp}
+            placeholder={label}
+          />
+        </label>
+
+        <IconButton
+          disabled={disabled}
+          icon='plus'
+          title={title}
+          onClick={this.handleClick}
+        />
+      </div>
+    );
+  }
+
+}
diff --git a/app/javascript/mastodon/features/lists/index.js b/app/javascript/mastodon/features/lists/index.js
new file mode 100644
index 000000000..28026c434
--- /dev/null
+++ b/app/javascript/mastodon/features/lists/index.js
@@ -0,0 +1,76 @@
+import React from 'react';
+import { connect } from 'react-redux';
+import PropTypes from 'prop-types';
+import ImmutablePropTypes from 'react-immutable-proptypes';
+import LoadingIndicator from '../../components/loading_indicator';
+import Column from '../ui/components/column';
+import ColumnBackButtonSlim from '../../components/column_back_button_slim';
+import { fetchLists } from '../../actions/lists';
+import { defineMessages, injectIntl } from 'react-intl';
+import ImmutablePureComponent from 'react-immutable-pure-component';
+import ColumnLink from '../ui/components/column_link';
+import ColumnSubheading from '../ui/components/column_subheading';
+import NewListForm from './components/new_list_form';
+import { createSelector } from 'reselect';
+
+const messages = defineMessages({
+  heading: { id: 'column.lists', defaultMessage: 'Lists' },
+  subheading: { id: 'lists.subheading', defaultMessage: 'Your lists' },
+});
+
+const getOrderedLists = createSelector([state => state.get('lists')], lists => {
+  if (!lists) {
+    return lists;
+  }
+
+  return lists.toList().filter(item => !!item).sort((a, b) => a.get('title').localeCompare(b.get('title')));
+});
+
+const mapStateToProps = state => ({
+  lists: getOrderedLists(state),
+});
+
+@connect(mapStateToProps)
+@injectIntl
+export default class Lists extends ImmutablePureComponent {
+
+  static propTypes = {
+    params: PropTypes.object.isRequired,
+    dispatch: PropTypes.func.isRequired,
+    lists: ImmutablePropTypes.list,
+    intl: PropTypes.object.isRequired,
+  };
+
+  componentWillMount () {
+    this.props.dispatch(fetchLists());
+  }
+
+  render () {
+    const { intl, lists } = this.props;
+
+    if (!lists) {
+      return (
+        <Column>
+          <LoadingIndicator />
+        </Column>
+      );
+    }
+
+    return (
+      <Column icon='bars' heading={intl.formatMessage(messages.heading)}>
+        <ColumnBackButtonSlim />
+
+        <NewListForm />
+
+        <div className='scrollable'>
+          <ColumnSubheading text={intl.formatMessage(messages.subheading)} />
+
+          {lists.map(list =>
+            <ColumnLink key={list.get('id')} to={`/timelines/list/${list.get('id')}`} icon='bars' text={list.get('title')} />
+          )}
+        </div>
+      </Column>
+    );
+  }
+
+}
diff --git a/app/javascript/mastodon/features/ui/components/modal_root.js b/app/javascript/mastodon/features/ui/components/modal_root.js
index 79d86370e..ebbff6b5a 100644
--- a/app/javascript/mastodon/features/ui/components/modal_root.js
+++ b/app/javascript/mastodon/features/ui/components/modal_root.js
@@ -13,6 +13,7 @@ import {
   MuteModal,
   ReportModal,
   EmbedModal,
+  ListEditor,
 } from '../../../features/ui/util/async-components';
 
 const MODAL_COMPONENTS = {
@@ -25,6 +26,7 @@ const MODAL_COMPONENTS = {
   'REPORT': ReportModal,
   'ACTIONS': () => Promise.resolve({ default: ActionsModal }),
   'EMBED': EmbedModal,
+  'LIST_EDITOR': ListEditor,
 };
 
 export default class ModalRoot extends React.PureComponent {
diff --git a/app/javascript/mastodon/features/ui/index.js b/app/javascript/mastodon/features/ui/index.js
index 361326961..5b0d7246a 100644
--- a/app/javascript/mastodon/features/ui/index.js
+++ b/app/javascript/mastodon/features/ui/index.js
@@ -38,6 +38,7 @@ import {
   Blocks,
   Mutes,
   PinnedStatuses,
+  Lists,
 } from './util/async-components';
 import { HotKeys } from 'react-hotkeys';
 import { me } from '../../initial_state';
@@ -404,6 +405,7 @@ export default class UI extends React.Component {
               <WrappedRoute path='/follow_requests' component={FollowRequests} content={children} />
               <WrappedRoute path='/blocks' component={Blocks} content={children} />
               <WrappedRoute path='/mutes' component={Mutes} content={children} />
+              <WrappedRoute path='/lists' component={Lists} content={children} />
 
               <WrappedRoute component={GenericNotFound} content={children} />
             </WrappedSwitch>
diff --git a/app/javascript/mastodon/features/ui/util/async-components.js b/app/javascript/mastodon/features/ui/util/async-components.js
index b741f668e..d6586680b 100644
--- a/app/javascript/mastodon/features/ui/util/async-components.js
+++ b/app/javascript/mastodon/features/ui/util/async-components.js
@@ -30,6 +30,10 @@ export function ListTimeline () {
   return import(/* webpackChunkName: "features/list_timeline" */'../../list_timeline');
 }
 
+export function Lists () {
+  return import(/* webpackChunkName: "features/lists" */'../../lists');
+}
+
 export function Status () {
   return import(/* webpackChunkName: "features/status" */'../../status');
 }
@@ -113,3 +117,7 @@ export function Video () {
 export function EmbedModal () {
   return import(/* webpackChunkName: "modals/embed_modal" */'../components/embed_modal');
 }
+
+export function ListEditor () {
+  return import(/* webpackChunkName: "features/list_editor" */'../../list_editor');
+}
diff --git a/app/javascript/mastodon/locales/zh-CN.json b/app/javascript/mastodon/locales/zh-CN.json
index b10ca2ae4..e2d2489dc 100644
--- a/app/javascript/mastodon/locales/zh-CN.json
+++ b/app/javascript/mastodon/locales/zh-CN.json
@@ -36,6 +36,7 @@
   "column.favourites": "收藏过的嘟文",
   "column.follow_requests": "关注请求",
   "column.home": "主页",
+  "column.lists": "列表",
   "column.mutes": "被隐藏的用户",
   "column.notifications": "通知",
   "column.pins": "置顶嘟文",
@@ -62,6 +63,8 @@
   "confirmations.block.message": "想好了，真的要屏蔽 {name}？",
   "confirmations.delete.confirm": "删除",
   "confirmations.delete.message": "想好了，真的要删除这条嘟文？",
+  "confirmations.delete_list.confirm": "删除",
+  "confirmations.delete_list.message": "你确定要永久删除这个列表吗？",
   "confirmations.domain_block.confirm": "隐藏整个网站的内容",
   "confirmations.domain_block.message": "你真的真的确定要隐藏所有来自 {domain} 的内容吗？多数情况下，屏蔽或隐藏几个特定的用户就应该能满足你的需要了。",
   "confirmations.mute.confirm": "隐藏",
@@ -124,6 +127,14 @@
   "lightbox.close": "关闭",
   "lightbox.next": "下一步",
   "lightbox.previous": "上一步",
+  "lists.account.add": "添加到列表",
+  "lists.account.remove": "从列表中删除",
+  "lists.delete": "删除列表",
+  "lists.edit": "编辑列表",
+  "lists.new.create": "新建列表",
+  "lists.new.title_placeholder": "新列表的标题",
+  "lists.search": "搜索你关注的人",
+  "lists.subheading": "你的列表",
   "loading_indicator.label": "加载中……",
   "media_gallery.toggle_visible": "切换显示/隐藏",
   "missing_indicator.label": "找不到内容",
@@ -134,6 +145,7 @@
   "navigation_bar.favourites": "收藏的内容",
   "navigation_bar.follow_requests": "关注请求",
   "navigation_bar.info": "关于本站",
+  "navigation_bar.lists": "列表",
   "navigation_bar.keyboard_shortcuts": "快捷键列表",
   "navigation_bar.logout": "注销",
   "navigation_bar.mutes": "被隐藏的用户",
diff --git a/app/javascript/mastodon/reducers/accounts.js b/app/javascript/mastodon/reducers/accounts.js
index 5891d0fdd..f77061dfa 100644
--- a/app/javascript/mastodon/reducers/accounts.js
+++ b/app/javascript/mastodon/reducers/accounts.js
@@ -43,6 +43,10 @@ import {
   FAVOURITED_STATUSES_FETCH_SUCCESS,
   FAVOURITED_STATUSES_EXPAND_SUCCESS,
 } from '../actions/favourites';
+import {
+  LIST_ACCOUNTS_FETCH_SUCCESS,
+  LIST_EDITOR_SUGGESTIONS_READY,
+} from '../actions/lists';
 import { STORE_HYDRATE } from '../actions/store';
 import emojify from '../features/emoji/emoji';
 import { Map as ImmutableMap, fromJS } from 'immutable';
@@ -115,6 +119,8 @@ export default function accounts(state = initialState, action) {
   case BLOCKS_EXPAND_SUCCESS:
   case MUTES_FETCH_SUCCESS:
   case MUTES_EXPAND_SUCCESS:
+  case LIST_ACCOUNTS_FETCH_SUCCESS:
+  case LIST_EDITOR_SUGGESTIONS_READY:
     return action.accounts ? normalizeAccounts(state, action.accounts) : state;
   case NOTIFICATIONS_REFRESH_SUCCESS:
   case NOTIFICATIONS_EXPAND_SUCCESS:
diff --git a/app/javascript/mastodon/reducers/accounts_counters.js b/app/javascript/mastodon/reducers/accounts_counters.js
index 2a78a9f34..a93fa4245 100644
--- a/app/javascript/mastodon/reducers/accounts_counters.js
+++ b/app/javascript/mastodon/reducers/accounts_counters.js
@@ -45,6 +45,10 @@ import {
   FAVOURITED_STATUSES_FETCH_SUCCESS,
   FAVOURITED_STATUSES_EXPAND_SUCCESS,
 } from '../actions/favourites';
+import {
+  LIST_ACCOUNTS_FETCH_SUCCESS,
+  LIST_EDITOR_SUGGESTIONS_READY,
+} from '../actions/lists';
 import { STORE_HYDRATE } from '../actions/store';
 import { Map as ImmutableMap, fromJS } from 'immutable';
 
@@ -106,6 +110,8 @@ export default function accountsCounters(state = initialState, action) {
   case BLOCKS_EXPAND_SUCCESS:
   case MUTES_FETCH_SUCCESS:
   case MUTES_EXPAND_SUCCESS:
+  case LIST_ACCOUNTS_FETCH_SUCCESS:
+  case LIST_EDITOR_SUGGESTIONS_READY:
     return action.accounts ? normalizeAccounts(state, action.accounts) : state;
   case NOTIFICATIONS_REFRESH_SUCCESS:
   case NOTIFICATIONS_EXPAND_SUCCESS:
diff --git a/app/javascript/mastodon/reducers/index.js b/app/javascript/mastodon/reducers/index.js
index 425a2acdd..a028e989c 100644
--- a/app/javascript/mastodon/reducers/index.js
+++ b/app/javascript/mastodon/reducers/index.js
@@ -23,6 +23,7 @@ import notifications from './notifications';
 import height_cache from './height_cache';
 import custom_emojis from './custom_emojis';
 import lists from './lists';
+import listEditor from './list_editor';
 
 const reducers = {
   timelines,
@@ -49,6 +50,7 @@ const reducers = {
   height_cache,
   custom_emojis,
   lists,
+  listEditor,
 };
 
 export default combineReducers(reducers);
diff --git a/app/javascript/mastodon/reducers/list_editor.js b/app/javascript/mastodon/reducers/list_editor.js
new file mode 100644
index 000000000..02a0dabb1
--- /dev/null
+++ b/app/javascript/mastodon/reducers/list_editor.js
@@ -0,0 +1,89 @@
+import { Map as ImmutableMap, List as ImmutableList } from 'immutable';
+import {
+  LIST_CREATE_REQUEST,
+  LIST_CREATE_FAIL,
+  LIST_CREATE_SUCCESS,
+  LIST_UPDATE_REQUEST,
+  LIST_UPDATE_FAIL,
+  LIST_UPDATE_SUCCESS,
+  LIST_EDITOR_RESET,
+  LIST_EDITOR_SETUP,
+  LIST_EDITOR_TITLE_CHANGE,
+  LIST_ACCOUNTS_FETCH_REQUEST,
+  LIST_ACCOUNTS_FETCH_SUCCESS,
+  LIST_ACCOUNTS_FETCH_FAIL,
+  LIST_EDITOR_SUGGESTIONS_READY,
+  LIST_EDITOR_SUGGESTIONS_CLEAR,
+  LIST_EDITOR_SUGGESTIONS_CHANGE,
+  LIST_EDITOR_ADD_SUCCESS,
+  LIST_EDITOR_REMOVE_SUCCESS,
+} from '../actions/lists';
+
+const initialState = ImmutableMap({
+  listId: null,
+  isSubmitting: false,
+  title: '',
+
+  accounts: ImmutableMap({
+    items: ImmutableList(),
+    loaded: false,
+    isLoading: false,
+  }),
+
+  suggestions: ImmutableMap({
+    value: '',
+    items: ImmutableList(),
+  }),
+});
+
+export default function listEditorReducer(state = initialState, action) {
+  switch(action.type) {
+  case LIST_EDITOR_RESET:
+    return initialState;
+  case LIST_EDITOR_SETUP:
+    return state.withMutations(map => {
+      map.set('listId', action.list.get('id'));
+      map.set('title', action.list.get('title'));
+      map.set('isSubmitting', false);
+    });
+  case LIST_EDITOR_TITLE_CHANGE:
+    return state.set('title', action.value);
+  case LIST_CREATE_REQUEST:
+  case LIST_UPDATE_REQUEST:
+    return state.set('isSubmitting', true);
+  case LIST_CREATE_FAIL:
+  case LIST_UPDATE_FAIL:
+    return state.set('isSubmitting', false);
+  case LIST_CREATE_SUCCESS:
+  case LIST_UPDATE_SUCCESS:
+    return state.withMutations(map => {
+      map.set('isSubmitting', false);
+      map.set('listId', action.list.id);
+    });
+  case LIST_ACCOUNTS_FETCH_REQUEST:
+    return state.setIn(['accounts', 'isLoading'], true);
+  case LIST_ACCOUNTS_FETCH_FAIL:
+    return state.setIn(['accounts', 'isLoading'], false);
+  case LIST_ACCOUNTS_FETCH_SUCCESS:
+    return state.update('accounts', accounts => accounts.withMutations(map => {
+      map.set('isLoading', false);
+      map.set('loaded', true);
+      map.set('items', ImmutableList(action.accounts.map(item => item.id)));
+    }));
+  case LIST_EDITOR_SUGGESTIONS_CHANGE:
+    return state.setIn(['suggestions', 'value'], action.value);
+  case LIST_EDITOR_SUGGESTIONS_READY:
+    return state.setIn(['suggestions', 'items'], ImmutableList(action.accounts.map(item => item.id)));
+  case LIST_EDITOR_SUGGESTIONS_CLEAR:
+    return state.update('suggestions', suggestions => suggestions.withMutations(map => {
+      map.set('items', ImmutableList());
+      map.set('value', '');
+    }));
+  case LIST_EDITOR_ADD_SUCCESS:
+    return state.updateIn(['accounts', 'items'], list => list.unshift(action.accountId));
+  case LIST_EDITOR_REMOVE_SUCCESS:
+    return state.updateIn(['accounts', 'items'], list => list.filterNot(item => item === action.accountId));
+  default:
+    return state;
+  }
+};
diff --git a/app/javascript/mastodon/reducers/lists.js b/app/javascript/mastodon/reducers/lists.js
index 3e3908869..f30ffbcbd 100644
--- a/app/javascript/mastodon/reducers/lists.js
+++ b/app/javascript/mastodon/reducers/lists.js
@@ -1,14 +1,36 @@
-import { LIST_FETCH_SUCCESS } from '../actions/lists';
+import {
+  LIST_FETCH_SUCCESS,
+  LIST_FETCH_FAIL,
+  LISTS_FETCH_SUCCESS,
+  LIST_CREATE_SUCCESS,
+  LIST_UPDATE_SUCCESS,
+  LIST_DELETE_SUCCESS,
+} from '../actions/lists';
 import { Map as ImmutableMap, fromJS } from 'immutable';
 
 const initialState = ImmutableMap();
 
 const normalizeList = (state, list) => state.set(list.id, fromJS(list));
 
+const normalizeLists = (state, lists) => {
+  lists.forEach(list => {
+    state = normalizeList(state, list);
+  });
+
+  return state;
+};
+
 export default function lists(state = initialState, action) {
   switch(action.type) {
   case LIST_FETCH_SUCCESS:
+  case LIST_CREATE_SUCCESS:
+  case LIST_UPDATE_SUCCESS:
     return normalizeList(state, action.list);
+  case LISTS_FETCH_SUCCESS:
+    return normalizeLists(state, action.lists);
+  case LIST_DELETE_SUCCESS:
+  case LIST_FETCH_FAIL:
+    return state.set(action.id, false);
   default:
     return state;
   }
diff --git a/app/javascript/mastodon/reducers/settings.js b/app/javascript/mastodon/reducers/settings.js
index a9f3f9529..5817cf49b 100644
--- a/app/javascript/mastodon/reducers/settings.js
+++ b/app/javascript/mastodon/reducers/settings.js
@@ -2,6 +2,7 @@ import { SETTING_CHANGE, SETTING_SAVE } from '../actions/settings';
 import { COLUMN_ADD, COLUMN_REMOVE, COLUMN_MOVE } from '../actions/columns';
 import { STORE_HYDRATE } from '../actions/store';
 import { EMOJI_USE } from '../actions/emojis';
+import { LIST_DELETE_SUCCESS, LIST_FETCH_FAIL } from '../actions/lists';
 import { Map as ImmutableMap, fromJS } from 'immutable';
 import uuid from '../uuid';
 
@@ -84,6 +85,8 @@ const moveColumn = (state, uuid, direction) => {
 
 const updateFrequentEmojis = (state, emoji) => state.update('frequentlyUsedEmojis', ImmutableMap(), map => map.update(emoji.id, 0, count => count + 1)).set('saved', false);
 
+const filterDeadListColumns = (state, listId) => state.update('columns', columns => columns.filterNot(column => column.get('id') === 'LIST' && column.get('params').get('id') === listId));
+
 export default function settings(state = initialState, action) {
   switch(action.type) {
   case STORE_HYDRATE:
@@ -106,6 +109,10 @@ export default function settings(state = initialState, action) {
     return updateFrequentEmojis(state, action.emoji);
   case SETTING_SAVE:
     return state.set('saved', true);
+  case LIST_FETCH_FAIL:
+    return action.error.response.status === 404 ? filterDeadListColumns(state, action.id) : state;
+  case LIST_DELETE_SUCCESS:
+    return filterDeadListColumns(state, action.id);
   default:
     return state;
   }
diff --git a/app/javascript/styles/mastodon/components.scss b/app/javascript/styles/mastodon/components.scss
index 26ff8bf00..5eeefae4d 100644
--- a/app/javascript/styles/mastodon/components.scss
+++ b/app/javascript/styles/mastodon/components.scss
@@ -2359,6 +2359,10 @@ button.icon-button.active i.fa-retweet {
   margin-left: 0;
 }
 
+.column-header__links .text-btn {
+  margin-right: 10px;
+}
+
 .column-header__button {
   background: lighten($ui-base-color, 4%);
   border: 0;
@@ -2398,6 +2402,14 @@ button.icon-button.active i.fa-retweet {
   &.animating {
     overflow-y: hidden;
   }
+
+  hr {
+    height: 0;
+    background: transparent;
+    border: 0;
+    border-top: 1px solid lighten($ui-base-color, 12%);
+    margin: 10px 0;
+  }
 }
 
 .column-header__collapsible-inner {
@@ -4440,3 +4452,86 @@ noscript {
     margin-bottom: 0;
   }
 }
+
+.column-inline-form {
+  padding: 7px 15px;
+  padding-right: 5px;
+  display: flex;
+  justify-content: flex-start;
+  align-items: center;
+  background: lighten($ui-base-color, 4%);
+
+  label {
+    flex: 1 1 auto;
+
+    input {
+      width: 100%;
+      margin-bottom: 6px;
+    }
+  }
+
+  .icon-button {
+    flex: 0 0 auto;
+    margin-left: 5px;
+  }
+}
+
+.drawer__backdrop {
+  cursor: pointer;
+  position: absolute;
+  top: 0;
+  left: 0;
+  width: 100%;
+  height: 100%;
+  background: rgba($base-overlay-background, 0.5);
+}
+
+.list-editor {
+  background: $ui-base-color;
+  flex-direction: column;
+  border-radius: 8px;
+  box-shadow: 2px 4px 15px rgba($base-shadow-color, 0.4);
+  width: 40vh;
+  overflow: hidden;
+
+  h4 {
+    padding: 15px 0;
+    background: lighten($ui-base-color, 13%);
+    font-weight: 500;
+    font-size: 16px;
+    text-align: center;
+    border-radius: 8px 8px 0 0;
+  }
+
+  .drawer__pager {
+    height: 50vh;
+  }
+
+  .drawer__inner {
+    border-radius: 0 0 8px 8px;
+
+    &.backdrop {
+      width: calc(100% - 60px);
+      box-shadow: 2px 4px 15px rgba($base-shadow-color, 0.4);
+      border-radius: 0 0 0 8px;
+    }
+  }
+
+  &__accounts {
+    overflow-y: auto;
+  }
+
+  .account__display-name {
+    &:hover strong {
+      text-decoration: none;
+    }
+  }
+
+  .account__avatar {
+    cursor: default;
+  }
+
+  .search {
+    margin-bottom: 0;
+  }
+}
diff --git a/app/models/account.rb b/app/models/account.rb
index b6d46b2cc..77b78ffef 100644
--- a/app/models/account.rb
+++ b/app/models/account.rb
@@ -277,23 +277,46 @@ class Account < ApplicationRecord
       find_by_sql([sql, limit])
     end
 
-    def advanced_search_for(terms, account, limit = 10)
+    def advanced_search_for(terms, account, limit = 10, following = false)
       textsearch, query = generate_query_for_search(terms)
 
-      sql = <<-SQL.squish
-        SELECT
-          accounts.*,
-          (count(f.id) + 1) * ts_rank_cd(#{textsearch}, #{query}, 32) AS rank
-        FROM accounts
-        LEFT OUTER JOIN follows AS f ON (accounts.id = f.account_id AND f.target_account_id = ?) OR (accounts.id = f.target_account_id AND f.account_id = ?)
-        WHERE #{query} @@ #{textsearch}
-          AND accounts.suspended = false
-        GROUP BY accounts.id
-        ORDER BY rank DESC
-        LIMIT ?
-      SQL
-
-      find_by_sql([sql, account.id, account.id, limit])
+      if following
+        sql = <<-SQL.squish
+          WITH first_degree AS (
+            SELECT target_account_id
+            FROM follows
+            WHERE account_id = ?
+          )
+          SELECT
+            accounts.*,
+            (count(f.id) + 1) * ts_rank_cd(#{textsearch}, #{query}, 32) AS rank
+          FROM accounts
+          LEFT OUTER JOIN follows AS f ON (accounts.id = f.account_id AND f.target_account_id = ?) OR (accounts.id = f.target_account_id AND f.account_id = ?)
+          WHERE accounts.id IN (SELECT * FROM first_degree)
+            AND #{query} @@ #{textsearch}
+            AND accounts.suspended = false
+          GROUP BY accounts.id
+          ORDER BY rank DESC
+          LIMIT ?
+        SQL
+
+        find_by_sql([sql, account.id, account.id, account.id, limit])
+      else
+        sql = <<-SQL.squish
+          SELECT
+            accounts.*,
+            (count(f.id) + 1) * ts_rank_cd(#{textsearch}, #{query}, 32) AS rank
+          FROM accounts
+          LEFT OUTER JOIN follows AS f ON (accounts.id = f.account_id AND f.target_account_id = ?) OR (accounts.id = f.target_account_id AND f.account_id = ?)
+          WHERE #{query} @@ #{textsearch}
+            AND accounts.suspended = false
+          GROUP BY accounts.id
+          ORDER BY rank DESC
+          LIMIT ?
+        SQL
+
+        find_by_sql([sql, account.id, account.id, limit])
+      end
     end
 
     private
diff --git a/app/models/list_account.rb b/app/models/list_account.rb
index c08239aa0..253932590 100644
--- a/app/models/list_account.rb
+++ b/app/models/list_account.rb
@@ -14,6 +14,8 @@ class ListAccount < ApplicationRecord
   belongs_to :account, required: true
   belongs_to :follow, required: true
 
+  validates :account_id, uniqueness: { scope: :list_id }
+
   before_validation :set_follow
 
   private
diff --git a/app/services/account_search_service.rb b/app/services/account_search_service.rb
index b0c663d02..ce25c3620 100644
--- a/app/services/account_search_service.rb
+++ b/app/services/account_search_service.rb
@@ -1,12 +1,12 @@
 # frozen_string_literal: true
 
 class AccountSearchService < BaseService
-  attr_reader :query, :limit, :resolve, :account
+  attr_reader :query, :limit, :options, :account
 
-  def call(query, limit, resolve = false, account = nil)
-    @query = query
-    @limit = limit
-    @resolve = resolve
+  def call(query, limit, account = nil, options = {})
+    @query   = query
+    @limit   = limit
+    @options = options
     @account = account
 
     search_service_results
@@ -25,7 +25,7 @@ class AccountSearchService < BaseService
   end
 
   def resolving_non_matching_remote_account?
-    resolve && !exact_match && !domain_is_local?
+    options[:resolve] && !exact_match && !domain_is_local?
   end
 
   def search_results_and_exact_match
@@ -79,7 +79,7 @@ class AccountSearchService < BaseService
   end
 
   def advanced_search_results
-    Account.advanced_search_for(terms_for_query, account, limit)
+    Account.advanced_search_for(terms_for_query, account, limit, options[:following])
   end
 
   def simple_search_results
diff --git a/app/services/search_service.rb b/app/services/search_service.rb
index 1ed3f0032..85ad94463 100644
--- a/app/services/search_service.rb
+++ b/app/services/search_service.rb
@@ -10,7 +10,7 @@ class SearchService < BaseService
       if url_query?
         results.merge!(remote_resource_results) unless remote_resource.nil?
       elsif query.present?
-        results[:accounts] = AccountSearchService.new.call(query, limit, resolve, account)
+        results[:accounts] = AccountSearchService.new.call(query, limit, account, resolve: resolve)
         results[:hashtags] = Tag.search_for(query.gsub(/\A#/, ''), limit) unless query.start_with?('@')
       end
     end
diff --git a/spec/services/account_search_service_spec.rb b/spec/services/account_search_service_spec.rb
index 25bb56bca..4685e619f 100644
--- a/spec/services/account_search_service_spec.rb
+++ b/spec/services/account_search_service_spec.rb
@@ -72,7 +72,7 @@ describe AccountSearchService do
         describe 'and there is no account provided' do
           it 'uses search_for to find matches' do
             allow(Account).to receive(:search_for)
-            subject.call('two@example.com', 10, false, nil)
+            subject.call('two@example.com', 10, nil, resolve: false)
 
             expect(Account).to have_received(:search_for).with('two example.com', 10)
           end
@@ -82,9 +82,9 @@ describe AccountSearchService do
           it 'uses advanced_search_for to find matches' do
             account = Fabricate(:account)
             allow(Account).to receive(:advanced_search_for)
-            subject.call('two@example.com', 10, false, account)
+            subject.call('two@example.com', 10, account, resolve: false)
 
-            expect(Account).to have_received(:advanced_search_for).with('two example.com', account, 10)
+            expect(Account).to have_received(:advanced_search_for).with('two example.com', account, 10, nil)
           end
         end
       end
@@ -125,7 +125,7 @@ describe AccountSearchService do
         service = double(call: nil)
         allow(ResolveRemoteAccountService).to receive(:new).and_return(service)
 
-        results = subject.call('newuser@remote.com', 10, true)
+        results = subject.call('newuser@remote.com', 10, nil, resolve: true)
         expect(service).to have_received(:call).with('newuser@remote.com')
       end
 
@@ -133,7 +133,7 @@ describe AccountSearchService do
         service = double(call: nil)
         allow(ResolveRemoteAccountService).to receive(:new).and_return(service)
 
-        results = subject.call('newuser@remote.com', 10, false)
+        results = subject.call('newuser@remote.com', 10, nil, resolve: false)
         expect(service).not_to have_received(:call)
       end
     end
diff --git a/spec/services/search_service_spec.rb b/spec/services/search_service_spec.rb
index 00475c699..3ffcc389b 100644
--- a/spec/services/search_service_spec.rb
+++ b/spec/services/search_service_spec.rb
@@ -68,7 +68,7 @@ describe SearchService do
           allow(AccountSearchService).to receive(:new).and_return(service)
 
           results = subject.call(query, 10)
-          expect(service).to have_received(:call).with(query, 10, false, nil)
+          expect(service).to have_received(:call).with(query, 10, nil, resolve: false)
           expect(results).to eq empty_results.merge(accounts: [account])
         end
       end