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+import Immutable from 'immutable';
+import React from 'react';
+import { connect } from 'react-redux';
+import PropTypes from 'prop-types';
+import classNames from 'classnames';
+import ImmutablePropTypes from 'react-immutable-proptypes';
+import { createSelector } from 'reselect';
+import { fetchStatus } from 'flavours/glitch/actions/statuses';
+import MissingIndicator from 'flavours/glitch/components/missing_indicator';
+import DetailedStatus from './components/detailed_status';
+import ActionBar from './components/action_bar';
+import Column from 'flavours/glitch/features/ui/components/column';
+import {
+  favourite,
+  unfavourite,
+  bookmark,
+  unbookmark,
+  reblog,
+  unreblog,
+  pin,
+  unpin,
+} from 'flavours/glitch/actions/interactions';
+import {
+  replyCompose,
+  mentionCompose,
+  directCompose,
+} from 'flavours/glitch/actions/compose';
+import { changeLocalSetting } from 'flavours/glitch/actions/local_settings';
+import { muteStatus, unmuteStatus, deleteStatus, editStatus } from 'flavours/glitch/actions/statuses';
+import { initMuteModal } from 'flavours/glitch/actions/mutes';
+import { initBlockModal } from 'flavours/glitch/actions/blocks';
+import { initReport } from 'flavours/glitch/actions/reports';
+import { initBoostModal } from 'flavours/glitch/actions/boosts';
+import { makeGetStatus } from 'flavours/glitch/selectors';
+import ScrollContainer from 'flavours/glitch/containers/scroll_container';
+import ColumnBackButton from 'flavours/glitch/components/column_back_button';
+import ColumnHeader from '../../components/column_header';
+import StatusContainer from 'flavours/glitch/containers/status_container';
+import { openModal } from 'flavours/glitch/actions/modal';
+import { defineMessages, injectIntl } from 'react-intl';
+import ImmutablePureComponent from 'react-immutable-pure-component';
+import { HotKeys } from 'react-hotkeys';
+import { boostModal, favouriteModal, deleteModal } from 'flavours/glitch/util/initial_state';
+import { attachFullscreenListener, detachFullscreenListener, isFullscreen } from 'flavours/glitch/util/fullscreen';
+import { autoUnfoldCW } from 'flavours/glitch/util/content_warning';
+import { textForScreenReader, defaultMediaVisibility } from 'flavours/glitch/components/status';
+import Icon from 'flavours/glitch/components/icon';
+
+const messages = defineMessages({
+  deleteConfirm: { id: 'confirmations.delete.confirm', defaultMessage: 'Delete' },
+  deleteMessage: { id: 'confirmations.delete.message', defaultMessage: 'Are you sure you want to delete this status?' },
+  redraftConfirm: { id: 'confirmations.redraft.confirm', defaultMessage: 'Delete & redraft' },
+  redraftMessage: { id: 'confirmations.redraft.message', defaultMessage: 'Are you sure you want to delete this status and re-draft it? You will lose all replies, boosts and favourites to it.' },
+  revealAll: { id: 'status.show_more_all', defaultMessage: 'Show more for all' },
+  hideAll: { id: 'status.show_less_all', defaultMessage: 'Show less for all' },
+  detailedStatus: { id: 'status.detailed_status', defaultMessage: 'Detailed conversation view' },
+  replyConfirm: { id: 'confirmations.reply.confirm', defaultMessage: 'Reply' },
+  replyMessage: { id: 'confirmations.reply.message', defaultMessage: 'Replying now will overwrite the message you are currently composing. Are you sure you want to proceed?' },
+  tootHeading: { id: 'column.toot', defaultMessage: 'Toots and replies' },
+});
+
+const makeMapStateToProps = () => {
+  const getStatus = makeGetStatus();
+
+  const getAncestorsIds = createSelector([
+    (_, { id }) => id,
+    state => state.getIn(['contexts', 'inReplyTos']),
+  ], (statusId, inReplyTos) => {
+    let ancestorsIds = Immutable.List();
+    ancestorsIds = ancestorsIds.withMutations(mutable => {
+      let id = statusId;
+
+      while (id && !mutable.includes(id)) {
+        mutable.unshift(id);
+        id = inReplyTos.get(id);
+      }
+    });
+
+    return ancestorsIds;
+  });
+
+  const getDescendantsIds = createSelector([
+    (_, { id }) => id,
+    state => state.getIn(['contexts', 'replies']),
+    state => state.get('statuses'),
+  ], (statusId, contextReplies, statuses) => {
+    let descendantsIds = [];
+    const ids = [statusId];
+
+    while (ids.length > 0) {
+      let id        = ids.pop();
+      const replies = contextReplies.get(id);
+
+      if (statusId !== id) {
+        descendantsIds.push(id);
+      }
+
+      if (replies) {
+        replies.reverse().forEach(reply => {
+          if (!ids.includes(reply) && !descendantsIds.includes(reply) && statusId !== reply) ids.push(reply);
+        });
+      }
+    }
+
+    let insertAt = descendantsIds.findIndex((id) => statuses.get(id).get('in_reply_to_account_id') !== statuses.get(id).get('account'));
+    if (insertAt !== -1) {
+      descendantsIds.forEach((id, idx) => {
+        if (idx > insertAt && statuses.get(id).get('in_reply_to_account_id') === statuses.get(id).get('account')) {
+          descendantsIds.splice(idx, 1);
+          descendantsIds.splice(insertAt, 0, id);
+          insertAt += 1;
+        }
+      });
+    }
+
+    return Immutable.List(descendantsIds);
+  });
+
+  const mapStateToProps = (state, props) => {
+    const status = getStatus(state, { id: props.params.statusId });
+    let ancestorsIds = Immutable.List();
+    let descendantsIds = Immutable.List();
+
+    if (status) {
+      ancestorsIds = getAncestorsIds(state, { id: status.get('in_reply_to_id') });
+      descendantsIds = getDescendantsIds(state, { id: status.get('id') });
+    }
+
+    return {
+      status,
+      ancestorsIds,
+      descendantsIds,
+      settings: state.get('local_settings'),
+      askReplyConfirmation: state.getIn(['local_settings', 'confirm_before_clearing_draft']) && state.getIn(['compose', 'text']).trim().length !== 0,
+      domain: state.getIn(['meta', 'domain']),
+      usingPiP: state.get('picture_in_picture').statusId === props.params.statusId,
+    };
+  };
+
+  return mapStateToProps;
+};
+
+export default @injectIntl
+@connect(makeMapStateToProps)
+class Status extends ImmutablePureComponent {
+
+  static contextTypes = {
+    router: PropTypes.object,
+  };
+
+  static propTypes = {
+    params: PropTypes.object.isRequired,
+    dispatch: PropTypes.func.isRequired,
+    status: ImmutablePropTypes.map,
+    settings: ImmutablePropTypes.map.isRequired,
+    ancestorsIds: ImmutablePropTypes.list,
+    descendantsIds: ImmutablePropTypes.list,
+    intl: PropTypes.object.isRequired,
+    askReplyConfirmation: PropTypes.bool,
+    multiColumn: PropTypes.bool,
+    domain: PropTypes.string.isRequired,
+    usingPiP: PropTypes.bool,
+  };
+
+  state = {
+    fullscreen: false,
+    isExpanded: undefined,
+    threadExpanded: undefined,
+    statusId: undefined,
+    loadedStatusId: undefined,
+    showMedia: undefined,
+    revealBehindCW: undefined,
+  };
+
+  componentDidMount () {
+    attachFullscreenListener(this.onFullScreenChange);
+    this.props.dispatch(fetchStatus(this.props.params.statusId));
+
+    const { status, ancestorsIds } = this.props;
+
+    if (status && ancestorsIds && ancestorsIds.size > 0) {
+      const element = this.node.querySelectorAll('.focusable')[ancestorsIds.size - 1];
+
+      window.requestAnimationFrame(() => {
+        element.scrollIntoView(true);
+      });
+    }
+  }
+
+  static getDerivedStateFromProps(props, state) {
+    let update = {};
+    let updated = false;
+
+    if (props.params.statusId && state.statusId !== props.params.statusId) {
+      props.dispatch(fetchStatus(props.params.statusId));
+      update.threadExpanded = undefined;
+      update.statusId = props.params.statusId;
+      updated = true;
+    }
+
+    const revealBehindCW = props.settings.getIn(['media', 'reveal_behind_cw']);
+    if (revealBehindCW !== state.revealBehindCW) {
+      update.revealBehindCW = revealBehindCW;
+      if (revealBehindCW) update.showMedia = defaultMediaVisibility(props.status, props.settings);
+      updated = true;
+    }
+
+    if (props.status && state.loadedStatusId !== props.status.get('id')) {
+      update.showMedia = defaultMediaVisibility(props.status, props.settings);
+      update.loadedStatusId = props.status.get('id');
+      update.isExpanded = autoUnfoldCW(props.settings, props.status);
+      updated = true;
+    }
+
+    return updated ? update : null;
+  }
+
+  handleExpandedToggle = () => {
+    if (this.props.status.get('spoiler_text')) {
+      this.setExpansion(!this.state.isExpanded);
+    }
+  };
+
+  handleToggleMediaVisibility = () => {
+    this.setState({ showMedia: !this.state.showMedia });
+  }
+
+  handleModalFavourite = (status) => {
+    this.props.dispatch(favourite(status));
+  }
+
+  handleFavouriteClick = (status, e) => {
+    if (status.get('favourited')) {
+      this.props.dispatch(unfavourite(status));
+    } else {
+      if ((e && e.shiftKey) || !favouriteModal) {
+        this.handleModalFavourite(status);
+      } else {
+        this.props.dispatch(openModal('FAVOURITE', { status, onFavourite: this.handleModalFavourite }));
+      }
+    }
+  }
+
+  handlePin = (status) => {
+    if (status.get('pinned')) {
+      this.props.dispatch(unpin(status));
+    } else {
+      this.props.dispatch(pin(status));
+    }
+  }
+
+  handleReplyClick = (status) => {
+    let { askReplyConfirmation, dispatch, intl } = this.props;
+    if (askReplyConfirmation) {
+      dispatch(openModal('CONFIRM', {
+        message: intl.formatMessage(messages.replyMessage),
+        confirm: intl.formatMessage(messages.replyConfirm),
+        onDoNotAsk: () => dispatch(changeLocalSetting(['confirm_before_clearing_draft'], false)),
+        onConfirm: () => dispatch(replyCompose(status, this.context.router.history)),
+      }));
+    } else {
+      dispatch(replyCompose(status, this.context.router.history));
+    }
+  }
+
+  handleModalReblog = (status, privacy) => {
+    const { dispatch } = this.props;
+
+    if (status.get('reblogged')) {
+      dispatch(unreblog(status));
+    } else {
+      dispatch(reblog(status, privacy));
+    }
+  }
+
+  handleReblogClick = (status, e) => {
+    const { settings, dispatch } = this.props;
+
+    if (settings.get('confirm_boost_missing_media_description') && status.get('media_attachments').some(item => !item.get('description')) && !status.get('reblogged')) {
+      dispatch(initBoostModal({ status, onReblog: this.handleModalReblog, missingMediaDescription: true }));
+    } else if ((e && e.shiftKey) || !boostModal) {
+      this.handleModalReblog(status);
+    } else {
+      dispatch(initBoostModal({ status, onReblog: this.handleModalReblog }));
+    }
+  }
+
+  handleBookmarkClick = (status) => {
+    if (status.get('bookmarked')) {
+      this.props.dispatch(unbookmark(status));
+    } else {
+      this.props.dispatch(bookmark(status));
+    }
+  }
+
+  handleDeleteClick = (status, history, withRedraft = false) => {
+    const { dispatch, intl } = this.props;
+
+    if (!deleteModal) {
+      dispatch(deleteStatus(status.get('id'), history, withRedraft));
+    } else {
+      dispatch(openModal('CONFIRM', {
+        message: intl.formatMessage(withRedraft ? messages.redraftMessage : messages.deleteMessage),
+        confirm: intl.formatMessage(withRedraft ? messages.redraftConfirm : messages.deleteConfirm),
+        onConfirm: () => dispatch(deleteStatus(status.get('id'), history, withRedraft)),
+      }));
+    }
+  }
+
+  handleEditClick = (status, history) => {
+    this.props.dispatch(editStatus(status.get('id'), history));
+  }
+
+  handleDirectClick = (account, router) => {
+    this.props.dispatch(directCompose(account, router));
+  }
+
+  handleMentionClick = (account, router) => {
+    this.props.dispatch(mentionCompose(account, router));
+  }
+
+  handleOpenMedia = (media, index) => {
+    this.props.dispatch(openModal('MEDIA', { statusId: this.props.status.get('id'), media, index }));
+  }
+
+  handleOpenVideo = (media, options) => {
+    this.props.dispatch(openModal('VIDEO', { statusId: this.props.status.get('id'), media, options }));
+  }
+
+  handleHotkeyOpenMedia = e => {
+    const { status } = this.props;
+
+    e.preventDefault();
+
+    if (status.get('media_attachments').size > 0) {
+      if (status.getIn(['media_attachments', 0, 'type']) === 'video') {
+        this.handleOpenVideo(status.getIn(['media_attachments', 0]), { startTime: 0 });
+      } else {
+        this.handleOpenMedia(status.get('media_attachments'), 0);
+      }
+    }
+  }
+
+  handleMuteClick = (account) => {
+    this.props.dispatch(initMuteModal(account));
+  }
+
+  handleConversationMuteClick = (status) => {
+    if (status.get('muted')) {
+      this.props.dispatch(unmuteStatus(status.get('id')));
+    } else {
+      this.props.dispatch(muteStatus(status.get('id')));
+    }
+  }
+
+  handleToggleAll = () => {
+    const { isExpanded } = this.state;
+    this.setState({ isExpanded: !isExpanded, threadExpanded: !isExpanded });
+  }
+
+  handleBlockClick = (status) => {
+    const { dispatch } = this.props;
+    const account = status.get('account');
+    dispatch(initBlockModal(account));
+  }
+
+  handleReport = (status) => {
+    this.props.dispatch(initReport(status.get('account'), status));
+  }
+
+  handleEmbed = (status) => {
+    this.props.dispatch(openModal('EMBED', { url: status.get('url') }));
+  }
+
+  handleHotkeyToggleSensitive = () => {
+    this.handleToggleMediaVisibility();
+  }
+
+  handleHotkeyMoveUp = () => {
+    this.handleMoveUp(this.props.status.get('id'));
+  }
+
+  handleHotkeyMoveDown = () => {
+    this.handleMoveDown(this.props.status.get('id'));
+  }
+
+  handleHotkeyReply = e => {
+    e.preventDefault();
+    this.handleReplyClick(this.props.status);
+  }
+
+  handleHotkeyFavourite = () => {
+    this.handleFavouriteClick(this.props.status);
+  }
+
+  handleHotkeyBoost = () => {
+    this.handleReblogClick(this.props.status);
+  }
+
+  handleHotkeyBookmark = () => {
+    this.handleBookmarkClick(this.props.status);
+  }
+
+  handleHotkeyMention = e => {
+    e.preventDefault();
+    this.handleMentionClick(this.props.status);
+  }
+
+  handleHotkeyOpenProfile = () => {
+    let state = {...this.context.router.history.location.state};
+    state.mastodonBackSteps = (state.mastodonBackSteps || 0) + 1;
+    this.context.router.history.push(`/@${this.props.status.getIn(['account', 'acct'])}`, state);
+  }
+
+  handleMoveUp = id => {
+    const { status, ancestorsIds, descendantsIds } = this.props;
+
+    if (id === status.get('id')) {
+      this._selectChild(ancestorsIds.size - 1, true);
+    } else {
+      let index = ancestorsIds.indexOf(id);
+
+      if (index === -1) {
+        index = descendantsIds.indexOf(id);
+        this._selectChild(ancestorsIds.size + index, true);
+      } else {
+        this._selectChild(index - 1, true);
+      }
+    }
+  }
+
+  handleMoveDown = id => {
+    const { status, ancestorsIds, descendantsIds } = this.props;
+
+    if (id === status.get('id')) {
+      this._selectChild(ancestorsIds.size + 1, false);
+    } else {
+      let index = ancestorsIds.indexOf(id);
+
+      if (index === -1) {
+        index = descendantsIds.indexOf(id);
+        this._selectChild(ancestorsIds.size + index + 2, false);
+      } else {
+        this._selectChild(index + 1, false);
+      }
+    }
+  }
+
+  _selectChild (index, align_top) {
+    const container = this.node;
+    const element = container.querySelectorAll('.focusable')[index];
+
+    if (element) {
+      if (align_top && container.scrollTop > element.offsetTop) {
+        element.scrollIntoView(true);
+      } else if (!align_top && container.scrollTop + container.clientHeight < element.offsetTop + element.offsetHeight) {
+        element.scrollIntoView(false);
+      }
+      element.focus();
+    }
+  }
+
+  handleHeaderClick = () => {
+    this.column.scrollTop();
+  }
+
+  renderChildren (list) {
+    return list.map(id => (
+      <StatusContainer
+        key={id}
+        id={id}
+        expanded={this.state.threadExpanded}
+        onMoveUp={this.handleMoveUp}
+        onMoveDown={this.handleMoveDown}
+        contextType='thread'
+      />
+    ));
+  }
+
+  setExpansion = value => {
+    this.setState({ isExpanded: value });
+  }
+
+  setRef = c => {
+    this.node = c;
+  }
+
+  setColumnRef = c => {
+    this.column = c;
+  }
+
+  componentDidUpdate (prevProps) {
+    if (this.props.params.statusId && (this.props.params.statusId !== prevProps.params.statusId || prevProps.ancestorsIds.size < this.props.ancestorsIds.size)) {
+      const { status, ancestorsIds } = this.props;
+
+      if (status && ancestorsIds && ancestorsIds.size > 0) {
+        const element = this.node.querySelectorAll('.focusable')[ancestorsIds.size - 1];
+
+        window.requestAnimationFrame(() => {
+          element.scrollIntoView(true);
+        });
+      }
+    }
+  }
+
+  componentWillUnmount () {
+    detachFullscreenListener(this.onFullScreenChange);
+  }
+
+  onFullScreenChange = () => {
+    this.setState({ fullscreen: isFullscreen() });
+  }
+
+  render () {
+    let ancestors, descendants;
+    const { setExpansion } = this;
+    const { status, settings, ancestorsIds, descendantsIds, intl, domain, multiColumn, usingPiP } = this.props;
+    const { fullscreen, isExpanded } = this.state;
+
+    if (status === null) {
+      return (
+        <Column>
+          <ColumnBackButton multiColumn={multiColumn} />
+          <MissingIndicator />
+        </Column>
+      );
+    }
+
+    if (ancestorsIds && ancestorsIds.size > 0) {
+      ancestors = <div>{this.renderChildren(ancestorsIds)}</div>;
+    }
+
+    if (descendantsIds && descendantsIds.size > 0) {
+      descendants = <div>{this.renderChildren(descendantsIds)}</div>;
+    }
+
+    const handlers = {
+      moveUp: this.handleHotkeyMoveUp,
+      moveDown: this.handleHotkeyMoveDown,
+      reply: this.handleHotkeyReply,
+      favourite: this.handleHotkeyFavourite,
+      boost: this.handleHotkeyBoost,
+      bookmark: this.handleHotkeyBookmark,
+      mention: this.handleHotkeyMention,
+      openProfile: this.handleHotkeyOpenProfile,
+      toggleSpoiler: this.handleExpandedToggle,
+      toggleSensitive: this.handleHotkeyToggleSensitive,
+      openMedia: this.handleHotkeyOpenMedia,
+    };
+
+    return (
+      <Column bindToDocument={!multiColumn} ref={this.setColumnRef} label={intl.formatMessage(messages.detailedStatus)}>
+        <ColumnHeader
+          icon='comment'
+          title={intl.formatMessage(messages.tootHeading)}
+          onClick={this.handleHeaderClick}
+          showBackButton
+          multiColumn={multiColumn}
+          extraButton={(
+            <button className='column-header__button' title={intl.formatMessage(!isExpanded ? messages.revealAll : messages.hideAll)} aria-label={intl.formatMessage(!isExpanded ? messages.revealAll : messages.hideAll)} onClick={this.handleToggleAll} aria-pressed={!isExpanded ? 'false' : 'true'}><Icon id={!isExpanded ? 'eye-slash' : 'eye'} /></button>
+          )}
+        />
+
+        <ScrollContainer scrollKey='thread'>
+          <div className={classNames('scrollable', 'detailed-status__wrapper', { fullscreen })} ref={this.setRef}>
+            {ancestors}
+
+            <HotKeys handlers={handlers}>
+              <div className='focusable' tabIndex='0' aria-label={textForScreenReader(intl, status, false, isExpanded)}>
+                <DetailedStatus
+                  key={`details-${status.get('id')}`}
+                  status={status}
+                  settings={settings}
+                  onOpenVideo={this.handleOpenVideo}
+                  onOpenMedia={this.handleOpenMedia}
+                  expanded={isExpanded}
+                  onToggleHidden={this.handleExpandedToggle}
+                  domain={domain}
+                  showMedia={this.state.showMedia}
+                  onToggleMediaVisibility={this.handleToggleMediaVisibility}
+                  usingPiP={usingPiP}
+                />
+
+                <ActionBar
+                  key={`action-bar-${status.get('id')}`}
+                  status={status}
+                  onReply={this.handleReplyClick}
+                  onFavourite={this.handleFavouriteClick}
+                  onReblog={this.handleReblogClick}
+                  onBookmark={this.handleBookmarkClick}
+                  onDelete={this.handleDeleteClick}
+                  onEdit={this.handleEditClick}
+                  onDirect={this.handleDirectClick}
+                  onMention={this.handleMentionClick}
+                  onMute={this.handleMuteClick}
+                  onMuteConversation={this.handleConversationMuteClick}
+                  onBlock={this.handleBlockClick}
+                  onReport={this.handleReport}
+                  onPin={this.handlePin}
+                  onEmbed={this.handleEmbed}
+                />
+              </div>
+            </HotKeys>
+
+            {descendants}
+          </div>
+        </ScrollContainer>
+      </Column>
+    );
+  }
+
+}