MM-11606: Back to prev channel on close archived channel (#2183)

app/actions/views/channel.js

@@ -297,6 +297,8 @@ export function selectPenultimateChannel(teamId) {
             (lastChannel.delete_at === 0 || viewArchivedChannels) &&
             (lastChannel.team_id === teamId || isDMVisible || isGMVisible)
         ) {
+            dispatch(setChannelLoading(true));
+            dispatch(setChannelDisplayName(lastChannel.display_name));
             dispatch(handleSelectChannel(lastChannelId));
             dispatch(markChannelAsRead(lastChannelId));
             return;

app/components/post_textbox/index.js

@@ -7,14 +7,14 @@ import {connect} from 'react-redux';
 import {General} from 'mattermost-redux/constants';
 import {createPost} from 'mattermost-redux/actions/posts';
 import {setStatus} from 'mattermost-redux/actions/users';
-import {getCurrentChannel, isCurrentChannelReadOnly, getDefaultChannel} from 'mattermost-redux/selectors/entities/channels';
+import {getCurrentChannel, isCurrentChannelReadOnly} from 'mattermost-redux/selectors/entities/channels';
 import {canUploadFilesOnMobile, getConfig} from 'mattermost-redux/selectors/entities/general';
 import {getTheme} from 'mattermost-redux/selectors/entities/preferences';
 import {getCurrentUserId, getStatusForUserId} from 'mattermost-redux/selectors/entities/users';
 
 import {executeCommand} from 'app/actions/views/command';
 import {addReactionToLatestPost} from 'app/actions/views/emoji';
-import {handlePostDraftChanged, setChannelDisplayName, setChannelLoading} from 'app/actions/views/channel';
+import {handlePostDraftChanged, selectPenultimateChannel} from 'app/actions/views/channel';
 import {handleClearFiles, handleClearFailedFiles, handleRemoveLastFile, initUploadFiles} from 'app/actions/views/file_upload';
 import {handleCommentDraftChanged, handleCommentDraftSelectionChanged} from 'app/actions/views/thread';
 import {userTyping} from 'app/actions/views/typing';
@@ -44,6 +44,7 @@ function mapStateToProps(state, ownProps) {
 
     return {
         channelId: ownProps.channelId || (currentChannel ? currentChannel.id : ''),
+        channelTeamId: currentChannel.team_id,
         canUploadFiles: canUploadFilesOnMobile(state),
         channelIsLoading: state.views.channel.loading,
         channelIsReadOnly: isCurrentChannelReadOnly(state),
@@ -56,7 +57,6 @@ function mapStateToProps(state, ownProps) {
         theme: getTheme(state),
         uploadFileRequestStatus: state.requests.files.uploadFiles.status,
         value: currentDraft.draft,
-        defaultChannel: getDefaultChannel(state),
     };
 }
 
@@ -75,8 +75,7 @@ function mapDispatchToProps(dispatch) {
             userTyping,
             handleCommentDraftSelectionChanged,
             setStatus,
-            setChannelDisplayName,
-            setChannelLoading,
+            selectPenultimateChannel,
         }, dispatch),
     };
 }

app/components/post_textbox/post_textbox.js

@@ -38,11 +38,11 @@ export default class PostTextbox extends PureComponent {
             userTyping: PropTypes.func.isRequired,
             handleCommentDraftSelectionChanged: PropTypes.func.isRequired,
             setStatus: PropTypes.func.isRequired,
-            setChannelDisplayName: PropTypes.func.isRequired,
-            setChannelLoading: PropTypes.func.isRequired,
+            selectPenultimateChannel: PropTypes.func.isRequired,
         }).isRequired,
         canUploadFiles: PropTypes.bool.isRequired,
         channelId: PropTypes.string.isRequired,
+        channelTeamId: PropTypes.string.isRequired,
         channelIsLoading: PropTypes.bool,
         channelIsReadOnly: PropTypes.bool.isRequired,
         currentUserId: PropTypes.string.isRequired,
@@ -56,7 +56,6 @@ export default class PostTextbox extends PureComponent {
         value: PropTypes.string.isRequired,
         userIsOutOfOffice: PropTypes.bool.isRequired,
         channelIsArchived: PropTypes.bool,
-        defaultChannel: PropTypes.object,
         onCloseChannel: PropTypes.func,
     };
 
@@ -460,11 +459,8 @@ export default class PostTextbox extends PureComponent {
     };
 
     onCloseChannelPress = () => {
-        const {defaultChannel, channelId, onCloseChannel} = this.props;
-        const {setChannelDisplayName, setChannelLoading} = this.props.actions;
-        setChannelLoading(true);
-        setChannelDisplayName(defaultChannel.display_name);
-        EventEmitter.emit('switch_channel', defaultChannel, channelId);
+        const {onCloseChannel, channelTeamId} = this.props;
+        this.props.actions.selectPenultimateChannel(channelTeamId);
         if (onCloseChannel) {
             onCloseChannel();
         }