Mark category as read (#24003)

* Mark category as read

* Fix lint and test

* Fix tests

* Fix test and remove wrong aria

* Address server issues and add mark as read for unreads

* Missing changes

* Fix tests

* fix tests

* Add confirmation popup to mark as read category

* Always use viewMultipleChannels and other fixes

* Remove unneeded code

* Fix test

* Address feedback

* Address feedback

* Fix tests

* Fix test

* Fix tests

* Update aria-haspopup depending on the number of channels to mark as viewed

---------

Co-authored-by: Mattermost Build <build@mattermost.com>

server/public/model/client4.go

@@ -3540,6 +3540,27 @@ func (c *Client4) ViewChannel(ctx context.Context, userId string, view *ChannelV
 	return ch, BuildResponse(r), nil
 }
 
+// ReadMultipleChannels performs a view action on several channels at the same time for a user.
+func (c *Client4) ReadMultipleChannels(ctx context.Context, userId string, channelIds []string) (*ChannelViewResponse, *Response, error) {
+	url := fmt.Sprintf(c.channelsRoute()+"/members/%v/mark_read", userId)
+	buf, err := json.Marshal(channelIds)
+	if err != nil {
+		return nil, nil, NewAppError("ReadMultipleChannels", "api.marshal_error", nil, "", http.StatusInternalServerError).Wrap(err)
+	}
+	r, err := c.DoAPIPostBytes(ctx, url, buf)
+	if err != nil {
+		return nil, BuildResponse(r), err
+	}
+	defer closeBody(r)
+
+	var ch *ChannelViewResponse
+	err = json.NewDecoder(r.Body).Decode(&ch)
+	if err != nil {
+		return nil, BuildResponse(r), NewAppError("ReadMultipleChannels", "api.unmarshal_error", nil, "", http.StatusInternalServerError).Wrap(err)
+	}
+	return ch, BuildResponse(r), nil
+}
+
 // GetChannelUnread will return a ChannelUnread object that contains the number of
 // unread messages and mentions for a user.
 func (c *Client4) GetChannelUnread(ctx context.Context, channelId, userId string) (*ChannelUnread, *Response, error) {

server/public/model/websocket_message.go

@@ -48,6 +48,7 @@ const (
 	WebsocketEventResponse                            = "response"
 	WebsocketEventEmojiAdded                          = "emoji_added"
 	WebsocketEventChannelViewed                       = "channel_viewed"
+	WebsocketEventMultipleChannelsViewed              = "multiple_channels_viewed"
 	WebsocketEventPluginStatusesChanged               = "plugin_statuses_changed"
 	WebsocketEventPluginEnabled                       = "plugin_enabled"
 	WebsocketEventPluginDisabled                      = "plugin_disabled"