Add DisplayMode to UserPreferences

config/config.go

@@ -62,6 +62,8 @@ type UserPreferences struct {
 	AltEnterToSend       bool `yaml:"alt_enter_to_send"`
 
 	InlineURLMode string `yaml:"inline_url_mode"`
+
+	DisplayMode DisplayMode `yaml:"display_mode"`
 }
 
 var InlineURLsProbablySupported bool

config/display-mode.go

@@ -0,0 +1,24 @@
+// gomuks - A terminal Matrix client written in Go.
+// Copyright (C) 2020 Tulir Asokan
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+package config
+
+type DisplayMode string
+
+const (
+	DisplayModeIRC    DisplayMode = "irc"
+	DisplayModeModern DisplayMode = "modern"
+)

ui/commands.go

@@ -44,6 +44,7 @@ import (
 	"maunium.net/go/mautrix/format"
 	"maunium.net/go/mautrix/id"
 
+	"maunium.net/go/gomuks/config"
 	"maunium.net/go/gomuks/debug"
 	"maunium.net/go/gomuks/lib/filepicker"
 )
@@ -1040,6 +1041,16 @@ func cmdToggle(cmd *Command) {
 				cmd.Reply("Force-enabled using fancy terminal features to render URLs inside text. Restart gomuks to apply changes.")
 			}
 			continue
+		case "displaymode":
+			switch cmd.Config.Preferences.DisplayMode {
+			case "modern":
+				cmd.Config.Preferences.DisplayMode = config.DisplayModeIRC
+				cmd.Reply("Enabled IRC display mode. Restart gomuks to apply changes.")
+			default:
+				cmd.Config.Preferences.DisplayMode = config.DisplayModeModern
+				cmd.Reply("Enabled modern display mode. Restart gomuks to apply changes.")
+			}
+			continue
 		case "newline":
 			val = &cmd.Config.Preferences.AltEnterToSend
 		default: