Don't run UI code in HandleMessage when headless

headless/headless.go

@@ -36,6 +36,7 @@ func Init(conf Config, updates chan fmt.Stringer) error {
 	}
 
 	gmx := initialize.NewGomuks(ui.NewGomuksUI, configDir, dataDir, cacheDir, downloadDir)
+	gmx.Matrix().(*matrix.Container).SetHeadless()
 	err = gmx.StartHeadless()
 	if err != nil {
 		return err

matrix/matrix.go

@@ -53,15 +53,16 @@ import (
 //
 // It is used for all Matrix calls from the UI and Matrix event handlers.
 type Container struct {
-	client  *mautrix.Client
-	crypto  ifc.Crypto
-	syncer  *GomuksSyncer
-	gmx     ifc.Gomuks
-	ui      ifc.GomuksUI
-	config  *config.Config
-	history *HistoryManager
-	running bool
-	stop    chan bool
+	client   *mautrix.Client
+	crypto   ifc.Crypto
+	syncer   *GomuksSyncer
+	gmx      ifc.Gomuks
+	ui       ifc.GomuksUI
+	config   *config.Config
+	history  *HistoryManager
+	running  bool
+	stop     chan bool
+	headless bool
 
 	typing int64
 }
@@ -77,6 +78,10 @@ func NewContainer(gmx ifc.Gomuks) *Container {
 	return c
 }
 
+func (c *Container) SetHeadless() {
+	c.headless = true
+}
+
 // Client returns the underlying mautrix Client.
 func (c *Container) Client() *mautrix.Client {
 	return c.client
@@ -689,6 +694,10 @@ func (c *Container) HandleMessage(source mautrix.EventSource, mxEvent *event.Eve
 		return
 	}
 
+	if c.headless {
+		return
+	}
+
 	mainView := c.ui.MainView()
 
 	roomView := mainView.GetRoom(evt.RoomID)