add Destroy room button, show error notification on presence error and show disabled lambda icon when not focused on any chat

gtk-helpers.go

@@ -50,6 +50,7 @@ func switchToTab(jid string, w *gtk.Window) {
 
 	scroller.SetChild(typed_tab.msgs)
 	if typed_tab.isMuc {
+
 		m, ok := mucmembers.Load(jid)
 		if !ok {
 			return
@@ -61,7 +62,9 @@ func switchToTab(jid string, w *gtk.Window) {
 		mm := ma.Members
 		gen := gtk.NewBox(gtk.OrientationVertical, 0)
 
+		i := 0
 		mm.Range(func(k, v any) bool {
+			i++
 			userbox := gtk.NewBox(gtk.OrientationHorizontal, 0)
 
 			u := v.(stanza.Presence)
@@ -76,36 +79,13 @@ func switchToTab(jid string, w *gtk.Window) {
 
 			nick_label := gtk.NewLabel(JidMustParse(u.From).Resource)
 			nick_label.SetEllipsize(pango.EllipsizeEnd)
-			/*
-				affil_label := gtk.NewLabel("")
-				switch mu.MucUserItem.Affiliation {
-				case "owner":
-					affil_label.SetText("O")
-				case "admin":
-					affil_label.SetText("A")
-				case "member":
-					affil_label.SetText("M")
-				case "none":
-					affil_label.SetText("-")
-				}
-			*/
-
 			nick_label.AddCSSClass(mu.MucUserItem.Role)
 			if mu.MucUserItem.Role == "visitor" {
 				nick_label.SetOpacity(0.5)
 			}
 
-			/*
-				affil_label.SetHAlign(gtk.AlignEnd)
-				affil_label.SetHExpand(true)
-
-
-				affil_label.AddCSSClass(mu.MucUserItem.Affiliation)
-			*/
-
 			userbox.SetTooltipText(fmt.Sprintf("%s\n%s\n%s\nRight-click for more information", u.From, mu.MucUserItem.Role, mu.MucUserItem.Affiliation))
 			userbox.Append(nick_label)
-			// userbox.Append(affil_label)
 
 			var hats Hats
 			ok := u.Get(&hats)
@@ -113,8 +93,6 @@ func switchToTab(jid string, w *gtk.Window) {
 				for _, hat := range hats.Hats {
 				tag := gtk.NewImageFromPaintable(clientAssets["tag"])
 				tag.SetTooltipText(hat.Title)
-				// tag.SetHAlign(gtk.AlignEnd)
-				// tag.SetHExpand(true)
 				userbox.Prepend(tag)
 				}
 			}
@@ -274,6 +252,11 @@ func switchToTab(jid string, w *gtk.Window) {
 			return true
 		})
 
+		headerBox := gtk.NewBox(gtk.OrientationHorizontal, 0)
+		headerBox.Append(gtk.NewImageFromPaintable(clientAssets["group"]))
+		headerBox.Append(gtk.NewLabel(fmt.Sprintf("%d participant(s)", i)))
+		gen.Prepend(headerBox)
+
 		memberList.SetChild(gen)
 	} else {
 		memberList.SetChild(gtk.NewLabel(jid))