action: Stop processing chained actions/commands in the moment the current Pane is not a BufPane (fix crash)

cmd/micro/initlua.go

@@ -48,7 +48,7 @@ func luaImportMicro() *lua.LTable {
 	ulua.L.SetField(pkg, "InfoBar", luar.New(ulua.L, action.GetInfoBar))
 	ulua.L.SetField(pkg, "Log", luar.New(ulua.L, log.Println))
 	ulua.L.SetField(pkg, "SetStatusInfoFn", luar.New(ulua.L, display.SetStatusInfoFnLua))
-	ulua.L.SetField(pkg, "CurPane", luar.New(ulua.L, func() action.Pane {
+	ulua.L.SetField(pkg, "CurPane", luar.New(ulua.L, func() *action.BufPane {
 		return action.MainTab().CurPane()
 	}))
 	ulua.L.SetField(pkg, "CurTab", luar.New(ulua.L, action.MainTab))

internal/action/bufpane.go

@@ -169,6 +169,10 @@ func BufMapEvent(k Event, action string) {
 			// if the action changed the current pane, update the reference
 			h = MainTab().CurPane()
 			success = innerSuccess
+			if h == nil {
+				// stop, in case the current pane is not a BufPane
+				break
+			}
 		}
 		return true
 	}

internal/action/termpane.go

@@ -81,6 +81,10 @@ func (t *TermPane) SetID(i uint64) {
 	t.id = i
 }
 
+func (t *TermPane) Name() string {
+	return t.Terminal.Name()
+}
+
 func (t *TermPane) SetTab(tab *Tab) {
 	t.tab = tab
 }