updates for v0.22 gui changes

Makefile

@@ -6,6 +6,7 @@ all:
 	@echo It creates a binary tree of widgets
 	@echo The widgets are things like Windows, Buttons, Labels, etc
 	@echo
+	@go vet
 
 note-about-golang:
 ifeq ($(GO111MODULE),)

common.go

@@ -201,6 +201,12 @@ myButton = myGroup.NewButton("hit ball", nil).SetName("HIT")
 myButton.GetName() should return "HIT"
 n = Find("HIT") should return myButton
 */
+// switch to this
+// todo: there are better ways than any of this once protobuf
+func (n *Node) SetRefName(s string) *Node {
+	return n.SetProgName(s)
+}
+
 func (n *Node) SetProgName(s string) *Node {
 	if !n.Ready() {
 		return n
@@ -335,7 +341,6 @@ func (n *Node) Ready() bool {
 		panic("ready got nil")
 		// TODO: figure out if you can identify the code trace
 		// to help find the root cause
-		return false
 	}
 	return true
 }

main.go

@@ -262,22 +262,47 @@ func New() *Node {
 
 // try to load andlabs, if that doesn't work, fall back to the console
 func (n *Node) Default() *Node {
+	var err error
 	if argGui.GuiPlugin != "" {
 		log.Log(WARN, "New.Default() try toolkit =", argGui.GuiPlugin)
-		return n.LoadToolkit(argGui.GuiPlugin)
+		if n, err = n.LoadToolkit(argGui.GuiPlugin); err == nil {
+			return n
+		}
+		log.Log(WARN, "LoadToolkit() failed for =", argGui.GuiPlugin)
 	}
 	// if DISPLAY isn't set, return since gtk can't load
 	// TODO: figure out how to check what to do in macos and mswindows
 	if os.Getenv("DISPLAY") == "" {
-		if n.LoadToolkit("gocui") == nil {
+		if n, err = n.LoadToolkit("gocui"); err == nil {
-			log.Log(WARN, "New() failed to load gocui")
-		}
 			return n
 		}
-	if n.LoadToolkit("andlabs") != nil {
+		log.Log(WARN, "LoadToolkit() failed to load gocui")
+	}
+	if n, err = n.LoadToolkit("andlabs"); err == nil {
 		return n
 	}
-	n.LoadToolkit("gocui")
+	log.Log(WARN, "LoadToolkit() failed to load andlabs")
+
+	if n, err = n.LoadToolkit("gocui"); err == nil {
+		return n
+	}
+	log.Log(WARN, "LoadToolkit() failed to load gocui")
+
+	log.Log(WARN, "")
+	log.Log(WARN, "### Error ####")
+	log.Log(WARN, "The GUI golang plugins did not load.")
+	log.Log(WARN, "You will have to rebuild them")
+	log.Log(WARN, "go-clone go.wit.com/toolkits/<pick one>/")
+	log.Log(WARN, "TODO: try to rebuild them here")
+	log.Log(WARN, "TODO: falling back to STDIN interface")
+	log.Log(WARN, "### Error ####")
+	log.Log(WARN, "")
+	log.Sleep(7)
+
+	if n, err = n.LoadToolkit("nocui"); err == nil {
+		return n
+	}
+	log.Log(WARN, "LoadToolkit() failed to load nocui")
 	return n
 }
 

plugin.go

@@ -7,6 +7,7 @@ package gui
 
 import (
 	"embed"
+	"errors"
 	"os"
 	"plugin"
 
@@ -279,23 +280,11 @@ func (n *Node) ListToolkits() {
 	}
 }
 
-func (n *Node) LoadToolkit(name string) *Node {
+func (n *Node) LoadToolkit(name string) (*Node, error) {
 	log.Log(PLUG, "LoadToolkit() START for name =", name)
 	plug := initPlugin(name)
 	if plug == nil {
-		log.Log(WARN, "LoadToolkit() FAILED name =", name)
+		return n, errors.New("initPlugin(" + name + ") failed")
-		log.Log(WARN, "")
-		log.Log(WARN, "### Error ####")
-		log.Log(WARN, "The GUI golang plugins did not load.")
-		log.Log(WARN, "You will have to rebuild them")
-		log.Log(WARN, "go-clone go.wit.com/toolkits/<pick one>/")
-		log.Log(WARN, "TODO: try to rebuild them here")
-		log.Log(WARN, "TODO: fall back to STDIN interface")
-		log.Log(WARN, "### Error ####")
-		log.Log(WARN, "")
-		log.Log(WARN, "")
-		log.Sleep(7)
-		return n
 	}
 	plug.dead = false
 
@@ -308,7 +297,7 @@ func (n *Node) LoadToolkit(name string) *Node {
 	// TODO: find a new way to do this that is locking, safe and accurate
 	me.rootNode.redraw(plug)
 	log.Log(PLUG, "LoadToolkit() END for name =", name)
-	return n
+	return n, nil
 }
 
 func (n *Node) CloseToolkit(name string) bool {