finally add a ToolkitInit()

2 files changed, 22 insertions, 0 deletions

diff --git a/action.go b/action.go
index 86ce14e..7a9c352 100644
--- a/action.go
+++ b/action.go
@@ -12,11 +12,26 @@ import (
 
 // everything from the application goes through here
 func (me *TreeInfo) doAction(a widget.Action) {
+	if a.ActionType == widget.ToolkitInit {
+		log.Log(TREEWARN, "tree.doAction() trapped ToolkitInit finally!")
+		if me.ToolkitInit != nil {
+			log.Log(TREEWARN, "tree.doAction() doing ToolkitInit()")
+			me.ToolkitInit()
+		} else {
+			log.Log(TREEWARN, "tree.doAction() me.ToolkitInit() == nil")
+		}
+		return
+	}
 	if a.TablePB != nil {
 		log.Log(TREEWARN, "tree: got a TablePB")
 		me.doTable(a)
 		return
 	}
+	if a.WidgetId == 0 {
+		if treeRoot == nil {
+			log.Log(TREEWARN, "tree.doAction() yes, treeRoot is nil. add here")
+		}
+	}
 	n := treeRoot.FindWidgetId(a.WidgetId)
 	switch a.ActionType {
 	case widget.Add:
@@ -33,6 +48,12 @@ func (me *TreeInfo) doAction(a widget.Action) {
 		// log.Log(TREEWARN, "tree.FindWidgetId() n == nil", a.State.CurrentS)
 		// log.Log(TREEWARN, "tree.FindWidgetId() n == nil. A bug in your application?")
 		log.Log(TREEWARN, "tree.doAction() bug in gui. trying to do action", a.ActionType, "before widget init() wId =", a.WidgetId)
+		if a.WidgetId == 0 {
+			log.Log(TREEWARN, "tree.doAction() bug in gui. on wId zero. is treeRoot nil?")
+			if treeRoot == nil {
+				log.Log(TREEWARN, "tree.doAction() yes, treeRoot is nil")
+			}
+		}
 		return
 	}
 
diff --git a/structs.go b/structs.go
index 7919856..8224df6 100644
--- a/structs.go
+++ b/structs.go
@@ -29,6 +29,7 @@ type TreeInfo struct {
 	SetTitle     func(*Node, string) // update the title of a window or tab
 	SetLabel     func(*Node, string) // update the "label" (aka "Name") for a widget
 	SetChecked   func(*Node, bool)   // set the state of a checkbox
+	ToolkitInit  func()              // init the plugin
 	ToolkitClose func()              // shutdown and unload the plugin
 	Show         func(*Node)         // show a widget
 	Hide         func(*Node)         // hide a widget