From 5005edc9e37cb207f6c6035ea6fe3c3d98d94caa Mon Sep 17 00:00:00 2001
From: Jeff Carr <jcarr@wit.com>
Date: Mon, 20 Jan 2025 05:06:08 -0600
Subject: add a 'app' defined default plugin variable

---
 Makefile   | 13 ++++++++-----
 init.go    | 12 ++++++++++++
 plugin.go  | 40 ++++++++++++++++++++--------------------
 structs.go |  5 ++---
 4 files changed, 42 insertions(+), 28 deletions(-)

diff --git a/Makefile b/Makefile
index 3adf833..83bbf8d 100644
--- a/Makefile
+++ b/Makefile
@@ -1,14 +1,17 @@
-all: goimports vet
+all:
 	@echo
-	@echo This is the core gui package 'go.wit.com/gui/gui'
+	@echo This is the core GUI package 'go.wit.com/gui'
 	@echo
-	@echo It creates a binary tree of widgets
-	@echo The widgets are things like Windows, Buttons, Labels, etc
+	@echo "It creates a binary tree of widgets (Windows, Buttons, etc)"
+	@echo "This is the interface to the GUI GO plugin (ncurses, GTK, etc)"
 	@echo
+	@echo "todo: rewrite this using protobufs"
+	@echo
+	@make  goimports vet
 
 vet:
 	@GO111MODULE=off go vet
-	@echo go vet: this go library package builds okay
+	@echo go vet: this go library should build okay
 
 goimports:
 	goimports -w *.go
diff --git a/init.go b/init.go
index 4dfbf07..3883fa1 100644
--- a/init.go
+++ b/init.go
@@ -280,6 +280,12 @@ func (n *Node) Default() *Node {
 		log.Log(WARN, "LoadToolkit() failed for =", argGui.GuiPlugin)
 		return nil
 	}
+	if me.appPlugin != "" {
+		if n, err = n.LoadToolkit(me.appPlugin); err == nil {
+			return n
+		}
+	}
+
 	// 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") == "" {
@@ -393,3 +399,9 @@ func trapStdout() {
 
 	// defer guioutf.Close()
 }
+
+// sets the applications requested plugin
+// the command line arguements override this
+func (n *Node) SetAppDefaultPlugin(plugname string) {
+	me.appPlugin = plugname
+}
diff --git a/plugin.go b/plugin.go
index 72b3112..7e8ad3c 100644
--- a/plugin.go
+++ b/plugin.go
@@ -56,6 +56,26 @@ type aplug struct {
 
 var allPlugins []*aplug
 
+func (n *Node) LoadToolkit(name string) (*Node, error) {
+	log.Log(PLUG, "LoadToolkit() START for name =", name)
+	plug := initPlugin(name)
+	if plug == nil {
+		return n, errors.New("initPlugin(" + name + ") failed")
+	}
+	plug.dead = false
+
+	log.Log(PLUG, "LoadToolkit() sending Toolkit Init action to the plugin channel")
+	var a widget.Action
+	a.ActionType = widget.ToolkitInit
+	plug.pluginChan <- a
+	// sleep(.5) // temp hack until chan communication is setup
+
+	// 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, nil
+}
+
 // loads and initializes a toolkit (andlabs/ui, gocui, etc)
 // attempts to locate the .so file
 func initPlugin(name string) *aplug {
@@ -281,26 +301,6 @@ func (n *Node) ListToolkits() {
 	}
 }
 
-func (n *Node) LoadToolkit(name string) (*Node, error) {
-	log.Log(PLUG, "LoadToolkit() START for name =", name)
-	plug := initPlugin(name)
-	if plug == nil {
-		return n, errors.New("initPlugin(" + name + ") failed")
-	}
-	plug.dead = false
-
-	log.Log(PLUG, "LoadToolkit() sending Toolkit Init action to the plugin channel")
-	var a widget.Action
-	a.ActionType = widget.ToolkitInit
-	plug.pluginChan <- a
-	// sleep(.5) // temp hack until chan communication is setup
-
-	// 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, nil
-}
-
 func (n *Node) CloseToolkit(name string) bool {
 	log.Log(PLUG, "CloseToolkit() for name =", name)
 	for i, plug := range allPlugins {
diff --git a/structs.go b/structs.go
index 9c5789e..09fbf1f 100644
--- a/structs.go
+++ b/structs.go
@@ -56,9 +56,8 @@ type guiConfig struct {
 	// option to pass in compiled plugins as embedded files
 	resFS embed.FS
 
-	// used to beautify logging to Stdout
-	//	depth      int
-	//	prefix     string
+	// what the application would like the default GUI plugin to be
+	appPlugin string
 }
 
 /*
-- 
cgit v1.2.3