4 files changed, 278 insertions, 0 deletions
diff --git a/cmds/gui-example/Makefile b/cmds/gui-example/Makefile
new file mode 100644
index 0000000..638cffc
--- /dev/null
+++ b/cmds/gui-example/Makefile
@@ -0,0 +1,6 @@
+run: build
+	./gui-example
+
+build:
+	GO111MODULE="off" go -v get .
+	GO111MODULE="off" go build
diff --git a/cmds/gui-example/demo-window.go b/cmds/gui-example/demo-window.go
new file mode 100644
index 0000000..993900d
--- /dev/null
+++ b/cmds/gui-example/demo-window.go
@@ -0,0 +1,105 @@
+package main
+
+import "log"
+import "reflect"
+
+import "git.wit.org/wit/gui"
+
+import "github.com/davecgh/go-spew/spew"
+
+func demoClick (n *gui.Node) {
+		log.Println("demoClick() Dumping node:")
+		n.Dump()
+}
+
+var username = "jcarr"
+var hostname = "fire"
+
+func newClick (n *gui.Node) {
+	var tmp []string
+	junk := "ssh -v " + username + "@" + hostname
+	log.Println("junk = " , junk)
+	xterm(junk)
+	log.Println("tmp = " , reflect.ValueOf(tmp).Kind())
+	// spew.Dump(tmp)
+}
+
+func addDemoTab(n *gui.Node, title string) {
+	newNode := n.AddTab(title, nil)
+	if (gui.Config.Debug) {
+		newNode.Dump()
+	}
+	newNode.ListChildren(false)
+
+	groupNode1 := newNode.AddGroup("group 1")
+	cbNode := groupNode1.AddComboBox("username", "root", "jcarr", "hugo")
+	cbNode.OnChanged(func () {
+		username = cbNode.GetText()
+	})
+	groupNode1.AddComboBox("demoCombo3", "foo 3", "bar", "stuff")
+
+	groupNode1.Dump()
+
+	butNode1 := groupNode1.AddButton("button1", demoClick)
+	butNode1.Dump()
+
+	butNode2 := groupNode1.AddButton("button2", newClick)
+	butNode2.Dump()
+
+	groupNode2 := newNode.AddGroup("group 2")
+	groupNode2.AddComboBox("demoCombo2", "more 1", "more 2", "more 3")
+
+	gNode := newNode.AddGroup("domU")
+	makeSSHbutton(gNode, "hugo@www",	"www.wit.org")
+	makeSSHbutton(gNode, "check.lab",	"check.lab.wit.org")
+	makeSSHbutton(gNode, "gobuild.lab",	"gobuild.lab.wit.org")
+	makeSSHbutton(gNode, "gobuild2.lab",	"gobuild2.lab.wit.org")
+
+///////////////////////////////  Column DNS  ////////////////////////////////
+	gNode = newNode.AddGroup("dns")
+	makeSSHbutton(gNode, "bind.wit.org",	"bind.wit.org")
+	makeSSHbutton(gNode, "ns1.wit.com",	"ns1.wit.com")
+	makeSSHbutton(gNode, "ns2.wit.com",	"ns2.wit.com")
+	makeSSHbutton(gNode, "coredns",		"coredns.lab.wit.org")
+
+///////////////////////////////  PHYS 530  //////////////////////////////////
+	gNode = newNode.AddGroup("phys 530")
+	// makeXtermButton(gNode, "openwrt",	"SUBDOMAIN",  "ssh -4 -v root@openwrt")
+	gNode.AddButton("openwrt", func (*gui.Node) {
+		stuff := "ssh -4 -v root@openwrt"
+		xterm(stuff)
+	})
+	makeSSHbutton  (gNode, "mirrors",	"mirrors.wit.org")
+	makeSSHbutton  (gNode, "node004",	"node004.lab.wit.org")
+	makeSSHbutton  (gNode, "lenovo-z70",	"lenovo-z70.lab.wit.org")
+
+///////////////////////////////  PHYS 522  //////////////////////////////////
+	gNode = newNode.AddGroup("phys 522")
+	// makeXtermButton(gNode, "openwrt2",	"SUBDOMAIN", "ssh -4 -v root@openwrt2")
+	gNode.AddButton("openwrt2", func (*gui.Node) {
+		stuff := "ssh -4 -v root@openwrt2"
+		xterm(stuff)
+	})
+	makeSSHbutton  (gNode, "fire.lab",	"fire.lab.wit.org")
+	makeSSHbutton  (gNode, "predator",	"predator.lab.wit.org")
+
+///////////////////////////////  FLOAT  /////////////////////////////////////
+	gNode = newNode.AddGroup("float")
+	makeSSHbutton(gNode, "root@asus-n501vw",	"asus-n501vw.lab.wit.org")
+}
+
+func makeSSHbutton (n *gui.Node, name string, hostname string) {
+	bNode := n.AddButton(name, func (*gui.Node) {
+		var tmp []string
+		if (username == "") {
+			username = "root"
+		}
+		junk := "ssh -v " + username + "@" + hostname
+		log.Println("junk = " , junk)
+		log.Println("username = '" + username + "'")
+		xterm(junk)
+		log.Println("tmp = " , reflect.ValueOf(tmp).Kind())
+		spew.Dump(tmp)
+	})
+	bNode.Dump()
+}
diff --git a/cmds/gui-example/main.go b/cmds/gui-example/main.go
new file mode 100644
index 0000000..8eae878
--- /dev/null
+++ b/cmds/gui-example/main.go
@@ -0,0 +1,68 @@
+package main
+
+import (
+	"log"
+	"os"
+	"time"
+
+	"git.wit.org/wit/gui"
+)
+
+// This initializes the first window
+//
+// Then starts a goroutine to demonstrate how to
+// inject things into the GUI
+func main() {
+	log.Println("Starting my Control Panel")
+
+	go gui.Main(initGUI)
+
+	watchGUI()
+}
+
+// This initializes the first window
+func initGUI() {
+	gui.Config.Title = "WIT GUI Window Demo 1"
+	gui.Config.Width = 640
+	gui.Config.Height = 480
+	gui.Config.Exit = myExit
+	node1 := gui.NewWindow()
+	addDemoTab(node1, "A Simple Tab Demo")
+
+	gui.Config.Title = "WIT GUI Window Demo 2"
+	gui.Config.Width = 640
+	gui.Config.Height = 240
+	gui.Config.Exit = myExit
+	node2 := gui.NewWindow()
+	node2.DemoAndlabsUiTab("A Simple andlabs/ui Tab Demo")
+}
+
+// This demonstrates how to properly interact with the GUI
+// You can not involke the GUI from external goroutines in most cases.
+func watchGUI() {
+	var i = 1
+	for {
+		log.Println("Waiting", i, "seconds")
+		i += 1
+		time.Sleep(1 * time.Second)
+		if i == 4 {
+			log.Println("Opening a Debug Window via the gui.Queue()")
+			gui.Config.Width = 800
+			gui.Config.Height = 300
+			gui.Config.Exit = myDebugExit
+			gui.Queue(gui.DebugWindow)
+		}
+	}
+}
+
+func myExit(n *gui.Node) {
+	log.Println()
+	log.Println("Entered myExit() on node.Name =", n.Name)
+	log.Println()
+	os.Exit(0)
+}
+
+func myDebugExit(n *gui.Node) {
+	log.Println("Entered myDebugExit() on node.Name =", n.Name)
+	log.Println("Don't actually os.Exit()")
+}
diff --git a/cmds/gui-example/os.go b/cmds/gui-example/os.go
new file mode 100644
index 0000000..ce5db8d
--- /dev/null
+++ b/cmds/gui-example/os.go
@@ -0,0 +1,99 @@
+package main
+
+import "log"
+import "strings"
+import "os"
+import "os/exec"
+import "io/ioutil"
+import "errors"
+// import "bufio"
+
+// import "github.com/davecgh/go-spew/spew"
+
+/*
+import "time"
+import "runtime"
+import "runtime/debug"
+import "runtime/pprof"
+
+import "git.wit.org/wit/gui"
+import "git.wit.org/wit/shell"
+import "github.com/gobuffalo/packr"
+*/
+
+func runSimpleCommand(s string) {
+	cmd := strings.TrimSpace(s) // this is like 'chomp' in perl
+	cmd  = strings.TrimSuffix(cmd, "\n") // this is like 'chomp' in perl
+        cmdArgs := strings.Fields(cmd)
+	runLinuxCommand(cmdArgs)
+}
+
+var geom string = "120x30+500+500"
+
+func xterm(cmd string) {
+	var tmp []string
+	var argsXterm = []string{"nohup", "xterm", "-geometry", geom}
+	tmp = append(argsXterm, "-hold", "-e", cmd)
+	log.Println("xterm cmd=", cmd)
+	go runCommand(tmp)
+}
+
+func runCommand(cmdArgs []string) {
+	log.Println("runCommand() START", cmdArgs)
+	process := exec.Command(cmdArgs[0], cmdArgs[1:len(cmdArgs)]...)
+	// process := exec.Command("xterm", "-e", "ping localhost")
+	log.Println("runCommand() process.Start()")
+	process.Start()
+	log.Println("runCommand() process.Wait()")
+	err := process.Wait()
+	lookupError(err)
+	log.Println("runCommand() NEED TO CHECK THE TIME HERE TO SEE IF THIS WORKED")
+	log.Println("runCommand() OTHERWISE INFORM THE USER")
+	log.Println("runCommand() END", cmdArgs)
+}
+
+func lookupError(err error) {
+	var (
+		ee *exec.ExitError
+		pe *os.PathError
+	)
+
+	if errors.As(err, &ee) {
+		log.Println("ran, but non-zero exit code =", ee.ExitCode()) // ran, but non-zero exit code
+	} else if errors.As(err, &pe) {
+		log.Printf("os.PathError = %v", pe) // "no such file ...", "permission denied" etc.
+	} else if err != nil {
+		log.Printf("something really bad happened general err = %v", err) // something really bad happened!
+		if exitError, ok := err.(*exec.ExitError); ok {
+			log.Printf("exitError.ExitCode() is %d\n", exitError.ExitCode())
+		}
+	} else {
+		log.Println("success! // ran without error (exit code zero)")
+	}
+}
+
+func runLinuxCommand(cmdArgs []string) (string, error) {
+	process := exec.Command(cmdArgs[0], cmdArgs[1:len(cmdArgs)]...)
+
+	process.Stdin = os.Stdin
+	process.Stderr = os.Stderr
+
+	stdOut, err := process.StdoutPipe()
+	if err != nil {
+		return "", err
+	}
+
+	if err := process.Start(); err != nil {
+		return "", err
+	}
+
+	bytes, err := ioutil.ReadAll(stdOut)
+	if err != nil {
+		return "", err
+	}
+	err = process.Wait()
+	lookupError(err)
+
+	log.Println(string(bytes))
+	return string(bytes), err
+}