Implement a early AddButton() via a golang pluginv0.4.5

    pass a name to gocui.AddButton()
    cleaner plugin usage
    add the start to golang plugin
    plugin stuff in a single file
    added a button correctly
    andlabs/ui added a button via plugin to gocli
  	  hot diggity!
    trying to invoke a gocli plugin function from the andlabs ui
    load the plugin
    hide more debugging output
    turn off all output

Signed-off-by: Jeff Carr <[email protected]>

3 files changed, 91 insertions, 6 deletions

diff --git a/cmds/buttonAsPlugin/Makefile b/cmds/buttonAsPlugin/Makefile
index 431d956..d9a67bf 100644
--- a/cmds/buttonAsPlugin/Makefile
+++ b/cmds/buttonAsPlugin/Makefile
@@ -1,5 +1,5 @@
 run: build
-	./buttonAsPlugin
+	./buttonAsPlugin >/tmp/buttonAsPlugin.log 2>&1
 
 build-release:
 	go get -v -u -x .
diff --git a/cmds/buttonAsPlugin/log.go b/cmds/buttonAsPlugin/log.go
new file mode 100644
index 0000000..642ff7b
--- /dev/null
+++ b/cmds/buttonAsPlugin/log.go
@@ -0,0 +1,64 @@
+// This creates a simple hello world window
+package main
+
+import 	(
+	"log"
+	"fmt"
+	"os"
+	"io"
+	"time"
+	"bufio"
+	arg "github.com/alexflint/go-arg"
+)
+
+
+var args struct {
+	Foo string
+	Bar bool
+	User string `arg:"env:USER"`
+	Demo bool `help:"run a demo"`
+}
+
+var f1 *os.File
+var f2 *os.File
+var err error
+
+func init() {
+	arg.MustParse(&args)
+	fmt.Println(args.Foo, args.Bar, args.User)
+
+	f1, err = os.OpenFile("/tmp/guilogfile", os.O_RDWR | os.O_CREATE | os.O_APPEND, 0666)
+	if err != nil {
+		log.Fatalf("error opening file: %v", err)
+	}
+	// hmm. is there a trick here or must this be in main()
+	// defer f.Close()
+
+	log.SetOutput(f1)
+	log.Println("This is a test log entry")
+}
+
+func captureSTDOUT() {
+	f2, _ = os.OpenFile("/tmp/my.log", os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0664)
+	multiWriter := io.MultiWriter(os.Stderr, f2)
+	rd, wr, err := os.Pipe()
+	if err != nil {
+	    os.Exit(1)
+	}
+
+	// overwrite os.Stdout
+	os.Stderr = wr
+
+	go func() {
+	    scanner := bufio.NewScanner(rd)
+	    for scanner.Scan() {
+	        stdoutLine := scanner.Text()
+	        multiWriter.Write([]byte(stdoutLine + "\n"))
+	    }
+	}()
+
+	fmt.Println("foobar")
+
+	// hacky sleep to ensure the go routine can write before program exits
+	time.Sleep(time.Second)
+}
diff --git a/cmds/buttonAsPlugin/main.go b/cmds/buttonAsPlugin/main.go
index 1c2eeaf..e26c75e 100644
--- a/cmds/buttonAsPlugin/main.go
+++ b/cmds/buttonAsPlugin/main.go
@@ -7,6 +7,12 @@ import 	(
 )
 
 func main() {
+	// go loadPlugin(plugHello, "../../toolkit/hello.so")
+
+	// this doesn't seem to work
+	captureSTDOUT()
+
+	// go loadPlugin("../../toolkit/gocli.so")
 	gui.Main(buttonWindow)
 }
 
@@ -17,9 +23,6 @@ func buttonWindow() {
 	gui.Config.Width = 640
 	gui.Config.Height = 480
 
-//	gui.Config.Exit = gui.StandardClose
-//	gui.SetDebug(true)
-
 	w = gui.NewWindow()
 	g = w.NewGroup("buttonGroup")
 
@@ -27,7 +30,25 @@ func buttonWindow() {
 		log.Println("world")
 	})
 
-	g.NewButton("foo", func () {
-		log.Println("bar")
+	/*
+	g.NewButton("LoadPlugin()", func () {
+		log.Println("world")
+		gui.LoadPlugin("../../toolkit/gocli.so")
+	})
+	*/
+
+	g.NewButton("RunGreet()", func () {
+		log.Println("world")
+		go gui.RunGreet()
+	})
+
+	g.NewButton("gui.LookupJcarrButton()", func () {
+		log.Println("gui.LookupJcarrButton()")
+		gui.LookupJcarrButton()
+	})
+
+	g.NewButton("gui.GocuiAddButton()", func () {
+		log.Println("gui.GocuiAddButton()")
+		gui.GocuiAddButton("new foobar")
 	})
 }