started the bg server stuff

bg/background.go

@@ -0,0 +1,30 @@
+package bg
+
+import (
+	"github.com/jordanorelli/dws/events"
+)
+
+func Run(out chan events.BackgroundEvent, in chan events.UserEvent) {
+	bg := &background{
+		in:     in,
+		out:    out,
+		server: newServer(),
+	}
+	go bg.listen()
+	bg.run()
+}
+
+type background struct {
+	in  chan events.UserEvent
+	out chan events.BackgroundEvent
+	*server
+}
+
+func (bg *background) run() {
+	for e := range bg.in {
+		switch v := e.(type) {
+		case events.UserSelectedDirectory:
+			bg.setRoot(v.Path)
+		}
+	}
+}

bg/server.go

@@ -0,0 +1,42 @@
+package bg
+
+import (
+	"fmt"
+	"log"
+	"net/http"
+)
+
+type server struct {
+	port int
+	root string
+}
+
+func newServer() *server {
+	return &server{port: 8000}
+}
+
+func (s *server) listen() {
+	addr := fmt.Sprintf("0.0.0.0:%d", s.port)
+	log.Printf("server listening on addr: %s\n", addr)
+	if err := http.ListenAndServe(addr, s); err != nil {
+		panic(err)
+	}
+}
+
+func (s *server) setRoot(path string) {
+	log.Printf("server setting root to %s\n", path)
+	s.root = path
+}
+
+func (s *server) ServeHTTP(w http.ResponseWriter, r *http.Request) {
+	if s.root == "" {
+		writeNotInitializedResponse(w)
+		return
+	}
+	fmt.Fprintf(w, "root: %s", s.root)
+}
+
+func writeNotInitializedResponse(w http.ResponseWriter) {
+	w.WriteHeader(500)
+	fmt.Fprintln(w, "no root directory selected")
+}

events/background_event.go

@@ -0,0 +1,10 @@
+package events
+
+type BackgroundEvent interface {
+	Event
+	isBackgroundEvent()
+}
+
+type backgroundEvent struct{ event }
+
+func (e backgroundEvent) isBackgroundEvent() {}

events/event.go

@@ -0,0 +1,9 @@
+package events
+
+type Event interface {
+	isEvent()
+}
+
+type event struct{}
+
+func (e event) isEvent() {}

events/user_event.go

@@ -0,0 +1,15 @@
+package events
+
+type UserEvent interface {
+	Event
+	isUserEvent()
+}
+
+type userEvent struct{ event }
+
+func (e userEvent) isUserEvent() {}
+
+type UserSelectedDirectory struct {
+	Path string
+	userEvent
+}

main.go

@@ -4,8 +4,11 @@ import (
 	"fmt"
 	"log"
 	"os"
+	"runtime"
 	"strings"
 
+	"github.com/jordanorelli/dws/bg"
+	"github.com/jordanorelli/dws/events"
 	"github.com/jordanorelli/dws/ui"
 )
 
@@ -22,18 +25,17 @@ func exit(status int, t string, args ...interface{}) {
 }
 
 func main() {
+	runtime.LockOSThread()
+
 	log.Println("Creating new Desktop UI")
 	desktop := ui.Desktop()
 
-	c := make(chan ui.Event, 1)
-	go func() {
-		for e := range c {
-			log.Printf("UI Event: %v\n", e)
-		}
-	}()
+	uiEvents := make(chan events.UserEvent, 1)
+	bgEvents := make(chan events.BackgroundEvent, 1)
+
+	go bg.Run(bgEvents, uiEvents)
 
-	log.Println("Running Desktop UI")
-	if err := desktop.Run(c); err != nil {
+	if err := desktop.Run(uiEvents, bgEvents); err != nil {
 		exit(1, "UI Error: %v", err)
 	}
 }

ui/MainViewController.m

@@ -6,6 +6,7 @@
 
 @property (nonatomic, strong) NSOpenPanel *selectDirectoryPanel;
 @property (nonatomic, strong) NSButton *selectDirectoryButton;
+@property (nonatomic, strong) NSTextField *selectedDirectoryText;
 
 @end
 
@@ -36,7 +37,11 @@
     [self.selectDirectoryButton setTranslatesAutoresizingMaskIntoConstraints:NO];
     [self.view addSubview:self.selectDirectoryButton];
 
-    // setup button constraints
+    // create label to show selected directory
+	self.selectedDirectoryText = [NSTextField labelWithString:@"(none)"];
+	[self.view addSubview:self.selectedDirectoryText];
+
+    // setup constraints
     [self.selectDirectoryButton.rightAnchor
         constraintEqualToAnchor:self.view.rightAnchor
                        constant:-8.0].active = YES;
@@ -53,8 +58,8 @@
             return;
         }
         NSURL *selected = [[self.selectDirectoryPanel URLs] objectAtIndex:0];
-        NSString *path = [selected path];
-        selectDirectory((GoString){path.UTF8String, path.length});
+        char *path = (char *)[[selected path] UTF8String];
+		selectDirectory(path);
     }];
 }
 

ui/ui.go

@@ -1,18 +1,9 @@
 package ui
 
-type UI interface {
-	Run(chan Event) error
-}
-
-type Event interface {
-	isUIEvent()
-}
+import (
+	"github.com/jordanorelli/dws/events"
+)
 
-type event struct{}
-
-func (e event) isUIEvent() {}
-
-type SelectDirectoryEvent struct {
-	Path string
-	event
+type UI interface {
+	Run(chan events.UserEvent, chan events.BackgroundEvent) error
 }

ui/ui_darwin.go

@@ -2,7 +2,8 @@ package ui
 
 import (
 	"log"
-	"runtime"
+
+	"github.com/jordanorelli/dws/events"
 )
 
 /*
@@ -19,24 +20,27 @@ func Desktop() UI {
 		return desktopUI
 	}
 
-	log.Println("Creating new cocoaUI")
-	runtime.LockOSThread()
+	log.Println("Creating new Cocoa UI")
 	C.Initialize()
 	desktopUI = new(cocoaUI)
 	return desktopUI
 }
 
 type cocoaUI struct {
-	out chan Event
+	in  chan events.BackgroundEvent
+	out chan events.UserEvent
 }
 
-func (ui *cocoaUI) Run(out chan Event) error {
+func (ui *cocoaUI) Run(out chan events.UserEvent, in chan events.BackgroundEvent) error {
+	log.Println("Running Desktop UI")
+	ui.in = in
 	ui.out = out
 	C.Run()
 	return nil
 }
 
 //export selectDirectory
-func selectDirectory(path string) {
-	desktopUI.out <- SelectDirectoryEvent{Path: path}
+func selectDirectory(cpath *C.char) {
+	path := C.GoString(cpath)
+	desktopUI.out <- events.UserSelectedDirectory{Path: path}
 }