extract key bindings to separate file

Signed-off-by: Jakub Sokołowski <jakub@status.im>

keys.go

@@ -0,0 +1,45 @@
+package main
+
+import (
+	"fmt"
+	"github.com/jroimartin/gocui"
+)
+
+type Binding struct {
+	Key     gocui.Key
+	Mod     gocui.Modifier
+	Handler func(g *gocui.Gui, v *gocui.View) error
+}
+
+var bindings = [...]Binding{
+	Binding{gocui.KeyCtrlC, gocui.ModNone, quit},
+	Binding{gocui.KeyArrowUp, gocui.ModNone, HandlerCursorUp},
+	Binding{gocui.KeyArrowDown, gocui.ModNone, HandlerCursorDown},
+}
+
+func keybindings(g *gocui.Gui) error {
+	for _, b := range bindings {
+		if err := g.SetKeybinding("", b.Key, b.Mod, b.Handler); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func HandlerCursorUp(g *gocui.Gui, v *gocui.View) error {
+	fmt.Println("UP")
+	return nil
+}
+
+func HandlerCursorDown(g *gocui.Gui, v *gocui.View) error {
+	if v != nil {
+		cx, cy := v.Cursor()
+		if err := v.SetCursor(cx, cy+1); err != nil {
+			ox, oy := v.Origin()
+			if err := v.SetOrigin(ox, oy+1); err != nil {
+				return err
+			}
+		}
+	}
+	return nil
+}

main.go

@@ -12,7 +12,7 @@ type rcpResp map[string]interface{}
 
 const host = "127.0.0.1"
 const port = 8545
-const interval = 3
+const interval = 5
 
 var threadDone = make(chan struct{})
 
@@ -23,6 +23,9 @@ func main() {
 	}
 	defer g.Close()
 
+	g.Highlight = true
+	g.Cursor = true
+
 	g.SetManagerFunc(layout)
 
 	if err := keybindings(g); err != nil {
@@ -73,19 +76,14 @@ func writePeers(g *gocui.Gui, peers []Peer) {
 	})
 }
 
-func keybindings(g *gocui.Gui) error {
-	if err := g.SetKeybinding("", gocui.KeyCtrlC, gocui.ModNone, quit); err != nil {
-		return err
-	}
-	return nil
-}
-
 func layout(g *gocui.Gui) error {
 	maxX, maxY := g.Size()
 	if v, err := g.SetView("main", 0, 0, maxX-1, maxY-1); err != nil {
 		if err != gocui.ErrUnknownView {
 			return err
 		}
+		v.Highlight = true
+		v.SetCursor(0, 0)
 		fmt.Fprintln(v, "Loading peers...")
 	}
 	return nil