cmd/ui.go

@@ -0,0 +1,108 @@
+package cmd
+
+import (
+	"fmt"
+	"github.com/jroimartin/gocui"
+	"log"
+)
+
+func ui() {
+	g, err := gocui.NewGui(gocui.OutputNormal)
+	if err != nil {
+		log.Panicln(err)
+	}
+	defer g.Close()
+	g.SetManagerFunc(layout)
+	g.Mouse = true
+	g.Cursor = true
+	initKeybindings(g)
+
+	if err := g.MainLoop(); err != nil && err != gocui.ErrQuit {
+		log.Panicln(err)
+	}
+}
+
+func quit(*gocui.Gui, *gocui.View) error {
+	return gocui.ErrQuit
+}
+
+func sendmsg(g *gocui.Gui, v *gocui.View) error {
+	chatbox, err := g.View("chatbox")
+	textarea, err := g.View("textarea")
+	if err != nil {
+		log.Panicln(err)
+	}
+	message := textarea.Buffer()
+	msg := string(message)
+	if msg == "" {
+		return nil
+	}
+
+	fmt.Fprint(chatbox, msg)
+	textarea.Clear()
+	textarea.SetCursor(0, 0)
+	return nil
+}
+
+func initKeybindings(g *gocui.Gui) error {
+	if err := g.SetKeybinding("", gocui.KeyCtrlC, gocui.ModNone, quit); err != nil {
+		log.Panicln(err)
+	}
+
+	if err := g.SetKeybinding("button", gocui.MouseLeft, gocui.ModNone, sendmsg); err != nil {
+		log.Panicln(err)
+	}
+
+	if err := g.SetKeybinding("textarea", gocui.KeyEnter, gocui.ModNone, sendmsg); err != nil {
+		log.Panicln(err)
+	}
+	return nil
+}
+
+func layout(g *gocui.Gui) error {
+	maxX, maxY := g.Size()
+
+	if chatbox, err := g.SetView("chatbox", 2, 1, maxX/2+40, maxY-6); err != nil {
+		if err != gocui.ErrUnknownView {
+			return err
+		}
+		chatbox.Title = "Chat Box"
+		fmt.Fprintln(chatbox, "Hello world!")
+	}
+
+	if button, err := g.SetView("button", maxX/2+32, maxY-4, maxX/2+40, maxY-2); err != nil {
+		if err != gocui.ErrUnknownView {
+			return err
+		}
+		//button.BgColor = gocui.ColorRed
+		button.Wrap = true
+		button.Frame = true
+		fmt.Fprintln(button, "Send it")
+	}
+
+	if textarea, err := g.SetView("textarea", 2, maxY-4, maxX/2+28, maxY-2); err != nil {
+		if err != gocui.ErrUnknownView {
+			return err
+		}
+		if _, err := g.SetCurrentView("textarea"); err != nil {
+			log.Panicln(err)
+		}
+		textarea.Title = "Send message"
+		textarea.Wrap = true
+		textarea.Editable = true
+	}
+
+	if currentUsers, err := g.SetView("currentUsers", maxX/2+42, 1, maxX-6, maxY-6); err != nil {
+		if err != gocui.ErrUnknownView {
+			return err
+		}
+		currentUsers.Title = "Connected users"
+	}
+
+	// TODO: Add "Users currently online" view
+	// if currentUsers, err := g.SetView("currentUsers", maxX/2+34, 1, maxX/2+40, maxY/2+11); err != nil {
+	//
+	// }
+
+	return nil
+}