Remove a stack by pressing Ctrl+r on the stack list screen

app/stack_events.go

@@ -1,7 +1,10 @@
 package app
 
 import (
+	"fmt"
+
 	"github.com/moncho/dry/appui"
+	"github.com/moncho/dry/ui"
 	termbox "github.com/nsf/termbox-go"
 )
 
@@ -36,7 +39,37 @@ func (h *stacksScreenEventHandler) handle(event termbox.Event) {
 			return refreshScreen()
 		}
 		h.widget().OnEvent(showTasks)
-
+	case termbox.KeyCtrlR: //remove stack
+		rw := appui.NewPrompt("The selected stack will be removed. Do you want to proceed? y/N")
+		h.setForwardEvents(true)
+		handled = true
+		h.dry.widgetRegistry.add(rw)
+		go func() {
+			events := ui.EventSource{
+				Events: h.eventChan,
+				EventHandledCallback: func(e termbox.Event) error {
+					return refreshScreen()
+				},
+			}
+			rw.OnFocus(events)
+			h.dry.widgetRegistry.remove(rw)
+			confirmation, canceled := rw.Text()
+			h.setForwardEvents(false)
+			if canceled || (confirmation != "y" && confirmation != "Y") {
+				return
+			}
+			removeStack := func(stack string) error {
+				err := h.dry.dockerDaemon.StackRemove(stack)
+				if err == nil {
+					h.dry.appmessage(fmt.Sprintf("Stack %s removed", stack))
+				}
+				refreshScreen()
+				return err
+			}
+			if err := h.widget().OnEvent(removeStack); err != nil {
+				h.dry.appmessage("There was an error removing the stack: " + err.Error())
+			}
+		}()
 	}
 	if !handled {
 		switch event.Ch {