Implement delete for Input

src/components/input.go

@@ -71,19 +71,26 @@ func (i *Input) SendMessage(svc *service.SlackService, channel string, message s
 // Insert will insert a given key at the place of the current CursorPosition
 func (i *Input) Insert(key string) {
 	if len(i.Par.Text) < i.Par.InnerBounds().Dx()-1 {
-		i.Par.Text = i.Par.Text[0:i.CursorPosition] + key + i.Par.Text[i.CursorPosition:len(i.Par.Text)]
+		i.Par.Text = i.Par.Text[0:i.CursorPosition] + key + i.Par.Text[i.CursorPosition:]
 		i.MoveCursorRight()
 	}
 }
 
-// Remove will remove a character at the place of the current CursorPosition
-func (i *Input) Remove() {
+// Backspace will remove a character in front of the CursorPosition
+func (i *Input) Backspace() {
 	if i.CursorPosition > 0 {
-		i.Par.Text = i.Par.Text[0:i.CursorPosition-1] + i.Par.Text[i.CursorPosition:len(i.Par.Text)]
+		i.Par.Text = i.Par.Text[0:i.CursorPosition-1] + i.Par.Text[i.CursorPosition:]
 		i.MoveCursorLeft()
 	}
 }
 
+// Delete will remove a character at the CursorPosition
+func (i *Input) Delete() {
+	if i.CursorPosition < len(i.Par.Text) {
+		i.Par.Text = i.Par.Text[0:i.CursorPosition] + i.Par.Text[i.CursorPosition+1:]
+	}
+}
+
 // MoveCursorRight will increase the current CursorPosition with 1
 func (i *Input) MoveCursorRight() {
 	if i.CursorPosition < len(i.Par.Text) {

src/handlers/event.go

@@ -45,6 +45,8 @@ func anyKeyHandler(ctx *context.AppContext) func(termui.Event) {
 				actionBackSpace(ctx.View)
 			case "C-8":
 				actionBackSpace(ctx.View)
+			case "<delete>":
+				actionDelete(ctx.View)
 			case "<right>":
 				actionMoveCursorRight(ctx.View)
 			case "<left>":
@@ -112,7 +114,12 @@ func actionInput(view *views.View, key string) {
 }
 
 func actionBackSpace(view *views.View) {
-	view.Input.Remove()
+	view.Input.Backspace()
+	termui.Render(view.Input)
+}
+
+func actionDelete(view *views.View) {
+	view.Input.Delete()
 	termui.Render(view.Input)
 }