improve prompt cancellation

The cancel button was overlaying the submit button preventing the submission of a prompt.
Distinguish between cancelable and mandatory prompt.
Only^ allow cancelable prompts to be removed.

Fixes: 37acd982

1 files changed, 8 insertions, 2 deletions

diff --git a/go/ui/prompt.go b/go/ui/prompt.go
index a7f2ce07..a289ae13 100644
--- a/go/ui/prompt.go
+++ b/go/ui/prompt.go
@@ -17,6 +17,7 @@ type Prompt struct {
 	y, width   int
 	action     game.Action
 	components []Widget
+	cancelable bool
 }
 
 func NewPrompt(y, width int, action game.Action, promptText string) *Prompt {
@@ -30,10 +31,15 @@ func NewPrompt(y, width int, action game.Action, promptText string) *Prompt {
 	return p
 }
 
-func (p *Prompt) Action() game.Action {
-	return p.action
+func NewCancelablePrompt(y, width int, action game.Action, promptText string) *Prompt {
+	p := NewPrompt(y, width, action, promptText)
+	p.cancelable = true
+	return p
 }
 
+func (p *Prompt) Cancelable() bool    { return p.cancelable }
+func (p *Prompt) Action() game.Action { return p.action }
+
 func (p *Prompt) Add(obj interface{}) error {
 	if handCard, ok := obj.(HandCard); ok {
 		obj = handCard.C