feat:(textual) Add bool value renderer (#15863)

Co-authored-by: Simon Warta <2603011+webmaster128@users.noreply.github.com>

docs/architecture/adr-050-sign-mode-textual-annex1.md

@@ -320,6 +320,10 @@ TestData object
 > Signer: cosmos1abc
 ```
 
+### bool
+
+Boolean values are rendered as `True` or `False`.
+
 ### [ABANDONED] Custom `msg_title` instead of Msg `type_url`
 
 _This paragraph is in the Annex for informational purposes only, and will be removed in a next update of the ADR._

x/tx/signing/textual/bool.go

@@ -0,0 +1,37 @@
+package textual
+
+import (
+	"context"
+	"fmt"
+
+	"google.golang.org/protobuf/reflect/protoreflect"
+)
+
+type boolValueRenderer struct{}
+
+// NewBoolValueRenderer returns a ValueRenderer for protocol buffer bool values.
+// It renders the boolean as YES or NO.
+func NewBoolValueRenderer() ValueRenderer {
+	return boolValueRenderer{}
+}
+
+func (sr boolValueRenderer) Format(_ context.Context, v protoreflect.Value) ([]Screen, error) {
+	str := "False"
+	if v.Bool() {
+		str = "True"
+	}
+	return []Screen{{Content: str}}, nil
+}
+
+func (sr boolValueRenderer) Parse(_ context.Context, screens []Screen) (protoreflect.Value, error) {
+	if len(screens) != 1 {
+		return protoreflect.Value{}, fmt.Errorf("expected single screen: %v", screens)
+	}
+
+	res := false
+	if screens[0].Content == "True" {
+		res = true
+	}
+
+	return protoreflect.ValueOfBool(res), nil
+}

x/tx/signing/textual/bool_test.go

@@ -0,0 +1,31 @@
+package textual_test
+
+import (
+	"context"
+	"testing"
+
+	"cosmossdk.io/x/tx/signing/textual"
+	"github.com/stretchr/testify/require"
+	"google.golang.org/protobuf/reflect/protoreflect"
+)
+
+func TestBool(t *testing.T) {
+	// test true
+	rend := textual.NewBoolValueRenderer()
+	screens, err := rend.Format(context.Background(), protoreflect.ValueOfBool(true))
+	require.NoError(t, err)
+	require.Equal(t, 1, len(screens))
+	require.Equal(t, "True", screens[0].Content)
+	val, err := rend.Parse(context.Background(), screens)
+	require.NoError(t, err)
+	require.Equal(t, true, val.Bool())
+
+	// test false
+	screens, err = rend.Format(context.Background(), protoreflect.ValueOfBool(false))
+	require.NoError(t, err)
+	require.Equal(t, 1, len(screens))
+	require.Equal(t, "False", screens[0].Content)
+	val, err = rend.Parse(context.Background(), screens)
+	require.NoError(t, err)
+	require.Equal(t, false, val.Bool())
+}

x/tx/signing/textual/handler.go

@@ -138,6 +138,8 @@ func (r *SignModeHandler) GetFieldValueRenderer(fd protoreflect.FieldDescriptor)
 			return nil, fmt.Errorf("value renderers cannot format value of type map")
 		}
 		return NewMessageValueRenderer(r, md), nil
+	case fd.Kind() == protoreflect.BoolKind:
+		return NewBoolValueRenderer(), nil
 
 	default:
 		return nil, fmt.Errorf("value renderers cannot format value of type %s", fd.Kind())