Check and radio lists, see #34.

list.go

@@ -3,7 +3,7 @@ package zenity
 // List displays the list dialog.
 //
 // Valid options: Title, Width, Height, OKLabel, CancelLabel, ExtraButton,
-// WindowIcon, Attach, Modal, DefaultItems, DisallowEmpty.
+// WindowIcon, Attach, Modal, RadioList, DefaultItems, DisallowEmpty.
 //
 // May return: ErrCanceled, ErrExtraButton, ErrUnsupported.
 func List(text string, items []string, options ...Option) (string, error) {
@@ -20,7 +20,7 @@ func ListItems(text string, items ...string) (string, error) {
 // ListMultiple displays the list dialog, allowing multiple items to be selected.
 //
 // Valid options: Title, Width, Height, OKLabel, CancelLabel, ExtraButton,
-// WindowIcon, Attach, Modal, DefaultItems, DisallowEmpty.
+// WindowIcon, Attach, Modal, CheckList, DefaultItems, DisallowEmpty.
 //
 // May return: ErrCanceled, ErrExtraButton, ErrUnsupported.
 func ListMultiple(text string, items []string, options ...Option) ([]string, error) {
@@ -34,6 +34,24 @@ func ListMultipleItems(text string, items ...string) ([]string, error) {
 	return ListMultiple(text, items)
 }
 
+// CheckList returns an Option to show check boxes (Unix only).
+func CheckList() Option {
+	return funcOption(func(o *options) { o.listKind = checkListKind })
+}
+
+// RadioList returns an Option to show radio boxes (Unix only).
+func RadioList() Option {
+	return funcOption(func(o *options) { o.listKind = radioListKind })
+}
+
+type listKind int
+
+const (
+	basicListKind listKind = iota
+	checkListKind
+	radioListKind
+)
+
 // DefaultItems returns an Option to set the items to initially select (macOS only).
 func DefaultItems(items ...string) Option {
 	return funcOption(func(o *options) { o.defaultItems = items })

list_unix.go

@@ -5,24 +5,40 @@ package zenity
 import "github.com/ncruces/zenity/internal/zenutil"
 
 func list(text string, items []string, opts options) (string, error) {
-	args := []string{"--list", "--column=", "--hide-header", "--text", text}
+	args := []string{"--list", "--hide-header", "--text", text}
 	args = appendGeneral(args, opts)
 	args = appendButtons(args, opts)
 	args = appendWidthHeight(args, opts)
 	args = appendWindowIcon(args, opts)
+	if opts.listKind == radioListKind {
+		args = append(args, "--radiolist", "--column=", "--column=")
+		for _, i := range items {
+			args = append(args, i, i)
+		}
+	} else {
+		args = append(args, "--column=")
 		args = append(args, items...)
+	}
 
 	out, err := zenutil.Run(opts.ctx, args)
 	return strResult(opts, out, err)
 }
 
 func listMultiple(text string, items []string, opts options) ([]string, error) {
-	args := []string{"--list", "--column=", "--hide-header", "--text", text, "--multiple", "--separator", zenutil.Separator}
+	args := []string{"--list", "--hide-header", "--text", text, "--multiple", "--separator", zenutil.Separator}
 	args = appendGeneral(args, opts)
 	args = appendButtons(args, opts)
 	args = appendWidthHeight(args, opts)
 	args = appendWindowIcon(args, opts)
+	if opts.listKind == checkListKind {
+		args = append(args, "--checklist", "--column=", "--column=")
+		for _, i := range items {
+			args = append(args, i, i)
+		}
+	} else {
+		args = append(args, "--column=")
 		args = append(args, items...)
+	}
 
 	out, err := zenutil.Run(opts.ctx, args)
 	return lstResult(opts, out, err)

zenity.go

@@ -57,6 +57,7 @@ type options struct {
 	username  bool
 
 	// List options
+	listKind      listKind
 	disallowEmpty bool
 	defaultItems  []string