Add shared internal UI toolkit for both readers

interaction/grid.go

@@ -0,0 +1,39 @@
+// Copyright (c) 2026 Storm Dragon
+// Authors: Storm Dragon, Angus Kola
+// SPDX-License-Identifier: GPL-3.0-or-later
+package interaction
+
+import (
+	"errors"
+	ui "git.stormux.org/storm/screenreader-common/internalui"
+)
+
+type GridTab struct {
+	ID, Label string
+	Items     []Item
+}
+
+func NewGridSession(title string, tabs []GridTab, columns int, checkbox Element) (*Session, error) {
+	if title == "" || len(tabs) == 0 || columns < 1 || columns > 64 || checkbox.Kind != CheckBox || checkbox.ID == "" || checkbox.Label == "" {
+		return nil, errors.New("invalid tabbed grid")
+	}
+	form := ui.Form{Type: ui.TabForm, Title: title, Detailed: true}
+	for _, tab := range tabs {
+		choices := make([]ui.Choice, 0, len(tab.Items))
+		for _, item := range tab.Items {
+			if item.ID == "" {
+				return nil, errors.New("invalid grid item")
+			}
+			choices = append(choices, ui.Choice{ID: item.ID, Label: item.Label, Disabled: item.Disabled, Literal: true})
+		}
+		form.Tabs = append(form.Tabs, ui.Tab{ID: tab.ID, Label: tab.Label, Controls: []ui.Control{
+			{ID: "grid", Label: "Grid", Kind: ui.Grid, Choices: choices, Columns: columns, Action: "select-grid-item"},
+			{ID: checkbox.ID, Label: checkbox.Label, Kind: ui.CheckBox, Checked: checkbox.Checked},
+		}})
+	}
+	core, err := ui.NewSession(form, ui.Messages{})
+	if err != nil {
+		return nil, err
+	}
+	return &Session{core: core, title: title, grid: true, checkbox: checkbox.ID}, nil
+}