Publicate/src/Window.vala

using Adw;
using Gtk;

namespace Publicate {

    public class ViewerWindow : Adw.ApplicationWindow {

        private Stack stack;
        private StartupMenu startup_menu;
        public PpubEditor editor {get; set;}
        public Ppub.Publication publication {get; set;}

        private SimpleAction extract_action;

        public ViewerWindow(Adw.Application app) {
            application = app;
            stack = new Stack();
            startup_menu = new StartupMenu(this);
            editor = new PpubEditor(this);

            default_height = 600;
            default_width = 800;

            content = stack;
            stack.add_child(startup_menu);
            stack.add_child(editor);
            stack.transition_type = StackTransitionType.CROSSFADE;

            var save_action = new SimpleAction("save", null);
            save_action.activate.connect(() => editor.save_tab.begin());
            add_action(save_action);
            add_binding_action(Gdk.Key.s, Gdk.ModifierType.CONTROL_MASK, "win.save", "Save current tab");
        }

        public async void open_ppub() throws Error {

            var dialog = new FileDialog();
            var filter = new FileFilter();
            var filters = new GLib.ListStore(Type.OBJECT);
            filters.append(filter);
            filter.add_pattern("*.ppub");
            filter.name = "Portable Publications";
            dialog.filters = filters;
            var file = yield dialog.open(this, null);

            if(file == null) {
                return;
            }
            
            yield load_ppub(file);

        }

        public async void load_ppub(File file) {
            stack.visible_child = editor;
            yield editor.load_ppub(file);
        }


    }

}