# and late plugin initializations
        [callback(self) for callback in self.hooks["init"]]

        # display current open channel/notebook tab
        gui_startup(18/20.0)
        self.current_channel = self.current_channel_gtk()
        try: self.channel().first_show()
        except: __print__(dbg.INIT, "main.__init__: current_channel.first_show() initialization error")

  
        # bind gtk/glade event names to functions
        gui_startup(19.75/20.0)
        self.connect_signals({
            "gtk_main_quit" : self.gtk_main_quit,                # close window
            # treeviews / notebook

    def current_channel_gtk(self):
        return self.channel_names[self.notebook_channels.get_current_page()]
    
        
    # Notebook tab has been clicked (receives numeric page_num), but *NOT* yet changed (visually).
    def channel_switch(self, notebook, page, page_num=0, *args):
        self.current_channel = notebook.get_menu_label_text(notebook.get_nth_page(page_num))
        __print__(dbg.UI, "main.channel_switch() :=", self.current_channel)
        self.update_title()
        # if first selected, load current category
        # (run in thread, to make it look speedy on first startup)
        self.thread( self.channel().first_show )

    # Invoked from the menu instead, uses module name instead of numeric tab id
    def channel_switch_by_name(self, name):

        url = self.selected("homepage")
        if url and len(url): action.browser(url)
        else: self.status("No homepage URL present.")

    # Browse to channel homepage (double click on notebook tab)
    def on_homepage_channel_clicked(self, widget, event=2):
        if event == 2 or event.type == gtk.gdk._2BUTTON_PRESS:
            __print__(dbg.UI, "dblclick")
            url = self.channel().meta.get("url", "https://duckduckgo.com/?q=" + self.channel().module)
            action.browser(url)

    # Reload stream list in current channel-category
    def on_reload_clicked(self, widget=None, reload=1):
        __print__(dbg.UI, "on_reload_clicked()", "reload=", reload, "current_channel=", self.current_channel, "c=", self.channels[self.current_channel], "cat=", self.channel().current)
        category = self.channel().current
        self.thread(
                       #@TODO: should get a wrapper, for HTTP errors, and optionalize bookamrks
            lambda: (  self.channel().load(category,reload), reload and self.bookmarks.heuristic_update(self.current_channel,category)  )
        )

    # Thread a function, add to worker pool (for utilizing stop button)
    def thread(self, target, *args):
        thread = Thread(target=target, args=args)
        thread.start()
        self.working.append(thread)


    # Click in category list
    def on_category_clicked(self, widget, event, *more):
        category = self.channel().currentcat()
        __print__(dbg.UI, "on_category_clicked", category, self.current_channel)
        self.on_reload_clicked(None, reload=0)
        pass

    # Add current selection to bookmark store
    def bookmark(self, widget):
        self.bookmarks.add(self.row())
        self.channel().row_icon(gtk.STOCK_ABOUT)

            # load defaults on first startup
            if not name in conf.plugins:
                conf.add_plugin_defaults(plugin_meta(module=name), name)
            
            # skip module if disabled
            if conf.plugins.get(name, 1) == False:
                __print__(dbg.STAT, "disabled plugin:", name)
                continue
            # or if it's a built-in (already imported)
            elif name in self.features or name in self.channels:
                continue
            
            # load plugin
            try:
                plugin = __import__("channels."+name, globals(), None, [""])
                #print [name for name,c in inspect.getmembers(plugin) if inspect.isclass(c)]
                plugin_class = plugin.__dict__[name]
                plugin_obj = plugin_class(parent=self)

                # add to .channels{}
                if issubclass(plugin_class, channels.GenericChannel):
                    self.channels[name] = plugin_obj
                # or .features{} for other plugin types
                else:
                    self.features[name] = plugin_obj
                
            except Exception as e:
                __print__(dbg.INIT, "load_plugin_channels: error initializing:", name, ", exception:")
                traceback.print_exc()

    # load application state (widget sizes, selections, etc.)
    def init_app_state(self):

        winlayout = conf.load("window")
        if (winlayout):

        if (conf.get("firstrun")):
            main.configwin.open(None)
            del conf.firstrun

        # run
        gtk.main()
        [callback() for callback in main.hooks["quit"]]
        __print__(dbg.PROC, r" gtk_main_quit ")
        
    # invoke command-line interface
    else:
        import cli
        cli.StreamTunerCLI(conf.args.action)

# run
if __name__ == "__main__":
    main()