from gi.repository import Gtk as gtk
from gi.repository import Gdk as gdk
import json


class FlowBoxWindow:

    def __init__(self):

        self.window = gtk.Window()
        self.screen = gdk.Screen.get_default()
        self.icon_theme = gtk.IconTheme.get_default()
        self.window.set_size_request(self.screen.get_width(),
                                     self.screen.get_height())
        self.window.set_name("flow_box")
        self.window.move(0, 0)
        self.window.set_keep_above(False)
        self.window.set_resizable(False)
        self.window.set_decorated(False)
        self.window.set_border_width(0)
        self.window.connect("destroy", gtk.main_quit)

        hbox_container = gtk.HBox()

        scrolled_window_categories = gtk.ScrolledWindow()
        scrolled_window_categories.set_policy(gtk.PolicyType.AUTOMATIC,
                                              gtk.PolicyType.NEVER)

        viewportv_categories = gtk.Viewport()
        viewportv_categories.add(hbox_container)
        scrolled_window_categories.add(viewportv_categories)
        self.window.add(scrolled_window_categories)

        self.notebook_categories = gtk.Notebook()
        hbox_container.add(self.notebook_categories)

        self.create_app_menu()
        self.window.show_all()

    def create_app_menu(self):

        for category in json.load(open('settings.json')):

            # create container for app buttons
            box_categories = gtk.Box()
            box_categories.set_name("scrolledwindow")
            box_categories.set_size_request(self.screen.get_width(),
                                            self.screen.get_height() - 101)
            pixbuffer = self.icon_theme.load_icon(category['icon-name'],
                                                  int(category['icon-size']),
                                                  0)
            image = gtk.Image()
            image.set_from_pixbuf(pixbuffer)

            # flowbox area
            app_window = gtk.ScrolledWindow()
            app_window.set_policy(gtk.PolicyType.NEVER,
                                  gtk.PolicyType.AUTOMATIC)

            apps_container = gtk.FlowBox()
            apps_container.set_valign(gtk.Align.START)
            apps_container.set_max_children_per_line(30)
            apps_container.set_selection_mode(gtk.SelectionMode.NONE)

            for app in category['apps']:
                app_label = gtk.Label(app['name'])
                app_button = gtk.Button()
                app_button.add(app_label)
                apps_container.add(app_button)

            app_window.add(apps_container)
            box_categories.add(app_window)

            self.notebook_categories.append_page(box_categories, image)

if __name__ == '__main__':
    app = FlowBoxWindow()
    gtk.main()