Gradience/src/welcome.py

from gi.repository import Gtk, Adw, Gio, Gdk
from material_color_utilities_python import *
from .constants import rootdir
from .run_async import RunAsync

import time
@Gtk.Template(resource_path=f"{rootdir}/ui/welcome.ui")
class GradienceWelcomeWindow(Adw.Window):
    __gtype_name__ = "GradienceWelcomeWindow"

    __settings = Gtk.Settings.get_default()

    carousel = Gtk.Template.Child()
    btn_close = Gtk.Template.Child()
    btn_back = Gtk.Template.Child()
    btn_next = Gtk.Template.Child()
    btn_install = Gtk.Template.Child()
    progressbar = Gtk.Template.Child()
    page_welcome = Gtk.Template.Child()
    page_gradience = Gtk.Template.Child()
    page_configure = Gtk.Template.Child()
    page_download = Gtk.Template.Child()
    page_finish = Gtk.Template.Child()
    img_welcome = Gtk.Template.Child()
    label_skip = Gtk.Template.Child()

    carousel_pages = [
        "welcome",
        "gradience",
        "configure",
        "download",
        "finish"
    ]
    images = [
        "/com/github/GradienceTeam/Gradience/images/images/gradience-welcome.svg",
        "/com/github/GradienceTeam/Gradience/images/images/gradience-welcome-night.svg",
    ]

    def __init__(self, window, **kwargs) -> None:
        super().__init__(**kwargs)
        self.set_transient_for(window)

        # common variables and references
        self.window = window

        # connect signals
        self.connect("close-request", self.__quit)
        self.carousel.connect('page-changed', self.__page_changed)
        self.btn_close.connect("clicked", self.__close_window)
        self.btn_back.connect("clicked", self.__previous_page)
        self.btn_next.connect("clicked", self.__next_page)
        self.btn_install.connect("clicked", self.__install_runner)
        self.__settings.connect(
            "notify::gtk-application-prefer-dark-theme",
            self.__theme_changed)

        self.btn_close.set_sensitive(False)

        if self.__settings.get_property("gtk-application-prefer-dark-theme"):
            self.img_welcome.set_from_resource(self.images[1])

        self.__page_changed()

    def __theme_changed(self, settings, key):
        self.img_welcome.set_from_resource(
            self.images[settings.get_property("gtk-application-prefer-dark-theme")])

    def __get_page(self, index):
        return self.carousel_pages[index]

    def __page_changed(self, widget=False, index=0, *_args):
        """
        This function is called on first load and when the user require
        to change the page. It sets the widgets' status according to
        the step of the onboard progress.
        """
        page = self.__get_page(index)

        if page == "finish":
            self.btn_back.set_visible(False)
            self.btn_next.set_visible(False)
        elif page == "download":
            self.btn_back.set_visible(True)
            self.btn_next.set_visible(False)
            self.btn_install.set_visible(True)
        elif page == "welcome":
            self.btn_back.set_visible(False)
            self.btn_next.set_visible(True)
        else:
            self.btn_back.set_visible(True)
            self.btn_next.set_visible(True)

    @staticmethod
    def __quit(widget=False):
        quit()

    def __install_runner(self, widget):
        def set_completed(result, error=False):
            self.label_skip.set_visible(False)
            self.btn_close.set_sensitive(True)
            self.window.settings.set_boolean("first-run", False)
            self.__next_page()

        self.__installing = True
        self.btn_back.set_visible(False)
        self.btn_next.set_visible(False)
        self.btn_install.set_visible(False)
        self.progressbar.set_visible(True)
        self.carousel.set_allow_long_swipes(False)
        self.carousel.set_allow_mouse_drag(False)
        self.carousel.set_allow_scroll_wheel(False)
        self.set_deletable(False)

        # RunAsync(self.pulse)
        # RunAsync(
        #    callback=set_completed,
        #    install_latest=True,
        #    first_run=True
        # )

        print("install")

        set_completed("")

    def __previous_page(self, widget=False):
        index = int(self.carousel.get_position())
        previous_page = self.carousel.get_nth_page(index - 1)
        self.carousel.scroll_to(previous_page, True)

    def __next_page(self, widget=False):
        index = int(self.carousel.get_position())
        next_page = self.carousel.get_nth_page(index + 1)
        self.carousel.scroll_to(next_page, True)

    def pulse(self):
        # This function update the progress bar every 1s.
        while True:
            time.sleep(.5)
            self.progressbar.pulse()

    def __close_window(self, widget):
        self.destroy()
        self.window.present()