main_window.py

# encoding = utf-8
import re
import platform
import tkinter as tk
from tkinter import *
from tkinter.ttk import *

from i18n import I18n
import widgets
import settings_window
import about_window
import style
def empty_function():
    raise NotImplementedError("The function is not implemented yet.")

class MainWindow(Tk):
    def __init__(self):
        super().__init__()
        self.title("You-Get GUI")
        self.geometry("500x280")
        self.resizable(False, False)
        self.iconbitmap("assets/icon.ico")
        self.settings_window = None
        self.about_window = None
        style.init_styles(self)
        self.create_widgets()

    def create_widgets(self):
        self.main_menu = tk.Menu(
            self,
            borderwidth=0,
            background="#202020",
            foreground="#ffffff",
            activebackground="#6e6e6e",
            activeforeground="#ffffff",
        )
        self.config(menu=self.main_menu)
        self.main_menu.add_command(
            label=I18n().get("main_window.main_menu.settings"),
            command=self.show_settings_window,
        )
        self.main_menu.add_command(
            label=I18n().get("main_window.main_menu.about"),
            command=self.show_about_window,
        )

        self.logo_image_ph = PhotoImage(file="assets/logo.png")
        self.logo_label = Label(self, image=self.logo_image_ph, style="Logo.TLabel")
        self.main_f=Frame(self,borderwidth=0,style="blackf.TFrame")
        self.url_f=Frame(self.main_f,borderwidth=0,style="blackf.TFrame")
        self.url_e=widgets.PlaceholderEntry(self.url_f,
                                            fieldbackground="#202020", 
                                            placeholder_color="#444444",
                                            normal_color="#BDBDBD",
                                            placeholder=I18n().get("main_window.url_placeholder"))
        self.url_e.config(font=("Arial Narrow", 9))
        self.url_b=widgets.Button(self.url_f, text=I18n().get("main_window.download_button"),
                                  bg_normal="#202020", fg_normal="#ffffff",
                                  bg_hover="#6e6e6e", fg_hover="#ffffff",
                                  bg_press="#9e9e9e", fg_press="#ffffff",
                                  font=("Arial Narrow", 10, ),
                                  borderwidth=1,
                                  height=15,
                                  highlightthickness=1,
                                  highlightbackground="#6e6e6e",)
        self.status_f=Frame(self,borderwidth=0, style="blackf.TFrame")
        self.status_processbar=Frame(self.status_f,borderwidth=0,height=5,
                         width=0,style="lightf.TFrame")
        self.status_label=Label(self.status_f, font=("Segoe UI", 10), style="prompt.TLabel",
                    text=I18n().get("main_window.download_status.pending"))

    def bind_download(self, callback):
        self.url_b.config(command=callback)
        # Bind Enter/Return to the entry widget so the callback only fires
        # when the user presses Enter while focused in the URL entry.
        try:
            self.url_e.bind("<Return>", lambda e: callback())
            self.url_e.bind("<KP_Enter>", lambda e: callback())
        except Exception:
            # fallback: bind to root Return event but ensure focus is on url_e
            self.bind("<Return>", lambda e: callback() if self.focus_get() == self.url_e else None)
        return callback
    

    def show_settings_window(self):
        if self.settings_window is None or not self.settings_window.winfo_exists():
            self.settings_window = settings_window.SettingsWindow(self)
        self.settings_window.deiconify()
        self.settings_window.lift()
        self.settings_window.focus_force()

    def show_about_window(self):
        if self.about_window is None or not self.about_window.winfo_exists():
            self.about_window = about_window.AboutWindow(self)
        self.about_window.deiconify()
        self.about_window.lift()
        self.about_window.focus_force()
        
    def pack(self):
        self.logo_label.pack(pady=10,side=TOP)
        self.url_e.pack(side=LEFT, fill=X, expand=True,ipady=4)
        self.url_b.pack(side=RIGHT, fill=Y, pady=1 if platform.system()=='Windows' else None)
        self.url_f.pack(side=TOP, fill=X)
        self.status_processbar.pack(anchor=SW, pady=(0, 2))
        self.status_label.pack(anchor=SW)
        self.status_f.pack(side=BOTTOM, padx=10, pady=(0, 5), fill=X)
        self.main_f.pack(side=BOTTOM, padx=10, fill=X)
        
    def set_process(self, value:float, piece:str="", speed:str="", received_fraction:str=""):
        self.status_label.config(text=I18n().get("main_window.download_status.downloading")
                                 .format(received_fraction=received_fraction, 
                                         progress="%.2f"%(value*100), piece=piece, speed=speed))
        self.status_processbar.config(width=self.status_f.winfo_width() * value)
    
    def demo_download(self):
        print(f"Downloading from: {self.url_e.get()}")
        self.set_process(0)
        url_pattern = r'https?://[^\s]+'
        match = re.search(url_pattern, self.url_e.get())
        if not match:
            print("Invalid URL")
            return

if __name__ == "__main__":
    app = MainWindow()
    app.bind_download(app.demo_download)
    app.pack()
    app.mainloop()