path: root/macropad.pyw

#!/usr/bin/env python3

import serial

import tkinter as tk
from tkinter import Text
import pystray
from pystray import MenuItem as item
from PIL import Image, ImageTk

from typing import Dict
import threading
import sys

from zope import component
import interfaces
from interfaces import endpoint
from interfaces.message import IMessage, Debug

import configparser

from os import path
script_path = path.dirname(path.realpath(__file__))
config_file = path.join(script_path, "config.ini")

config = configparser.ConfigParser(delimiters="=")
config.read(config_file)

from collections import OrderedDict

from configuration import Mapping
mapping = Mapping(config)


from queue import Queue
q = Queue()

component.provideAdapter(interfaces.endpoint.EndPoint)

#
# Guess the platform and the load the corresponding event listener
#

#
# How to connect to the peripherical
#

if config.has_section("connection.serial"):

    from serial_conn import SerialConnection
    endpoint = component.queryAdapter(SerialConnection(config["connection.serial"]), endpoint.IEndpoint)
    endpoint.queue = q
    endpoint.connect()
    component.provideUtility(endpoint, interfaces.endpoint.IEndpoint)

elif config.has_section("connection.socket"):

    from socket_conn import SocketConnection
    endpoint = component.queryAdapter(SocketConnection(config["connection.socket"]), endpoint.IEndpoint)
    endpoint.queue = q
    component.provideUtility(endpoint, interfaces.endpoint.IEndpoint)
    endpoint.connect()

if config.has_section("socket.serve"):

    import socketserver
    server = socketserver.Handler(config["socket.serve"], q)
else:
    server = None


class Icon(object):

    def __init__(self, image):
        menu=(
                item('Quit', self.quit_window), 
                item('Show', self.show_window, default=True),
                item('Reset',self.reset),
            )
        self.icon=pystray.Icon("name", image, "Macropad companion", menu)

        self.stop = threading.Event()
        self.show_hide = threading.Event()

        # Start the icon into a new thread in order to keep the main loop
        # control
        icon_thread = threading.Thread(target=self.icon.run)
        self.icon_thread = icon_thread

    def start(self):
        self.icon_thread.start()

    def quit(self):
        self.icon.stop()

    def quit_window(self):
        self.stop.set()

    def show_window(self):
        self.show_hide.set()

    def reset(self):
        mapping.reset()

class Application(object):

    def __init__(self):
        self.window = tk.Tk()
        self.text = Text(self.window, height=8)
        ## State of the #pplication
        self.running = True
        self.visible = False
        self.focused_window = None
        self.last_layout = None

        component.provideHandler(self.log)

        # Window property
        self.window.withdraw()
        self.window.title("Macropad companion")
        icon = path.join(script_path, "favicon.ico")
        try:
            self.window.iconbitmap(icon)
        except:
            pass
        self.text.pack()

        # When closing, return back to the iconified mode
        self.window.protocol("WM_DELETE_WINDOW", self.hide)
        # Start the application in iconified mode
        image=Image.open(icon)
        self.icon = Icon(image)
        self.icon.start()
        component.handle(Debug("Started"))


    def connect_desktop(self):
        """ Launch the thread listening events from the desktop
        """
        from sys import platform
        component.handle(Debug(platform))
        if platform == "win32":
            import win32
            window_listener = win32.Listener(mapping, q)
            component.provideUtility(window_listener, interfaces.desktopEvent.IDesktop)
            window_listener.start()

        elif platform == 'linux':
            import xlib
            xlib_listener = xlib.Listener(mapping, q)
            component.provideUtility(xlib_listener, interfaces.desktopEvent.IDesktop)
            component.handle(Debug("Starting xlib"))
            xlib_listener.start()

    def hide(self):
        self.icon.show_hide.clear()
        self.visible = False
        self.window.withdraw()
        self.update()

    def update(self):
        if self.icon.stop.is_set():
            self.icon.quit()
            self.running = False
            self.window.destroy()
            component.queryUtility(interfaces.desktopEvent.IDesktop).stop()
            return

        if self.icon.show_hide.is_set():
            if not self.visible:
                self.window.deiconify()
            else:
                self.window.withdraw()
            self.icon.show_hide.clear()
            self.visible = not self.visible

    @component.adapter(IMessage)
    def log(self, message : str):
        print(message.content)
        try:
            self.text.insert("1.0", "\n")
            self.text.insert("1.0", message.content)
            self.text.delete("200.0", "end")
        except Exception as e:
            print(e)


    def send(self, data: str):
        """ Send the configuration to the device.
            The configuration can be either
            - a dictionnary, and will be send as is
            - a string, and will be load in a file
            If the content is the same, ignore the message and return.
        """
        if data == self.last_layout:
            return
        # Merge the new layout with the previous one, ignoring all the null.
        self.last_layout = data

        conn = component.queryUtility(interfaces.endpoint.IEndpoint)
        if isinstance(data, dict):
            conn.send(data)
        elif isinstance(data, str):
            layer = mapping.get(data, None)
            if layer is not None:
                conn.send(layer)

    def associate(self, layout: Dict, name: str):
      mapping[name] = layout
      for key in layout.keys():
        component.handle(Debug("Associating %s with %s" % (name, key)))

    def exec(self):
        try:
            self.update()
            if server is not None: server.update()
            conn = component.queryUtility(interfaces.endpoint.IEndpoint)
            if not conn.isConnected():
                component.handle(Debug("Reconnecting…"))
    
                conn.state = conn.STATE_CONNECTING
                self.window.after(1000, conn.connect)
            else:
                # Check if we have something to read from the server, and by
                # the by if the server is still active.
                conn.fetch()
        except Exception as e:
            component.handle(Debug( str(e) ))
            print(e)
            # Got any error, stop the application properly
            self.icon.stop.set()

        if app.running:
            self.window.after(200, self.exec)

        while not q.empty():
            last_layout, app_ = q.get(False)
            self.send(last_layout)
            if app_ is not None: self.associate(last_layout, app_)


if __name__ == '__main__':
    # Start the main application, Initializing the message listener before
    # listening desktop events
    app = Application()
    app.connect_desktop()

    # Initialize the main loop
    app.exec()
    component.handle(Debug("Exec runned first"))
    try:
        app.window.mainloop()
    except:
        app.running = False
        app.window.destroy()
        app.icon.quit()
        component.queryUtility(interfaces.desktopEvent.IDesktop).stop()