pywmreceived/pywmreceived.py

#!./venv/bin/python3

"""pywmreceived.py
WindowMaker dockapp pidgin messages 
Copyright (C) 2025 Fredrick W. Warren
Licensed under the GNU General Public License.
"""

import logging
from wmdocklib import wmoo as wmoo
import dbus
import dbus.mainloop.glib
from gi.repository import GLib
import threading
from icecream import ic
from xpm_resources import palette, background, patterns

line_height = 9

logging.basicConfig(level=logging.INFO)
logger = logging.getLogger(__name__)


class Application(wmoo.Application):
    """
    Display dockapp and respond to libpurple dbus
    messages ReceivedImMsg and SentImMsg
    """

    def __init__(self, *args, **kwargs):
        """
        """
        wmoo.Application.__init__(self, *args, **kwargs)
        self._count = 0
        self._flasher = 0 
        self.backlit = 0 
        self.lines = [ # name, messages received
            ["  CATHY", 0],
            ["  FRANK", 0],
            ["  TIM", 0],
            ["  LEE", 0],
            ["  TANDA", 0],
            ["  OTHER", 0],
        ]
        # Initialize D-Bus and connect to Pidgin's ReceivedIMMsg signal
        self.register_dbus()

    def register_dbus(self):
        """
        Register im.pidgin.purple dbus to listen for messages
        """
        try:
            # Set up the D-Bus main loop
            dbus.mainloop.glib.DBusGMainLoop(set_as_default=True)

            # Connect to the session bus
            bus = dbus.SessionBus()

            # Obtain the Pidgin D-Bus service object
            purple_service = bus.get_object(
                "im.pidgin.purple.PurpleService",
                "/im/pidgin/purple/PurpleObject"
            )

            # Get the interface to interact with
            purple_interface = dbus.Interface(
                purple_service,
                "im.pidgin.purple.PurpleInterface"
            )

            # Connect the ReceivedIMMsg signal to the handler
            purple_interface.connect_to_signal(
                "ReceivedImMsg",
                self.handle_received_im_msg
            )
            # Connect the SentIMMsg signal to the handler
            purple_interface.connect_to_signal(
                "SentImMsg",
                self.handle_sent_im_msg
            )

            ic("Connected to Pidgin's ReceivedIMMsg signal successfully.")
        
        except dbus.DBusException as e:
            print("Failed to connect to Pidgin's D-Bus interface:", e)

    def handle_received_im_msg(self, account, sender, message, conversation, flags):
        """
        Callback function that handles the ReceivedIMMsg signal.
        Prints the sender and message.

        Parameters:
            account (str): The account from which the message was received.
            sender (str): The sender's identifier.
            message (str): The message content.
            conversation (str): The conversation identifier.
            flags (int): Message flags.
        """
        ic("")
        ic(f"sender: {sender}")
        ic(f"message: {message}")
        if self.backlit:
            self._flasher = 8
        else:
            self._flasher = 7

    def handle_sent_im_msg(self, account, recepient, message):
        """
        Callback function that handles the SentImMsg signal.
        Prints the sender and message.

        Parameters:
            recepient (str): The recepien's identifier.
            message (str): The message content.
        """
        ic("")
        ic(f"recepient: {recepient}")
        ic(f"message: {message}")

    def draw_string(self, xstart, ystart, text):
        """
        Draw text in dockapp with normal or backlit backround

        Parameters:
            xstart (int): pixels from left edge of dockapp
            ystart (int): pixels from top edge of dockapp
            text (str): text to display, will be trundicated
        """
        for char in text:
            if char >= "A" and char <="Z":
                x = (ord(char) -65) * 6
                y = 1
            elif char >= "0" and char <="9":
                x = (ord(char) -48) * 6
                y = 10 
            elif char == " ":
                x = 6 * 10
                y = 10
            elif char == "-":
                x = 6 * 11
                y = 10
            elif char == ".":
                x = 6 * 12
                y = 10
            elif char == "'":
                x = 6 * 13
                y = 10
            elif char == "(":
                x = 6 * 14 
                y = 10
            elif char == ")":
                x = 6 * 15
                y = 10
            elif char == "*":
                x = 6 * 16
                y = 10
            elif char == "/":
                x = 6 * 17
                y = 10
            else:
                continue
            self.putPattern(x, y + (self.backlit * 17), 6, 7, xstart, ystart)
            xstart += 6

    def draw_background(self):
        """
        Redraw background of dockapp
        """
        self.putPattern(0 + (self.backlit * 62), 36, 64, 64, 0, 0)

    def draw_all_text(self):
        """
        Redraw all text
        """
        for index, line in enumerate(self.lines[:6]):
            self.draw_string(9, 6 + (index * line_height), line[0])

    def toggle_backlight(self, event):
        """
        Toggle the state of the dockapp background

        Parameters:
        """
        self.backlit = 1 - self.backlit
        self.draw_background()
        self.draw_all_text()

    def backlight_off(self, event):
        """
        Turn off the backlight mode in response to a mouseclick

        Parameters:
        """
        self._flasher = 0
        if self.backlit:
            self.toggle_backlight(True)

    def update(self):
        """
        Update display 
        """
        wmoo.Application.update(self)
        self._count += 1
        if self._count <= 3:
            return
        self._count = 0
        if self._flasher:
            self._flasher -= 1
            self.toggle_backlight(True)

    
def run_glib_mainloop():
    """
    Runs the GLib main loop. This should be executed in a separate thread.
    """
    loop = GLib.MainLoop()
    ic("Start Loop")
    try:
        loop.run()
    except KeyboardInterrupt:
        loop.quit()

def main():
    """
    The main entry point of the application.

    Parameters:
    """
    app = Application(font_name='5x8',
                      margin = 3,
                      bg=0,
                      fg=2,
                      palette = palette,
                      background = background,
                      patterns = patterns)
    # app.addCallback(app.previousRadio, 'buttonrelease', area=( 6,29,15,38))
    # 6x7 grey1=1   grey2=10  green1=18 green2=27
    app.draw_background()
    app.draw_all_text()
    app.addCallback(app.backlight_off, 'buttonrelease', area=(2,2,62,62))

    # Start the GLib main loop in a separate thread
    glib_thread = threading.Thread(target=run_glib_mainloop, daemon=True)
    glib_thread.start()
    
    # Run the application's main loop
    app.run()


if __name__ == '__main__':
    main()