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94 行
3.2 KiB
94 行
3.2 KiB
#!/usr/bin/env python3.7
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import tkinter
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import threading
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from ChatConnection import ChatConnection
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class ChatInterface(object):
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def __init__(self, connection: ChatConnection):
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# set connection to use
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self.connection = connection
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# initialise tkinter window
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self.window = tkinter.Tk()
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self.window.title("Chatter") # window title
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# set method to trigger when window is close
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self.window.protocol("WM_DELETE_WINDOW", self.close)
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# end of window initialisation
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# initialise message frame
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self.messagesFrame = tkinter.Frame(self.window)
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# # add scrollBar to see previously recovered messages
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self.scrollBar = tkinter.Scrollbar(self.messagesFrame)
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self.scrollBar.pack(side=tkinter.RIGHT, fill=tkinter.Y)
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# # add messagesList to print recovered messages
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self.messagesList = tkinter.Listbox(
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self.messagesFrame, height=15, width=50, yscrollcommand=self.scrollBar.set)
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self.messagesList.pack(side=tkinter.LEFT, fill=tkinter.BOTH)
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self.messagesList.pack()
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self.messagesFrame.pack()
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# end of message frame initialisation
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# initialise input
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self.input = tkinter.StringVar()
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self.input.set("Type your messages here.")
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# # initialise input frame
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self.inputFrame = tkinter.Entry(self.window, textvariable=self.input)
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self.inputFrame.bind("<Return>", self.send)
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self.inputFrame.pack()
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# # initialise send button
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self.sendButton = tkinter.Button(
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self.window, text="Send", command=self.send)
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self.sendButton.pack()
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# end of input initialisation
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def close(self, event=None) -> None:
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"""
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Set input to ':quit' and trigger send method
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"""
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self.input.set(":quit")
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self.send()
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def send(self, event=None) -> None:
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"""
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Send message to connection
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"""
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msg = self.input.get()
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# check if input is quit command
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if msg != ':quit':
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# clear the input bar
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self.input.set('')
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# output the client message to message list
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self.messagesList.insert(tkinter.END, '[YOU] {}'.format(msg))
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# send the message to connection
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self.connection.send(msg)
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else:
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# close the connection and window
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self.connection.close()
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self.window.quit()
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def listener(self) -> None:
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"""
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Listener method to keep receiving new message from
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connection
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"""
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while True:
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try:
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# receive messages from connection
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msg = self.connection.recv()
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# add recevied message to message list
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self.messagesList.insert(tkinter.END, msg[:-1])
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except OSError:
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break
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def start(self) -> None:
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"""
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Start background listener and tkinter.mainloop
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"""
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# initialise background listener as daemon thread
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backgroundListener = threading.Thread(target=self.listener)
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backgroundListener.daemon = True
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backgroundListener.start()
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# start tkinter main loop and open the GUI window
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tkinter.mainloop()
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