Python unity indicator applet and glade child window

Question

I have created an unity indicator applet with python and glade. Here is the screenshot that appears when indicator applet is clicked. You can see the preferences menu. When this preferences menu is clicked, it opens a new window.

Indicator Applet Menu

Preference Window

Now the problem is when I click on close button, the whole application exists.

The code that triggers the preference window is as shown below :

def action_preferences(self, widget):
    '''
    Show the preferences window
    '''
    base = PreferenceWindow()
    base.main()

    self.menu_setup()

preference.py has the following code :

import sys
import json
import pynotify

try:
    import pygtk
    pygtk.require("2.0")
except:
    pass
try:
    import gtk
    import gtk.glade
except:
    print("GTK is not Available")
    sys.exit(1)

class PreferenceWindow:
    ui = None
    configs = {}
    notify = None
    window = None

    def __init__(self):

        if not pynotify.init ("nepal-loadshedding"):
            sys.exit (1)

        self.ui = gtk.glade.XML("pref_ui.glade")

        # Get the preference saved previously
        self.configs = self.parse_configs()

        saved_group_value = str(self.configs.get("GROUP"))

        self.ui.get_widget("text_group_number").set_text(saved_group_value)

        dic = {
            "on_btn_pref_ok_clicked":self.on_save_preference,
            "on_btn_pref_close_clicked":self.on_close,
            "on_preference_window_destroy":self.on_quit,
            }

        self.ui.signal_autoconnect(dic)

        if self.window is None:               
            self.window = self.main()

    def parse_configs(self):
        self.configs = json.load(open("config.txt"))
        return self.configs

    def save_configs(self, key, value):
        self.configs[key] = int(value)
        json.dump(self.configs, open("config.txt", "wb"))
        return True

    def on_save_preference(self, widget):
        group_number = self.ui.get_widget("text_group_number").get_text()
        self.save_configs("GROUP", group_number)

        # try the icon-summary case
        if self.notify == None:
            self.notify = pynotify.Notification ("Nepal Loadshedding", "Group saved successfully to : " + group_number)
        else:
            self.notify.update("Nepal Loadshedding", "Group saved successfully to : " + group_number)
            self.notify.set_timeout(100)

        self.notify.show()
        print "Saved successfully"

    def on_close(self, widget):
        print 'close event called'

    def on_quit(self, widget):
        sys.exit(0)

    def main(self):
        gtk.main()

xOneca · Accepted Answer · 2013-11-27 22:23:16Z

0

You can't call sys.exit() because it will make your entire application to terminate (as you can see). What you have to do is call gtk.main_quit(). When you click close button, you can destroy the window.

def on_close(self, widget):
    self.ui.get_widget("<window-name>").destroy()

def on_quit(self, widget):
    gtk.main_quit()

Additionally, you call two times PreferencesWindow.main() (one at the bottom of __init__() and the second time after instantiation, with base.main()), which in turn calls to gtk.main(). You have to remove one of them or your application will get stuck on the second one.

edited Nov 27, 2013 at 22:23

answered Nov 22, 2013 at 9:13

xOneca

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4 Comments

Samundra Over a year ago

Thank you for the feedback. I have already changed the code. Actually I was looking a way to use preference kind of window that will be closed after its sole purpose. If you look at this gist gist.github.com/samundra/7637068 on line 97 you can see that I have initialized a preference window. I would like this winodw to be closed keeping the normal flow of program.

xOneca Over a year ago

That code is the same you had posted here. When you call base.main(), the flow will stop there until you close the Preferences window. When that happens, action_preferences will finish and base will be destroyed as it is out of scope.

xOneca Over a year ago

I have noted that you call gtk.main() twice. You have to call it only once. I have added that to the answer.

Samundra Over a year ago

Thank you for the changes. I will have look on it when I am home. Currently I in office.

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