~dpm/+junk/slowdefer

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from gi.repository import Gtk
import defer

import sys
sys.path.insert(0, "/usr/share/software-center/")
import softwarecenter.db.database


class SlowLoad(Gtk.Window):

    def __init__(self):
        Gtk.Window.__init__(self, title="Hello World")
        self.connect("delete-event", Gtk.main_quit)

        self.button = Gtk.Button(label="Dummy button")
        self.button.connect("clicked", self.on_button_clicked)
        self.add(self.button)

        self.file_contents = 'Slow load pending'

        deferred = defer.defer(self.slow_load)
        deferred.add_callback(self.on_complete)

    def on_button_clicked(self, widget):
        print 'I do nothing'

    def on_complete(self, results):
        print 'Finished:', results[0]

    def slow_load(self):
        print 'Started'
        db = softwarecenter.db.database.StoreDatabase()
        db._aptcache.open()
        db.open(use_axi=False, use_agent=False)
        appicons = []
        for doc in db:
            app = db.get_application(doc)
            appdetails = app.get_details(db)
            appicons.append((app.appname, app.pkgname, appdetails.icon))
        return appicons

if __name__ == '__main__':
    win = SlowLoad()
    win.show_all()
    Gtk.main()