class DoItInBackground(GObject.GObject):
__gsignals__ = {
'started': (GObject.SIGNAL_RUN_FIRST, GObject.TYPE_NONE, (int,)),
'ended': (GObject.SIGNAL_RUN_FIRST, GObject.TYPE_NONE, (bool,)),
'start_one': (GObject.SIGNAL_RUN_FIRST, GObject.TYPE_NONE, (str,)),
'end_one': (GObject.SIGNAL_RUN_FIRST, GObject.TYPE_NONE, (float,)),
}
def __init__(self, title, parent, elements):
GObject.GObject.__init__(self)
self.elements = elements
self.stopit = False
self.ok = True
self.progreso = Progreso(title, parent)
self.progreso.set_total_size(len(elements))
self.progreso.connect('i-want-stop', self.stop)
self.connect('start_one', self.progreso.set_element)
self.connect('end_one', self.progreso.increase)
self.connect('ended', self.progreso.close)
self.downloaders = []
def emit(self, *args):
GLib.idle_add(GObject.GObject.emit, self, *args)
def stop(self, *args):
if len(self.downloaders) > 0:
for downloader in self.downloaders:
downloader.cancel()
self.emit('end_one', 1.0)
def run(self):
try:
executor = futures.ThreadPoolExecutor()
for element in self.elements:
downloader = executor.submit(download, element, self)
self.downloaders.append(downloader)
self.progreso.run()
except Exception as e:
self.ok = False
print(e)
