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asyncjob: Some cleanups and simplifications

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This commit is contained in:
Cole Robinson 2012-01-27 21:46:12 -05:00
parent a1689d8873
commit e863c0554d
1 changed files with 24 additions and 15 deletions
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39
src/virtManager/asyncjob.py
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@ -35,6 +35,7 @@ class asyncJobWorker(threading.Thread):
def __init__(self, callback, args):
args = [callback] + args
threading.Thread.__init__(self, target=cb_wrapper, args=args)
self.setDaemon(True)
def run(self):
threading.Thread.run(self)
@ -102,16 +103,13 @@ class vmmAsyncJob(vmmGObjectUI):
@cancel_args: Arguments for optional cancel_back
"""
vmmGObjectUI.__init__(self, "vmm-progress.glade", "vmm-progress")
self.topwin.set_transient_for(parent)
self.async = bool(async)
self.show_progress = bool(show_progress)
self.cancel_job = cancel_back
self.cancel_args = cancel_args or []
self.cancel_args = [self] + self.cancel_args
if self.cancel_job:
self.widget("cancel-async-job").show()
else:
self.widget("cancel-async-job").hide()
self.job_canceled = False
self._error_info = None
@ -119,20 +117,23 @@ class vmmAsyncJob(vmmGObjectUI):
self.stage = self.widget("pbar-stage")
self.pbar = self.widget("pbar")
self.widget("pbar-text").set_text(text)
self.topwin.set_transient_for(parent)
self.is_pulsing = True
args = [self] + args
self.bg_thread = asyncJobWorker(callback, args)
self.bg_thread.setDaemon(True)
self.is_pulsing = True
self.window.signal_autoconnect({
"on_async_job_delete_event" : self.delete,
"on_async_job_cancel_clicked" : self.cancel,
})
# UI state
self.topwin.set_title(title)
self.widget("pbar-text").set_text(text)
if self.cancel_job:
self.widget("cancel-async-job").show()
else:
self.widget("cancel-async-job").hide()
#############
@ -181,23 +182,31 @@ class vmmAsyncJob(vmmGObjectUI):
def exit_if_necessary(self, force_exit=False):
thread_active = (self.bg_thread.isAlive() or not self.async)
if thread_active and not force_exit:
if self.is_pulsing and self.show_progress:
# Don't call pulse_pbar: this function is thread wrapped
self.pbar.pulse()
return True
else:
if not thread_active or force_exit:
if self.async:
gtk.main_quit()
return False
if not self.is_pulsing or not self.show_progress:
return True
gtk.gdk.threads_enter()
try:
self.pbar.pulse()
finally:
gtk.gdk.threads_leave()
return True
###########
# Actions #
###########
def run(self):
timer = self.safe_timeout_add(100, self.exit_if_necessary)
# Don't use safe_timeout_add, since it's mostly needless locking
# since a lot of these windows don't touch any UI
timer = gobject.timeout_add(100, self.exit_if_necessary)
if self.show_progress:
self.topwin.present()