def async_process_file(self, filename, end_callback):
appname = os.path.basename(self.app_path)
if not os.path.exists(self.app_path):
raise Exception(_("The <b>%s</b> application does not seem to be installed. Please check that it is present and that its path is correctly specified in preferences." ) % appname)
if not os.path.exists(filename):
raise Exception(_("The file %s does not seem to exist.") % filename)
self.app_setup(filename, end_callback)
argv = [ self.app_path ] + self.get_process_args(filename)
if config.data.os == 'win32':
import win32process
kw = { 'creationflags': win32process.CREATE_NO_WINDOW }
else:
kw = { 'preexec_fn': subprocess_setup }
try:
self.process = subprocess.Popen( argv,
bufsize=0,
shell=False,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
**kw )
except OSError as e:
self.cleanup()
msg = str(e.args)
raise Exception(_("Could not run %(appname)s: %(msg)s") % locals())
self.progress(.01, _("Processing %s") % GObject.filename_display_name(filename))
def execute_process():
self.convert(self.iterator())
self.progress(.95, _("Cleaning up..."))
self.cleanup()
self.progress(1.0)
end_callback()
return True
# Note: the "proper" way would be to use Gobject.io_add_watch,
# but last time I tried, this had cross-platform issues. The
# threading approach seems to work across platforms, so "if it
# ain't broke, don't fix it".
t=threading.Thread(target=execute_process)
t.start()
return self.package
