3 from __future__ import with_statement
20 _moduleLogger = logging.getLogger(__name__)
23 def get_screen_orientation():
24 width, height = gtk.gdk.get_default_root_window().get_size()
26 return gtk.ORIENTATION_VERTICAL
28 return gtk.ORIENTATION_HORIZONTAL
31 def orientation_change_connect(handler, *args):
33 @param handler(orientation, *args) -> None(?)
35 initialScreenOrientation = get_screen_orientation()
36 orientationAndArgs = list(itertools.chain((initialScreenOrientation, ), args))
38 def _on_screen_size_changed(screen):
39 newScreenOrientation = get_screen_orientation()
40 if newScreenOrientation != orientationAndArgs[0]:
41 orientationAndArgs[0] = newScreenOrientation
42 handler(*orientationAndArgs)
44 rootScreen = gtk.gdk.get_default_root_window()
45 return gtk.connect(rootScreen, "size-changed", _on_screen_size_changed)
48 @contextlib.contextmanager
49 def flock(path, timeout=-1):
56 while timeSpent <= timeout or timeout == WAIT_FOREVER:
58 fd = os.open(path, os.O_CREAT | os.O_EXCL | os.O_RDWR)
62 if e.errno != errno.EEXIST:
67 assert acquired, "Failed to grab file-lock %s within timeout %d" % (path, timeout)
75 @contextlib.contextmanager
77 gtk.gdk.threads_enter()
81 gtk.gdk.threads_leave()
84 def find_parent_window(widget):
86 parent = widget.get_parent()
87 if isinstance(parent, gtk.Window):
94 Decorator that makes a generator-function into a function that will continue execution on next call
98 @functools.wraps(func)
99 def decorated_func(*args, **kwds):
101 a.append(func(*args, **kwds))
105 except StopIteration:
109 return decorated_func
112 def asynchronous_gtk_message(original_func):
114 @note Idea came from http://www.aclevername.com/articles/python-webgui/
117 def execute(allArgs):
118 args, kwargs = allArgs
120 original_func(*args, **kwargs)
123 @functools.wraps(original_func)
124 def delayed_func(*args, **kwargs):
125 gobject.idle_add(execute, (args, kwargs))
130 def synchronous_gtk_message(original_func):
132 @note Idea came from http://www.aclevername.com/articles/python-webgui/
135 @functools.wraps(original_func)
136 def immediate_func(*args, **kwargs):
138 return original_func(*args, **kwargs)
140 return immediate_func
146 ... def grep_sink(pattern):
147 ... print "Looking for %s" % pattern
150 ... if pattern in line:
152 >>> g = grep_sink("python")
154 >>> g.send("Yeah but no but yeah but no")
155 >>> g.send("A series of tubes")
156 >>> g.send("python generators rock!")
157 python generators rock!
161 @functools.wraps(func)
162 def start(*args, **kwargs):
163 cr = func(*args, **kwargs)
171 def printer_sink(format = "%s"):
173 >>> pr = printer_sink("%r")
180 >>> p = printer_sink()
185 >>> # p.throw(RuntimeError, "Goodbye")
191 print format % (item, )
197 Good for uses like with cochain to pick up any slack
204 def comap(function, target):
206 >>> p = printer_sink()
207 >>> cm = comap(lambda x: x+1, p)
218 mappedItem = function(*item)
219 target.send(mappedItem)
221 _moduleLogger.exception("Forwarding exception!")
222 target.throw(e.__class__, str(e))
225 def _flush_queue(queue):
226 while not queue.empty():
231 def queue_sink(queue):
233 >>> q = Queue.Queue()
234 >>> qs = queue_sink(q)
237 >>> qs.throw(RuntimeError, "Goodbye")
240 >>> print [i for i in _flush_queue(q)]
241 [(None, 'Hello'), (None, 'World'), (<type 'exceptions.RuntimeError'>, 'Goodbye'), (None, 'Meh'), (<type 'exceptions.GeneratorExit'>, None)]
246 queue.put((None, item))
248 queue.put((e.__class__, str(e)))
249 except GeneratorExit:
250 queue.put((GeneratorExit, None))
254 def decode_item(item, target):
258 elif item[0] is GeneratorExit:
262 target.throw(item[0], item[1])
266 def nonqueue_source(queue, target):
270 isDone = decode_item(item, target)
271 while not queue.empty():
275 def threaded_stage(target, thread_factory = threading.Thread):
276 messages = Queue.Queue()
278 run_source = functools.partial(nonqueue_source, messages, target)
279 thread = thread_factory(target=run_source)
280 thread.setDaemon(True)
283 # Sink running in current thread
284 return queue_sink(messages)
287 def log_exception(logger):
289 def log_exception_decorator(func):
291 @functools.wraps(func)
292 def wrapper(*args, **kwds):
294 return func(*args, **kwds)
296 logger.exception(func.__name__)
300 return log_exception_decorator
303 class LoginWindow(object):
305 def __init__(self, widgetTree):
307 @note Thread agnostic
309 self._dialog = widgetTree.get_widget("loginDialog")
310 self._parentWindow = widgetTree.get_widget("mainWindow")
311 self._serviceCombo = widgetTree.get_widget("serviceCombo")
312 self._usernameEntry = widgetTree.get_widget("usernameentry")
313 self._passwordEntry = widgetTree.get_widget("passwordentry")
315 self._serviceList = gtk.ListStore(gobject.TYPE_INT, gobject.TYPE_STRING)
316 self._serviceCombo.set_model(self._serviceList)
317 cell = gtk.CellRendererText()
318 self._serviceCombo.pack_start(cell, True)
319 self._serviceCombo.add_attribute(cell, 'text', 1)
320 self._serviceCombo.set_active(0)
322 widgetTree.get_widget("loginbutton").connect("clicked", self._on_loginbutton_clicked)
323 widgetTree.get_widget("logins_close_button").connect("clicked", self._on_loginclose_clicked)
325 def request_credentials(self,
327 defaultCredentials = ("", "")
332 if parentWindow is None:
333 parentWindow = self._parentWindow
335 self._serviceCombo.hide()
336 self._serviceList.clear()
338 self._usernameEntry.set_text(defaultCredentials[0])
339 self._passwordEntry.set_text(defaultCredentials[1])
342 self._dialog.set_transient_for(parentWindow)
343 self._dialog.set_default_response(gtk.RESPONSE_OK)
344 response = self._dialog.run()
345 if response != gtk.RESPONSE_OK:
346 raise RuntimeError("Login Cancelled")
348 username = self._usernameEntry.get_text()
349 password = self._passwordEntry.get_text()
350 self._passwordEntry.set_text("")
354 return username, password
356 def request_credentials_from(self,
359 defaultCredentials = ("", "")
364 if parentWindow is None:
365 parentWindow = self._parentWindow
367 self._serviceList.clear()
368 for serviceIdserviceName in services:
369 self._serviceList.append(serviceIdserviceName)
370 self._serviceCombo.set_active(0)
371 self._serviceCombo.show()
373 self._usernameEntry.set_text(defaultCredentials[0])
374 self._passwordEntry.set_text(defaultCredentials[1])
377 self._dialog.set_transient_for(parentWindow)
378 self._dialog.set_default_response(gtk.RESPONSE_OK)
379 response = self._dialog.run()
380 if response != gtk.RESPONSE_OK:
381 raise RuntimeError("Login Cancelled")
383 username = self._usernameEntry.get_text()
384 password = self._passwordEntry.get_text()
388 itr = self._serviceCombo.get_active_iter()
389 serviceId = int(self._serviceList.get_value(itr, 0))
390 self._serviceList.clear()
391 return serviceId, username, password
393 def _on_loginbutton_clicked(self, *args):
394 self._dialog.response(gtk.RESPONSE_OK)
396 def _on_loginclose_clicked(self, *args):
397 self._dialog.response(gtk.RESPONSE_CANCEL)
400 def safecall(f, errorDisplay=None, default=None, exception=Exception):
402 Returns modified f. When the modified f is called and throws an
403 exception, the default value is returned
405 def _safecall(*args, **argv):
407 return f(*args,**argv)
409 if errorDisplay is not None:
410 errorDisplay.push_exception(e)
415 class ErrorDisplay(object):
417 def __init__(self, widgetTree):
418 super(ErrorDisplay, self).__init__()
419 self.__errorBox = widgetTree.get_widget("errorEventBox")
420 self.__errorDescription = widgetTree.get_widget("errorDescription")
421 self.__errorClose = widgetTree.get_widget("errorClose")
422 self.__parentBox = self.__errorBox.get_parent()
424 self.__errorBox.connect("button_release_event", self._on_close)
427 self.__parentBox.remove(self.__errorBox)
429 def push_message_with_lock(self, message):
431 self.push_message(message)
433 def push_message(self, message):
434 self.__messages.append(message)
435 if 1 == len(self.__messages):
436 self.__show_message(message)
438 def push_exception_with_lock(self):
440 self.push_exception()
442 def push_exception(self):
443 userMessage = str(sys.exc_info()[1])
444 self.push_message(userMessage)
445 _moduleLogger.exception(userMessage)
447 def pop_message(self):
448 del self.__messages[0]
449 if 0 == len(self.__messages):
450 self.__hide_message()
452 self.__errorDescription.set_text(self.__messages[0])
454 def _on_close(self, *args):
457 def __show_message(self, message):
458 self.__errorDescription.set_text(message)
459 self.__parentBox.pack_start(self.__errorBox, False, False)
460 self.__parentBox.reorder_child(self.__errorBox, 1)
462 def __hide_message(self):
463 self.__errorDescription.set_text("")
464 self.__parentBox.remove(self.__errorBox)
467 class DummyErrorDisplay(object):
470 super(DummyErrorDisplay, self).__init__()
474 def push_message_with_lock(self, message):
475 self.push_message(message)
477 def push_message(self, message):
478 if 0 < len(self.__messages):
479 self.__messages.append(message)
481 self.__show_message(message)
483 def push_exception(self, exception = None):
484 userMessage = str(sys.exc_value)
485 _moduleLogger.exception(userMessage)
487 def pop_message(self):
488 if 0 < len(self.__messages):
489 self.__show_message(self.__messages[0])
490 del self.__messages[0]
492 def __show_message(self, message):
493 _moduleLogger.debug(message)
496 class MessageBox(gtk.MessageDialog):
498 def __init__(self, message):
500 gtk.MessageDialog.__init__(
503 gtk.DIALOG_MODAL|gtk.DIALOG_DESTROY_WITH_PARENT,
508 self.set_default_response(gtk.RESPONSE_OK)
509 self.connect('response', self._handle_clicked)
511 def _handle_clicked(self, *args):
515 class MessageBox2(gtk.MessageDialog):
517 def __init__(self, message):
519 gtk.MessageDialog.__init__(
522 gtk.DIALOG_DESTROY_WITH_PARENT,
527 self.set_default_response(gtk.RESPONSE_OK)
528 self.connect('response', self._handle_clicked)
530 def _handle_clicked(self, *args):
534 class PopupCalendar(object):
536 def __init__(self, parent, displayDate, title = ""):
537 self._displayDate = displayDate
539 self._calendar = gtk.Calendar()
540 self._calendar.select_month(self._displayDate.month, self._displayDate.year)
541 self._calendar.select_day(self._displayDate.day)
542 self._calendar.set_display_options(
543 gtk.CALENDAR_SHOW_HEADING |
544 gtk.CALENDAR_SHOW_DAY_NAMES |
545 gtk.CALENDAR_NO_MONTH_CHANGE |
548 self._calendar.connect("day-selected", self._on_day_selected)
550 self._popupWindow = gtk.Window()
551 self._popupWindow.set_title(title)
552 self._popupWindow.add(self._calendar)
553 self._popupWindow.set_transient_for(parent)
554 self._popupWindow.set_modal(True)
555 self._popupWindow.set_type_hint(gtk.gdk.WINDOW_TYPE_HINT_DIALOG)
556 self._popupWindow.set_skip_pager_hint(True)
557 self._popupWindow.set_skip_taskbar_hint(True)
560 self._popupWindow.show_all()
562 def _on_day_selected(self, *args):
564 self._calendar.select_month(self._displayDate.month, self._displayDate.year)
565 self._calendar.select_day(self._displayDate.day)
567 _moduleLogger.exception(e)
570 if __name__ == "__main__":
573 cal = PopupCalendar(None, datetime.datetime.now())
574 cal._popupWindow.connect("destroy", lambda w: gtk.main_quit())