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Add a cancel callback to ProceedNotification

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This commit is contained in:
Kovid Goyal 2011-06-06 09:48:37 -06:00
parent 6f087f87d8
commit 95731c3be0
1 changed files with 9 additions and 4 deletions
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13
src/calibre/gui2/dialogs/message_box.py
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@ -154,13 +154,16 @@ _proceed_memory = []
class ProceedNotification(MessageBox): # {{{ class ProceedNotification(MessageBox): # {{{
def __init__(self, callback, payload, html_log, log_viewer_title, title, msg, def __init__(self, callback, payload, html_log, log_viewer_title, title, msg,
det_msg='', show_copy_button=False, parent=None): det_msg='', show_copy_button=False, parent=None,
cancel_callback=None):
''' '''
A non modal popup that notifies the user that a background task has A non modal popup that notifies the user that a background task has
been completed. been completed.
:param callback: A callable that is called with payload if the user :param callback: A callable that is called with payload if the user
asks to proceed. Note that this is always called in the GUI thread asks to proceed. Note that this is always called in the GUI thread.
:param cancel_callback: A callable that is called with the payload if
the users asks not to proceed.
:param payload: Arbitrary object, passed to callback :param payload: Arbitrary object, passed to callback
:param html_log: An HTML or plain text log :param html_log: An HTML or plain text log
:param log_viewer_title: The title for the log viewer window :param log_viewer_title: The title for the log viewer window
@ -181,7 +184,7 @@ class ProceedNotification(MessageBox): # {{{
self.vlb.clicked.connect(self.show_log) self.vlb.clicked.connect(self.show_log)
self.det_msg_toggle.setVisible(bool(det_msg)) self.det_msg_toggle.setVisible(bool(det_msg))
self.setModal(False) self.setModal(False)
self.callback = callback self.callback, self.cancel_callback = callback, cancel_callback
_proceed_memory.append(self) _proceed_memory.append(self)
def show_log(self): def show_log(self):
@ -192,9 +195,11 @@ class ProceedNotification(MessageBox): # {{{
try: try:
if result == self.Accepted: if result == self.Accepted:
self.callback(self.payload) self.callback(self.payload)
elif self.cancel_callback is not None:
self.cancel_callback(self.payload)
finally: finally:
# Ensure this notification is garbage collected # Ensure this notification is garbage collected
self.callback = None self.callback = self.cancel_callback = None
self.setParent(None) self.setParent(None)
self.finished.disconnect() self.finished.disconnect()
self.vlb.clicked.disconnect() self.vlb.clicked.disconnect()